body {
  margin: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
  background-color: black;
  color: white;
}

canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.controls {
  position: absolute;
  bottom: 10px;
  background: rgba(0, 0, 0, 0.7);
  padding: 10px;
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.buttons {
  margin-top: 10px;
}

.hidden {
  display: none;
}