body {
        font-family: Arial, sans-serif;
        max-width: 800px;
        margin: 0 auto;
        padding: 20px;
        background-color: #f5f5f5;
      }
      .chat-container {
        border: 1px solid #ccc;
        height: 400px;
        overflow-y: auto;
        padding: 10px;
        margin-bottom: 20px;
        background-color: #f9f9f9;
        border-radius: 8px;
      }
      .message {
        margin-bottom: 10px;
        padding: 8px;
        background-color: white;
        border-radius: 5px;
        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
      }
      .message-header {
        font-weight: bold;
        color: #666;
        font-size: 12px;
      }
      .message-content {
        margin-top: 5px;
      }
      .system-message {
        background-color: #e7f3ff;
        font-style: italic;
      }
      .input-container {
        display: flex;
        gap: 10px;
        margin-bottom: 10px;
      }
      input[type="text"] {
        flex: 1;
        padding: 10px;
        border: 1px solid #ccc;
        border-radius: 4px;
        font-size: 14px;
      }
      button {
        padding: 10px 20px;
        background-color: #007bff;
        color: white;
        border: none;
        border-radius: 4px;
        cursor: pointer;
        font-size: 14px;
        transition: background-color 0.2s;
      }
      button:hover {
        background-color: #0056b3;
      }
      button:disabled {
        background-color: #6c757d;
        cursor: not-allowed;
      }
      .status {
        padding: 10px;
        margin-bottom: 10px;
        border-radius: 4px;
        font-weight: bold;
      }
      .status.connected {
        background-color: #d4edda;
        color: #155724;
      }
      .status.disconnected {
        background-color: #f8d7da;
        color: #721c24;
      }
      .header {
        text-align: center;
        margin-bottom: 20px;
        padding: 20px;
        background-color: white;
        border-radius: 8px;
        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
      }
      .config-info {
        background-color: #e9ecef;
        padding: 10px;
        border-radius: 4px;
        margin-bottom: 20px;
        font-size: 12px;
        color: #495057;
      }