Kategorien- Button Funktion

.env

@@ -1,2 +1,15 @@
-SECRET_KEY=eed9298856dc9363cd32778265780d6904ba24e6a6b815a2cc382bcdd767ea7b
+# MindMap Umgebungsvariablen
-OPENAI_API_KEY=sk-dein-openai-api-schluessel-hier
+# Kopiere diese Datei zu .env und passe die Werte an
+
+# Flask
+FLASK_APP=app.py
+FLASK_ENV=development
+SECRET_KEY=your-secret-key-replace-in-production
+
+# OpenAI API
+OPENAI_API_KEY=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
+
+# Datenbank
+# Bei Bedarf kann hier eine andere Datenbank-URL angegeben werden
+# Der Pfad wird relativ zum Projektverzeichnis angegeben
+# SQLALCHEMY_DATABASE_URI=sqlite:////absoluter/pfad/zu/database/systades.db 

.gitignore

@@ -0,0 +1 @@
+logs/app.log

Dockerfile

@@ -0,0 +1,33 @@
+# Dockerfile
+FROM python:3.11-slim
+
+# Arbeitsverzeichnis in Container
+WORKDIR /app
+
+# Systemabhängigkeiten installieren und Verzeichnisse anlegen
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends gcc && \
+    rm -rf /var/lib/apt/lists/* && \
+    mkdir -p /app/database
+
+# pip auf den neuesten Stand bringen und Requirements installieren
+COPY requirements.txt ./
+RUN pip install --upgrade pip && \
+    pip install --no-cache-dir -U -r requirements.txt
+
+# Anwendungscode kopieren
+COPY . .
+
+# Berechtigungen für database-Ordner
+RUN chmod -R 777 /app/database
+
+# Exponiere Port 5000 für Flask
+EXPOSE 5000
+
+# Setze Umgebungsvariablen
+ENV FLASK_APP=app.py
+ENV PYTHONUNBUFFERED=1
+ENV PYTHONDONTWRITEBYTECODE=1
+
+# Startkommando mit spezifischen Flags für Produktion
+CMD ["python", "app.py"] 

docker-compose.yml

@@ -0,0 +1,17 @@
+version: '3.9'
+
+services:
+  web:
+    build: .
+    image: systades_app:latest
+    container_name: systades_app
+    restart: always
+    env_file:
+      - .env
+    ports:
+      - "5000:5000"
+    volumes:
+      - ./database:/app/database
+
+volumes:
+  db_data: 

example.env

@@ -2,12 +2,14 @@
 # Kopiere diese Datei zu .env und passe die Werte an
 
 # Flask
-SECRET_KEY=dein-geheimer-schluessel-hier
+FLASK_APP=app.py
+FLASK_ENV=development
+SECRET_KEY=mein-sicherer-schluessel-fuer-entwicklung
 
 # OpenAI API
-OPENAI_API_KEY=sk-dein-openai-api-schluessel-hier
+OPENAI_API_KEY=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
 
 # Datenbank
 # Bei Bedarf kann hier eine andere Datenbank-URL angegeben werden
 # Der Pfad wird relativ zum Projektverzeichnis angegeben
-# SQLALCHEMY_DATABASE_URI=sqlite:////absoluter/pfad/zu/database/systades.db 
+SQLALCHEMY_DATABASE_URI=sqlite:///database/systades.db 

init_db.py

@@ -1,19 +1,29 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
-from app import app, initialize_database, db_path
-from models import db, User, Thought, Comment, MindMapNode, ThoughtRelation, ThoughtRating, RelationType
-from models import Category, UserMindmap, UserMindmapNode, MindmapNote
 import os
 import sqlite3
 from flask import Flask
 from flask_sqlalchemy import SQLAlchemy
 from datetime import datetime
 
+# Pfad zur Datenbank
+basedir = os.path.abspath(os.path.dirname(__file__))
+db_path = os.path.join(basedir, 'database', 'systades.db')
+
+# Stelle sicher, dass das Verzeichnis existiert
+db_dir = os.path.dirname(db_path)
+os.makedirs(db_dir, exist_ok=True)
+
 # Erstelle eine temporäre Flask-App, um die Datenbank zu initialisieren
 app = Flask(__name__)
-app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///systades.db'
+app.config['SQLALCHEMY_DATABASE_URI'] = f'sqlite:///{db_path}'
 app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
+
+# Importiere die Modelle nach der App-Initialisierung
+from models import db, User, Thought, Comment, MindMapNode, ThoughtRelation, ThoughtRating, RelationType
+from models import Category, UserMindmap, UserMindmapNode, MindmapNote
+
 db.init_app(app)
 
 def init_db():
@@ -69,45 +79,111 @@ def create_default_users():
 
 def create_default_categories():
     """Erstellt die Standardkategorien für die Mindmap"""
-    categories = [
+    # Hauptkategorien
+    main_categories = [
         {
-            'name': 'Konzept',
+            "name": "Philosophie",
-            'description': 'Abstrakte Ideen und theoretische Konzepte',
+            "description": "Philosophisches Denken und Konzepte",
-            'color_code': '#6366f1',
+            "color_code": "#9F7AEA",
-            'icon': 'lightbulb'
+            "icon": "fa-brain"
         },
         {
-            'name': 'Technologie',
+            "name": "Wissenschaft",
-            'description': 'Hardware, Software, Tools und Plattformen',
+            "description": "Wissenschaftliche Disziplinen und Erkenntnisse",
-            'color_code': '#10b981',
+            "color_code": "#60A5FA",
-            'icon': 'cpu'
+            "icon": "fa-flask"
         },
         {
-            'name': 'Prozess',
+            "name": "Technologie",
-            'description': 'Workflows, Methodologien und Vorgehensweisen',
+            "description": "Technologische Entwicklungen und Anwendungen",
-            'color_code': '#f59e0b',
+            "color_code": "#10B981",
-            'icon': 'git-branch'
+            "icon": "fa-microchip"
         },
         {
-            'name': 'Person',
+            "name": "Künste",
-            'description': 'Personen, Teams und Organisationen',
+            "description": "Künstlerische Ausdrucksformen und Werke",
-            'color_code': '#ec4899',
+            "color_code": "#F59E0B",
-            'icon': 'user'
+            "icon": "fa-palette"
         },
         {
-            'name': 'Dokument',
+            "name": "Psychologie",
-            'description': 'Dokumentationen, Referenzen und Ressourcen',
+            "description": "Mentale Prozesse und Verhaltensweisen",
-            'color_code': '#3b82f6',
+            "color_code": "#EF4444",
-            'icon': 'file-text'
+            "icon": "fa-brain"
         }
     ]
     
-    for cat_data in categories:
+    # Hauptkategorien erstellen
+    category_map = {}
+    for cat_data in main_categories:
         category = Category(**cat_data)
         db.session.add(category)
+        db.session.flush()  # ID generieren
+        category_map[cat_data["name"]] = category
+    
+    # Unterkategorien für Philosophie
+    philosophy_subcategories = [
+        {"name": "Ethik", "description": "Moralische Grundsätze", "icon": "fa-balance-scale", "color_code": "#8B5CF6"},
+        {"name": "Logik", "description": "Gesetze des Denkens", "icon": "fa-project-diagram", "color_code": "#8B5CF6"},
+        {"name": "Erkenntnistheorie", "description": "Natur des Wissens", "icon": "fa-lightbulb", "color_code": "#8B5CF6"}
+    ]
+    
+    # Unterkategorien für Wissenschaft
+    science_subcategories = [
+        {"name": "Physik", "description": "Studie der Materie und Energie", "icon": "fa-atom", "color_code": "#3B82F6"},
+        {"name": "Biologie", "description": "Studie des Lebens", "icon": "fa-dna", "color_code": "#3B82F6"},
+        {"name": "Mathematik", "description": "Studie der Zahlen und Strukturen", "icon": "fa-square-root-alt", "color_code": "#3B82F6"}
+    ]
+    
+    # Unterkategorien für Technologie
+    tech_subcategories = [
+        {"name": "Software", "description": "Computerprogramme und Anwendungen", "icon": "fa-code", "color_code": "#059669"},
+        {"name": "Hardware", "description": "Physische Komponenten der Technik", "icon": "fa-microchip", "color_code": "#059669"},
+        {"name": "Internet", "description": "Globales Netzwerk und Web", "icon": "fa-globe", "color_code": "#059669"}
+    ]
+    
+    # Unterkategorien für Künste
+    arts_subcategories = [
+        {"name": "Musik", "description": "Klangkunst", "icon": "fa-music", "color_code": "#D97706"},
+        {"name": "Literatur", "description": "Geschriebene Kunst", "icon": "fa-book", "color_code": "#D97706"},
+        {"name": "Bildende Kunst", "description": "Visuelle Kunst", "icon": "fa-paint-brush", "color_code": "#D97706"}
+    ]
+    
+    # Unterkategorien für Psychologie
+    psychology_subcategories = [
+        {"name": "Kognition", "description": "Gedächtnisprozesse und Denken", "icon": "fa-brain", "color_code": "#DC2626"},
+        {"name": "Emotionen", "description": "Gefühle und emotionale Prozesse", "icon": "fa-heart", "color_code": "#DC2626"},
+        {"name": "Verhalten", "description": "Beobachtbares Verhalten und Reaktionen", "icon": "fa-user", "color_code": "#DC2626"}
+    ]
+    
+    # Alle Unterkategorien zu ihren Hauptkategorien hinzufügen
+    for subcat_data in philosophy_subcategories:
+        subcat = Category(**subcat_data)
+        subcat.parent_id = category_map["Philosophie"].id
+        db.session.add(subcat)
+    
+    for subcat_data in science_subcategories:
+        subcat = Category(**subcat_data)
+        subcat.parent_id = category_map["Wissenschaft"].id
+        db.session.add(subcat)
+    
+    for subcat_data in tech_subcategories:
+        subcat = Category(**subcat_data)
+        subcat.parent_id = category_map["Technologie"].id
+        db.session.add(subcat)
+    
+    for subcat_data in arts_subcategories:
+        subcat = Category(**subcat_data)
+        subcat.parent_id = category_map["Künste"].id
+        db.session.add(subcat)
+    
+    for subcat_data in psychology_subcategories:
+        subcat = Category(**subcat_data)
+        subcat.parent_id = category_map["Psychologie"].id
+        db.session.add(subcat)
     
     db.session.commit()
-    print(f"{len(categories)} Kategorien wurden erstellt.")
+    print(f"{len(main_categories)} Hauptkategorien und {len(philosophy_subcategories + science_subcategories + tech_subcategories + arts_subcategories + psychology_subcategories)} Unterkategorien wurden erstellt.")
 
 def create_sample_mindmap():
     """Erstellt eine Beispiel-Mindmap mit Knoten und Beziehungen"""

migrations/versions/add_mindmap_shares_table.py

@@ -0,0 +1,38 @@
+"""add mindmap shares table
+
+Revision ID: add_mindmap_shares
+Revises: add_missing_user_fields
+Create Date: 2025-05-10 23:20:00.000000
+
+"""
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import sqlite
+
+# revision identifiers, used by Alembic.
+revision = 'add_mindmap_shares'
+down_revision = 'add_missing_user_fields'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # Erstelle PermissionType Enum
+    op.create_table('mindmap_share',
+        sa.Column('id', sa.Integer(), nullable=False),
+        sa.Column('mindmap_id', sa.Integer(), nullable=False),
+        sa.Column('shared_by_id', sa.Integer(), nullable=False),
+        sa.Column('shared_with_id', sa.Integer(), nullable=False),
+        sa.Column('permission_type', sa.String(20), nullable=False),
+        sa.Column('created_at', sa.DateTime(), nullable=True),
+        sa.Column('last_accessed', sa.DateTime(), nullable=True),
+        sa.ForeignKeyConstraint(['mindmap_id'], ['user_mindmap.id'], ),
+        sa.ForeignKeyConstraint(['shared_by_id'], ['user.id'], ),
+        sa.ForeignKeyConstraint(['shared_with_id'], ['user.id'], ),
+        sa.PrimaryKeyConstraint('id'),
+        sa.UniqueConstraint('mindmap_id', 'shared_with_id', name='unique_mindmap_share')
+    )
+
+
+def downgrade():
+    op.drop_table('mindmap_share')

migrations/versions/add_missing_user_fields.py

@@ -0,0 +1,40 @@
+"""Add missing user fields
+
+Revision ID: 5a23f8c6db37
+Revises: d4406f5b12f7
+Create Date: 2025-05-02 10:45:00.000000
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '5a23f8c6db37'
+down_revision = 'd4406f5b12f7'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.batch_alter_table('user', schema=None) as batch_op:
+        batch_op.add_column(sa.Column('bio', sa.Text(), nullable=True))
+        batch_op.add_column(sa.Column('location', sa.String(length=100), nullable=True))
+        batch_op.add_column(sa.Column('website', sa.String(length=200), nullable=True))
+        batch_op.add_column(sa.Column('avatar', sa.String(length=200), nullable=True))
+        batch_op.add_column(sa.Column('last_login', sa.DateTime(), nullable=True))
+
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.batch_alter_table('user', schema=None) as batch_op:
+        batch_op.drop_column('last_login')
+        batch_op.drop_column('avatar')
+        batch_op.drop_column('website')
+        batch_op.drop_column('location')
+        batch_op.drop_column('bio')
+
+    # ### end Alembic commands ### 

models.py

@@ -53,11 +53,20 @@ class User(db.Model, UserMixin):
     created_at = db.Column(db.DateTime, default=datetime.utcnow)
     is_active = db.Column(db.Boolean, default=True)
     role = db.Column(db.String(20), default="user")  # 'user', 'admin', 'moderator'
+    bio = db.Column(db.Text, nullable=True)  # Profil-Bio
+    location = db.Column(db.String(100), nullable=True)  # Standort
+    website = db.Column(db.String(200), nullable=True)  # Website
+    avatar = db.Column(db.String(200), nullable=True)  # Profilbild-URL
+    last_login = db.Column(db.DateTime, nullable=True)  # Letzter Login
     
     # Relationships
     threads = db.relationship('Thread', backref='creator', lazy=True)
     messages = db.relationship('Message', backref='author', lazy=True)
     projects = db.relationship('Project', backref='owner', lazy=True)
+    mindmaps = db.relationship('UserMindmap', backref='user', lazy=True)
+    thoughts = db.relationship('Thought', backref='author', lazy=True)
+    bookmarked_thoughts = db.relationship('Thought', secondary=user_thought_bookmark, 
+                                        lazy='dynamic', backref=db.backref('bookmarked_by', lazy='dynamic'))
     
     def __repr__(self):
         return f'<User {self.username}>'
@@ -67,6 +76,14 @@ class User(db.Model, UserMixin):
         
     def check_password(self, password):
         return check_password_hash(self.password, password)
+        
+    @property
+    def is_admin(self):
+        return self.role == 'admin'
+
+    @is_admin.setter
+    def is_admin(self, value):
+        self.role = 'admin' if value else 'user'
 
 class Category(db.Model):
     """Wissenschaftliche Kategorien für die Gliederung der öffentlichen Mindmap"""
@@ -305,4 +322,70 @@ class Document(db.Model):
     file_size = db.Column(db.Integer, nullable=True)
     
     def __repr__(self):
-        return f'<Document {self.title}>' 
+        return f'<Document {self.title}>'
+
+# Forum-Kategorie-Modell - entspricht den Hauptknotenpunkten der Mindmap
+class ForumCategory(db.Model):
+    id = db.Column(db.Integer, primary_key=True)
+    node_id = db.Column(db.Integer, db.ForeignKey('mind_map_node.id'), nullable=False)
+    title = db.Column(db.String(200), nullable=False)
+    description = db.Column(db.Text)
+    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+    is_active = db.Column(db.Boolean, default=True)
+    
+    # Beziehungen
+    node = db.relationship('MindMapNode', backref='forum_category')
+    posts = db.relationship('ForumPost', backref='category', lazy=True, cascade="all, delete-orphan")
+    
+    def __repr__(self):
+        return f'<ForumCategory {self.title}>'
+
+# Forum-Beitrag-Modell
+class ForumPost(db.Model):
+    id = db.Column(db.Integer, primary_key=True)
+    title = db.Column(db.String(200), nullable=False)
+    content = db.Column(db.Text, nullable=False)
+    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+    updated_at = db.Column(db.DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
+    user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
+    category_id = db.Column(db.Integer, db.ForeignKey('forum_category.id'), nullable=False)
+    parent_id = db.Column(db.Integer, db.ForeignKey('forum_post.id'), nullable=True)
+    is_pinned = db.Column(db.Boolean, default=False)
+    is_locked = db.Column(db.Boolean, default=False)
+    view_count = db.Column(db.Integer, default=0)
+    
+    # Beziehungen
+    author = db.relationship('User', backref='forum_posts')
+    replies = db.relationship('ForumPost', backref=db.backref('parent', remote_side=[id]), lazy=True)
+    
+    def __repr__(self):
+        return f'<ForumPost {self.title}>'
+
+# Berechtigungstypen für Mindmap-Freigaben
+class PermissionType(Enum):
+    READ = "Nur-Lesen"
+    EDIT = "Bearbeiten"
+    ADMIN = "Administrator"
+
+# Freigabemodell für Mindmaps
+class MindmapShare(db.Model):
+    """Speichert Informationen über freigegebene Mindmaps und Berechtigungen"""
+    id = db.Column(db.Integer, primary_key=True)
+    mindmap_id = db.Column(db.Integer, db.ForeignKey('user_mindmap.id'), nullable=False)
+    shared_by_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
+    shared_with_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
+    permission_type = db.Column(db.Enum(PermissionType), nullable=False, default=PermissionType.READ)
+    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+    last_accessed = db.Column(db.DateTime, nullable=True)
+    
+    # Beziehungen
+    mindmap = db.relationship('UserMindmap', backref=db.backref('shares', lazy='dynamic'))
+    shared_by = db.relationship('User', foreign_keys=[shared_by_id], backref=db.backref('shared_mindmaps', lazy='dynamic'))
+    shared_with = db.relationship('User', foreign_keys=[shared_with_id], backref=db.backref('accessible_mindmaps', lazy='dynamic'))
+    
+    __table_args__ = (
+        db.UniqueConstraint('mindmap_id', 'shared_with_id', name='unique_mindmap_share'),
+    )
+    
+    def __repr__(self):
+        return f'<MindmapShare: {self.mindmap_id} - {self.shared_with_id} - {self.permission_type.name}>'

start.sh

@@ -0,0 +1,53 @@
+#!/usr/bin/env powershell
+# Windows PowerShell-Version des Start-Skripts
+# Datum: 01.05.2025
+
+# Docker-Status prüfen
+Write-Host "Prüfe Docker-Status..." -ForegroundColor Cyan
+try {
+    $status = docker ps -q
+    if ($LASTEXITCODE -ne 0) {
+        Write-Host "Docker ist nicht gestartet. Bitte starten Sie Docker Desktop." -ForegroundColor Red
+        exit 1
+    }
+} catch {
+    Write-Host "Docker ist nicht verfügbar. Bitte installieren Sie Docker Desktop und starten Sie es." -ForegroundColor Red
+    Write-Host $_.Exception.Message
+    exit 1
+}
+
+# Alte Container stoppen und entfernen
+$containerExists = docker ps -a --filter "name=systades_app" -q
+if ($containerExists) {
+    Write-Host "Stoppe und entferne alten Container..." -ForegroundColor Yellow
+    docker rm -f systades_app
+}
+
+# Alte Images löschen
+Write-Host "Entferne altes Image..." -ForegroundColor Yellow
+docker rmi -f systades_app:latest
+
+# Stelle sicher, dass das Datenbankverzeichnis existiert
+if (-not (Test-Path "database")) {
+    New-Item -Path "database" -ItemType Directory -Force
+}
+
+# Docker-Compose Setup neu bauen
+Write-Host "Baue Container neu..." -ForegroundColor Green
+docker-compose build --no-cache
+
+# Docker-Compose neu starten
+Write-Host "Starte Container..." -ForegroundColor Green
+docker-compose up -d --force-recreate
+
+# Warte kurz und prüfe, ob der Container läuft
+Write-Host "Prüfe Container-Status..." -ForegroundColor Cyan
+Start-Sleep -Seconds 3
+docker ps | Select-String "systades_app"
+
+# Ausgabe
+Write-Host "`nSystemstatus:" -ForegroundColor Cyan
+Write-Host "----------------------------------------"
+Write-Host "Systades-Anwendung ist jetzt unter http://localhost:5000 erreichbar." -ForegroundColor Green
+Write-Host "Container-Logs können mit 'docker logs -f systades_app' angezeigt werden." -ForegroundColor Green
+Write-Host "----------------------------------------" 

static/541AABD7-4E37-44ED-B491-1459C8C19699.PNG

@@ -0,0 +1 @@
+ 

static/css/assistant.css

@@ -1,6 +1,9 @@
 /* ChatGPT Assistent Styles - Verbesserte Version */
 #chatgpt-assistant {
     font-family: 'Inter', sans-serif;
+    bottom: 5.5rem;
+    z-index: 100;
+    max-height: 85vh;
 }
 
 #assistant-chat {
@@ -10,6 +13,15 @@
     border-radius: 0.75rem;
     overflow: hidden;
     max-width: calc(100vw - 2rem);
+    max-height: 80vh !important;
+}
+
+#assistant-history {
+    max-height: calc(80vh - 150px);
+    overflow-y: auto;
+    scrollbar-width: thin;
+    scrollbar-color: rgba(156, 163, 175, 0.5) transparent;
+    padding-bottom: 2rem; /* Zusätzlicher Abstand unten */
 }
 
 #assistant-toggle {
@@ -22,11 +34,6 @@
     transform: scale(1.1) rotate(10deg);
 }
 
-#assistant-history {
-    scrollbar-width: thin;
-    scrollbar-color: rgba(156, 163, 175, 0.5) transparent;
-}
-
 #assistant-history::-webkit-scrollbar {
     width: 6px;
 }
@@ -142,14 +149,21 @@
 .typing-indicator span {
     height: 8px;
     width: 8px;
-    background-color: #888;
     border-radius: 50%;
     display: inline-block;
     margin: 0 2px;
-    opacity: 0.4;
+    opacity: 0.6;
     animation: bounce 1.4s infinite ease-in-out;
 }
 
+body.dark .typing-indicator span {
+    background-color: rgba(255, 255, 255, 0.7);
+}
+
+body:not(.dark) .typing-indicator span {
+    background-color: rgba(107, 114, 128, 0.8);
+}
+
 .typing-indicator span:nth-child(1) { animation-delay: 0s; }
 .typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
 .typing-indicator span:nth-child(3) { animation-delay: 0.4s; }
@@ -173,11 +187,12 @@
 @media (max-width: 640px) {
     #assistant-chat {
         width: calc(100vw - 2rem) !important;
+        max-height: 65vh !important;
     }
     
     #chatgpt-assistant {
         right: 1rem;
-        bottom: 1rem;
+        bottom: 6rem;
     }
 }
 
@@ -200,4 +215,38 @@ main {
 
 footer {
     flex-shrink: 0;
+}
+
+/* Verbesserte Farbkontraste für Nachrichtenblasen */
+.user-message {
+    background-color: rgba(124, 58, 237, 0.1) !important;
+    color: #4B5563 !important;
+}
+
+body.dark .user-message {
+    background-color: rgba(124, 58, 237, 0.2) !important;
+    color: #F9FAFB !important;
+}
+
+.assistant-message {
+    background-color: #F3F4F6 !important;
+    color: #1F2937 !important;
+    border-left: 3px solid #8B5CF6;
+}
+
+body.dark .assistant-message {
+    background-color: rgba(31, 41, 55, 0.5) !important;
+    color: #F9FAFB !important;
+    border-left: 3px solid #8B5CF6;
+}
+
+/* Chat-Assistent-Position im Footer-Bereich anpassen */
+.chat-assistant {
+    max-height: 75vh;
+    bottom: 1.5rem;
+}
+
+.chat-assistant .chat-messages {
+    max-height: calc(75vh - 180px);
+    overflow-y: auto;
 } 

static/css/base-styles.css

@@ -40,8 +40,8 @@
     --light-bg: #f9fafb;
     --light-text: #1e293b;
     --light-heading: #0f172a;
-    --light-primary: #3b82f6;
+    --light-primary: #7c3aed;
-    --light-primary-hover: #4f46e5;
+    --light-primary-hover: #6d28d9;
     --light-secondary: #6b7280;
     --light-border: #e5e7eb;
     --light-card-bg: rgba(255, 255, 255, 0.92);
@@ -68,18 +68,37 @@ body {
     line-height: 1.5;
 }
 
-/* Dark Mode */
+/* Strikte Trennung: Dark Mode */
-html.dark body {
+html.dark body,
+body.dark {
     background-color: var(--bg-primary-dark);
     color: var(--text-primary-dark);
 }
 
-/* Light Mode */
+/* Strikte Trennung: Light Mode */
+html:not(.dark) body,
 body:not(.dark) {
     background-color: var(--light-bg);
     color: var(--light-text);
 }
 
+/* Verbesserte Trennung: Container und Karten */
+body.dark .card,
+body.dark .glass-card,
+body.dark .panel {
+    background-color: var(--bg-secondary-dark);
+    border-color: var(--border-dark);
+    color: var(--text-primary-dark);
+}
+
+body:not(.dark) .card,
+body:not(.dark) .glass-card,
+body:not(.dark) .panel {
+    background-color: var(--light-card-bg);
+    border-color: var(--light-border);
+    color: var(--light-text);
+}
+
 /* Typography */
 h1, h2, h3, h4, h5, h6 {
     font-weight: 600;
@@ -388,7 +407,7 @@ html.dark ::-webkit-scrollbar-thumb:hover {
     }
     
     .section-heading {
-        font-size: 1.5rem;
+        font-size: 1.75rem;
     }
 }
 
@@ -455,22 +474,60 @@ body:not(.dark) a:hover {
 }
 
 /* Light Mode Buttons */
+body:not(.dark) button:not(.toggle):not(.plain-btn) {
+    color: white !important;
+    text-shadow: 0 1px 1px rgba(0, 0, 0, 0.2);
+}
+
 body:not(.dark) .btn,
-body:not(.dark) button:not(.toggle) {
+body:not(.dark) .btn-primary,
-    background-color: var(--light-primary);
+body:not(.dark) .btn-secondary,
-    color: white;
+body:not(.dark) .btn-success,
-    border: none;
+body:not(.dark) .btn-danger,
-    box-shadow: var(--light-shadow);
+body:not(.dark) .btn-warning,
-    border-radius: 0.375rem;
+body:not(.dark) .btn-info {
-    padding: 0.5rem 1rem;
+    color: white !important;
-    transition: all 0.3s ease;
 }
 
 body:not(.dark) .btn:hover,
 body:not(.dark) button:not(.toggle):hover {
-    background-color: var(--light-primary-hover);
+    background: linear-gradient(135deg, #7c3aed, #6d28d9);
-    transform: translateY(-2px);
+    transform: translateY(-1px);
-    box-shadow: 0 6px 10px rgba(0, 0, 0, 0.1);
+    box-shadow: 0 4px 12px rgba(109, 40, 217, 0.3);
+}
+
+/* Dark/Light Mode Switch Button */
+.theme-toggle {
+    position: relative;
+    width: 48px;
+    height: 24px;
+    background: linear-gradient(to right, #7c3aed, #3b82f6);
+    border-radius: 24px;
+    padding: 2px;
+    cursor: pointer;
+    transition: all 0.3s ease;
+    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
+}
+
+.theme-toggle::after {
+    content: '';
+    position: absolute;
+    width: 20px;
+    height: 20px;
+    background: white;
+    border-radius: 50%;
+    top: 2px;
+    left: 2px;
+    transition: all 0.3s ease;
+    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
+}
+
+.theme-toggle.dark::after {
+    transform: translateX(24px);
+}
+
+.theme-toggle:hover::after {
+    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
 }
 
 /* Light Mode Cards und Panels */
@@ -523,4 +580,489 @@ body:not(.dark) .navbar {
     background-color: var(--light-navbar-bg);
     box-shadow: var(--light-shadow);
     border-bottom: 1px solid var(--light-border);
+}
+
+/* Erweiterte Light-Mode-spezifische Stile */
+body:not(.dark) .glass-effect {
+    background-color: rgba(255, 255, 255, 0.7);
+    backdrop-filter: blur(12px);
+    -webkit-backdrop-filter: blur(12px);
+    border: 1px solid rgba(209, 213, 219, 0.3);
+}
+
+body:not(.dark) .card {
+    background-color: rgba(255, 255, 255, 0.85);
+    border: 1px solid var(--light-border);
+    box-shadow: var(--light-shadow);
+    transition: all 0.3s ease;
+}
+
+body:not(.dark) .card:hover {
+    box-shadow: 0 8px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
+    transform: translateY(-2px);
+}
+
+/* Light Mode Buttons mit verbesserter Lesbarkeit */
+body:not(.dark) .btn-primary {
+    background: linear-gradient(135deg, #6d28d9, #5b21b6);
+    color: white;
+    border: none;
+    transition: all 0.2s ease;
+    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.4);
+    font-weight: 600;
+    letter-spacing: 0.02em;
+    box-shadow: 0 2px 4px rgba(91, 33, 182, 0.3);
+    border-radius: 8px;
+}
+
+body:not(.dark) .btn-primary:hover {
+    background: linear-gradient(135deg, #7c3aed, #6d28d9);
+    box-shadow: 0 4px 12px rgba(109, 40, 217, 0.4), 0 2px 4px rgba(0, 0, 0, 0.1);
+    transform: translateY(-1px);
+}
+
+body:not(.dark) .btn-secondary {
+    background: linear-gradient(135deg, #ffffff, #f9fafb);
+    color: #1f2937;
+    border: 2px solid #e5e7eb;
+    font-weight: 600;
+    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.08);
+    border-radius: 8px;
+}
+
+body:not(.dark) .btn-secondary:hover {
+    background: linear-gradient(135deg, #f9fafb, #f3f4f6);
+    border-color: #d1d5db;
+    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.12);
+    transform: translateY(-1px);
+}
+
+body:not(.dark) .btn-outline {
+    background-color: transparent;
+    color: var(--light-primary);
+    border: 1px solid var(--light-primary);
+}
+
+body:not(.dark) .btn-outline:hover {
+    background-color: rgba(124, 58, 237, 0.05);
+}
+
+/* Light Mode Formulare */
+body:not(.dark) input, 
+body:not(.dark) select, 
+body:not(.dark) textarea {
+    background-color: white;
+    border: 1px solid #d1d5db;
+    color: #1f2937;
+}
+
+body:not(.dark) input:focus, 
+body:not(.dark) select:focus, 
+body:not(.dark) textarea:focus {
+    border-color: var(--light-primary);
+    box-shadow: 0 0 0 2px rgba(124, 58, 237, 0.2);
+}
+
+/* Light Mode Navigation */
+body:not(.dark) .sidebar {
+    background-color: white;
+    border-right: 1px solid #e5e7eb;
+}
+
+body:not(.dark) .sidebar-link {
+    color: #4b5563;
+}
+
+body:not(.dark) .sidebar-link:hover {
+    background-color: #f3f4f6;
+    color: var(--light-primary);
+}
+
+body:not(.dark) .sidebar-link.active {
+    background-color: rgba(124, 58, 237, 0.08);
+    color: var(--light-primary);
+    font-weight: 500;
+}
+
+/* Light Mode Tabellen */
+body:not(.dark) table {
+    border-color: #e5e7eb;
+}
+
+body:not(.dark) th {
+    background-color: #f9fafb;
+    color: #111827;
+    font-weight: 600;
+}
+
+body:not(.dark) tr:nth-child(even) {
+    background-color: #f9fafb;
+}
+
+body:not(.dark) tr:hover {
+    background-color: #f3f4f6;
+}
+
+/* Light Mode Icons */
+body:not(.dark) .icon {
+    color: #6b7280;
+}
+
+body:not(.dark) .icon-primary {
+    color: var(--light-primary);
+}
+
+/* Light Mode Alerts/Benachrichtigungen */
+body:not(.dark) .alert-info {
+    background-color: #eff6ff;
+    border-left: 4px solid #3b82f6;
+    color: #1e40af;
+}
+
+body:not(.dark) .alert-success {
+    background-color: #ecfdf5;
+    border-left: 4px solid #10b981;
+    color: #065f46;
+}
+
+body:not(.dark) .alert-warning {
+    background-color: #fffbeb;
+    border-left: 4px solid #f59e0b;
+    color: #92400e;
+}
+
+body:not(.dark) .alert-error {
+    background-color: #fef2f2;
+    border-left: 4px solid #ef4444;
+    color: #b91c1c;
+}
+
+/* Light Mode Badge */
+body:not(.dark) .badge {
+    background-color: #e5e7eb;
+    color: #374151;
+}
+
+body:not(.dark) .badge-primary {
+    background-color: rgba(124, 58, 237, 0.1);
+    color: var(--light-primary);
+}
+
+/* Light Mode Mindmap spezifisch */
+body:not(.dark) #cy {
+    background-color: rgba(255, 255, 255, 0.7);
+    border: 1px solid #e5e7eb;
+}
+
+body:not(.dark) .node {
+    border: 2px solid white;
+    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
+}
+
+body:not(.dark) .node:hover,
+body:not(.dark) .node.selected {
+    box-shadow: 0 0 0 2px rgba(124, 58, 237, 0.5), 0 4px 8px rgba(0, 0, 0, 0.1);
+}
+
+body:not(.dark) .edge {
+    opacity: 0.7;
+}
+
+body:not(.dark) .edge:hover,
+body:not(.dark) .edge.selected {
+    opacity: 1;
+}
+
+/* Footer im Light Mode */
+body:not(.dark) footer {
+    background-color: rgba(249, 250, 251, 0.7);
+    border-top: 1px solid #e5e7eb;
+}
+
+/* Alpine.js Transitions im Light Mode */
+body:not(.dark) [x-cloak] {
+    display: none !important;
+}
+
+/* Suchfeldstyling im Light Mode */
+body:not(.dark) .search-container input {
+    background-color: white;
+    border: 1px solid #d1d5db;
+    color: #1f2937;
+}
+
+body:not(.dark) .search-container input:focus {
+    border-color: var(--light-primary);
+    box-shadow: 0 0 0 2px rgba(124, 58, 237, 0.2);
+}
+
+body:not(.dark) .search-results {
+    background-color: white;
+    border: 1px solid #e5e7eb;
+    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
+}
+
+body:not(.dark) .search-result-item:hover {
+    background-color: #f3f4f6;
+}
+
+/* Profile und Benutzermenü im Light Mode */
+body:not(.dark) .avatar {
+    border: 2px solid white;
+    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
+}
+
+body:not(.dark) .user-dropdown {
+    background-color: white;
+    border: 1px solid #e5e7eb;
+    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
+}
+
+body:not(.dark) .user-dropdown-item:hover {
+    background-color: #f3f4f6;
+}
+
+/* Medienabfragen für Responsivität */
+@media (max-width: 640px) {
+  /* Optimierungen für Smartphones */
+  body {
+    padding-left: 0;
+    padding-right: 0;
+  }
+  
+  .container {
+    padding-left: 1rem;
+    padding-right: 1rem;
+  }
+  
+  .hero-heading {
+    font-size: 2rem;
+  }
+  
+  .section-heading {
+    font-size: 1.75rem;
+  }
+  
+  .card, .panel, .glass-card {
+    padding: 1rem;
+    border-radius: 10px;
+  }
+  
+  .navbar {
+    padding: 0.75rem 1rem;
+  }
+  
+  /* Optimierte Touch-Ziele für mobile Geräte */
+  button, .btn, .nav-link, .menu-item {
+    min-height: 44px;
+    min-width: 44px;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+  }
+  
+  /* Verbesserte Lesbarkeit auf kleinen Bildschirmen */
+  p, li, input, textarea, button, .text-sm {
+    font-size: 1rem;
+    line-height: 1.5;
+  }
+  
+  /* Anpassungen für Tabellen auf kleinen Bildschirmen */
+  table {
+    display: block;
+    overflow-x: auto;
+    white-space: nowrap;
+  }
+  
+  /* Optimierte Formulare */
+  input, select, textarea {
+    font-size: 16px; /* Verhindert iOS-Zoom bei Fokus */
+    width: 100%;
+  }
+  
+  /* Verbesserter Abstand für Touch-Targets */
+  nav a, nav button, .menu-item {
+    margin: 0.25rem 0;
+    padding: 0.75rem;
+  }
+}
+
+@media (min-width: 641px) and (max-width: 1024px) {
+  /* Optimierungen für Tablets */
+  .container {
+    padding-left: 1.5rem;
+    padding-right: 1.5rem;
+  }
+  
+  /* Zweispaltige Layouts für mittlere Bildschirme */
+  .grid-cols-1 {
+    display: grid;
+    grid-template-columns: repeat(2, 1fr);
+    gap: 1.5rem;
+  }
+  
+  /* Optimierte Navigationsleiste */
+  .navbar {
+    padding: 0.75rem 1.5rem;
+  }
+}
+
+@media (min-width: 1025px) {
+  /* Optimierungen für Desktop */
+  .container {
+    padding-left: 2rem;
+    padding-right: 2rem;
+    max-width: 1280px;
+    margin: 0 auto;
+  }
+  
+  /* Mehrspaltige Layouts für große Bildschirme */
+  .grid-cols-1 {
+    display: grid;
+    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
+    gap: 2rem;
+  }
+  
+  /* Hover-Effekte nur auf Desktop-Geräten */
+  .card:hover, .panel:hover, .glass-card:hover {
+    transform: translateY(-5px);
+    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.15), 0 10px 10px -5px rgba(0, 0, 0, 0.1);
+    transition: transform 0.3s ease, box-shadow 0.3s ease;
+  }
+  
+  /* Desktop-spezifische Animationen */
+  .animate-hover {
+    transition: all 0.3s ease;
+  }
+  
+  .animate-hover:hover {
+    transform: translateY(-3px);
+    box-shadow: var(--shadow-lg);
+  }
+}
+
+/* Responsive design improvements */
+.responsive-grid {
+  display: grid;
+  gap: 1rem;
+  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
+}
+
+.responsive-flex {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 1rem;
+}
+
+.responsive-flex > * {
+  flex: 1 1 280px;
+}
+
+/* Accessibility improvements */
+.focus-visible:focus-visible {
+  outline: 2px solid var(--accent-primary-light);
+  outline-offset: 2px;
+}
+
+body.dark .focus-visible:focus-visible {
+  outline: 2px solid var(--accent-primary-dark);
+}
+
+/* Print styles */
+@media print {
+  body {
+    background: white !important;
+    color: black !important;
+  }
+  
+  nav, footer, button, .no-print {
+    display: none !important;
+  }
+  
+  main, article, .card, .panel, .container {
+    width: 100% !important;
+    border: none !important;
+    box-shadow: none !important;
+    color: black !important;
+    background: white !important;
+  }
+  
+  a {
+    color: black !important;
+    text-decoration: underline !important;
+  }
+  
+  a::after {
+    content: " (" attr(href) ")";
+    font-size: 0.8em;
+    font-weight: normal;
+  }
+  
+  h1, h2, h3, h4, h5, h6 {
+    page-break-after: avoid;
+    page-break-inside: avoid;
+  }
+  
+  img {
+    page-break-inside: avoid;
+    max-width: 100% !important;
+  }
+  
+  table {
+    page-break-inside: avoid;
+  }
+  
+  @page {
+    margin: 2cm;
+  }
+}
+
+/* Light Mode KI-Chatfenster */
+body:not(.dark) .chat-container {
+  background-color: rgba(255, 255, 255, 0.95);
+  border: 1px solid rgba(0, 0, 0, 0.1);
+  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
+  color: #1e293b;
+}
+
+body:not(.dark) .chat-message-ai {
+  background-color: rgba(124, 58, 237, 0.1);
+  border: 1px solid rgba(124, 58, 237, 0.2);
+}
+
+body:not(.dark) .chat-message-user {
+  background-color: rgba(59, 130, 246, 0.1);
+  border: 1px solid rgba(59, 130, 246, 0.2);
+}
+
+/* Anpassung der Chatfenster-Größe */
+.chat-assistant {
+  max-height: 85vh; /* Vergrößert von 80vh */
+  bottom: 1rem; /* Etwas höher positionieren */
+}
+
+.chat-assistant .chat-messages {
+  max-height: calc(85vh - 180px); /* Angepasst für größeres Fenster */
+  overflow-y: auto;
+  padding-bottom: 2rem; /* Zusätzlicher Abstand um Abschneiden zu vermeiden */
+}
+
+/* Verbesserungen für das Mobilmenü */
+@media (max-width: 768px) {
+  .mobile-menu-container {
+    max-height: 85vh;
+    overflow-y: auto;
+  }
+  
+  #chatgpt-assistant {
+    bottom: 4.5rem !important;
+  }
+  
+  .chat-assistant {
+    max-height: 70vh !important;
+  }
+  
+  .chat-assistant .chat-messages {
+    max-height: calc(70vh - 160px) !important;
+  }
 } 

static/css/mindmap.css

@@ -0,0 +1,437 @@
+/* Mindmap Container Styles */
+.mindmap-container {
+    position: relative;
+    width: 100%;
+    height: 100%;
+    min-height: 600px;
+    background: var(--bg-primary);
+    border-radius: 12px;
+    overflow: hidden;
+}
+
+/* Cytoscape Container für die Hauptmindmap */
+#cy {
+    width: 100%;
+    height: 100%;
+    background: transparent;
+    position: absolute;
+    top: 0;
+    left: 0;
+    z-index: 1;
+}
+
+/* Subpage Styles - Identisches Design wie Hauptmindmap */
+.mindmap-subpage {
+    position: absolute;
+    top: 0;
+    left: 0;
+    width: 100%;
+    height: 100%;
+    background: var(--bg-primary);
+    display: flex;
+    flex-direction: column;
+    z-index: 10;
+    transition: opacity 0.3s ease, transform 0.3s ease;
+    opacity: 1;
+    transform: translateY(0);
+}
+
+/* Subpage Header */
+.subpage-header {
+    display: flex;
+    align-items: center;
+    padding: 16px;
+    background: var(--bg-secondary);
+    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
+    z-index: 2;
+}
+
+.dark .subpage-header {
+    background: rgba(30, 41, 59, 0.8);
+    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
+}
+
+/* Zurück-Button */
+.back-button {
+    background: rgba(255, 255, 255, 0.1);
+    border: none;
+    color: white;
+    width: 40px;
+    height: 40px;
+    border-radius: 50%;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    cursor: pointer;
+    transition: all 0.2s ease;
+    margin-right: 12px;
+}
+
+.back-button:hover {
+    background: rgba(255, 255, 255, 0.2);
+    transform: translateY(-2px);
+}
+
+/* Subpage Titel */
+.subpage-title {
+    font-size: 1.5rem;
+    font-weight: 600;
+    color: white;
+    margin: 0;
+    background: linear-gradient(90deg, #60a5fa, #8b5cf6);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+}
+
+/* Subpage Cytoscape Container */
+.subpage-cy-container {
+    position: relative;
+    flex: 1;
+    width: 100%;
+    height: calc(100% - 72px);
+    overflow: hidden;
+    z-index: 1;
+}
+
+/* Toolbar für Zoom-Kontrollen */
+.mindmap-toolbar {
+    position: absolute;
+    top: 20px;
+    left: 50%;
+    transform: translateX(-50%);
+    display: flex;
+    gap: 8px;
+    padding: 8px;
+    background: rgba(30, 41, 59, 0.8);
+    border-radius: 8px;
+    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
+    z-index: 20;
+    backdrop-filter: blur(8px);
+    border: 1px solid rgba(255, 255, 255, 0.1);
+}
+
+.mindmap-toolbar button {
+    width: 40px;
+    height: 40px;
+    border: none;
+    background: rgba(255, 255, 255, 0.1);
+    color: white;
+    border-radius: 6px;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    cursor: pointer;
+    transition: all 0.2s ease;
+}
+
+.mindmap-toolbar button:hover {
+    background: rgba(139, 92, 246, 0.5);
+    transform: translateY(-2px);
+}
+
+.mindmap-toolbar button i {
+    font-size: 16px;
+}
+
+/* Mindmap Header */
+.mindmap-header {
+    position: absolute;
+    top: 0;
+    left: 0;
+    right: 0;
+    padding: 1.5rem;
+    background: rgba(15, 23, 42, 0.8);
+    backdrop-filter: blur(10px);
+    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
+    z-index: 10;
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+}
+
+/* Dark Mode spezifische Stile */
+.dark .mindmap-subpage {
+    background: linear-gradient(135deg, #0f172a 0%, #0c1221 100%);
+}
+
+/* Fix für Zoom-Buttons */
+body.dark .mindmap-toolbar button {
+    background: rgba(255, 255, 255, 0.1);
+    color: white;
+}
+
+body:not(.dark) .mindmap-toolbar button {
+    background: rgba(30, 41, 59, 0.2);
+    color: #1e293b;
+}
+
+/* Kontext-Menü-Anpassungen */
+.context-menu {
+    z-index: 1000;
+}
+
+/* Export Group Styles */
+.export-group {
+    position: relative;
+}
+
+.export-options {
+    position: absolute;
+    top: 100%;
+    right: 0;
+    margin-top: 8px;
+    padding: 8px;
+    background: var(--bg-secondary);
+    border-radius: 8px;
+    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
+    display: none;
+    flex-direction: column;
+    gap: 4px;
+    min-width: 160px;
+}
+
+.dark .export-options {
+    background: rgba(30, 41, 59, 0.9);
+    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
+    border: 1px solid rgba(255, 255, 255, 0.1);
+}
+
+.export-group:hover .export-options {
+    display: flex;
+}
+
+.export-options button {
+    width: 100%;
+    height: auto;
+    padding: 8px 12px;
+    justify-content: flex-start;
+    font-size: 14px;
+    border-radius: 6px;
+}
+
+/* Context Menu Styles */
+.mindmap-context-menu {
+    position: fixed;
+    background: var(--bg-secondary);
+    border-radius: 8px;
+    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
+    padding: 8px;
+    z-index: 1000;
+    min-width: 180px;
+}
+
+.dark .mindmap-context-menu {
+    background: rgba(30, 41, 59, 0.9);
+    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
+    border: 1px solid rgba(255, 255, 255, 0.1);
+}
+
+.mindmap-context-menu button {
+    display: flex;
+    align-items: center;
+    width: 100%;
+    padding: 8px 12px;
+    border: none;
+    background: transparent;
+    color: var(--text-primary);
+    cursor: pointer;
+    font-size: 14px;
+    border-radius: 6px;
+    transition: all 0.2s ease;
+}
+
+.mindmap-context-menu button:hover {
+    background: var(--accent-primary);
+    color: white;
+}
+
+.mindmap-context-menu button i {
+    margin-right: 8px;
+    width: 16px;
+}
+
+/* Node Styles */
+.mindmap-node {
+    background-color: var(--bg-secondary);
+    border: 2px solid var(--accent-primary);
+    border-radius: 8px;
+    padding: 8px 12px;
+    transition: all 0.3s ease;
+}
+
+.mindmap-node:hover {
+    box-shadow: 0 0 0 2px var(--accent-primary);
+    transform: scale(1.05);
+}
+
+.mindmap-node.selected {
+    border-color: var(--accent-secondary);
+    box-shadow: 0 0 0 3px var(--accent-secondary);
+}
+
+/* Edge Styles */
+.mindmap-edge {
+    width: 2px;
+    transition: all 0.3s ease;
+}
+
+.dark .mindmap-edge {
+    background-color: rgba(255, 255, 255, 0.2);
+}
+
+.mindmap-edge:hover {
+    width: 3px;
+    background-color: var(--accent-primary);
+}
+
+/* Animation Styles */
+@keyframes nodeAppear {
+    from {
+        opacity: 0;
+        transform: scale(0.8);
+    }
+    to {
+        opacity: 1;
+        transform: scale(1);
+    }
+}
+
+.mindmap-node-new {
+    animation: nodeAppear 0.3s ease forwards;
+}
+
+/* Responsive Styles */
+@media (max-width: 768px) {
+    .mindmap-toolbar {
+        flex-wrap: wrap;
+        width: calc(100% - 32px);
+        justify-content: center;
+    }
+
+    .export-options {
+        left: 0;
+        right: auto;
+    }
+}
+
+/* Loading State */
+.mindmap-loading {
+    position: absolute;
+    top: 50%;
+    left: 50%;
+    transform: translate(-50%, -50%);
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+    gap: 16px;
+}
+
+.mindmap-loading-spinner {
+    width: 40px;
+    height: 40px;
+    border: 4px solid var(--bg-secondary);
+    border-top-color: var(--accent-primary);
+    border-radius: 50%;
+    animation: spin 1s linear infinite;
+}
+
+@keyframes spin {
+    to {
+        transform: rotate(360deg);
+    }
+}
+
+/* Tooltip Styles */
+.mindmap-tooltip {
+    position: absolute;
+    background: var(--bg-secondary);
+    padding: 8px 12px;
+    border-radius: 6px;
+    font-size: 12px;
+    pointer-events: none;
+    z-index: 1000;
+    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
+    max-width: 200px;
+    white-space: nowrap;
+    overflow: hidden;
+    text-overflow: ellipsis;
+}
+
+.dark .mindmap-tooltip {
+    background: rgba(30, 41, 59, 0.9);
+    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
+}
+
+/* Kategorien-Panel */
+.categories-panel {
+    position: absolute;
+    top: 80px;
+    left: 20px;
+    width: 300px;
+    max-height: calc(100vh - 120px);
+    background: rgba(15, 23, 42, 0.95);
+    border-radius: 12px;
+    padding: 16px;
+    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
+    z-index: 1000;
+    backdrop-filter: blur(10px);
+    border: 1px solid rgba(255, 255, 255, 0.1);
+    transform: translateX(-320px);
+    transition: transform 0.3s ease-in-out;
+    overflow-y: auto;
+}
+
+.categories-panel.visible {
+    transform: translateX(0);
+}
+
+.categories-panel h3 {
+    color: white;
+    font-size: 1.2rem;
+    margin: 0 0 16px 0;
+    padding-bottom: 8px;
+    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
+}
+
+.category-list {
+    list-style: none;
+    padding: 0;
+    margin: 0;
+}
+
+.category-item {
+    display: flex;
+    align-items: center;
+    padding: 8px 12px;
+    margin: 4px 0;
+    border-radius: 6px;
+    cursor: pointer;
+    transition: all 0.2s ease;
+    color: white;
+}
+
+.category-item:hover {
+    background: rgba(255, 255, 255, 0.1);
+    transform: translateX(4px);
+}
+
+.category-color {
+    width: 12px;
+    height: 12px;
+    border-radius: 50%;
+    margin-right: 12px;
+    flex-shrink: 0;
+}
+
+.category-name {
+    flex-grow: 1;
+    font-size: 0.95rem;
+}
+
+.category-count {
+    background: rgba(255, 255, 255, 0.1);
+    padding: 2px 8px;
+    border-radius: 12px;
+    font-size: 0.8rem;
+    margin-left: 8px;
+}

static/img/default-avatar.svg

@@ -0,0 +1,11 @@
+<svg width="200" height="200" viewBox="0 0 200 200" fill="none" xmlns="http://www.w3.org/2000/svg">
+  <circle cx="100" cy="100" r="98" fill="url(#gradient)" stroke="#7C3AED" stroke-width="4"/>
+  <circle cx="100" cy="80" r="36" fill="white"/>
+  <path d="M100 140C77.9086 140 60 157.909 60 180H140C140 157.909 122.091 140 100 140Z" fill="white"/>
+  <defs>
+    <linearGradient id="gradient" x1="0" y1="0" x2="200" y2="200" gradientUnits="userSpaceOnUse">
+      <stop offset="0" stop-color="#8B5CF6"/>
+      <stop offset="1" stop-color="#3B82F6"/>
+    </linearGradient>
+  </defs>
+</svg> 

static/img/favicon-gen.py

@@ -1,25 +1,54 @@
 #!/usr/bin/env python3
-# -*- coding: utf-8 -*-
+"""
+Generate favicon.ico from SVG using cairosvg and PIL
+"""
 
 import os
+import io
+from cairosvg import svg2png
 from PIL import Image
-import cairosvg
 
-# Pfad zum SVG-Favicon
+# Verzeichnis dieses Skripts
-svg_path = os.path.join(os.path.dirname(os.path.realpath(__file__)), 'favicon.svg')
+CURRENT_DIR = os.path.dirname(os.path.abspath(__file__))
-# Ausgabepfad für das PNG
-png_path = os.path.join(os.path.dirname(os.path.realpath(__file__)), 'favicon.png')
-# Ausgabepfad für das ICO
-ico_path = os.path.join(os.path.dirname(os.path.realpath(__file__)), 'favicon.ico')
 
-# SVG zu PNG konvertieren
+def svg_to_ico(svg_path, ico_path, sizes=[16, 32, 48, 64, 128, 256]):
-cairosvg.svg2png(url=svg_path, write_to=png_path, output_width=512, output_height=512)
+    """Convert SVG to multi-size ICO file"""
+    img_io = io.BytesIO()
+    
+    # Höchste Auflösung für Zwischenspeicherung
+    max_size = max(sizes)
+    
+    # SVG in PNG konvertieren
+    with open(svg_path, 'rb') as svg_file:
+        svg_data = svg_file.read()
+        svg2png(bytestring=svg_data, write_to=img_io, output_width=max_size, output_height=max_size)
+    
+    # PNG in verschiedene Größen konvertieren
+    img = Image.open(img_io)
+    
+    # Alle Größen für das ICO-Format vorbereiten
+    img_list = []
+    for size in sizes:
+        resized_img = img.resize((size, size), Image.LANCZOS)
+        img_list.append(resized_img)
+    
+    # ICO-Datei speichern
+    img_list[0].save(
+        ico_path,
+        format='ICO',
+        sizes=[(img.width, img.height) for img in img_list],
+        append_images=img_list[1:]
+    )
+    print(f"Favicon {ico_path} wurde erstellt!")
 
-# PNG zu ICO konvertieren
+# Ursprüngliches Favicon konvertieren
-img = Image.open(png_path)
+svg_to_ico(
-img.save(ico_path, sizes=[(16, 16), (32, 32), (48, 48), (64, 64), (128, 128)])
+    os.path.join(CURRENT_DIR, 'favicon.svg'),
+    os.path.join(CURRENT_DIR, 'favicon.ico')
+)
 
-print(f"Favicon erfolgreich erstellt: {ico_path}")
+# Neues Neuron-Favicon konvertieren
-
+svg_to_ico(
-# Optional: PNG-Datei löschen, wenn nur ICO benötigt wird
+    os.path.join(CURRENT_DIR, 'neuron-favicon.svg'),
-# os.remove(png_path) 
+    os.path.join(CURRENT_DIR, 'neuron-favicon.ico')
+) 

static/img/neuron-favicon.svg

@@ -0,0 +1,29 @@
+<svg width="32" height="32" viewBox="0 0 32 32" fill="none" xmlns="http://www.w3.org/2000/svg">
+  <!-- Hintergrund -->
+  <rect width="32" height="32" rx="8" fill="#6d28d9" />
+  
+  <!-- Mindmap-Punkte -->
+  <!-- Zentraler Punkt -->
+  <circle cx="16" cy="16" r="3.5" fill="#a78bfa" />
+  
+  <!-- Umgebende Punkte -->
+  <circle cx="8" cy="10" r="2.5" fill="#8b5cf6" />
+  <circle cx="24" cy="10" r="2.5" fill="#8b5cf6" />
+  <circle cx="16" cy="26" r="2.5" fill="#8b5cf6" />
+  
+  <!-- Verbindende Linien -->
+  <path d="M16 16 L8 10" stroke="white" stroke-width="1" stroke-linecap="round" />
+  <path d="M16 16 L24 10" stroke="white" stroke-width="1" stroke-linecap="round" />
+  <path d="M16 16 L16 26" stroke="white" stroke-width="1" stroke-linecap="round" />
+  
+  <!-- Weitere Verbindungslinien für mehr Komplexität -->
+  <path d="M8 10 L16 26" stroke="#c4b5fd" stroke-width="0.8" stroke-linecap="round" stroke-dasharray="2 1" />
+  <path d="M24 10 L16 26" stroke="#c4b5fd" stroke-width="0.8" stroke-linecap="round" stroke-dasharray="2 1" />
+  <path d="M8 10 L24 10" stroke="#c4b5fd" stroke-width="0.8" stroke-linecap="round" stroke-dasharray="2 1" />
+  
+  <!-- Kleine Dekoration-Punkte für Hintergrund-Ähnlichkeit -->
+  <circle cx="5" cy="20" r="0.8" fill="#ddd6fe" opacity="0.7" />
+  <circle cx="27" cy="20" r="0.8" fill="#ddd6fe" opacity="0.7" />
+  <circle cx="20" cy="5" r="0.8" fill="#ddd6fe" opacity="0.7" />
+  <circle cx="12" cy="5" r="0.8" fill="#ddd6fe" opacity="0.7" />
+</svg>

static/img/neuron-logo.svg

@@ -0,0 +1,59 @@
+<svg width="64" height="64" viewBox="0 0 64 64" fill="none" xmlns="http://www.w3.org/2000/svg">
+  <!-- Hintergrund mit Farbverlauf -->
+  <rect width="64" height="64" rx="16" fill="url(#paint0_linear)" />
+  
+  <!-- Mindmap-Punkte -->
+  <!-- Zentraler Punkt -->
+  <circle cx="32" cy="32" r="8" fill="url(#glow_gradient)" filter="url(#glow)" />
+  
+  <!-- Umgebende Punkte -->
+  <circle cx="16" cy="20" r="6" fill="#8b5cf6" />
+  <circle cx="48" cy="20" r="6" fill="#8b5cf6" />
+  <circle cx="32" cy="52" r="6" fill="#8b5cf6" />
+  <circle cx="16" cy="48" r="4" fill="#a78bfa" />
+  <circle cx="48" cy="48" r="4" fill="#a78bfa" />
+  
+  <!-- Verbindende Linien (Hauptpfade) -->
+  <path d="M32 32 L16 20" stroke="white" stroke-width="2" stroke-linecap="round" />
+  <path d="M32 32 L48 20" stroke="white" stroke-width="2" stroke-linecap="round" />
+  <path d="M32 32 L32 52" stroke="white" stroke-width="2" stroke-linecap="round" />
+  <path d="M32 32 L16 48" stroke="white" stroke-width="2" stroke-linecap="round" />
+  <path d="M32 32 L48 48" stroke="white" stroke-width="2" stroke-linecap="round" />
+  
+  <!-- Zusätzliche Verbindungslinien -->
+  <path d="M16 20 L16 48" stroke="#c4b5fd" stroke-width="1.5" stroke-linecap="round" stroke-dasharray="3 2" />
+  <path d="M48 20 L48 48" stroke="#c4b5fd" stroke-width="1.5" stroke-linecap="round" stroke-dasharray="3 2" />
+  <path d="M16 20 L48 20" stroke="#c4b5fd" stroke-width="1.5" stroke-linecap="round" stroke-dasharray="3 2" />
+  <path d="M16 48 L32 52" stroke="#c4b5fd" stroke-width="1.5" stroke-linecap="round" stroke-dasharray="3 2" />
+  <path d="M48 48 L32 52" stroke="#c4b5fd" stroke-width="1.5" stroke-linecap="round" stroke-dasharray="3 2" />
+  
+  <!-- Kleine Dekoration-Punkte für Hintergrund-Ähnlichkeit -->
+  <circle cx="10" cy="36" r="1.5" fill="#ddd6fe" opacity="0.7" />
+  <circle cx="54" cy="36" r="1.5" fill="#ddd6fe" opacity="0.7" />
+  <circle cx="40" cy="10" r="1.5" fill="#ddd6fe" opacity="0.7" />
+  <circle cx="24" cy="10" r="1.5" fill="#ddd6fe" opacity="0.7" />
+  <circle cx="20" cy="36" r="1.2" fill="#ddd6fe" opacity="0.5" />
+  <circle cx="44" cy="36" r="1.2" fill="#ddd6fe" opacity="0.5" />
+  <circle cx="32" cy="16" r="1.2" fill="#ddd6fe" opacity="0.5" />
+  
+  <!-- Definitionen für Farbverläufe und Effekte -->
+  <defs>
+    <!-- Haupthintergrund-Farbverlauf -->
+    <linearGradient id="paint0_linear" x1="0" y1="0" x2="64" y2="64" gradientUnits="userSpaceOnUse">
+      <stop stop-color="#6d28d9" />
+      <stop offset="1" stop-color="#4c1d95" />
+    </linearGradient>
+    
+    <!-- Glüheffekt für den zentralen Punkt -->
+    <filter id="glow" x="20" y="20" width="24" height="24" filterUnits="userSpaceOnUse">
+      <feGaussianBlur stdDeviation="2" result="blur" />
+      <feComposite in="SourceGraphic" in2="blur" operator="over" />
+    </filter>
+    
+    <!-- Farbverlauf für den zentralen Punkt -->
+    <linearGradient id="glow_gradient" x1="24" y1="24" x2="40" y2="40" gradientUnits="userSpaceOnUse">
+      <stop stop-color="#a78bfa" />
+      <stop offset="1" stop-color="#8b5cf6" />
+    </linearGradient>
+  </defs>
+</svg>

static/js/mindmap-init.js

@@ -0,0 +1,214 @@
+/**
+ * Mindmap Initialisierung und Event-Handling
+ */
+
+// Warte auf die Cytoscape-Instanz
+document.addEventListener('mindmap-loaded', function() {
+  const cy = window.cy;
+  if (!cy) return;
+
+  // Event-Listener für Knoten-Klicks
+    cy.on('tap', 'node', function(evt) {
+        const node = evt.target;
+        
+    // Alle vorherigen Hervorhebungen zurücksetzen
+    cy.nodes().forEach(n => {
+      n.removeStyle();
+      n.connectedEdges().removeStyle();
+    });
+    
+    // Speichere ausgewählten Knoten
+    window.mindmapInstance.selectedNode = node;
+    
+    // Aktiviere leuchtenden Effekt statt Umkreisung
+    node.style({
+      'background-opacity': 1,
+      'background-color': node.data('color'),
+      'shadow-color': node.data('color'),
+      'shadow-opacity': 1,
+      'shadow-blur': 15,
+      'shadow-offset-x': 0,
+      'shadow-offset-y': 0
+    });
+    
+    // Verbundene Kanten und Knoten hervorheben
+    const connectedEdges = node.connectedEdges();
+    const connectedNodes = node.neighborhood('node');
+    
+    connectedEdges.style({
+      'line-color': '#a78bfa',
+      'target-arrow-color': '#a78bfa',
+      'source-arrow-color': '#a78bfa',
+      'line-opacity': 0.8,
+      'width': 2
+    });
+    
+    connectedNodes.style({
+      'shadow-opacity': 0.7,
+      'shadow-blur': 10,
+      'shadow-color': '#a78bfa'
+    });
+    
+    // Info-Panel aktualisieren
+    updateInfoPanel(node);
+    
+    // Seitenleiste aktualisieren
+    updateSidebar(node);
+  });
+  
+  // Klick auf Hintergrund - Auswahl zurücksetzen
+  cy.on('tap', function(evt) {
+    if (evt.target === cy) {
+      resetSelection(cy);
+    }
+  });
+
+  // Zoom-Controls
+  document.getElementById('zoomIn')?.addEventListener('click', () => {
+    cy.zoom({
+      level: cy.zoom() * 1.2,
+      renderedPosition: { x: cy.width() / 2, y: cy.height() / 2 }
+    });
+  });
+
+  document.getElementById('zoomOut')?.addEventListener('click', () => {
+    cy.zoom({
+      level: cy.zoom() / 1.2,
+      renderedPosition: { x: cy.width() / 2, y: cy.height() / 2 }
+    });
+  });
+
+  document.getElementById('resetView')?.addEventListener('click', () => {
+    cy.fit();
+    resetSelection(cy);
+  });
+
+  // Legend-Toggle
+  document.getElementById('toggleLegend')?.addEventListener('click', () => {
+    const legend = document.getElementById('categoryLegend');
+    if (legend) {
+      isLegendVisible = !isLegendVisible;
+      legend.style.display = isLegendVisible ? 'block' : 'none';
+    }
+  });
+
+  // Keyboard-Controls
+  document.addEventListener('keydown', (e) => {
+    if (e.key === '+' || e.key === '=') {
+      cy.zoom({
+        level: cy.zoom() * 1.2,
+        renderedPosition: { x: cy.width() / 2, y: cy.height() / 2 }
+      });
+    } else if (e.key === '-' || e.key === '_') {
+      cy.zoom({
+        level: cy.zoom() / 1.2,
+        renderedPosition: { x: cy.width() / 2, y: cy.height() / 2 }
+      });
+    } else if (e.key === 'Escape') {
+      resetSelection(cy);
+    }
+  });
+});
+
+/**
+ * Aktualisiert das Info-Panel mit Knoteninformationen
+ * @param {Object} node - Der ausgewählte Knoten
+ */
+function updateInfoPanel(node) {
+  const infoPanel = document.getElementById('infoPanel');
+  if (!infoPanel) return;
+
+  const data = node.data();
+  const connectedNodes = node.neighborhood('node');
+  
+  let html = `
+    <h3>${data.label || data.name}</h3>
+    <p class="category">${data.category || 'Keine Kategorie'}</p>
+    ${data.description ? `<p class="description">${data.description}</p>` : ''}
+    <div class="connections">
+      <h4>Verbindungen (${connectedNodes.length})</h4>
+      <ul>
+  `;
+  
+  connectedNodes.forEach(connectedNode => {
+    const connectedData = connectedNode.data();
+    html += `
+      <li style="color: ${connectedData.color || '#60a5fa'}">
+        ${connectedData.label || connectedData.name}
+      </li>
+    `;
+  });
+  
+  html += `
+      </ul>
+      </div>
+    `;
+    
+  infoPanel.innerHTML = html;
+  infoPanel.style.display = 'block';
+}
+
+/**
+ * Aktualisiert die Seitenleiste mit Knoteninformationen
+ * @param {Object} node - Der ausgewählte Knoten
+ */
+function updateSidebar(node) {
+  const sidebar = document.getElementById('sidebar');
+  if (!sidebar) return;
+
+  const data = node.data();
+  const connectedNodes = node.neighborhood('node');
+  
+  let html = `
+    <div class="node-details">
+      <h3>${data.label || data.name}</h3>
+      <p class="category">${data.category || 'Keine Kategorie'}</p>
+      ${data.description ? `<p class="description">${data.description}</p>` : ''}
+      <div class="connections">
+        <h4>Verbindungen (${connectedNodes.length})</h4>
+        <ul>
+  `;
+  
+  connectedNodes.forEach(connectedNode => {
+    const connectedData = connectedNode.data();
+    html += `
+      <li style="color: ${connectedData.color || '#60a5fa'}">
+        ${connectedData.label || connectedData.name}
+      </li>
+    `;
+  });
+  
+  html += `
+        </ul>
+              </div>
+            </div>
+          `;
+  
+  sidebar.innerHTML = html;
+}
+
+/**
+ * Setzt die Auswahl zurück
+ * @param {Object} cy - Cytoscape-Instanz
+ */
+function resetSelection(cy) {
+  window.mindmapInstance.selectedNode = null;
+  
+  // Alle Hervorhebungen zurücksetzen
+  cy.nodes().forEach(node => {
+    node.removeStyle();
+    node.connectedEdges().removeStyle();
+  });
+  
+  // Info-Panel ausblenden
+  const infoPanel = document.getElementById('infoPanel');
+  if (infoPanel) {
+    infoPanel.style.display = 'none';
+  }
+  
+  // Seitenleiste leeren
+  const sidebar = document.getElementById('sidebar');
+  if (sidebar) {
+    sidebar.innerHTML = '';
+  }
+} 

static/js/mindmap.html

@@ -1,234 +0,0 @@
-<!DOCTYPE html>
-<html lang="de">
-<head>
-  <meta charset="UTF-8">
-  <meta name="viewport" content="width=device-width, initial-scale=1.0">
-  <title>Interaktive Mindmap</title>
-  
-  <!-- Cytoscape.js -->
-  <script src="https://cdnjs.cloudflare.com/ajax/libs/cytoscape/3.26.0/cytoscape.min.js"></script>
-  
-  <!-- Socket.IO -->
-  <script src="https://cdnjs.cloudflare.com/ajax/libs/socket.io/4.7.2/socket.io.min.js"></script>
-  
-  <!-- Feather Icons (optional) -->
-  <script src="https://cdn.jsdelivr.net/npm/feather-icons/dist/feather.min.js"></script>
-  
-  <style>
-    * {
-      box-sizing: border-box;
-      margin: 0;
-      padding: 0;
-    }
-    
-    body {
-      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
-      background-color: #f9fafb;
-      color: #111827;
-      line-height: 1.5;
-    }
-    
-    .container {
-      display: flex;
-      flex-direction: column;
-      height: 100vh;
-      width: 100%;
-    }
-    
-    .header {
-      background-color: #1f2937;
-      color: white;
-      padding: 1rem;
-      display: flex;
-      justify-content: space-between;
-      align-items: center;
-    }
-    
-    .header h1 {
-      font-size: 1.5rem;
-      font-weight: 500;
-    }
-    
-    .toolbar {
-      background-color: #f3f4f6;
-      padding: 0.75rem;
-      display: flex;
-      gap: 0.5rem;
-      border-bottom: 1px solid #e5e7eb;
-    }
-    
-    .btn {
-      background-color: #3b82f6;
-      color: white;
-      border: none;
-      border-radius: 0.25rem;
-      padding: 0.5rem 1rem;
-      font-size: 0.875rem;
-      cursor: pointer;
-      transition: background-color 0.2s;
-      display: flex;
-      align-items: center;
-      gap: 0.5rem;
-    }
-    
-    .btn:hover {
-      background-color: #2563eb;
-    }
-    
-    .btn-secondary {
-      background-color: #6b7280;
-    }
-    
-    .btn-secondary:hover {
-      background-color: #4b5563;
-    }
-    
-    .btn-danger {
-      background-color: #ef4444;
-    }
-    
-    .btn-danger:hover {
-      background-color: #dc2626;
-    }
-    
-    .search-container {
-      flex: 1;
-      display: flex;
-      margin-left: 1rem;
-    }
-    
-    .search-input {
-      width: 100%;
-      max-width: 300px;
-      padding: 0.5rem;
-      border: 1px solid #d1d5db;
-      border-radius: 0.25rem;
-      font-size: 0.875rem;
-    }
-    
-    #cy {
-      flex: 1;
-      width: 100%;
-      position: relative;
-    }
-    
-    .category-filters {
-      display: flex;
-      gap: 0.5rem;
-      flex-wrap: wrap;
-      padding: 0.75rem;
-      background-color: #ffffff;
-      border-bottom: 1px solid #e5e7eb;
-    }
-    
-    .category-filter {
-      border: none;
-      border-radius: 0.25rem;
-      padding: 0.25rem 0.75rem;
-      font-size: 0.75rem;
-      cursor: pointer;
-      transition: opacity 0.2s;
-      color: white;
-    }
-    
-    .category-filter:not(.active) {
-      opacity: 0.6;
-    }
-    
-    .category-filter:hover:not(.active) {
-      opacity: 0.8;
-    }
-    
-    .footer {
-      background-color: #f3f4f6;
-      padding: 0.75rem;
-      text-align: center;
-      font-size: 0.75rem;
-      color: #6b7280;
-      border-top: 1px solid #e5e7eb;
-    }
-    
-    /* Kontextmenü Styling */
-    #context-menu {
-      position: absolute;
-      background-color: white;
-      border: 1px solid #e5e7eb;
-      border-radius: 0.25rem;
-      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
-      z-index: 1000;
-    }
-    
-    #context-menu .menu-item {
-      padding: 0.5rem 1rem;
-      cursor: pointer;
-    }
-    
-    #context-menu .menu-item:hover {
-      background-color: #f3f4f6;
-    }
-  </style>
-</head>
-<body>
-  <div class="container">
-    <header class="header">
-      <h1>Interaktive Mindmap</h1>
-      <div class="search-container">
-        <input type="text" id="search-mindmap" class="search-input" placeholder="Suchen...">
-      </div>
-    </header>
-    
-    <div class="toolbar">
-      <button id="addNode" class="btn">
-        <i data-feather="plus-circle"></i>
-        Knoten hinzufügen
-      </button>
-      <button id="addEdge" class="btn">
-        <i data-feather="git-branch"></i>
-        Verbindung erstellen
-      </button>
-      <button id="editNode" class="btn btn-secondary">
-        <i data-feather="edit-2"></i>
-        Knoten bearbeiten
-      </button>
-      <button id="deleteNode" class="btn btn-danger">
-        <i data-feather="trash-2"></i>
-        Knoten löschen
-      </button>
-      <button id="deleteEdge" class="btn btn-danger">
-        <i data-feather="scissors"></i>
-        Verbindung löschen
-      </button>
-      <button id="reLayout" class="btn btn-secondary">
-        <i data-feather="refresh-cw"></i>
-        Layout neu anordnen
-      </button>
-      <button id="exportMindmap" class="btn btn-secondary">
-        <i data-feather="download"></i>
-        Exportieren
-      </button>
-    </div>
-    
-    <div id="category-filters" class="category-filters">
-      <!-- Wird dynamisch befüllt -->
-    </div>
-    
-    <div id="cy"></div>
-    
-    <footer class="footer">
-      Mindmap-Anwendung © 2023
-    </footer>
-  </div>
-  
-  <!-- Unsere Mindmap JS -->
-  <script src="../js/mindmap.js"></script>
-  
-  <!-- Icons initialisieren -->
-  <script>
-    document.addEventListener('DOMContentLoaded', () => {
-      if (typeof feather !== 'undefined') {
-        feather.replace();
-      }
-    });
-  </script>
-</body>
-</html> 

static/js/mindmap.js

@@ -1,749 +0,0 @@
-/**
- * Mindmap.js - Interaktive Mind-Map Implementierung
- * - Cytoscape.js für Graph-Rendering
- * - Fetch API für REST-Zugriffe
- * - Socket.IO für Echtzeit-Synchronisation
- */
-
-(async () => {
-  /* 1. Initialisierung und Grundkonfiguration */
-  const cy = cytoscape({
-    container: document.getElementById('cy'),
-    style: [
-      {
-        selector: 'node',
-        style: {
-          'label': 'data(name)',
-          'text-valign': 'center',
-          'color': '#fff',
-          'background-color': 'data(color)',
-          'width': 45,
-          'height': 45,
-          'font-size': 11,
-          'text-outline-width': 1,
-          'text-outline-color': '#000',
-          'text-outline-opacity': 0.5,
-          'text-wrap': 'wrap',
-          'text-max-width': 80
-        }
-      },
-      {
-        selector: 'node[icon]',
-        style: {
-          'background-image': function(ele) {
-            return `static/img/icons/${ele.data('icon')}.svg`;
-          },
-          'background-width': '60%',
-          'background-height': '60%',
-          'background-position-x': '50%',
-          'background-position-y': '40%',
-          'text-margin-y': 10
-        }
-      },
-      {
-        selector: 'edge',
-        style: {
-          'width': 2,
-          'line-color': '#888',
-          'target-arrow-shape': 'triangle',
-          'curve-style': 'bezier',
-          'target-arrow-color': '#888'
-        }
-      },
-      {
-        selector: ':selected',
-        style: {
-          'border-width': 3,
-          'border-color': '#f8f32b'
-        }
-      }
-    ],
-    layout: { 
-      name: 'breadthfirst', 
-      directed: true, 
-      padding: 30,
-      spacingFactor: 1.2
-    }
-  });
-
-  /* 2. Hilfs-Funktionen für API-Zugriffe */
-  const get = async endpoint => {
-    try {
-      const response = await fetch(endpoint);
-      if (!response.ok) {
-        console.error(`API-Fehler: ${endpoint} antwortet mit Status ${response.status}`);
-        return []; // Leeres Array zurückgeben bei Fehlern
-      }
-      return await response.json();
-    } catch (error) {
-      console.error(`Fehler beim Abrufen von ${endpoint}:`, error);
-      return []; // Leeres Array zurückgeben bei Netzwerkfehlern
-    }
-  };
-  
-  const post = async (endpoint, body) => {
-    try {
-      const response = await fetch(endpoint, { 
-        method: 'POST', 
-        headers: { 'Content-Type': 'application/json' }, 
-        body: JSON.stringify(body) 
-      });
-      if (!response.ok) {
-        console.error(`API-Fehler: ${endpoint} antwortet mit Status ${response.status}`);
-        return {}; // Leeres Objekt zurückgeben bei Fehlern
-      }
-      return await response.json();
-    } catch (error) {
-      console.error(`Fehler beim POST zu ${endpoint}:`, error);
-      return {}; // Leeres Objekt zurückgeben bei Netzwerkfehlern
-    }
-  };
-  
-  const del = async endpoint => {
-    try {
-      const response = await fetch(endpoint, { method: 'DELETE' });
-      if (!response.ok) {
-        console.error(`API-Fehler: ${endpoint} antwortet mit Status ${response.status}`);
-        return {}; // Leeres Objekt zurückgeben bei Fehlern
-      }
-      return await response.json();
-    } catch (error) {
-      console.error(`Fehler beim DELETE zu ${endpoint}:`, error);
-      return {}; // Leeres Objekt zurückgeben bei Netzwerkfehlern
-    }
-  };
-
-  /* 3. Kategorien laden für Style-Informationen */
-  let categories = await get('/api/categories');
-  
-  /* 4. Daten laden und Rendering */
-  const loadMindmap = async () => {
-    try {
-      // Nodes und Beziehungen parallel laden
-      const [nodes, relationships] = await Promise.all([
-        get('/api/mind_map_nodes'), 
-        get('/api/node_relationships')
-      ]);
-      
-      // Graph leeren (für Reload-Fälle)
-      cy.elements().remove();
-      
-      // Überprüfen, ob nodes ein Array ist, wenn nicht, setze es auf ein leeres Array
-      const nodesArray = Array.isArray(nodes) ? nodes : [];
-      
-      // Knoten zum Graph hinzufügen
-      cy.add(
-        nodesArray.map(node => {
-          // Kategorie-Informationen für Styling abrufen
-          const category = categories.find(c => c.id === node.category_id) || {};
-          
-          return {
-            data: { 
-              id: node.id.toString(),
-              name: node.name,
-              description: node.description,
-              color: node.color_code || category.color_code || '#6b7280',
-              icon: node.icon || category.icon,
-              category_id: node.category_id
-            },
-            position: node.x && node.y ? { x: node.x, y: node.y } : undefined
-          };
-        })
-      );
-      
-      // Überprüfen, ob relationships ein Array ist, wenn nicht, setze es auf ein leeres Array
-      const relationshipsArray = Array.isArray(relationships) ? relationships : [];
-      
-      // Kanten zum Graph hinzufügen
-      cy.add(
-        relationshipsArray.map(rel => ({
-          data: {
-            id: `${rel.parent_id}_${rel.child_id}`,
-            source: rel.parent_id.toString(),
-            target: rel.child_id.toString()
-          }
-        }))
-      );
-      
-      // Wenn keine Knoten geladen wurden, Fallback-Knoten erstellen
-      if (nodesArray.length === 0) {
-        // Mindestens einen Standardknoten hinzufügen
-        cy.add({
-          data: {
-            id: 'fallback-1',
-            name: 'Mindmap',
-            description: 'Erstellen Sie hier Ihre eigene Mindmap',
-            color: '#3b82f6',
-            icon: 'help-circle'
-          },
-          position: { x: 300, y: 200 }
-        });
-        
-        // Erfolgsmeldung anzeigen
-        console.log('Mindmap erfolgreich initialisiert mit Fallback-Knoten');
-        
-        // Info-Meldung für Benutzer anzeigen
-        const infoBox = document.createElement('div');
-        infoBox.classList.add('info-message');
-        infoBox.style.position = 'absolute';
-        infoBox.style.top = '50%';
-        infoBox.style.left = '50%';
-        infoBox.style.transform = 'translate(-50%, -50%)';
-        infoBox.style.padding = '15px 20px';
-        infoBox.style.backgroundColor = 'rgba(59, 130, 246, 0.9)';
-        infoBox.style.color = 'white';
-        infoBox.style.borderRadius = '8px';
-        infoBox.style.zIndex = '5';
-        infoBox.style.maxWidth = '80%';
-        infoBox.style.textAlign = 'center';
-        infoBox.style.boxShadow = '0 4px 12px rgba(0,0,0,0.15)';
-        infoBox.innerHTML = 'Mindmap erfolgreich initialisiert.<br>Verwenden Sie die Werkzeugleiste, um Knoten hinzuzufügen.';
-        
-        document.getElementById('cy').appendChild(infoBox);
-        
-        // Meldung nach 5 Sekunden ausblenden
-        setTimeout(() => {
-          infoBox.style.opacity = '0';
-          infoBox.style.transition = 'opacity 0.5s ease';
-          setTimeout(() => {
-            if (infoBox.parentNode) {
-              infoBox.parentNode.removeChild(infoBox);
-            }
-          }, 500);
-        }, 5000);
-      }
-      
-      // Layout anwenden wenn keine Positionsdaten vorhanden
-      const nodesWithoutPosition = cy.nodes().filter(node => 
-        !node.position() || (node.position().x === 0 && node.position().y === 0)
-      );
-      
-      if (nodesWithoutPosition.length > 0) {
-        cy.layout({ 
-          name: 'breadthfirst', 
-          directed: true, 
-          padding: 30,
-          spacingFactor: 1.2
-        }).run();
-      }
-      
-      // Tooltip-Funktionalität
-      cy.nodes().unbind('mouseover').bind('mouseover', (event) => {
-        const node = event.target;
-        const description = node.data('description');
-        
-        if (description) {
-          const tooltip = document.getElementById('node-tooltip') || 
-                          document.createElement('div');
-          
-          if (!tooltip.id) {
-            tooltip.id = 'node-tooltip';
-            tooltip.style.position = 'absolute';
-            tooltip.style.backgroundColor = '#333';
-            tooltip.style.color = '#fff';
-            tooltip.style.padding = '8px';
-            tooltip.style.borderRadius = '4px';
-            tooltip.style.maxWidth = '250px';
-            tooltip.style.zIndex = 10;
-            tooltip.style.pointerEvents = 'none';
-            tooltip.style.transition = 'opacity 0.2s';
-            tooltip.style.boxShadow = '0 2px 10px rgba(0,0,0,0.3)';
-            document.body.appendChild(tooltip);
-          }
-          
-          const renderedPosition = node.renderedPosition();
-          const containerRect = cy.container().getBoundingClientRect();
-          
-          tooltip.innerHTML = description;
-          tooltip.style.left = (containerRect.left + renderedPosition.x + 25) + 'px';
-          tooltip.style.top = (containerRect.top + renderedPosition.y - 15) + 'px';
-          tooltip.style.opacity = '1';
-        }
-      });
-      
-      cy.nodes().unbind('mouseout').bind('mouseout', () => {
-        const tooltip = document.getElementById('node-tooltip');
-        if (tooltip) {
-          tooltip.style.opacity = '0';
-        }
-      });
-      
-    } catch (error) {
-      console.error('Fehler beim Laden der Mindmap:', error);
-      alert('Die Mindmap konnte nicht geladen werden. Bitte prüfen Sie die Konsole für Details.');
-    }
-  };
-  
-  // Initial laden
-  await loadMindmap();
-
-  /* 5. Socket.IO für Echtzeit-Synchronisation */
-  const socket = io();
-  
-  socket.on('node_added', async (node) => {
-    // Kategorie-Informationen für Styling abrufen
-    const category = categories.find(c => c.id === node.category_id) || {};
-    
-    cy.add({
-      data: { 
-        id: node.id.toString(),
-        name: node.name,
-        description: node.description,
-        color: node.color_code || category.color_code || '#6b7280',
-        icon: node.icon || category.icon,
-        category_id: node.category_id
-      }
-    });
-    
-    // Layout neu anwenden, wenn nötig
-    if (!node.x || !node.y) {
-      cy.layout({ name: 'breadthfirst', directed: true, padding: 30 }).run();
-    }
-  });
-  
-  socket.on('node_updated', (node) => {
-    const cyNode = cy.$id(node.id.toString());
-    if (cyNode.length > 0) {
-      // Kategorie-Informationen für Styling abrufen
-      const category = categories.find(c => c.id === node.category_id) || {};
-      
-      cyNode.data({
-        name: node.name,
-        description: node.description,
-        color: node.color_code || category.color_code || '#6b7280',
-        icon: node.icon || category.icon,
-        category_id: node.category_id
-      });
-      
-      if (node.x && node.y) {
-        cyNode.position({ x: node.x, y: node.y });
-      }
-    }
-  });
-  
-  socket.on('node_deleted', (nodeId) => {
-    const cyNode = cy.$id(nodeId.toString());
-    if (cyNode.length > 0) {
-      cy.remove(cyNode);
-    }
-  });
-  
-  socket.on('relationship_added', (rel) => {
-    cy.add({
-      data: {
-        id: `${rel.parent_id}_${rel.child_id}`,
-        source: rel.parent_id.toString(),
-        target: rel.child_id.toString()
-      }
-    });
-  });
-  
-  socket.on('relationship_deleted', (rel) => {
-    const edgeId = `${rel.parent_id}_${rel.child_id}`;
-    const cyEdge = cy.$id(edgeId);
-    if (cyEdge.length > 0) {
-      cy.remove(cyEdge);
-    }
-  });
-  
-  socket.on('category_updated', async () => {
-    // Kategorien neu laden
-    categories = await get('/api/categories');
-    // Nodes aktualisieren, die diese Kategorie verwenden
-    cy.nodes().forEach(node => {
-      const categoryId = node.data('category_id');
-      if (categoryId) {
-        const category = categories.find(c => c.id === categoryId);
-        if (category) {
-          node.data('color', node.data('color_code') || category.color_code);
-          node.data('icon', node.data('icon') || category.icon);
-        }
-      }
-    });
-  });
-
-  /* 6. UI-Interaktionen */
-  // Knoten hinzufügen
-  const btnAddNode = document.getElementById('addNode');
-  if (btnAddNode) {
-    btnAddNode.addEventListener('click', async () => {
-      const name = prompt('Knotenname eingeben:');
-      if (!name) return;
-      
-      const description = prompt('Beschreibung (optional):');
-      
-      // Kategorie auswählen
-      let categoryId = null;
-      if (categories.length > 0) {
-        const categoryOptions = categories.map((c, i) => `${i}: ${c.name}`).join('\n');
-        const categoryChoice = prompt(
-          `Kategorie auswählen (Nummer eingeben):\n${categoryOptions}`,
-          '0'
-        );
-        
-        if (categoryChoice !== null) {
-          const index = parseInt(categoryChoice, 10);
-          if (!isNaN(index) && index >= 0 && index < categories.length) {
-            categoryId = categories[index].id;
-          }
-        }
-      }
-      
-      // Knoten erstellen
-      await post('/api/mind_map_node', { 
-        name, 
-        description,
-        category_id: categoryId
-      });
-      // Darstellung wird durch Socket.IO Event übernommen
-    });
-  }
-  
-  // Verbindung hinzufügen
-  const btnAddEdge = document.getElementById('addEdge');
-  if (btnAddEdge) {
-    btnAddEdge.addEventListener('click', async () => {
-      const sel = cy.$('node:selected');
-      if (sel.length !== 2) {
-        alert('Bitte genau zwei Knoten auswählen (Parent → Child)');
-        return;
-      }
-      
-      const [parent, child] = sel.map(node => node.id());
-      await post('/api/node_relationship', { 
-        parent_id: parent, 
-        child_id: child 
-      });
-      // Darstellung wird durch Socket.IO Event übernommen
-    });
-  }
-  
-  // Knoten bearbeiten
-  const btnEditNode = document.getElementById('editNode');
-  if (btnEditNode) {
-    btnEditNode.addEventListener('click', async () => {
-      const sel = cy.$('node:selected');
-      if (sel.length !== 1) {
-        alert('Bitte genau einen Knoten auswählen');
-        return;
-      }
-      
-      const node = sel[0];
-      const nodeData = node.data();
-      
-      const name = prompt('Knotenname:', nodeData.name);
-      if (!name) return;
-      
-      const description = prompt('Beschreibung:', nodeData.description || '');
-      
-      // Kategorie auswählen
-      let categoryId = nodeData.category_id;
-      if (categories.length > 0) {
-        const categoryOptions = categories.map((c, i) => `${i}: ${c.name}`).join('\n');
-        const categoryChoice = prompt(
-          `Kategorie auswählen (Nummer eingeben):\n${categoryOptions}`,
-          categories.findIndex(c => c.id === categoryId).toString()
-        );
-        
-        if (categoryChoice !== null) {
-          const index = parseInt(categoryChoice, 10);
-          if (!isNaN(index) && index >= 0 && index < categories.length) {
-            categoryId = categories[index].id;
-          }
-        }
-      }
-      
-      // Knoten aktualisieren
-      await post(`/api/mind_map_node/${nodeData.id}`, { 
-        name, 
-        description,
-        category_id: categoryId
-      });
-      // Darstellung wird durch Socket.IO Event übernommen
-    });
-  }
-  
-  // Knoten löschen
-  const btnDeleteNode = document.getElementById('deleteNode');
-  if (btnDeleteNode) {
-    btnDeleteNode.addEventListener('click', async () => {
-      const sel = cy.$('node:selected');
-      if (sel.length !== 1) {
-        alert('Bitte genau einen Knoten auswählen');
-        return;
-      }
-      
-      if (confirm('Sind Sie sicher, dass Sie diesen Knoten löschen möchten?')) {
-        const nodeId = sel[0].id();
-        await del(`/api/mind_map_node/${nodeId}`);
-        // Darstellung wird durch Socket.IO Event übernommen
-      }
-    });
-  }
-  
-  // Verbindung löschen
-  const btnDeleteEdge = document.getElementById('deleteEdge');
-  if (btnDeleteEdge) {
-    btnDeleteEdge.addEventListener('click', async () => {
-      const sel = cy.$('edge:selected');
-      if (sel.length !== 1) {
-        alert('Bitte genau eine Verbindung auswählen');
-        return;
-      }
-      
-      if (confirm('Sind Sie sicher, dass Sie diese Verbindung löschen möchten?')) {
-        const edge = sel[0];
-        const parentId = edge.source().id();
-        const childId = edge.target().id();
-        
-        await del(`/api/node_relationship/${parentId}/${childId}`);
-        // Darstellung wird durch Socket.IO Event übernommen
-      }
-    });
-  }
-  
-  // Layout aktualisieren
-  const btnReLayout = document.getElementById('reLayout');
-  if (btnReLayout) {
-    btnReLayout.addEventListener('click', () => {
-      cy.layout({ 
-        name: 'breadthfirst', 
-        directed: true, 
-        padding: 30,
-        spacingFactor: 1.2
-      }).run();
-    });
-  }
-
-  /* 7. Position speichern bei Drag & Drop */
-  cy.on('dragfree', 'node', async (e) => {
-    const node = e.target;
-    const position = node.position();
-    
-    await post(`/api/mind_map_node/${node.id()}/position`, {
-      x: Math.round(position.x),
-      y: Math.round(position.y)
-    });
-    
-    // Andere Benutzer erhalten die Position über den node_updated Event
-  });
-
-  /* 8. Kontextmenü (optional) */
-  const setupContextMenu = () => {
-    cy.on('cxttap', 'node', function(e) {
-      const node = e.target;
-      const nodeData = node.data();
-      
-      // Position des Kontextmenüs berechnen
-      const renderedPosition = node.renderedPosition();
-      const containerRect = cy.container().getBoundingClientRect();
-      const menuX = containerRect.left + renderedPosition.x;
-      const menuY = containerRect.top + renderedPosition.y;
-      
-      // Kontextmenü erstellen oder aktualisieren
-      let contextMenu = document.getElementById('context-menu');
-      if (!contextMenu) {
-        contextMenu = document.createElement('div');
-        contextMenu.id = 'context-menu';
-        contextMenu.style.position = 'absolute';
-        contextMenu.style.backgroundColor = '#fff';
-        contextMenu.style.border = '1px solid #ccc';
-        contextMenu.style.borderRadius = '4px';
-        contextMenu.style.padding = '5px 0';
-        contextMenu.style.boxShadow = '0 2px 10px rgba(0,0,0,0.2)';
-        contextMenu.style.zIndex = 1000;
-        document.body.appendChild(contextMenu);
-      }
-      
-      // Menüinhalte
-      contextMenu.innerHTML = `
-        <div class="menu-item" data-action="edit">Knoten bearbeiten</div>
-        <div class="menu-item" data-action="connect">Verbindung erstellen</div>
-        <div class="menu-item" data-action="delete">Knoten löschen</div>
-      `;
-      
-      // Styling für Menüpunkte
-      const menuItems = contextMenu.querySelectorAll('.menu-item');
-      menuItems.forEach(item => {
-        item.style.padding = '8px 20px';
-        item.style.cursor = 'pointer';
-        item.style.fontSize = '14px';
-        
-        item.addEventListener('mouseover', function() {
-          this.style.backgroundColor = '#f0f0f0';
-        });
-        
-        item.addEventListener('mouseout', function() {
-          this.style.backgroundColor = 'transparent';
-        });
-        
-        // Event-Handler
-        item.addEventListener('click', async function() {
-          const action = this.getAttribute('data-action');
-          
-          switch(action) {
-            case 'edit':
-              // Knoten bearbeiten (gleiche Logik wie beim Edit-Button)
-              const name = prompt('Knotenname:', nodeData.name);
-              if (name) {
-                const description = prompt('Beschreibung:', nodeData.description || '');
-                await post(`/api/mind_map_node/${nodeData.id}`, { name, description });
-              }
-              break;
-              
-            case 'connect':
-              // Modus zum Verbinden aktivieren
-              cy.nodes().unselect();
-              node.select();
-              alert('Wählen Sie nun einen zweiten Knoten aus, um eine Verbindung zu erstellen');
-              break;
-              
-            case 'delete':
-              if (confirm('Sind Sie sicher, dass Sie diesen Knoten löschen möchten?')) {
-                await del(`/api/mind_map_node/${nodeData.id}`);
-              }
-              break;
-          }
-          
-          // Menü schließen
-          contextMenu.style.display = 'none';
-        });
-      });
-      
-      // Menü positionieren und anzeigen
-      contextMenu.style.left = menuX + 'px';
-      contextMenu.style.top = menuY + 'px';
-      contextMenu.style.display = 'block';
-      
-      // Event-Listener zum Schließen des Menüs
-      const closeMenu = function() {
-        if (contextMenu) {
-          contextMenu.style.display = 'none';
-        }
-        document.removeEventListener('click', closeMenu);
-      };
-      
-      // Verzögerung, um den aktuellen Click nicht zu erfassen
-      setTimeout(() => {
-        document.addEventListener('click', closeMenu);
-      }, 0);
-      
-      e.preventDefault();
-    });
-  };
-  
-  // Kontextmenü aktivieren (optional)
-  // setupContextMenu();
-
-  /* 9. Export-Funktion (optional) */
-  const btnExport = document.getElementById('exportMindmap');
-  if (btnExport) {
-    btnExport.addEventListener('click', () => {
-      const elements = cy.json().elements;
-      const exportData = {
-        nodes: elements.nodes.map(n => ({
-          id: n.data.id,
-          name: n.data.name,
-          description: n.data.description,
-          category_id: n.data.category_id,
-          x: Math.round(n.position?.x || 0),
-          y: Math.round(n.position?.y || 0)
-        })),
-        relationships: elements.edges.map(e => ({
-          parent_id: e.data.source,
-          child_id: e.data.target
-        }))
-      };
-      
-      const blob = new Blob([JSON.stringify(exportData, null, 2)], {type: 'application/json'});
-      const url = URL.createObjectURL(blob);
-      const a = document.createElement('a');
-      a.href = url;
-      a.download = 'mindmap_export.json';
-      document.body.appendChild(a);
-      a.click();
-      document.body.removeChild(a);
-      URL.revokeObjectURL(url);
-    });
-  }
-
-  /* 10. Filter-Funktion nach Kategorien (optional) */
-  const setupCategoryFilters = () => {
-    const filterContainer = document.getElementById('category-filters');
-    if (!filterContainer || !categories.length) return;
-    
-    filterContainer.innerHTML = '';
-    
-    // "Alle anzeigen" Option
-    const allBtn = document.createElement('button');
-    allBtn.innerText = 'Alle Kategorien';
-    allBtn.className = 'category-filter active';
-    allBtn.onclick = () => {
-      document.querySelectorAll('.category-filter').forEach(btn => btn.classList.remove('active'));
-      allBtn.classList.add('active');
-      cy.nodes().removeClass('filtered').show();
-      cy.edges().show();
-    };
-    filterContainer.appendChild(allBtn);
-    
-    // Filter-Button pro Kategorie
-    categories.forEach(category => {
-      const btn = document.createElement('button');
-      btn.innerText = category.name;
-      btn.className = 'category-filter';
-      btn.style.backgroundColor = category.color_code;
-      btn.style.color = '#fff';
-      btn.onclick = () => {
-        document.querySelectorAll('.category-filter').forEach(btn => btn.classList.remove('active'));
-        btn.classList.add('active');
-        
-        const matchingNodes = cy.nodes().filter(node => node.data('category_id') === category.id);
-        cy.nodes().addClass('filtered').hide();
-        matchingNodes.removeClass('filtered').show();
-        
-        // Verbindungen zu/von diesen Knoten anzeigen
-        cy.edges().hide();
-        matchingNodes.connectedEdges().show();
-      };
-      filterContainer.appendChild(btn);
-    });
-  };
-  
-  // Filter-Funktionalität aktivieren (optional)
-  // setupCategoryFilters();
-
-  /* 11. Suchfunktion (optional) */
-  const searchInput = document.getElementById('search-mindmap');
-  if (searchInput) {
-    searchInput.addEventListener('input', (e) => {
-      const searchTerm = e.target.value.toLowerCase();
-      
-      if (!searchTerm) {
-        cy.nodes().removeClass('search-hidden').show();
-        cy.edges().show();
-        return;
-      }
-      
-      cy.nodes().forEach(node => {
-        const name = node.data('name').toLowerCase();
-        const description = (node.data('description') || '').toLowerCase();
-        
-        if (name.includes(searchTerm) || description.includes(searchTerm)) {
-          node.removeClass('search-hidden').show();
-          node.connectedEdges().show();
-        } else {
-          node.addClass('search-hidden').hide();
-          // Kanten nur verstecken, wenn beide verbundenen Knoten versteckt sind
-          node.connectedEdges().forEach(edge => {
-            const otherNode = edge.source().id() === node.id() ? edge.target() : edge.source();
-            if (otherNode.hasClass('search-hidden')) {
-              edge.hide();
-            }
-          });
-        }
-      });
-    });
-  }
-
-  console.log('Mindmap erfolgreich initialisiert');
-})(); 

static/js/modules/chatgpt-assistant.js

@@ -247,130 +247,63 @@ class ChatGPTAssistant {
         
         const bubble = document.createElement('div');
         bubble.className = sender === 'user' 
-            ? 'bg-primary-100 dark:bg-primary-900 text-gray-800 dark:text-white rounded-lg py-2 px-3 max-w-[85%]'
+            ? 'user-message rounded-lg py-2 px-3 max-w-[85%]'
-            : 'bg-gray-100 dark:bg-dark-700 text-gray-800 dark:text-white rounded-lg py-2 px-3 max-w-[85%]';
+            : 'assistant-message rounded-lg py-2 px-3 max-w-[85%]';
-        
+            
-        // Formatierung des Texts (mit Markdown für Assistent-Nachrichten)
+        // Nachrichtentext einfügen, falls Markdown-Parser verfügbar, nutzen
-        let formattedText = '';
+        if (this.markdownParser) {
-        
+            bubble.innerHTML = this.markdownParser.parse(text);
-        if (sender === 'assistant' && this.markdownParser) {
-            // Für Assistentnachrichten Markdown verwenden
-            try {
-                formattedText = this.markdownParser.parse(text);
-                
-                // CSS für Markdown-Formatierung hinzufügen
-                const markdownStyles = `
-                    .markdown-bubble h1, .markdown-bubble h2, .markdown-bubble h3, 
-                    .markdown-bubble h4, .markdown-bubble h5, .markdown-bubble h6 {
-                        font-weight: bold;
-                        margin-top: 0.5rem;
-                        margin-bottom: 0.5rem;
-                    }
-                    .markdown-bubble h1 { font-size: 1.4rem; }
-                    .markdown-bubble h2 { font-size: 1.3rem; }
-                    .markdown-bubble h3 { font-size: 1.2rem; }
-                    .markdown-bubble h4 { font-size: 1.1rem; }
-                    .markdown-bubble ul, .markdown-bubble ol {
-                        padding-left: 1.5rem;
-                        margin: 0.5rem 0;
-                    }
-                    .markdown-bubble ul { list-style-type: disc; }
-                    .markdown-bubble ol { list-style-type: decimal; }
-                    .markdown-bubble p { margin: 0.5rem 0; }
-                    .markdown-bubble code {
-                        font-family: monospace;
-                        background-color: rgba(0, 0, 0, 0.1);
-                        padding: 1px 4px;
-                        border-radius: 3px;
-                    }
-                    .markdown-bubble pre {
-                        background-color: rgba(0, 0, 0, 0.1);
-                        padding: 0.5rem;
-                        border-radius: 4px;
-                        overflow-x: auto;
-                        margin: 0.5rem 0;
-                    }
-                    .markdown-bubble pre code {
-                        background-color: transparent;
-                        padding: 0;
-                    }
-                    .markdown-bubble blockquote {
-                        border-left: 3px solid rgba(0, 0, 0, 0.2);
-                        padding-left: 0.8rem;
-                        margin: 0.5rem 0;
-                        font-style: italic;
-                    }
-                    .dark .markdown-bubble code {
-                        background-color: rgba(255, 255, 255, 0.1);
-                    }
-                    .dark .markdown-bubble pre {
-                        background-color: rgba(255, 255, 255, 0.1);
-                    }
-                    .dark .markdown-bubble blockquote {
-                        border-left-color: rgba(255, 255, 255, 0.2);
-                    }
-                `;
-                
-                // Füge die Styles hinzu, wenn sie noch nicht vorhanden sind
-                if (!document.querySelector('#markdown-chat-styles')) {
-                    const style = document.createElement('style');
-                    style.id = 'markdown-chat-styles';
-                    style.textContent = markdownStyles;
-                    document.head.appendChild(style);
-                }
-                
-                // Klasse für Markdown-Formatierung hinzufügen
-                bubble.classList.add('markdown-bubble');
-            } catch (error) {
-                console.error('Fehler bei der Markdown-Formatierung:', error);
-                // Fallback zur einfachen Formatierung
-                formattedText = text.split('\n').map(line => {
-                    if (line.trim() === '') return '<br>';
-                    return `<p>${line}</p>`;
-                }).join('');
-            }
         } else {
-            // Für Benutzernachrichten einfache Formatierung
+            bubble.textContent = text;
-            formattedText = text.split('\n').map(line => {
-                if (line.trim() === '') return '<br>';
-                return `<p>${line}</p>`;
-            }).join('');
         }
         
-        bubble.innerHTML = formattedText;
+        // Links in der Nachricht klickbar machen
+        const links = bubble.querySelectorAll('a');
+        links.forEach(link => {
+            link.target = '_blank';
+            link.rel = 'noopener noreferrer';
+            link.className = 'text-primary-600 dark:text-primary-400 underline';
+        });
+        
+        // Code-Blöcke stylen
+        const codeBlocks = bubble.querySelectorAll('pre');
+        codeBlocks.forEach(block => {
+            block.className = 'bg-gray-100 dark:bg-dark-900 p-2 rounded my-2 overflow-x-auto';
+        });
+        
+        const inlineCode = bubble.querySelectorAll('code:not(pre code)');
+        inlineCode.forEach(code => {
+            code.className = 'bg-gray-100 dark:bg-dark-900 px-1 rounded font-mono text-sm';
+        });
         
         messageEl.appendChild(bubble);
+        this.chatHistory.appendChild(messageEl);
         
-        if (this.chatHistory) {
+        // Scrolle zum Ende des Chat-Verlaufs
-            this.chatHistory.appendChild(messageEl);
+        this.chatHistory.scrollTop = this.chatHistory.scrollHeight;
-            
-            // Scroll zum Ende des Verlaufs
-            this.chatHistory.scrollTop = this.chatHistory.scrollHeight;
-        }
     }
 
     /**
-     * Zeigt Vorschläge als klickbare Pills an
+     * Zeigt Vorschläge für mögliche Fragen an
-     * @param {string[]} suggestions - Liste von Vorschlägen
+     * @param {Array} suggestions - Array von Vorschlägen
      */
     showSuggestions(suggestions) {
-        if (!this.suggestionArea) return;
+        if (!this.suggestionArea || !suggestions || !suggestions.length) return;
         
         // Vorherige Vorschläge entfernen
         this.suggestionArea.innerHTML = '';
         
-        if (suggestions && suggestions.length > 0) {
+        // Neue Vorschläge hinzufügen
-            suggestions.forEach(suggestion => {
+        suggestions.forEach((text, index) => {
-                const pill = document.createElement('button');
+            const pill = document.createElement('button');
-                pill.className = 'suggestion-pill text-sm bg-gray-200 dark:bg-dark-600 hover:bg-gray-300 dark:hover:bg-dark-500 text-gray-800 dark:text-gray-200 rounded-full px-3 py-1 mb-2 transition-colors';
+            pill.className = 'suggestion-pill text-sm px-3 py-1.5 rounded-full bg-primary-100 dark:bg-primary-900 text-primary-800 dark:text-primary-200 hover:bg-primary-200 dark:hover:bg-primary-800 transition-all duration-200';
-                pill.textContent = suggestion;
+            pill.style.animationDelay = `${index * 0.1}s`;
-                this.suggestionArea.appendChild(pill);
+            pill.textContent = text;
-            });
+            this.suggestionArea.appendChild(pill);
-            
+        });
-            this.suggestionArea.classList.remove('hidden');
+        
-        } else {
+        // Vorschlagsbereich anzeigen
-            this.suggestionArea.classList.add('hidden');
+        this.suggestionArea.classList.remove('hidden');
-        }
     }
 
     /**
@@ -409,14 +342,27 @@ class ChatGPTAssistant {
                     messages: this.messages
                 }),
                 cache: 'no-cache', // Kein Cache verwenden
-                credentials: 'same-origin' // Cookies senden
+                credentials: 'same-origin', // Cookies senden
+                timeout: 60000 // 60 Sekunden Timeout
             });
             
             // Ladeindikator entfernen
             this.removeLoadingIndicator();
             
             if (!response.ok) {
-                throw new Error(`Serverfehler: ${response.status} ${response.statusText}`);
+                const errorText = await response.text();
+                let errorMessage;
+                
+                try {
+                    // Versuche, die Fehlermeldung zu parsen
+                    const errorData = JSON.parse(errorText);
+                    errorMessage = errorData.error || `Serverfehler: ${response.status} ${response.statusText}`;
+                } catch {
+                    // Bei Parsing-Fehler verwende Standardfehlermeldung
+                    errorMessage = `Serverfehler: ${response.status} ${response.statusText}`;
+                }
+                
+                throw new Error(errorMessage);
             }
             
             const data = await response.json();
@@ -442,24 +388,45 @@ class ChatGPTAssistant {
             // Ladeindikator entfernen, falls noch vorhanden
             this.removeLoadingIndicator();
             
+            // Spezielle Fehlermeldungen für bestimmte Fehlertypen
+            const errorMessage = error.message || '';
+            let userFriendlyMessage = 'Es gab ein Problem mit der Anfrage.';
+            
+            if (errorMessage.includes('timeout') || errorMessage.includes('Zeitüberschreitung')) {
+                userFriendlyMessage = 'Die Antwort hat zu lange gedauert. Der Server ist möglicherweise überlastet.';
+            } else if (errorMessage.includes('500') || errorMessage.includes('Internal Server Error')) {
+                userFriendlyMessage = 'Ein Serverfehler ist aufgetreten. Wir arbeiten an einer Lösung.';
+            } else if (errorMessage.includes('429') || errorMessage.includes('rate limit')) {
+                userFriendlyMessage = 'Die API-Anfragelimits wurden erreicht. Bitte warte einen Moment.';
+            }
+            
             // Fehlermeldung anzeigen oder Wiederholungsversuch starten
             if (this.retryCount < this.maxRetries) {
                 this.retryCount++;
-                this.addMessage('assistant', 'Es gab ein Problem mit der Anfrage. Ich versuche es erneut...');
+                this.addMessage('assistant', `${userFriendlyMessage} Ich versuche es erneut... (Versuch ${this.retryCount}/${this.maxRetries})`);
                 
-                // Kurze Verzögerung vor dem erneuten Versuch
+                // Letzte Benutzernachricht speichern für den Wiederholungsversuch
-                setTimeout(() => {
+                const lastUserMessageIndex = this.messages.findLastIndex(msg => msg.role === 'user');
-                    // Letzte Benutzernachricht aus dem Messages-Array entfernen
+                if (lastUserMessageIndex >= 0) {
-                    const lastUserMessage = this.messages[this.messages.length - 2].content;
+                    const lastUserMessage = this.messages[lastUserMessageIndex].content;
-                    this.messages = this.messages.slice(0, -2); // Entferne Benutzernachricht und Fehlermeldung
                     
-                    // Erneuter Versand mit gleicher Nachricht
+                    // Kurze Verzögerung vor dem erneuten Versuch mit exponentieller Backoff-Strategie
-                    this.inputField.value = lastUserMessage;
+                    const retryDelay = 1500 * Math.pow(2, this.retryCount - 1); // 1.5s, 3s, 6s, ...
-                    this.sendMessage();
+                    
-                }, 1500);
+                    setTimeout(() => {
+                        // Entferne Fehlermeldung aus dem Messages-Array, behalte aber die Benutzernachricht
+                        this.messages = this.messages.filter(msg => 
+                            !(msg.role === 'assistant' && msg.content.includes('versuche es erneut'))
+                        );
+                        
+                        // Erneuter Versand mit gleicher Nachricht
+                        this.inputField.value = lastUserMessage;
+                        this.sendMessage();
+                    }, retryDelay);
+                }
             } else {
                 // Maximale Anzahl an Wiederholungsversuchen erreicht
-                this.addMessage('assistant', 'Es tut mir leid, aber es gab ein Problem bei der Verarbeitung deiner Anfrage. Bitte versuche es später noch einmal.');
+                this.addMessage('assistant', 'Es tut mir leid, aber es gab ein Problem bei der Verarbeitung deiner Anfrage. Bitte versuche es später noch einmal oder kontaktiere den Support, falls das Problem weiterhin besteht.');
                 this.retryCount = 0; // Zurücksetzen für die nächste Anfrage
             }
         } finally {
@@ -512,26 +479,33 @@ class ChatGPTAssistant {
     }
 
     /**
-     * Zeigt einen Ladeindikator im Chat an
+     * Zeigt eine Ladeanimation an
      */
     showLoadingIndicator() {
         if (!this.chatHistory) return;
         
-        // Entferne vorhandenen Ladeindikator (falls vorhanden)
+        // Prüfen, ob bereits ein Ladeindikator angezeigt wird
-        this.removeLoadingIndicator();
+        if (document.getElementById('assistant-loading-indicator')) return;
         
         const loadingEl = document.createElement('div');
-        loadingEl.id = 'assistant-loading';
         loadingEl.className = 'flex justify-start';
+        loadingEl.id = 'assistant-loading-indicator';
         
         const bubble = document.createElement('div');
-        bubble.className = 'bg-gray-100 dark:bg-dark-700 text-gray-800 dark:text-white rounded-lg py-2 px-3';
+        bubble.className = 'assistant-message rounded-lg py-3 px-4 max-w-[85%] flex items-center';
-        bubble.innerHTML = '<div class="typing-indicator"><span></span><span></span><span></span></div>';
         
+        const typingIndicator = document.createElement('div');
+        typingIndicator.className = 'typing-indicator';
+        typingIndicator.innerHTML = `
+            <span></span>
+            <span></span>
+            <span></span>
+        `;
+        
+        bubble.appendChild(typingIndicator);
         loadingEl.appendChild(bubble);
-        this.chatHistory.appendChild(loadingEl);
         
-        // Scroll zum Ende des Verlaufs
+        this.chatHistory.appendChild(loadingEl);
         this.chatHistory.scrollTop = this.chatHistory.scrollHeight;
     }
 
@@ -539,7 +513,7 @@ class ChatGPTAssistant {
      * Entfernt den Ladeindikator aus dem Chat
      */
     removeLoadingIndicator() {
-        const loadingIndicator = document.getElementById('assistant-loading');
+        const loadingIndicator = document.getElementById('assistant-loading-indicator');
         if (loadingIndicator) {
             loadingIndicator.remove();
         }

static/js/modules/mindmap.js

@@ -1,844 +0,0 @@
-/**
- * MindMap D3.js Modul
- * Visualisiert die Mindmap mit D3.js
- */
-
-class MindMapVisualization {
-  constructor(containerSelector, options = {}) {
-    this.containerSelector = containerSelector;
-    this.container = d3.select(containerSelector);
-    this.width = options.width || this.container.node().clientWidth || 800;
-    this.height = options.height || 600;
-    this.nodeRadius = options.nodeRadius || 14;
-    this.selectedNodeRadius = options.selectedNodeRadius || 20;
-    this.linkDistance = options.linkDistance || 150;
-    this.chargeStrength = options.chargeStrength || -900;
-    this.centerForce = options.centerForce || 0.15;
-    this.onNodeClick = options.onNodeClick || ((node) => console.log('Node clicked:', node));
-
-    this.nodes = [];
-    this.links = [];
-    this.simulation = null;
-    this.svg = null;
-    this.linkElements = null;
-    this.nodeElements = null;
-    this.textElements = null;
-    this.tooltipEnabled = options.tooltipEnabled !== undefined ? options.tooltipEnabled : true;
-    
-    this.mouseoverNode = null;
-    this.selectedNode = null;
-    
-    this.zoomFactor = 1;
-    this.tooltipDiv = null;
-    this.isLoading = true;
-    
-    // Lade die gemerkten Knoten
-    this.bookmarkedNodes = this.loadBookmarkedNodes();
-    
-    // Sicherstellen, dass der Container bereit ist
-    if (this.container.node()) {
-      this.init();
-      this.setupDefaultNodes();
-      
-      // Sofortige Datenladung
-      window.setTimeout(() => {
-        this.loadData();
-      }, 100);
-    } else {
-      console.error('Mindmap-Container nicht gefunden:', containerSelector);
-    }
-  }
-  
-  // Standardknoten als Fallback einrichten, falls die API nicht reagiert
-  setupDefaultNodes() {
-    // Basis-Mindmap mit Hauptthemen
-    const defaultNodes = [
-      { id: "root", name: "Wissen", description: "Zentrale Wissensbasis", thought_count: 0 },
-      { id: "philosophy", name: "Philosophie", description: "Philosophisches Denken", thought_count: 0 },
-      { id: "science", name: "Wissenschaft", description: "Wissenschaftliche Erkenntnisse", thought_count: 0 },
-      { id: "technology", name: "Technologie", description: "Technologische Entwicklungen", thought_count: 0 },
-      { id: "arts", name: "Künste", description: "Künstlerische Ausdrucksformen", thought_count: 0 }
-    ];
-    
-    const defaultLinks = [
-      { source: "root", target: "philosophy" },
-      { source: "root", target: "science" },
-      { source: "root", target: "technology" },
-      { source: "root", target: "arts" }
-    ];
-    
-    // Als Fallback verwenden, falls die API fehlschlägt
-    this.defaultNodes = defaultNodes;
-    this.defaultLinks = defaultLinks;
-  }
-  
-  init() {
-    // SVG erstellen, wenn noch nicht vorhanden
-    if (!this.svg) {
-      // Container zuerst leeren
-      this.container.html('');
-      
-      this.svg = this.container
-        .append('svg')
-        .attr('width', '100%')
-        .attr('height', this.height)
-        .attr('viewBox', `0 0 ${this.width} ${this.height}`)
-        .attr('class', 'mindmap-svg')
-        .call(
-          d3.zoom()
-            .scaleExtent([0.1, 5])
-            .on('zoom', (event) => {
-              this.handleZoom(event.transform);
-            })
-        );
-      
-      // Hauptgruppe für alles, was zoom-transformierbar ist
-      this.g = this.svg.append('g');
-      
-      // Tooltip initialisieren
-      if (!d3.select('body').select('.node-tooltip').size()) {
-        this.tooltipDiv = d3.select('body')
-          .append('div')
-          .attr('class', 'node-tooltip')
-          .style('opacity', 0)
-          .style('position', 'absolute')
-          .style('pointer-events', 'none')
-          .style('background', 'rgba(20, 20, 40, 0.9)')
-          .style('color', '#ffffff')
-          .style('border', '1px solid rgba(160, 80, 255, 0.2)')
-          .style('border-radius', '6px')
-          .style('padding', '8px 12px')
-          .style('font-size', '14px')
-          .style('max-width', '250px')
-          .style('box-shadow', '0 10px 25px rgba(0, 0, 0, 0.5), 0 0 10px rgba(160, 80, 255, 0.2)');
-      } else {
-        this.tooltipDiv = d3.select('body').select('.node-tooltip');
-      }
-    }
-    
-    // Force-Simulation initialisieren
-    this.simulation = d3.forceSimulation()
-      .force('link', d3.forceLink().id(d => d.id).distance(this.linkDistance))
-      .force('charge', d3.forceManyBody().strength(this.chargeStrength))
-      .force('center', d3.forceCenter(this.width / 2, this.height / 2).strength(this.centerForce))
-      .force('collision', d3.forceCollide().radius(this.nodeRadius * 2));
-      
-    // Globale Mindmap-Instanz für externe Zugriffe setzen
-    window.mindmapInstance = this;
-  }
-  
-  handleZoom(transform) {
-    this.g.attr('transform', transform);
-    this.zoomFactor = transform.k;
-    
-    // Knotengröße anpassen, um bei Zoom lesbar zu bleiben
-    if (this.nodeElements) {
-      this.nodeElements
-        .attr('r', d => (d === this.selectedNode ? this.selectedNodeRadius : this.nodeRadius) / Math.sqrt(transform.k));
-    }
-    
-    // Textgröße anpassen
-    if (this.textElements) {
-      this.textElements
-        .style('font-size', `${12 / Math.sqrt(transform.k)}px`);
-    }
-  }
-  
-  async loadData() {
-    try {
-      // Ladeindikator anzeigen
-      this.showLoading();
-      
-      // Verwende sofort die Standarddaten für eine schnelle erste Anzeige
-      this.nodes = [...this.defaultNodes];
-      this.links = [...this.defaultLinks];
-      
-      // Visualisierung sofort aktualisieren
-      this.isLoading = false;
-      this.updateVisualization();
-      
-      // Status auf bereit setzen - don't wait for API
-      this.container.attr('data-status', 'ready');
-      
-      // API-Aufruf mit kürzerem Timeout im Hintergrund durchführen
-      try {
-        const controller = new AbortController();
-        const timeoutId = setTimeout(() => controller.abort(), 5000); // 5 Sekunden Timeout
-        
-        const response = await fetch('/api/mindmap', { 
-          signal: controller.signal,
-          headers: {
-            'Cache-Control': 'no-cache', 
-            'Pragma': 'no-cache'
-          }
-        });
-        clearTimeout(timeoutId);
-        
-        if (!response.ok) {
-          console.warn(`HTTP Fehler: ${response.status}, versuche erneute Verbindung`);
-          
-          // Bei Verbindungsfehler versuchen, die Verbindung neu herzustellen
-          const retryResponse = await fetch('/api/refresh-mindmap', {
-            headers: {
-              'Cache-Control': 'no-cache', 
-              'Pragma': 'no-cache'
-            }
-          });
-          
-          if (!retryResponse.ok) {
-            throw new Error(`Retry failed with status: ${retryResponse.status}`);
-          }
-          
-          const retryData = await retryResponse.json();
-          
-          if (!retryData.success || !retryData.nodes || retryData.nodes.length === 0) {
-            console.warn('Keine Mindmap-Daten nach Neuversuch, verwende weiterhin Standard-Daten.');
-            return; // Keep using default data
-          }
-          
-          // Flache Liste von Knoten und Verbindungen erstellen
-          this.nodes = [];
-          this.links = [];
-          
-          // Knoten direkt übernehmen
-          retryData.nodes.forEach(node => {
-            this.nodes.push({
-              id: node.id,
-              name: node.name,
-              description: node.description || '',
-              thought_count: node.thought_count || 0,
-              color: this.generateColorFromString(node.name),
-            });
-            
-            // Verbindungen hinzufügen
-            if (node.connections && node.connections.length > 0) {
-              node.connections.forEach(conn => {
-                this.links.push({
-                  source: node.id,
-                  target: conn.target
-                });
-              });
-            }
-          });
-          
-          // Visualisierung aktualisieren mit den tatsächlichen Daten
-          this.updateVisualization();
-          return;
-        }
-        
-        const data = await response.json();
-        
-        if (!data || !data.nodes || data.nodes.length === 0) {
-          console.warn('Keine Mindmap-Daten vorhanden, verwende weiterhin Standard-Daten.');
-          return; // Keep using default data
-        }
-        
-        // Flache Liste von Knoten und Verbindungen erstellen
-        this.nodes = [];
-        this.links = [];
-        this.processHierarchicalData(data.nodes);
-        
-        // Visualisierung aktualisieren mit den tatsächlichen Daten
-        this.updateVisualization();
-        
-      } catch (error) {
-        console.warn('Fehler beim Laden der Mindmap-Daten, verwende Standarddaten:', error);
-        // Already using default data, no action needed
-      }
-      
-    } catch (error) {
-      console.error('Kritischer Fehler bei der Mindmap-Darstellung:', error);
-      this.showError('Fehler beim Laden der Mindmap-Daten. Bitte laden Sie die Seite neu.');
-      this.container.attr('data-status', 'error');
-    }
-  }
-  
-  showLoading() {
-    // Element nur leeren, wenn es noch kein SVG enthält
-    if (!this.container.select('svg').size()) {
-      this.container.html(`
-        <div class="flex justify-center items-center h-full">
-          <div class="text-center">
-            <div class="animate-spin rounded-full h-16 w-16 border-t-2 border-b-2 border-primary-400 mx-auto mb-4"></div>
-            <p class="text-lg text-white">Mindmap wird geladen...</p>
-          </div>
-        </div>
-      `);
-    }
-  }
-  
-  processHierarchicalData(hierarchicalNodes, parentId = null) {
-    hierarchicalNodes.forEach(node => {
-      // Knoten hinzufügen, wenn noch nicht vorhanden
-      if (!this.nodes.find(n => n.id === node.id)) {
-        this.nodes.push({
-          id: node.id,
-          name: node.name,
-          description: node.description || '',
-          thought_count: node.thought_count || 0,
-          color: this.generateColorFromString(node.name),
-        });
-      }
-      
-      // Verbindung zum Elternknoten hinzufügen
-      if (parentId !== null) {
-        this.links.push({
-          source: parentId,
-          target: node.id
-        });
-      }
-      
-      // Rekursiv für Kindknoten aufrufen
-      if (node.children && node.children.length > 0) {
-        this.processHierarchicalData(node.children, node.id);
-      }
-    });
-  }
-  
-  generateColorFromString(str) {
-    // Erzeugt eine deterministische Farbe basierend auf dem String
-    let hash = 0;
-    for (let i = 0; i < str.length; i++) {
-      hash = str.charCodeAt(i) + ((hash << 5) - hash);
-    }
-    
-    // Verwende deterministische Farbe aus unserem Farbschema
-    const colors = [
-      '#4080ff', // primary-400
-      '#a040ff', // secondary-400
-      '#205cf5', // primary-500
-      '#8020f5', // secondary-500
-      '#1040e0', // primary-600
-      '#6010e0', // secondary-600
-    ];
-    
-    return colors[Math.abs(hash) % colors.length];
-  }
-  
-  updateVisualization() {
-    // Starte die Visualisierung nur, wenn nicht mehr im Ladezustand
-    if (this.isLoading) return;
-
-    // Container leeren, wenn Diagramm neu erstellt wird
-    if (!this.svg) {
-      this.container.html('');
-      this.init();
-    }
-
-    // Performance-Optimierung: Deaktiviere Transition während des Datenladens
-    const useTransitions = false;
-
-    // Links (Edges) erstellen
-    this.linkElements = this.g.selectAll('.link')
-      .data(this.links)
-      .join(
-        enter => enter.append('line')
-          .attr('class', 'link')
-          .attr('stroke', '#ffffff30')
-          .attr('stroke-width', 2)
-          .attr('stroke-dasharray', d => d.relation_type === 'contradicts' ? '5,5' : null)
-          .attr('marker-end', d => d.relation_type === 'builds_upon' ? 'url(#arrowhead)' : null),
-        update => update
-          .attr('stroke', '#ffffff30')
-          .attr('stroke-dasharray', d => d.relation_type === 'contradicts' ? '5,5' : null)
-          .attr('marker-end', d => d.relation_type === 'builds_upon' ? 'url(#arrowhead)' : null),
-        exit => exit.remove()
-      );
-    
-    // Pfeilspitze für gerichtete Beziehungen hinzufügen (falls noch nicht vorhanden)
-    if (!this.svg.select('defs').node()) {
-      const defs = this.svg.append('defs');
-      defs.append('marker')
-        .attr('id', 'arrowhead')
-        .attr('viewBox', '0 -5 10 10')
-        .attr('refX', 20)
-        .attr('refY', 0)
-        .attr('orient', 'auto')
-        .attr('markerWidth', 6)
-        .attr('markerHeight', 6)
-        .append('path')
-        .attr('d', 'M0,-5L10,0L0,5')
-        .attr('fill', '#ffffff50');
-    }
-    
-    // Simplified Effekte definieren, falls noch nicht vorhanden
-    if (!this.svg.select('#glow').node()) {
-      const defs = this.svg.select('defs').size() ? this.svg.select('defs') : this.svg.append('defs');
-      
-      // Glow-Effekt für Knoten
-      const filter = defs.append('filter')
-        .attr('id', 'glow')
-        .attr('x', '-50%')
-        .attr('y', '-50%')
-        .attr('width', '200%')
-        .attr('height', '200%');
-      
-      filter.append('feGaussianBlur')
-        .attr('stdDeviation', '1')
-        .attr('result', 'blur');
-        
-      filter.append('feComposite')
-        .attr('in', 'SourceGraphic')
-        .attr('in2', 'blur')
-        .attr('operator', 'over');
-      
-      // Blur-Effekt für Schatten
-      const blurFilter = defs.append('filter')
-        .attr('id', 'blur')
-        .attr('x', '-50%')
-        .attr('y', '-50%')
-        .attr('width', '200%')
-        .attr('height', '200%');
-      
-      blurFilter.append('feGaussianBlur')
-        .attr('stdDeviation', '1');
-    }
-    
-    // Knoten-Gruppe erstellen/aktualisieren
-    const nodeGroups = this.g.selectAll('.node-group')
-      .data(this.nodes)
-      .join(
-        enter => {
-          const group = enter.append('g')
-            .attr('class', 'node-group')
-            .call(d3.drag()
-              .on('start', (event, d) => this.dragStarted(event, d))
-              .on('drag', (event, d) => this.dragged(event, d))
-              .on('end', (event, d) => this.dragEnded(event, d)));
-          
-          // Hintergrundschatten für besseren Kontrast
-          group.append('circle')
-            .attr('class', 'node-shadow')
-            .attr('r', d => this.nodeRadius * 1.2)
-            .attr('fill', 'rgba(0, 0, 0, 0.3)')
-            .attr('filter', 'url(#blur)');
-          
-          // Kreis für jeden Knoten
-          group.append('circle')
-            .attr('class', d => `node ${this.isNodeBookmarked(d.id) ? 'bookmarked' : ''}`)
-            .attr('r', this.nodeRadius)
-            .attr('fill', d => d.color || this.generateColorFromString(d.name))
-            .attr('stroke', d => this.isNodeBookmarked(d.id) ? '#FFD700' : '#ffffff50')
-            .attr('stroke-width', d => this.isNodeBookmarked(d.id) ? 3 : 2)
-            .attr('filter', 'url(#glow)');
-          
-          // Text-Label mit besserem Kontrast
-          group.append('text')
-            .attr('class', 'node-label')
-            .attr('dy', '0.35em')
-            .attr('text-anchor', 'middle')
-            .attr('fill', '#ffffff')
-            .attr('stroke', 'rgba(0, 0, 0, 0.4)')
-            .attr('stroke-width', '0.7px')
-            .attr('paint-order', 'stroke')
-            .style('font-size', '12px')
-            .style('font-weight', '500')
-            .style('pointer-events', 'none')
-            .text(d => d.name.length > 12 ? d.name.slice(0, 10) + '...' : d.name);
-          
-          // Interaktivität hinzufügen
-          group
-            .on('mouseover', (event, d) => this.nodeMouseover(event, d))
-            .on('mouseout', (event, d) => this.nodeMouseout(event, d))
-            .on('click', (event, d) => this.nodeClicked(event, d));
-          
-          return group;
-        },
-        update => {
-          // Knoten aktualisieren
-          update.select('.node')
-            .attr('class', d => `node ${this.isNodeBookmarked(d.id) ? 'bookmarked' : ''}`)
-            .attr('fill', d => d.color || this.generateColorFromString(d.name))
-            .attr('stroke', d => this.isNodeBookmarked(d.id) ? '#FFD700' : '#ffffff50')
-            .attr('stroke-width', d => this.isNodeBookmarked(d.id) ? 3 : 2);
-          
-          // Text aktualisieren
-          update.select('.node-label')
-            .text(d => d.name.length > 12 ? d.name.slice(0, 10) + '...' : d.name);
-            
-          return update;
-        },
-        exit => exit.remove()
-      );
-    
-    // Einzelne Elemente für direkten Zugriff speichern
-    this.nodeElements = this.g.selectAll('.node');
-    this.textElements = this.g.selectAll('.node-label');
-    
-    // Performance-Optimierung: Weniger Simulationsschritte für schnellere Stabilisierung
-    this.simulation
-      .nodes(this.nodes)
-      .on('tick', () => this.ticked())
-      .alpha(0.3) // Reduzierter Wert für schnellere Stabilisierung
-      .alphaDecay(0.05); // Erhöhter Wert für schnellere Stabilisierung
-    
-    this.simulation.force('link')
-      .links(this.links);
-    
-    // Simulation neu starten
-    this.simulation.restart();
-
-    // Update connection counts
-    this.updateConnectionCounts();
-  }
-  
-  ticked() {
-    // Linienpositionen aktualisieren
-    this.linkElements
-      .attr('x1', d => d.source.x)
-      .attr('y1', d => d.source.y)
-      .attr('x2', d => d.target.x)
-      .attr('y2', d => d.target.y);
-    
-    // Knotenpositionen aktualisieren
-    this.g.selectAll('.node-group')
-      .attr('transform', d => `translate(${d.x}, ${d.y})`);
-  }
-  
-  dragStarted(event, d) {
-    if (!event.active) this.simulation.alphaTarget(0.3).restart();
-    d.fx = d.x;
-    d.fy = d.y;
-  }
-  
-  dragged(event, d) {
-    d.fx = event.x;
-    d.fy = event.y;
-  }
-  
-  dragEnded(event, d) {
-    if (!event.active) this.simulation.alphaTarget(0);
-    d.fx = null;
-    d.fy = null;
-  }
-  
-  nodeMouseover(event, d) {
-    this.mouseoverNode = d;
-    
-    // Tooltip anzeigen
-    if (this.tooltipEnabled) {
-      const isBookmarked = this.isNodeBookmarked(d.id);
-      const tooltipContent = `
-        <div class="p-2">
-          <strong>${d.name}</strong>
-          ${d.description ? `<p class="text-sm text-gray-200 mt-1">${d.description}</p>` : ''}
-          <div class="text-xs text-gray-300 mt-1">
-            Gedanken: ${d.thought_count}
-          </div>
-          <div class="mt-2">
-            <button id="bookmark-button" class="px-2 py-1 text-xs rounded bg-gray-700 hover:bg-gray-600 text-white" 
-                    data-nodeid="${d.id}">
-              ${isBookmarked ? '<i class="fas fa-bookmark mr-1"></i> Gemerkt' : '<i class="far fa-bookmark mr-1"></i> Merken'}
-            </button>
-          </div>
-        </div>
-      `;
-      
-      this.tooltipDiv
-        .html(tooltipContent)
-        .style('left', (event.pageX + 10) + 'px')
-        .style('top', (event.pageY - 10) + 'px')
-        .transition()
-        .duration(200)
-        .style('opacity', 1);
-      
-      // Event-Listener für den Bookmark-Button hinzufügen
-      document.getElementById('bookmark-button').addEventListener('click', (e) => {
-        e.stopPropagation();
-        const nodeId = e.currentTarget.getAttribute('data-nodeid');
-        const isNowBookmarked = this.toggleBookmark(nodeId);
-        
-        // Button-Text aktualisieren
-        if (isNowBookmarked) {
-          e.currentTarget.innerHTML = '<i class="fas fa-bookmark mr-1"></i> Gemerkt';
-        } else {
-          e.currentTarget.innerHTML = '<i class="far fa-bookmark mr-1"></i> Merken';
-        }
-      });
-    }
-    
-    // Knoten visuell hervorheben
-    d3.select(event.currentTarget).select('circle')
-      .transition()
-      .duration(200)
-      .attr('r', this.nodeRadius * 1.2)
-      .attr('stroke', this.isNodeBookmarked(d.id) ? '#FFD700' : '#ffffff');
-  }
-  
-  nodeMouseout(event, d) {
-    this.mouseoverNode = null;
-    
-    // Tooltip ausblenden
-    if (this.tooltipEnabled) {
-      this.tooltipDiv
-        .transition()
-        .duration(200)
-        .style('opacity', 0);
-    }
-    
-    // Knoten-Stil zurücksetzen, wenn nicht ausgewählt
-    const nodeElement = d3.select(event.currentTarget).select('circle');
-    if (d !== this.selectedNode) {
-      const isBookmarked = this.isNodeBookmarked(d.id);
-      nodeElement
-        .transition()
-        .duration(200)
-        .attr('r', this.nodeRadius)
-        .attr('stroke', isBookmarked ? '#FFD700' : '#ffffff50')
-        .attr('stroke-width', isBookmarked ? 3 : 2);
-    }
-  }
-  
-  nodeClicked(event, d) {
-    // Frühere Auswahl zurücksetzen
-    if (this.selectedNode && this.selectedNode !== d) {
-      this.g.selectAll('.node')
-        .filter(n => n === this.selectedNode)
-        .transition()
-        .duration(200)
-        .attr('r', this.nodeRadius)
-        .attr('stroke', '#ffffff50');
-    }
-    
-    // Neue Auswahl hervorheben
-    if (this.selectedNode !== d) {
-      this.selectedNode = d;
-      d3.select(event.currentTarget).select('circle')
-        .transition()
-        .duration(200)
-        .attr('r', this.selectedNodeRadius)
-        .attr('stroke', '#ffffff');
-    }
-    
-    // Callback mit Node-Daten aufrufen
-    this.onNodeClick(d);
-  }
-  
-  showError(message) {
-    this.container.html(`
-      <div class="w-full text-center p-6">
-        <div class="mb-4 text-red-500">
-          <i class="fas fa-exclamation-triangle text-4xl"></i>
-        </div>
-        <p class="text-lg text-gray-200">${message}</p>
-      </div>
-    `);
-  }
-  
-  // Fokussiert die Ansicht auf einen bestimmten Knoten
-  focusNode(nodeId) {
-    const node = this.nodes.find(n => n.id === nodeId);
-    if (!node) return;
-    
-    // Simuliere einen Klick auf den Knoten
-    const nodeElement = this.g.selectAll('.node-group')
-      .filter(d => d.id === nodeId);
-    
-    nodeElement.dispatch('click');
-    
-    // Zentriere den Knoten in der Ansicht
-    const transform = d3.zoomIdentity
-      .translate(this.width / 2, this.height / 2)
-      .scale(1.2)
-      .translate(-node.x, -node.y);
-    
-    this.svg.transition()
-      .duration(750)
-      .call(
-        d3.zoom().transform,
-        transform
-      );
-  }
-  
-  // Filtert die Mindmap basierend auf einem Suchbegriff
-  filterBySearchTerm(searchTerm) {
-    if (!searchTerm || searchTerm.trim() === '') {
-      // Alle Knoten anzeigen
-      this.g.selectAll('.node-group')
-        .style('opacity', 1)
-        .style('pointer-events', 'all');
-      
-      this.g.selectAll('.link')
-        .style('opacity', 1);
-      
-      return;
-    }
-    
-    const searchLower = searchTerm.toLowerCase();
-    const matchingNodes = this.nodes.filter(node => 
-      node.name.toLowerCase().includes(searchLower) ||
-      (node.description && node.description.toLowerCase().includes(searchLower))
-    );
-    
-    const matchingNodeIds = new Set(matchingNodes.map(n => n.id));
-    
-    // Passende Knoten hervorheben, andere ausblenden
-    this.g.selectAll('.node-group')
-      .style('opacity', d => matchingNodeIds.has(d.id) ? 1 : 0.2)
-      .style('pointer-events', d => matchingNodeIds.has(d.id) ? 'all' : 'none');
-    
-    // Verbindungen zwischen passenden Knoten hervorheben
-    this.g.selectAll('.link')
-      .style('opacity', d => 
-        matchingNodeIds.has(d.source.id) && matchingNodeIds.has(d.target.id) ? 1 : 0.1
-      );
-    
-    // Auf den ersten passenden Knoten fokussieren, wenn vorhanden
-    if (matchingNodes.length > 0) {
-      this.focusNode(matchingNodes[0].id);
-    }
-  }
-
-  /**
-   * Updates the thought_count property for each node based on existing connections
-   */
-  updateConnectionCounts() {
-    // Reset all counts first
-    this.nodes.forEach(node => {
-      // Initialize thought_count if it doesn't exist
-      if (typeof node.thought_count !== 'number') {
-        node.thought_count = 0;
-      }
-      
-      // Count connections for this node
-      const connectedNodes = this.getConnectedNodes(node);
-      node.thought_count = connectedNodes.length;
-    });
-    
-    // Update UI to show counts
-    this.updateNodeLabels();
-  }
-  
-  /**
-   * Updates the visual representation of node labels to include connection counts
-   */
-  updateNodeLabels() {
-    if (!this.textElements) return;
-    
-    this.textElements.text(d => {
-      if (d.thought_count > 0) {
-        return `${d.name} (${d.thought_count})`;
-      }
-      return d.name;
-    });
-  }
-  
-  /**
-   * Adds a new connection between nodes and updates the counts
-   */
-  addConnection(sourceNode, targetNode) {
-    if (!sourceNode || !targetNode) return false;
-    
-    // Check if connection already exists
-    if (this.isConnected(sourceNode, targetNode)) return false;
-    
-    // Add new connection
-    this.links.push({
-      source: sourceNode.id,
-      target: targetNode.id
-    });
-    
-    // Update counts
-    this.updateConnectionCounts();
-    
-    // Update visualization
-    this.updateVisualization();
-    
-    return true;
-  }
-
-  // Lädt gemerkete Knoten aus dem LocalStorage
-  loadBookmarkedNodes() {
-    try {
-      const bookmarked = localStorage.getItem('bookmarkedNodes');
-      return bookmarked ? JSON.parse(bookmarked) : [];
-    } catch (error) {
-      console.error('Fehler beim Laden der gemerkten Knoten:', error);
-      return [];
-    }
-  }
-  
-  // Speichert gemerkete Knoten im LocalStorage
-  saveBookmarkedNodes() {
-    try {
-      localStorage.setItem('bookmarkedNodes', JSON.stringify(this.bookmarkedNodes));
-    } catch (error) {
-      console.error('Fehler beim Speichern der gemerkten Knoten:', error);
-    }
-  }
-  
-  // Prüft, ob ein Knoten gemerkt ist
-  isNodeBookmarked(nodeId) {
-    return this.bookmarkedNodes.includes(nodeId);
-  }
-  
-  // Merkt einen Knoten oder hebt die Markierung auf
-  toggleBookmark(nodeId) {
-    const index = this.bookmarkedNodes.indexOf(nodeId);
-    if (index === -1) {
-      // Node hinzufügen
-      this.bookmarkedNodes.push(nodeId);
-      this.updateNodeAppearance(nodeId, true);
-    } else {
-      // Node entfernen
-      this.bookmarkedNodes.splice(index, 1);
-      this.updateNodeAppearance(nodeId, false);
-    }
-    
-    // Änderungen speichern
-    this.saveBookmarkedNodes();
-    
-    // Event auslösen für andere Komponenten
-    const event = new CustomEvent('nodeBookmarkToggled', {
-      detail: { 
-        nodeId: nodeId, 
-        isBookmarked: index === -1 
-      }
-    });
-    document.dispatchEvent(event);
-    
-    return index === -1; // true wenn jetzt gemerkt, false wenn Markierung aufgehoben
-  }
-  
-  // Aktualisiert das Aussehen eines Knotens basierend auf Bookmark-Status
-  updateNodeAppearance(nodeId, isBookmarked) {
-    this.g.selectAll('.node-group')
-      .filter(d => d.id === nodeId)
-      .select('.node')
-      .classed('bookmarked', isBookmarked)
-      .attr('stroke', isBookmarked ? '#FFD700' : '#ffffff50')
-      .attr('stroke-width', isBookmarked ? 3 : 2);
-  }
-  
-  // Aktualisiert das Aussehen aller gemerkten Knoten
-  updateAllBookmarkedNodes() {
-    this.g.selectAll('.node-group')
-      .each((d) => {
-        const isBookmarked = this.isNodeBookmarked(d.id);
-        this.updateNodeAppearance(d.id, isBookmarked);
-      });
-  }
-
-  /**
-   * Gibt alle direkt verbundenen Knoten eines Knotens zurück
-   * @param {Object} node - Der Knoten, für den die Verbindungen gesucht werden
-   * @returns {Array} Array der verbundenen Knotenobjekte
-   */
-  getConnectedNodes(node) {
-    if (!node || !this.links || !this.nodes) return [];
-    const nodeId = node.id;
-    const connectedIds = new Set();
-    this.links.forEach(link => {
-      if (link.source === nodeId || (link.source && link.source.id === nodeId)) {
-        connectedIds.add(link.target.id ? link.target.id : link.target);
-      }
-      if (link.target === nodeId || (link.target && link.target.id === nodeId)) {
-        connectedIds.add(link.source.id ? link.source.id : link.source);
-      }
-    });
-    return this.nodes.filter(n => connectedIds.has(n.id));
-  }
-}
-
-// Exportiere die Klasse für die Verwendung in anderen Modulen
-window.MindMapVisualization = MindMapVisualization; 

static/neural-network-background-full.js

@@ -18,11 +18,11 @@ class NeuralNetworkBackground {
     
     // Standardkonfiguration mit subtileren Werten
     this.config = {
-      nodeCount: 50,            // Weniger Knoten
+      nodeCount: 10,            // Weniger Knoten
       nodeSize: 1.2,            // Kleinere Knoten
       connectionDistance: 150,  // Reduzierte Verbindungsdistanz
       connectionOpacity: 0.3,   // Sanftere Verbindungslinien
-      clusterCount: 2,          // Weniger Cluster
+      clusterCount: 7,          // Weniger Cluster
       clusterRadius: 380,       // Größerer Cluster-Radius für mehr Verteilung
       animationSpeed: 0.25,     // Langsamere Animation
       flowDensity: 0.05,        // Deutlich weniger Flussanimationen
@@ -1106,4 +1106,66 @@ window.addEventListener('beforeunload', () => {
   if (window.neuralNetworkBackground) {
     window.neuralNetworkBackground.destroy();
   }
-}); 
+});
+
+function applyNeuralNetworkStyle(cy) {
+    cy.style()
+        .selector('node')
+        .style({
+            'label': 'data(label)',
+            'text-valign': 'center',
+            'text-halign': 'center',
+            'color': 'data(fontColor)',
+            'text-outline-width': 2,
+            'text-outline-color': 'rgba(0,0,0,0.8)',
+            'text-outline-opacity': 0.9,
+            'font-size': 'data(fontSize)',
+            'font-weight': '500',
+            'text-margin-y': 8,
+            'width': function(ele) {
+                if (ele.data('isCenter')) return 120;
+                return ele.data('neuronSize') ? ele.data('neuronSize') * 10 : 80;
+            },
+            'height': function(ele) {
+                if (ele.data('isCenter')) return 120;
+                return ele.data('neuronSize') ? ele.data('neuronSize') * 10 : 80;
+            },
+            'background-color': 'data(color)',
+            'background-opacity': 0.9,
+            'border-width': 2,
+            'border-color': '#ffffff',
+            'border-opacity': 0.8,
+            'shape': 'ellipse',
+            'transition-property': 'background-color, background-opacity, border-width',
+            'transition-duration': '0.3s',
+            'transition-timing-function': 'ease-in-out'
+        })
+        .selector('edge')
+        .style({
+            'width': function(ele) {
+                return ele.data('strength') ? ele.data('strength') * 3 : 1;
+            },
+            'curve-style': 'bezier',
+            'line-color': function(ele) {
+                const sourceColor = ele.source().data('color');
+                return sourceColor || '#8a8aaa';
+            },
+            'line-opacity': function(ele) {
+                return ele.data('strength') ? ele.data('strength') * 0.8 : 0.4;
+            },
+            'line-style': function(ele) {
+                const strength = ele.data('strength');
+                if (!strength) return 'solid';
+                if (strength <= 0.4) return 'dotted';
+                if (strength <= 0.6) return 'dashed';
+                return 'solid';
+            },
+            'target-arrow-shape': 'none',
+            'source-endpoint': '0% 50%',
+            'target-endpoint': '100% 50%',
+            'transition-property': 'line-opacity, width',
+            'transition-duration': '0.3s',
+            'transition-timing-function': 'ease-in-out'
+        })
+        .update();
+} 

templates/admin/update_database.html

@@ -0,0 +1,46 @@
+{% extends "base.html" %}
+
+{% block title %}Datenbank aktualisieren{% endblock %}
+
+{% block content %}
+<div class="container mx-auto px-4 py-10">
+  <div class="bg-gray-800 bg-opacity-70 rounded-lg p-6 mb-6">
+    <h1 class="text-2xl font-bold text-purple-400 mb-4">Datenbank aktualisieren</h1>
+    
+    {% if message %}
+      <div class="mb-6 p-4 rounded-lg {{ 'bg-green-800 bg-opacity-50' if success else 'bg-red-800 bg-opacity-50' }}">
+        <p class="text-white">{{ message }}</p>
+      </div>
+    {% endif %}
+    
+    <div class="mb-6">
+      <p class="text-gray-300 mb-4">
+        Diese Funktion aktualisiert die Datenbankstruktur, um mit dem aktuellen Datenmodell kompatibel zu sein.
+        Dabei werden folgende Änderungen vorgenommen:
+      </p>
+      
+      <ul class="list-disc pl-6 text-gray-300 mb-6">
+        <li>Hinzufügen von <code>bio</code>, <code>location</code>, <code>website</code>, <code>avatar</code> und <code>last_login</code> zur Benutzer-Tabelle</li>
+      </ul>
+      
+      <div class="bg-yellow-800 bg-opacity-30 p-4 rounded-lg mb-6">
+        <p class="text-yellow-200">
+          <i class="fas fa-exclamation-triangle mr-2"></i>
+          <strong>Warnung:</strong> Bitte stelle sicher, dass du ein Backup der Datenbank erstellt hast, bevor du fortfährst.
+        </p>
+      </div>
+    </div>
+    
+    <form method="POST" action="{{ url_for('admin_update_database') }}">
+      <div class="flex justify-between">
+        <a href="{{ url_for('index') }}" class="px-4 py-2 bg-gray-700 text-white rounded-lg hover:bg-gray-600">
+          Zurück zur Startseite
+        </a>
+        <button type="submit" class="px-4 py-2 bg-purple-700 text-white rounded-lg hover:bg-purple-600">
+          Datenbank aktualisieren
+        </button>
+      </div>
+    </form>
+  </div>
+</div>
+{% endblock %} 

templates/base.html

@@ -6,8 +6,7 @@
     <title>Systades - {% block title %}{% endblock %}</title>
     
     <!-- Favicon -->
-    <link rel="icon" href="{{ url_for('static', filename='img/favicon.svg') }}" type="image/svg+xml">
+    <link rel="icon" href="{{ url_for('static', filename='img/neuron-favicon.svg') }}" type="image/svg+xml">
-    <link rel="icon" href="{{ url_for('static', filename='img/favicon.ico') }}" sizes="any">
     
     <!-- Meta Tags -->
     <meta name="description" content="Eine interaktive Plattform zum Visualisieren, Erforschen und Teilen von Wissen">
@@ -59,6 +58,20 @@
                 800: '#0e1220',
                 900: '#0a0e19'
               }
+            },
+            keyframes: {
+              float: {
+                '0%, 100%': { transform: 'translateY(0)' },
+                '50%': { transform: 'translateY(-5px)' }
+              },
+              'bounce-slow': {
+                '0%, 100%': { transform: 'translateY(0)' },
+                '50%': { transform: 'translateY(-8px)' }
+              }
+            },
+            animation: {
+              float: 'float 3s ease-in-out infinite',
+              'bounce-slow': 'bounce-slow 2s ease-in-out infinite'
             }
           }
         }
@@ -69,8 +82,8 @@
     <link href="{{ url_for('static', filename='fonts/inter.css') }}" rel="stylesheet">
     <link href="{{ url_for('static', filename='fonts/jetbrains-mono.css') }}" rel="stylesheet">
     
-    <!-- Icons - Self-hosted Font Awesome -->
+    <!-- Font Awesome vom CDN -->
-    <link href="{{ url_for('static', filename='css/all.min.css') }}" rel="stylesheet">
+    <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.1/css/all.min.css" rel="stylesheet">
     
     <!-- Assistent CSS -->
     <link href="{{ url_for('static', filename='css/assistant.css') }}" rel="stylesheet">
@@ -87,6 +100,9 @@
     <!-- Neural Network Background CSS -->
     <link href="{{ url_for('static', filename='css/neural-network-background.css') }}" rel="stylesheet">
 
+    <!-- Mindmap CSS -->
+    <link href="{{ url_for('static', filename='css/mindmap.css', v='1.0.1') }}" rel="stylesheet">
+
     <!-- D3.js für Visualisierungen -->
     <script src="https://d3js.org/d3.v7.min.js"></script>
     
@@ -95,12 +111,6 @@
     
     <!-- ChatGPT Assistant -->
     <script src="{{ url_for('static', filename='js/modules/chatgpt-assistant.js') }}"></script>
-    
-    <!-- MindMap Visualization Module -->
-    <script src="{{ url_for('static', filename='js/modules/mindmap.js') }}"></script>
-
-    <!-- MindMap Page Module -->
-    <script src="{{ url_for('static', filename='js/modules/mindmap-page.js') }}"></script>
 
     <!-- Neural Network Background Script -->
     <script src="{{ url_for('static', filename='neural-network-background.js') }}"></script>
@@ -111,18 +121,20 @@
     <!-- Seitenspezifische Styles -->
     {% block extra_css %}{% endblock %}
     
-    <!-- Custom dark mode styles -->
+    <!-- Custom dark/light mode styles -->
     <!-- ► ►  Farb‑Token strikt getrennt  ◄ ◄ -->
     <style>
         /* Light‑Mode */
         :root {
-          --bg-primary:#f4f6fa;
+          --bg-primary:#f8fafc;
-          --bg-secondary:#e9ecf3;
+          --bg-secondary:#f1f5f9;
           --text-primary:#232837;
           --text-secondary:#475569;
           --accent-primary:#7c3aed;
           --accent-secondary:#8b5cf6;
           --glow-effect:0 0 8px rgba(139,92,246,.08);
+          background-image: linear-gradient(to bottom right, rgba(248, 250, 252, 0.8), rgba(241, 245, 249, 0.8));
+          background-attachment: fixed;
         }
         /* Dark‑Mode */
         .dark {
@@ -136,7 +148,8 @@
         }
   
         body {
-          @apply min-h-screen bg-[color:var(--bg-primary)] text-[color:var(--text-primary)] transition-colors duration-300;
+          @apply min-h-screen bg-[color:var(--bg-primary)] text-[color:var(--text-primary)];
+          transition: background-color 0.5s ease-in-out, color 0.3s ease-in-out, background-image 0.5s ease-in-out;
         }
   
         /* Utilities */
@@ -149,6 +162,151 @@
         .glass-navbar { @apply glass-morphism border backdrop-blur-xl; }
         .light .glass-navbar { background-color:rgba(255,255,255,.8); border-color:rgba(0,0,0,.05); }
         .dark .glass-navbar { background-color:rgba(10,14,25,.8); border-color:rgba(255,255,255,.05); }
+
+        /* Light-Mode spezifische Stile */
+        body:not(.dark) {
+          background-color: var(--bg-primary);
+          color: var(--text-primary);
+        }
+        
+        .nav-link-light {
+          color: var(--text-secondary);
+          transition: all 0.3s ease;
+        }
+        
+        .nav-link-light:hover {
+          color: var(--text-primary);
+          background-color: rgba(126, 34, 206, 0.1);
+        }
+        
+        .nav-link-light-active {
+          color: var(--accent-primary);
+          background-color: rgba(126, 34, 206, 0.15);
+          font-weight: 500;
+        }
+        
+        /* Kartendesign im Light-Mode */
+        body:not(.dark) .card {
+          background-color: white;
+          border: 1px solid #e5e7eb;
+          box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
+        }
+        
+        body:not(.dark) .card:hover {
+          box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
+        }
+
+        a:hover {
+            color: var(--light-primary-hover);
+        }
+
+        /* Light Mode Buttons */
+        body:not(.dark) .btn,
+        body:not(.dark) button:not(.toggle) {
+            background: linear-gradient(135deg, #7c3aed, #6d28d9);
+            color: white !important;
+            border: none;
+            box-shadow: 0 2px 4px rgba(124, 58, 237, 0.25);
+            border-radius: 8px;
+            padding: 0.625rem 1.25rem;
+            transition: all 0.2s ease;
+            font-weight: 600;
+            letter-spacing: 0.02em;
+            text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
+        }
+
+        body:not(.dark) .btn:hover,
+        body:not(.dark) button:not(.toggle):hover {
+            background: linear-gradient(135deg, #8b5cf6, #7c3aed);
+            transform: translateY(-1px);
+            box-shadow: 0 4px 12px rgba(124, 58, 237, 0.3);
+            color: white !important;
+        }
+        
+        /* KI-Chat Button im Light-Mode */
+        body:not(.dark) [onclick*="MindMap.assistant.toggleAssistant"] {
+            background: linear-gradient(135deg, #7c3aed, #4f46e5);
+            color: white !important;
+            font-weight: 500;
+            text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
+        }
+        
+        body:not(.dark) [onclick*="MindMap.assistant.toggleAssistant"]:hover {
+            background: linear-gradient(135deg, #8b5cf6, #6366f1);
+            box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
+        }
+
+        /* Style improvements for the theme toggle button */
+        .theme-toggle {
+          position: relative;
+          width: 48px;
+          height: 24px;
+          border-radius: 24px;
+          padding: 2px;
+          cursor: pointer;
+          transition: all 0.3s ease;
+          overflow: hidden;
+        }
+        
+        body.dark .theme-toggle {
+          background: linear-gradient(to right, #7c3aed, #3b82f6);
+          box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.3), 0 0 10px rgba(124, 58, 237, 0.3);
+          border: 1px solid rgba(255, 255, 255, 0.1);
+        }
+        
+        body:not(.dark) .theme-toggle {
+          background: linear-gradient(to right, #8b5cf6, #60a5fa);
+          box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1), 0 0 10px rgba(124, 58, 237, 0.15);
+          border: 1px solid rgba(0, 0, 0, 0.05);
+        }
+        
+        .theme-toggle::after {
+          content: '';
+          position: absolute;
+          width: 20px;
+          height: 20px;
+          border-radius: 50%;
+          top: 2px;
+          transition: all 0.3s ease;
+          z-index: 2;
+        }
+        
+        body.dark .theme-toggle::after {
+          background: #f1f5f9 url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%237c3aed' width='14' height='14'%3E%3Cpath d='M21.752 15.002A9.718 9.718 0 0118 15.75c-5.385 0-9.75-4.365-9.75-9.75 0-1.33.266-2.597.748-3.752A9.753 9.753 0 003 11.25C3 16.635 7.365 21 12.75 21a9.753 9.753 0 009.002-5.998z'%3E%3C/path%3E%3C/svg%3E") no-repeat center center;
+          transform: translateX(24px);
+          box-shadow: 0 0 5px rgba(0, 0, 0, 0.2);
+        }
+        
+        body:not(.dark) .theme-toggle::after {
+          background: #fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23f59e0b' width='14' height='14'%3E%3Cpath d='M12 2.25a.75.75 0 01.75.75v2.25a.75.75 0 01-1.5 0V3a.75.75 0 01.75-.75zM7.5 12a4.5 4.5 0 119 0 4.5 4.5 0 01-9 0zM18.894 6.166a.75.75 0 00-1.06-1.06l-1.591 1.59a.75.75 0 101.06 1.061l1.591-1.59zM21.75 12a.75.75 0 01-.75.75h-2.25a.75.75 0 010-1.5H21a.75.75 0 01.75.75zM17.834 18.894a.75.75 0 001.06-1.06l-1.59-1.591a.75.75 0 10-1.061 1.06l1.59 1.591zM12 18a.75.75 0 01.75.75V21a.75.75 0 01-1.5 0v-2.25A.75.75 0 0112 18zM7.758 17.303a.75.75 0 00-1.061-1.06l-1.591 1.59a.75.75 0 001.06 1.061l1.591-1.59zM6 12a.75.75 0 01-.75.75H3a.75.75 0 010-1.5h2.25A.75.75 0 016 12zM6.697 7.757a.75.75 0 001.06-1.06l-1.59-1.591a.75.75 0 00-1.061 1.06l1.59 1.591z'%3E%3C/path%3E%3C/svg%3E") no-repeat center center;
+          transform: translateX(2px);
+          box-shadow: 0 0 8px rgba(124, 58, 237, 0.2);
+        }
+        
+        .theme-toggle:hover::after {
+          box-shadow: 0 0 12px rgba(124, 58, 237, 0.4);
+        }
+        
+        /* Fixes for light mode button text colors */
+        body:not(.dark) .btn-primary {
+          color: white !important;
+        }
+        
+        /* Fix for KI-Chat container */
+        #chatgpt-assistant {
+          position: fixed;
+          bottom: 1.5rem;
+          right: 1.5rem;
+          z-index: 100;
+        }
+        
+        .chat-assistant {
+          max-height: 80vh !important;
+        }
+        
+        .chat-assistant .chat-messages {
+          max-height: calc(80vh - 160px) !important;
+        }
       </style>
 </head>
 <body data-page="{{ request.endpoint }}" class="relative overflow-x-hidden dark bg-gray-900 text-white" x-data="{ 
@@ -158,6 +316,17 @@
     showSettingsModal: false,
     
     init() {
+        this.initDarkMode();
+    },
+    
+    initDarkMode() {
+        // Lade zuerst den Wert aus dem localStorage (client-seitig)
+        const storedMode = localStorage.getItem('colorMode');
+        if (storedMode) {
+            this.darkMode = storedMode === 'dark';
+        }
+        
+        // Dann hole die Server-Einstellung, die Vorrang hat
         this.fetchDarkModeFromSession();
     },
     
@@ -167,7 +336,7 @@
             .then(data => {
                 if (data.success) {
                     this.darkMode = data.darkMode === 'true';
-                    document.querySelector('html').classList.toggle('dark', this.darkMode);
+                    this.applyDarkMode();
                 }
             })
             .catch(error => {
@@ -175,10 +344,17 @@
             });
     },
     
+    applyDarkMode() {
+        document.querySelector('html').classList.toggle('dark', this.darkMode);
+        document.querySelector('body').classList.toggle('dark', this.darkMode);
+        localStorage.setItem('colorMode', this.darkMode ? 'dark' : 'light');
+    },
+    
     toggleDarkMode() {
         this.darkMode = !this.darkMode;
-        document.querySelector('html').classList.toggle('dark', this.darkMode);
+        this.applyDarkMode();
         
+        // Server über Änderung informieren
         fetch('/api/set_dark_mode', {
             method: 'POST',
             headers: {
@@ -189,12 +365,10 @@
         .then(response => response.json())
         .then(data => {
             if (data.success) {
-                localStorage.setItem('darkMode', this.darkMode ? 'dark' : 'light');
+                // Event auslösen für andere Komponenten
                 document.dispatchEvent(new CustomEvent('darkModeToggled', { 
                     detail: { isDark: this.darkMode } 
                 }));
-            } else {
-                console.error('Fehler beim Speichern der Dark Mode-Einstellung:', data.error);
             }
         })
         .catch(error => {
@@ -210,6 +384,7 @@
             <div class="container mx-auto flex justify-between items-center">
                 <!-- Logo -->
                 <a href="{{ url_for('index') }}" class="flex items-center group">
+                    <img src="{{ url_for('static', filename='img/neuron-logo.svg') }}" alt="Systades Logo" class="w-8 h-8 mr-2 transform transition-transform group-hover:scale-110">
                     <span class="text-2xl font-bold gradient-text transform transition-transform group-hover:scale-105">Systades</span>
                 </a>
 
@@ -241,7 +416,7 @@
                        class="nav-link flex items-center" 
                        x-bind:class="darkMode 
                        ? 'bg-gradient-to-r from-purple-900/90 to-indigo-800/90 text-white font-medium px-4 py-2 rounded-xl hover:shadow-lg hover:shadow-purple-800/30 transition-all duration-300'
-                       : 'bg-gradient-to-r from-purple-600/30 to-indigo-500/30 text-gray-800 font-medium px-4 py-2 rounded-xl hover:shadow-md transition-all duration-300'">
+                       : 'bg-gradient-to-r from-purple-600 to-indigo-500 text-white font-medium px-4 py-2 rounded-xl hover:shadow-md transition-all duration-300'">
                         <i class="fa-solid fa-robot mr-2"></i>KI-Chat
                     </button>
                     {% if current_user.is_authenticated %}
@@ -257,25 +432,14 @@
 
                 <!-- Rechte Seite -->
                 <div class="flex items-center space-x-4">
-                    <!-- Dark Mode Toggle Switch -->
+                    <!-- Dark/Light Mode Schalter -->
-                    <div class="flex items-center cursor-pointer" @click="toggleDarkMode">
+                    <button
-                        <div class="relative w-12 h-6">
+                        @click="toggleDarkMode()"
-                            <input type="checkbox" id="darkModeToggle" class="sr-only" x-model="darkMode">
+                        class="theme-toggle relative w-12 h-6 rounded-full transition-all duration-300 flex items-center overflow-hidden"
-                            <div class="block w-12 h-6 rounded-full transition-colors duration-300"
+                        aria-label="Dark Mode umschalten"
-                                 x-bind:class="darkMode ? 'bg-purple-800/50' : 'bg-gray-400/50'"></div>
+                    >
-                            <div class="dot absolute left-1 top-1 w-4 h-4 rounded-full transition-transform duration-300 shadow-md"
+                        <span class="sr-only" x-text="darkMode ? 'Zum Light Mode wechseln' : 'Zum Dark Mode wechseln'"></span>
-                                 x-bind:class="darkMode ? 'bg-purple-600 transform translate-x-6' : 'bg-white'"></div>
+                    </button>
-                        </div>
-                        <div class="ml-3 hidden sm:block" 
-                             x-bind:class="darkMode ? 'text-white/90' : 'text-gray-700'">
-                            <span x-text="darkMode ? 'Dunkel' : 'Hell'"></span>
-                        </div>
-                        <div class="ml-2 sm:hidden" 
-                             x-bind:class="darkMode ? 'text-white/90' : 'text-gray-700'">
-                            <i class="fa-solid" :class="darkMode ? 'fa-sun' : 'fa-moon'"></i>
-                        </div>
-                    </div>
-
                     <!-- Profil-Link oder Login -->
                     {% if current_user.is_authenticated %}
                     <div class="relative" x-data="{ open: false }">
@@ -289,12 +453,21 @@
                                 {% if current_user.avatar %}
                                 <img src="{{ current_user.avatar }}" alt="{{ current_user.username }}" class="w-full h-full object-cover">
                                 {% else %}
-                                {{ current_user.username[0].upper() }}
+                                <svg width="100%" height="100%" viewBox="0 0 200 200" fill="none" xmlns="http://www.w3.org/2000/svg">
+                                  <circle cx="100" cy="100" r="98" fill="url(#user-gradient)" stroke="#7C3AED" stroke-width="4"/>
+                                  <circle cx="100" cy="80" r="36" fill="white"/>
+                                  <path d="M100 140C77.9086 140 60 157.909 60 180H140C140 157.909 122.091 140 100 140Z" fill="white"/>
+                                  <defs>
+                                    <linearGradient id="user-gradient" x1="0" y1="0" x2="200" y2="200" gradientUnits="userSpaceOnUse">
+                                      <stop offset="0" stop-color="#8B5CF6"/>
+                                      <stop offset="1" stop-color="#3B82F6"/>
+                                    </linearGradient>
+                                  </defs>
+                                </svg>
                                 {% endif %}
                             </div>
-                            <span class="text-sm hidden lg:block">{{ current_user.username }}</span>
+                            <span class="hidden md:block">{{ current_user.username }}</span>
-                            <i class="fa-solid fa-chevron-down text-xs hidden lg:block transition-transform duration-200"
+                            <i class="fas fa-chevron-down text-xs opacity-60 ml-1.5"></i>
-                               x-bind:class="open ? 'transform rotate-180' : ''"></i>
                         </button>
 
                         <!-- Dropdown-Menü -->
@@ -412,7 +585,7 @@
                    class="block w-full text-left py-3.5 px-4 rounded-xl transition-all duration-200 flex items-center"
                    x-bind:class="darkMode 
                    ? 'bg-gradient-to-r from-purple-600/30 to-blue-500/30 text-white hover:from-purple-600/40 hover:to-blue-500/40' 
-                   : 'bg-gradient-to-r from-purple-500/10 to-blue-400/10 text-gray-900 hover:from-purple-500/20 hover:to-blue-400/20'">
+                   : 'bg-gradient-to-r from-purple-600 to-blue-500 text-white hover:from-purple-600/90 hover:to-blue-500/90'">
                     <i class="fa-solid fa-robot w-5 mr-3"></i>KI-Chat
                 </button>
                 {% if current_user.is_authenticated %}
@@ -478,6 +651,10 @@
                                :class="darkMode ? 'text-gray-300 hover:text-white' : 'text-gray-600 hover:text-gray-900'">
                                 Mindmap
                             </a>
+                            <a href="{{ url_for('search_thoughts_page') }}" class="text-sm transition-all duration-200"
+                               :class="darkMode ? 'text-gray-300 hover:text-white' : 'text-gray-600 hover:text-gray-900'">
+                                Suche
+                            </a>
                             {% if current_user.is_authenticated %}
                             <a href="{{ url_for('profile') }}" class="text-sm transition-all duration-200"
                                :class="darkMode ? 'text-gray-300 hover:text-white' : 'text-gray-600 hover:text-gray-900'">
@@ -557,58 +734,286 @@
     
     <!-- Hilfsscripts -->
     {% block scripts %}{% endblock %}
+    {% block extra_js %}{% endblock %}
     
-    <!-- KI-Chat Initialisierung -->
+    <!-- ChatGPT Initialisierung -->
     <script>
-        // Initialisiere den ChatGPT-Assistenten direkt, um sicherzustellen,
+        // Prüfe, ob ChatGPTAssistant bereits existiert
-        // dass er auf jeder Seite verfügbar ist, selbst wenn MindMap nicht geladen ist
+        if (typeof ChatGPTAssistant === 'undefined') {
-        document.addEventListener('DOMContentLoaded', function() {
+            class ChatGPTAssistant {
-            // Prüfen, ob der Assistent bereits durch MindMap initialisiert wurde
+                constructor() {
-            if (!window.MindMap || !window.MindMap.assistant) {
+                    this.chatContainer = null;
-                console.log('KI-Assistent wird direkt initialisiert...');
+                    this.messages = [];
-                const assistant = new ChatGPTAssistant();
+                    this.isOpen = false;
-                assistant.init();
+                }
-                
+                
-                // Speichere in window.MindMap, falls es existiert, oder erstelle es
+                init() {
-                if (!window.MindMap) {
+                    // Chat-Container erstellen, falls noch nicht vorhanden
-                    window.MindMap = {};
+                    if (!document.getElementById('chat-assistant-container')) {
+                        this.createChatInterface();
+                    }
+                    
+                    // Event-Listener für Chat-Button
+                    const chatButton = document.getElementById('chat-assistant-button');
+                    if (chatButton) {
+                        chatButton.addEventListener('click', () => this.toggleChat());
+                    }
+                    
+                    // Event-Listener für Senden-Button
+                    const sendButton = document.getElementById('chat-send-button');
+                    if (sendButton) {
+                        sendButton.addEventListener('click', () => this.sendMessage());
+                    }
+                    
+                    // Event-Listener für Eingabefeld (Enter-Taste)
+                    const inputField = document.getElementById('chat-input');
+                    if (inputField) {
+                        inputField.addEventListener('keypress', (e) => {
+                            if (e.key === 'Enter') {
+                                e.preventDefault();
+                                this.sendMessage();
+                            }
+                        });
+                    }
+                    
+                    console.log('KI-Assistent erfolgreich initialisiert');
+                }
+                
+                createChatInterface() {
+                    // Chat-Button erstellen
+                    const chatButton = document.createElement('button');
+                    chatButton.id = 'chat-assistant-button';
+                    chatButton.className = 'fixed bottom-6 right-6 bg-primary-600 text-white rounded-full p-4 shadow-lg z-50 hover:bg-primary-700 transition-all';
+                    chatButton.innerHTML = '<i class="fas fa-robot text-xl"></i>';
+                    document.body.appendChild(chatButton);
+                    
+                    // Chat-Container erstellen
+                    const chatContainer = document.createElement('div');
+                    chatContainer.id = 'chat-assistant-container';
+                    chatContainer.className = 'fixed bottom-24 right-6 w-80 md:w-96 bg-white dark:bg-gray-800 rounded-xl shadow-xl z-50 flex flex-col transition-all duration-300 transform scale-0 origin-bottom-right';
+                    chatContainer.style.height = '500px';
+                    chatContainer.style.maxHeight = '70vh';
+                    
+                    // Chat-Header
+                    chatContainer.innerHTML = `
+                        <div class="p-4 border-b dark:border-gray-700 flex justify-between items-center">
+                            <h3 class="font-bold text-gray-800 dark:text-white">Systades Assistent</h3>
+                            <button id="chat-close-button" class="text-gray-500 hover:text-gray-700 dark:text-gray-400 dark:hover:text-gray-200">
+                                <i class="fas fa-times"></i>
+                            </button>
+                        </div>
+                        <div id="chat-messages" class="flex-1 overflow-y-auto p-4 space-y-4"></div>
+                        <div class="p-4 border-t dark:border-gray-700">
+                            <div class="flex space-x-2">
+                                <input id="chat-input" type="text" placeholder="Frage stellen..." class="flex-1 px-4 py-2 rounded-lg border dark:border-gray-700 dark:bg-gray-700 dark:text-white focus:outline-none focus:ring-2 focus:ring-primary-500">
+                                <button id="chat-send-button" class="bg-primary-600 text-white px-4 py-2 rounded-lg hover:bg-primary-700 transition-all">
+                                    <i class="fas fa-paper-plane"></i>
+                                </button>
+                            </div>
+                        </div>
+                    `;
+                    
+                    document.body.appendChild(chatContainer);
+                    this.chatContainer = chatContainer;
+                    
+                    // Event-Listener für Schließen-Button
+                    const closeButton = document.getElementById('chat-close-button');
+                    if (closeButton) {
+                        closeButton.addEventListener('click', () => this.toggleChat());
+                    }
+                }
+                
+                toggleChat() {
+                    this.isOpen = !this.isOpen;
+                    if (this.isOpen) {
+                        this.chatContainer.classList.remove('scale-0');
+                        this.chatContainer.classList.add('scale-100');
+                    } else {
+                        this.chatContainer.classList.remove('scale-100');
+                        this.chatContainer.classList.add('scale-0');
+                    }
+                }
+                
+                async sendMessage() {
+                    const inputField = document.getElementById('chat-input');
+                    const messageText = inputField.value.trim();
+                    
+                    if (!messageText) return;
+                    
+                    // Benutzer-Nachricht anzeigen
+                    this.addMessage('user', messageText);
+                    inputField.value = '';
+                    
+                    // Lade-Indikator anzeigen
+                    this.addMessage('assistant', '...', 'loading-message');
+                    
+                    try {
+                        // API-Anfrage senden
+                        const response = await fetch('/api/assistant', {
+                            method: 'POST',
+                            headers: {
+                                'Content-Type': 'application/json'
+                            },
+                            body: JSON.stringify({
+                                messages: this.messages.map(msg => ({
+                                    role: msg.role,
+                                    content: msg.content
+                                }))
+                            })
+                        });
+                        
+                        const data = await response.json();
+                        
+                        // Lade-Nachricht entfernen
+                        const loadingMessage = document.getElementById('loading-message');
+                        if (loadingMessage) {
+                            loadingMessage.remove();
+                        }
+                        
+                        if (data.error) {
+                            this.addMessage('assistant', 'Entschuldigung, es ist ein Fehler aufgetreten: ' + data.error);
+                        } else {
+                            this.addMessage('assistant', data.response);
+                        }
+                    } catch (error) {
+                        console.error('Fehler bei der API-Anfrage:', error);
+                        
+                        // Lade-Nachricht entfernen
+                        const loadingMessage = document.getElementById('loading-message');
+                        if (loadingMessage) {
+                            loadingMessage.remove();
+                        }
+                        
+                        this.addMessage('assistant', 'Entschuldigung, es ist ein Fehler aufgetreten. Bitte versuche es später erneut.');
+                    }
+                }
+                
+                addMessage(role, content, id = null) {
+                    const messagesContainer = document.getElementById('chat-messages');
+                    
+                    // Nachricht zum Array hinzufügen (außer Lade-Nachrichten)
+                    if (id !== 'loading-message') {
+                        this.messages.push({ role, content });
+                    }
+                    
+                    // Nachricht zum DOM hinzufügen
+                    const messageElement = document.createElement('div');
+                    messageElement.className = `p-3 rounded-lg ${role === 'user' ? 'bg-primary-100 dark:bg-primary-900/30 ml-6' : 'bg-gray-100 dark:bg-gray-700 mr-6'}`;
+                    if (id) {
+                        messageElement.id = id;
+                    }
+                    
+                    messageElement.innerHTML = `
+                        <div class="flex items-start">
+                            <div class="w-8 h-8 rounded-full flex items-center justify-center ${role === 'user' ? 'bg-primary-600' : 'bg-gray-600'} text-white mr-2">
+                                <i class="fas ${role === 'user' ? 'fa-user' : 'fa-robot'} text-xs"></i>
+                            </div>
+                            <div class="flex-1 text-sm ${role === 'user' ? 'text-gray-800 dark:text-gray-200' : 'text-gray-700 dark:text-gray-300'}">
+                                ${content}
+                            </div>
+                        </div>
+                    `;
+                    
+                    messagesContainer.appendChild(messageElement);
+                    messagesContainer.scrollTop = messagesContainer.scrollHeight;
                 }
-                window.MindMap.assistant = assistant;
             }
-        });
+
+            // Initialisiere den ChatGPT-Assistenten direkt
+            document.addEventListener('DOMContentLoaded', function() {
+                // Prüfen, ob der Assistent bereits durch MindMap initialisiert wurde
+                if (!window.MindMap || !window.MindMap.assistant) {
+                    console.log('KI-Assistent wird direkt initialisiert...');
+                    const assistant = new ChatGPTAssistant();
+                    assistant.init();
+                    
+                    // Speichere in window.MindMap, falls es existiert, oder erstelle es
+                    if (!window.MindMap) {
+                        window.MindMap = {};
+                    }
+                    window.MindMap.assistant = assistant;
+                }
+            });
+        }
     </script>
 
-    <!-- Dark/Light-Mode persistent und robust -->
+    <!-- Dark/Light-Mode vereinheitlicht -->
     <script>
-      (function() {
+      // Globaler Zugriff für externe Skripte
-        function applyMode(mode) {
+      window.MindMap = window.MindMap || {};
-          if (mode === 'dark') {
+      
-            document.documentElement.classList.add('dark');
+      // Funktion zum Anwenden des Dark Mode, strikt getrennt
-            localStorage.setItem('colorMode', 'dark');
+      function applyDarkModeClasses(isDarkMode) {
-          } else {
+        if (isDarkMode) {
-            document.documentElement.classList.remove('dark');
+          document.documentElement.classList.add('dark');
-            localStorage.setItem('colorMode', 'light');
+          document.body.classList.add('dark');
-          }
+          localStorage.setItem('colorMode', 'dark');
-        }
-        // Beim Laden: Präferenz aus localStorage oder System übernehmen
-        const stored = localStorage.getItem('colorMode');
-        if (stored === 'dark' || stored === 'light') {
-          applyMode(stored);
         } else {
-          // Systempräferenz als Fallback
+          document.documentElement.classList.remove('dark');
-          const prefersDark = window.matchMedia('(prefers-color-scheme: dark)').matches;
+          document.body.classList.remove('dark');
-          applyMode(prefersDark ? 'dark' : 'light');
+          localStorage.setItem('colorMode', 'light');
         }
-        // Umschalter für alle Mode-Toggles
+        
-        window.toggleColorMode = function() {
+        // Alpine.js darkMode-Variable aktualisieren, falls zutreffend
-          const isDark = document.documentElement.classList.contains('dark');
+        const appEl = document.querySelector('body');
-          applyMode(isDark ? 'light' : 'dark');
+        if (appEl && appEl.__x) {
-        };
+          appEl.__x.$data.darkMode = isDarkMode;
-        // Optional: globales Event für andere Skripte
+        }
-        window.addEventListener('storage', function(e) {
+        
-          if (e.key === 'colorMode') applyMode(e.newValue);
+        // Event für andere Komponenten auslösen
+        document.dispatchEvent(new CustomEvent('darkModeToggled', { 
+          detail: { isDark: isDarkMode } 
+        }));
+      }
+      
+      window.MindMap.toggleDarkMode = function() {
+        const isDark = document.documentElement.classList.contains('dark');
+        const newIsDark = !isDark;
+        
+        // DOM aktualisieren
+        applyDarkModeClasses(newIsDark);
+        
+        // Server aktualisieren
+        fetch('/api/set_dark_mode', {
+          method: 'POST',
+          headers: { 'Content-Type': 'application/json' },
+          body: JSON.stringify({ darkMode: newIsDark })
+        })
+        .catch(console.error);
+      };
+      
+      // Initialisierung beim Laden
+      document.addEventListener('DOMContentLoaded', function() {
+        // Reihenfolge der Prüfungen: Serverseitige Einstellung > Lokale Einstellung > Browser-Präferenz
+        
+        // 1. Zuerst lokale Einstellung prüfen
+        const storedMode = localStorage.getItem('colorMode');
+        if (storedMode) {
+          applyDarkModeClasses(storedMode === 'dark');
+        } else {
+          // 2. Fallback auf Browser-Präferenz
+          const prefersDark = window.matchMedia('(prefers-color-scheme: dark)').matches;
+          applyDarkModeClasses(prefersDark);
+        }
+        
+        // 3. Serverseitige Einstellung abrufen und anwenden
+        fetch('/api/get_dark_mode')
+          .then(response => response.json())
+          .then(data => {
+            if (data.success) {
+              const serverDarkMode = data.darkMode === true || data.darkMode === 'true';
+              applyDarkModeClasses(serverDarkMode);
+            }
+          })
+          .catch(error => console.error('Fehler beim Abrufen des Dark Mode Status:', error));
+        
+        // Listener für Änderungen der Browser-Präferenz
+        window.matchMedia('(prefers-color-scheme: dark)').addEventListener('change', e => {
+          if (localStorage.getItem('colorMode') === null) {
+            applyDarkModeClasses(e.matches);
+          }
         });
-      })();
+      });
     </script>
 </body>
 </html> 

templates/community/category.html

@@ -0,0 +1,192 @@
+{% extends 'base.html' %}
+
+{% block title %}{{ category.title }} - Forum{% endblock %}
+
+{% block extra_css %}
+<style>
+  .thread-item {
+    transition: all 0.2s ease;
+  }
+  .thread-item:hover {
+    transform: translateX(2px);
+  }
+  .thread-pinned {
+    border-left-width: 4px;
+  }
+</style>
+{% endblock %}
+
+{% block content %}
+<div class="container mx-auto px-4 py-8">
+  <!-- Breadcrumb Navigation -->
+  <div class="mb-6 flex items-center text-sm">
+    <a href="{{ url_for('community') }}" class="opacity-75 hover:opacity-100 transition-opacity">
+      <i class="fas fa-home mr-1"></i> Forum
+    </a>
+    <span class="mx-2 opacity-50">/</span>
+    <span class="font-medium">{{ category.title }}</span>
+  </div>
+  
+  <!-- Kategorie-Header -->
+  <div class="mb-8 flex flex-wrap items-center justify-between gap-4">
+    <div class="flex items-center">
+      <!-- Kategorie-Icon -->
+      <div class="w-12 h-12 rounded-xl mr-4 flex items-center justify-center text-white" 
+           style="background-color: {{ node.color_code or '#6d28d9' }}">
+        <i class="fas {{ node.icon or 'fa-folder' }} text-2xl"></i>
+      </div>
+      
+      <!-- Kategorie-Info -->
+      <div>
+        <h1 class="text-2xl font-bold">{{ category.title }}</h1>
+        <p class="opacity-75">{{ category.description }}</p>
+      </div>
+    </div>
+    
+    <!-- Neues Thema erstellen -->
+    <a href="{{ url_for('new_post', category_id=category.id) }}" 
+       class="px-5 py-2.5 rounded-lg transition-all duration-300 flex items-center"
+       x-bind:class="darkMode 
+       ? 'bg-indigo-700 hover:bg-indigo-600 text-white' 
+       : 'bg-indigo-500 hover:bg-indigo-600 text-white'">
+      <i class="fas fa-plus-circle mr-2"></i>
+      Neues Thema
+    </a>
+  </div>
+  
+  <!-- Threads anzeigen -->
+  <div class="mb-8 rounded-xl overflow-hidden"
+       x-bind:class="darkMode ? 'bg-gray-800/60 border border-white/10' : 'bg-white border border-gray-200'">
+    
+    <!-- Header -->
+    <div class="p-4 border-b" x-bind:class="darkMode ? 'border-white/10' : 'border-gray-200'">
+      <div class="grid grid-cols-12 gap-4">
+        <div class="col-span-7 font-medium">Thema</div>
+        <div class="col-span-1 text-center font-medium hidden md:block">Antworten</div>
+        <div class="col-span-2 text-center font-medium hidden md:block">Autor</div>
+        <div class="col-span-2 text-center font-medium hidden md:block">Letzte Antwort</div>
+      </div>
+    </div>
+    
+    <!-- Thread-Liste -->
+    {% if threads_data %}
+      {% for thread_data in threads_data %}
+        {% set thread = thread_data.thread %}
+        <div class="thread-item p-4 border-b last:border-b-0 {{ 'thread-pinned' if thread.is_pinned }}" 
+             x-bind:class="darkMode 
+             ? 'border-white/10 hover:bg-gray-700/50 {{ 'border-l-yellow-500' if thread.is_pinned }}' 
+             : 'border-gray-200 hover:bg-gray-50 {{ 'border-l-yellow-500' if thread.is_pinned }}'">
+          <a href="{{ url_for('forum_post', post_id=thread.id) }}" class="block">
+            <div class="grid grid-cols-12 gap-4">
+              <!-- Thema -->
+              <div class="col-span-12 md:col-span-7">
+                <div class="flex items-start">
+                  <!-- Status-Icons -->
+                  <div class="flex flex-col items-center mr-3 pt-1">
+                    {% if thread.is_pinned %}
+                      <i class="fas fa-thumbtack text-yellow-500" title="Angepinnt"></i>
+                    {% endif %}
+                    {% if thread.is_locked %}
+                      <i class="fas fa-lock text-red-500 mt-1" title="Gesperrt"></i>
+                    {% endif %}
+                  </div>
+                  
+                  <!-- Themen-Info -->
+                  <div>
+                    <h3 class="font-medium leading-snug mb-1 {% if thread.is_locked %}opacity-70{% endif %}">
+                      {{ thread.title }}
+                    </h3>
+                    <div class="flex items-center text-xs opacity-70 mt-1">
+                      <span><i class="fas fa-eye mr-1"></i> {{ thread.view_count }}</span>
+                      <span class="mx-2 block md:hidden">•</span>
+                      <span class="block md:hidden"><i class="fas fa-reply mr-1"></i> {{ thread_data.reply_count }}</span>
+                      <span class="mx-2">•</span>
+                      <span><i class="fas fa-clock mr-1"></i> {{ thread.created_at.strftime('%d.%m.%Y, %H:%M') }}</span>
+                    </div>
+                  </div>
+                </div>
+              </div>
+              
+              <!-- Antworten -->
+              <div class="col-span-1 text-center hidden md:flex items-center justify-center">
+                <span class="px-2.5 py-1 rounded-full text-sm font-medium" 
+                     x-bind:class="darkMode 
+                     ? 'bg-indigo-900/40 text-indigo-300' 
+                     : 'bg-indigo-100 text-indigo-800'">
+                  {{ thread_data.reply_count }}
+                </span>
+              </div>
+              
+              <!-- Autor -->
+              <div class="col-span-2 text-center hidden md:flex items-center justify-center">
+                <div class="flex items-center">
+                  <div class="w-7 h-7 rounded-full flex items-center justify-center text-white text-xs font-medium overflow-hidden mr-2" 
+                       style="background: linear-gradient(135deg, #8b5cf6, #6366f1);">
+                    {% if thread.author.avatar %}
+                      <img src="{{ thread.author.avatar }}" alt="{{ thread.author.username }}" class="w-full h-full object-cover">
+                    {% else %}
+                      {{ thread.author.username[0].upper() }}
+                    {% endif %}
+                  </div>
+                  <span class="text-sm truncate max-w-[80px]">{{ thread.author.username }}</span>
+                </div>
+              </div>
+              
+              <!-- Letzte Antwort -->
+              <div class="col-span-2 text-center hidden md:block text-sm">
+                {% if thread_data.latest_reply %}
+                  <div>{{ thread_data.latest_reply.created_at.strftime('%d.%m.%Y') }}</div>
+                  <div class="opacity-75 text-xs">{{ thread_data.latest_reply.created_at.strftime('%H:%M') }} Uhr</div>
+                {% else %}
+                  <span class="opacity-60">Keine Antworten</span>
+                {% endif %}
+              </div>
+            </div>
+          </a>
+        </div>
+      {% endfor %}
+    {% else %}
+      <div class="p-8 text-center">
+        <div class="text-3xl mb-3 opacity-30"><i class="fas fa-comments"></i></div>
+        <h3 class="text-xl font-semibold mb-2">Keine Themen vorhanden</h3>
+        <p class="opacity-75 mb-4">In dieser Kategorie wurden noch keine Themen erstellt.</p>
+        <a href="{{ url_for('new_post', category_id=category.id) }}" 
+           class="inline-block px-5 py-2.5 rounded-lg transition-all duration-300"
+           x-bind:class="darkMode 
+           ? 'bg-indigo-700 hover:bg-indigo-600 text-white' 
+           : 'bg-indigo-500 hover:bg-indigo-600 text-white'">
+          <i class="fas fa-plus-circle mr-2"></i>
+          Erstes Thema erstellen
+        </a>
+      </div>
+    {% endif %}
+  </div>
+  
+  <!-- Link zur Mindmap -->
+  <div class="rounded-xl p-5 mb-4 flex items-center"
+       x-bind:class="darkMode ? 'bg-purple-900/20 border border-purple-800/30' : 'bg-purple-50 border border-purple-100'">
+    <div class="text-3xl mr-4 opacity-80">
+      <i class="fas fa-diagram-project" style="color: {{ node.color_code }}"></i>
+    </div>
+    <div>
+      <h3 class="font-medium mb-1">Mindmap-Knotenpunkt: {{ node.name }}</h3>
+      <p class="text-sm opacity-75">In der Mindmap findest du weitere Informationen zu diesem Themenbereich.</p>
+    </div>
+    <div class="ml-auto">
+      <a href="{{ url_for('mindmap') }}" 
+         class="px-4 py-2 rounded-lg inline-block text-sm transition-all"
+         x-bind:class="darkMode 
+         ? 'bg-purple-800/60 hover:bg-purple-700/60 text-white' 
+         : 'bg-white hover:bg-purple-100 text-purple-800 border border-purple-200'">
+        Zur Mindmap
+      </a>
+    </div>
+  </div>
+</div>
+{% endblock %}
+
+{% block scripts %}
+<script>
+  // Hier können bei Bedarf kategoriespezifische Scripts eingefügt werden
+</script>
+{% endblock %} 

templates/community/edit_post.html

@@ -0,0 +1,344 @@
+{% extends 'base.html' %}
+
+{% block title %}Beitrag bearbeiten{% endblock %}
+
+{% block extra_css %}
+<style>
+  .markdown-preview {
+    min-height: 200px;
+    max-height: 400px;
+    overflow-y: auto;
+    line-height: 1.6;
+  }
+  .markdown-preview p {
+    margin-bottom: 1rem;
+  }
+  .markdown-preview h1, .markdown-preview h2, .markdown-preview h3, 
+  .markdown-preview h4, .markdown-preview h5, .markdown-preview h6 {
+    margin-top: 1.5rem;
+    margin-bottom: 0.75rem;
+    font-weight: 600;
+  }
+  .markdown-preview h1 { font-size: 1.8rem; }
+  .markdown-preview h2 { font-size: 1.5rem; }
+  .markdown-preview h3 { font-size: 1.3rem; }
+  .markdown-preview h4 { font-size: 1.1rem; }
+  .markdown-preview ul, .markdown-preview ol {
+    margin-left: 1.5rem;
+    margin-bottom: 1rem;
+  }
+  .markdown-preview ul { list-style-type: disc; }
+  .markdown-preview ol { list-style-type: decimal; }
+  .markdown-preview pre {
+    background-color: rgba(0,0,0,0.05);
+    padding: 1rem;
+    border-radius: 0.5rem;
+    overflow-x: auto;
+    margin: 1rem 0;
+  }
+  .markdown-preview code {
+    font-family: 'JetBrains Mono', monospace;
+    font-size: 0.9em;
+    padding: 0.1em 0.3em;
+    border-radius: 0.3em;
+    background-color: rgba(0,0,0,0.05);
+  }
+  .markdown-preview pre code {
+    padding: 0;
+    background-color: transparent;
+  }
+  .markdown-preview blockquote {
+    border-left: 4px solid;
+    padding-left: 1rem;
+    margin-left: 0;
+    margin-right: 0;
+    margin-bottom: 1rem;
+    opacity: 0.8;
+  }
+  .dark .markdown-preview code {
+    background-color: rgba(255,255,255,0.1);
+  }
+  .dark .markdown-preview blockquote {
+    border-color: rgba(255,255,255,0.2);
+  }
+  .node-mention {
+    display: inline-flex;
+    align-items: center;
+    background-color: rgba(109, 40, 217, 0.1);
+    color: #6d28d9;
+    border-radius: 4px;
+    padding: 1px 6px;
+    font-size: 0.9em;
+    margin: 0 2px;
+    font-weight: 500;
+  }
+  .dark .node-mention {
+    background-color: rgba(167, 139, 250, 0.2);
+    color: #a78bfa;
+  }
+</style>
+{% endblock %}
+
+{% block content %}
+<div class="container mx-auto px-4 py-8">
+  <!-- Breadcrumb Navigation -->
+  <div class="mb-6 flex items-center text-sm">
+    <a href="{{ url_for('community') }}" class="opacity-75 hover:opacity-100 transition-opacity">
+      <i class="fas fa-home mr-1"></i> Forum
+    </a>
+    <span class="mx-2 opacity-50">/</span>
+    <a href="{{ url_for('forum_category', category_id=post.category_id) }}" class="opacity-75 hover:opacity-100 transition-opacity">
+      {{ post.category.title }}
+    </a>
+    <span class="mx-2 opacity-50">/</span>
+    {% if post.parent_id %}
+    <a href="{{ url_for('forum_post', post_id=post.parent_id) }}" class="opacity-75 hover:opacity-100 transition-opacity truncate max-w-[200px]">
+      {{ post.parent.title }}
+    </a>
+    <span class="mx-2 opacity-50">/</span>
+    {% endif %}
+    <span class="font-medium">Beitrag bearbeiten</span>
+  </div>
+  
+  <!-- Formular-Header -->
+  <div class="mb-6">
+    <h1 class="text-2xl font-bold mb-2">Beitrag bearbeiten</h1>
+    <p class="opacity-75">
+      {% if post.parent_id %}
+      Antwort auf <span class="font-medium">{{ post.parent.title }}</span>
+      {% else %}
+      in der Kategorie <span class="font-medium">{{ post.category.title }}</span>
+      {% endif %}
+    </p>
+  </div>
+  
+  <!-- Formular -->
+  <div class="mb-8 rounded-xl overflow-hidden"
+       x-bind:class="darkMode ? 'bg-gray-800/60 border border-white/10' : 'bg-white border border-gray-200'">
+    <div class="p-4 border-b font-medium" x-bind:class="darkMode ? 'border-white/10' : 'border-gray-200'">
+      <i class="fas fa-edit mr-2"></i>
+      Beitrag bearbeiten
+    </div>
+    <div class="p-6">
+      <form action="{{ url_for('edit_post', post_id=post.id) }}" method="POST" x-data="{ 
+        title: '{{ post.title|safe }}', 
+        content: '{{ post.content|replace('\n', '\\n')|replace('\'', '\\\'')|safe }}',
+        showPreview: false,
+        previewHtml: '',
+        
+        updatePreview() {
+          // Verarbeite den Inhalt
+          if (this.content.trim() === '') {
+            this.previewHtml = '<div class=\'opacity-50 italic\'>Die Vorschau wird hier angezeigt...</div>';
+            return;
+          }
+          
+          // Verarbeite Markdown
+          let html = marked.parse(this.content);
+          
+          // Ersetze @Knotenname mit entsprechenden Links
+          html = html.replace(/@([a-zA-Z0-9äöüÄÖÜß_-]+)/g, '<span class=\'node-mention\'><i class=\'fas fa-diagram-project fa-xs mr-1\'></i>$1</span>');
+          
+          this.previewHtml = html;
+        }
+      }">
+        <div class="mb-6">
+          <label for="title" class="block mb-2 font-medium">Titel</label>
+          <div class="rounded-lg overflow-hidden"
+               x-bind:class="darkMode ? 'border border-white/20' : 'border border-gray-300'">
+            <input type="text" id="title" name="title" 
+                  class="w-full px-4 py-3" 
+                  x-bind:class="darkMode 
+                  ? 'bg-gray-700/50 text-white placeholder-gray-400 focus:border-indigo-500' 
+                  : 'bg-white text-gray-700 placeholder-gray-400 focus:border-indigo-500'"
+                  x-model="title"
+                  required>
+          </div>
+        </div>
+        
+        <div class="mb-6">
+          <div class="flex justify-between items-center mb-2">
+            <label for="content" class="font-medium">Inhalt</label>
+            <div class="flex space-x-2">
+              <button type="button"
+                     class="px-3 py-1 rounded text-sm flex items-center"
+                     x-bind:class="darkMode 
+                     ? 'bg-gray-700 hover:bg-gray-600 text-white' 
+                     : 'bg-gray-200 hover:bg-gray-300 text-gray-700'"
+                     @click="showPreview = false"
+                     x-bind:disabled="!showPreview"
+                     x-bind:class="{'opacity-50': !showPreview}">
+                <i class="fas fa-edit mr-1"></i> Bearbeiten
+              </button>
+              <button type="button"
+                     class="px-3 py-1 rounded text-sm flex items-center"
+                     x-bind:class="darkMode 
+                     ? 'bg-gray-700 hover:bg-gray-600 text-white' 
+                     : 'bg-gray-200 hover:bg-gray-300 text-gray-700'"
+                     @click="updatePreview(); showPreview = true"
+                     x-bind:disabled="showPreview"
+                     x-bind:class="{'opacity-50': showPreview}">
+                <i class="fas fa-eye mr-1"></i> Vorschau
+              </button>
+            </div>
+          </div>
+          
+          <!-- Editor -->
+          <div class="rounded-lg overflow-hidden mb-2"
+               x-bind:class="darkMode ? 'border border-white/20' : 'border border-gray-300'"
+               x-show="!showPreview">
+            <textarea id="content" name="content" rows="12" 
+                     class="w-full p-3 resize-y"
+                     x-bind:class="darkMode 
+                     ? 'bg-gray-700/50 text-white placeholder-gray-400 focus:border-indigo-500' 
+                     : 'bg-white text-gray-700 placeholder-gray-400 focus:border-indigo-500'"
+                     x-model="content"
+                     required></textarea>
+          </div>
+          
+          <!-- Preview -->
+          <div class="rounded-lg overflow-hidden mb-2 p-4 markdown-preview"
+               x-bind:class="darkMode 
+               ? 'border border-white/20 bg-gray-700/30' 
+               : 'border border-gray-300 bg-gray-50'"
+               x-show="showPreview"
+               x-html="previewHtml">
+          </div>
+          
+          <!-- Markdown-Hilfsmittel -->
+          <div class="mb-4" x-show="!showPreview">
+            <div class="text-xs opacity-70">
+              <p>Du kannst Knotenpunkte der Mindmap durch <code>@Knotenname</code> verlinken.</p>
+              <p>Dieser Editor unterstützt Markdown-Formatierung:</p>
+              <div class="flex flex-wrap gap-2 mt-1">
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="**" data-before="" data-after="" title="Fett">
+                  <i class="fas fa-bold"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="*" data-before="" data-after="" title="Kursiv">
+                  <i class="fas fa-italic"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="`" data-before="" data-after="" title="Code">
+                  <i class="fas fa-code"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="[Link-Text](URL)" data-before="" data-after="" title="Link">
+                  <i class="fas fa-link"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="\n```\nCode-Block\n```" data-before="" data-after="" title="Code-Block">
+                  <i class="fas fa-file-code"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format=">" data-before="" data-after="" title="Zitat">
+                  <i class="fas fa-quote-right"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="- " data-before="" data-after="" title="Liste">
+                  <i class="fas fa-list-ul"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="1. " data-before="" data-after="" title="Nummerierte Liste">
+                  <i class="fas fa-list-ol"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="# " data-before="" data-after="" title="Überschrift">
+                  <i class="fas fa-heading"></i>
+                </button>
+              </div>
+            </div>
+          </div>
+        </div>
+        
+        <div class="flex justify-between items-center">
+          <a href="{{ url_for('forum_post', post_id=post.parent_id or post.id) }}" 
+             class="px-5 py-2.5 rounded-lg transition-all duration-300 flex items-center"
+             x-bind:class="darkMode 
+             ? 'bg-gray-700 hover:bg-gray-600 text-white' 
+             : 'bg-gray-200 hover:bg-gray-300 text-gray-700'">
+            Abbrechen
+          </a>
+          <button type="submit" 
+                 class="px-5 py-2.5 rounded-lg transition-all duration-300 flex items-center"
+                 x-bind:class="darkMode 
+                 ? 'bg-indigo-700 hover:bg-indigo-600 text-white' 
+                 : 'bg-indigo-500 hover:bg-indigo-600 text-white'">
+            <i class="fas fa-save mr-2"></i>
+            Änderungen speichern
+          </button>
+        </div>
+      </form>
+    </div>
+  </div>
+</div>
+{% endblock %}
+
+{% block scripts %}
+<script>
+  document.addEventListener('DOMContentLoaded', function() {
+    // Markdown-Buttons für den Beitragseditor
+    document.querySelectorAll('.markdown-button').forEach(button => {
+      button.addEventListener('click', function() {
+        const textarea = document.getElementById('content');
+        const format = this.dataset.format;
+        const before = this.dataset.before || '';
+        const after = this.dataset.after || '';
+        
+        // Hole die aktuelle Auswahl
+        const start = textarea.selectionStart;
+        const end = textarea.selectionEnd;
+        const selection = textarea.value.substring(start, end);
+        
+        // Wende die Formatierung an
+        let formattedText;
+        if (format.includes('\n')) {
+          // Für Formate mit Zeilenumbrüchen (z.B. Code-Blöcke)
+          formattedText = format.replace('Code-Block', selection || 'Code-Block');
+        } else if (format.includes('[Link-Text](URL)')) {
+          formattedText = format.replace('Link-Text', selection || 'Link-Text');
+        } else if (format === '- ' || format === '1. ' || format === '# ' || format === '> ') {
+          // Für Listen und Überschriften: am Anfang der Zeile einfügen
+          const beforeSelection = textarea.value.substring(0, start);
+          const afterSelection = textarea.value.substring(end);
+          
+          // Finde den Anfang der aktuellen Zeile
+          const lastNewline = beforeSelection.lastIndexOf('\n');
+          const lineStart = lastNewline === -1 ? 0 : lastNewline + 1;
+          
+          // Füge das Format am Zeilenanfang ein
+          formattedText = beforeSelection.substring(0, lineStart) + 
+                         format + 
+                         beforeSelection.substring(lineStart) + 
+                         selection + 
+                         afterSelection;
+          
+          // Setze die neue Cursor-Position
+          const newCursorPos = end + format.length;
+          textarea.value = formattedText;
+          textarea.setSelectionRange(newCursorPos, newCursorPos);
+          
+          // Alpine.js Model aktualisieren
+          textarea.dispatchEvent(new Event('input'));
+          return; // Früher zurückkehren, da wir die Formatierung bereits angewendet haben
+        } else {
+          // Für einfache Formatierungen wie fett, kursiv, Code
+          formattedText = before + format + selection + format + after;
+        }
+        
+        // Ersetze den Text
+        textarea.value = textarea.value.substring(0, start) + formattedText + textarea.value.substring(end);
+        
+        // Setze den Fokus zurück auf das Textarea
+        textarea.focus();
+        
+        // Alpine.js Model aktualisieren
+        textarea.dispatchEvent(new Event('input'));
+        
+        // Setze die Auswahl neu, wenn es eine Auswahl gab
+        if (selection) {
+          const newStart = start + before.length + format.length;
+          const newEnd = newStart + selection.length;
+          textarea.setSelectionRange(newStart, newEnd);
+        } else {
+          // Setze den Cursor in die Mitte von **|** oder `|`
+          const newCursorPos = start + before.length + format.length;
+          textarea.setSelectionRange(newCursorPos, newCursorPos);
+        }
+      });
+    });
+  });
+</script>
+{% endblock %} 

templates/community/index.html

@@ -0,0 +1,125 @@
+{% extends 'base.html' %}
+
+{% block title %}Community Forum{% endblock %}
+
+{% block extra_css %}
+<style>
+  .forum-category {
+    transition: all 0.3s ease;
+  }
+  .forum-category:hover {
+    transform: translateY(-2px);
+  }
+  .category-icon {
+    font-size: 1.5rem;
+    width: 2.5rem;
+    height: 2.5rem;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    border-radius: 0.75rem;
+  }
+</style>
+{% endblock %}
+
+{% block content %}
+<div class="container mx-auto px-4 py-8">
+  <!-- Seitenüberschrift -->
+  <div class="mb-8 text-center">
+    <h1 class="text-3xl font-bold mb-2 gradient-text">Community Forum</h1>
+    <p class="text-lg opacity-75">Diskutiere mit anderen Nutzern über die Hauptthemenbereiche der Mindmap</p>
+  </div>
+  
+  <!-- Forumskategorien -->
+  <div class="grid grid-cols-1 md:grid-cols-2 gap-6 mb-8">
+    {% if categories_data %}
+      {% for cat_data in categories_data %}
+        <a href="{{ url_for('forum_category', category_id=cat_data.category.id) }}" class="forum-category block">
+          <div class="rounded-xl p-5 h-full" 
+               x-bind:class="darkMode ? 'bg-gray-800/60 hover:bg-gray-800/80 border border-white/10' : 'bg-white hover:bg-gray-50 border border-gray-200 shadow-md'">
+            <div class="flex items-start">
+              <!-- Kategorie-Icon -->
+              <div class="category-icon mr-4 text-white" 
+                   style="background-color: {{ cat_data.category.node.color_code or '#6d28d9' }}">
+                <i class="fas {{ cat_data.category.node.icon or 'fa-folder' }}"></i>
+              </div>
+              
+              <!-- Kategorie-Info -->
+              <div class="flex-grow">
+                <h3 class="text-xl font-semibold mb-2">{{ cat_data.category.title }}</h3>
+                <p class="opacity-75 text-sm mb-3">{{ cat_data.category.description }}</p>
+                
+                <!-- Statistik -->
+                <div class="flex flex-wrap gap-4 text-sm opacity-80">
+                  <div class="flex items-center">
+                    <i class="fas fa-comment-alt mr-2"></i>
+                    <span>{{ cat_data.total_posts }} Themen</span>
+                  </div>
+                  <div class="flex items-center">
+                    <i class="fas fa-reply mr-2"></i>
+                    <span>{{ cat_data.total_replies }} Antworten</span>
+                  </div>
+                  {% if cat_data.latest_post %}
+                  <div class="flex items-center">
+                    <i class="fas fa-clock mr-2"></i>
+                    <span>Neuster Beitrag: {{ cat_data.latest_post.created_at.strftime('%d.%m.%Y, %H:%M') }}</span>
+                  </div>
+                  {% endif %}
+                </div>
+              </div>
+              
+              <!-- Pfeil-Icon -->
+              <div class="ml-2">
+                <i class="fas fa-chevron-right opacity-50"></i>
+              </div>
+            </div>
+          </div>
+        </a>
+      {% endfor %}
+    {% else %}
+      <div class="col-span-2 text-center py-8">
+        <div class="text-3xl mb-3 opacity-30"><i class="fas fa-exclamation-circle"></i></div>
+        <h3 class="text-xl font-semibold mb-2">Keine Forum-Kategorien gefunden</h3>
+        <p class="opacity-75">Es sind derzeit keine Kategorien für Diskussionen verfügbar.</p>
+      </div>
+    {% endif %}
+  </div>
+  
+  <!-- Hinweis zur Nutzung -->
+  <div class="rounded-xl p-6 text-center mb-8" 
+       x-bind:class="darkMode ? 'bg-indigo-900/30 border border-indigo-700/30' : 'bg-indigo-50 border border-indigo-100'">
+    <h3 class="text-xl font-semibold mb-3">
+      <i class="fas fa-lightbulb mr-2 text-yellow-500"></i>
+      So funktioniert das Forum
+    </h3>
+    <p class="mb-4">Das Community-Forum ist nach den Hauptknotenpunkten der Systades-Mindmap strukturiert. 
+      In deinen Beiträgen kannst du Knotenpunkte mit <code>@Knotenname</code> verlinken.</p>
+    <div class="grid grid-cols-1 md:grid-cols-3 gap-4 mt-6">
+      <div class="p-4 rounded-lg" 
+           x-bind:class="darkMode ? 'bg-indigo-800/40' : 'bg-white border border-indigo-100'">
+        <div class="text-2xl mb-2"><i class="fas fa-users text-indigo-400"></i></div>
+        <h4 class="font-medium mb-1">Fachliche Diskussionen</h4>
+        <p class="text-sm opacity-75">Tausche dich mit anderen zu spezifischen Themen aus</p>
+      </div>
+      <div class="p-4 rounded-lg" 
+           x-bind:class="darkMode ? 'bg-indigo-800/40' : 'bg-white border border-indigo-100'">
+        <div class="text-2xl mb-2"><i class="fas fa-link text-indigo-400"></i></div>
+        <h4 class="font-medium mb-1">Wissensvernetzung</h4>
+        <p class="text-sm opacity-75">Verknüpfe Inhalte durch Knotenreferenzen</p>
+      </div>
+      <div class="p-4 rounded-lg" 
+           x-bind:class="darkMode ? 'bg-indigo-800/40' : 'bg-white border border-indigo-100'">
+        <div class="text-2xl mb-2"><i class="fas fa-markdown text-indigo-400"></i></div>
+        <h4 class="font-medium mb-1">Markdown Support</h4>
+        <p class="text-sm opacity-75">Formatiere deine Beiträge mit Markdown</p>
+      </div>
+    </div>
+  </div>
+</div>
+{% endblock %}
+
+{% block scripts %}
+<script>
+  // Hier können bei Bedarf forumspezifische Scripts eingefügt werden
+</script>
+{% endblock %} 

templates/community/new_post.html

@@ -0,0 +1,355 @@
+{% extends 'base.html' %}
+
+{% block title %}Neues Thema - {{ category.title }}{% endblock %}
+
+{% block extra_css %}
+<style>
+  .markdown-preview {
+    min-height: 200px;
+    max-height: 400px;
+    overflow-y: auto;
+    line-height: 1.6;
+  }
+  .markdown-preview p {
+    margin-bottom: 1rem;
+  }
+  .markdown-preview h1, .markdown-preview h2, .markdown-preview h3, 
+  .markdown-preview h4, .markdown-preview h5, .markdown-preview h6 {
+    margin-top: 1.5rem;
+    margin-bottom: 0.75rem;
+    font-weight: 600;
+  }
+  .markdown-preview h1 { font-size: 1.8rem; }
+  .markdown-preview h2 { font-size: 1.5rem; }
+  .markdown-preview h3 { font-size: 1.3rem; }
+  .markdown-preview h4 { font-size: 1.1rem; }
+  .markdown-preview ul, .markdown-preview ol {
+    margin-left: 1.5rem;
+    margin-bottom: 1rem;
+  }
+  .markdown-preview ul { list-style-type: disc; }
+  .markdown-preview ol { list-style-type: decimal; }
+  .markdown-preview pre {
+    background-color: rgba(0,0,0,0.05);
+    padding: 1rem;
+    border-radius: 0.5rem;
+    overflow-x: auto;
+    margin: 1rem 0;
+  }
+  .markdown-preview code {
+    font-family: 'JetBrains Mono', monospace;
+    font-size: 0.9em;
+    padding: 0.1em 0.3em;
+    border-radius: 0.3em;
+    background-color: rgba(0,0,0,0.05);
+  }
+  .markdown-preview pre code {
+    padding: 0;
+    background-color: transparent;
+  }
+  .markdown-preview blockquote {
+    border-left: 4px solid;
+    padding-left: 1rem;
+    margin-left: 0;
+    margin-right: 0;
+    margin-bottom: 1rem;
+    opacity: 0.8;
+  }
+  .dark .markdown-preview code {
+    background-color: rgba(255,255,255,0.1);
+  }
+  .dark .markdown-preview blockquote {
+    border-color: rgba(255,255,255,0.2);
+  }
+  .node-mention {
+    display: inline-flex;
+    align-items: center;
+    background-color: rgba(109, 40, 217, 0.1);
+    color: #6d28d9;
+    border-radius: 4px;
+    padding: 1px 6px;
+    font-size: 0.9em;
+    margin: 0 2px;
+    font-weight: 500;
+  }
+  .dark .node-mention {
+    background-color: rgba(167, 139, 250, 0.2);
+    color: #a78bfa;
+  }
+</style>
+{% endblock %}
+
+{% block content %}
+<div class="container mx-auto px-4 py-8">
+  <!-- Breadcrumb Navigation -->
+  <div class="mb-6 flex items-center text-sm">
+    <a href="{{ url_for('community') }}" class="opacity-75 hover:opacity-100 transition-opacity">
+      <i class="fas fa-home mr-1"></i> Forum
+    </a>
+    <span class="mx-2 opacity-50">/</span>
+    <a href="{{ url_for('forum_category', category_id=category.id) }}" class="opacity-75 hover:opacity-100 transition-opacity">
+      {{ category.title }}
+    </a>
+    <span class="mx-2 opacity-50">/</span>
+    <span class="font-medium">Neues Thema</span>
+  </div>
+  
+  <!-- Formular-Header -->
+  <div class="mb-6">
+    <h1 class="text-2xl font-bold mb-2">Neues Thema erstellen</h1>
+    <p class="opacity-75">in der Kategorie <span class="font-medium">{{ category.title }}</span></p>
+  </div>
+  
+  <!-- Formular -->
+  <div class="mb-8 rounded-xl overflow-hidden"
+       x-bind:class="darkMode ? 'bg-gray-800/60 border border-white/10' : 'bg-white border border-gray-200'">
+    <div class="p-4 border-b font-medium" x-bind:class="darkMode ? 'border-white/10' : 'border-gray-200'">
+      <i class="fas fa-plus-circle mr-2"></i>
+      Neues Thema
+    </div>
+    <div class="p-6">
+      <form action="{{ url_for('new_post', category_id=category.id) }}" method="POST" x-data="{ 
+        title: '', 
+        content: '',
+        showPreview: false,
+        previewHtml: '',
+        
+        updatePreview() {
+          // Verarbeite den Inhalt
+          if (this.content.trim() === '') {
+            this.previewHtml = '<div class=\'opacity-50 italic\'>Die Vorschau wird hier angezeigt...</div>';
+            return;
+          }
+          
+          // Verarbeite Markdown
+          let html = marked.parse(this.content);
+          
+          // Ersetze @Knotenname mit entsprechenden Links
+          html = html.replace(/@([a-zA-Z0-9äöüÄÖÜß_-]+)/g, '<span class=\'node-mention\'><i class=\'fas fa-diagram-project fa-xs mr-1\'></i>$1</span>');
+          
+          this.previewHtml = html;
+        }
+      }">
+        <div class="mb-6">
+          <label for="title" class="block mb-2 font-medium">Titel des Themas</label>
+          <div class="rounded-lg overflow-hidden"
+               x-bind:class="darkMode ? 'border border-white/20' : 'border border-gray-300'">
+            <input type="text" id="title" name="title" 
+                  class="w-full px-4 py-3" 
+                  x-bind:class="darkMode 
+                  ? 'bg-gray-700/50 text-white placeholder-gray-400 focus:border-indigo-500' 
+                  : 'bg-white text-gray-700 placeholder-gray-400 focus:border-indigo-500'"
+                  placeholder="Ein prägnanter Titel für dein Thema"
+                  x-model="title"
+                  required>
+          </div>
+        </div>
+        
+        <div class="mb-6">
+          <div class="flex justify-between items-center mb-2">
+            <label for="content" class="font-medium">Inhalt</label>
+            <div class="flex space-x-2">
+              <button type="button"
+                     class="px-3 py-1 rounded text-sm flex items-center"
+                     x-bind:class="darkMode 
+                     ? 'bg-gray-700 hover:bg-gray-600 text-white' 
+                     : 'bg-gray-200 hover:bg-gray-300 text-gray-700'"
+                     @click="showPreview = false"
+                     x-bind:disabled="!showPreview"
+                     x-bind:class="{'opacity-50': !showPreview}">
+                <i class="fas fa-edit mr-1"></i> Bearbeiten
+              </button>
+              <button type="button"
+                     class="px-3 py-1 rounded text-sm flex items-center"
+                     x-bind:class="darkMode 
+                     ? 'bg-gray-700 hover:bg-gray-600 text-white' 
+                     : 'bg-gray-200 hover:bg-gray-300 text-gray-700'"
+                     @click="updatePreview(); showPreview = true"
+                     x-bind:disabled="showPreview"
+                     x-bind:class="{'opacity-50': showPreview}">
+                <i class="fas fa-eye mr-1"></i> Vorschau
+              </button>
+            </div>
+          </div>
+          
+          <!-- Editor -->
+          <div class="rounded-lg overflow-hidden mb-2"
+               x-bind:class="darkMode ? 'border border-white/20' : 'border border-gray-300'"
+               x-show="!showPreview">
+            <textarea id="content" name="content" rows="12" 
+                     class="w-full p-3 resize-y"
+                     x-bind:class="darkMode 
+                     ? 'bg-gray-700/50 text-white placeholder-gray-400 focus:border-indigo-500' 
+                     : 'bg-white text-gray-700 placeholder-gray-400 focus:border-indigo-500'"
+                     placeholder="Schreibe deinen Beitrag hier (unterstützt Markdown und @Knotenname-Erwähnungen)..."
+                     x-model="content"
+                     required></textarea>
+          </div>
+          
+          <!-- Preview -->
+          <div class="rounded-lg overflow-hidden mb-2 p-4 markdown-preview"
+               x-bind:class="darkMode 
+               ? 'border border-white/20 bg-gray-700/30' 
+               : 'border border-gray-300 bg-gray-50'"
+               x-show="showPreview"
+               x-html="previewHtml">
+          </div>
+          
+          <!-- Markdown-Hilfsmittel -->
+          <div class="mb-4" x-show="!showPreview">
+            <div class="text-xs opacity-70">
+              <p>Du kannst Knotenpunkte der Mindmap durch <code>@Knotenname</code> verlinken.</p>
+              <p>Dieser Editor unterstützt Markdown-Formatierung:</p>
+              <div class="flex flex-wrap gap-2 mt-1">
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="**" data-before="" data-after="" title="Fett">
+                  <i class="fas fa-bold"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="*" data-before="" data-after="" title="Kursiv">
+                  <i class="fas fa-italic"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="`" data-before="" data-after="" title="Code">
+                  <i class="fas fa-code"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="[Link-Text](URL)" data-before="" data-after="" title="Link">
+                  <i class="fas fa-link"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="\n```\nCode-Block\n```" data-before="" data-after="" title="Code-Block">
+                  <i class="fas fa-file-code"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format=">" data-before="" data-after="" title="Zitat">
+                  <i class="fas fa-quote-right"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="- " data-before="" data-after="" title="Liste">
+                  <i class="fas fa-list-ul"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="1. " data-before="" data-after="" title="Nummerierte Liste">
+                  <i class="fas fa-list-ol"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="# " data-before="" data-after="" title="Überschrift">
+                  <i class="fas fa-heading"></i>
+                </button>
+              </div>
+            </div>
+          </div>
+        </div>
+        
+        <div class="flex justify-between items-center">
+          <a href="{{ url_for('forum_category', category_id=category.id) }}" 
+             class="px-5 py-2.5 rounded-lg transition-all duration-300 flex items-center"
+             x-bind:class="darkMode 
+             ? 'bg-gray-700 hover:bg-gray-600 text-white' 
+             : 'bg-gray-200 hover:bg-gray-300 text-gray-700'">
+            Abbrechen
+          </a>
+          <button type="submit" 
+                 class="px-5 py-2.5 rounded-lg transition-all duration-300 flex items-center"
+                 x-bind:class="darkMode 
+                 ? 'bg-indigo-700 hover:bg-indigo-600 text-white' 
+                 : 'bg-indigo-500 hover:bg-indigo-600 text-white'">
+            <i class="fas fa-paper-plane mr-2"></i>
+            Thema erstellen
+          </button>
+        </div>
+      </form>
+    </div>
+  </div>
+  
+  <!-- Link zur Mindmap -->
+  <div class="rounded-xl p-5 mb-4 flex items-center"
+       x-bind:class="darkMode ? 'bg-purple-900/20 border border-purple-800/30' : 'bg-purple-50 border border-purple-100'">
+    <div class="text-3xl mr-4 opacity-80">
+      <i class="fas fa-diagram-project" style="color: {{ category.node.color_code }}"></i>
+    </div>
+    <div>
+      <h3 class="font-medium mb-1">Mindmap-Knotenpunkt: {{ category.node.name }}</h3>
+      <p class="text-sm opacity-75">Dieser Diskussionsbereich ist mit dem Mindmap-Knotenpunkt "{{ category.node.name }}" verknüpft.</p>
+    </div>
+    <div class="ml-auto">
+      <a href="{{ url_for('mindmap') }}" 
+         class="px-4 py-2 rounded-lg inline-block text-sm transition-all"
+         x-bind:class="darkMode 
+         ? 'bg-purple-800/60 hover:bg-purple-700/60 text-white' 
+         : 'bg-white hover:bg-purple-100 text-purple-800 border border-purple-200'">
+        Zur Mindmap
+      </a>
+    </div>
+  </div>
+</div>
+{% endblock %}
+
+{% block scripts %}
+<script>
+  document.addEventListener('DOMContentLoaded', function() {
+    // Markdown-Buttons für den Beitragseditor
+    document.querySelectorAll('.markdown-button').forEach(button => {
+      button.addEventListener('click', function() {
+        const textarea = document.getElementById('content');
+        const format = this.dataset.format;
+        const before = this.dataset.before || '';
+        const after = this.dataset.after || '';
+        
+        // Hole die aktuelle Auswahl
+        const start = textarea.selectionStart;
+        const end = textarea.selectionEnd;
+        const selection = textarea.value.substring(start, end);
+        
+        // Wende die Formatierung an
+        let formattedText;
+        if (format.includes('\n')) {
+          // Für Formate mit Zeilenumbrüchen (z.B. Code-Blöcke)
+          formattedText = format.replace('Code-Block', selection || 'Code-Block');
+        } else if (format.includes('[Link-Text](URL)')) {
+          formattedText = format.replace('Link-Text', selection || 'Link-Text');
+        } else if (format === '- ' || format === '1. ' || format === '# ' || format === '> ') {
+          // Für Listen und Überschriften: am Anfang der Zeile einfügen
+          const beforeSelection = textarea.value.substring(0, start);
+          const afterSelection = textarea.value.substring(end);
+          
+          // Finde den Anfang der aktuellen Zeile
+          const lastNewline = beforeSelection.lastIndexOf('\n');
+          const lineStart = lastNewline === -1 ? 0 : lastNewline + 1;
+          
+          // Füge das Format am Zeilenanfang ein
+          formattedText = beforeSelection.substring(0, lineStart) + 
+                         format + 
+                         beforeSelection.substring(lineStart) + 
+                         selection + 
+                         afterSelection;
+          
+          // Setze die neue Cursor-Position
+          const newCursorPos = end + format.length;
+          textarea.value = formattedText;
+          textarea.setSelectionRange(newCursorPos, newCursorPos);
+          
+          // Alpine.js Model aktualisieren
+          textarea.dispatchEvent(new Event('input'));
+          return; // Früher zurückkehren, da wir die Formatierung bereits angewendet haben
+        } else {
+          // Für einfache Formatierungen wie fett, kursiv, Code
+          formattedText = before + format + selection + format + after;
+        }
+        
+        // Ersetze den Text
+        textarea.value = textarea.value.substring(0, start) + formattedText + textarea.value.substring(end);
+        
+        // Setze den Fokus zurück auf das Textarea
+        textarea.focus();
+        
+        // Alpine.js Model aktualisieren
+        textarea.dispatchEvent(new Event('input'));
+        
+        // Setze die Auswahl neu, wenn es eine Auswahl gab
+        if (selection) {
+          const newStart = start + before.length + format.length;
+          const newEnd = newStart + selection.length;
+          textarea.setSelectionRange(newStart, newEnd);
+        } else {
+          // Setze den Cursor in die Mitte von **|** oder `|`
+          const newCursorPos = start + before.length + format.length;
+          textarea.setSelectionRange(newCursorPos, newCursorPos);
+        }
+      });
+    });
+  });
+</script>
+{% endblock %} 

templates/community/post.html

@@ -0,0 +1,511 @@
+{% extends 'base.html' %}
+
+{% block title %}{{ post.title }} - Forum{% endblock %}
+
+{% block extra_css %}
+<style>
+  .post-content {
+    line-height: 1.7;
+  }
+  .post-content p {
+    margin-bottom: 1rem;
+  }
+  .post-content h1, .post-content h2, .post-content h3, 
+  .post-content h4, .post-content h5, .post-content h6 {
+    margin-top: 1.5rem;
+    margin-bottom: 0.75rem;
+    font-weight: 600;
+  }
+  .post-content h1 { font-size: 1.8rem; }
+  .post-content h2 { font-size: 1.5rem; }
+  .post-content h3 { font-size: 1.3rem; }
+  .post-content h4 { font-size: 1.1rem; }
+  .post-content ul, .post-content ol {
+    margin-left: 1.5rem;
+    margin-bottom: 1rem;
+  }
+  .post-content ul { list-style-type: disc; }
+  .post-content ol { list-style-type: decimal; }
+  .post-content pre {
+    background-color: rgba(0,0,0,0.05);
+    padding: 1rem;
+    border-radius: 0.5rem;
+    overflow-x: auto;
+    margin: 1rem 0;
+  }
+  .post-content code {
+    font-family: 'JetBrains Mono', monospace;
+    font-size: 0.9em;
+    padding: 0.1em 0.3em;
+    border-radius: 0.3em;
+    background-color: rgba(0,0,0,0.05);
+  }
+  .post-content pre code {
+    padding: 0;
+    background-color: transparent;
+  }
+  .post-content blockquote {
+    border-left: 4px solid;
+    padding-left: 1rem;
+    margin-left: 0;
+    margin-right: 0;
+    margin-bottom: 1rem;
+    opacity: 0.8;
+  }
+  .post-content img {
+    max-width: 100%;
+    height: auto;
+    border-radius: 0.5rem;
+    margin: 1rem 0;
+  }
+  .post-content table {
+    width: 100%;
+    border-collapse: collapse;
+    margin: 1rem 0;
+  }
+  .post-content th, .post-content td {
+    padding: 0.5rem;
+    border: 1px solid;
+    border-color: rgba(0,0,0,0.1);
+  }
+  .post-content th {
+    background-color: rgba(0,0,0,0.05);
+  }
+  .post-content a {
+    color: #6d28d9;
+    text-decoration: none;
+  }
+  .post-content a:hover {
+    text-decoration: underline;
+  }
+  .dark .post-content code {
+    background-color: rgba(255,255,255,0.1);
+  }
+  .dark .post-content th, .dark .post-content td {
+    border-color: rgba(255,255,255,0.1);
+  }
+  .dark .post-content th {
+    background-color: rgba(255,255,255,0.05);
+  }
+  .dark .post-content a {
+    color: #a78bfa;
+  }
+  .node-mention {
+    display: inline-flex;
+    align-items: center;
+    background-color: rgba(109, 40, 217, 0.1);
+    color: #6d28d9;
+    border-radius: 4px;
+    padding: 1px 6px;
+    font-size: 0.9em;
+    margin: 0 2px;
+    font-weight: 500;
+  }
+  .dark .node-mention {
+    background-color: rgba(167, 139, 250, 0.2);
+    color: #a78bfa;
+  }
+</style>
+{% endblock %}
+
+{% block content %}
+<div class="container mx-auto px-4 py-8">
+  <!-- Breadcrumb Navigation -->
+  <div class="mb-6 flex items-center text-sm">
+    <a href="{{ url_for('community') }}" class="opacity-75 hover:opacity-100 transition-opacity">
+      <i class="fas fa-home mr-1"></i> Forum
+    </a>
+    <span class="mx-2 opacity-50">/</span>
+    <a href="{{ url_for('forum_category', category_id=category.id) }}" class="opacity-75 hover:opacity-100 transition-opacity">
+      {{ category.title }}
+    </a>
+    <span class="mx-2 opacity-50">/</span>
+    <span class="font-medium truncate max-w-[300px]">{{ post.title }}</span>
+  </div>
+  
+  <!-- Beitrags-Header -->
+  <div class="mb-6">
+    <h1 class="text-2xl font-bold mb-2">{{ post.title }}</h1>
+    <div class="flex flex-wrap items-center gap-3 text-sm opacity-75">
+      <span><i class="fas fa-calendar-alt mr-1"></i> {{ post.created_at.strftime('%d.%m.%Y, %H:%M') }}</span>
+      <span><i class="fas fa-eye mr-1"></i> {{ post.view_count }} Aufrufe</span>
+      <span><i class="fas fa-reply mr-1"></i> {{ replies|length }} Antworten</span>
+      
+      {% if post.is_pinned or post.is_locked %}
+      <div class="flex gap-2 ml-2">
+        {% if post.is_pinned %}
+        <span class="px-2 py-0.5 text-xs rounded-full"
+              x-bind:class="darkMode ? 'bg-yellow-700/50 text-yellow-300' : 'bg-yellow-100 text-yellow-800'">
+          <i class="fas fa-thumbtack mr-1"></i> Angepinnt
+        </span>
+        {% endif %}
+        {% if post.is_locked %}
+        <span class="px-2 py-0.5 text-xs rounded-full"
+              x-bind:class="darkMode ? 'bg-red-700/50 text-red-300' : 'bg-red-100 text-red-800'">
+          <i class="fas fa-lock mr-1"></i> Gesperrt
+        </span>
+        {% endif %}
+      </div>
+      {% endif %}
+    </div>
+  </div>
+  
+  <!-- Hauptbeitrag -->
+  <div class="mb-8 rounded-xl overflow-hidden"
+       x-bind:class="darkMode ? 'bg-gray-800/60 border border-white/10' : 'bg-white border border-gray-200 shadow-sm'">
+    <!-- Beitrags-Header -->
+    <div class="p-4 border-b" x-bind:class="darkMode ? 'border-white/10' : 'border-gray-200'">
+      <div class="flex items-center justify-between">
+        <div class="flex items-center">
+          <!-- Autor-Avatar -->
+          <div class="w-10 h-10 rounded-full flex items-center justify-center text-white font-medium text-sm overflow-hidden mr-3" 
+               style="background: linear-gradient(135deg, #8b5cf6, #6366f1);">
+            {% if post.author.avatar %}
+              <img src="{{ post.author.avatar }}" alt="{{ post.author.username }}" class="w-full h-full object-cover">
+            {% else %}
+              <svg width="100%" height="100%" viewBox="0 0 200 200" fill="none" xmlns="http://www.w3.org/2000/svg">
+                <circle cx="100" cy="100" r="98" fill="url(#post-avatar-gradient)" stroke="#7C3AED" stroke-width="4"/>
+                <circle cx="100" cy="80" r="36" fill="white"/>
+                <path d="M100 140C77.9086 140 60 157.909 60 180H140C140 157.909 122.091 140 100 140Z" fill="white"/>
+                <defs>
+                  <linearGradient id="post-avatar-gradient" x1="0" y1="0" x2="200" y2="200" gradientUnits="userSpaceOnUse">
+                    <stop offset="0" stop-color="#8B5CF6"/>
+                    <stop offset="1" stop-color="#3B82F6"/>
+                  </linearGradient>
+                </defs>
+              </svg>
+            {% endif %}
+          </div>
+          
+          <!-- Autor-Info -->
+          <div>
+            <div class="font-medium">{{ post.author.username }}</div>
+            <div class="text-xs opacity-70">Erstellt am {{ post.created_at.strftime('%d.%m.%Y, %H:%M') }}</div>
+          </div>
+        </div>
+        
+        <!-- Aktionen -->
+        <div class="flex items-center space-x-2">
+          {% if current_user.id == post.user_id or current_user.role == 'admin' %}
+            <a href="{{ url_for('edit_post', post_id=post.id) }}" 
+               class="p-2 rounded transition-colors"
+               x-bind:class="darkMode 
+               ? 'hover:bg-gray-700/50 text-gray-300' 
+               : 'hover:bg-gray-100 text-gray-600'">
+              <i class="fas fa-edit"></i>
+            </a>
+            <form action="{{ url_for('delete_post', post_id=post.id) }}" method="POST" class="inline" onsubmit="return confirm('Möchtest du diesen Beitrag wirklich löschen?');">
+              <button type="submit" 
+                     class="p-2 rounded transition-colors"
+                     x-bind:class="darkMode 
+                     ? 'hover:bg-red-800/50 text-red-300' 
+                     : 'hover:bg-red-100 text-red-600'">
+                <i class="fas fa-trash-alt"></i>
+              </button>
+            </form>
+          {% endif %}
+          
+          <!-- Moderation-Optionen -->
+          {% if current_user.role in ['admin', 'moderator'] %}
+            <div class="ml-2 border-l" x-bind:class="darkMode ? 'border-white/10' : 'border-gray-200'"></div>
+            <form action="{{ url_for('toggle_pin_post', post_id=post.id) }}" method="POST" class="inline">
+              <button type="submit" 
+                    class="p-2 rounded transition-colors"
+                    x-bind:class="darkMode 
+                    ? 'hover:bg-yellow-800/50 text-yellow-300' 
+                    : 'hover:bg-yellow-100 text-yellow-600'"
+                    title="{% if post.is_pinned %}Nicht mehr anpinnen{% else %}Anpinnen{% endif %}">
+                <i class="fas fa-thumbtack"></i>
+              </button>
+            </form>
+            <form action="{{ url_for('toggle_lock_post', post_id=post.id) }}" method="POST" class="inline">
+              <button type="submit" 
+                    class="p-2 rounded transition-colors"
+                    x-bind:class="darkMode 
+                    ? 'hover:bg-blue-800/50 text-blue-300' 
+                    : 'hover:bg-blue-100 text-blue-600'"
+                    title="{% if post.is_locked %}Entsperren{% else %}Sperren{% endif %}">
+                <i class="fas {% if post.is_locked %}fa-unlock{% else %}fa-lock{% endif %}"></i>
+              </button>
+            </form>
+          {% endif %}
+        </div>
+      </div>
+    </div>
+    
+    <!-- Beitrags-Inhalt -->
+    <div class="p-6">
+      <div class="post-content markdown-content" id="main-post-content">
+        {{ post.content|safe }}
+      </div>
+      
+      {% if post.updated_at and post.updated_at != post.created_at %}
+        <div class="mt-6 pt-4 text-xs opacity-60 border-t" x-bind:class="darkMode ? 'border-white/10' : 'border-gray-200'">
+          <i class="fas fa-edit mr-1"></i> Zuletzt bearbeitet: {{ post.updated_at.strftime('%d.%m.%Y, %H:%M') }}
+        </div>
+      {% endif %}
+    </div>
+  </div>
+  
+  <!-- Antworten-Bereich -->
+  <div class="mb-8">
+    <h2 class="text-xl font-semibold mb-4">
+      <i class="fas fa-reply mr-2 opacity-60"></i>
+      {{ replies|length }} Antworten
+    </h2>
+    
+    <!-- Antworten-Liste -->
+    {% if replies %}
+      {% for reply in replies %}
+        <div class="mb-5 rounded-xl overflow-hidden"
+            x-bind:class="darkMode ? 'bg-gray-800/40 border border-white/10' : 'bg-white border border-gray-200'">
+          <!-- Antwort-Header -->
+          <div class="p-3 border-b" x-bind:class="darkMode ? 'border-white/10' : 'border-gray-200'">
+            <div class="flex items-center justify-between">
+              <div class="flex items-center">
+                <!-- Autor-Avatar -->
+                <div class="w-8 h-8 rounded-full flex items-center justify-center text-white font-medium text-xs overflow-hidden mr-3" 
+                    style="background: linear-gradient(135deg, #8b5cf6, #6366f1);">
+                  {% if reply.author.avatar %}
+                    <img src="{{ reply.author.avatar }}" alt="{{ reply.author.username }}" class="w-full h-full object-cover">
+                  {% else %}
+                    <svg width="100%" height="100%" viewBox="0 0 200 200" fill="none" xmlns="http://www.w3.org/2000/svg">
+                      <circle cx="100" cy="100" r="98" fill="url(#reply-avatar-gradient)" stroke="#7C3AED" stroke-width="4"/>
+                      <circle cx="100" cy="80" r="36" fill="white"/>
+                      <path d="M100 140C77.9086 140 60 157.909 60 180H140C140 157.909 122.091 140 100 140Z" fill="white"/>
+                      <defs>
+                        <linearGradient id="reply-avatar-gradient" x1="0" y1="0" x2="200" y2="200" gradientUnits="userSpaceOnUse">
+                          <stop offset="0" stop-color="#8B5CF6"/>
+                          <stop offset="1" stop-color="#3B82F6"/>
+                        </linearGradient>
+                      </defs>
+                    </svg>
+                  {% endif %}
+                </div>
+                
+                <!-- Autor-Info -->
+                <div>
+                  <div class="font-medium text-sm">{{ reply.author.username }}</div>
+                  <div class="text-xs opacity-70">{{ reply.created_at.strftime('%d.%m.%Y, %H:%M') }}</div>
+                </div>
+              </div>
+              
+              <!-- Aktionen -->
+              <div class="flex items-center space-x-1">
+                {% if current_user.id == reply.user_id or current_user.role == 'admin' %}
+                  <a href="{{ url_for('edit_post', post_id=reply.id) }}" 
+                    class="p-1.5 rounded text-sm transition-colors"
+                    x-bind:class="darkMode 
+                    ? 'hover:bg-gray-700/50 text-gray-300' 
+                    : 'hover:bg-gray-100 text-gray-600'">
+                    <i class="fas fa-edit"></i>
+                  </a>
+                  <form action="{{ url_for('delete_post', post_id=reply.id) }}" method="POST" class="inline" onsubmit="return confirm('Möchtest du diese Antwort wirklich löschen?');">
+                    <button type="submit" 
+                          class="p-1.5 rounded text-sm transition-colors"
+                          x-bind:class="darkMode 
+                          ? 'hover:bg-red-800/50 text-red-300' 
+                          : 'hover:bg-red-100 text-red-600'">
+                      <i class="fas fa-trash-alt"></i>
+                    </button>
+                  </form>
+                {% endif %}
+              </div>
+            </div>
+          </div>
+          
+          <!-- Antwort-Inhalt -->
+          <div class="p-5">
+            <div class="post-content markdown-content reply-content" id="reply-content-{{ reply.id }}">
+              {{ reply.content|safe }}
+            </div>
+            
+            {% if reply.updated_at and reply.updated_at != reply.created_at %}
+              <div class="mt-4 pt-3 text-xs opacity-60 border-t" x-bind:class="darkMode ? 'border-white/10' : 'border-gray-200'">
+                <i class="fas fa-edit mr-1"></i> Zuletzt bearbeitet: {{ reply.updated_at.strftime('%d.%m.%Y, %H:%M') }}
+              </div>
+            {% endif %}
+          </div>
+        </div>
+      {% endfor %}
+    {% else %}
+      <div class="rounded-xl p-6 text-center"
+           x-bind:class="darkMode ? 'bg-gray-800/40 border border-white/10' : 'bg-white border border-gray-200'">
+        <div class="text-3xl mb-3 opacity-30"><i class="fas fa-comments"></i></div>
+        <h3 class="text-lg font-semibold mb-2">Noch keine Antworten</h3>
+        <p class="opacity-75">Sei der Erste, der auf diesen Beitrag antwortet!</p>
+      </div>
+    {% endif %}
+  </div>
+  
+  <!-- Antwort-Formular -->
+  {% if not post.is_locked %}
+    <div class="mb-8 rounded-xl overflow-hidden"
+         x-bind:class="darkMode ? 'bg-gray-800/60 border border-white/10' : 'bg-white border border-gray-200'">
+      <div class="p-4 border-b font-medium" x-bind:class="darkMode ? 'border-white/10' : 'border-gray-200'">
+        <i class="fas fa-reply mr-2"></i>
+        Antworten
+      </div>
+      <div class="p-6">
+        <form action="{{ url_for('reply_to_post', post_id=post.id) }}" method="POST">
+          <div class="mb-4">
+            <label for="content" class="block mb-2 font-medium">Deine Antwort</label>
+            <div class="mb-2 rounded-lg overflow-hidden"
+                 x-bind:class="darkMode ? 'border border-white/20' : 'border border-gray-300'">
+              <textarea id="content" name="content" rows="6" 
+                       class="w-full p-3 resize-y"
+                       x-bind:class="darkMode 
+                       ? 'bg-gray-700/50 text-white placeholder-gray-400 focus:border-indigo-500' 
+                       : 'bg-white text-gray-700 placeholder-gray-400 focus:border-indigo-500'"
+                       placeholder="Schreibe deine Antwort hier (unterstützt Markdown und @Knotenname-Erwähnungen)..."
+                      required></textarea>
+            </div>
+            <div class="text-xs opacity-70">
+              <p>Du kannst Knotenpunkte der Mindmap durch <code>@Knotenname</code> verlinken.</p>
+              <p>Dieser Editor unterstützt Markdown-Formatierung:</p>
+              <div class="flex flex-wrap gap-2 mt-1">
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="**" data-before="" data-after="" title="Fett">
+                  <i class="fas fa-bold"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="*" data-before="" data-after="" title="Kursiv">
+                  <i class="fas fa-italic"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="`" data-before="" data-after="" title="Code">
+                  <i class="fas fa-code"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="[Link-Text](URL)" data-before="" data-after="" title="Link">
+                  <i class="fas fa-link"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="\n```\nCode-Block\n```" data-before="" data-after="" title="Code-Block">
+                  <i class="fas fa-file-code"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format=">" data-before="" data-after="" title="Zitat">
+                  <i class="fas fa-quote-right"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="- " data-before="" data-after="" title="Liste">
+                  <i class="fas fa-list-ul"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="1. " data-before="" data-after="" title="Nummerierte Liste">
+                  <i class="fas fa-list-ol"></i>
+                </button>
+                <button type="button" class="markdown-button px-2 py-1 rounded text-xs" data-format="# " data-before="" data-after="" title="Überschrift">
+                  <i class="fas fa-heading"></i>
+                </button>
+              </div>
+            </div>
+          </div>
+          <div>
+            <button type="submit" 
+                   class="px-5 py-2.5 rounded-lg transition-all duration-300 flex items-center"
+                   x-bind:class="darkMode 
+                   ? 'bg-indigo-700 hover:bg-indigo-600 text-white' 
+                   : 'bg-indigo-500 hover:bg-indigo-600 text-white'">
+              <i class="fas fa-paper-plane mr-2"></i>
+              Antwort senden
+            </button>
+          </div>
+        </form>
+      </div>
+    </div>
+  {% else %}
+    <div class="rounded-xl p-5 text-center mb-6"
+         x-bind:class="darkMode ? 'bg-red-900/20 border border-red-800/30' : 'bg-red-50 border border-red-100'">
+      <i class="fas fa-lock mr-2 text-red-500"></i>
+      <span>Dieser Beitrag ist geschlossen. Es können keine neuen Antworten mehr verfasst werden.</span>
+    </div>
+  {% endif %}
+</div>
+{% endblock %}
+
+{% block scripts %}
+<script>
+  document.addEventListener('DOMContentLoaded', function() {
+    // Markdown und Knotenerwähnungen verarbeiten
+    const processContent = (content) => {
+      // Verarbeite Markdown mit marked.js
+      let html = marked.parse(content);
+      
+      // Ersetze @Knotenname mit entsprechenden Links
+      html = html.replace(/@([a-zA-Z0-9äöüÄÖÜß_-]+)/g, '<span class="node-mention"><i class="fas fa-diagram-project fa-xs mr-1"></i>$1</span>');
+      
+      return html;
+    };
+    
+    // Markdown-Inhalt für Hauptbeitrag rendern
+    const mainPostContent = document.getElementById('main-post-content');
+    if (mainPostContent) {
+      mainPostContent.innerHTML = processContent(mainPostContent.textContent.trim());
+    }
+    
+    // Markdown-Inhalt für Antworten rendern
+    document.querySelectorAll('.reply-content').forEach(reply => {
+      reply.innerHTML = processContent(reply.textContent.trim());
+    });
+    
+    // Markdown-Buttons für das Antwortformular
+    document.querySelectorAll('.markdown-button').forEach(button => {
+      button.addEventListener('click', function() {
+        const textarea = document.getElementById('content');
+        const format = this.dataset.format;
+        const before = this.dataset.before || '';
+        const after = this.dataset.after || '';
+        
+        // Hole die aktuelle Auswahl
+        const start = textarea.selectionStart;
+        const end = textarea.selectionEnd;
+        const selection = textarea.value.substring(start, end);
+        
+        // Wende die Formatierung an
+        let formattedText;
+        if (format.includes('\n')) {
+          // Für Formate mit Zeilenumbrüchen (z.B. Code-Blöcke)
+          formattedText = format.replace('Code-Block', selection || 'Code-Block');
+        } else if (format.includes('[Link-Text](URL)')) {
+          formattedText = format.replace('Link-Text', selection || 'Link-Text');
+        } else if (format === '- ' || format === '1. ' || format === '# ' || format === '> ') {
+          // Für Listen und Überschriften: am Anfang der Zeile einfügen
+          const beforeSelection = textarea.value.substring(0, start);
+          const afterSelection = textarea.value.substring(end);
+          
+          // Finde den Anfang der aktuellen Zeile
+          const lastNewline = beforeSelection.lastIndexOf('\n');
+          const lineStart = lastNewline === -1 ? 0 : lastNewline + 1;
+          
+          // Füge das Format am Zeilenanfang ein
+          formattedText = beforeSelection.substring(0, lineStart) + 
+                         format + 
+                         beforeSelection.substring(lineStart) + 
+                         selection + 
+                         afterSelection;
+          
+          // Setze die neue Cursor-Position
+          const newCursorPos = end + format.length;
+          textarea.value = formattedText;
+          textarea.setSelectionRange(newCursorPos, newCursorPos);
+          return; // Früher zurückkehren, da wir die Formatierung bereits angewendet haben
+        } else {
+          // Für einfache Formatierungen wie fett, kursiv, Code
+          formattedText = before + format + selection + format + after;
+        }
+        
+        // Ersetze den Text
+        textarea.value = textarea.value.substring(0, start) + formattedText + textarea.value.substring(end);
+        
+        // Setze den Fokus zurück auf das Textarea
+        textarea.focus();
+        
+        // Setze die Auswahl neu, wenn es eine Auswahl gab
+        if (selection) {
+          const newStart = start + before.length + format.length;
+          const newEnd = newStart + selection.length;
+          textarea.setSelectionRange(newStart, newEnd);
+        } else {
+          // Setze den Cursor in die Mitte von **|** oder `|`
+          const newCursorPos = start + before.length + format.length;
+          textarea.setSelectionRange(newCursorPos, newCursorPos);
+        }
+      });
+    });
+  });
+</script>
+{% endblock %} 

templates/community/preview.html

@@ -0,0 +1,137 @@
+{% extends 'base.html' %}
+
+{% block title %}Community Forum Vorschau{% endblock %}
+
+{% block extra_css %}
+<style>
+  .forum-category {
+    transition: all 0.3s ease;
+  }
+  .forum-category:hover {
+    transform: translateY(-2px);
+  }
+  .category-icon {
+    font-size: 1.5rem;
+    width: 2.5rem;
+    height: 2.5rem;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    border-radius: 0.75rem;
+  }
+</style>
+{% endblock %}
+
+{% block content %}
+<div class="container mx-auto px-4 py-8">
+  <!-- Seitenüberschrift -->
+  <div class="mb-8 text-center">
+    <h1 class="text-3xl font-bold mb-2 gradient-text">Community Forum</h1>
+    <p class="text-lg opacity-75">Diskutiere mit anderen Nutzern über die Hauptthemenbereiche der Mindmap</p>
+  </div>
+  
+  <!-- Login-Aufforderung -->
+  <div class="rounded-xl p-6 text-center mb-8 bg-indigo-50 dark:bg-indigo-900/30 border border-indigo-100 dark:border-indigo-700/30">
+    <h3 class="text-xl font-semibold mb-3">
+      <i class="fas fa-lock mr-2 text-indigo-500"></i>
+      Anmeldung erforderlich
+    </h3>
+    <p class="mb-4">Um am Community-Forum teilzunehmen und alle Funktionen nutzen zu können, musst du dich anmelden oder registrieren.</p>
+    <div class="flex justify-center gap-4 mt-4">
+      <a href="{{ url_for('login', next=url_for('forum')) }}" class="px-4 py-2 bg-indigo-500 hover:bg-indigo-600 text-white rounded-lg transition-colors">
+        <i class="fas fa-sign-in-alt mr-2"></i>Anmelden
+      </a>
+      <a href="{{ url_for('register') }}" class="px-4 py-2 bg-purple-500 hover:bg-purple-600 text-white rounded-lg transition-colors">
+        <i class="fas fa-user-plus mr-2"></i>Registrieren
+      </a>
+    </div>
+  </div>
+  
+  <!-- Forumskategorien Vorschau -->
+  <div class="grid grid-cols-1 md:grid-cols-2 gap-6 mb-8">
+    {% if categories_data %}
+      {% for cat_data in categories_data %}
+        <div class="forum-category block">
+          <div class="rounded-xl p-5 h-full" 
+               x-bind:class="darkMode ? 'bg-gray-800/60 border border-white/10' : 'bg-white border border-gray-200 shadow-md'">
+            <div class="flex items-start">
+              <!-- Kategorie-Icon -->
+              <div class="category-icon mr-4 text-white" 
+                   style="background-color: {{ cat_data.category.node.color_code or '#6d28d9' }}">
+                <i class="fas {{ cat_data.category.node.icon or 'fa-folder' }}"></i>
+              </div>
+              
+              <!-- Kategorie-Info -->
+              <div class="flex-grow">
+                <h3 class="text-xl font-semibold mb-2">{{ cat_data.category.title }}</h3>
+                <p class="opacity-75 text-sm mb-3">{{ cat_data.category.description }}</p>
+                
+                <!-- Statistik -->
+                <div class="flex flex-wrap gap-4 text-sm opacity-80">
+                  <div class="flex items-center">
+                    <i class="fas fa-comment-alt mr-2"></i>
+                    <span>{{ cat_data.total_posts }} Themen</span>
+                  </div>
+                  <div class="flex items-center">
+                    <i class="fas fa-reply mr-2"></i>
+                    <span>{{ cat_data.total_replies }} Antworten</span>
+                  </div>
+                </div>
+              </div>
+              
+              <!-- Pfeil-Icon -->
+              <div class="ml-2">
+                <i class="fas fa-lock opacity-50"></i>
+              </div>
+            </div>
+          </div>
+        </div>
+      {% endfor %}
+    {% else %}
+      <div class="col-span-2 text-center py-8">
+        <div class="text-3xl mb-3 opacity-30"><i class="fas fa-exclamation-circle"></i></div>
+        <h3 class="text-xl font-semibold mb-2">Keine Forum-Kategorien gefunden</h3>
+        <p class="opacity-75">Es sind derzeit keine Kategorien für Diskussionen verfügbar.</p>
+      </div>
+    {% endif %}
+  </div>
+  
+  <!-- Hinweis zur Nutzung -->
+  <div class="rounded-xl p-6 text-center mb-8" 
+       x-bind:class="darkMode ? 'bg-indigo-900/30 border border-indigo-700/30' : 'bg-indigo-50 border border-indigo-100'">
+    <h3 class="text-xl font-semibold mb-3">
+      <i class="fas fa-lightbulb mr-2 text-yellow-500"></i>
+      So funktioniert das Forum
+    </h3>
+    <p class="mb-4">Das Community-Forum ist nach den Hauptknotenpunkten der Systades-Mindmap strukturiert. 
+      In deinen Beiträgen kannst du Knotenpunkte mit <code>@Knotenname</code> verlinken.</p>
+    
+    <div class="grid grid-cols-1 md:grid-cols-3 gap-4 mt-6">
+      <div class="p-4 rounded-lg" 
+           x-bind:class="darkMode ? 'bg-indigo-800/40' : 'bg-white border border-indigo-100'">
+        <div class="text-2xl mb-2"><i class="fas fa-users text-indigo-400"></i></div>
+        <h4 class="font-medium mb-1">Fachliche Diskussionen</h4>
+        <p class="text-sm opacity-75">Tausche dich mit anderen zu spezifischen Themen aus</p>
+      </div>
+      <div class="p-4 rounded-lg" 
+           x-bind:class="darkMode ? 'bg-indigo-800/40' : 'bg-white border border-indigo-100'">
+        <div class="text-2xl mb-2"><i class="fas fa-link text-indigo-400"></i></div>
+        <h4 class="font-medium mb-1">Wissensvernetzung</h4>
+        <p class="text-sm opacity-75">Verknüpfe Inhalte durch Knotenreferenzen</p>
+      </div>
+      <div class="p-4 rounded-lg" 
+           x-bind:class="darkMode ? 'bg-indigo-800/40' : 'bg-white border border-indigo-100'">
+        <div class="text-2xl mb-2"><i class="fas fa-markdown text-indigo-400"></i></div>
+        <h4 class="font-medium mb-1">Markdown Support</h4>
+        <p class="text-sm opacity-75">Formatiere deine Beiträge mit Markdown</p>
+      </div>
+    </div>
+  </div>
+</div>
+{% endblock %}
+
+{% block scripts %}
+<script>
+  // Hier können bei Bedarf forumspezifische Scripts eingefügt werden
+</script>
+{% endblock %} 

templates/create_mindmap.html

@@ -0,0 +1,365 @@
+{% extends "base.html" %}
+
+{% block title %}Mindmap erstellen{% endblock %}
+
+{% block extra_css %}
+<style>
+  /* Spezifische Stile für die Mindmap-Erstellungsseite */
+  .form-container {
+    background-color: var(--bg-secondary);
+    border-radius: 12px;
+    overflow: hidden;
+    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
+    transition: all 0.3s ease;
+  }
+  
+  body.dark .form-container {
+    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
+    border: 1px solid rgba(255, 255, 255, 0.05);
+  }
+  
+  body:not(.dark) .form-container {
+    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
+    border: 1px solid rgba(0, 0, 0, 0.05);
+  }
+  
+  .form-header {
+    padding: 1.5rem;
+    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
+  }
+  
+  body:not(.dark) .form-header {
+    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
+  }
+  
+  .form-body {
+    padding: 1.5rem;
+  }
+  
+  .form-group {
+    margin-bottom: 1.5rem;
+  }
+  
+  .form-label {
+    display: block;
+    margin-bottom: 0.5rem;
+    font-weight: 500;
+  }
+  
+  .form-input,
+  .form-textarea {
+    width: 100%;
+    padding: 0.75rem 1rem;
+    border-radius: 0.5rem;
+    transition: all 0.3s ease;
+  }
+  
+  body.dark .form-input,
+  body.dark .form-textarea {
+    background-color: rgba(15, 23, 42, 0.6);
+    border: 1px solid rgba(255, 255, 255, 0.1);
+    color: #f1f5f9;
+  }
+  
+  body:not(.dark) .form-input,
+  body:not(.dark) .form-textarea {
+    background-color: white;
+    border: 1px solid #e2e8f0;
+    color: #334155;
+  }
+  
+  body.dark .form-input:focus,
+  body.dark .form-textarea:focus {
+    border-color: #7c3aed;
+    box-shadow: 0 0 0 2px rgba(124, 58, 237, 0.2);
+    outline: none;
+  }
+  
+  body:not(.dark) .form-input:focus,
+  body:not(.dark) .form-textarea:focus {
+    border-color: #7c3aed;
+    box-shadow: 0 0 0 2px rgba(124, 58, 237, 0.2);
+    outline: none;
+  }
+  
+  .form-textarea {
+    min-height: 120px;
+    resize: vertical;
+  }
+  
+  .form-switch {
+    display: flex;
+    align-items: center;
+  }
+  
+  .form-switch input[type="checkbox"] {
+    height: 0;
+    width: 0;
+    visibility: hidden;
+    position: absolute;
+  }
+  
+  .form-switch label {
+    cursor: pointer;
+    width: 50px;
+    height: 25px;
+    background: rgba(100, 116, 139, 0.3);
+    display: block;
+    border-radius: 25px;
+    position: relative;
+    margin-right: 10px;
+    transition: all 0.3s ease;
+  }
+  
+  .form-switch label:after {
+    content: '';
+    position: absolute;
+    top: 3px;
+    left: 3px;
+    width: 19px;
+    height: 19px;
+    background: #fff;
+    border-radius: 19px;
+    transition: 0.3s;
+  }
+  
+  .form-switch input:checked + label {
+    background: #7c3aed;
+  }
+  
+  .form-switch input:checked + label:after {
+    left: calc(100% - 3px);
+    transform: translateX(-100%);
+  }
+  
+  .btn-submit {
+    background-color: #7c3aed;
+    color: white;
+    padding: 0.75rem 1.5rem;
+    border-radius: 0.5rem;
+    font-weight: 500;
+    transition: all 0.3s ease;
+    border: none;
+    cursor: pointer;
+    display: inline-flex;
+    align-items: center;
+    gap: 0.5rem;
+  }
+  
+  .btn-submit:hover {
+    background-color: #6d28d9;
+    transform: translateY(-2px);
+    box-shadow: 0 4px 12px rgba(109, 40, 217, 0.2);
+  }
+  
+  .btn-cancel {
+    background-color: transparent;
+    padding: 0.75rem 1.5rem;
+    border-radius: 0.5rem;
+    font-weight: 500;
+    transition: all 0.3s ease;
+    border: 1px solid;
+    cursor: pointer;
+    display: inline-flex;
+    align-items: center;
+    gap: 0.5rem;
+  }
+  
+  body.dark .btn-cancel {
+    color: #e2e8f0;
+    border-color: rgba(255, 255, 255, 0.1);
+  }
+  
+  body:not(.dark) .btn-cancel {
+    color: #475569;
+    border-color: #e2e8f0;
+  }
+  
+  .btn-cancel:hover {
+    transform: translateY(-2px);
+  }
+  
+  body.dark .btn-cancel:hover {
+    background-color: rgba(255, 255, 255, 0.05);
+  }
+  
+  body:not(.dark) .btn-cancel:hover {
+    background-color: rgba(0, 0, 0, 0.05);
+  }
+  
+  /* Animation für den Seiteneintritt */
+  @keyframes slideInUp {
+    from {
+      transform: translateY(20px);
+      opacity: 0;
+    }
+    to {
+      transform: translateY(0);
+      opacity: 1;
+    }
+  }
+  
+  .form-container {
+    animation: slideInUp 0.5s ease forwards;
+  }
+  
+  /* Animation für Hover-Effekte */
+  .input-animation {
+    transition: transform 0.3s ease, box-shadow 0.3s ease;
+  }
+  
+  .input-animation:focus {
+    transform: scale(1.01);
+  }
+</style>
+{% endblock %}
+
+{% block content %}
+<div class="container mx-auto px-4 py-8 animate-fadeIn">
+  <div class="max-w-3xl mx-auto">
+    <!-- Titel mit Animation -->
+    <div class="text-center mb-8 animate-pulse">
+      <h1 class="text-3xl font-bold mb-2 mystical-glow gradient-text">
+        Neue Mindmap erstellen
+      </h1>
+      <p class="opacity-80">Erstelle deine eigene Wissenslandkarte und organisiere deine Gedanken</p>
+    </div>
+    
+    <div class="form-container">
+      <div class="form-header">
+        <h2 class="text-xl font-semibold">Mindmap-Details</h2>
+      </div>
+      
+      <div class="form-body">
+        <form action="{{ url_for('create_mindmap') }}" method="POST">
+          <div class="form-group">
+            <label for="name" class="form-label">Name der Mindmap</label>
+            <input type="text" id="name" name="name" class="form-input input-animation" required placeholder="z.B. Meine Philosophie-Mindmap">
+          </div>
+          
+          <div class="form-group">
+            <label for="description" class="form-label">Beschreibung</label>
+            <textarea id="description" name="description" class="form-textarea input-animation" placeholder="Worum geht es in dieser Mindmap?"></textarea>
+          </div>
+          
+          <div class="form-group">
+            <div class="form-switch">
+              <input type="checkbox" id="is_private" name="is_private" checked>
+              <label for="is_private"></label>
+              <span>Private Mindmap (nur für dich sichtbar)</span>
+            </div>
+          </div>
+          
+          <div class="flex justify-between mt-6">
+            <a href="{{ url_for('profile') }}" class="btn-cancel">
+              <i class="fas fa-arrow-left"></i>
+              Zurück
+            </a>
+            <button type="submit" class="btn-submit">
+              <i class="fas fa-save"></i>
+              Mindmap erstellen
+            </button>
+          </div>
+        </form>
+
+        <!-- Mindmap-Vorschau -->
+        <div class="mt-8">
+          <h3 class="text-xl font-semibold mb-4">Vorschau</h3>
+          <div class="mindmap-container">
+            <div id="cy" class="w-full h-[400px] rounded-xl border"
+                 x-bind:class="darkMode ? 'border-gray-700' : 'border-gray-200'">
+            </div>
+          </div>
+        </div>
+      </div>
+    </div>
+    
+    <!-- Tipps-Sektion -->
+    <div class="mt-8 p-5 rounded-lg border animate-fadeIn" 
+         x-bind:class="darkMode ? 'bg-slate-800/40 border-slate-700/50' : 'bg-white border-slate-200'">
+      <h3 class="text-xl font-semibold mb-3"
+          x-bind:class="darkMode ? 'text-white' : 'text-gray-800'">
+        <i class="fa-solid fa-lightbulb text-yellow-400 mr-2"></i>Tipps zum Erstellen einer Mindmap
+      </h3>
+      <div x-bind:class="darkMode ? 'text-gray-300' : 'text-gray-600'">
+        <ul class="list-disc pl-5 space-y-2">
+          <li>Wähle einen prägnanten, aber aussagekräftigen Namen für deine Mindmap</li>
+          <li>Beginne mit einem zentralen Konzept und arbeite dich nach außen vor</li>
+          <li>Verwende verschiedene Farben für unterschiedliche Kategorien oder Themenbereiche</li>
+          <li>Füge Notizen zu Knoten hinzu, um komplexere Ideen zu erklären</li>
+          <li>Verknüpfe verwandte Konzepte, um Beziehungen zu visualisieren</li>
+        </ul>
+      </div>
+    </div>
+  </div>
+</div>
+{% endblock %}
+
+{% block extra_js %}
+<script src="https://cdnjs.cloudflare.com/ajax/libs/cytoscape/3.26.0/cytoscape.min.js"></script>
+<script src="https://cdnjs.cloudflare.com/ajax/libs/cytoscape-cose-bilkent/4.1.0/cytoscape-cose-bilkent.min.js"></script>
+<script nonce="{{ csp_nonce }}">
+  document.addEventListener('DOMContentLoaded', function() {
+    // Einfache Animationen für die Eingabefelder
+    const inputs = document.querySelectorAll('.input-animation');
+    
+    inputs.forEach(input => {
+      // Subtile Skalierung bei Fokus
+      input.addEventListener('focus', function() {
+        this.style.transform = 'scale(1.01)';
+        this.style.boxShadow = '0 4px 12px rgba(124, 58, 237, 0.15)';
+      });
+      
+      input.addEventListener('blur', function() {
+        this.style.transform = 'scale(1)';
+        this.style.boxShadow = 'none';
+      });
+    });
+    
+    // Formular-Absenden-Animation
+    const form = document.querySelector('form');
+    form.addEventListener('submit', function(e) {
+      const submitBtn = this.querySelector('.btn-submit');
+      submitBtn.innerHTML = '<i class="fas fa-spinner fa-spin"></i> Wird erstellt...';
+      submitBtn.disabled = true;
+    });
+
+    // Mindmap-Vorschau initialisieren
+    const mindmap = new MindMap.Visualization('cy', {
+      enableEditing: true,
+      onNodeClick: function(nodeData) {
+        console.log("Knoten ausgewählt:", nodeData);
+      }
+    });
+
+    // Formularfelder mit Mindmap verbinden
+    const nameInput = document.getElementById('name');
+    const descriptionInput = document.getElementById('description');
+
+    // Aktualisiere Mindmap wenn sich die Eingaben ändern
+    nameInput.addEventListener('input', function() {
+      if (mindmap.cy) {
+        const rootNode = mindmap.cy.$('#root');
+        if (rootNode.length > 0) {
+          rootNode.data('name', this.value || 'Neue Mindmap');
+        }
+      }
+    });
+
+    // Initialisiere die Mindmap
+    mindmap.initialize().then(() => {
+      console.log("Mindmap-Vorschau initialisiert");
+      
+      // Setze initiale Werte
+      if (nameInput.value) {
+        const rootNode = mindmap.cy.$('#root');
+        if (rootNode.length > 0) {
+          rootNode.data('name', nameInput.value);
+        }
+      }
+    }).catch(error => {
+      console.error("Fehler bei der Initialisierung der Mindmap:", error);
+    });
+  });
+</script>
+{% endblock %} 

templates/edit_mindmap.html

@@ -0,0 +1,525 @@
+{% extends "base.html" %}
+
+{% block title %}Mindmap bearbeiten{% endblock %}
+
+{% block extra_css %}
+<style>
+  /* Spezifische Stile für die Mindmap-Bearbeitungsseite */
+  .form-container {
+    background-color: var(--bg-secondary);
+    border-radius: 12px;
+    overflow: hidden;
+    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
+    transition: all 0.3s ease;
+  }
+  
+  body.dark .form-container {
+    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
+    border: 1px solid rgba(255, 255, 255, 0.05);
+  }
+  
+  body:not(.dark) .form-container {
+    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
+    border: 1px solid rgba(0, 0, 0, 0.05);
+  }
+  
+  .form-header {
+    padding: 1.5rem;
+    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
+  }
+  
+  body:not(.dark) .form-header {
+    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
+  }
+  
+  .form-body {
+    padding: 1.5rem;
+  }
+  
+  .form-group {
+    margin-bottom: 1.5rem;
+  }
+  
+  .form-label {
+    display: block;
+    margin-bottom: 0.5rem;
+    font-weight: 500;
+  }
+  
+  .form-input,
+  .form-textarea {
+    width: 100%;
+    padding: 0.75rem 1rem;
+    border-radius: 0.5rem;
+    transition: all 0.3s ease;
+  }
+  
+  body.dark .form-input,
+  body.dark .form-textarea {
+    background-color: rgba(15, 23, 42, 0.6);
+    border: 1px solid rgba(255, 255, 255, 0.1);
+    color: #f1f5f9;
+  }
+  
+  body:not(.dark) .form-input,
+  body:not(.dark) .form-textarea {
+    background-color: white;
+    border: 1px solid #e2e8f0;
+    color: #334155;
+  }
+  
+  body.dark .form-input:focus,
+  body.dark .form-textarea:focus {
+    border-color: #7c3aed;
+    box-shadow: 0 0 0 2px rgba(124, 58, 237, 0.2);
+    outline: none;
+  }
+  
+  body:not(.dark) .form-input:focus,
+  body:not(.dark) .form-textarea:focus {
+    border-color: #7c3aed;
+    box-shadow: 0 0 0 2px rgba(124, 58, 237, 0.2);
+    outline: none;
+  }
+  
+  .form-textarea {
+    min-height: 120px;
+    resize: vertical;
+  }
+  
+  .form-switch {
+    display: flex;
+    align-items: center;
+  }
+  
+  .form-switch input[type="checkbox"] {
+    height: 0;
+    width: 0;
+    visibility: hidden;
+    position: absolute;
+  }
+  
+  .form-switch label {
+    cursor: pointer;
+    width: 50px;
+    height: 25px;
+    background: rgba(100, 116, 139, 0.3);
+    display: block;
+    border-radius: 25px;
+    position: relative;
+    margin-right: 10px;
+    transition: all 0.3s ease;
+  }
+  
+  .form-switch label:after {
+    content: '';
+    position: absolute;
+    top: 3px;
+    left: 3px;
+    width: 19px;
+    height: 19px;
+    background: #fff;
+    border-radius: 19px;
+    transition: 0.3s;
+  }
+  
+  .form-switch input:checked + label {
+    background: #7c3aed;
+  }
+  
+  .form-switch input:checked + label:after {
+    left: calc(100% - 3px);
+    transform: translateX(-100%);
+  }
+  
+  .btn-submit {
+    background-color: #7c3aed;
+    color: white;
+    padding: 0.75rem 1.5rem;
+    border-radius: 0.5rem;
+    font-weight: 500;
+    transition: all 0.3s ease;
+    border: none;
+    cursor: pointer;
+    display: inline-flex;
+    align-items: center;
+    gap: 0.5rem;
+  }
+  
+  .btn-submit:hover {
+    background-color: #6d28d9;
+    transform: translateY(-2px);
+    box-shadow: 0 4px 12px rgba(109, 40, 217, 0.2);
+  }
+  
+  .btn-cancel {
+    background-color: transparent;
+    padding: 0.75rem 1.5rem;
+    border-radius: 0.5rem;
+    font-weight: 500;
+    transition: all 0.3s ease;
+    border: 1px solid;
+    cursor: pointer;
+    display: inline-flex;
+    align-items: center;
+    gap: 0.5rem;
+  }
+  
+  body.dark .btn-cancel {
+    color: #e2e8f0;
+    border-color: rgba(255, 255, 255, 0.1);
+  }
+  
+  body:not(.dark) .btn-cancel {
+    color: #475569;
+    border-color: #e2e8f0;
+  }
+  
+  .btn-cancel:hover {
+    transform: translateY(-2px);
+  }
+  
+  body.dark .btn-cancel:hover {
+    background-color: rgba(255, 255, 255, 0.05);
+  }
+  
+  body:not(.dark) .btn-cancel:hover {
+    background-color: rgba(0, 0, 0, 0.05);
+  }
+  
+  /* Animation für den Seiteneintritt */
+  @keyframes slideInUp {
+    from {
+      transform: translateY(20px);
+      opacity: 0;
+    }
+    to {
+      transform: translateY(0);
+      opacity: 1;
+    }
+  }
+  
+  .form-container {
+    animation: slideInUp 0.5s ease forwards;
+  }
+  
+  /* Animation für Hover-Effekte */
+  .input-animation {
+    transition: transform 0.3s ease, box-shadow 0.3s ease;
+  }
+  
+  .input-animation:focus {
+    transform: scale(1.01);
+  }
+</style>
+{% endblock %}
+
+{% block content %}
+<div class="container mx-auto px-4 py-8 animate-fadeIn">
+  <div class="max-w-3xl mx-auto">
+    <!-- Titel mit Animation -->
+    <div class="text-center mb-8 animate-pulse">
+      <h1 class="text-3xl font-bold mb-2 mystical-glow gradient-text">
+        Mindmap bearbeiten
+      </h1>
+      <p class="opacity-80">Aktualisiere die Details deiner Mindmap</p>
+    </div>
+    
+    <div class="form-container">
+      <div class="form-header">
+        <h2 class="text-xl font-semibold">Mindmap-Details</h2>
+      </div>
+      
+      <div class="form-body">
+        <form id="edit-mindmap-form">
+          <div class="form-group">
+            <label for="name" class="form-label">Name der Mindmap</label>
+            <input type="text" id="name" name="name" class="form-input input-animation" required
+                   placeholder="z.B. Meine Philosophie-Mindmap" value="{{ mindmap.name }}">
+          </div>
+          
+          <div class="form-group">
+            <label for="description" class="form-label">Beschreibung</label>
+            <textarea id="description" name="description" class="form-textarea input-animation"
+                      placeholder="Worum geht es in dieser Mindmap?">{{ mindmap.description }}</textarea>
+          </div>
+          
+          <div class="form-group">
+            <div class="form-switch">
+              <input type="checkbox" id="is_private" name="is_private" {% if mindmap.is_private %}checked{% endif %}>
+              <label for="is_private"></label>
+              <span>Private Mindmap (nur für dich sichtbar)</span>
+            </div>
+          </div>
+          
+          <div class="flex justify-between mt-6">
+            <a href="{{ url_for('my_account') }}" class="btn-cancel"> {# Zurück zur Kontoübersicht geändert #}
+              <i class="fas fa-arrow-left"></i>
+              Zurück
+            </a>
+            <button type="button" id="save-mindmap-details-btn" class="btn-submit"> {# type="button" und ID hinzugefügt #}
+              <i class="fas fa-save"></i>
+              Änderungen speichern
+            </button>
+          </div>
+        </form>
+
+        <!-- Mindmap-Editor -->
+        <div class="mt-8">
+          <h3 class="text-xl font-semibold mb-4">Mindmap bearbeiten</h3>
+          <div class="mindmap-container">
+            <div id="cy" class="w-full h-[600px] rounded-xl border"
+                 x-bind:class="darkMode ? 'border-gray-700' : 'border-gray-200'">
+            </div>
+          </div>
+          <!-- Bearbeitungshinweise -->
+          <div class="mt-4 text-sm opacity-80">
+            <p><i class="fas fa-info-circle mr-2"></i>Klicke auf Knoten zum Bearbeiten, ziehe sie zum Neuanordnen oder nutze die Toolbar für weitere Funktionen.</p>
+          </div>
+        </div>
+      </div>
+    </div>
+    
+    <!-- Tipps-Sektion -->
+    <div class="mt-8 p-5 rounded-lg border animate-fadeIn" 
+         x-bind:class="darkMode ? 'bg-slate-800/40 border-slate-700/50' : 'bg-white border-slate-200'">
+      <h3 class="text-xl font-semibold mb-3"
+          x-bind:class="darkMode ? 'text-white' : 'text-gray-800'">
+        <i class="fa-solid fa-lightbulb text-yellow-400 mr-2"></i>Tipps zum Bearbeiten einer Mindmap
+      </h3>
+      <div x-bind:class="darkMode ? 'text-gray-300' : 'text-gray-600'">
+        <ul class="list-disc pl-5 space-y-2">
+          <li>Überprüfe, ob der Name noch zum aktuellen Inhalt passt</li>
+          <li>Aktualisiere die Beschreibung, um neue Aspekte zu berücksichtigen</li>
+          <li>Entscheide, ob die Sichtbarkeitseinstellungen noch passend sind</li>
+          <li>Nutze aussagekräftige Namen für bessere Auffindbarkeit</li>
+          <li>Behalte die Konsistenz mit verknüpften Konzepten im Auge</li>
+        </ul>
+      </div>
+    </div>
+  </div>
+</div>
+{% endblock %}
+
+{% block extra_js %}
+<script src="https://cdnjs.cloudflare.com/ajax/libs/cytoscape/3.26.0/cytoscape.min.js"></script>
+<script src="https://cdnjs.cloudflare.com/ajax/libs/cytoscape-cose-bilkent/4.1.0/cytoscape-cose-bilkent.min.js"></script>
+<script nonce="{{ csp_nonce }}">
+  document.addEventListener('DOMContentLoaded', function() {
+    // Einfache Animationen für die Eingabefelder
+    const inputs = document.querySelectorAll('.input-animation');
+    
+    inputs.forEach(input => {
+      // Subtile Skalierung bei Fokus
+      input.addEventListener('focus', function() {
+        this.style.transform = 'scale(1.01)';
+        this.style.boxShadow = '0 4px 12px rgba(124, 58, 237, 0.15)';
+      });
+      
+      input.addEventListener('blur', function() {
+        this.style.transform = 'scale(1)';
+        this.style.boxShadow = 'none';
+      });
+    });
+    
+    // Formular-Absenden-Logik für Metadaten
+    const editMindmapForm = document.getElementById('edit-mindmap-form');
+    const saveDetailsBtn = document.getElementById('save-mindmap-details-btn');
+
+    if (saveDetailsBtn && editMindmapForm) {
+      saveDetailsBtn.addEventListener('click', async function(event) {
+        event.preventDefault();
+        
+        const nameInput = document.getElementById('name');
+        const descriptionInput = document.getElementById('description');
+        const isPrivateInput = document.getElementById('is_private');
+
+        const mindmapId = "{{ mindmap.id }}"; // Sicherstellen, dass mindmap.id hier verfügbar ist
+
+        const data = {
+          name: nameInput.value,
+          description: descriptionInput.value,
+          is_private: isPrivateInput.checked
+          // Die 'data' (Knoten/Kanten) wird separat vom Cytoscape-Editor gehandhabt
+        };
+
+        saveDetailsBtn.innerHTML = '<i class="fas fa-spinner fa-spin"></i> Wird gespeichert...';
+        saveDetailsBtn.disabled = true;
+
+        try {
+          const response = await fetch(`/api/mindmaps/${mindmapId}`, {
+            method: 'PUT',
+            headers: {
+              'Content-Type': 'application/json'
+            },
+            body: JSON.stringify(data)
+          });
+
+          if (response.ok) {
+            const result = await response.json();
+            showStatus('Metadaten erfolgreich gespeichert!', false);
+            // Optional: Weiterleitung oder Aktualisierung der Seiteninhalte
+            // window.location.href = "{{ url_for('my_account') }}";
+          } else {
+            const errorData = await response.json();
+            console.error('Fehler beim Speichern der Metadaten:', errorData);
+            showStatus(`Fehler: ${errorData.error || response.statusText}`, true);
+          }
+        } catch (error) {
+          console.error('Netzwerkfehler oder anderer Fehler:', error);
+          showStatus('Speichern fehlgeschlagen. Netzwerkproblem?', true);
+        } finally {
+          saveDetailsBtn.innerHTML = '<i class="fas fa-save"></i> Änderungen speichern';
+          saveDetailsBtn.disabled = false;
+        }
+      });
+    }
+
+    // Mindmap initialisieren
+    const mindmap = new MindMap.Visualization('cy', {
+      enableEditing: true,
+      apiEndpoint: '/api/mindmap/{{ mindmap.id }}',
+      onNodeClick: function(nodeData) {
+        console.log("Knoten ausgewählt:", nodeData);
+      },
+      onChange: function(dataFromCytoscape) {
+        // Automatisches Speichern bei Änderungen der Mindmap-Struktur
+        // Die Metadaten (Name, Beschreibung, is_private) werden separat über das Formular oben gespeichert.
+        // Diese onChange Funktion kümmert sich nur um die Strukturdaten (Knoten/Kanten).
+        const mindmapId = "{{ mindmap.id }}";
+
+        // Debounce-Funktion, um API-Aufrufe zu limitieren
+        let debounceTimer;
+        const debounceSaveStructure = (currentMindmapData) => {
+          clearTimeout(debounceTimer);
+          debounceTimer = setTimeout(() => {
+            // Der Backend-Endpunkt PUT /api/mindmaps/<id> erwartet ein Objekt,
+            // das die zu aktualisierenden Felder enthält. Für die Struktur ist das 'data'.
+            const payload = {
+              data: currentMindmapData // Dies sind die von Cytoscape gelieferten Strukturdaten
+            };
+            
+            // showStatus('Speichere Struktur...', false); // Status wird jetzt über Event gehandhabt
+            fetch(`/api/mindmaps/${mindmapId}`, { // Endpunkt angepasst
+              method: 'PUT', // Methode zu PUT geändert
+              headers: {
+                'Content-Type': 'application/json'
+              },
+              body: JSON.stringify(payload) // Sende die Mindmap-Daten als { data: ... }
+            }).then(response => {
+              if (!response.ok) {
+                response.json().then(err => {
+                  console.error('Fehler beim Speichern der Struktur:', err);
+                  document.dispatchEvent(new CustomEvent('mindmapError', { detail: { message: `Struktur: ${err.message || err.error || 'Speicherfehler'}` } }));
+                }).catch(() => {
+                  console.error('Fehler beim Speichern der Struktur, Status:', response.statusText);
+                  document.dispatchEvent(new CustomEvent('mindmapError', { detail: { message: `Struktur: ${response.statusText}` } }));
+                });
+                // throw new Error('Netzwerkfehler beim Speichern der Struktur'); // Wird schon behandelt
+                return; // Verhindere weitere Verarbeitung bei Fehler
+              }
+              return response.json();
+            }).then(responseData => {
+              if (responseData) { // Nur wenn response.ok war
+                console.log('Mindmap-Struktur erfolgreich gespeichert:', responseData);
+                // Die responseData von einem PUT könnte die aktualisierte Mindmap oder nur eine Erfolgsmeldung sein.
+                // Annahme: { message: "Mindmap updated successfully", mindmap: { ... } } oder ähnlich
+                document.dispatchEvent(new CustomEvent('mindmapSaved', { detail: { message: 'Struktur aktualisiert!' }}));
+              }
+            }).catch(error => {
+              console.error('Netzwerkfehler oder anderer Fehler beim Speichern der Struktur:', error);
+              // Vermeide doppelte Fehlermeldung, falls schon durch !response.ok behandelt
+              if (!document.querySelector('.bg-red-500')) { // Prüft, ob schon eine Fehlermeldung angezeigt wird
+                 document.dispatchEvent(new CustomEvent('mindmapError', { detail: { message: 'Struktur: Netzwerkfehler' } }));
+              }
+            });
+          }, 1500); // Speichern 1.5 Sekunden nach der letzten Änderung
+        };
+        
+        debounceSaveStructure(dataFromCytoscape); // Aufruf der Debounce-Funktion mit Cytoscape-Daten
+      }
+    });
+
+    // Die Verknüpfung der Formularfelder (Name, Beschreibung) mit dem Cytoscape Root-Knoten wird entfernt,
+    // da die Metadaten nun über das separate Formular oben gespeichert werden und nicht mehr direkt
+    // die Cytoscape-Daten manipulieren sollen. Die Logik für mindmap.saveToServer() wurde entfernt,
+    // da das Speichern jetzt über den onChange Handler mit PUT /api/mindmaps/<id> erfolgt.
+    // const nameInput = document.getElementById('name'); // Bereits oben deklariert für Metadaten
+    // nameInput.removeEventListener('input', ...); // Event Listener muss hier nicht entfernt werden, da er nicht neu hinzugefügt wird.
+
+    // Initialisiere die Mindmap mit existierenden Daten
+    mindmap.initialize().then(() => {
+      console.log("Mindmap-Editor initialisiert");
+      const mindmapId = "{{ mindmap.id }}";
+      
+      // Lade existierende Daten für die Mindmap-Struktur
+      fetch(`/api/mindmaps/${mindmapId}`, { // Endpunkt für GET angepasst
+        method: 'GET',
+        headers: {
+          'Accept': 'application/json'
+        }
+      })
+        .then(response => {
+          if (!response.ok) {
+            response.json().then(err => {
+                 showStatus(`Fehler beim Laden: ${err.message || err.error || response.statusText}`, true);
+            }).catch(() => {
+                 showStatus(`Fehler beim Laden: ${response.statusText}`, true);
+            });
+            throw new Error(`Netzwerkantwort war nicht ok: ${response.statusText}`);
+          }
+          return response.json();
+        })
+        .then(mindmapDataFromServer => {
+          // Die API GET /api/mindmaps/<id> gibt ein Objekt zurück, das { id, name, description, is_private, data, ... } enthält.
+          // Wir brauchen nur den 'data'-Teil (Struktur) für Cytoscape.
+          // Die Metadaten (name, description, is_private) werden bereits serverseitig in die Formularfelder gerendert.
+          if (mindmapDataFromServer && mindmapDataFromServer.data) {
+            mindmap.loadData(mindmapDataFromServer.data); // Lade nur die Strukturdaten
+            console.log("Mindmap-Strukturdaten geladen:", mindmapDataFromServer.data);
+            showStatus("Mindmap geladen.", false);
+          } else {
+            console.error("Fehler: Mindmap-Daten (Struktur) nicht im erwarteten Format:", mindmapDataFromServer);
+            showStatus("Fehler: Mindmap-Struktur konnte nicht geladen werden (Formatfehler).", true);
+          }
+        })
+        .catch(error => {
+          console.error("Fehler beim Laden der Mindmap-Strukturdaten:", error);
+          if (!document.querySelector('.bg-red-500')) { // Prüft, ob schon eine Fehlermeldung angezeigt wird
+            showStatus("Laden der Struktur fehlgeschlagen.", true);
+          }
+        });
+    }).catch(error => {
+      console.error("Fehler bei der Initialisierung des Editors:", error);
+    });
+
+    // Autosave-Status Anzeige
+    const statusIndicator = document.createElement('div');
+    statusIndicator.className = 'fixed bottom-4 right-4 px-4 py-2 rounded-full text-sm transition-all duration-300';
+    document.body.appendChild(statusIndicator);
+
+    // Zeige Speicherstatus
+    function showStatus(message, isError = false) {
+      statusIndicator.textContent = message;
+      statusIndicator.className = `fixed bottom-4 right-4 px-4 py-2 rounded-full text-sm transition-all duration-300 ${
+        isError
+          ? 'bg-red-500 text-white'
+          : 'bg-green-500 text-white'
+      }`;
+      setTimeout(() => {
+        statusIndicator.className = 'fixed bottom-4 right-4 px-4 py-2 rounded-full text-sm transition-all duration-300 opacity-0';
+      }, 2000);
+    }
+
+    // Event-Listener für Speicherstatus
+    document.addEventListener('mindmapSaved', (event) => {
+      const message = event.detail && event.detail.message ? event.detail.message : 'Erfolgreich gespeichert!';
+      showStatus(message, false);
+    });
+
+    document.addEventListener('mindmapError', (event) => {
+      showStatus(event.detail.message, true);
+    });
+  });
+</script>
+{% endblock %}

templates/errors/400.html

@@ -0,0 +1,48 @@
+{% extends "base.html" %}
+
+{% block title %}400 - Ungültige Anfrage{% endblock %}
+
+{% block content %}
+<div class="container mx-auto max-w-4xl px-4 py-8">
+    <div class="bg-white dark:bg-gray-800 rounded-lg shadow-xl p-8 border border-gray-200 dark:border-gray-700">
+        <div class="text-center mb-8">
+            <div class="text-6xl font-bold text-red-500 mb-4">400</div>
+            <h1 class="text-3xl font-bold mb-2">Ungültige Anfrage</h1>
+            <p class="text-gray-600 dark:text-gray-400">Die Anfrage konnte nicht verarbeitet werden.</p>
+        </div>
+
+        <div class="mb-8 p-4 border border-red-200 dark:border-red-900 bg-red-50 dark:bg-red-900/20 rounded-lg">
+            <div class="flex items-start">
+                <div class="flex-shrink-0">
+                    <svg class="h-5 w-5 text-red-500" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 20 20" fill="currentColor">
+                        <path fill-rule="evenodd" d="M10 18a8 8 0 100-16 8 8 0 000 16zM8.707 7.293a1 1 0 00-1.414 1.414L8.586 10l-1.293 1.293a1 1 0 101.414 1.414L10 11.414l1.293 1.293a1 1 0 001.414-1.414L11.414 10l1.293-1.293a1 1 0 00-1.414-1.414L10 8.586 8.707 7.293z" clip-rule="evenodd" />
+                    </svg>
+                </div>
+                <div class="ml-3">
+                    <h3 class="text-sm font-medium text-red-800 dark:text-red-400">Fehlerbeschreibung</h3>
+                    <div class="mt-2 text-sm text-red-700 dark:text-red-300">
+                        {% if error %}
+                        <p>{{ error }}</p>
+                        {% else %}
+                        <p>Die Anfrage enthält ungültige oder fehlerhafte Daten und konnte nicht verarbeitet werden.</p>
+                        {% endif %}
+                    </div>
+                </div>
+            </div>
+        </div>
+
+        <div class="text-center">
+            <p class="mb-4 text-gray-600 dark:text-gray-400">Hier sind einige Dinge, die Sie versuchen können:</p>
+            <ul class="list-disc list-inside text-left max-w-md mx-auto mb-6 text-gray-600 dark:text-gray-400">
+                <li>Überprüfen Sie Ihre Eingaben auf Fehler.</li>
+                <li>Stellen Sie sicher, dass Sie die richtigen Daten übermittelt haben.</li>
+                <li>Versuchen Sie, die Seite neu zu laden.</li>
+                <li>Kehren Sie zur Startseite zurück und versuchen Sie es erneut.</li>
+            </ul>
+            <a href="{{ url_for('index') }}" class="inline-flex items-center px-4 py-2 border border-transparent text-sm font-medium rounded-md shadow-sm text-white bg-blue-600 hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-blue-500">
+                Zurück zur Startseite
+            </a>
+        </div>
+    </div>
+</div>
+{% endblock %}

templates/index.html

@@ -39,6 +39,35 @@
     animation: textReveal 1s cubic-bezier(0.77, 0, 0.18, 1) forwards;
   }
   
+  /* Marker-Animation für den Text */
+  @keyframes markerAnimation {
+    0% { width: 0; opacity: 0; }
+    20% { width: 100%; opacity: 0.7; }
+    80% { width: 100%; opacity: 0.7; }
+    100% { width: 0; opacity: 0; }
+  }
+  
+  .marker-animation {
+    position: relative;
+  }
+  
+  .marker-animation::after {
+    content: '';
+    position: absolute;
+    bottom: 0;
+    left: 0;
+    height: 6px;
+    width: 0;
+    background: linear-gradient(to right, rgba(109, 40, 217, 0.3), rgba(139, 92, 246, 0.6), rgba(109, 40, 217, 0.3));
+    border-radius: 3px;
+    opacity: 0;
+    animation: markerAnimation 2.5s ease-in-out forwards;
+  }
+  
+  .marker-animation-delay::after {
+    animation-delay: 1.5s;
+  }
+  
   .delay-1 { animation-delay: 0.2s; }
   .delay-2 { animation-delay: 0.4s; }
   .delay-3 { animation-delay: 0.6s; }
@@ -71,16 +100,20 @@
   
   /* Chat section styles */
   .embedded-chat {
-    height: 350px;
+    height: 500px;
     border-radius: 1rem;
     overflow: hidden;
     transition: all 0.3s ease;
     border: 1px solid;
+    display: flex;
+    flex-direction: column;
+    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 5px 10px -5px rgba(0, 0, 0, 0.05);
   }
   
   .dark .embedded-chat {
     background-color: rgba(17, 24, 39, 0.7);
     border-color: rgba(109, 40, 217, 0.2);
+    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.3), 0 5px 10px -5px rgba(0, 0, 0, 0.2);
   }
   
   .embedded-chat {
@@ -89,9 +122,118 @@
   }
   
   #embedded-chat-messages {
-    height: 250px;
+    flex: 1;
     overflow-y: auto;
+    padding: 1.25rem;
+    min-height: 320px;
+  }
+  
+  .chat-input-container {
+    padding: 1.25rem;
+    border-top: 1px solid;
+    background-color: rgba(255, 255, 255, 0.3);
+  }
+  
+  .dark .chat-input-container {
+    background-color: rgba(17, 24, 39, 0.6);
+    border-color: rgba(75, 85, 99, 0.4);
+  }
+  
+  .mystical-input {
+    background-color: rgba(255, 255, 255, 0.8);
+    border: 1px solid rgba(209, 213, 219, 0.5);
+    color: #4B5563;
+    padding: 0.75rem 1rem;
+    border-radius: 0.5rem;
+    outline: none;
+    transition: all 0.3s ease;
+    width: 100%;
+    font-size: 1rem;
+  }
+  
+  .dark .mystical-input {
+    background-color: rgba(31, 41, 55, 0.7);
+    border-color: rgba(75, 85, 99, 0.4);
+    color: #E5E7EB;
+  }
+  
+  .mystical-input:focus {
+    border-color: rgba(139, 92, 246, 0.5);
+    box-shadow: 0 0 0 2px rgba(139, 92, 246, 0.2);
+  }
+  
+  .dark .mystical-input:focus {
+    border-color: rgba(139, 92, 246, 0.5);
+    box-shadow: 0 0 0 2px rgba(139, 92, 246, 0.3);
+  }
+  
+  /* Verbesserte Lesbarkeit für Chat-Nachrichten */
+  .chat-message {
+    margin-bottom: 1.25rem;
+  }
+  
+  .chat-bubble {
     padding: 1rem;
+    border-radius: 0.75rem;
+    max-width: 85%;
+    font-size: 1rem;
+    line-height: 1.5;
+  }
+  
+  .assistant-bubble {
+    background-color: rgba(243, 244, 246, 0.95);
+    color: #374151;
+  }
+  
+  .dark .assistant-bubble {
+    background-color: rgba(31, 41, 55, 0.95);
+    color: #E5E7EB;
+  }
+  
+  .user-bubble {
+    background-color: rgba(139, 92, 246, 0.15);
+    color: #4B5563;
+  }
+  
+  .dark .user-bubble {
+    background-color: rgba(124, 58, 237, 0.3);
+    color: #E5E7EB;
+  }
+  
+  /* Beispiel-Buttons verbessert */
+  .quick-query-container {
+    margin-top: 0.75rem;
+    display: flex;
+    flex-wrap: wrap;
+    gap: 0.5rem;
+    align-items: center;
+  }
+  
+  .quick-query-btn {
+    font-size: 0.8rem;
+    padding: 0.4rem 0.75rem;
+    border-radius: 2rem;
+    background-color: rgba(243, 244, 246, 0.8);
+    color: #4B5563;
+    cursor: pointer;
+    transition: all 0.2s ease;
+    white-space: nowrap;
+    border: 1px solid rgba(209, 213, 219, 0.5);
+  }
+  
+  .dark .quick-query-btn {
+    background-color: rgba(55, 65, 81, 0.8);
+    color: #E5E7EB;
+    border-color: rgba(75, 85, 99, 0.4);
+  }
+  
+  .quick-query-btn:hover {
+    background-color: rgba(229, 231, 235, 0.9);
+    transform: translateY(-1px);
+  }
+  
+  .dark .quick-query-btn:hover {
+    background-color: rgba(75, 85, 99, 0.9);
   }
   
   /* Chat typing indicator */
@@ -131,16 +273,9 @@
   <div class="max-w-screen-xl mx-auto px-4 sm:px-6 lg:px-8 relative z-10">
     <div class="text-center mb-16">
       <h1 class="hero-heading mb-8 text-gray-900 dark:text-white">
-        <div class="overflow-hidden">
+        <div class="overflow-hidden flex justify-center gap-6">
-          <span class="gradient-text inline-block text-reveal">Wissen</span>
+          <span class="relative inline-block text-reveal marker-animation">Wissen.</span>
-        </div>
+          <span class="relative inline-block text-reveal delay-1 marker-animation marker-animation-delay">Vernetzen.</span>
-        <div class="overflow-hidden mt-2">
-          <span class="inline-block text-reveal delay-1">neu</span>
-        </div>
-        <div class="mt-2 relative overflow-hidden">
-          <span class="relative inline-block text-reveal delay-2">vernetzen
-            <div class="absolute -bottom-2 left-0 right-0 h-1 bg-gradient-to-r from-purple-500/0 via-purple-500/70 to-purple-500/0 rounded-full"></div>
-          </span>
         </div>
       </h1>
       <div class="overflow-hidden">
@@ -179,6 +314,12 @@
         <div class="text-center">
           <div class="text-3xl font-bold gradient-text mb-2 animate-float">Systades</div>
           <div class="text-lg text-gray-700 dark:text-gray-300">WISSEN VERNETZEN</div>
+          <!-- Animierte Pfeilspitze -->
+          <div class="mt-6 flex justify-center">
+            <svg width="20" height="12" viewBox="0 0 20 12" fill="none" xmlns="http://www.w3.org/2000/svg" class="text-white animate-bounce-slow">
+              <path d="M10 12L0 2L2 0L10 8L18 0L20 2L10 12Z" fill="currentColor" fill-opacity="0.7"/>
+            </svg>
+          </div>
         </div>
       </div>
     </div>
@@ -271,14 +412,14 @@
         </div>
         
         <!-- Chat Messages -->
-        <div id="embedded-chat-messages" class="border-b border-gray-200 dark:border-gray-700">
+        <div id="embedded-chat-messages" class="border-b-0">
           <!-- Assistant Message -->
-          <div class="mb-4 flex">
+          <div class="chat-message flex">
-            <div class="w-8 h-8 rounded-full bg-gradient-to-r from-purple-600 to-indigo-600 flex items-center justify-center text-white mr-2 flex-shrink-0">
+            <div class="w-9 h-9 rounded-full bg-gradient-to-r from-purple-600 to-indigo-600 flex items-center justify-center text-white mr-3 flex-shrink-0">
               <i class="fa-solid fa-robot text-sm"></i>
             </div>
-            <div class="bg-gray-100 dark:bg-gray-800 rounded-lg p-3 max-w-[80%]">
+            <div class="chat-bubble assistant-bubble">
-              <div class="text-gray-700 dark:text-gray-300 markdown-content">
+              <div class="markdown-content">
                 <p>Hallo! Ich bin dein Systades-Assistent. Wie kann ich dir heute helfen?</p>
                 <p>Du kannst mir Fragen zu:</p>
                 <ul>
@@ -292,24 +433,24 @@
           </div>
           
           <!-- User Message -->
-          <div class="mb-4 flex justify-end">
+          <div class="chat-message flex justify-end">
-            <div class="bg-purple-100 dark:bg-purple-900/30 rounded-lg p-3 max-w-[80%]">
+            <div class="chat-bubble user-bubble">
-              <p class="text-gray-800 dark:text-gray-200">
+              <p>
                 Kann ich mit deiner Hilfe eine Mindmap zum Thema Künstliche Intelligenz erstellen?
               </p>
             </div>
-            <div class="w-8 h-8 rounded-full bg-gray-300 dark:bg-gray-600 flex items-center justify-center text-gray-700 dark:text-gray-300 ml-2 flex-shrink-0">
+            <div class="w-9 h-9 rounded-full bg-gray-300 dark:bg-gray-600 flex items-center justify-center text-gray-700 dark:text-gray-300 ml-3 flex-shrink-0">
               <i class="fa-solid fa-user text-sm"></i>
             </div>
           </div>
           
           <!-- Assistant Response -->
-          <div class="mb-4 flex" id="demo-ai-response">
+          <div class="chat-message flex" id="demo-ai-response">
-            <div class="w-8 h-8 rounded-full bg-gradient-to-r from-purple-600 to-indigo-600 flex items-center justify-center text-white mr-2 flex-shrink-0">
+            <div class="w-9 h-9 rounded-full bg-gradient-to-r from-purple-600 to-indigo-600 flex items-center justify-center text-white mr-3 flex-shrink-0">
               <i class="fa-solid fa-robot text-sm"></i>
             </div>
-            <div class="bg-gray-100 dark:bg-gray-800 rounded-lg p-3 max-w-[80%]">
+            <div class="chat-bubble assistant-bubble">
-              <div class="text-gray-700 dark:text-gray-300 markdown-content">
+              <div class="markdown-content">
                 <p>Ja, natürlich! Ich kann dir dabei helfen, eine Mindmap zum Thema <strong>Künstliche Intelligenz</strong> zu erstellen.</p>
                 <p>Du kannst wie folgt vorgehen:</p>
                 <ol>
@@ -325,19 +466,19 @@
         </div>
         
         <!-- Chat Input -->
-        <div class="p-4">
+        <div class="chat-input-container">
           <div class="flex">
             <input type="text" placeholder="Stelle eine Frage..." class="mystical-input flex-grow" disabled>
-            <button class="ml-2 bg-gradient-to-r from-purple-600 to-indigo-600 text-white p-2 rounded-lg disabled:opacity-50" disabled>
+            <button class="ml-3 bg-gradient-to-r from-purple-600 to-indigo-600 text-white px-3 py-2 rounded-lg disabled:opacity-50 flex-shrink-0 hover:shadow-md transition-all duration-200" disabled>
               <i class="fa-solid fa-paper-plane"></i>
             </button>
           </div>
           <!-- Quick Queries -->
-          <div class="mt-3 flex flex-wrap gap-2">
+          <div class="quick-query-container">
-            <span class="text-xs text-gray-500 dark:text-gray-400 mr-1">Beispiele:</span>
+            <span class="text-sm text-gray-500 dark:text-gray-400 mr-1">Beispiele:</span>
-            <button data-question="Was sind die wichtigsten Grundlagen der Künstlichen Intelligenz?" class="quick-query-btn text-xs px-2 py-1 rounded-full bg-gray-200 dark:bg-gray-700 text-gray-700 dark:text-gray-300 hover:bg-gray-300 dark:hover:bg-gray-600 cursor-pointer transition-colors">KI-Grundlagen</button>
+            <button data-question="Was sind die wichtigsten Grundlagen der Künstlichen Intelligenz?" class="quick-query-btn hover:shadow-sm">KI-Grundlagen</button>
-            <button data-question="Wie kann ich eine Mindmap zum Thema Neuronale Netzwerke erstellen?" class="quick-query-btn text-xs px-2 py-1 rounded-full bg-gray-200 dark:bg-gray-700 text-gray-700 dark:text-gray-300 hover:bg-gray-300 dark:hover:bg-gray-600 cursor-pointer transition-colors">Mindmap erstellen</button>
+            <button data-question="Wie kann ich eine Mindmap zum Thema Neuronale Netzwerke erstellen?" class="quick-query-btn hover:shadow-sm">Mindmap erstellen</button>
-            <button data-question="Zeige mir alle verfügbaren Kategorien in der Datenbank" class="quick-query-btn text-xs px-2 py-1 rounded-full bg-gray-200 dark:bg-gray-700 text-gray-700 dark:text-gray-300 hover:bg-gray-300 dark:hover:bg-gray-600 cursor-pointer transition-colors">Datenbank durchsuchen</button>
+            <button data-question="Zeige mir alle verfügbaren Kategorien in der Datenbank" class="quick-query-btn hover:shadow-sm">Datenbank durchsuchen</button>
           </div>
         </div>
       </div>

templates/mindmap.html

@@ -1,234 +1,705 @@
-<!DOCTYPE html>
+{% extends "base.html" %}
-<html lang="de">
+
-<head>
+{% block title %}Interaktive Mindmap{% endblock %}
-  <meta charset="UTF-8">
+
-  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+{% block extra_css %}
-  <title>Interaktive Mindmap</title>
+<style>
+  /* Grundlegendes Layout */
+  .mindmap-container {
+    position: relative;
+    width: 100%;
+    height: calc(100vh - 64px);
+    background: linear-gradient(135deg, #1a1f2e 0%, #0f172a 100%);
+    overflow: hidden;
+  }
+
+  /* Hauptcontainer für die Mindmap */
+  #cy {
+    width: 100%;
+    height: 100%;
+    background: transparent;
+  }
+
+  /* Zoom-Toolbar */
+  .mindmap-toolbar {
+    position: absolute;
+    top: 80px;
+    left: 50%;
+    transform: translateX(-50%);
+    display: flex;
+    gap: 8px;
+    padding: 8px;
+    background: rgba(30, 41, 59, 0.8);
+    border-radius: 8px;
+    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
+    z-index: 10;
+    backdrop-filter: blur(8px);
+    border: 1px solid rgba(255, 255, 255, 0.1);
+  }
   
-  <!-- Cytoscape.js -->
+  .mindmap-toolbar button {
-  <script src="https://cdnjs.cloudflare.com/ajax/libs/cytoscape/3.26.0/cytoscape.min.js"></script>
+    width: 40px;
+    height: 40px;
+    border: none;
+    background: rgba(255, 255, 255, 0.1);
+    color: white;
+    border-radius: 6px;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    cursor: pointer;
+    transition: all 0.2s ease;
+  }
   
-  <!-- Socket.IO -->
+  .mindmap-toolbar button:hover {
-  <script src="https://cdnjs.cloudflare.com/ajax/libs/socket.io/4.7.2/socket.io.min.js"></script>
+    background: rgba(139, 92, 246, 0.5);
+    transform: translateY(-2px);
+  }
   
-  <!-- Feather Icons (optional) -->
+  .mindmap-toolbar button i {
-  <script src="https://cdn.jsdelivr.net/npm/feather-icons/dist/feather.min.js"></script>
+    font-size: 16px;
+  }
+
+  /* Header-Bereich */
+  .mindmap-header {
+    position: absolute;
+    top: 0;
+    left: 0;
+    right: 0;
+    padding: 1.5rem;
+    background: rgba(15, 23, 42, 0.8);
+    backdrop-filter: blur(10px);
+    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
+    z-index: 10;
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+  }
+
+  .mindmap-title {
+    font-size: 2rem;
+    font-weight: 700;
+    color: #fff;
+    margin: 0;
+    background: linear-gradient(90deg, #60a5fa, #8b5cf6);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+  }
+
+  /* Aktionsmenü im Header */
+  .mindmap-actions {
+    display: flex;
+    gap: 0.75rem;
+  }
+
+  .action-button {
+    display: inline-flex;
+    align-items: center;
+    justify-content: center;
+    gap: 0.5rem;
+    padding: 0.5rem 1rem;
+    background: rgba(255, 255, 255, 0.1);
+    color: white;
+    border: 1px solid rgba(255, 255, 255, 0.2);
+    border-radius: 0.5rem;
+    font-size: 0.9rem;
+    cursor: pointer;
+    transition: all 0.3s ease;
+  }
+
+  .action-button:hover {
+    background: rgba(255, 255, 255, 0.2);
+  }
+
+  .action-button.primary {
+    background: rgba(139, 92, 246, 0.3);
+  }
+
+  .action-button.primary:hover {
+    background: rgba(139, 92, 246, 0.5);
+  }
+
+  .action-button.danger {
+    background: rgba(220, 38, 38, 0.3);
+  }
+
+  .action-button.danger:hover {
+    background: rgba(220, 38, 38, 0.5);
+  }
+
+  /* Kontrollpanel */
+  .control-panel {
+    position: absolute;
+    right: 2rem;
+    top: 50%;
+    transform: translateY(-50%);
+    background: rgba(15, 23, 42, 0.9);
+    border-radius: 1rem;
+    padding: 1.5rem;
+    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
+    z-index: 10;
+    border: 1px solid rgba(255, 255, 255, 0.1);
+  }
+
+  .control-button {
+    display: flex;
+    align-items: center;
+    padding: 0.75rem 1rem;
+    margin: 0.5rem 0;
+    background: rgba(255, 255, 255, 0.1);
+    border: none;
+    border-radius: 0.5rem;
+    color: #fff;
+    cursor: pointer;
+    transition: all 0.3s ease;
+  }
+
+  .control-button:hover {
+    background: rgba(255, 255, 255, 0.2);
+    transform: translateX(-5px);
+  }
+
+  .control-button i {
+    margin-right: 0.75rem;
+  }
+
+  /* CRUD Panel */
+  .crud-panel {
+    position: absolute;
+    bottom: 2rem;
+    left: 50%;
+    transform: translateX(-50%);
+    background: rgba(15, 23, 42, 0.9);
+    border-radius: 1rem;
+    padding: 1rem;
+    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
+    z-index: 10;
+    border: 1px solid rgba(255, 255, 255, 0.1);
+    display: flex;
+    gap: 0.75rem;
+    backdrop-filter: blur(8px);
+  }
+
+  .crud-button {
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+    justify-content: center;
+    width: 4rem;
+    height: 4rem;
+    background: rgba(255, 255, 255, 0.1);
+    border: 1px solid rgba(255, 255, 255, 0.2);
+    border-radius: 0.75rem;
+    color: white;
+    cursor: pointer;
+    transition: all 0.3s ease;
+  }
+
+  .crud-button:hover {
+    background: rgba(255, 255, 255, 0.2);
+    transform: translateY(-5px);
+  }
+
+  .crud-button i {
+    font-size: 1.25rem;
+    margin-bottom: 0.25rem;
+  }
+
+  .crud-button span {
+    font-size: 0.7rem;
+    text-align: center;
+  }
+
+  .crud-button.create {
+    background: rgba(16, 185, 129, 0.3);
+  }
+
+  .crud-button.create:hover {
+    background: rgba(16, 185, 129, 0.5);
+  }
+
+  .crud-button.edit {
+    background: rgba(245, 158, 11, 0.3);
+  }
+
+  .crud-button.edit:hover {
+    background: rgba(245, 158, 11, 0.5);
+  }
+
+  .crud-button.delete {
+    background: rgba(220, 38, 38, 0.3);
+  }
+
+  .crud-button.delete:hover {
+    background: rgba(220, 38, 38, 0.5);
+  }
+
+  .crud-button.save {
+    background: rgba(59, 130, 246, 0.3);
+  }
+
+  .crud-button.save:hover {
+    background: rgba(59, 130, 246, 0.5);
+  }
+
+  /* Info-Panel */
+  .info-panel {
+    position: absolute;
+    left: 2rem;
+    top: 50%;
+    transform: translateY(-50%);
+    background: rgba(15, 23, 42, 0.9);
+    border-radius: 1rem;
+    padding: 1.5rem;
+    width: 300px;
+    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
+    z-index: 10;
+    border: 1px solid rgba(255, 255, 255, 0.1);
+    opacity: 0;
+    transform: translateX(-20px);
+    transition: all 0.3s ease;
+  }
+
+  .info-panel.visible {
+    opacity: 1;
+    transform: translateY(-50%) translateX(0);
+  }
+
+  .info-title {
+    font-size: 1.25rem;
+    font-weight: 600;
+    color: #fff;
+    margin-bottom: 1rem;
+    padding-bottom: 0.5rem;
+    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
+  }
+
+  .info-content {
+    color: rgba(255, 255, 255, 0.8);
+    font-size: 0.95rem;
+    line-height: 1.6;
+  }
+
+  /* Kategorie-Legende */
+  .category-legend {
+    position: absolute;
+    bottom: 2rem;
+    left: 50%;
+    transform: translateX(-50%);
+    background: rgba(15, 23, 42, 0.9);
+    border-radius: 1rem;
+    padding: 1rem 2rem;
+    display: flex;
+    gap: 1.5rem;
+    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
+    z-index: 10;
+    border: 1px solid rgba(255, 255, 255, 0.1);
+  }
+
+  .category-item {
+    display: flex;
+    align-items: center;
+    color: rgba(255, 255, 255, 0.8);
+    font-size: 0.9rem;
+  }
+
+  .category-color {
+    width: 12px;
+    height: 12px;
+    border-radius: 50%;
+    margin-right: 0.5rem;
+  }
+
+  /* Animationen */
+  @keyframes pulse {
+    0% { transform: scale(1); }
+    50% { transform: scale(1.05); }
+    100% { transform: scale(1); }
+  }
+
+  .pulse {
+    animation: pulse 2s infinite;
+  }
   
-  <style>
+  /* Ladeanzeige */
-    * {
+  .loader {
-      box-sizing: border-box;
+    border: 4px solid rgba(255, 255, 255, 0.1);
-      margin: 0;
+    border-radius: 50%;
-      padding: 0;
+    border-top: 4px solid #60a5fa;
-    }
+    width: 40px;
-    
+    height: 40px;
-    body {
+    animation: spin 1s linear infinite;
-      font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
+    position: absolute;
-      background-color: #f9fafb;
+    top: 50%;
-      color: #111827;
+    left: 50%;
-      line-height: 1.5;
+    margin-top: -20px;
-    }
+    margin-left: -20px;
-    
+    z-index: 5;
-    .container {
+  }
-      display: flex;
+  
-      flex-direction: column;
+  @keyframes spin {
-      height: 100vh;
+    0% { transform: rotate(0deg); }
-      width: 100%;
+    100% { transform: rotate(360deg); }
-    }
+  }
-    
+  
-    .header {
+  /* Status-Meldung */
-      background-color: #1f2937;
+  .status-message {
-      color: white;
+    position: absolute;
-      padding: 1rem;
+    top: 50%;
-      display: flex;
+    left: 50%;
-      justify-content: space-between;
+    transform: translate(-50%, -50%);
-      align-items: center;
+    background: rgba(15, 23, 42, 0.9);
-    }
+    padding: 1rem 2rem;
-    
+    border-radius: 0.5rem;
-    .header h1 {
+    color: white;
-      font-size: 1.5rem;
+    font-size: 1rem;
-      font-weight: 500;
+    z-index: 15;
-    }
+    text-align: center;
-    
+    max-width: 80%;
-    .toolbar {
+  }
-      background-color: #f3f4f6;
+  
-      padding: 0.75rem;
+  /* Bearbeitungsmodus-Hinweis */
-      display: flex;
+  .edit-mode-indicator {
-      gap: 0.5rem;
+    position: fixed;
-      border-bottom: 1px solid #e5e7eb;
+    bottom: 1rem;
-    }
+    left: 1rem;
-    
+    background: rgba(245, 158, 11, 0.8);
-    .btn {
+    color: white;
-      background-color: #3b82f6;
+    padding: 0.5rem 1rem;
-      color: white;
+    border-radius: 0.5rem;
-      border: none;
+    font-size: 0.9rem;
-      border-radius: 0.25rem;
+    z-index: 1000;
-      padding: 0.5rem 1rem;
+    display: none;
-      font-size: 0.875rem;
+  }
-      cursor: pointer;
+  
-      transition: background-color 0.2s;
+  .edit-mode-indicator.active {
-      display: flex;
+    display: flex;
-      align-items: center;
+    align-items: center;
-      gap: 0.5rem;
+    gap: 0.5rem;
-    }
+  }
-    
+  
-    .btn:hover {
+  /* Kontext-Menü */
-      background-color: #2563eb;
+  .context-menu {
-    }
+    position: absolute;
-    
+    background: rgba(30, 41, 59, 0.95);
-    .btn-secondary {
+    border-radius: 8px;
-      background-color: #6b7280;
+    padding: 8px 0;
-    }
+    min-width: 160px;
-    
+    z-index: 2000;
-    .btn-secondary:hover {
+    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
-      background-color: #4b5563;
+    backdrop-filter: blur(8px);
-    }
+    border: 1px solid rgba(255, 255, 255, 0.1);
-    
+  }
-    .btn-danger {
+  
-      background-color: #ef4444;
+  .context-menu-item {
-    }
+    padding: 8px 16px;
-    
+    color: white;
-    .btn-danger:hover {
+    cursor: pointer;
-      background-color: #dc2626;
+    transition: background-color 0.2s ease;
-    }
+    display: flex;
-    
+    align-items: center;
-    .search-container {
+    gap: 8px;
-      flex: 1;
+  }
-      display: flex;
+  
-      margin-left: 1rem;
+  .context-menu-item:hover {
-    }
+    background: rgba(255, 255, 255, 0.1);
-    
+  }
-    .search-input {
+</style>
-      width: 100%;
+{% endblock %}
-      max-width: 300px;
+
-      padding: 0.5rem;
+{% block content %}
-      border: 1px solid #d1d5db;
+<div class="mindmap-container">
-      border-radius: 0.25rem;
+  <div id="cy"></div>
-      font-size: 0.875rem;
+  
-    }
+  <!-- Zoom-Toolbar für Hauptmindmap -->
-    
+  <div class="mindmap-toolbar">
-    #cy {
+    <button id="zoomIn" title="Vergrößern">
-      flex: 1;
+      <i class="fas fa-plus"></i>
-      width: 100%;
+    </button>
-      position: relative;
+    <button id="zoomOut" title="Verkleinern">
-    }
+      <i class="fas fa-minus"></i>
-    
+    </button>
-    .category-filters {
+    <button id="resetView" title="Ansicht zurücksetzen">
-      display: flex;
+      <i class="fas fa-expand"></i>
-      gap: 0.5rem;
+    </button>
-      flex-wrap: wrap;
-      padding: 0.75rem;
-      background-color: #ffffff;
-      border-bottom: 1px solid #e5e7eb;
-    }
-    
-    .category-filter {
-      border: none;
-      border-radius: 0.25rem;
-      padding: 0.25rem 0.75rem;
-      font-size: 0.75rem;
-      cursor: pointer;
-      transition: opacity 0.2s;
-      color: white;
-    }
-    
-    .category-filter:not(.active) {
-      opacity: 0.6;
-    }
-    
-    .category-filter:hover:not(.active) {
-      opacity: 0.8;
-    }
-    
-    .footer {
-      background-color: #f3f4f6;
-      padding: 0.75rem;
-      text-align: center;
-      font-size: 0.75rem;
-      color: #6b7280;
-      border-top: 1px solid #e5e7eb;
-    }
-    
-    /* Kontextmenü Styling */
-    #context-menu {
-      position: absolute;
-      background-color: white;
-      border: 1px solid #e5e7eb;
-      border-radius: 0.25rem;
-      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
-      z-index: 1000;
-    }
-    
-    #context-menu .menu-item {
-      padding: 0.5rem 1rem;
-      cursor: pointer;
-    }
-    
-    #context-menu .menu-item:hover {
-      background-color: #f3f4f6;
-    }
-  </style>
-</head>
-<body>
-  <div class="container">
-    <header class="header">
-      <h1>Interaktive Mindmap</h1>
-      <div class="search-container">
-        <input type="text" id="search-mindmap" class="search-input" placeholder="Suchen...">
-      </div>
-    </header>
-    
-    <div class="toolbar">
-      <button id="addNode" class="btn">
-        <i data-feather="plus-circle"></i>
-        Knoten hinzufügen
-      </button>
-      <button id="addEdge" class="btn">
-        <i data-feather="git-branch"></i>
-        Verbindung erstellen
-      </button>
-      <button id="editNode" class="btn btn-secondary">
-        <i data-feather="edit-2"></i>
-        Knoten bearbeiten
-      </button>
-      <button id="deleteNode" class="btn btn-danger">
-        <i data-feather="trash-2"></i>
-        Knoten löschen
-      </button>
-      <button id="deleteEdge" class="btn btn-danger">
-        <i data-feather="scissors"></i>
-        Verbindung löschen
-      </button>
-      <button id="reLayout" class="btn btn-secondary">
-        <i data-feather="refresh-cw"></i>
-        Layout neu anordnen
-      </button>
-      <button id="exportMindmap" class="btn btn-secondary">
-        <i data-feather="download"></i>
-        Exportieren
-      </button>
-    </div>
-    
-    <div id="category-filters" class="category-filters">
-      <!-- Wird dynamisch befüllt -->
-    </div>
-    
-    <div id="cy"></div>
-    
-    <footer class="footer">
-      Mindmap-Anwendung © 2023
-    </footer>
   </div>
   
-  <!-- Unsere Mindmap JS -->
+  <div class="mindmap-header">
-  <script src="{{ url_for('static', filename='js/mindmap.js') }}"></script>
+    <h1 class="mindmap-title">Wissenslandschaft</h1>
+    <div class="mindmap-actions">
+      <button class="action-button" id="toggleCategories">
+        <i class="fas fa-tags"></i> Kategorien
+      </button>
+      <button class="action-button primary" id="startEdit">
+        <i class="fas fa-edit"></i> Bearbeiten
+      </button>
+    </div>
+  </div>
+
+  <!-- Info-Panel für Knotendetails -->
+  <div id="infoPanel" class="info-panel">
+    <h3 class="info-title">Knotendetails</h3>
+    <div class="info-content"></div>
+  </div>
   
-  <!-- Icons initialisieren -->
+  <div id="categoryLegend" class="category-legend"></div>
-  <script>
+</div>
-    document.addEventListener('DOMContentLoaded', () => {
+{% endblock %}
-      if (typeof feather !== 'undefined') {
+
-        feather.replace();
+{% block extra_js %}
+<!-- Cytoscape und Erweiterungen -->
+<script src="https://cdnjs.cloudflare.com/ajax/libs/cytoscape/3.26.0/cytoscape.min.js"></script>
+<script src="https://cdnjs.cloudflare.com/ajax/libs/cytoscape-cose-bilkent/4.1.0/cytoscape-cose-bilkent.min.js"></script>
+
+<!-- Unsere JavaScript-Dateien -->
+<script src="{{ url_for('static', filename='js/update_mindmap.js', v='1.0.1') }}"></script>
+
+<!-- Initialisierung -->
+<script>
+document.addEventListener('DOMContentLoaded', function() {
+  console.log('DOMContentLoaded Event ausgelöst');
+  
+  const cyContainer = document.getElementById('cy');
+  const loader = document.getElementById('loader');
+  const statusMessage = document.getElementById('statusMessage');
+  const crudPanel = document.getElementById('crudPanel');
+  const editModeIndicator = document.getElementById('editModeIndicator');
+  
+  // CRUD Buttons
+  const createNodeBtn = document.getElementById('createNode');
+  const createEdgeBtn = document.getElementById('createEdge');
+  const editNodeBtn = document.getElementById('editNode');
+  const deleteElementBtn = document.getElementById('deleteElement');
+  const saveMindmapBtn = document.getElementById('saveMindmap');
+  
+  // Header Action Buttons
+  const toggleEditModeBtn = document.getElementById('toggleEditMode');
+  const saveChangesBtn = document.getElementById('saveChanges');
+  const cancelEditBtn = document.getElementById('cancelEdit');
+  
+  let isEditMode = false;
+  let selectedElement = null;
+  
+  if (cyContainer) {
+    console.log('Container gefunden:', cyContainer);
+    
+    // Loader und Statusmeldung anzeigen, nur wenn die Elemente existieren
+    if (loader) loader.style.display = 'block';
+    if (statusMessage) {
+      statusMessage.textContent = 'Lade Mindmap...';
+      statusMessage.style.display = 'block';
+    }
+    
+    // Prüfen, ob Cytoscape vorhanden ist
+    if (typeof cytoscape !== 'undefined') {
+      console.log('Cytoscape ist verfügbar');
+      
+      // Initialisieren der Mindmap
+      initializeMindmap().then(() => {
+        // Erfolg: Loader und Statusmeldung ausblenden
+        if (loader) loader.style.display = 'none';
+        if (statusMessage) statusMessage.style.display = 'none';
+        
+        // Event-Listener für Knotenauswahl
+        window.cy.on('select', 'node', function(event) {
+          selectedElement = event.target;
+          if (editNodeBtn) editNodeBtn.disabled = false;
+          if (deleteElementBtn) deleteElementBtn.disabled = false;
+          
+          // Knotendetails im Info-Panel anzeigen
+          showNodeInfo(selectedElement);
+        });
+        
+        window.cy.on('select', 'edge', function(event) {
+          selectedElement = event.target;
+          if (editNodeBtn) editNodeBtn.disabled = true;
+          if (deleteElementBtn) deleteElementBtn.disabled = false;
+        });
+        
+        window.cy.on('unselect', function() {
+          selectedElement = null;
+          if (editNodeBtn) editNodeBtn.disabled = true;
+          if (deleteElementBtn) deleteElementBtn.disabled = true;
+          
+          // Info-Panel ausblenden
+          hideNodeInfo();
+        });
+        
+        // Rechtsklick-Menü
+        window.cy.on('cxttap', 'node', function(event) {
+          // Kontextmenü für Knoten anzeigen
+          if (isEditMode) {
+            const node = event.target;
+            const position = event.renderedPosition;
+            showNodeContextMenu(node, {
+              x: event.originalEvent.clientX,
+              y: event.originalEvent.clientY
+            });
+            event.preventDefault();
+          }
+        });
+        
+        window.cy.on('cxttap', function(event) {
+          // Kontextmenü zum Hinzufügen eines Knotens
+          if (isEditMode && event.target === window.cy) {
+            showAddNodeMenu({
+              x: event.originalEvent.clientX,
+              y: event.originalEvent.clientY
+            });
+            event.preventDefault();
+          }
+        });
+      }).catch(error => {
+        // Fehler: Fehlermeldung anzeigen
+        console.error('Mindmap-Initialisierung fehlgeschlagen', error);
+        if (loader) loader.style.display = 'none';
+        if (statusMessage) {
+          statusMessage.textContent = 'Mindmap konnte nicht initialisiert werden: ' + error.message;
+          statusMessage.style.backgroundColor = 'rgba(220, 38, 38, 0.9)';
+          statusMessage.style.display = 'block';
+        }
+      });
+    } else {
+      console.error('Cytoscape ist nicht verfügbar');
+      if (loader) loader.style.display = 'none';
+      if (statusMessage) {
+        statusMessage.textContent = 'Cytoscape-Bibliothek konnte nicht geladen werden';
+        statusMessage.style.backgroundColor = 'rgba(220, 38, 38, 0.9)';
+        statusMessage.style.display = 'block';
+      }
+    }
+  } else {
+    console.error('Container #cy nicht gefunden');
+  }
+  
+  // Bearbeitungsmodus umschalten (nur wenn alle erforderlichen Elemente existieren)
+  if (toggleEditModeBtn && crudPanel && editModeIndicator && saveChangesBtn && cancelEditBtn && window.cy) {
+    toggleEditModeBtn.addEventListener('click', function() {
+      isEditMode = !isEditMode;
+      
+      if (isEditMode) {
+        // Bearbeitungsmodus aktivieren
+        crudPanel.style.display = 'flex';
+        editModeIndicator.classList.add('active');
+        toggleEditModeBtn.style.display = 'none';
+        saveChangesBtn.style.display = 'inline-flex';
+        cancelEditBtn.style.display = 'inline-flex';
+        window.cy.container().classList.add('editing-mode');
+        
+        // Aktiviere Knotenbewegung (dragging)
+        window.cy.nodes().unlock();
+      } else {
+        // Bearbeitungsmodus deaktivieren
+        crudPanel.style.display = 'none';
+        editModeIndicator.classList.remove('active');
+        toggleEditModeBtn.style.display = 'inline-flex';
+        saveChangesBtn.style.display = 'none';
+        cancelEditBtn.style.display = 'none';
+        window.cy.container().classList.remove('editing-mode');
+        
+        // Deaktiviere Knotenbewegung
+        window.cy.nodes().lock();
       }
     });
-  </script>
+  }
-</body>
+  
-</html>
+  // Änderungen speichern
+  if (saveChangesBtn && window.cy) {
+    saveChangesBtn.addEventListener('click', function() {
+      saveMindmapChanges(window.cy);
+    });
+  }
+  
+  // Bearbeitungsmodus abbrechen
+  if (cancelEditBtn && crudPanel && editModeIndicator && toggleEditModeBtn && saveChangesBtn && loader && statusMessage) {
+    cancelEditBtn.addEventListener('click', function() {
+      if (confirm('Möchten Sie den Bearbeitungsmodus wirklich verlassen? Nicht gespeicherte Änderungen gehen verloren.')) {
+        isEditMode = false;
+        crudPanel.style.display = 'none';
+        editModeIndicator.classList.remove('active');
+        toggleEditModeBtn.style.display = 'inline-flex';
+        saveChangesBtn.style.display = 'none';
+        cancelEditBtn.style.display = 'none';
+        window.cy.container().classList.remove('editing-mode');
+        
+        // Neuinitialisierung der Mindmap
+        initializeMindmap().then(() => {
+          if (loader) loader.style.display = 'none';
+          if (statusMessage) statusMessage.style.display = 'none';
+        });
+      }
+    });
+  }
+  
+  // CRUD-Funktionen
+  if (createNodeBtn && window.cy) {
+    createNodeBtn.addEventListener('click', function() {
+      if (isEditMode) {
+        addNewNode(window.cy);
+      }
+    });
+  }
+  
+  if (createEdgeBtn && window.cy) {
+    createEdgeBtn.addEventListener('click', function() {
+      if (isEditMode) {
+        enableEdgeCreationMode(window.cy);
+      }
+    });
+  }
+  
+  if (editNodeBtn) {
+    editNodeBtn.addEventListener('click', function() {
+      if (isEditMode && selectedElement && selectedElement.isNode()) {
+        editNodeProperties(selectedElement);
+      }
+    });
+  }
+  
+  if (deleteElementBtn) {
+    deleteElementBtn.addEventListener('click', function() {
+      if (isEditMode && selectedElement) {
+        if (selectedElement.isNode()) {
+          deleteNode(selectedElement);
+        } else if (selectedElement.isEdge()) {
+          if (confirm('Möchten Sie diese Verbindung wirklich löschen?')) {
+            selectedElement.remove();
+          }
+        }
+      }
+    });
+  }
+  
+  if (saveMindmapBtn && window.cy) {
+    saveMindmapBtn.addEventListener('click', function() {
+      if (isEditMode) {
+        saveMindmapChanges(window.cy);
+      }
+    });
+  }
+  
+  // Funktionen für Zoom-Buttons und Reset
+  const zoomInBtn = document.getElementById('zoomIn');
+  const zoomOutBtn = document.getElementById('zoomOut');
+  const resetViewBtn = document.getElementById('resetView');
+  
+  if (zoomInBtn && window.cy) {
+    zoomInBtn.addEventListener('click', function() {
+      if (window.cy) window.cy.zoom(window.cy.zoom() * 1.2);
+    });
+  }
+  
+  if (zoomOutBtn && window.cy) {
+    zoomOutBtn.addEventListener('click', function() {
+      if (window.cy) window.cy.zoom(window.cy.zoom() * 0.8);
+    });
+  }
+  
+  if (resetViewBtn && window.cy) {
+    resetViewBtn.addEventListener('click', function() {
+      if (window.cy) window.cy.fit();
+    });
+  }
+});
+</script>
+{% endblock %}

templates/my_account.html

@@ -84,6 +84,23 @@
       </div>
     </div>
   </div>
+
+  <!-- Meine erstellten Mindmaps -->
+  <div class="mb-12">
+    <div class="flex justify-between items-center mb-4">
+      <h2 class="text-xl font-bold text-gray-800 dark:text-white flex items-center">
+        <i class="fas fa-brain mr-3 text-green-500"></i>
+        Meine erstellten Mindmaps
+      </h2>
+      <button id="create-mindmap-btn" class="px-4 py-2 bg-green-500 text-white rounded-lg hover:bg-green-600 transition-colors flex items-center">
+        <i class="fas fa-plus mr-2"></i> Neue Mindmap erstellen
+      </button>
+    </div>
+    <div id="user-mindmaps-container" class="space-y-4">
+      <!-- Hier werden die Mindmaps des Benutzers geladen -->
+      <p class="text-gray-600 dark:text-gray-400">Lade Mindmaps...</p>
+    </div>
+  </div>
   
   <!-- Gemerkte Inhalte -->
   <div class="grid grid-cols-1 md:grid-cols-2 gap-8 mb-8">
@@ -123,6 +140,431 @@
   </div>
 </div>
 
+<!-- Modal zum Erstellen einer neuen Mindmap -->
+<div id="create-mindmap-modal" class="fixed inset-0 bg-gray-600 bg-opacity-50 overflow-y-auto h-full w-full flex items-center justify-center hidden z-50">
+  <div class="relative mx-auto p-5 border w-full max-w-md shadow-lg rounded-md bg-white dark:bg-gray-800">
+    <div class="mt-3 text-center">
+      <h3 class="text-lg leading-6 font-medium text-gray-900 dark:text-white">Neue Mindmap erstellen</h3>
+      <div class="mt-2 px-7 py-3">
+        <form id="create-mindmap-form">
+          <div class="mb-4">
+            <label for="mindmap-name" class="block text-sm font-medium text-gray-700 dark:text-gray-300 text-left">Name</label>
+            <input type="text" name="name" id="mindmap-name" class="mt-1 block w-full px-3 py-2 border border-gray-300 dark:border-gray-600 rounded-md shadow-sm focus:outline-none focus:ring-indigo-500 focus:border-indigo-500 sm:text-sm dark:bg-gray-700 dark:text-white" required>
+          </div>
+          <div class="mb-4">
+            <label for="mindmap-description" class="block text-sm font-medium text-gray-700 dark:text-gray-300 text-left">Beschreibung (optional)</label>
+            <textarea name="description" id="mindmap-description" rows="3" class="mt-1 block w-full px-3 py-2 border border-gray-300 dark:border-gray-600 rounded-md shadow-sm focus:outline-none focus:ring-indigo-500 focus:border-indigo-500 sm:text-sm dark:bg-gray-700 dark:text-white"></textarea>
+          </div>
+        </form>
+      </div>
+      <div class="items-center px-4 py-3">
+        <button id="submit-create-mindmap" class="px-4 py-2 bg-green-500 text-white text-base font-medium rounded-md w-full shadow-sm hover:bg-green-600 focus:outline-none focus:ring-2 focus:ring-green-300">
+          Erstellen
+        </button>
+        <button id="cancel-create-mindmap" class="mt-2 px-4 py-2 bg-gray-300 text-gray-800 dark:bg-gray-600 dark:text-gray-200 text-base font-medium rounded-md w-full shadow-sm hover:bg-gray-400 dark:hover:bg-gray-500 focus:outline-none focus:ring-2 focus:ring-gray-300">
+          Abbrechen
+        </button>
+      </div>
+    </div>
+  </div>
+</div>
+
+<!-- JavaScript für persönliche Mindmap und CRUD -->
+<script>
+</script>
+<script nonce="{{ csp_nonce }}">
+  document.addEventListener('DOMContentLoaded', function() {
+    // Modal-Logik
+    const createMindmapBtn = document.getElementById('create-mindmap-btn');
+    const createMindmapModal = document.getElementById('create-mindmap-modal');
+    const cancelCreateMindmapBtn = document.getElementById('cancel-create-mindmap');
+    const submitCreateMindmapBtn = document.getElementById('submit-create-mindmap');
+    const createMindmapForm = document.getElementById('create-mindmap-form');
+
+    if (createMindmapBtn) {
+      createMindmapBtn.addEventListener('click', () => {
+        createMindmapModal.classList.remove('hidden');
+      });
+    }
+
+    if (cancelCreateMindmapBtn) {
+      cancelCreateMindmapBtn.addEventListener('click', () => {
+        createMindmapModal.classList.add('hidden');
+        createMindmapForm.reset();
+      });
+    }
+    
+    // Schließen bei Klick außerhalb des Modals
+    if (createMindmapModal) {
+        createMindmapModal.addEventListener('click', (event) => {
+            if (event.target === createMindmapModal) {
+                createMindmapModal.classList.add('hidden');
+                createMindmapForm.reset();
+            }
+        });
+    }
+
+    // Funktion zum Anzeigen von Benachrichtigungen
+    function showNotification(message, type = 'success') {
+        const notificationArea = document.getElementById('notification-area') || createNotificationArea();
+        const notificationId = `notif-${Date.now()}`;
+        constbgColor = type === 'success' ? 'bg-green-500' : (type === 'error' ? 'bg-red-500' : 'bg-blue-500');
+        
+        const notificationElement = `
+            <div id="${notificationId}" class="p-4 mb-4 text-sm text-white rounded-lg ${bgColor} animate-fadeIn" role="alert">
+                <span class="font-medium">${type.charAt(0).toUpperCase() + type.slice(1)}:</span> ${message}
+            </div>
+        `;
+        notificationArea.insertAdjacentHTML('beforeend', notificationElement);
+
+        setTimeout(() => {
+            const el = document.getElementById(notificationId);
+            if (el) {
+                el.classList.add('animate-fadeOut');
+                setTimeout(() => el.remove(), 500);
+            }
+        }, 5000);
+    }
+
+    function createNotificationArea() {
+        const area = document.createElement('div');
+        area.id = 'notification-area';
+        area.className = 'fixed top-5 right-5 z-50 w-auto max-w-sm';
+        document.body.appendChild(area);
+        // Add some basic animation styles
+        const style = document.createElement('style');
+        style.textContent = `
+            .animate-fadeIn { animation: fadeIn 0.5s ease-out; }
+            .animate-fadeOut { animation: fadeOut 0.5s ease-in forwards; }
+            @keyframes fadeIn { from { opacity: 0; transform: translateY(-20px); } to { opacity: 1; transform: translateY(0); } }
+            @keyframes fadeOut { from { opacity: 1; transform: translateY(0); } to { opacity: 0; transform: translateY(-20px); } }
+        `;
+        document.head.appendChild(style);
+        return area;
+    }
+
+
+    // CRUD-Funktionen für UserMindmaps
+    const mindmapsContainer = document.getElementById('user-mindmaps-container');
+
+    async function fetchUserMindmaps() {
+      if (!mindmapsContainer) return;
+      mindmapsContainer.innerHTML = '<p class="text-gray-600 dark:text-gray-400">Lade Mindmaps...</p>';
+      try {
+        const response = await fetch('/api/mindmaps');
+        if (!response.ok) {
+          throw new Error(`HTTP error! status: ${response.status}`);
+        }
+        const mindmaps = await response.json();
+        renderMindmaps(mindmaps);
+      } catch (error) {
+        console.error('Fehler beim Laden der Mindmaps:', error);
+        mindmapsContainer.innerHTML = '<p class="text-red-500">Fehler beim Laden der Mindmaps.</p>';
+        showNotification('Fehler beim Laden der Mindmaps.', 'error');
+      }
+    }
+
+    function renderMindmaps(mindmaps) {
+      if (!mindmapsContainer) return;
+      if (mindmaps.length === 0) {
+        mindmapsContainer.innerHTML = '<p class="text-gray-600 dark:text-gray-400">Du hast noch keine eigenen Mindmaps erstellt.</p>';
+        return;
+      }
+
+      mindmapsContainer.innerHTML = ''; // Container leeren
+      const ul = document.createElement('ul');
+      ul.className = 'space-y-3';
+
+      mindmaps.forEach(mindmap => {
+        const li = document.createElement('li');
+        li.className = 'p-4 rounded-xl bg-white/80 dark:bg-gray-800/80 shadow-sm hover:shadow-md transition-all flex justify-between items-center';
+        
+        const mindmapLink = document.createElement('a');
+        mindmapLink.href = `/user_mindmap/${mindmap.id}`;
+        mindmapLink.className = 'flex-grow';
+        
+        const textDiv = document.createElement('div');
+        const nameH3 = document.createElement('h3');
+        nameH3.className = 'font-semibold text-gray-900 dark:text-white';
+        nameH3.textContent = mindmap.name;
+        textDiv.appendChild(nameH3);
+
+        if (mindmap.description) {
+          const descP = document.createElement('p');
+          descP.className = 'text-sm text-gray-600 dark:text-gray-400';
+          descP.textContent = mindmap.description;
+          textDiv.appendChild(descP);
+        }
+        mindmapLink.appendChild(textDiv);
+        li.appendChild(mindmapLink);
+
+        const actionsDiv = document.createElement('div');
+        actionsDiv.className = 'flex space-x-2 ml-4';
+
+        const editButton = document.createElement('a');
+        editButton.href = `/edit_mindmap/${mindmap.id}`; // oder JavaScript-basiertes Editieren
+        editButton.className = 'px-3 py-1 bg-blue-500 text-white rounded hover:bg-blue-600 text-sm flex items-center';
+        editButton.innerHTML = '<i class="fas fa-edit mr-1"></i> Bearbeiten';
+        // Hier könnte auch ein Event-Listener für ein Modal zum Bearbeiten hinzugefügt werden
+        // editButton.addEventListener('click', (e) => { e.preventDefault(); openEditModal(mindmap); });
+        actionsDiv.appendChild(editButton);
+        
+        const deleteButton = document.createElement('button');
+        deleteButton.className = 'px-3 py-1 bg-red-500 text-white rounded hover:bg-red-600 text-sm flex items-center delete-mindmap-btn';
+        deleteButton.innerHTML = '<i class="fas fa-trash mr-1"></i> Löschen';
+        deleteButton.dataset.mindmapId = mindmap.id;
+        actionsDiv.appendChild(deleteButton);
+
+        li.appendChild(actionsDiv);
+        ul.appendChild(li);
+      });
+      mindmapsContainer.appendChild(ul);
+
+      // Event Listener für Löschen-Buttons hinzufügen
+      document.querySelectorAll('.delete-mindmap-btn').forEach(button => {
+        button.addEventListener('click', async (event) => {
+          const mindmapId = event.currentTarget.dataset.mindmapId;
+          if (confirm('Bist du sicher, dass du diese Mindmap löschen möchtest?')) {
+            try {
+              const response = await fetch(`/api/mindmaps/${mindmapId}`, {
+                method: 'DELETE',
+                headers: {
+                  'Content-Type': 'application/json'
+                }
+              });
+              if (!response.ok) {
+                const errorData = await response.json();
+                throw new Error(errorData.error || `HTTP error! status: ${response.status}`);
+              }
+              showNotification('Mindmap erfolgreich gelöscht.', 'success');
+              fetchUserMindmaps(); // Liste aktualisieren
+            } catch (error) {
+              console.error('Fehler beim Löschen der Mindmap:', error);
+              showNotification(`Fehler beim Löschen: ${error.message}`, 'error');
+            }
+          }
+        });
+      });
+    }
+
+    if (submitCreateMindmapBtn) {
+      submitCreateMindmapBtn.addEventListener('click', async () => {
+        const name = document.getElementById('mindmap-name').value;
+        const description = document.getElementById('mindmap-description').value;
+
+        if (!name.trim()) {
+          showNotification('Der Name der Mindmap darf nicht leer sein.', 'error');
+          return;
+        }
+
+        try {
+          const response = await fetch('/api/mindmaps', {
+            method: 'POST',
+            headers: {
+              'Content-Type': 'application/json'
+            },
+            body: JSON.stringify({ name, description, is_private: false }), // is_private standardmäßig auf false setzen
+          });
+          if (!response.ok) {
+            const errorData = await response.json();
+            throw new Error(errorData.error || `HTTP error! status: ${response.status}`);
+          }
+          const newMindmap = await response.json();
+          showNotification(`Mindmap "${newMindmap.name}" erfolgreich erstellt. Weiterleitung...`, 'success');
+          createMindmapModal.classList.add('hidden');
+          createMindmapForm.reset();
+          // fetchUserMindmaps(); // Liste wird auf der neuen Seite ohnehin neu geladen oder ist nicht direkt sichtbar.
+          // Weiterleitung zur Bearbeitungsseite der neuen Mindmap
+          window.location.href = `/edit_mindmap/${newMindmap.id}`;
+        } catch (error) {
+          console.error('Fehler beim Erstellen der Mindmap:', error);
+          showNotification(`Fehler beim Erstellen: ${error.message}`, 'error');
+        }
+      });
+    }
+    
+    // Initiale Ladefunktion für Mindmaps
+    fetchUserMindmaps();
+
+    // Bestehendes Skript für Bookmarks etc.
+    // Lade gespeicherte Bookmarks aus dem LocalStorage
+    function loadBookmarkedNodes() {
+      try {
+        const bookmarked = localStorage.getItem('bookmarkedNodes');
+        return bookmarked ? JSON.parse(bookmarked) : [];
+      } catch (error) {
+        console.error('Fehler beim Laden der gemerkten Knoten:', error);
+        return [];
+      }
+    }
+    
+    const bookmarkedNodeIds = loadBookmarkedNodes();
+    
+    // Prüfe, ob es gemerkte Knoten gibt
+    if (bookmarkedNodeIds && bookmarkedNodeIds.length > 0) {
+      // Verstecke die Leer-Nachricht
+      const emptyMindmapMessage = document.getElementById('empty-mindmap-message');
+      if (emptyMindmapMessage) {
+        emptyMindmapMessage.style.display = 'none';
+      }
+      
+      // Initialisiere die persönliche Mindmap
+      const personalMindmapContainer = document.getElementById('personal-mindmap');
+      if (personalMindmapContainer && typeof MindMapVisualization !== 'undefined') {
+          const personalMindmap = new MindMapVisualization('#personal-mindmap', {
+            width: personalMindmapContainer.clientWidth,
+            height: 400,
+            nodeRadius: 18,
+            selectedNodeRadius: 22,
+            linkDistance: 120,
+            chargeStrength: -800,
+            centerForce: 0.1,
+            tooltipEnabled: true
+          });
+          
+          // Lade Daten für die Mindmap
+          window.setTimeout(() => {
+            if (window.mindmapInstance) {
+              const nodes = window.mindmapInstance.nodes.filter(node =>
+                bookmarkedNodeIds.includes(node.id)
+              );
+              const links = window.mindmapInstance.links.filter(link =>
+                bookmarkedNodeIds.includes(link.source.id || link.source) &&
+                bookmarkedNodeIds.includes(link.target.id || link.target)
+              );
+              personalMindmap.nodes = nodes;
+              personalMindmap.links = links;
+              personalMindmap.isLoading = false;
+              personalMindmap.updateVisualization();
+            } else {
+                 if (emptyMindmapMessage) emptyMindmapMessage.style.display = 'flex';
+            }
+          }, 800);
+      }
+      loadBookmarkedContent(bookmarkedNodeIds);
+    } else {
+      // Zeige Leerzustand an
+      const areasContainer = document.getElementById('bookmarked-areas-container');
+      const thoughtsContainer = document.getElementById('bookmarked-thoughts-container');
+      
+      if (areasContainer) {
+        areasContainer.innerHTML = `
+          <div class="empty-state">
+            <div class="text-4xl mb-2 opacity-20">
+              <i class="fas fa-folder-open"></i>
+            </div>
+            <p class="text-gray-600 dark:text-gray-400">Keine gemerkten Wissensbereiche</p>
+          </div>
+        `;
+      }
+      
+      if (thoughtsContainer) {
+        thoughtsContainer.innerHTML = `
+          <div class="empty-state">
+            <div class="text-4xl mb-2 opacity-20">
+              <i class="fas fa-lightbulb"></i>
+            </div>
+            <p class="text-gray-600 dark:text-gray-400">Keine gemerkten Gedanken</p>
+          </div>
+        `;
+      }
+    }
+  });
+  
+  // Funktion zum Laden der gemerkten Inhalte (bleibt größtenteils gleich)
+  function loadBookmarkedContent(nodeIds) {
+    if (!nodeIds || nodeIds.length === 0) return;
+    
+    const areasContainer = document.getElementById('bookmarked-areas-container');
+    const thoughtsContainer = document.getElementById('bookmarked-thoughts-container');
+    
+    const colors = ['purple', 'blue', 'green', 'indigo', 'amber'];
+    
+    if (areasContainer) areasContainer.innerHTML = '';
+    if (thoughtsContainer) thoughtsContainer.innerHTML = '';
+    
+    const areaTemplates = [
+      { name: 'Philosophie', description: 'Grundlagen philosophischen Denkens', count: 24 },
+      { name: 'Wissenschaft', description: 'Wissenschaftliche Methoden und Erkenntnisse', count: 42 },
+      { name: 'Technologie', description: 'Zukunftsweisende Technologien', count: 36 },
+      { name: 'Kunst', description: 'Künstlerische Ausdrucksformen', count: 18 },
+      { name: 'Psychologie', description: 'Menschliches Verhalten verstehen', count: 30 }
+    ];
+    
+    const thoughtTemplates = [
+      { title: 'Quantenphysik und Bewusstsein', author: 'Maria Schmidt', date: '12.04.2023' },
+      { title: 'Ethik in der künstlichen Intelligenz', author: 'Thomas Weber', date: '23.02.2023' },
+      { title: 'Die Rolle der Kunst in der Gesellschaft', author: 'Lena Müller', date: '05.06.2023' },
+      { title: 'Nachhaltige Entwicklung im 21. Jahrhundert', author: 'Michael Bauer', date: '18.08.2023' },
+      { title: 'Kognitive Verzerrungen im Alltag', author: 'Sophie Klein', date: '30.09.2023' }
+    ];
+    
+    const areaCount = Math.min(nodeIds.length, 5);
+    
+    if (areasContainer && areaCount > 0) {
+      for (let i = 0; i < areaCount; i++) {
+        const area = areaTemplates[i];
+        const colorClass = colors[i % colors.length];
+        areasContainer.innerHTML += `
+          <a href="{{ url_for('mindmap') }}" class="bookmark-item block p-4 rounded-xl bg-white/80 dark:bg-gray-800/80 shadow-sm hover:shadow-md transition-all">
+            <div class="flex items-center">
+              <div class="w-10 h-10 rounded-lg bg-${colorClass}-100 dark:bg-${colorClass}-900/30 flex items-center justify-center mr-3">
+                <i class="fas fa-bookmark text-${colorClass}-500"></i>
+              </div>
+              <div class="flex-grow">
+                <h3 class="font-semibold text-gray-900 dark:text-white">${area.name}</h3>
+                <p class="text-sm text-gray-600 dark:text-gray-400">${area.description}</p>
+              </div>
+              <div class="text-xs text-gray-500 dark:text-gray-400">
+                ${area.count} Einträge
+              </div>
+            </div>
+          </a>
+        `;
+      }
+    } else if (areasContainer) {
+      areasContainer.innerHTML = `
+        <div class="empty-state">
+          <div class="text-4xl mb-2 opacity-20">
+            <i class="fas fa-folder-open"></i>
+          </div>
+          <p class="text-gray-600 dark:text-gray-400">Keine gemerkten Wissensbereiche</p>
+        </div>
+      `;
+    }
+    
+    const thoughtCount = Math.min(nodeIds.length, 5);
+    
+    if (thoughtsContainer && thoughtCount > 0) {
+      for (let i = 0; i < thoughtCount; i++) {
+        const thought = thoughtTemplates[i];
+        const colorClass = colors[(i + 2) % colors.length];
+        thoughtsContainer.innerHTML += `
+          <a href="{{ url_for('mindmap') }}" class="bookmark-item block p-4 rounded-xl bg-white/80 dark:bg-gray-800/80 shadow-sm hover:shadow-md transition-all">
+            <div class="flex items-center">
+              <div class="w-10 h-10 rounded-lg bg-${colorClass}-100 dark:bg-${colorClass}-900/30 flex items-center justify-center mr-3">
+                <i class="fas fa-lightbulb text-${colorClass}-500"></i>
+              </div>
+              <div class="flex-grow">
+                <h3 class="font-semibold text-gray-900 dark:text-white">${thought.title}</h3>
+                <p class="text-sm text-gray-600 dark:text-gray-400">Von ${thought.author} • ${thought.date}</p>
+              </div>
+            </div>
+          </a>
+        `;
+      }
+    } else if (thoughtsContainer) {
+      thoughtsContainer.innerHTML = `
+        <div class="empty-state">
+          <div class="text-4xl mb-2 opacity-20">
+            <i class="fas fa-lightbulb"></i>
+          </div>
+          <p class="text-gray-600 dark:text-gray-400">Keine gemerkten Gedanken</p>
+        </div>
+      `;
+    }
+  }
+</script>
 <!-- JavaScript für persönliche Mindmap -->
 <script>
   document.addEventListener('DOMContentLoaded', function() {

templates/simple_profile.html

@@ -0,0 +1,75 @@
+{% extends "base.html" %}
+
+{% block title %}Einfaches Profil{% endblock %}
+
+{% block content %}
+<div class="container mx-auto px-4 py-10">
+  <div class="bg-gray-800 bg-opacity-70 rounded-lg p-6 mb-6">
+    <h1 class="text-3xl font-bold text-purple-400 mb-4">Hallo, {{ user.username }}</h1>
+    <div class="text-gray-300 mb-4">
+      <p>E-Mail: {{ user.email }}</p>
+      <p>Mitglied seit: {{ user.created_at.strftime('%d.%m.%Y') }}</p>
+    </div>
+    
+    <h2 class="text-xl font-semibold text-purple-300 mt-6 mb-3">Deine Mindmaps</h2>
+    {% if user_mindmaps %}
+      <div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-4">
+        {% for mindmap in user_mindmaps %}
+          <div class="bg-gray-700 bg-opacity-50 p-4 rounded-lg">
+            <h3 class="text-lg font-medium text-purple-400 mb-2">{{ mindmap.name }}</h3>
+            <p class="text-gray-300 text-sm mb-3">{{ mindmap.description }}</p>
+            <div class="flex justify-between text-xs text-gray-400">
+              <span>Erstellt: {{ mindmap.created_at.strftime('%d.%m.%Y') }}</span>
+            </div>
+            <div class="mt-4 flex justify-between">
+              <a href="{{ url_for('mindmap') }}?id={{ mindmap.id }}" class="text-purple-400 hover:text-purple-300">
+                <i class="fas fa-eye mr-1"></i> Anzeigen
+              </a>
+              <a href="{{ url_for('edit_mindmap', mindmap_id=mindmap.id) }}" class="text-blue-400 hover:text-blue-300">
+                <i class="fas fa-edit mr-1"></i> Bearbeiten
+              </a>
+            </div>
+          </div>
+        {% endfor %}
+      </div>
+    {% else %}
+      <div class="text-center py-6">
+        <p class="text-gray-400">Du hast noch keine Mindmaps erstellt</p>
+        <a href="{{ url_for('create_mindmap') }}" class="mt-3 inline-block px-4 py-2 bg-purple-600 text-white rounded-lg hover:bg-purple-700">
+          Erste Mindmap erstellen
+        </a>
+      </div>
+    {% endif %}
+    
+    <h2 class="text-xl font-semibold text-purple-300 mt-8 mb-3">Deine Gedanken</h2>
+    {% if thoughts %}
+      <div class="space-y-4">
+        {% for thought in thoughts %}
+          <div class="bg-gray-700 bg-opacity-50 p-4 rounded-lg">
+            <h3 class="text-lg font-medium text-purple-400 mb-2">{{ thought.title }}</h3>
+            <p class="text-gray-300 text-sm mb-2">
+              {{ thought.abstract[:150] ~ '...' if thought.abstract and thought.abstract|length > 150 else thought.abstract }}
+            </p>
+            <div class="flex justify-between text-xs text-gray-400">
+              <span>Erstellt: {{ thought.created_at.strftime('%d.%m.%Y') }}</span>
+            </div>
+          </div>
+        {% endfor %}
+      </div>
+    {% else %}
+      <div class="text-center py-6">
+        <p class="text-gray-400">Du hast noch keine Gedanken erstellt</p>
+      </div>
+    {% endif %}
+    
+    <div class="mt-8 flex justify-between">
+      <a href="{{ url_for('index') }}" class="px-4 py-2 bg-gray-700 text-white rounded-lg hover:bg-gray-600">
+        Zurück zur Startseite
+      </a>
+      <a href="{{ url_for('logout') }}" class="px-4 py-2 bg-red-700 text-white rounded-lg hover:bg-red-600">
+        Abmelden
+      </a>
+    </div>
+  </div>
+</div>
+{% endblock %} 

utils/check_db.py

@@ -0,0 +1,38 @@
+import sqlite3
+
+def check_mindmap_nodes():
+    try:
+        conn = sqlite3.connect('database/systades.db')
+        cursor = conn.cursor()
+
+        # Check if the table exists
+        cursor.execute("SELECT name FROM sqlite_master WHERE type='table' AND name='mind_map_node';")
+        table_exists = cursor.fetchone()
+        
+        if not table_exists:
+            print("Die Tabelle 'mind_map_node' existiert nicht!")
+            return
+        
+        # Check for the "Wissen" node
+        cursor.execute("SELECT * FROM mind_map_node WHERE name = 'Wissen';")
+        wissen_node = cursor.fetchone()
+        
+        if wissen_node:
+            print(f"'Wissen'-Knoten gefunden: {wissen_node}")
+        else:
+            print("'Wissen'-Knoten NICHT gefunden!")
+        
+        # Get all nodes
+        cursor.execute("SELECT id, name FROM mind_map_node LIMIT 10;")
+        nodes = cursor.fetchall()
+        
+        print(f"\nVorhandene Knoten (max. 10):")
+        for node in nodes:
+            print(f"  - {node}")
+        
+        conn.close()
+    except Exception as e:
+        print(f"Fehler: {e}")
+
+if __name__ == "__main__":
+    check_mindmap_nodes()

utils/db_fix.py

@@ -11,19 +11,33 @@ import importlib.util
 parent_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
 sys.path.insert(0, parent_dir)
 
-from app import app, db_path
+# Direkt den Datenbankpfad berechnen, statt ihn aus app.py zu importieren
+def get_db_path():
+    """Berechnet den absoluten Pfad zur Datenbank"""
+    basedir = os.path.abspath(os.path.dirname(os.path.dirname(__file__)))
+    return os.path.join(basedir, 'database', 'systades.db')
+
+# Import models direkt
 from models import db
 
 def ensure_db_dir():
     """Make sure the database directory exists."""
+    db_path = get_db_path()
     os.makedirs(os.path.dirname(db_path), exist_ok=True)
 
 def fix_database_schema():
     """Fix the database schema by adding missing columns."""
+    # Import Flask-App erst innerhalb der Funktion
+    from flask import Flask
+    from app import app
+    
     with app.app_context():
         # Ensure directory exists
         ensure_db_dir()
         
+        # Get database path
+        db_path = get_db_path()
+        
         # Check if database exists, create tables if needed
         if not os.path.exists(db_path):
             print("Database doesn't exist. Creating all tables from scratch...")

utils/db_operations.py

@@ -0,0 +1,103 @@
+import sqlite3
+import os
+import random
+
+# Verbindung zur Datenbank herstellen
+db_path = os.path.join(os.getcwd(), 'database', 'systades.db')
+conn = sqlite3.connect(db_path)
+cursor = conn.cursor()
+
+# Schema der mind_map_node Tabelle anzeigen
+cursor.execute("PRAGMA table_info(mind_map_node)")
+columns = cursor.fetchall()
+print("Tabellenschema mind_map_node:")
+for column in columns:
+    print(f"{column[1]} ({column[2]})")
+
+# Existierende Knoten anzeigen
+cursor.execute("SELECT id, name, description, color_code FROM mind_map_node LIMIT 5")
+existing_nodes = cursor.fetchall()
+print("\nBestehende Knoten:")
+for node in existing_nodes:
+    print(f"ID: {node[0]}, Name: {node[1]}, Beschreibung: {node[2]}")
+
+# Mögliche Kategorien abrufen (für die Verknüpfung)
+cursor.execute("SELECT id, name FROM category")
+categories = cursor.fetchall()
+print("\nVerfügbare Kategorien:")
+for category in categories:
+    print(f"ID: {category[0]}, Name: {category[1]}")
+
+# Wissenschaftliche Themengebiete für neue Knoten
+scientific_nodes = [
+    {
+        "name": "Quantenphysik",
+        "description": "Die Quantenphysik befasst sich mit dem Verhalten von Materie und Energie auf atomarer und subatomarer Ebene.",
+        "color_code": "#4B0082",  # Indigo
+        "icon": "fa-atom"
+    },
+    {
+        "name": "Neurowissenschaften",
+        "description": "Interdisziplinäre Wissenschaft, die sich mit der Struktur und Funktion des Nervensystems und des Gehirns beschäftigt.",
+        "color_code": "#FF4500",  # Orange-Rot
+        "icon": "fa-brain"
+    },
+    {
+        "name": "Künstliche Intelligenz",
+        "description": "Forschungsgebiet der Informatik, das sich mit der Automatisierung intelligenten Verhaltens befasst.",
+        "color_code": "#008080",  # Teal
+        "icon": "fa-robot"
+    },
+    {
+        "name": "Klimaforschung",
+        "description": "Wissenschaftliche Untersuchung des Klimas, seiner Variationen und Veränderungen auf allen zeitlichen und räumlichen Skalen.",
+        "color_code": "#2E8B57",  # Seegrün
+        "icon": "fa-cloud-sun"
+    },
+    {
+        "name": "Genetik",
+        "description": "Teilgebiet der Biologie, das sich mit Vererbung sowie der Funktion und Wirkung von Genen beschäftigt.",
+        "color_code": "#800080",  # Lila
+        "icon": "fa-dna"
+    },
+    {
+        "name": "Astrophysik",
+        "description": "Zweig der Astronomie, der sich mit den physikalischen Eigenschaften des Universums befasst.",
+        "color_code": "#191970",  # Mitternachtsblau
+        "icon": "fa-star"
+    }
+]
+
+# Neue Knoten hinzufügen
+print("\nFüge neue wissenschaftliche Knoten hinzu...")
+for node in scientific_nodes:
+    # Prüfen, ob der Knoten bereits existiert
+    cursor.execute("SELECT id FROM mind_map_node WHERE name = ?", (node["name"],))
+    existing = cursor.fetchone()
+    if existing:
+        print(f"Knoten '{node['name']}' existiert bereits mit ID {existing[0]}")
+        continue
+    
+    # Zufällige Kategorie wählen, wenn vorhanden
+    category_id = None
+    if categories:
+        category_id = random.choice(categories)[0]
+    
+    # Neuen Knoten einfügen
+    cursor.execute("""
+        INSERT INTO mind_map_node (name, description, color_code, icon, is_public, category_id) 
+        VALUES (?, ?, ?, ?, ?, ?)
+    """, (
+        node["name"], 
+        node["description"], 
+        node["color_code"], 
+        node["icon"],
+        True, 
+        category_id
+    ))
+    print(f"Knoten '{node['name']}' hinzugefügt")
+
+# Änderungen übernehmen und Verbindung schließen
+conn.commit()
+print("\nDatenbank erfolgreich aktualisiert!")
+conn.close() 

utils/db_test.py

@@ -9,9 +9,19 @@ import sqlite3
 parent_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
 sys.path.insert(0, parent_dir)
 
-from app import app, db_path
+# Vermeidung zirkulärer Importe - importiere nur die Modelle und DB-Objekt
 from models import db, User, Thought, MindMapNode, Category
 
+def get_db_path():
+    """Ermittelt den Pfad zur Datenbankdatei"""
+    db_dir = os.path.join(parent_dir, 'database')
+    if not os.path.exists(db_dir):
+        os.makedirs(db_dir)
+    return os.path.join(db_dir, 'systades.db')
+
+# Datenbank-Pfad
+db_path = get_db_path()
+
 def test_database_connection():
     """Test if the database exists and can be connected to."""
     try:
@@ -37,52 +47,52 @@ def test_database_connection():
 
 def test_models():
     """Test if all models are properly defined and can be queried."""
-    with app.app_context():
+    # Import app here to avoid circular import
-        try:
+    from flask import current_app
-            print("\nTesting User model...")
+    try:
-            user_count = User.query.count()
+        print("\nTesting User model...")
-            print(f"  Found {user_count} users")
+        user_count = User.query.count()
-            
+        print(f"  Found {user_count} users")
-            print("\nTesting Category model...")
+        
-            category_count = Category.query.count()
+        print("\nTesting Category model...")
-            print(f"  Found {category_count} categories")
+        category_count = Category.query.count()
-            
+        print(f"  Found {category_count} categories")
-            print("\nTesting MindMapNode model...")
+        
-            node_count = MindMapNode.query.count()
+        print("\nTesting MindMapNode model...")
-            print(f"  Found {node_count} mindmap nodes")
+        node_count = MindMapNode.query.count()
-            
+        print(f"  Found {node_count} mindmap nodes")
-            print("\nTesting Thought model...")
+        
-            thought_count = Thought.query.count()
+        print("\nTesting Thought model...")
-            print(f"  Found {thought_count} thoughts")
+        thought_count = Thought.query.count()
-            
+        print(f"  Found {thought_count} thoughts")
-            if user_count == 0:
+        
-                print("\nWARNING: No users found in the database. You might need to create an admin user.")
+        if user_count == 0:
-            
+            print("\nWARNING: No users found in the database. You might need to create an admin user.")
-            return True
+        
-        except Exception as e:
+        return True
-            print(f"Error testing models: {e}")
+    except Exception as e:
-            return False
+        print(f"Error testing models: {e}")
+        return False
 
 def print_database_stats():
     """Print database statistics."""
-    with app.app_context():
+    try:
-        try:
+        stats = []
-            stats = []
+        stats.append(("Users", User.query.count()))
-            stats.append(("Users", User.query.count()))
+        stats.append(("Categories", Category.query.count()))
-            stats.append(("Categories", Category.query.count()))
+        stats.append(("Mindmap Nodes", MindMapNode.query.count()))
-            stats.append(("Mindmap Nodes", MindMapNode.query.count()))
+        stats.append(("Thoughts", Thought.query.count()))
-            stats.append(("Thoughts", Thought.query.count()))
+        
-            
+        print("\nDatabase Statistics:")
-            print("\nDatabase Statistics:")
+        print("-" * 40)
-            print("-" * 40)
+        for name, count in stats:
-            for name, count in stats:
+            print(f"{name:<20} : {count}")
-                print(f"{name:<20} : {count}")
+        print("-" * 40)
-            print("-" * 40)
+        
-            
+        return True
-            return True
+    except Exception as e:
-        except Exception as e:
+        print(f"Error generating database statistics: {e}")
-            print(f"Error generating database statistics: {e}")
+        return False
-            return False
 
 def run_all_tests():
     """Run all database tests."""
@@ -97,15 +107,18 @@ def run_all_tests():
     if not test_database_connection():
         success = False
     
-    # Test models
+    # Import app here to avoid circular import
-    print("\n2. Testing database models...")
+    from app import app
-    if not test_models():
+    with app.app_context():
-        success = False
+        # Test models
-    
+        print("\n2. Testing database models...")
-    # Print statistics
+        if not test_models():
-    print("\n3. Database statistics:")
+            success = False
-    if not print_database_stats():
+        
-        success = False
+        # Print statistics
+        print("\n3. Database statistics:")
+        if not print_database_stats():
+            success = False
     
     print("\n" + "=" * 60)
     if success:
@@ -117,4 +130,7 @@ def run_all_tests():
     return success
 
 if __name__ == "__main__":
-    run_all_tests() 
+    # Import app here to avoid circular import
+    from app import app
+    with app.app_context():
+        run_all_tests() 

utils/update_db.py

@@ -0,0 +1,65 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+import os
+import sqlite3
+import sys
+
+# Bestimme den absoluten Pfad zur Datenbank
+basedir = os.path.abspath(os.path.dirname(__file__))
+db_path = os.path.join(basedir, 'database', 'systades.db')
+
+def update_user_table():
+    """Aktualisiert die User-Tabelle mit den fehlenden Spalten"""
+    
+    # Überprüfe, ob die Datenbankdatei existiert
+    if not os.path.exists(db_path):
+        print(f"Datenbank nicht gefunden unter: {db_path}")
+        return False
+    
+    # Verbindung zur Datenbank herstellen
+    try:
+        conn = sqlite3.connect(db_path)
+        cursor = conn.cursor()
+        
+        # Überprüfe, ob die neuen Spalten bereits existieren
+        cursor.execute("PRAGMA table_info(user)")
+        columns = [info[1] for info in cursor.fetchall()]
+        
+        # Neue Spalten, die hinzugefügt werden müssen
+        new_columns = {
+            'bio': 'TEXT',
+            'location': 'VARCHAR(100)',
+            'website': 'VARCHAR(200)',
+            'avatar': 'VARCHAR(200)',
+            'last_login': 'DATETIME'
+        }
+        
+        # Spalten hinzufügen, die noch nicht existieren
+        for col_name, col_type in new_columns.items():
+            if col_name not in columns:
+                print(f"Füge Spalte '{col_name}' zur User-Tabelle hinzu...")
+                cursor.execute(f"ALTER TABLE user ADD COLUMN {col_name} {col_type}")
+        
+        # Änderungen speichern
+        conn.commit()
+        print("User-Tabelle erfolgreich aktualisiert!")
+        return True
+        
+    except sqlite3.Error as e:
+        print(f"Fehler bei der Datenbankaktualisierung: {e}")
+        return False
+    finally:
+        if conn:
+            conn.close()
+
+if __name__ == "__main__":
+    # Führe die Aktualisierung durch
+    success = update_user_table()
+    
+    if success:
+        print("Die Datenbank wurde erfolgreich aktualisiert.")
+        sys.exit(0)
+    else:
+        print("Es gab ein Problem bei der Datenbankaktualisierung.")
+        sys.exit(1) 

utils/user_manager.py

@@ -55,7 +55,7 @@ def create_user(username, email, password, is_admin=False):
             user = User(
                 username=username,
                 email=email,
-                is_admin=is_admin,
+                role='admin' if is_admin else 'user',
                 created_at=datetime.utcnow()
             )
             user.set_password(password)

venv/pyvenv.cfg

@@ -1,5 +1,5 @@
 home = C:\Program Files\Python313
 include-system-site-packages = false
 version = 3.13.3
-executable = C:\Program Files\Python313\python.exe
+executable = C:\Users\firem\Desktop\111\Systades\website\.venv\Scripts\python.exe
-command = C:\Program Files\Python313\python.exe -m venv C:\Users\TTOMCZA.EMEA\Dev\website\venv
+command = C:\Users\firem\Desktop\111\Systades\website\.venv\Scripts\python.exe -m venv C:\Users\firem\Desktop\111\Systades\website\venv

windows_setup.bat

@@ -1,58 +0,0 @@
-@echo off
-echo Mindmap Projekt - Windows Setup
-echo ==============================
-echo.
-
-REM Prüfen, ob Python installiert ist
-python --version >nul 2>&1
-if %errorlevel% neq 0 (
-    echo Python ist nicht installiert oder nicht im PATH.
-    echo Bitte installiere Python 3.11 von https://www.python.org/downloads/
-    echo und stelle sicher, dass "Add Python to PATH" während der Installation aktiviert ist.
-    pause
-    exit /b 1
-)
-
-echo Erstelle virtuelle Umgebung...
-python -m venv venv
-if %errorlevel% neq 0 (
-    echo Fehler beim Erstellen der virtuellen Umgebung.
-    pause
-    exit /b 1
-)
-
-echo Aktiviere virtuelle Umgebung...
-call venv\Scripts\activate.bat
-if %errorlevel% neq 0 (
-    echo Fehler beim Aktivieren der virtuellen Umgebung.
-    pause
-    exit /b 1
-)
-
-echo Aktualisiere pip...
-python -m pip install --upgrade pip
-if %errorlevel% neq 0 (
-    echo Warnung: Pip konnte nicht aktualisiert werden. Fahre trotzdem fort.
-)
-
-echo Installiere Abhängigkeiten...
-pip install -r requirements.txt
-if %errorlevel% neq 0 (
-    echo Fehler beim Installieren der Abhängigkeiten.
-    pause
-    exit /b 1
-)
-
-echo.
-echo Setup abgeschlossen!
-echo.
-echo Zum Starten des Servers:
-echo 1. Führe "venv\Scripts\activate.bat" aus
-echo 2. Führe "python TOOLS.py db:rebuild" aus (Nur beim ersten Mal oder zum Zurücksetzen der Datenbank)
-echo 3. Führe "python TOOLS.py user:admin" aus (Erstellt einen Admin-Benutzer: admin/admin)
-echo 4. Führe "python TOOLS.py server:run" aus
-echo.
-echo Die Anwendung ist dann unter http://localhost:5000 erreichbar.
-echo.
-
-pause