server {
    listen       7860;
    listen       [::]:7860;
    server_name  _;

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

    # gzip
    gzip on;
    gzip_vary on;
    gzip_min_length 1024;
    gzip_proxied any;
    gzip_comp_level 6;
    gzip_types
        text/plain
        text/css
        text/xml
        text/javascript
        application/javascript
        application/x-javascript
        application/json
        application/xml
        application/xml+rss
        application/wasm
        image/svg+xml
        font/ttf
        font/otf
        font/woff
        font/woff2;

    # Long-lived cache for hashed Vite assets
    location /assets/ {
        expires 1y;
        add_header Cache-Control "public, immutable";
        try_files $uri =404;
    }

    # Never cache index.html (so deploys take effect immediately)
    location = /index.html {
        add_header Cache-Control "no-store, no-cache, must-revalidate" always;
        try_files $uri =404;
    }

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

    # 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 Permissions-Policy     "camera=(), microphone=(), geolocation=()" always;
}