body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        h1 { color: #e74c3c; text-align: center; margin-bottom: 30px; }
        h2 { color: #2980b9; border-bottom: 2px solid #3498db; padding-bottom: 5px; }
        h3 { color: #27ae60; }
        .logo { font-size: 28px; font-weight: bold; color: #e74c3c; text-align: center; margin: 20px 0; }
        nav { background: #f8f9fa; padding: 15px; margin-bottom: 20px; }
        nav ul { list-style: none; padding: 0; text-align: center; }
        nav ul li { display: inline; margin: 0 15px; }
        nav ul li a { text-decoration: none; color: #2c3e50; font-weight: bold; }
        .mobile-menu { display: none; text-align: center; background: #3498db; color: white; padding: 10px; cursor: pointer; }
        .btn { display: inline-block; padding: 12px 24px; background: #e74c3c; color: white; text-decoration: none; border-radius: 5px; margin: 10px 0; }
        .img-container { text-align: center; margin: 30px 0; }
        .img-container img { max-width: 100%; height: auto; border: 2px solid #ddd; }
        footer { background: #34495e; color: white; padding: 20px; text-align: center; margin-top: 40px; }
        @media (max-width: 768px) {
            nav ul { display: none; }
            .mobile-menu { display: block; }
            .active { display: block !important; }
        }