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);
}

.grp-wrap {
  width: 220px;
  height: 168px;
  overflow: auto;
  border-radius: 16px;
  background: #ffffff;
  box-shadow: 0 14px 24px rgba(23, 20, 26, 0.32);
}

.grp-wrap:focus-visible {
  outline: 2px solid #2f6df6;
  outline-offset: 2px;
}

.grp-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.grp-group {
  margin: 0;
  padding: 0;
}

.grp-group__header {
  position: sticky;
  top: 0;
  z-index: 1;
  padding: 8px 16px;
  font-weight: 700;
  font-size: 13px;
  color: #17141a;
  background: #ff9ebb;
}

.grp-group:nth-of-type(2) .grp-group__header {
  background: #4cd4a6;
}

.grp-group:nth-of-type(3) .grp-group__header {
  background: #b9a0ff;
}

.grp-group__rows {
  list-style: none;
  margin: 0;
  padding: 0;
}

.grp-group__rows li {
  padding: 8px 16px;
  font-size: 13px;
  color: #17141a;
  border-bottom: 1px solid rgba(23, 20, 26, 0.06);
}

@media (prefers-reduced-motion: reduce) {
  .grp-wrap {
    scroll-behavior: auto;
  }
}