body {
  margin: 0;
  background: radial-gradient(circle at 20% 20%, #1f2836 0%, #101218 40%, #0a0b10 100%);
  color: #e9eef5;
  overflow: hidden;
}

canvas {
  display: block;
  width: 100vw;
  height: 100vh;
  touch-action: none;
}