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);
}

.card {
  box-sizing: border-box;
  width: min(300px, 100%);
  padding: clamp(16px, 6vw, 26px) clamp(16px, 6vw, 24px);
  border-radius: 16px;
  background: #0a4fe8;
  color: #fff;
  text-align: left;
}
.card__eyebrow {
  margin: 0 0 6px;
  font-weight: 700;
  font-size: 11px;
  line-height: 1;
  font-family: inherit;
  letter-spacing: 0.12em;
  color: #fff7e6;
}
.card__title {
  margin: 0 0 8px;
  font-weight: 700;
  font-size: clamp(16px, 5vw, 20px);
  line-height: 1.3;
  font-family: inherit;
}
.card__body {
  margin: 0;
  font-weight: 400;
  font-size: 14px;
  line-height: 1.5;
  font-family: inherit;
  color: #fff7e6;
}
@supports (animation-timeline: view()) {
  .card {
    animation: fade-up-reveal ease-out both;
    animation-timeline: view();
    animation-range: entry 0% cover 30%;
  }
}
@supports not (animation-timeline: view()) {
  .card {
    opacity: 1;
    transform: none;
  }
}

@keyframes fade-up-reveal {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.card.is-demo {
  animation: fade-up-loop 2s ease-out infinite;
}

@keyframes fade-up-loop {
  0% {
    opacity: 0;
    transform: translateY(48px);
  }
  30% {
    opacity: 1;
    transform: translateY(0);
  }
  75% {
    opacity: 1;
    transform: translateY(0);
  }
  100% {
    opacity: 0;
    transform: translateY(48px);
  }
}
@media (prefers-reduced-motion: reduce) {
  .card, .card.is-demo {
    animation: none !important;
    opacity: 1;
    transform: none;
  }
}