* {
  margin: 0;
  padding: 0;
}
html,
body {
  overflow: hidden;
  position: relative;
}
canvas {
}

button {
  /* リセット */
  border: none;
  background: none;
}

li {
  list-style: none;
}

.buttons {
  position: absolute;
  width: 100%;
  padding: 20px 20px 28px;
  bottom: 0;
  left: 50%;
  translate: -50% 0;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 30px;
  background-color: #f4f4f4;
}

.buttons_item {
}

.buttons_item button {
  cursor: pointer;
  width: 100%;
  height: 100%;
  padding: 10px 20px;
  background-color: #fff;
  border-radius: 999px;
  box-shadow: 0 8px 0 #5e5e5e;
  border: 2px solid transparent;
  transition: all 0.2s;
  font-size: clamp(1.125rem, 3vw, 2rem);
}

.buttons_item button:not(#off).is-active {
  outline: none;
  background-color: #f7f7f7;
  box-shadow: 0 0 0 #333;
  border: 2px solid #333;
}

.buttons_item button#off.is-off {
  outline: none;
  background-color: #f7f7f7;
  box-shadow: 0 0 0 #333;
  border: 2px solid #333;
}

@media (max-width: 768px) {
  .buttons {
    gap: 16px;
    padding: 12px 16px 16px;
  }

.buttons_item button {
  padding: 8px 16px;
}
}