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);
}

.hp {
  width: min(400px, 88vw);
  height: clamp(150px, 62vh, 224px);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 14px 24px rgba(23, 20, 26, 0.32);
}

.hp__scroller {
  height: 100%;
  overflow-y: auto;
  scroll-timeline: --hp-scroll block;
  scrollbar-width: none;
}
.hp__scroller::-webkit-scrollbar {
  display: none;
}

.hp__inner {
  height: 300%;
}

.hp__pin {
  position: sticky;
  top: 0;
  height: 33.3333333333%;
  overflow: hidden;
}

.hp__track {
  display: flex;
  height: 100%;
  width: 300%;
}

.hp__panel {
  flex: 0 0 33.3333%;
  height: 100%;
  display: grid;
  place-items: center;
  box-sizing: border-box;
}

.hp__panel--1 {
  background: linear-gradient(135deg, #2f6df6, #d6ddeb);
}

.hp__panel--2 {
  background: linear-gradient(135deg, #c2ae82, #ffd23f);
}

.hp__panel--3 {
  background: linear-gradient(135deg, #ff4d1f, #ebdbd6);
}

.hp__tag {
  padding: 4px 16px;
  border-radius: 999px;
  background: rgba(23, 20, 26, 0.45);
  color: #fff7e6;
  font: 700 14px/1.4 -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
}

@supports (animation-timeline: scroll()) {
  .hp__track:not(.is-demo) {
    animation: hp-slide linear both;
    animation-timeline: --hp-scroll;
  }
}
@supports not (animation-timeline: scroll()) {
  .hp__track:not(.is-demo) {
    transform: none;
  }
}
@keyframes hp-slide {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-66.6667%);
  }
}
.hp__track.is-demo {
  animation: hp-loop 2s cubic-bezier(0.2, 0.8, 0.2, 1) infinite;
}

@keyframes hp-loop {
  0%, 8% {
    transform: translateX(0);
  }
  33%, 41% {
    transform: translateX(-33.3333%);
  }
  66%, 74% {
    transform: translateX(-66.6667%);
  }
  100% {
    transform: translateX(0);
  }
}
@media (prefers-reduced-motion: reduce) {
  .hp__track.is-demo {
    animation: none !important;
  }
  .hp__scroller {
    scroll-behavior: auto;
  }
}