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);
}

.ls {
  display: grid;
  gap: 16px;
  justify-items: center;
}

.ls__badge {
  margin: 0;
  padding: 4px 12px;
  border-radius: 999px;
  background: rgba(23, 20, 26, 0.06);
  color: #17141a;
  font-weight: 700;
  font-size: 11px;
  font-variant-numeric: tabular-nums;
}

.ls__scene {
  padding: 40px;
}

.ls__btn {
  position: relative;
  border: 0;
  cursor: pointer;
  padding: 16px 32px;
  border-radius: 12px;
  background: #0a4fe8;
  color: #fff7e6;
  font-size: 15px;
  font-weight: 700;
  will-change: filter;
  --label-w: 0px;
  --label-o: 0;
  --underline-o: 0;
}

.ls__btn::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: calc(var(--label-w) + 16px);
  height: 28px;
  transform: translate(-50%, -50%);
  border-radius: 999px;
  background: rgba(255, 247, 230, 0.22);
  opacity: var(--label-o);
  pointer-events: none;
  z-index: 0;
}

.ls__label {
  position: relative;
  z-index: 1;
  display: inline-block;
  will-change: letter-spacing;
}

.ls__underline {
  position: absolute;
  left: 50%;
  bottom: 8px;
  transform: translateX(-50%);
  height: 2px;
  width: 0;
  background: #fff7e6;
  opacity: var(--underline-o);
  border-radius: 999px;
  pointer-events: none;
  z-index: 1;
}

.ls__btn:focus-visible {
  outline: 2px solid #fff7e6;
  outline-offset: 3px;
}

@media (max-width: 340px) {
  .ls__scene {
    padding: 24px;
  }
  .ls__btn {
    padding: 12px 24px;
    font-size: 13px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .ls__label {
    transition: none;
  }
}