02Chữ trạng thái shimmer

<main class="stage">
  <div class="sh-status is-demo">
    <span class="sh-label">Thinking…</span>
  </div>
</main>

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

// ── 변수 3개 ──────────────────────────────────────────
$duration: 1.6s;
$easing: linear;
$color: $subject-ink;

@include stage($stage-yellow);

.sh-status {
  padding: $sp-3 $sp-5;
  border-radius: $r-pill;
  background: rgba(23, 20, 26, .06);
}

.sh-label {
  display: inline-block;
  font: 600 16px/1 -apple-system, "Segoe UI", sans-serif;
  background-image: linear-gradient(
    90deg,
    rgba($subject-ink, .72) 0%,
    rgba($subject-ink, .72) 42%,
    $subject-cream 50%,
    rgba($subject-ink, .72) 58%,
    rgba($subject-ink, .72) 100%
  );
  background-size: 220% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: rgba($subject-ink, .72);
}

// 실사용: 상태 문구가 바뀔 때마다 JS 가 텍스트만 교체한다. 쉬머는 항상 재생
@keyframes sh-sweep {
  0%   { background-position: 120% 0; }
  100% { background-position: -20% 0; }
}
.sh-status.is-demo .sh-label {
  animation: sh-sweep $duration $easing infinite;
}

@media (prefers-reduced-motion: reduce) {
  .sh-status.is-demo .sh-label {
    animation: none !important;
    background-position: 0 0 !important;
    color: $color !important;
  }
}

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

.stage {
  box-sizing: border-box;
  min-height: 100vh;
  display: grid;
  place-items: center;
  margin: 0;
  background: #ffd23f;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  padding: clamp(8px, 4vw, 24px);
}

.sh-status {
  padding: 12px 20px;
  border-radius: 999px;
  background: rgba(23, 20, 26, 0.06);
}

.sh-label {
  display: inline-block;
  font: 600 16px/1 -apple-system, "Segoe UI", sans-serif;
  background-image: linear-gradient(90deg, rgba(23, 20, 26, 0.72) 0%, rgba(23, 20, 26, 0.72) 42%, #fff7e6 50%, rgba(23, 20, 26, 0.72) 58%, rgba(23, 20, 26, 0.72) 100%);
  background-size: 220% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: rgba(23, 20, 26, 0.72);
}

@keyframes sh-sweep {
  0% {
    background-position: 120% 0;
  }
  100% {
    background-position: -20% 0;
  }
}
.sh-status.is-demo .sh-label {
  animation: sh-sweep 1.6s linear infinite;
}

@media (prefers-reduced-motion: reduce) {
  .sh-status.is-demo .sh-label {
    animation: none !important;
    background-position: 0 0 !important;
    color: #17141a !important;
  }
}

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

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

export interface TextShimmerStatusProps {
  duration?: string;
  easing?: string;
  color?: string;
  label?: string;
}

export default function TextShimmerStatus({
  duration = "1.6s",
  easing = "linear",
  color = "#17141a",
  label = "Thinking…",
}: TextShimmerStatusProps) {
  const style: Vars = {
    "--duration": duration,
    "--easing": easing,
    "--color": color,
  };
  return (
    <div className={styles.status} style={style}>
      <span className={styles.label}>{label}</span>
    </div>
  );
}