.tab-group {
            margin: 20px 0;
        }
        .tabs {
            display: flex;
            border-bottom: 2px solid #ccc;
        }
        .tab {
            padding: 10px 20px;
            cursor: pointer;
            border: 1px solid #ccc;
            border-bottom: none;
            background-color: #f9f9f9;
            transition: background-color 0.3s;
        }
        .tab:hover {
            background-color: #e0e0e0;
        }
        .tab.active {
            background-color: #fff;
            border-top: 2px solid #0078d4;
            border-left: 2px solid #0078d4;
            border-right: 2px solid #0078d4;
            border-bottom: 2px solid #007BFF; /* Ensure it looks like a connected tab */
        }
        
        .content {
            display: none;
            padding: 20px;
            border: 1px solid #ccc;
            border-top: none;
        }
        .content.active {
            display: block;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            margin-top: 10px;
        }
        th, td {
            border: 1px solid #ddd;
            padding: 8px;
            text-align: left;
        }
        th {
            background-color: #f4f4f4;
        }
        .note {
            background-color: #e7f3fe;
            border-left: 4px solid #2196F3;
            padding: 15px;
            margin: 20px 0;
        }
        .columns {
            display: flex;
            gap: 20px;
        }
        .column {
            flex: 1;
        }
        ul {
            list-style: none;
            padding-left: 20px;
        }
        ul li {
            margin-bottom: 5px;
        }
        .toc {
            margin-bottom: 20px;
        }
        .toc a {
            display: block;
            text-decoration: none;
            color: #0078D4;
            margin: 5px 0;
        }
        .toc a:hover {
            text-decoration: underline;
        }
        section {
            margin-top: 50px;
            padding: 10px;
            border-top: 1px solid #ccc;
        }