body {
  margin: 0;
  overflow: hidden;
  background: #222;
  font-family: Arial, Helvetica, sans-serif;
}

canvas {
  display: block;
  background: #343232;
}

#controls {
  position: fixed;
  top: 10px;
  right: 10px;
  display: flex;
  gap: 8px;
}

#controls button {
  font-size: 16px;
  padding: 5px 10px;
  cursor: pointer;
}