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

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #02060d;
  font-family: "Trebuchet MS", Verdana, sans-serif;
  -webkit-tap-highlight-color: transparent;
  -webkit-user-select: none;
  user-select: none;
  touch-action: none;
  overscroll-behavior: none;
}

#stage {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(circle at 50% 12%, #0b2c4a 0%, #04101f 46%, #01050b 100%);
}

#game {
  display: block;
  touch-action: none;
  -webkit-user-select: none;
  user-select: none;
  box-shadow: 0 0 60px rgba(45, 210, 255, 0.16), 0 0 120px rgba(120, 60, 255, 0.12);
  border-radius: 14px;
  background: #04101f;
}