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);
}

.cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  max-width: 260px;
  justify-content: center;
}

.cloud li {
  padding: 4px 12px;
  border-radius: 999px;
  background: rgba(110, 200, 255, 0.14);
  border: 1px solid rgba(110, 200, 255, 0.4);
  color: #fff;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  font-weight: 600;
  font-size: 12px;
  transform: translateY(10px);
  opacity: 0;
}

.cloud li:nth-child(1) {
  background: rgba(110, 200, 255, 0.14);
  border-color: rgba(110, 200, 255, 0.4);
}

.cloud li:nth-child(2) {
  background: rgba(185, 160, 255, 0.14);
  border-color: rgba(185, 160, 255, 0.4);
}

.cloud li:nth-child(3) {
  background: rgba(76, 212, 166, 0.14);
  border-color: rgba(76, 212, 166, 0.4);
}

.cloud li:nth-child(4) {
  background: rgba(255, 158, 187, 0.14);
  border-color: rgba(255, 158, 187, 0.4);
}

.cloud li:nth-child(5) {
  background: rgba(110, 200, 255, 0.14);
  border-color: rgba(110, 200, 255, 0.4);
}

.cloud li:nth-child(6) {
  background: rgba(185, 160, 255, 0.14);
  border-color: rgba(185, 160, 255, 0.4);
}

.stage.is-demo .cloud li {
  animation: rise 2s ease-out infinite;
  animation-delay: calc(var(--i) * 90ms);
}

@keyframes rise {
  0% {
    opacity: 0;
    transform: translateY(10px);
  }
  22%, 70% {
    opacity: 1;
    transform: translateY(0);
  }
  92%, 100% {
    opacity: 0;
    transform: translateY(-6px);
  }
}
.cloud li {
  --glow: mix(#fff, $color, 40%);
  --glow-base: rgba($color, .4);
}

.cloud li:nth-child(2), .cloud li:nth-child(6) {
  --glow: mix(#fff, $subject-lilac, 40%);
  --glow-base: rgba($subject-lilac, .4);
}

.cloud li:nth-child(3) {
  --glow: mix(#fff, $subject-mint, 40%);
  --glow-base: rgba($subject-mint, .4);
}

.cloud li:nth-child(4) {
  --glow: mix(#fff, $subject-pink, 40%);
  --glow-base: rgba($subject-pink, .4);
}

.stage.is-demo .cloud li {
  animation: rise 2s ease-out infinite, border-glow 2s ease-out infinite;
  animation-delay: calc(var(--i) * 90ms);
}

@keyframes border-glow {
  0% {
    border-color: var(--glow-base);
  }
  22% {
    border-color: var(--glow);
  }
  46%, 100% {
    border-color: var(--glow-base);
  }
}
@media (prefers-reduced-motion: reduce) {
  .stage.is-demo .cloud li {
    animation: none;
    opacity: 1;
    transform: none;
  }
}