server {
    listen 80;
    server_name sumbatengahkab.go.id www.sumbatengahkab.go.id;
    root /usr/share/nginx/html;
    index index.html;

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

    # Security headers
    add_header X-Frame-Options "SAMEORIGIN" always;
    add_header X-Content-Type-Options "nosniff" always;
    add_header X-XSS-Protection "1; mode=block" always;
    add_header Referrer-Policy "strict-origin-when-cross-origin" always;

    # Cache static assets
    location /_astro/ {
        expires 1y;
        add_header Cache-Control "public, immutable";
    }

    location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff|woff2)$ {
        expires 30d;
        add_header Cache-Control "public, no-transform";
    }

    # SPA fallback — try file, then directory, then index.html
    location / {
        try_files $uri $uri/ $uri/index.html =404;
    }

    # Custom 404
    error_page 404 /404.html;
}