server {
    listen 8080;
    server_name _;
    root /usr/share/nginx/html;
    index index.html;

    # Gzip compression
    gzip on;
    gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript image/svg+xml;
    gzip_min_length 256;

    # Security headers
    add_header X-Frame-Options "SAMEORIGIN" always;
    add_header X-Content-Type-Options "nosniff" always;
    add_header Referrer-Policy "strict-origin-when-cross-origin" always;
    add_header Content-Security-Policy "default-src 'self'; script-src 'self'; style-src 'self' 'unsafe-inline'; img-src 'self' data: https:; font-src 'self'; connect-src 'self' https://*.cartsnitch.com https://*.farh.net; frame-ancestors 'self'" always;

    # Health endpoint for K8s probes
    location /health {
        access_log off;
        return 200 'ok';
        add_header Content-Type text/plain;
    }

    # Cache static assets aggressively (Vite hashes filenames)
    location /assets/ {
        expires 1y;
        add_header Cache-Control "public, immutable";
    }

    # Service worker — must not be cached
    location /sw.js {
        expires off;
        add_header Cache-Control "no-cache, no-store, must-revalidate";
    }

    # SPA fallback — serve index.html for all routes
    location / {
        try_files $uri $uri/ /index.html;
    }
}