body {
  background: #000;
  color: #0ff;
  font-family: monospace;
  text-align: center;
  padding: 2rem;
  user-select: none;
}

h1 {
  margin-bottom: 1rem;
  text-shadow: 0 0 10px #0ff;
}

#game-container {
  display: inline-block;
  position: relative;
  border: 3px solid #0ff;
  border-radius: 15px;
  box-shadow: 0 0 20px #0ff;
}

#game {
  background-color: #111;
  border-radius: 15px;
  display: block;
}

#score {
  margin-top: 1rem;
  font-size: 1.3rem;
  font-weight: bold;
  text-shadow: 0 0 10px #0ff;
}