07インクの塊へ反転する引用

<main class="stage">
  <figure class="qi is-demo" aria-label="インクの塊へ反転する引用">
    <blockquote class="qi__body">
      <span class="qi__l1">昨日の画面を直すのではなく、</span>
      <span class="qi__l2">明日の画面をもう少し上手く作る。</span>
    </blockquote>
  </figure>
</main>

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

// 포트폴리오 선언문용 인용구 — 잉크색 블록이 clip-path inset 으로 좌에서 우로 닦이며 나타나고,
// 그 위의 흰 문장이 steps(1, end) 컷으로 한 번에 뒤집힌다(잉크 배경 위 흰 글자 — 대비 18.24:1).
// 266-09 함정: steps 타이밍과 clip-path 를 한 keyframes 에 섞으면 보간이 죽는다 — 블록(ease 위프)과
// 문장(steps 컷)을 애니메이션 둘로 분리했다. 복귀: 문장 컷 → 블록 위프로 우에서 좌로 닦아 나감(입장 16% vs 퇴장 18%).
$duration: $dur-loop;
$easing: $ease-out;
$color: $subject-ink;

@include stage($stage-orange);

.qi {
  box-sizing: border-box;
  width: min(320px, 92vw);
  margin: 0;
  padding: $sp-5 $sp-6;
  border-radius: $r-card;
  background: $color;
  color: $stage-paper;
  font-family: inherit;
}
.qi * { box-sizing: border-box; }

.qi__body {
  margin: 0;
  display: grid;
  gap: $sp-2;
}
.qi__l1,
.qi__l2 {
  display: block;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.6;
  color: inherit;
}

// ── 미리보기 루프 ─────────────────
.qi.is-demo {
  animation-name: qiWipe;
  animation-duration: $duration;
  animation-timing-function: $easing;
  animation-iteration-count: infinite;
}
.qi.is-demo .qi__l1,
.qi.is-demo .qi__l2 {
  animation-name: qiCut1;
  animation-duration: $duration;
  animation-timing-function: steps(1, end);
  animation-iteration-count: infinite;
}
.qi.is-demo .qi__l2 { animation-name: qiCut2; }

// 잉크 블록: 0~16% 좌→우 위프로 닦여 나타남(빠르게 — 문장 컷과 겹치는 프레임이 최대 변화)
@keyframes qiWipe {
  0%        { clip-path: inset(0 100% 0 0 round 16px); }
  16%, 74%  { clip-path: inset(0 0 0 0 round 16px); }
  92%, 100% { clip-path: inset(0 100% 0 0 round 16px); }
}
// 문장 1: 블록이 다 찬 직후 한 프레임 컷
@keyframes qiCut1 {
  0%, 17%   { opacity: 0; }
  21%, 70%  { opacity: 1; }
  74%, 100% { opacity: 0; }
}
// 문장 2: 한 프레임 뒤
@keyframes qiCut2 {
  0%, 19%   { opacity: 0; }
  23%, 68%  { opacity: 1; }
  72%, 100% { opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .qi.is-demo,
  .qi.is-demo .qi__l1,
  .qi.is-demo .qi__l2 {
    animation: none !important;
  }
}

@media (max-width: 340px) {
  .qi { padding: $sp-4 $sp-5; }
  .qi__l1, .qi__l2 { font-size: 13px; }
}

html, body {
  margin: 0;
  overflow: hidden;
}

.stage {
  box-sizing: border-box;
  min-height: 100vh;
  display: grid;
  place-items: center;
  margin: 0;
  background: #ff4d1f;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  padding: clamp(8px, 4vw, 24px);
}

.qi {
  box-sizing: border-box;
  width: min(320px, 92vw);
  margin: 0;
  padding: 20px 24px;
  border-radius: 16px;
  background: #17141a;
  color: #ffffff;
  font-family: inherit;
}

.qi * {
  box-sizing: border-box;
}

.qi__body {
  margin: 0;
  display: grid;
  gap: 8px;
}

.qi__l1,
.qi__l2 {
  display: block;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.6;
  color: inherit;
}

.qi.is-demo {
  animation-name: qiWipe;
  animation-duration: 2s;
  animation-timing-function: ease-out;
  animation-iteration-count: infinite;
}

.qi.is-demo .qi__l1,
.qi.is-demo .qi__l2 {
  animation-name: qiCut1;
  animation-duration: 2s;
  animation-timing-function: steps(1, end);
  animation-iteration-count: infinite;
}

.qi.is-demo .qi__l2 {
  animation-name: qiCut2;
}

@keyframes qiWipe {
  0% {
    clip-path: inset(0 100% 0 0 round 16px);
  }
  16%, 74% {
    clip-path: inset(0 0 0 0 round 16px);
  }
  92%, 100% {
    clip-path: inset(0 100% 0 0 round 16px);
  }
}
@keyframes qiCut1 {
  0%, 17% {
    opacity: 0;
  }
  21%, 70% {
    opacity: 1;
  }
  74%, 100% {
    opacity: 0;
  }
}
@keyframes qiCut2 {
  0%, 19% {
    opacity: 0;
  }
  23%, 68% {
    opacity: 1;
  }
  72%, 100% {
    opacity: 0;
  }
}
@media (prefers-reduced-motion: reduce) {
  .qi.is-demo,
  .qi.is-demo .qi__l1,
  .qi.is-demo .qi__l2 {
    animation: none !important;
  }
}
@media (max-width: 340px) {
  .qi {
    padding: 16px 20px;
  }
  .qi__l1, .qi__l2 {
    font-size: 13px;
  }
}

// QuoteInkInvert — vanilla 판(run/282/demo/07-quote-ink-invert) 의 React 포트.
import { useState } from "react";
import type { CSSProperties } from "react";
import styles from "./QuoteInkInvert.module.scss";

export type QuoteInkInvertProps = {
  line1?: string;
  line2?: string;
  groupLabel?: string;
  demo?: boolean;
  duration?: number;
  easing?: string;
  color?: string;
};

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

export default function QuoteInkInvert({
  line1 = "나는 어제의 화면을 고치지 않고,",
  line2 = "내일의 화면을 더 잘 만든다.",
  groupLabel = "잉크 블록으로 뒤집히는 인용구",
  demo = true,
  duration = 2000,
  easing = "ease-out",
  color = "#17141a",
}: QuoteInkInvertProps) {
  const [live, setLive] = useState(demo);
  const vars: Vars = { "--duration": `${duration}ms`, "--easing": easing, "--color": color };

  function onEnter() {
    setLive(false);
  }

  const cls = [styles.qi, live ? styles.isDemo : ""].filter(Boolean).join(" ");
  return (
    <figure className={cls} style={vars} aria-label={groupLabel} onMouseEnter={onEnter}>
      <blockquote className={styles.body}>
        <span className={styles.l1}>{line1}</span>
        <span className={styles.l2}>{line2}</span>
      </blockquote>
    </figure>
  );
}