html,
body {
  margin: 0;
  height: 100%;
  overflow: hidden;
  background: #1a1040;
  font-family: system-ui, sans-serif;
}

canvas {
  display: block;
}

#hud {
  position: fixed;
  top: 16px;
  left: 0;
  right: 0;
  text-align: center;
  color: #fff;
  pointer-events: none;
}

#score {
  font-size: 22px;
  font-weight: bold;
  text-shadow: 0 2px 4px #000;
}

#msg {
  margin-top: 12px;
  font-size: 28px;
  font-weight: bold;
  color: #ffd60a;
  text-shadow: 0 2px 6px #000;
}