html, body {
      height: 100%;
      margin: 0;
      padding: 0;
      font-family: monospace;
      background: #222222;
      color: #eee;
    }

    .container {
      display: flex;
      flex-direction: column;
      height: 100%;
    }

    .tab-buttons {
      display: flex;
      justify-content: space-evenly;
      background-color: #2b2b2b;
      padding: 10px;
    }

    .tab-buttons button {
      padding: 5px 10px;
      background-color: #444;
      border: none;
      color: white;
      cursor: pointer;
    }

    .tab-buttons button.active {
      background-color: #666;
    }

    .tab-content {
      display: none;
      flex: 1;
      padding: 10px;
      overflow-y: auto;
      box-sizing: border-box;
    }

    .tab-content.active {
      display: block;
    }

    input, button, select {
      font-size: 12px;
      padding: 4px;
      width: 100%;
      margin: 3px 0;
      box-sizing: border-box;
    }

    .result {
      margin-top: 10px;
      white-space: pre;
      background: #2b2b2b;
      padding: 8px;
      border-radius: 5px;
      overflow-y: auto;
      max-height: 300px;
      font-size: 12px;
    }