body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        h1 { color: #d32f2f; border-bottom: 3px solid #ff9800; padding-bottom: 10px; }
        h2 { color: #388e3c; margin-top: 30px; }
        h3 { color: #1976d2; }
        .btn { display: inline-block; padding: 10px 20px; background: #ff5722; color: white; text-decoration: none; border-radius: 5px; margin: 10px 0; }
        .nav { background: #000; color: white; padding: 10px; display: flex; justify-content: space-between; align-items: center; }
        .nav-links a { color: white; margin: 0 15px; }
        .mobile-toggle { display: none; }
        @media (max-width: 768px) {
            .nav-links { display: none; }
            .mobile-toggle { display: block; }
        }
        img { max-width: 100%; height: auto; margin: 20px 0; }
        .footer { margin-top: 50px; padding: 20px; background: #f5f5f5; }