body {
  background: #111;
  color: #fff;
  font-family: system-ui, sans-serif;
  text-align: center;
  margin: 0;
  padding: 0;
}

#container {
  margin-top: 30px;
}

h1 {
  font-size: 32px;
  color: #3af;
  margin-bottom: 10px;
}

#hud {
  margin-bottom: 8px;
  font-size: 18px;
}

#hud span {
  margin: 0 10px;
}

#game {
  background: #000;
  border: 3px solid #3af;
  border-radius: 6px;
}

.controls {
  margin-top: 10px;
  font-size: 14px;
  opacity: 0.8;
}

#restartBtn {
  margin-top: 15px;
  padding: 10px 20px;
  font-size: 18px;
  background: #3af;
  color: #000;
  border: none;
  border-radius: 6px;
  cursor: pointer;
}

#restartBtn:hover {
  background: #5cf;
}