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

.stage {
  box-sizing: border-box;
  min-height: 100vh;
  display: grid;
  place-items: center;
  margin: 0;
  background: #17141a;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  padding: clamp(8px, 4vw, 24px);
}

.bsf {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  width: min(100%, 280px);
}

.bsf__view {
  position: relative;
  box-sizing: border-box;
  width: 100%;
  height: 188px;
  overflow-y: auto;
  overflow-x: hidden;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.06);
  padding: 12px;
  scrollbar-width: thin;
}

.bsf__track {
  list-style: none;
  margin: 0;
  padding: 0 0 48px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.bsf__row {
  box-sizing: border-box;
  padding: 12px 16px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
  color: #ffffff;
  font-weight: 600;
  font-size: 12px;
}

.bsf__sentinel {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 30px;
  pointer-events: none;
}

.bsf__ring {
  display: block;
  width: 22px;
  height: 22px;
  opacity: 0;
  border-radius: 999px;
  border: 3px solid rgba(255, 255, 255, 0.18);
  border-top-color: #2f6df6;
  box-sizing: border-box;
}

.bsf__hint {
  margin: 0;
  font-size: 11px;
  color: rgba(255, 255, 255, 0.55);
  text-align: center;
}

@media (max-width: 340px) {
  .bsf {
    gap: 4px;
  }
  .bsf__view {
    height: 90px;
  }
  .bsf__row {
    padding: 8px 12px;
    font-size: 11px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .bsf__ring {
    animation: none !important;
  }
}