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

    # Rien ne doit jamais sortir du navigateur : CSP verrouillée, pas de connect-src externe.
    add_header Content-Security-Policy "default-src 'self'; script-src 'self'; style-src 'self' 'unsafe-inline'; img-src 'self' data:; connect-src 'none'; frame-ancestors 'none'; base-uri 'self'; form-action 'none'" always;
    add_header X-Content-Type-Options "nosniff" always;
    add_header X-Frame-Options "DENY" always;
    add_header Referrer-Policy "no-referrer" always;
    add_header Permissions-Policy "geolocation=(), camera=(), microphone=()" always;

    location / {
        try_files $uri $uri/ =404;
    }

    location = /healthz {
        access_log off;
        return 200 "ok\n";
        add_header Content-Type text/plain;
    }
}