html, body {
  margin: 0;
  overflow: hidden;
}

.stage {
  box-sizing: border-box;
  min-height: 100vh;
  display: grid;
  place-items: center;
  margin: 0;
  background: #ffffff;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  padding: clamp(8px, 4vw, 24px);
}

.btn {
  box-sizing: border-box;
  width: 240px;
  height: 64px;
  border: none;
  border-radius: 12px;
  background: #e7cfd8;
  color: #17141a;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  font-weight: 800;
  font-size: 18px;
  cursor: pointer;
  box-shadow: 0 8px 0 rgb(75.9215686275%, 51.8431372549%, 60.8725490196%), 0 14px 12px rgba(23, 20, 26, 0.22);
  transition: transform 220ms ease-out, box-shadow 220ms ease-out;
}

.btn:active {
  transform: translateY(8px);
  box-shadow: 0 0 0 rgb(75.9215686275%, 51.8431372549%, 60.8725490196%), 0 2px 4px rgba(23, 20, 26, 0.22);
}

.btn:focus-visible {
  outline: 3px solid #2f6df6;
  outline-offset: 4px;
}

.stage.is-demo .btn {
  animation: press 2s ease-out infinite;
}

@keyframes press {
  0%, 20% {
    transform: translateY(0);
    box-shadow: 0 8px 0 rgb(75.9215686275%, 51.8431372549%, 60.8725490196%), 0 14px 12px rgba(23, 20, 26, 0.22);
  }
  35%, 55% {
    transform: translateY(8px);
    box-shadow: 0 0 0 rgb(75.9215686275%, 51.8431372549%, 60.8725490196%), 0 2px 4px rgba(23, 20, 26, 0.22);
  }
  70% {
    transform: translateY(-3px);
    box-shadow: 0 11px 0 rgb(75.9215686275%, 51.8431372549%, 60.8725490196%), 0 17px 12px rgba(23, 20, 26, 0.22);
  }
  85%, 100% {
    transform: translateY(0);
    box-shadow: 0 8px 0 rgb(75.9215686275%, 51.8431372549%, 60.8725490196%), 0 14px 12px rgba(23, 20, 26, 0.22);
  }
}
@media (prefers-reduced-motion: reduce) {
  .stage.is-demo .btn {
    animation: none;
  }
}