body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        h1 { color: #2c3e50; font-size: 2.5em; text-align: center; margin-bottom: 30px; }
        h2 { color: #e74c3c; border-bottom: 2px solid #e74c3c; padding-bottom: 5px; margin: 25px 0 15px; }
        h3 { color: #3498db; margin: 20px 0 10px; }
        .logo { font-size: 2em; font-weight: bold; color: #e74c3c; text-align: center; margin: 20px 0; }
        .nav { background: #2c3e50; padding: 10px; display: flex; justify-content: space-around; flex-wrap: wrap; }
        .nav a { color: white; text-decoration: none; padding: 5px 10px; }
        .mobile-nav-toggle { display: none; background: #e74c3c; color: white; border: none; padding: 10px; cursor: pointer; }
        .btn { display: inline-block; background: #e74c3c; color: white; padding: 10px 20px; margin: 10px 0; text-decoration: none; border-radius: 5px; }
        img { max-width: 100%; height: auto; margin: 20px 0; border-radius: 8px; }
        .download-section { background: #f9f9f9; padding: 20px; border-radius: 8px; text-align: center; margin: 30px 0; }
        .footer { background: #2c3e50; color: white; padding: 20px; text-align: center; margin-top: 40px; }
        .tags { margin: 20px 0; }
        .tag { background: #3498db; color: white; padding: 5px 10px; margin: 5px; display: inline-block; border-radius: 20px; }
        @media (max-width: 768px) {
            .nav { flex-direction: column; display: none; }
            .nav.active { display: flex; }
            .mobile-nav-toggle { display: block; }
            h1 { font-size: 2em; }
        }