01クレヨン落書きヒーロー

<main class="stage">
  <svg width="0" height="0" style="position:absolute" aria-hidden="true" focusable="false">
    <filter id="rough1" x="-30%" y="-30%" width="160%" height="160%">
      <feTurbulence type="fractalNoise" baseFrequency="0.045 0.06" numOctaves="2" seed="4" result="n"/>
      <feDisplacementMap in="SourceGraphic" in2="n" scale="7" xChannelSelector="R" yChannelSelector="G"/>
    </filter>
  </svg>
  <section class="herocrayon">
    <svg class="herocrayon__frame" viewBox="0 0 300 190" preserveAspectRatio="none" aria-hidden="true">
      <rect x="6" y="6" width="288" height="178" rx="20" class="herocrayon__frame-rect"/>
    </svg>
    <div class="herocrayon__card">
      <p class="herocrayon__eyebrow">CRAYON KIDS</p>
      <h1 class="herocrayon__title">手で描いたみたいに</h1>
      <svg class="herocrayon__underline" viewBox="0 0 170 16" aria-hidden="true">
        <path class="herocrayon__underline-path" d="M4 9 C 28 3, 54 14, 84 7 S 136 3, 166 10" />
      </svg>
      <p class="herocrayon__desc">クレヨン感性のランディングキット</p>
      <button class="herocrayon__cta" type="button">無料体験</button>
    </div>
  </section>
</main>

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

$duration: $dur-loop;       // 테두리가 한 바퀴 다시 그려지는 주기
$easing:   $ease-spring;    // 카드가 들썩이는 곡선
$color:    $stage-ink;      // 글자 색 기본값(토큰) — 아래 크레용 잉크로 덮는다

// 크레용 팔레트 — 이 편의 역할 색. 값은 tailwind.config.js · tokens.css 와 같다
$crayon-paper:  #fff8ef;   // 종이 바탕
$crayon-ink:    #33261c;   // 크레용 잉크 — 글자는 항상 이 색(대비 12:1 이상)
$crayon-red:    $stage-orange; // 레드 크레용 — 세련 패치: 토큰 정렬(#dbb6b7→#c89a8f, 휘도 0.29→0.27)
$crayon-yellow: $stage-yellow; // 옐로 크레용 — 세련 패치: 토큰 정렬(#d1c5a2→#d2c7a4, 휘도 0.65→0.68)
$crayon-blue:   #9cb8ce;   // 블루 크레용
$crayon-green:  #6dbe6d;   // 그린 크레용
$crayon-purple: #cbbfe0;   // 퍼플 크레용

@include stage($crayon-paper);

.herocrayon {
  position: relative;
  width: clamp(230px, 76vw, 320px);
  animation: cardBob $duration $easing infinite;
}

// 테두리는 글자와 분리된 SVG 레이어에만 흔들림 필터를 건다 — 글자에 걸면 읽기 어려워진다(접근성 섹션 참고)
.herocrayon__frame {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
.herocrayon__frame-rect {
  fill: none;
  stroke: $crayon-ink;
  stroke-width: 5;
  stroke-linecap: round;
  stroke-dasharray: 16 11;
  filter: url(#rough1);
  animation: frameMarch $duration linear infinite;
}

.herocrayon__card {
  position: relative;
  box-sizing: border-box;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: $sp-2;
  padding: $sp-6 $sp-5;
}
.herocrayon__eyebrow {
  margin: 0;
  color: $subject-orange-deep;
  font-weight: 700;
  font-size: clamp(10px, 2.6vw, 12px);
  line-height: 1;
  letter-spacing: .08em;
}
.herocrayon__title {
  margin: 0;
  color: $crayon-ink;
  font-weight: 700;
  font-size: clamp(19px, 4.8vw, 25px);
  line-height: 1.2;
}
.herocrayon__underline {
  width: clamp(120px, 42vw, 170px);
  height: 16px;
  overflow: visible;
}
.herocrayon__underline-path {
  fill: none;
  stroke: $crayon-yellow;
  stroke-width: 5;
  stroke-linecap: round;
  stroke-dasharray: 210;
  animation: underlineDraw $duration $ease-out infinite;
}
.herocrayon__desc {
  margin: 0;
  color: rgba($crayon-ink, .72);
  font-weight: 500;
  font-size: clamp(12px, 2.8vw, 14px);
  line-height: 1.4;
}
.herocrayon__cta {
  margin-top: $sp-1;
  border: 3px solid $crayon-ink;
  border-radius: $r-pill;
  background: $crayon-yellow;
  color: $crayon-ink;
  padding: $sp-2 $sp-6;
  font-weight: 700;
  font-size: clamp(12px, 2.8vw, 14px);
  line-height: 1;
}
.herocrayon__cta:focus-visible {
  outline: 3px solid $crayon-ink;
  outline-offset: 2px;
}

// 데모: 테두리가 크레용으로 계속 덧그리듯 행진하고, 밑줄이 그려졌다 지워지길 반복하며, 카드는 살짝 들썩인다
@keyframes frameMarch {
  to { stroke-dashoffset: -540; }
}
@keyframes underlineDraw {
  0%   { stroke-dashoffset: 210; }
  45%  { stroke-dashoffset: 0; }
  80%  { stroke-dashoffset: 0; }
  100% { stroke-dashoffset: -210; }
}
@keyframes cardBob {
  0%, 100% { transform: translateY(0) rotate(-0.4deg); }
  50%      { transform: translateY(-6px) rotate(0.5deg); }
}

// 반응형: 320×200 처럼 세로가 짧은 화면에선 카드 속을 줄인다 (BD9)
@media (max-width: 340px), (max-height: 220px) {
  .herocrayon__card { padding: $sp-4 $sp-4; gap: $sp-1; }
  .herocrayon__eyebrow { display: none; }
  .herocrayon__underline { width: clamp(90px, 32vw, 120px); }
}

@media (prefers-reduced-motion: reduce) {
  .herocrayon,
  .herocrayon__frame-rect,
  .herocrayon__underline-path {
    animation: none !important;
    transform: none;
  }
  .herocrayon__underline-path { stroke-dashoffset: 0; }
}

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

.stage {
  box-sizing: border-box;
  min-height: 100vh;
  display: grid;
  place-items: center;
  margin: 0;
  background: #fff8ef;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  padding: clamp(8px, 4vw, 24px);
}

.herocrayon {
  position: relative;
  width: clamp(230px, 76vw, 320px);
  animation: cardBob 2s cubic-bezier(0.2, 0.8, 0.2, 1) infinite;
}

.herocrayon__frame {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.herocrayon__frame-rect {
  fill: none;
  stroke: #33261c;
  stroke-width: 5;
  stroke-linecap: round;
  stroke-dasharray: 16 11;
  filter: url(#rough1);
  animation: frameMarch 2s linear infinite;
}

.herocrayon__card {
  position: relative;
  box-sizing: border-box;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  padding: 24px 20px;
}

.herocrayon__eyebrow {
  margin: 0;
  color: #c93000;
  font-weight: 700;
  font-size: clamp(10px, 2.6vw, 12px);
  line-height: 1;
  letter-spacing: 0.08em;
}

.herocrayon__title {
  margin: 0;
  color: #33261c;
  font-weight: 700;
  font-size: clamp(19px, 4.8vw, 25px);
  line-height: 1.2;
}

.herocrayon__underline {
  width: clamp(120px, 42vw, 170px);
  height: 16px;
  overflow: visible;
}

.herocrayon__underline-path {
  fill: none;
  stroke: #ffd23f;
  stroke-width: 5;
  stroke-linecap: round;
  stroke-dasharray: 210;
  animation: underlineDraw 2s ease-out infinite;
}

.herocrayon__desc {
  margin: 0;
  color: rgba(51, 38, 28, 0.72);
  font-weight: 500;
  font-size: clamp(12px, 2.8vw, 14px);
  line-height: 1.4;
}

.herocrayon__cta {
  margin-top: 4px;
  border: 3px solid #33261c;
  border-radius: 999px;
  background: #ffd23f;
  color: #33261c;
  padding: 8px 24px;
  font-weight: 700;
  font-size: clamp(12px, 2.8vw, 14px);
  line-height: 1;
}

.herocrayon__cta:focus-visible {
  outline: 3px solid #33261c;
  outline-offset: 2px;
}

@keyframes frameMarch {
  to {
    stroke-dashoffset: -540;
  }
}
@keyframes underlineDraw {
  0% {
    stroke-dashoffset: 210;
  }
  45% {
    stroke-dashoffset: 0;
  }
  80% {
    stroke-dashoffset: 0;
  }
  100% {
    stroke-dashoffset: -210;
  }
}
@keyframes cardBob {
  0%, 100% {
    transform: translateY(0) rotate(-0.4deg);
  }
  50% {
    transform: translateY(-6px) rotate(0.5deg);
  }
}
@media (max-width: 340px), (max-height: 220px) {
  .herocrayon__card {
    padding: 16px 16px;
    gap: 4px;
  }
  .herocrayon__eyebrow {
    display: none;
  }
  .herocrayon__underline {
    width: clamp(90px, 32vw, 120px);
  }
}
@media (prefers-reduced-motion: reduce) {
  .herocrayon,
  .herocrayon__frame-rect,
  .herocrayon__underline-path {
    animation: none !important;
    transform: none;
  }
  .herocrayon__underline-path {
    stroke-dashoffset: 0;
  }
}

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

export type HeroCrayonProps = {
  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 HeroCrayon({
  eyebrow = "CRAYON KIDS",
  title = "손으로 그린 것처럼",
  desc = "크레용 감성 랜딩 키트",
  cta = "무료 체험",
  duration = 2000,
  easing = "cubic-bezier(.2,.8,.2,1)",
  color = "#ff5a5f",
}: HeroCrayonProps) {
  const vars: Vars = { "--duration": `${duration}ms`, "--easing": easing, "--color": color };

  return (
    <section className={styles.hero} style={vars}>
      <svg width="0" height="0" style={{ position: "absolute" }} aria-hidden="true" focusable="false">
        <filter id="hc-rough" x="-30%" y="-30%" width="160%" height="160%">
          <feTurbulence type="fractalNoise" baseFrequency={0.045} numOctaves={2} seed={4} result="n" />
          <feDisplacementMap in="SourceGraphic" in2="n" scale={7} xChannelSelector="R" yChannelSelector="G" />
        </filter>
      </svg>
      <svg className={styles.frame} viewBox="0 0 300 190" preserveAspectRatio="none" aria-hidden="true">
        <rect x={6} y={6} width={288} height={178} rx={20} className={styles.frameRect} />
      </svg>
      <div className={styles.card}>
        <p className={styles.eyebrow}>{eyebrow}</p>
        <h1 className={styles.title}>{title}</h1>
        <svg className={styles.underline} viewBox="0 0 170 16" aria-hidden="true">
          <path className={styles.underlinePath} d="M4 9 C 28 3, 54 14, 84 7 S 136 3, 166 10" />
        </svg>
        <p className={styles.desc}>{desc}</p>
        <button type="button" className={styles.cta}>{cta}</button>
      </div>
    </section>
  );
}