body {
  margin: 0;
  background: #1d1d1d;
  overflow: hidden;
  font-family: Arial, sans-serif;
  height: 100vh;
  position: relative;
}

canvas {
  display: block;
  width: 100vw;
  height: 100vh;
}

#score {
  position: absolute;
  top: 10px;
  right: 20px;
  color: white;
  font-size: 24px;
  font-weight: bold;
  z-index: 10;
}