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

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

#stage {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(ellipse at 50% 38%, #131a44 0%, #080b1e 45%, #04050d 78%);
}

canvas#game {
  display: block;
  touch-action: none;
  border-radius: 8px;
  box-shadow:
    0 0 0 1px rgba(120, 190, 255, 0.10),
    0 24px 90px rgba(40, 110, 255, 0.22),
    0 0 140px rgba(120, 60, 255, 0.12);
}