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);
}

.notice {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 14px 28px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
  color: #17141a;
  font-weight: 700;
  font-size: clamp(15px, 4vw, 18px);
  line-height: 1;
  font-family: inherit;
}

.notice__dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #fff7e6;
  flex: none;
}

.a-flash {
  animation: flash 1s ease-in-out infinite;
}

@keyframes flash {
  0%, 50%, 100% {
    opacity: 1;
  }
  25%, 75% {
    opacity: 0.15;
  }
}
@media (prefers-reduced-motion: reduce) {
  .a-flash {
    animation: none;
  }
}