08스캘럽 가장자리 푸터

<main class="stage">
  <footer class="footercandy">
    <span class="footercandy__scallop" aria-hidden="true"></span>
    <div class="footercandy__cols">
      <div class="footercandy__col footercandy__col--lav">
        <p class="footercandy__head">제품</p>
        <p class="footercandy__link">기능</p>
        <p class="footercandy__link">요금제</p>
      </div>
      <div class="footercandy__col footercandy__col--bub">
        <p class="footercandy__head">회사</p>
        <p class="footercandy__link">소개</p>
        <p class="footercandy__link">문의</p>
      </div>
      <div class="footercandy__col footercandy__col--min">
        <p class="footercandy__head">도움말</p>
        <p class="footercandy__link">자주 묻는 질문</p>
        <p class="footercandy__link">가이드</p>
      </div>
    </div>
    <p class="footercandy__copy"><span class="footercandy__spark" aria-hidden="true">✦</span> 푸딩 · 달콤한 하루 <span class="footercandy__spark footercandy__spark--b" aria-hidden="true">✦</span></p>
  </footer>
</main>

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

$duration: $dur-loop;       // 별이 한 번 반짝이는 주기
$easing: $ease-out;
$color: $stage-ink;         // 글자 기본(토큰) — 베리 잉크로 덮는다

// 캔디 팔레트 — 값은 tailwind.config.js · tokens.css 와 같다
$candy-cream:    #fff6f0;
$candy-bubble:   #ffb9cf;
$candy-lemon:    #ffe9a3;
$candy-mint:     #b5e8d2;
$candy-lavender: #cdbcf2;
$candy-berry:    #55395e;

// 푸터 패널 색 — 크림보다 살짝 진한 베리 우유크림
$panel: mix($candy-lavender, $stage-paper, 20%);

@include stage($candy-cream);

.footercandy {
  position: relative;
  box-sizing: border-box;
  width: clamp(300px, 94vw, 460px);
  padding: $sp-4 $sp-3 $sp-3;
  border-radius: $r-card;
  background: $panel;
  box-shadow: 0 -6px 20px rgba($candy-lavender, .45);
}
// 스캘럽 가장자리 — 반원 하나하나를 요소로 그리지 않고 배경 반복 하나로 그린다.
// 각 타일(26×13px) 아래변 중심에 반원을 그리면 윗반원만 남아 조개 껍질 가장자리가 된다
.footercandy__scallop {
  position: absolute;
  top: calc($sp-3 * -1);
  left: 0;
  width: 100%;
  height: $sp-3;
  background-image: radial-gradient(circle at 50% 100%, $panel 0 64%, transparent 66%);
  background-size: 26px 13px;
  background-repeat: repeat-x;
  background-position: bottom center;
}
.footercandy__cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(clamp(84px, 26vw, 120px), 1fr));
  gap: $sp-2;
}
.footercandy__col {
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  gap: $sp-1;
  padding: $sp-3;
  border-radius: $r-control;
}
.footercandy__col--lav { background: mix($candy-lavender, $stage-paper, 45%); animation: colWave $duration $easing infinite; }
.footercandy__col--bub { background: mix($candy-bubble, $stage-paper, 45%); animation: colWave $duration $easing infinite; animation-delay: calc($duration / -3); }
.footercandy__col--min { background: mix($candy-mint, $stage-paper, 45%); animation: colWave $duration $easing infinite; animation-delay: calc($duration / -3 * 2); }
.footercandy__head {
  margin: 0;
  color: $candy-berry;
  font-weight: 700; font-size: clamp(10px, 2.6vw, 12px); line-height: 1;
  letter-spacing: .06em;
}
.footercandy__link {
  margin: 0;
  color: rgba($candy-berry, .78);
  font-weight: 500; font-size: clamp(11px, 2.8vw, 13px); line-height: 1.5;
}
.footercandy__copy {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: $sp-2;
  margin: $sp-3 0 0;
  color: rgba($candy-berry, .78);
  font-weight: 500; font-size: clamp(10px, 2.6vw, 12px); line-height: 1;
}
.footercandy__spark {
  color: $candy-bubble;
  animation: sparkTwinkle $duration $easing infinite;
}
.footercandy__spark--b {
  animation-delay: calc($duration / -2);
  color: $candy-lavender;
}

// 데모: 세 칸이 순서대로 살짝 들썩이는 물결을 만들고, 별 두 개는 어긋나게 반짝인다
@keyframes colWave {
  0%, 40%, 100% { transform: translateY(0); }
  20%           { transform: translateY(-6px); }
}
@keyframes sparkTwinkle {
  0%, 100% { opacity: .35; transform: scale(.8) rotate(0deg); }
  50%      { opacity: 1; transform: scale(1.3) rotate(25deg); }
}

// 반응형: 320×200 처럼 세로가 짧은 화면에선 칸 속과 스캘럽 번짐을 줄인다(BD9)
@media (max-width: 340px), (max-height: 220px) {
  .footercandy { padding: $sp-3 $sp-2 $sp-2; }
  .footercandy__scallop { top: calc($sp-2 * -1); height: $sp-2; background-size: 20px 10px; }
  .footercandy__cols { gap: $sp-1; }
  .footercandy__col { padding: $sp-2; }
  .footercandy__link { display: none; }
  .footercandy__copy { margin-top: $sp-2; font-size: 9px; }
}

@media (prefers-reduced-motion: reduce) {
  .footercandy__col, .footercandy__spark { animation: none !important; transform: none; }
  .footercandy__spark { opacity: .8; }
}

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

.stage {
  box-sizing: border-box;
  min-height: 100vh;
  display: grid;
  place-items: center;
  margin: 0;
  background: #fff6f0;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  padding: clamp(8px, 4vw, 24px);
}

.footercandy {
  position: relative;
  box-sizing: border-box;
  width: clamp(300px, 94vw, 460px);
  padding: 16px 12px 12px;
  border-radius: 16px;
  background: rgb(96.0784313725%, 94.7450980392%, 98.9803921569%);
  box-shadow: 0 -6px 20px rgba(205, 188, 242, 0.45);
}

.footercandy__scallop {
  position: absolute;
  top: -12px;
  left: 0;
  width: 100%;
  height: 12px;
  background-image: radial-gradient(circle at 50% 100%, rgb(96.0784313725%, 94.7450980392%, 98.9803921569%) 0 64%, transparent 66%);
  background-size: 26px 13px;
  background-repeat: repeat-x;
  background-position: bottom center;
}

.footercandy__cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(clamp(84px, 26vw, 120px), 1fr));
  gap: 8px;
}

.footercandy__col {
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px;
  border-radius: 12px;
}

.footercandy__col--lav {
  background: rgb(91.1764705882%, 88.1764705882%, 97.7058823529%);
  animation: colWave 2s ease-out infinite;
}

.footercandy__col--bub {
  background: rgb(100%, 87.6470588235%, 91.5294117647%);
  animation: colWave 2s ease-out infinite;
  animation-delay: -0.6666666667s;
}

.footercandy__col--min {
  background: rgb(86.9411764706%, 95.9411764706%, 92.0588235294%);
  animation: colWave 2s ease-out infinite;
  animation-delay: -1.3333333333s;
}

.footercandy__head {
  margin: 0;
  color: #55395e;
  font-weight: 700;
  font-size: clamp(10px, 2.6vw, 12px);
  line-height: 1;
  letter-spacing: 0.06em;
}

.footercandy__link {
  margin: 0;
  color: rgba(85, 57, 94, 0.78);
  font-weight: 500;
  font-size: clamp(11px, 2.8vw, 13px);
  line-height: 1.5;
}

.footercandy__copy {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin: 12px 0 0;
  color: rgba(85, 57, 94, 0.78);
  font-weight: 500;
  font-size: clamp(10px, 2.6vw, 12px);
  line-height: 1;
}

.footercandy__spark {
  color: #ffb9cf;
  animation: sparkTwinkle 2s ease-out infinite;
}

.footercandy__spark--b {
  animation-delay: -1s;
  color: #cdbcf2;
}

@keyframes colWave {
  0%, 40%, 100% {
    transform: translateY(0);
  }
  20% {
    transform: translateY(-6px);
  }
}
@keyframes sparkTwinkle {
  0%, 100% {
    opacity: 0.35;
    transform: scale(0.8) rotate(0deg);
  }
  50% {
    opacity: 1;
    transform: scale(1.3) rotate(25deg);
  }
}
@media (max-width: 340px), (max-height: 220px) {
  .footercandy {
    padding: 12px 8px 8px;
  }
  .footercandy__scallop {
    top: -8px;
    height: 8px;
    background-size: 20px 10px;
  }
  .footercandy__cols {
    gap: 4px;
  }
  .footercandy__col {
    padding: 8px;
  }
  .footercandy__link {
    display: none;
  }
  .footercandy__copy {
    margin-top: 8px;
    font-size: 9px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .footercandy__col, .footercandy__spark {
    animation: none !important;
    transform: none;
  }
  .footercandy__spark {
    opacity: 0.8;
  }
}

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

export type FooterCandyProps = {
  columns?: { head: string; links: string[] }[];
  copy?: string;
  /** 한 주기(기본 2000ms) */
  duration?: number;
  easing?: string;
  color?: string;
};

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

const TONE = ["lav", "bub", "min"] as const;

export default function FooterCandy({
  columns = [
    { head: "제품", links: ["기능", "요금제"] },
    { head: "회사", links: ["소개", "문의"] },
    { head: "도움말", links: ["자주 묻는 질문", "가이드"] },
  ],
  copy = "푸딩 · 달콤한 하루",
  duration = 2000,
  easing = "ease-out",
  color = "#ffb9cf",
}: FooterCandyProps) {
  const vars: Vars = { "--duration": `${duration}ms`, "--easing": easing, "--color": color };

  return (
    <footer className={styles.footercandy} style={vars}>
      <span className={styles.scallop} aria-hidden="true" />
      <div className={styles.cols}>
        {columns.map((c, i) => (
          <div key={c.head} className={`${styles.col} ${styles[TONE[i % 3]]}`}>
            <p className={styles.head}>{c.head}</p>
            {c.links.map((l) => (
              <p key={l} className={styles.link}>{l}</p>
            ))}
          </div>
        ))}
      </div>
      <p className={styles.copy}>
        <span className={styles.spark} aria-hidden="true">✦</span> {copy} <span className={`${styles.spark} ${styles.sparkB}`} aria-hidden="true">✦</span>
      </p>
    </footer>
  );
}