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);
}

.spinner {
  width: clamp(48px, 14vw, 72px);
  height: clamp(48px, 14vw, 72px);
  border-radius: 50%;
  border: 6px solid rgba(255, 247, 230, 0.22);
  border-top-color: #2f6df6;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}
@media (prefers-reduced-motion: reduce) {
  .spinner {
    animation: none;
    border-top-color: rgba(255, 247, 230, 0.22);
  }
}