html,
body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #04050c;
  touch-action: none;
  overscroll-behavior: none;
  -webkit-user-select: none;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

#stage {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(circle at 50% 62%, #101a3a 0%, #06080f 62%, #03040a 100%);
}

canvas {
  display: block;
  touch-action: none;
  border-radius: 6px;
  box-shadow:
    0 0 0 1px rgba(90, 200, 255, 0.12),
    0 24px 90px rgba(0, 0, 0, 0.75),
    0 0 120px rgba(30, 90, 180, 0.18);
}