04Rounded icon chips

<main class="stage">
  <ul class="featurelist">
    <li class="featurelist__item featurelist__item--a is-demo">
      <span class="featurelist__chip" aria-hidden="true"></span>
      <span class="featurelist__text">Quick start</span>
    </li>
    <li class="featurelist__item featurelist__item--b is-demo">
      <span class="featurelist__chip" aria-hidden="true"></span>
      <span class="featurelist__text">Auto backup</span>
    </li>
    <li class="featurelist__item featurelist__item--c is-demo">
      <span class="featurelist__chip" aria-hidden="true"></span>
      <span class="featurelist__text">Real-time sharing</span>
    </li>
    <li class="featurelist__item featurelist__item--d is-demo">
      <span class="featurelist__chip" aria-hidden="true"></span>
      <span class="featurelist__text">Custom alerts</span>
    </li>
  </ul>
</main>

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

$duration: $dur-loop;       // 칩이 밀려 들어왔다 나가는 한 주기
$easing: $ease-out;         // 슬라이드 곡선
$color: $subject-blue;      // 칩 강조 색

@include stage($stage-paper);

.featurelist {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: clamp(4px, 2vw, 8px);
  width: clamp(220px, 74vw, 320px);
}
.featurelist__item {
  display: flex;
  align-items: center;
  gap: $sp-2;
  padding: clamp(4px, 1.5vw, 8px) $sp-2;
  border-radius: $r-pill;
  background: $subject-cream;
  box-shadow: 6px 6px 12px rgba($stage-ink, .16), -6px -6px 12px rgba($stage-paper, .9);
  animation: chipIn $duration $easing infinite;
}
.featurelist__item--a { animation-delay: 0s; }
.featurelist__item--b { animation-delay: -0.5s; }
.featurelist__item--c { animation-delay: -1s; }
.featurelist__item--d { animation-delay: -1.5s; }
.featurelist__chip {
  flex: none;
  width: clamp(24px, 8vw, 36px);
  height: clamp(24px, 8vw, 36px);
  border-radius: $r-pill;
  background: $color;
  box-shadow: inset 2px 2px 4px rgba($stage-ink, .2), inset -2px -2px 4px rgba($stage-paper, .5);
}
.featurelist__text {
  color: $subject-ink;
  font-weight: 600; font-size: clamp(12px, 2.8vw, 14px); line-height: 1.3;
}

// 데모: 칩마다 살짝 다른 박자로 오른쪽에서 밀려 들어왔다 나간다
@keyframes chipIn {
  0%   { opacity: .5; transform: translateX(-6px); }
  25%  { opacity: 1;  transform: translateX(0); }
  75%  { opacity: 1;  transform: translateX(0); }
  100% { opacity: .5; transform: translateX(-6px); }
}

@media (prefers-reduced-motion: reduce) {
  .featurelist__item { animation: none !important; opacity: 1; transform: none; }
}

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

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

.featurelist {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: clamp(4px, 2vw, 8px);
  width: clamp(220px, 74vw, 320px);
}

.featurelist__item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: clamp(4px, 1.5vw, 8px) 8px;
  border-radius: 999px;
  background: #fff7e6;
  box-shadow: 6px 6px 12px rgba(23, 20, 26, 0.16), -6px -6px 12px rgba(255, 255, 255, 0.9);
  animation: chipIn 2s ease-out infinite;
}

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

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

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

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

.featurelist__chip {
  flex: none;
  width: clamp(24px, 8vw, 36px);
  height: clamp(24px, 8vw, 36px);
  border-radius: 999px;
  background: #2f6df6;
  box-shadow: inset 2px 2px 4px rgba(23, 20, 26, 0.2), inset -2px -2px 4px rgba(255, 255, 255, 0.5);
}

.featurelist__text {
  color: #17141a;
  font-weight: 600;
  font-size: clamp(12px, 2.8vw, 14px);
  line-height: 1.3;
}

@keyframes chipIn {
  0% {
    opacity: 0.5;
    transform: translateX(-6px);
  }
  25% {
    opacity: 1;
    transform: translateX(0);
  }
  75% {
    opacity: 1;
    transform: translateX(0);
  }
  100% {
    opacity: 0.5;
    transform: translateX(-6px);
  }
}
@media (prefers-reduced-motion: reduce) {
  .featurelist__item {
    animation: none !important;
    opacity: 1;
    transform: none;
  }
}

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

export type FeatureListClayProps = {
  items?: string[];
  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 FeatureListClay({
  items = ["빠른 시작", "자동 백업", "실시간 공유", "맞춤 알림"],
  duration = 2000,
  easing = "ease-out",
  color = "#2f6df6",
}: FeatureListClayProps) {
  const vars: Vars = { "--duration": `${duration}ms`, "--easing": easing, "--color": color };

  return (
    <ul className={styles.list} style={vars}>
      {items.map((text, i) => (
        <li key={text} className={styles.item} style={{ animationDelay: DELAYS[i % DELAYS.length] }}>
          <span className={styles.chip} aria-hidden="true" />
          <span className={styles.text}>{text}</span>
        </li>
      ))}
    </ul>
  );
}