server {
    listen 8080 default_server;
    server_name _;

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

    add_header X-Content-Type-Options "nosniff" always;
    add_header X-Frame-Options "DENY" always;
    add_header Referrer-Policy "strict-origin-when-cross-origin" always;

    gzip on;
    gzip_types text/css application/javascript text/javascript application/wasm image/svg+xml;
    gzip_min_length 512;

    # fingerprint-hashed Hugo assets (css/js) and the engine bundle: immutable
    location /css/   { expires 1y; add_header Cache-Control "public, immutable"; }
    location /js/    { expires 1y; add_header Cache-Control "public, immutable"; }
    location /gpu/   { expires 1y; add_header Cache-Control "public, immutable"; }

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

    # everything else: plain static — real files, 404 is legitimate (no SPA fallback)
    location / {
        try_files $uri $uri/ =404;
        expires -1;
        add_header Cache-Control "no-cache";
    }
}