html, body {
  margin: 0;
  overflow: hidden;
}

.stage {
  min-height: 100vh;
  margin: 0;
  background: #ff4d1f;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
}

.head {
  position: sticky;
  top: 0;
  height: 56px;
  display: grid;
  place-items: center;
  background: #17141a;
  overflow: hidden;
}
.head__label {
  grid-area: 1/1;
  color: #fff7e6;
  font-weight: 800;
  font-size: 20px;
  line-height: 1;
  font-family: inherit;
  letter-spacing: 0.06em;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 220ms ease-out, transform 220ms ease-out;
}
.head__label.is-current {
  opacity: 1;
  transform: translateY(0);
}
.head__label--a.is-current ~ .head__label--b {
  opacity: 0;
}

.head__label--a {
  opacity: 1;
  transform: translateY(0);
}

.head.is-demo .head__label--a {
  animation: label-a-loop 2s ease-out infinite;
}

.head.is-demo .head__label--b {
  animation: label-b-loop 2s ease-out infinite;
}

@keyframes label-a-loop {
  0%, 20% {
    opacity: 1;
    transform: translateY(0);
  }
  45%, 75% {
    opacity: 0;
    transform: translateY(-8px);
  }
  95%, 100% {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes label-b-loop {
  0%, 20% {
    opacity: 0;
    transform: translateY(8px);
  }
  45%, 75% {
    opacity: 1;
    transform: translateY(0);
  }
  95%, 100% {
    opacity: 0;
    transform: translateY(8px);
  }
}
.list {
  padding: clamp(4px, 3vh, 16px) 24px 0;
}

.list__sentinel {
  height: 1px;
  margin: 0;
}

.list__row {
  margin: 0 0 clamp(3px, 2vh, 12px);
  padding: clamp(3px, 2vh, 10px) 14px;
  border-radius: 12px;
  background: rgba(23, 20, 26, 0.06);
  color: #17141a;
  font-weight: 600;
  font-size: 12px;
  line-height: 1.1;
  font-family: inherit;
}

@media (prefers-reduced-motion: reduce) {
  .head__label {
    transition: none;
  }
  .head.is-demo .head__label--a, .head.is-demo .head__label--b {
    animation: none !important;
  }
}