body {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    height: 100vh;
    margin: 0;
  }
  
  .controls {
    margin-bottom: 20px;
  }
  
  canvas {
    border: 1px solid #000;
  }
  
  #loadingIndicator {
    margin-top: 10px;
    color: green;
  }
  
  .hidden {
    display: none;
  }