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

.stage {
  box-sizing: border-box;
  min-height: 100vh;
  display: grid;
  place-items: center;
  margin: 0;
  background: #ff4d1f;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  padding: clamp(8px, 4vw, 24px);
}

.stage {
  position: relative;
}

.gsc {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.gsc__viewport {
  position: relative;
  width: 220px;
  height: 150px;
  overflow-y: auto;
  overflow-x: hidden;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(23, 20, 26, 0.12);
  touch-action: pan-y;
  overscroll-behavior: contain;
  scrollbar-width: thin;
}

.gsc__pad-top {
  height: 24px;
}

.gsc__pad-bottom {
  height: 24px;
}

.gsc__spacer {
  height: 84px;
}

.gsc__card {
  margin: 0 12px;
  height: 48px;
  border-radius: 12px;
  background: #ff9ebb;
  color: #17141a;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 600;
  box-shadow: 0 14px 24px rgba(23, 20, 26, 0.32);
  opacity: 0;
  transform: translateY(-40px);
  will-change: transform, opacity;
}

.gsc__hint {
  color: rgba(23, 20, 26, 0.72);
  font-size: 12px;
  text-align: center;
}

@media (max-width: 340px) {
  .gsc {
    gap: 8px;
  }
  .gsc__viewport {
    width: 176px;
    height: 90px;
  }
  .gsc__card {
    height: 34px;
  }
  .gsc__spacer {
    height: 48px;
  }
  .gsc__hint {
    font-size: 11px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .gsc__card {
    transition: none !important;
    animation: none !important;
  }
}