body {
  font-family: Arial, sans-serif;
  background-color: #1e1e1e;
  color: #fff;
  text-align: center;
  margin: 0;
  padding: 0;
}

h1 {
  margin-top: 20px;
  font-size: 32px;
  color: #66ff66;
}

#scoreBoard {
  position: absolute;
  bottom: 100%;
  left: 0;
  margin-bottom: 6px;
  font-size: 16px;
  font-weight: bold;
  color: #ffffff;
  background-color: rgba(0, 0, 0, 0.7);
  padding: 6px 12px;
  border-radius: 6px;
  z-index: 10;
  pointer-events: none;
}

#gameContainer {
  position: relative;
  display: inline-block;
  margin: 20px auto;
}

canvas#gameCanvas {
  display: block;
  background-color: #000;
  border: 4px solid #66ff66;
}

#controlPanel {
  margin-top: 20px;
}

#controlPanel button {
  background-color: #66ff66;
  color: black;
  padding: 10px 20px;
  margin: 5px;
  border: none;
  border-radius: 6px;
  font-size: 16px;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

#controlPanel button:hover {
  background-color: #55dd55;
}

@media (max-width: 480px) {
  canvas#gameCanvas {
    width: 90vw;
    height: 90vw;
  }

  #controlPanel button {
    width: 80%;
    font-size: 18px;
  }
}