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, h2, h3 { color: #2c3e50; margin: 25px 0 15px; }
        h1 { font-size: 2.5em; border-bottom: 3px solid #e74c3c; padding-bottom: 10px; }
        h2 { font-size: 1.8em; border-left: 4px solid #3498db; padding-left: 10px; }
        h3 { font-size: 1.4em; color: #8e44ad; }
        .logo { font-size: 2.8em; font-weight: bold; color: #e74c3c; text-shadow: 2px 2px 4px rgba(0,0,0,0.2); margin: 20px 0; }
        .nav { background: #2c3e50; padding: 15px; display: flex; justify-content: space-between; align-items: center; }
        .nav a { color: white; text-decoration: none; margin: 0 10px; font-weight: bold; }
        .mobile-nav { display: none; }
        .btn { background: #e74c3c; color: white; padding: 10px 20px; border-radius: 5px; text-decoration: none; display: inline-block; margin: 10px 0; }
        img { max-width: 100%; height: auto; margin: 20px 0; border-radius: 8px; }
        .footer { background: #2c3e50; color: white; padding: 20px; text-align: center; margin-top: 40px; }
        @media (max-width: 768px) {
            .nav { flex-direction: column; }
            .mobile-nav { display: block; margin-bottom: 15px; }
            .desktop-nav { display: none; }
            .logo { font-size: 2.2em; }
        }