html,
body {
  margin: 0;
  padding: 0;
}

canvas {
  display: block;
}

.play-button {
  width: 80px;
  height: 80px;
  background-color: rgba(72, 72, 72, 0.8);
  border: none;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
  transition: background 0.3s ease, transform 0.2s ease;
}

.play-button:hover {
  background-color: rgba(72, 64, 64, 1);
  transform: scale(1.1);
}

.play-button::after {
  content: "";
  display: block;
  width: 0;
  height: 0;
  border-left: 20px solid white;
  border-top: 12px solid transparent;
  border-bottom: 12px solid transparent;
  margin-left: 5px;
}