* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  overflow: hidden;
  background: #04030f;
  background-image: radial-gradient(120% 80% at 50% 0%, #101438 0%, #06040f 60%, #03020a 100%);
  overscroll-behavior: none;
  -webkit-tap-highlight-color: transparent;
}

body {
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "Trebuchet MS", "Segoe UI", system-ui, sans-serif;
  user-select: none;
  -webkit-user-select: none;
  touch-action: none;
}

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

#game {
  display: block;
  touch-action: none;
  cursor: crosshair;
  border-radius: 10px;
  box-shadow:
    0 0 0 1px rgba(90, 210, 255, 0.22),
    0 0 44px rgba(40, 140, 255, 0.28),
    0 24px 80px rgba(0, 0, 0, 0.7);
  background: #05081f;
}