09Badge tĩnh cho prefers-reduced-motion

<main class="stage">
  <div class="rb-badge is-demo">
    <span class="rb-dot"></span>
    <span class="rb-text">Generating</span>
  </div>
</main>

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

// ── 변수 3개 ──────────────────────────────────────────
$duration: 1.6s;
$easing: $ease-out;
$color: $subject-blue;

@include stage($stage-ink);

.rb-badge {
  display: inline-flex;
  align-items: center;
  gap: $sp-2;
  padding: $sp-2 $sp-4;
  border-radius: $r-pill;
  background: rgba(255, 255, 255, .08);
  color: $subject-cream;
  font: 600 12px/1 -apple-system, "Segoe UI", sans-serif;
}

.rb-dot {
  width: $sp-2;
  height: $sp-2;
  border-radius: $r-pill;
  background: $color;
}

// 기본: box-shadow 로 번지는 맥박. prefers-reduced-motion: reduce 에서는 애니메이션을 끄고
// 점 자체를 고정 크기로 두어(정적 뱃지) 같은 자리에서 움직임 없이 "생성 중" 임을 전달한다
@keyframes rb-pulse {
  0%   { box-shadow: 0 0 0 0 rgba(47, 109, 246, .55); transform: scale(1); }
  70%  { box-shadow: 0 0 0 8px rgba(47, 109, 246, 0); transform: scale(1.15); }
  100% { box-shadow: 0 0 0 0 rgba(47, 109, 246, 0); transform: scale(1); }
}
.rb-badge.is-demo .rb-dot {
  animation: rb-pulse $duration $easing infinite;
}

@media (prefers-reduced-motion: reduce) {
  .rb-badge.is-demo .rb-dot {
    animation: none !important;
    box-shadow: none !important;
    transform: none !important;
  }
}

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

.stage {
  box-sizing: border-box;
  min-height: 100vh;
  display: grid;
  place-items: center;
  margin: 0;
  background: #17141a;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  padding: clamp(8px, 4vw, 24px);
}

.rb-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: #fff7e6;
  font: 600 12px/1 -apple-system, "Segoe UI", sans-serif;
}

.rb-dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: #2f6df6;
}

@keyframes rb-pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(47, 109, 246, 0.55);
    transform: scale(1);
  }
  70% {
    box-shadow: 0 0 0 8px rgba(47, 109, 246, 0);
    transform: scale(1.15);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(47, 109, 246, 0);
    transform: scale(1);
  }
}
.rb-badge.is-demo .rb-dot {
  animation: rb-pulse 1.6s ease-out infinite;
}

@media (prefers-reduced-motion: reduce) {
  .rb-badge.is-demo .rb-dot {
    animation: none !important;
    box-shadow: none !important;
    transform: none !important;
  }
}

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

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

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

export default function ReducedMotionBadge({
  duration = "1.6s",
  easing = "ease-out",
  color = "#2f6df6",
  label = "Generating",
}: ReducedMotionBadgeProps) {
  const style: Vars = {
    "--duration": duration,
    "--easing": easing,
    "--color": color,
  };
  return (
    <div className={styles.badge} style={style}>
      <span className={styles.dot} />
      <span className={styles.text}>{label}</span>
    </div>
  );
}