body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        .mobile-nav { display: none; background: #007bff; color: white; padding: 10px; text-align: center; cursor: pointer; }
        nav { background: #007bff; padding: 15px; margin-bottom: 30px; }
        nav ul { list-style: none; padding: 0; display: flex; justify-content: space-around; }
        nav ul li a { color: white; text-decoration: none; font-weight: bold; }
        .logo { font-size: 24px; font-weight: 900; color: #ff9900; text-transform: uppercase; }
        h1 { color: #003366; border-bottom: 3px solid #ff9900; padding-bottom: 10px; }
        h2 { color: #0056b3; margin-top: 25px; }
        h3 { color: #007bff; }
        .download-btn, .login-btn { display: inline-block; background: #28a745; color: white; padding: 12px 25px; margin: 15px 0; border-radius: 5px; text-decoration: none; font-weight: bold; }
        .login-btn { background: #007bff; }
        img { max-width: 100%; height: auto; margin: 20px 0; border-radius: 8px; }
        .tag { background: #f0f0f0; padding: 5px 10px; margin: 5px; border-radius: 20px; display: inline-block; }
        footer { margin-top: 50px; padding: 20px; background: #f8f9fa; border-top: 2px solid #ddd; }
        @media (max-width: 768px) {
            nav ul { flex-direction: column; text-align: center; }
            .mobile-nav { display: block; }
            nav { display: none; }
        }