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);
}

.stage {
  position: relative;
}

.sss {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.sss__viewport {
  position: relative;
  width: 200px;
  height: 150px;
  overflow: hidden;
  border-radius: 16px;
  box-shadow: 0 14px 24px rgba(23, 20, 26, 0.32);
  touch-action: none;
  overscroll-behavior: contain;
  cursor: grab;
}

.sss__track {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  will-change: transform;
}

.sss__panel {
  width: 100%;
  height: 150px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 700;
  color: #17141a;
  box-sizing: border-box;
}
.sss__panel--1 {
  background: #4cd4a6;
}
.sss__panel--2 {
  background: #6ec8ff;
}
.sss__panel--3 {
  background: #b9a0ff;
}

.sss__hint {
  color: #17141a;
  font-size: 12px;
  text-align: center;
}

@media (max-width: 340px) {
  .sss {
    gap: 8px;
  }
  .sss__viewport {
    width: 152px;
    height: 86px;
  }
  .sss__panel {
    height: 86px;
    font-size: 13px;
  }
  .sss__hint {
    font-size: 11px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .sss__track {
    transition: none !important;
  }
}