server {
    listen 3800;  # Changed to port 3800 to match external Nginx config
    server_name localhost;
    
    # Root directory for static files
    root /usr/share/nginx/html;
    
    index index.html;
    
    # Enable gzip compression
    gzip on;
    gzip_min_length 1000;
    gzip_proxied expired no-cache no-store private auth;
    gzip_types text/plain text/css application/json application/javascript application/x-javascript text/xml application/xml application/xml+rss text/javascript;
    
    # Forward all requests to index.html for SPA routing
    location / {
        try_files $uri $uri/ /index.html;
    }
    
    # Cache static assets
    location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg)$ {
        expires 30d;
        add_header Cache-Control "public, no-transform";
    }
    
    # Don't cache HTML
    location ~* \.html$ {
        expires -1;
        add_header Cache-Control "no-store, no-cache, must-revalidate, proxy-revalidate";
    }
    
    # Error handling
    error_page 404 /index.html;
    error_page 500 502 503 504 /index.html;
}