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

.stage {
  box-sizing: border-box;
  min-height: 100vh;
  display: grid;
  place-items: center;
  margin: 0;
  background: #ffffff;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  padding: clamp(8px, 4vw, 24px);
}

.wall-viewport {
  width: min(280px, 84vw);
  overflow: hidden;
  border-radius: 16px;
  box-shadow: 0 6px 12px rgba(23, 20, 26, 0.32);
}

.wall-track {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  width: max-content;
}

.wall-tile {
  flex: 0 0 auto;
  width: 56px;
  height: 42px;
  margin-right: 8px;
  border-radius: 8px;
}

.wall-tile--pink {
  background: linear-gradient(155deg, #ff9ebb 0%, #fff7e6 100%);
}

.wall-tile--mint {
  background: linear-gradient(155deg, #4cd4a6 0%, #fff7e6 100%);
}

.wall-tile--lilac {
  background: linear-gradient(155deg, #b9a0ff 0%, #fff7e6 100%);
}

.wall-tile--sky {
  background: linear-gradient(155deg, #6ec8ff 0%, #fff7e6 100%);
}

.wall-tile--pink2 {
  background: linear-gradient(205deg, #fff7e6 0%, #ff9ebb 100%);
}

.wall-track.is-demo {
  animation: wall-loop 2s linear infinite;
}

@keyframes wall-loop {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}
@media (prefers-reduced-motion: reduce) {
  .wall-track.is-demo {
    animation: none;
  }
}