server {
    listen 80;
    server_name _;
    root /var/www/html/public;
    index index.php index.html;

    client_max_body_size 100M;

    # Security headers
    add_header X-Frame-Options "SAMEORIGIN" always;
    add_header X-Content-Type-Options "nosniff" always;
    add_header X-XSS-Protection "1; mode=block" always;
    add_header Referrer-Policy "strict-origin-when-cross-origin" always;

    charset utf-8;

    # Main location
    location / {
        try_files $uri $uri/ /index.php?$query_string;
    }

    # Static files caching
    location ~* \.(jpg|jpeg|gif|png|svg|webp|ico|woff2|woff|ttf|eot)$ {
        expires 7d;
        add_header Cache-Control "public, immutable";
        access_log off;
    }

    location ~* \.(css|js|xml|txt)$ {
        expires 7d;
        add_header Cache-Control "public, proxy-revalidate";
    }

    # Block sensitive paths
    location ~ /vendor/ { deny all; }
    location ~ /\. { deny all; }

    # Favicon & robots
    location = /favicon.ico { access_log off; log_not_found off; }
    location = /robots.txt  { access_log off; log_not_found off; }

    error_page 404 /index.php;

    # PHP-FPM
    location ~ \.php$ {
        fastcgi_pass app:9000;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        fastcgi_param DOCUMENT_ROOT $document_root;
        include fastcgi_params;
        fastcgi_read_timeout 300;
        fastcgi_buffers 16 16k;
        fastcgi_buffer_size 32k;

        # Prevent path info attacks
        fastcgi_split_path_info ^(.+\.php)(/.+)$;
    }

    # Deny .env and other dotfiles
    location ~ /\.(?!well-known).* {
        deny all;
    }
}