01Clay-shape hero

<main class="stage">
  <section class="hero">
    <div class="hero__blob hero__blob--a is-demo" aria-hidden="true"></div>
    <div class="hero__blob hero__blob--b is-demo" aria-hidden="true"></div>
    <div class="hero__card is-demo">
      <p class="hero__eyebrow">Claymolt</p>
      <h1 class="hero__title">Soft start</h1>
      <p class="hero__desc">Press it — it springs back</p>
      <button class="hero__cta" type="button">Start for free</button>
    </div>
  </section>
</main>

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

$duration: $dur-loop;       // 블롭이 한 바퀴 떠도는 시간
$easing: $ease-spring;      // 떠오르는 곡선
$color: $subject-blue;      // 강조 색

@include stage($stage-ink);

.hero {
  position: relative;
  width: clamp(240px, 82vw, 380px);
}
.hero__blob {
  position: absolute;
  width: clamp(110px, 42vw, 170px);
  aspect-ratio: 1;
  pointer-events: none;
}
.hero__blob--a {
  top: -14px;
  left: -14px;
  background: rgba($color, .35);
  border-radius: 42% 58% 63% 37% / 41% 44% 56% 59%;
  animation: blobA $duration $easing infinite;
}
.hero__blob--b {
  bottom: -16px;
  right: -12px;
  background: rgba($subject-cream, .3);
  border-radius: 58% 42% 39% 61% / 56% 63% 37% 44%;
  animation: blobB $duration $easing infinite;
  animation-delay: -1s;
}
.hero__card {
  position: relative;
  box-sizing: border-box;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: $sp-1;
  padding: $sp-3;
  border-radius: $r-card;
  background: $subject-cream;
  box-shadow: 8px 8px 16px rgba($stage-ink, .3), -8px -8px 16px rgba($stage-paper, .5);
  animation: cardRise $duration $easing infinite;
}
.hero__eyebrow {
  margin: 0;
  color: $subject-blue-deep;   // 밝은 면 위 파란 글자 — AA 4.5
  font-weight: 700; font-size: clamp(10px, 2.6vw, 12px); line-height: 1;
  letter-spacing: .04em;
  text-transform: uppercase;
}
.hero__title {
  margin: 0;
  color: $subject-ink;
  font-weight: 700; font-size: clamp(18px, 4.6vw, 24px); line-height: 1.2;
}
.hero__desc {
  margin: 0;
  color: rgba($subject-ink, .7);
  font-weight: 500; font-size: clamp(12px, 2.8vw, 14px); line-height: 1.4;
}
.hero__cta {
  margin-top: $sp-1;
  border: 0;
  border-radius: $r-pill;
  background: $subject-ink;
  color: $subject-cream;
  padding: $sp-1 $sp-5;
  font-weight: 600; font-size: clamp(12px, 2.8vw, 14px); line-height: 1;
  box-shadow: 4px 4px 8px rgba($stage-ink, .3);
}

// 데모: 블롭 두 개가 서로 반대 위상으로 떠돌고, 카드는 살짝 떠올랐다 가라앉는다 (WAAPI 시계가 잡을 수 있게 keyframes)
@keyframes blobA {
  0%, 100% { transform: translate(0, 0) rotate(0deg) scale(1); }
  50%      { transform: translate(4%, 6%) rotate(10deg) scale(1.08); }
}
@keyframes blobB {
  0%, 100% { transform: translate(0, 0) rotate(0deg) scale(1); }
  50%      { transform: translate(-5%, -4%) rotate(-8deg) scale(.93); }
}
@keyframes cardRise {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-6px); }
}

@media (prefers-reduced-motion: reduce) {
  .hero__blob, .hero__card {
    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: #17141a;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  padding: clamp(8px, 4vw, 24px);
}

.hero {
  position: relative;
  width: clamp(240px, 82vw, 380px);
}

.hero__blob {
  position: absolute;
  width: clamp(110px, 42vw, 170px);
  aspect-ratio: 1;
  pointer-events: none;
}

.hero__blob--a {
  top: -14px;
  left: -14px;
  background: rgba(47, 109, 246, 0.35);
  border-radius: 42% 58% 63% 37%/41% 44% 56% 59%;
  animation: blobA 2s cubic-bezier(0.2, 0.8, 0.2, 1) infinite;
}

.hero__blob--b {
  bottom: -16px;
  right: -12px;
  background: rgba(255, 247, 230, 0.3);
  border-radius: 58% 42% 39% 61%/56% 63% 37% 44%;
  animation: blobB 2s cubic-bezier(0.2, 0.8, 0.2, 1) infinite;
  animation-delay: -1s;
}

.hero__card {
  position: relative;
  box-sizing: border-box;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  padding: 12px;
  border-radius: 16px;
  background: #fff7e6;
  box-shadow: 8px 8px 16px rgba(23, 20, 26, 0.3), -8px -8px 16px rgba(255, 255, 255, 0.5);
  animation: cardRise 2s cubic-bezier(0.2, 0.8, 0.2, 1) infinite;
}

.hero__eyebrow {
  margin: 0;
  color: #0a4fe8;
  font-weight: 700;
  font-size: clamp(10px, 2.6vw, 12px);
  line-height: 1;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hero__title {
  margin: 0;
  color: #17141a;
  font-weight: 700;
  font-size: clamp(18px, 4.6vw, 24px);
  line-height: 1.2;
}

.hero__desc {
  margin: 0;
  color: rgba(23, 20, 26, 0.7);
  font-weight: 500;
  font-size: clamp(12px, 2.8vw, 14px);
  line-height: 1.4;
}

.hero__cta {
  margin-top: 4px;
  border: 0;
  border-radius: 999px;
  background: #17141a;
  color: #fff7e6;
  padding: 4px 20px;
  font-weight: 600;
  font-size: clamp(12px, 2.8vw, 14px);
  line-height: 1;
  box-shadow: 4px 4px 8px rgba(23, 20, 26, 0.3);
}

@keyframes blobA {
  0%, 100% {
    transform: translate(0, 0) rotate(0deg) scale(1);
  }
  50% {
    transform: translate(4%, 6%) rotate(10deg) scale(1.08);
  }
}
@keyframes blobB {
  0%, 100% {
    transform: translate(0, 0) rotate(0deg) scale(1);
  }
  50% {
    transform: translate(-5%, -4%) rotate(-8deg) scale(0.93);
  }
}
@keyframes cardRise {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-6px);
  }
}
@media (prefers-reduced-motion: reduce) {
  .hero__blob, .hero__card {
    animation: none !important;
    transform: none;
  }
}

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

export type HeroClayProps = {
  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 HeroClay({
  eyebrow = "Claymolt",
  title = "말랑한 시작",
  desc = "눌러도 돌아와요",
  cta = "무료로 시작",
  duration = 2000,
  easing = "cubic-bezier(.2,.8,.2,1)",
  color = "#2f6df6",
}: HeroClayProps) {
  const vars: Vars = { "--duration": `${duration}ms`, "--easing": easing, "--color": color };

  return (
    <section className={styles.hero} style={vars}>
      <div className={`${styles.blob} ${styles.blobA}`} aria-hidden="true" />
      <div className={`${styles.blob} ${styles.blobB}`} aria-hidden="true" />
      <div className={styles.card}>
        <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>
  );
}