03Puffy inflated cards

<main class="stage">
  <div class="cardgrid">
    <div class="cardgrid__item cardgrid__item--a is-demo">
      <span class="cardgrid__icon" aria-hidden="true"></span>
      <p class="cardgrid__label">Fast search</p>
    </div>
    <div class="cardgrid__item cardgrid__item--b is-demo">
      <span class="cardgrid__icon" aria-hidden="true"></span>
      <p class="cardgrid__label">Auto-organize</p>
    </div>
    <div class="cardgrid__item cardgrid__item--c is-demo">
      <span class="cardgrid__icon" aria-hidden="true"></span>
      <p class="cardgrid__label">Team chat</p>
    </div>
    <div class="cardgrid__item cardgrid__item--d is-demo">
      <span class="cardgrid__icon" aria-hidden="true"></span>
      <p class="cardgrid__label">Reports</p>
    </div>
  </div>
</main>

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

$duration: $dur-loop;       // 카드마다 부푸는 한 주기
$easing: $ease-spring;      // 부푸는 곡선
$color: $subject-cream;     // 무대(주황)와 대비되는 피사체 색

@include stage($stage-orange);

.cardgrid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: $sp-2;
  width: clamp(220px, 78vw, 340px);
}
.cardgrid__item {
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: $sp-1;
  padding: $sp-3;
  border-radius: $r-card;
  background: $color;
  box-shadow: 8px 8px 16px rgba($stage-ink, .28), -8px -8px 16px rgba($stage-paper, .5);
  animation: puff $duration $easing infinite;
}
.cardgrid__item--a { animation-delay: 0s; }
.cardgrid__item--b { animation-delay: -0.5s; }
.cardgrid__item--c { animation-delay: -1s; }
.cardgrid__item--d { animation-delay: -1.5s; }
.cardgrid__icon {
  width: clamp(20px, 8vw, 28px);
  height: clamp(20px, 8vw, 28px);
  border-radius: $r-sm;
  background: $subject-blue;
}
.cardgrid__label {
  margin: 0;
  color: $subject-ink;
  font-weight: 700; font-size: clamp(11px, 2.8vw, 13px); line-height: 1.3;
}

// 데모: 네 칸이 서로 다른 박자로 살짝 부풀었다 가라앉는다
@keyframes puff {
  0%, 100% { transform: scale(1) translateY(0); }
  50%      { transform: scale(1.05) translateY(-4px); }
}

@media (prefers-reduced-motion: reduce) {
  .cardgrid__item { 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: #ff4d1f;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  padding: clamp(8px, 4vw, 24px);
}

.cardgrid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
  width: clamp(220px, 78vw, 340px);
}

.cardgrid__item {
  box-sizing: border-box;
  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, 0.28), -8px -8px 16px rgba(255, 255, 255, 0.5);
  animation: puff 2s cubic-bezier(0.2, 0.8, 0.2, 1) infinite;
}

.cardgrid__item--a {
  animation-delay: 0s;
}

.cardgrid__item--b {
  animation-delay: -0.5s;
}

.cardgrid__item--c {
  animation-delay: -1s;
}

.cardgrid__item--d {
  animation-delay: -1.5s;
}

.cardgrid__icon {
  width: clamp(20px, 8vw, 28px);
  height: clamp(20px, 8vw, 28px);
  border-radius: 8px;
  background: #2f6df6;
}

.cardgrid__label {
  margin: 0;
  color: #17141a;
  font-weight: 700;
  font-size: clamp(11px, 2.8vw, 13px);
  line-height: 1.3;
}

@keyframes puff {
  0%, 100% {
    transform: scale(1) translateY(0);
  }
  50% {
    transform: scale(1.05) translateY(-4px);
  }
}
@media (prefers-reduced-motion: reduce) {
  .cardgrid__item {
    animation: none !important;
    transform: none;
  }
}

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

export type CardGridClayItem = { label: string };

export type CardGridClayProps = {
  items?: CardGridClayItem[];
  duration?: number;
  easing?: string;
  color?: string;
};

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

const DELAYS = ["0s", "-0.5s", "-1s", "-1.5s"];

export default function CardGridClay({
  items = [
    { label: "빠른 검색" },
    { label: "자동 정리" },
    { label: "팀 채팅" },
    { label: "리포트" },
  ],
  duration = 2000,
  easing = "cubic-bezier(.2,.8,.2,1)",
  color = "#fff7e6",
}: CardGridClayProps) {
  const vars: Vars = { "--duration": `${duration}ms`, "--easing": easing, "--color": color };

  return (
    <div className={styles.grid} style={vars}>
      {items.map((it, i) => (
        <div
          key={it.label}
          className={styles.item}
          style={{ animationDelay: DELAYS[i % DELAYS.length] }}
        >
          <span className={styles.icon} aria-hidden="true" />
          <p className={styles.label}>{it.label}</p>
        </div>
      ))}
    </div>
  );
}