01Left-to-right wipe

<main class="stage">
  <div class="wr-frame wr-focal is-demo">
    <div class="wr-photo"></div>
    <div class="wr-cover"></div>
  </div>
</main>

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

// ── 변수 3개 ──────────────────────────────────────────
$duration: $dur-enter;
$easing: $ease-out;
$color: $subject-blue;

@include stage($stage-ink);

.wr-frame {
  position: relative;
  width: min(260px, 78vw);
  aspect-ratio: 8 / 5;
  border-radius: $r-card;
  overflow: hidden;
  box-shadow: $shadow-raised;
}

.wr-photo {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(120px circle at 72% 28%, rgba(255, 255, 255, .55), transparent 60%),
    linear-gradient(150deg, $color, $subject-ink);
}

.wr-cover {
  position: absolute;
  inset: 0;
  background: $subject-cream;
  transform-origin: 100% 50%; // 규칙8: 오른쪽으로 걷힘
  transform: scaleX(1);
}

// 실사용: 진짜 마우스 호버 — 오른쪽 끝을 축으로 scaleX(0) 까지 줄어들며 왼쪽부터 드러난다
.wr-cover { transition: transform $duration $easing; }
.wr-focal:hover .wr-cover { transform: scaleX(0); }

// 데모 루프: 같은 scaleX 경로를 keyframes 로 무한 재생 (캡처용)
@keyframes wr-wipe {
  0%   { transform: scaleX(1); }
  8%   { transform: scaleX(1); }
  45%  { transform: scaleX(0); }
  60%  { transform: scaleX(0); }
  95%  { transform: scaleX(1); }
  100% { transform: scaleX(1); }
}
.wr-frame.is-demo .wr-cover { animation: wr-wipe $dur-loop $easing infinite; }

@media (prefers-reduced-motion: reduce) {
  .wr-focal:hover .wr-cover,
  .wr-frame.is-demo .wr-cover {
    animation: none !important;
    transition: none !important;
    transform: scaleX(0) !important; // 사진이 늘 보이는 상태로 고정 — 움직임 없이도 내용은 남는다
  }
}

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);
}

.wr-frame {
  position: relative;
  width: min(260px, 78vw);
  aspect-ratio: 8/5;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 14px 24px rgba(23, 20, 26, 0.32);
}

.wr-photo {
  position: absolute;
  inset: 0;
  background: radial-gradient(120px circle at 72% 28%, rgba(255, 255, 255, 0.55), transparent 60%), linear-gradient(150deg, #2f6df6, #17141a);
}

.wr-cover {
  position: absolute;
  inset: 0;
  background: #fff7e6;
  transform-origin: 100% 50%;
  transform: scaleX(1);
}

.wr-cover {
  transition: transform 600ms ease-out;
}

.wr-focal:hover .wr-cover {
  transform: scaleX(0);
}

@keyframes wr-wipe {
  0% {
    transform: scaleX(1);
  }
  8% {
    transform: scaleX(1);
  }
  45% {
    transform: scaleX(0);
  }
  60% {
    transform: scaleX(0);
  }
  95% {
    transform: scaleX(1);
  }
  100% {
    transform: scaleX(1);
  }
}
.wr-frame.is-demo .wr-cover {
  animation: wr-wipe 2s ease-out infinite;
}

@media (prefers-reduced-motion: reduce) {
  .wr-focal:hover .wr-cover,
  .wr-frame.is-demo .wr-cover {
    animation: none !important;
    transition: none !important;
    transform: scaleX(0) !important;
  }
}

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

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

export interface WipeLeftRightProps {
  duration?: string;
  easing?: string;
  color?: string;
}

export default function WipeLeftRight({
  duration = "600ms",
  easing = "ease-out",
  color = "#2f6df6",
}: WipeLeftRightProps) {
  const style: Vars = {
    "--duration": duration,
    "--easing": easing,
    "--color": color,
  };
  return (
    <div className={styles.frame} style={style}>
      <div className={styles.photo} />
      <div className={styles.cover} />
    </div>
  );
}