.toolbar {
      background: #fff;
      padding: 10px;
      box-shadow: 0 2px 8px rgba(0,0,0,0.1);
      display: flex;
      justify-content: flex-end;
      gap: 10px;
    }

    button {
      padding: 8px 16px;
      border: none;
      background: #007bff;
      color: white;
      cursor: pointer;
      border-radius: 4px;
      transition: background 0.3s;
    }

    button:hover {
      background: #0056b3;
    }

    iframe {
      width: 100%;
      height: calc(100vh - 60px);
      border: none;
    }