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);
}

.ir {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  width: min(100%, 280px);
}

.ir__btns {
  display: flex;
  gap: 8px;
}

.ir__btn {
  border: 0;
  border-radius: 999px;
  padding: 4px 16px;
  font-family: inherit;
  font-weight: 700;
  font-size: 11px;
  color: #17141a;
  background: #b9a0ff;
  cursor: pointer;
}

.ir__pane {
  width: 100%;
  height: 150px;
  overflow-y: auto;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.06);
}

.ir__spacer {
  height: 90px;
}

.ir__card {
  margin: 0 12px;
  padding: 16px;
  border-radius: 16px;
  background: #b9a0ff;
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 600ms cubic-bezier(0.2, 0.8, 0.2, 1), transform 600ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.ir__card--in {
  opacity: 1;
  transform: translateY(0);
}

.ir__title {
  margin: 0 0 4px;
  font-weight: 800;
  font-size: 12px;
  color: #17141a;
}

.ir__desc {
  margin: 0;
  font-weight: 600;
  font-size: 11px;
  color: rgba(23, 20, 26, 0.72);
}

@media (max-width: 340px) {
  .ir__pane {
    height: 130px;
  }
  .ir__spacer {
    height: 70px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .ir__card {
    transition: none !important;
  }
}