body {
  display: flex;
  flex-direction: column;
  align-items: center;
  font-family: 'Arial', sans-serif;
  background: #87ceeb; /* langit biru */
  color: #333;
}

canvas {
  border: 2px solid #333;
  background-color: #a3d9a5; /* tanah hijau */
  margin-top: 20px;
  display: none;
}

#startScreen, #gameOverScreen {
  display: flex;
  flex-direction: column;
  align-items: center;
}

#gameOverScreen { display: none; }

button {
  padding: 10px 20px;
  font-size: 16px;
  margin-top: 10px;
  cursor: pointer;
}