07Rotating stage

<main class="stage">
  <div class="turntable">
    <div class="turntable__floor"></div>
    <div class="turntable__object is-demo">
      <div class="turntable__face turntable__face--front">New arrival</div>
      <div class="turntable__face turntable__face--back"></div>
    </div>
  </div>
</main>

@use "../../../../site/static/demo-tokens" as *;

// ── 변수 3개 ──────────────────────────────
$duration: 5s;                                          // 한 바퀴 도는 시간 — 제품 회전은 느릴수록 고급스럽다
$easing: linear;
$color: $subject-blue-deep;                             // 오브젝트 색 (크림 글자가 얹히므로 진한 파랑)

@include stage($stage-paper);

.turntable {
  position: relative;
  width: 130px;
  height: 160px;
  perspective: 700px;
}
// 바닥 원반은 고정. transform-style 없이도 perspective 안에서 타원으로 눌려 입체 바닥처럼 보인다
.turntable__floor {
  position: absolute;
  left: 50%;
  bottom: 6px;
  width: 120px;
  height: 28px;
  border-radius: 50%;
  background: rgba($subject-ink, .1);
  transform: translateX(-50%) rotateX(70deg);
  transform-style: preserve-3d;
}
.turntable__object {
  position: absolute;
  inset: 12px 25px 34px;
  transform-style: preserve-3d;
  animation: turn $duration $easing infinite;
}
.turntable__face {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  border-radius: $r-control;
  color: $subject-cream;
  font-weight: 700;
  font-size: 13px;
  line-height: 1.2;
  font-family: inherit;
  text-align: center;
  box-shadow: $shadow-press;
  backface-visibility: hidden;                            // 뒤로 돈 면의 글자가 비치지 않게
}
.turntable__face--front { background: $color; }
.turntable__face--back  { background: darken($color, 16%); transform: rotateY(180deg); }

@keyframes turn {
  from { transform: rotateY(0deg); }
  to   { transform: rotateY(360deg); }
}

// ── 접근성: 움직임 줄이기 설정이면 정면에서 고정 ────────────
@media (prefers-reduced-motion: reduce) {
  .turntable__object { animation: none; transform: rotateY(-20deg); }
}

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);
}

.turntable {
  position: relative;
  width: 130px;
  height: 160px;
  perspective: 700px;
}

.turntable__floor {
  position: absolute;
  left: 50%;
  bottom: 6px;
  width: 120px;
  height: 28px;
  border-radius: 50%;
  background: rgba(23, 20, 26, 0.1);
  transform: translateX(-50%) rotateX(70deg);
  transform-style: preserve-3d;
}

.turntable__object {
  position: absolute;
  inset: 12px 25px 34px;
  transform-style: preserve-3d;
  animation: turn 5s linear infinite;
}

.turntable__face {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  border-radius: 12px;
  color: #fff7e6;
  font-weight: 700;
  font-size: 13px;
  line-height: 1.2;
  font-family: inherit;
  text-align: center;
  box-shadow: 0 6px 12px rgba(23, 20, 26, 0.32);
  backface-visibility: hidden;
}

.turntable__face--front {
  background: #0a4fe8;
}

.turntable__face--back {
  background: rgb(2.5992545779%, 20.5341111651%, 60.3027062064%);
  transform: rotateY(180deg);
}

@keyframes turn {
  from {
    transform: rotateY(0deg);
  }
  to {
    transform: rotateY(360deg);
  }
}
@media (prefers-reduced-motion: reduce) {
  .turntable__object {
    animation: none;
    transform: rotateY(-20deg);
  }
}

import type { CSSProperties } from "react";
import styles from "./RotateStage.module.scss";

export type RotateStageProps = {
  /** 한 바퀴 도는 시간 (기본 5000ms) — 느릴수록 고급스럽다 */
  duration?: number;
  easing?: string;
  /** 오브젝트 색 */
  color?: string;
  label?: string;
};

type Vars = CSSProperties & { "--duration"?: string; "--easing"?: string; "--color"?: string };

export default function RotateStage({
  duration = 5000,
  easing = "linear",
  color = "#0a4fe8",
  label = "신제품",
}: RotateStageProps) {
  const vars: Vars = { "--duration": `${duration}ms`, "--easing": easing, "--color": color };
  return (
    <div className={styles.turntable}>
      <div className={styles.floor} />
      <div className={styles.object} style={vars}>
        <div className={`${styles.face} ${styles.front}`}>{label}</div>
        <div className={`${styles.face} ${styles.back}`} />
      </div>
    </div>
  );
}