server {
    listen 80;
    server_name 89.169.53.68;
    
    root /var/www/fidem;
    index index.html;
    
    # Security headers
    add_header X-Frame-Options "SAMEORIGIN";
    add_header X-Content-Type-Options "nosniff";
    add_header X-XSS-Protection "1; mode=block";
    
    # Main location
    location / {
        try_files $uri $uri/ =404;
    }
    
    # Cache static files
    location ~* \.(css|js|png|jpg|jpeg|gif|svg|webp|woff|woff2|ttf|otf)$ {
        expires 1y;
        add_header Cache-Control "public, immutable";
    }
    
    # Gzip compression
    gzip on;
    gzip_types text/css application/javascript image/svg+xml;
}