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);
}

.kr-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  font-family: -apple-system, "Segoe UI", sans-serif;
  color: #fff7e6;
}

.kr-label {
  font-weight: 500;
  font-size: 13px;
  line-height: 1;
  font-family: inherit;
  opacity: 0.7;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.kr-badge {
  padding: 12px 24px;
  border-radius: 999px;
  background: #2f6df6;
  color: #fff7e6;
  font-weight: 800;
  font-size: 22px;
  line-height: 1;
  font-family: inherit;
  box-shadow: 0 14px 24px rgba(23, 20, 26, 0.32);
}

@keyframes kr-pop {
  0% {
    opacity: 0;
    transform: scale(0.4);
  }
  28% {
    opacity: 1;
    transform: scale(1.14);
  }
  38% {
    opacity: 1;
    transform: scale(0.96);
  }
  48%, 100% {
    opacity: 1;
    transform: scale(1);
  }
}
.kr-badge.is-demo {
  animation: kr-pop 2s cubic-bezier(0.2, 1.4, 0.4, 1) infinite;
}

@media (prefers-reduced-motion: reduce) {
  .kr-badge.is-demo {
    animation: none !important;
    opacity: 1;
    transform: none;
  }
}