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: #FF4500; margin: 20px 0; text-transform: uppercase; }
        nav { background: #1E90FF; padding: 15px; display: flex; justify-content: space-between; align-items: center; }
        nav a { color: white; text-decoration: none; margin: 0 10px; }
        .mobile-nav-btn { display: none; background: #FF8C00; color: white; border: none; padding: 8px 15px; }
        h1 { color: #FF4500; border-bottom: 3px solid #FFD700; padding-bottom: 10px; }
        h2 { color: #1E90FF; margin-top: 30px; }
        h3 { color: #2E8B57; }
        .download-btn, .login-btn { background: #FF8C00; color: white; padding: 12px 25px; text-decoration: none; display: inline-block; margin: 15px 0; border-radius: 5px; }
        .image-container { text-align: center; margin: 25px 0; }
        img { max-width: 100%; height: auto; border-radius: 8px; }
        .table-container { margin: 20px 0; overflow-x: auto; }
        table { width: 100%; border-collapse: collapse; }
        th, td { border: 1px solid #ddd; padding: 12px; text-align: left; }
        th { background: #1E90FF; color: white; }
        .highlight { background: #FFF8DC; padding: 15px; border-left: 5px solid #FFD700; }
        .tags { margin: 20px 0; }
        .tag { background: #E0E0E0; padding: 5px 10px; margin: 5px; display: inline-block; border-radius: 15px; }
        footer { margin-top: 40px; padding: 20px; background: #333; color: white; }
        @media (max-width: 768px) {
            nav { flex-direction: column; }
            .mobile-nav-btn { display: block; }
            .desktop-nav { display: none; }
            .desktop-nav.active { display: block; }
        }