body {
  text-align: center;
  background-color: #f0f0f0;
  font-family: Arial, sans-serif;
}

#game-container {
  position: relative;
  display: inline-block;
}

#gameCanvas {
  background-color: #ffffff;
  border: 2px solid #000;
}

#score, #level, #timer {
  position: absolute;
  top: 10px;
  padding: 5px 10px;
  background: rgba(255, 255, 255, 0.8);
  border-radius: 5px;
  font-weight: bold;
}

#score { left: 10px; }
#level { left: 120px; }
#timer { left: 230px; }

#message {
  margin-top: 20px;
  font-size: 24px;
  color: green;
  white-space: pre-line; /* To preserve line breaks */
}

#restartButton {
  margin-top: 20px;
  padding: 10px 20px;
  font-size: 18px;
  cursor: pointer;
}