graph TB
    %% Stil-Definitionen
    classDef backend fill:#1e40af,stroke:#1e3a8a,color:#fff,stroke-width:3px
    classDef frontend fill:#10b981,stroke:#059669,color:#fff,stroke-width:3px
    classDef database fill:#f59e0b,stroke:#d97706,color:#fff,stroke-width:3px
    classDef hardware fill:#ef4444,stroke:#dc2626,color:#fff,stroke-width:3px
    classDef network fill:#8b5cf6,stroke:#7c3aed,color:#fff,stroke-width:3px
    classDef client fill:#06b6d4,stroke:#0891b2,color:#fff,stroke-width:3px
    classDef security fill:#e11d48,stroke:#be123c,color:#fff,stroke-width:3px
    classDef note fill:#f3f4f6,stroke:#d1d5db,color:#000,stroke-width:1px

    %% Netzwerk-Infrastruktur
    subgraph MB["Mercedes-Benz Netzwerk"]
        subgraph LAN["Lokales WLAN 192.168.0.0/24"]
            %% Backend-Server
            BACKEND["Backend-Server<br/>Flask REST-API<br/>IP: 192.168.0.105<br/>Ports: 443, 8080<br/>HTTPS mit SSL"]:::backend
            
            %% Frontend-Server
            FRONTEND["Frontend-Server<br/>Next.js PWA<br/>Domain: m040tbaraspi001<br/>Ports: 3000, 443<br/>HTTPS mit Mercedes SSL"]:::frontend
            
            %% Datenbank
            DB[("SQLite-Datenbank<br/>WAL-Modus<br/>myp.db<br/>Optimiert für Pi")]:::database
            
            %% Raspberry Pi Kiosk
            KIOSK["Raspberry Pi<br/>Kiosk-Modus<br/>Touch-Interface<br/>Offline-Betrieb"]:::client
            
            %% Smart-Plug Netzwerk
            subgraph PLUGNET["Smart-Plug Netzwerk"]
                PLUG1["TP-Link Tapo P110<br/><strong>IP: 192.168.0.100</strong><br/>Drucker 1"]:::hardware
                PLUG2["TP-Link Tapo P110<br/><strong>IP: 192.168.0.101</strong><br/>Drucker 2"]:::hardware
                PLUG3["TP-Link Tapo P110<br/><strong>IP: 192.168.0.102</strong><br/>Drucker 3"]:::hardware
                PLUG4["TP-Link Tapo P110<br/><strong>IP: 192.168.0.103</strong><br/>Drucker 4"]:::hardware
                PLUG5["TP-Link Tapo P110<br/><strong>IP: 192.168.0.104</strong><br/>Drucker 5"]:::hardware
                PLUG6["TP-Link Tapo P110<br/><strong>IP: 192.168.0.106</strong><br/>Drucker 6"]:::hardware
            end
            
            %% 3D-Drucker
            subgraph PRINTERS["3D-Drucker"]
                PRINTER1["<strong>3D-Drucker 1</strong><br/>Stromversorgung über Plug"]:::hardware
                PRINTER2["<strong>3D-Drucker 2</strong><br/>Stromversorgung über Plug"]:::hardware
                PRINTER3["<strong>3D-Drucker 3</strong><br/>Stromversorgung über Plug"]:::hardware
                PRINTER4["<strong>3D-Drucker 4</strong><br/>Stromversorgung über Plug"]:::hardware
                PRINTER5["<strong>3D-Drucker 5</strong><br/>Stromversorgung über Plug"]:::hardware
                PRINTER6["<strong>3D-Drucker 6</strong><br/>Stromversorgung über Plug"]:::hardware
            end
        end
        
        %% Client-Systeme
        CLIENT1["<strong>Browser-Clients</strong><br/>Desktop/Mobile<br/>PWA-Support"]:::client
        CLIENT2["<strong>Admin-Dashboard</strong><br/>HTTPS-Zugriff"]:::client
        CLIENT3["<strong>Gast-Zugriff</strong><br/>OTP-Authentifizierung"]:::client
    end
    
    %% Verbindungen - API-Kommunikation
    CLIENT1 -.->|"HTTPS/443"| FRONTEND
    CLIENT2 -.->|"HTTPS/443"| FRONTEND
    CLIENT3 -.->|"HTTPS/443"| FRONTEND
    FRONTEND -->|"REST-API<br/>HTTPS/443"| BACKEND
    KIOSK -->|"Local API"| BACKEND
    
    %% Verbindungen - Datenbank
    BACKEND -->|"SQLAlchemy<br/>Thread-Pool"| DB
    
    %% Verbindungen - Hardware-Steuerung
    BACKEND -->|"Tapo-API<br/>WLAN"| PLUG1
    BACKEND -->|"Tapo-API<br/>WLAN"| PLUG2
    BACKEND -->|"Tapo-API<br/>WLAN"| PLUG3
    BACKEND -->|"Tapo-API<br/>WLAN"| PLUG4
    BACKEND -->|"Tapo-API<br/>WLAN"| PLUG5
    BACKEND -->|"Tapo-API<br/>WLAN"| PLUG6
    
    %% Verbindungen - Stromversorgung
    PLUG1 -.->|"230V AC"| PRINTER1
    PLUG2 -.->|"230V AC"| PRINTER2
    PLUG3 -.->|"230V AC"| PRINTER3
    PLUG4 -.->|"230V AC"| PRINTER4
    PLUG5 -.->|"230V AC"| PRINTER5
    PLUG6 -.->|"230V AC"| PRINTER6
    
    %% Notizen
    subgraph INFO["System-Informationen"]
        NOTE1["<br/><strong>Scheduler-System:</strong><br/>Automatische Drucker-, Hintergrundaufgaben- und Zeitsteuerung"]:::note
    end