01Cut-paper hero

<main class="stage">
  <section class="heropaper">
    <span class="heropaper__scrap heropaper__scrap--coral" aria-hidden="true"></span>
    <span class="heropaper__scrap heropaper__scrap--butter" aria-hidden="true"></span>
    <span class="heropaper__scrap heropaper__scrap--leaf" aria-hidden="true"></span>
    <div class="heropaper__sheet">
      <span class="heropaper__badge" aria-hidden="true">
        <svg xmlns="http://www.w3.org/2000/svg" width="1em" height="1em" viewBox="0 0 256 256"><g fill="currentColor"><path d="M40.2 95.8a28 28 0 1 1 39.6 0a28 28 0 0 1-39.6 0m0 64.4a28 28 0 1 0 39.6 0a28 28 0 0 0-39.6 0" opacity=".2"/><path d="M157.73 113.13a8 8 0 0 1 2.09-11.13l67.66-46.3a8 8 0 0 1 9 13.21l-67.67 46.3a7.9 7.9 0 0 1-4.51 1.4a8 8 0 0 1-6.57-3.48m80.87 85.09a8 8 0 0 1-11.12 2.08L136 137.7l-42.51 29.08a36 36 0 1 1-9-13.19L121.83 128l-37.39-25.59a35.86 35.86 0 1 1 9-13.19l143 97.87a8 8 0 0 1 2.16 11.13M80 180a20 20 0 1 0-5.86 14.14A19.85 19.85 0 0 0 80 180m-5.86-89.87a20 20 0 1 0-28.28 0a19.85 19.85 0 0 0 28.28 0"/></g></svg>
      </span>
      <p class="heropaper__eyebrow">Cut &amp; paste</p>
      <h1 class="heropaper__title">A cut-and-paste screen</h1>
      <p class="heropaper__desc">A landing page, a few sheets of paper</p>
      <button class="heropaper__cta" type="button">Get started</button>
    </div>
  </section>
</main>

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

// 페이퍼컷 팔레트 — 따뜻한 오프화이트 두 장 + 오려낸 색종이 다섯 색.
// 대비 실측(WCAG 상대휘도 직접 계산): ink/paper 14.34:1 · stone/paper 7.23:1 · sheet/coral 4.93:1
$paper-base:   #fbf6ec;
$paper-sheet:  #ffffff;
$paper-ink:    #2a2320;
$paper-stone:  #5c5048;
$paper-coral:  #b97b71;
$paper-sky:    #6a8db5;
$paper-leaf:   #2b7d5a;
$paper-butter: #d6c9ab;
$paper-edge:   #e7dccb;

$duration: $dur-loop;   // 종이 한 장이 들렸다 내려앉는 한 주기
$easing: $ease-out;     // 종이는 튀지 않는다. 되돌아올 때도 같은 속도
$color: $paper-coral;   // 오려낸 색종이 조각의 대표색

@include stage($paper-base);

.heropaper {
  position: relative;
  width: clamp(216px, 74vw, 328px);
  isolation: isolate;
}

// 뒤에 깔리는 색종이 조각 — 각자 다른 각도로 오려 붙인 것처럼
.heropaper__scrap {
  position: absolute;
  z-index: 0;
  animation: scrapDrift $duration $easing infinite;
}
.heropaper__scrap--coral {
  left: -20px;
  top: 4px;
  width: 76px;
  height: 76px;
  border-radius: 50%;
  background: $paper-coral;
}
.heropaper__scrap--butter {
  right: -16px;
  top: -20px;
  width: 92px;
  height: 48px;
  border-radius: $r-card;
  background: $paper-butter;
  transform: rotate(-8deg);
  animation-delay: -.66s;
}
.heropaper__scrap--leaf {
  right: 8px;
  bottom: -24px;
  width: 64px;
  height: 40px;
  border-radius: $r-pill;
  background: $paper-leaf;
  animation-delay: -1.33s;
}

// 맨 위 흰 종이 — 들어올려지면 그림자가 같이 자란다
.heropaper__sheet {
  position: relative;
  z-index: 1;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: $sp-2;
  padding: $sp-5;
  border-radius: $r-card;
  background: $paper-sheet;
  box-shadow: 0 10px 18px rgba($paper-ink, .14);
  animation: sheetLift $duration $easing infinite;
}
.heropaper__badge {
  position: absolute;
  top: -14px;
  right: $sp-4;
  width: 34px;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: $paper-sheet;
  color: $paper-coral;
  font-size: 18px;
  box-shadow: 0 4px 8px rgba($paper-ink, .18);
}
.heropaper__eyebrow {
  margin: 0;
  color: $paper-coral;
  font-weight: 700; font-size: clamp(10px, 2.6vw, 12px); line-height: 1;
  font-family: inherit;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.heropaper__title {
  margin: 0;
  color: $paper-ink;
  font-weight: 800; font-size: clamp(18px, 4.6vw, 26px); line-height: 1.2;
  font-family: inherit;
}
.heropaper__desc {
  margin: 0;
  color: $paper-stone;
  font-weight: 500; font-size: clamp(12px, 2.8vw, 14px); line-height: 1.4;
  font-family: inherit;
}
.heropaper__cta {
  margin-top: $sp-1;
  border: 0;
  border-radius: $r-control;
  background: $paper-coral;
  color: $paper-sheet;
  padding: $sp-2 $sp-5;
  font-weight: 700; font-size: clamp(12px, 2.8vw, 14px); line-height: 1;
  font-family: inherit;
  box-shadow: 0 4px 0 rgba($paper-ink, .2);
}
.heropaper__cta:focus-visible {
  outline: 3px solid $paper-sky;
  outline-offset: 2px;
}

// 데모: 흰 종이가 올라가는 동안 뒤 색종이는 반대 위상으로 내려간다 — 겹친 층이 분리되는 게 보인다
@keyframes sheetLift {
  0%, 100% { transform: translateY(0); box-shadow: 0 10px 18px rgba($paper-ink, .14); }
  50%      { transform: translateY(-12px); box-shadow: 0 22px 28px rgba($paper-ink, .1); }
}
@keyframes scrapDrift {
  0%, 100% { transform: translateY(0) rotate(-2deg); }
  50%      { transform: translateY(8px) rotate(3deg); }
}

@media (max-width: 340px), (max-height: 220px) {
  .heropaper { width: 200px; }
  .heropaper__sheet { padding: $sp-3 $sp-4; gap: $sp-1; }
  .heropaper__eyebrow { display: none; }
  .heropaper__title { font-size: 16px; line-height: 1.15; }
  .heropaper__desc { display: none; }
  .heropaper__cta { padding: $sp-1 $sp-4; margin-top: 0; }
  .heropaper__badge { width: 24px; font-size: 13px; top: -10px; right: $sp-2; }
  .heropaper__scrap--coral { width: 48px; height: 48px; left: -12px; }
  .heropaper__scrap--butter { width: 56px; height: 32px; right: -8px; top: -12px; }
  .heropaper__scrap--leaf { width: 44px; height: 26px; bottom: -14px; }
}

@media (prefers-reduced-motion: reduce) {
  .heropaper__sheet, .heropaper__scrap { animation: none !important; transform: none; }
}

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

.stage {
  box-sizing: border-box;
  min-height: 100vh;
  display: grid;
  place-items: center;
  margin: 0;
  background: #fbf6ec;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  padding: clamp(8px, 4vw, 24px);
}

.heropaper {
  position: relative;
  width: clamp(216px, 74vw, 328px);
  isolation: isolate;
}

.heropaper__scrap {
  position: absolute;
  z-index: 0;
  animation: scrapDrift 2s ease-out infinite;
}

.heropaper__scrap--coral {
  left: -20px;
  top: 4px;
  width: 76px;
  height: 76px;
  border-radius: 50%;
  background: #b97b71;
}

.heropaper__scrap--butter {
  right: -16px;
  top: -20px;
  width: 92px;
  height: 48px;
  border-radius: 16px;
  background: #d6c9ab;
  transform: rotate(-8deg);
  animation-delay: -0.66s;
}

.heropaper__scrap--leaf {
  right: 8px;
  bottom: -24px;
  width: 64px;
  height: 40px;
  border-radius: 999px;
  background: #2b7d5a;
  animation-delay: -1.33s;
}

.heropaper__sheet {
  position: relative;
  z-index: 1;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  padding: 20px;
  border-radius: 16px;
  background: #ffffff;
  box-shadow: 0 10px 18px rgba(42, 35, 32, 0.14);
  animation: sheetLift 2s ease-out infinite;
}

.heropaper__badge {
  position: absolute;
  top: -14px;
  right: 16px;
  width: 34px;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: #ffffff;
  color: #b97b71;
  font-size: 18px;
  box-shadow: 0 4px 8px rgba(42, 35, 32, 0.18);
}

.heropaper__eyebrow {
  margin: 0;
  color: #b97b71;
  font-weight: 700;
  font-size: clamp(10px, 2.6vw, 12px);
  line-height: 1;
  font-family: inherit;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.heropaper__title {
  margin: 0;
  color: #2a2320;
  font-weight: 800;
  font-size: clamp(18px, 4.6vw, 26px);
  line-height: 1.2;
  font-family: inherit;
}

.heropaper__desc {
  margin: 0;
  color: #5c5048;
  font-weight: 500;
  font-size: clamp(12px, 2.8vw, 14px);
  line-height: 1.4;
  font-family: inherit;
}

.heropaper__cta {
  margin-top: 4px;
  border: 0;
  border-radius: 12px;
  background: #b97b71;
  color: #ffffff;
  padding: 8px 20px;
  font-weight: 700;
  font-size: clamp(12px, 2.8vw, 14px);
  line-height: 1;
  font-family: inherit;
  box-shadow: 0 4px 0 rgba(42, 35, 32, 0.2);
}

.heropaper__cta:focus-visible {
  outline: 3px solid #6a8db5;
  outline-offset: 2px;
}

@keyframes sheetLift {
  0%, 100% {
    transform: translateY(0);
    box-shadow: 0 10px 18px rgba(42, 35, 32, 0.14);
  }
  50% {
    transform: translateY(-12px);
    box-shadow: 0 22px 28px rgba(42, 35, 32, 0.1);
  }
}
@keyframes scrapDrift {
  0%, 100% {
    transform: translateY(0) rotate(-2deg);
  }
  50% {
    transform: translateY(8px) rotate(3deg);
  }
}
@media (max-width: 340px), (max-height: 220px) {
  .heropaper {
    width: 200px;
  }
  .heropaper__sheet {
    padding: 12px 16px;
    gap: 4px;
  }
  .heropaper__eyebrow {
    display: none;
  }
  .heropaper__title {
    font-size: 16px;
    line-height: 1.15;
  }
  .heropaper__desc {
    display: none;
  }
  .heropaper__cta {
    padding: 4px 16px;
    margin-top: 0;
  }
  .heropaper__badge {
    width: 24px;
    font-size: 13px;
    top: -10px;
    right: 8px;
  }
  .heropaper__scrap--coral {
    width: 48px;
    height: 48px;
    left: -12px;
  }
  .heropaper__scrap--butter {
    width: 56px;
    height: 32px;
    right: -8px;
    top: -12px;
  }
  .heropaper__scrap--leaf {
    width: 44px;
    height: 26px;
    bottom: -14px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .heropaper__sheet, .heropaper__scrap {
    animation: none !important;
    transform: none;
  }
}

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

export type HeroPaperProps = {
  eyebrow?: string;
  title?: string;
  desc?: string;
  cta?: string;
  /** 한 주기(기본 2000ms) */
  duration?: number;
  easing?: string;
  color?: string;
};

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

export default function HeroPaper({
  eyebrow = "Cut & paste",
  title = "오려 붙인 화면",
  desc = "색종이 몇 장이면 되는 랜딩",
  cta = "바로 시작",
  duration = 2000,
  easing = "ease-out",
  color = "#cc3d26",
}: HeroPaperProps) {
  const vars: Vars = { "--duration": `${duration}ms`, "--easing": easing, "--color": color };

  return (
    <section className={styles.heropaper} style={vars}>
      <span className={`${styles.scrap} ${styles.scrapCoral}`} aria-hidden="true" />
      <span className={`${styles.scrap} ${styles.scrapButter}`} aria-hidden="true" />
      <span className={`${styles.scrap} ${styles.scrapLeaf}`} aria-hidden="true" />
      <div className={styles.sheet}>
        <span className={styles.badge} aria-hidden="true">
          <svg xmlns="http://www.w3.org/2000/svg" width="1em" height="1em" viewBox="0 0 256 256"><g fill="currentColor"><path d="M40.2 95.8a28 28 0 1 1 39.6 0a28 28 0 0 1-39.6 0m0 64.4a28 28 0 1 0 39.6 0a28 28 0 0 0-39.6 0" opacity=".2"/><path d="M157.73 113.13a8 8 0 0 1 2.09-11.13l67.66-46.3a8 8 0 0 1 9 13.21l-67.67 46.3a7.9 7.9 0 0 1-4.51 1.4a8 8 0 0 1-6.57-3.48m80.87 85.09a8 8 0 0 1-11.12 2.08L136 137.7l-42.51 29.08a36 36 0 1 1-9-13.19L121.83 128l-37.39-25.59a35.86 35.86 0 1 1 9-13.19l143 97.87a8 8 0 0 1 2.16 11.13M80 180a20 20 0 1 0-5.86 14.14A19.85 19.85 0 0 0 80 180m-5.86-89.87a20 20 0 1 0-28.28 0a19.85 19.85 0 0 0 28.28 0"/></g></svg>
        </span>
        <p className={styles.eyebrow}>{eyebrow}</p>
        <h1 className={styles.title}>{title}</h1>
        <p className={styles.desc}>{desc}</p>
        <button type="button" className={styles.cta}>{cta}</button>
      </div>
    </section>
  );
}