body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 0 20px; }
        .logo { font-size: 2.5em; font-weight: bold; color: #FF9800; text-shadow: 2px 2px 4px rgba(0,0,0,0.2); margin: 20px 0; }
        nav { background: #333; padding: 10px; display: flex; justify-content: space-between; align-items: center; }
        nav a { color: white; text-decoration: none; padding: 0 15px; }
        .mobile-menu { display: none; }
        h1 { color: #FF5722; border-bottom: 3px solid #FF9800; padding-bottom: 10px; }
        h2 { color: #4CAF50; margin-top: 30px; }
        h3 { color: #2196F3; }
        .download-btn, .login-btn { display: inline-block; background: #FF5722; color: white; padding: 12px 25px; margin: 15px 0; border-radius: 5px; text-decoration: none; font-weight: bold; }
        .btn-container { text-align: center; margin: 30px 0; }
        img { max-width: 100%; height: auto; margin: 20px 0; border-radius: 8px; }
        .gallery { display: flex; justify-content: space-around; flex-wrap: wrap; }
        .gallery img { width: 30%; margin: 10px; }
        table { width: 100%; border-collapse: collapse; margin: 20px 0; }
        th, td { border: 1px solid #ddd; padding: 12px; text-align: left; }
        th { background-color: #f2f2f2; }
        footer { background: #333; color: white; padding: 20px; text-align: center; margin-top: 50px; }
        @media (max-width: 768px) {
            nav { flex-direction: column; }
            .desktop-menu { display: none; }
            .mobile-menu { display: block; }
            .gallery img { width: 100%; }
        }