server {
    listen 80;
    server_name _;

    root /usr/share/nginx/html;
    index index.html;

    # Health check endpoint
    location /health {
        access_log off;
        return 200 "ok\n";
        add_header Content-Type text/plain;
    }

    # Proxy API calls to backend (handled by Traefik, but keep for direct access)
    location /api/ {
        proxy_pass http://backend:5000;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
    }

    # SPA fallback
    location / {
        try_files $uri $uri/ /index.html;
    }

    gzip on;
    gzip_types text/plain text/css application/json application/javascript text/xml application/xml image/svg+xml;
    gzip_min_length 1024;
}