body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #333; background: #f5f5f5; }
        .container { max-width: 1200px; margin: 0 auto; padding: 20px; }
        header { background: #1a73e8; color: white; padding: 15px; text-align: center; position: relative; }
        .logo { font-size: 28px; font-weight: bold; letter-spacing: 1px; }
        nav ul { list-style: none; padding: 0; display: flex; justify-content: center; }
        nav ul li { margin: 0 15px; }
        nav ul li a { color: white; text-decoration: none; }
        .mobile-menu { display: none; position: absolute; right: 20px; top: 20px; }
        h1 { color: #1a73e8; margin-top: 30px; }
        h2 { color: #0d47a1; margin-top: 25px; }
        h3 { color: #1565c0; margin-top: 20px; }
        .download-btn, .login-btn { background: #0f9d58; color: white; padding: 10px 20px; border-radius: 5px; text-decoration: none; display: inline-block; margin: 10px 0; }
        .login-btn { background: #4285f4; }
        .game-image { max-width: 100%; height: auto; margin: 20px 0; }
        footer { background: #333; color: white; text-align: center; padding: 20px; margin-top: 30px; }
        .hidden { display: none; }
        @media (max-width: 768px) {
            nav ul { flex-direction: column; align-items: center; }
            .mobile-menu { display: block; }
            .desktop-nav { display: none; }
        }