body { font-family: 'Arial', sans-serif; line-height: 1.6; color: #333; max-width: 1200px; margin: 0 auto; padding: 20px; }
        .logo { font-size: 28px; font-weight: bold; color: #0066cc; text-transform: uppercase; letter-spacing: 2px; }
        nav { background: #f5f5f5; padding: 15px; margin-bottom: 30px; }
        nav a { margin: 0 15px; text-decoration: none; color: #0066cc; }
        .mobile-nav-btn { display: none; background: #0066cc; color: white; padding: 8px 15px; border: none; }
        h1 { color: #003366; margin-bottom: 20px; }
        h2 { color: #0055aa; margin: 25px 0 15px; }
        h3 { color: #0077cc; margin: 20px 0 10px; }
        img { max-width: 100%; height: auto; margin: 20px 0; }
        .btn { display: inline-block; padding: 12px 25px; background: #0066cc; color: white; text-decoration: none; border-radius: 5px; margin: 10px 0; }
        .btn:hover { background: #0055aa; }
        table { width: 100%; border-collapse: collapse; margin: 20px 0; }
        table, th, td { border: 1px solid #ddd; }
        th, td { padding: 12px; text-align: left; }
        th { background: #f5f5f5; }
        footer { margin-top: 40px; padding: 20px 0; border-top: 1px solid #eee; }
        @media (max-width: 768px) {
            .mobile-nav-btn { display: block; }
            nav { display: none; }
            nav.active { display: block; }
            body { padding: 10px; }
        }