01Status pill indicator (online/away/busy/offline)

<main class="stage is-demo">
  <ul class="pills" aria-label="Status list">
    <li class="pill pill--online"><span class="dot" aria-hidden="true"></span>Online</li>
    <li class="pill pill--away"><span class="dot" aria-hidden="true"></span>Away</li>
    <li class="pill pill--busy"><span class="dot" aria-hidden="true"></span>Busy</li>
    <li class="pill pill--offline"><span class="dot" aria-hidden="true"></span>Offline</li>
  </ul>
</main>

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

// ── 변수 3개 ──────────────────────────────────────────
$duration: $dur-loop;   // 2s — 온라인 링 한 번 퍼짐
$easing: $ease-out;
$color: #50a26e;        // 온라인 그린

@include stage($stage-paper);

.pills {
  display: flex; flex-direction: column; gap: $sp-2;
  margin: 0; padding: 0; list-style: none;
}

.pill {
  display: inline-flex; align-items: center; gap: $sp-2;
  padding: $sp-2 $sp-4;
  border-radius: $r-pill;
  background: #fff;
  box-shadow: $shadow-press;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  font-weight: 600;
  font-size: 13px;
  color: $subject-ink;
}

.dot {
  position: relative;
  width: 8px; height: 8px;
  border-radius: 50%;
  flex: 0 0 auto;
}

// 온라인 — 링만 애니메이션, 점 자체는 고정
.pill--online .dot {
  background: $color;
}
.pill--online .dot::before {
  content: "";
  position: absolute; inset: -4px;
  border-radius: 50%;
  border: 2px solid $color;
  opacity: 0;
  transform: scale(.6);
}
.stage.is-demo .pill--online .dot::before {
  animation: ping $duration $easing infinite;
}

// 나머지 셋은 정지 상태 — 대조군
.pill--away .dot { background: #b9a871; }
.pill--busy .dot { background: #be7c7c; }
.pill--offline .dot { background: #9ca3af; }

@keyframes ping {
  0% { opacity: .55; transform: scale(.6); }
  70%, 100% { opacity: 0; transform: scale(2.1); }
}

// ── 한 겹: 상태 전이 — pill 배경 그린 틴트 전이 + 두 번째 파문 링 (기존 ping 위에) ──
.pill--online { position: relative; }
.stage.is-demo .pill--online {
  animation: pill-tint $duration $ease-out infinite;
}
.pill--online::after {
  content: "";
  position: absolute; inset: -8px;   // dot::before(-4px)보다 큰 두 번째 링
  border-radius: $r-pill;
  border: 2px solid $color;
  opacity: 0;
  pointer-events: none;
}
.stage.is-demo .pill--online::after {
  animation: pill-ripple $duration $easing infinite;
  animation-delay: calc($duration / 3);   // 첫 링을 뒤따라 확산
}
@keyframes pill-tint {
  0%, 35% { background-color: #fff; }
  55% { background-color: mix(#fff, $color, 88%); }
  80%, 100% { background-color: #fff; }
}
@keyframes pill-ripple {
  0% { opacity: .38; transform: scale(.95); }
  70%, 100% { opacity: 0; transform: scale(1.16); }
}

@media (prefers-reduced-motion: reduce) {
  .stage.is-demo .pill--online .dot::before { animation: none; opacity: 0; }
  .stage.is-demo .pill--online { animation: none; }
  .stage.is-demo .pill--online::after { animation: none; opacity: 0; }
}

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);
}

.pills {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 999px;
  background: #fff;
  box-shadow: 0 6px 12px rgba(23, 20, 26, 0.32);
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  font-weight: 600;
  font-size: 13px;
  color: #17141a;
}

.dot {
  position: relative;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex: 0 0 auto;
}

.pill--online .dot {
  background: #50a26e;
}

.pill--online .dot::before {
  content: "";
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid #50a26e;
  opacity: 0;
  transform: scale(0.6);
}

.stage.is-demo .pill--online .dot::before {
  animation: ping 2s ease-out infinite;
}

.pill--away .dot {
  background: #b9a871;
}

.pill--busy .dot {
  background: #be7c7c;
}

.pill--offline .dot {
  background: #9ca3af;
}

@keyframes ping {
  0% {
    opacity: 0.55;
    transform: scale(0.6);
  }
  70%, 100% {
    opacity: 0;
    transform: scale(2.1);
  }
}
.pill--online {
  position: relative;
}

.stage.is-demo .pill--online {
  animation: pill-tint 2s ease-out infinite;
}

.pill--online::after {
  content: "";
  position: absolute;
  inset: -8px;
  border-radius: 999px;
  border: 2px solid #50a26e;
  opacity: 0;
  pointer-events: none;
}

.stage.is-demo .pill--online::after {
  animation: pill-ripple 2s ease-out infinite;
  animation-delay: 0.6666666667s;
}

@keyframes pill-tint {
  0%, 35% {
    background-color: #fff;
  }
  55% {
    background-color: rgb(91.7647058824%, 95.6235294118%, 93.1764705882%);
  }
  80%, 100% {
    background-color: #fff;
  }
}
@keyframes pill-ripple {
  0% {
    opacity: 0.38;
    transform: scale(0.95);
  }
  70%, 100% {
    opacity: 0;
    transform: scale(1.16);
  }
}
@media (prefers-reduced-motion: reduce) {
  .stage.is-demo .pill--online .dot::before {
    animation: none;
    opacity: 0;
  }
  .stage.is-demo .pill--online {
    animation: none;
  }
  .stage.is-demo .pill--online::after {
    animation: none;
    opacity: 0;
  }
}

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

export type StatusPillIndicatorProps = {
  duration?: number;
  easing?: string;
  color?: string;
};

export default function StatusPillIndicator({
  duration = 2000,
  easing = "ease-out",
  color = "#16a34a",
}: StatusPillIndicatorProps) {
  const vars: CSSProperties = { "--duration": `${duration}ms`, "--easing": easing, "--color": color } as CSSProperties;
  return (
    <ul className={styles.pills} style={vars} aria-label="status list">
      <li className={`${styles.pill} ${styles.online}`}><span className={styles.dot} />Online</li>
      <li className={`${styles.pill} ${styles.away}`}><span className={styles.dot} />Away</li>
      <li className={`${styles.pill} ${styles.busy}`}><span className={styles.dot} />Busy</li>
      <li className={`${styles.pill} ${styles.offline}`}><span className={styles.dot} />Offline</li>
    </ul>
  );
}