html,
body {
  margin: 0;
  padding: 0;
  height: 100%;
  width: 100%;
  background: #020a11;
  overflow: hidden;
  overscroll-behavior: none;
  touch-action: none;
  -webkit-user-select: none;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  font-family: "Avenir Next", "Segoe UI", system-ui, -apple-system, sans-serif;
}

#stage {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(120% 80% at 50% 0%, #08202f 0%, #020a11 62%, #010609 100%);
}

#game {
  display: block;
  touch-action: none;
  border-radius: 6px;
  box-shadow:
    0 0 0 1px rgba(90, 210, 255, 0.14),
    0 0 70px rgba(30, 140, 200, 0.22),
    0 26px 60px rgba(0, 0, 0, 0.65);
  background: #04121d;
}