server {
    listen 80;
    listen [::]:80;
    server_name _;
    root /usr/share/nginx/html;
    index index.html;

    # SPA / static: serve files if present, else index.html
    location / {
        try_files $uri $uri/ /index.html;
    }

    # Cache hashed assets from Vite
    location /assets/ {
        add_header Cache-Control "public, max-age=31536000, immutable";
        try_files $uri =404;
    }

    gzip on;
    gzip_types text/css application/javascript application/json image/svg+xml;
    gzip_min_length 256;
}