server {
    listen 80;
    server_name _;

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

    # SPA routing — 404s caem no index.html (i18next/react-router lidam)
    location / {
        try_files $uri $uri/ /index.html;
    }

    # Cache agressivo para assets versionados (Vite gera hash no nome)
    location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff|woff2|ttf|eot|webp|avif)$ {
        expires 1y;
        add_header Cache-Control "public, immutable";
    }

    # index.html nunca cacheia (pega versão nova após deploy)
    location = /index.html {
        add_header Cache-Control "no-store, no-cache, must-revalidate";
    }

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