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

html,
body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #05070f;
  background-image: radial-gradient(circle at 50% 40%, #101a30 0%, #05070f 70%);
  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 {
  display: flex;
  align-items: center;
  justify-content: center;
}

#stage {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
}

canvas#game {
  display: block;
  touch-action: none;
  border-radius: 10px;
  box-shadow: 0 0 80px rgba(70, 180, 190, 0.14), 0 0 0 1px rgba(120, 180, 220, 0.08);
}