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);
}

.fc-card {
  width: min(260px, 84vw);
  box-sizing: border-box;
  border-radius: 16px;
  padding: 20px;
  background: rgba(23, 20, 26, 0.55);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.fc-card__tag {
  color: #fff7e6;
  opacity: 0.8;
  font: 600 12px/1 -apple-system, "Segoe UI", sans-serif;
}

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

.fc-row {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #fff7e6;
  font: 500 12px/1 -apple-system, "Segoe UI", sans-serif;
  opacity: 0;
  transform: translateX(-12px);
  transition: opacity 320ms ease-out, transform 320ms ease-out;
}

.fc-check {
  flex: 0 0 auto;
  width: 6px;
  height: 10px;
  border-right: 2px solid #2f6df6;
  border-bottom: 2px solid #2f6df6;
  transform: rotate(45deg);
  margin-left: 4px;
}

.fc-card:hover .fc-row {
  opacity: 1;
  transform: none;
}

.fc-card:hover .fc-row:nth-child(2) {
  transition-delay: 120ms;
}

.fc-card:hover .fc-row:nth-child(3) {
  transition-delay: 240ms;
}

@keyframes fc-in {
  0% {
    opacity: 0;
    transform: translateX(-12px);
  }
  20%, 85% {
    opacity: 1;
    transform: none;
  }
  100% {
    opacity: 0;
    transform: translateX(-12px);
  }
}
.fc-card.is-demo .fc-row {
  animation: fc-in 2s ease-out infinite;
}

.fc-card.is-demo .fc-row:nth-child(2) {
  animation-delay: 140ms;
}

.fc-card.is-demo .fc-row:nth-child(3) {
  animation-delay: 280ms;
}

@media (prefers-reduced-motion: reduce) {
  .fc-row,
  .fc-card.is-demo .fc-row {
    animation: none !important;
    transition: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}