body {
  margin: 0;
  overflow: hidden;
  background-color: #000;
}

canvas {
  display: block;
}

.serve-btn {
  position: absolute;
  top: 20px;
  left: 20px;
  padding: 10px 20px;
  font-size: 16px;
  z-index: 1;
  cursor: pointer;
}

.marbles-btn {
  position: absolute;
  top: 70px;
  left: 20px; /* Positioned to the right of the serve button */
  padding: 10px 20px;
  font-size: 16px;
  z-index: 1;
  cursor: pointer;
}

.buttons {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
}

.cage-btn {
  padding: 10px 20px;
  font-size: 16px;
  background-color: rgba(255, 255, 255, 0.8);
  border: none;
  border-radius: 5px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.cage-btn:hover {
  background-color: rgba(255, 255, 255, 1);
  transform: scale(1.05);
}

.cage-btn:active {
  transform: scale(0.95);
}