body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        .logo { font-size: 28px; font-weight: bold; color: #e74c3c; text-align: center; margin: 20px 0; }
        nav { background: #2c3e50; padding: 15px; display: flex; justify-content: space-around; }
        nav a { color: white; text-decoration: none; }
        .mobile-menu { display: none; background: #2c3e50; color: white; padding: 10px; text-align: center; cursor: pointer; }
        h1 { color: #e74c3c; border-bottom: 2px solid #3498db; padding-bottom: 10px; }
        h2 { color: #3498db; margin-top: 30px; }
        h3 { color: #2ecc71; }
        .download-btn, .login-btn { display: inline-block; background: #e74c3c; color: white; padding: 12px 25px; margin: 15px 0; border-radius: 5px; text-decoration: none; font-weight: bold; }
        .download-btn:hover, .login-btn:hover { background: #c0392b; }
        img { max-width: 100%; height: auto; display: block; margin: 20px auto; border-radius: 8px; }
        .tags { margin: 20px 0; }
        .tags a { background: #3498db; color: white; padding: 5px 10px; margin: 5px; border-radius: 3px; text-decoration: none; }
        footer { background: #2c3e50; color: white; padding: 20px; text-align: center; margin-top: 40px; }
        @media (max-width: 768px) {
            nav { flex-direction: column; display: none; }
            .mobile-menu { display: block; }
            .nav-active { display: flex; flex-direction: column; }
        }