server {
    listen 80;
    server_name _;

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

    # HTML : jamais caché
    location ~* \.html$ {
        add_header Cache-Control "no-store";
    }

    # Fichiers Astro avec hash dans _astro/ : cache long immutable
    location ~* ^/_astro/ {
        add_header Cache-Control "public, max-age=31536000, immutable";
    }

    # CSS / JS sans hash (style.css, main.js) : revalidation
    location ~* \.(css|js)$ {
        add_header Cache-Control "no-cache";
    }

    # Assets (images, fonts) : cache 7 jours
    location ~* \.(jpg|jpeg|png|gif|webp|svg|woff2|woff|ttf|ico)$ {
        add_header Cache-Control "public, max-age=604800";
    }

    location / {
        try_files $uri $uri/ $uri.html /index.html;
    }
}