body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        .logo { font-size: 28px; font-weight: bold; color: #ff6b35; text-shadow: 1px 1px 2px rgba(0,0,0,0.2); }
        nav { background: #f8f9fa; padding: 15px; margin-bottom: 30px; border-radius: 8px; }
        .mobile-nav-btn { display: none; background: #ff6b35; color: white; border: none; padding: 10px; cursor: pointer; }
        h1 { color: #1a5276; border-bottom: 2px solid #ff6b35; padding-bottom: 10px; }
        h2 { color: #2874a6; margin-top: 25px; }
        h3 { color: #3498db; }
        .btn { display: inline-block; background: #ff6b35; color: white; padding: 12px 25px; margin: 15px 0; border-radius: 5px; text-decoration: none; font-weight: bold; }
        .highlight { background: #fffde7; padding: 3px 8px; border-radius: 3px; }
        img { max-width: 100%; height: auto; margin: 20px 0; border-radius: 8px; }
        @media (max-width: 768px) {
            .mobile-nav-btn { display: block; }
            nav ul { display: none; }
            body { padding: 10px; }
        }