* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  width: 100%;
  overflow: hidden;
  background: #04030a;
}

body {
  display: flex;
  align-items: center;
  justify-content: center;
  touch-action: none;
  overscroll-behavior: none;
  -webkit-user-select: none;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(circle at 50% 38%, #14102a 0%, #080614 55%, #000000 100%);
}

#stage {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

canvas {
  display: block;
  touch-action: none;
  background: #04030a;
  box-shadow:
    0 0 0 1px rgba(140, 120, 255, 0.10),
    0 0 70px rgba(120, 100, 255, 0.14),
    0 0 160px rgba(90, 60, 200, 0.10);
}