body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        .logo { font-size: 2.5em; font-weight: bold; color: #FF4500; text-shadow: 2px 2px 4px rgba(0,0,0,0.2); margin: 20px 0; }
        nav { background: #333; padding: 10px; }
        nav ul { list-style: none; display: flex; justify-content: space-around; }
        nav ul li a { color: white; text-decoration: none; }
        .mobile-nav-btn { display: none; background: #FF4500; color: white; border: none; padding: 10px; cursor: pointer; }
        h1 { color: #FF4500; border-bottom: 2px solid #FF4500; padding-bottom: 10px; }
        h2 { color: #E67E22; margin-top: 30px; }
        h3 { color: #3498DB; }
        .download-btn, .login-btn { background: #2ECC71; color: white; padding: 12px 25px; text-decoration: none; margin: 15px 0; display: inline-block; border-radius: 5px; }
        .login-btn { background: #3498DB; }
        img { max-width: 100%; height: auto; margin: 20px 0; }
        .footer { margin-top: 50px; padding: 20px; background: #333; color: white; }
        @media (max-width: 768px) {
            nav ul { display: none; flex-direction: column; }
            .mobile-nav-btn { display: block; }
            .active { display: flex !important; }
        }