body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        h1, h2, h3 { color: #FF4500; margin-top: 30px; }
        h1 { font-size: 2.5em; }
        h2 { font-size: 1.8em; }
        h3 { font-size: 1.4em; }
        .nav { background: #FFD700; padding: 15px; position: sticky; top: 0; z-index: 100; }
        .nav-mobile { display: none; }
        .logo { font-weight: bold; font-size: 1.8em; text-transform: uppercase; }
        .btn { background: #FF4500; color: white; padding: 10px 20px; border-radius: 5px; text-decoration: none; display: inline-block; margin: 10px 0; }
        img { max-width: 100%; height: auto; margin: 20px 0; }
        @media (max-width: 768px) {
            .nav-desktop { display: none; }
            .nav-mobile { display: block; }
            body { padding: 10px; }
        }