09Loading badge holographic shimmer

<main class="stage">
  <div class="loading-badge">
    <span class="loading-badge__shine" aria-hidden="true"></span>
    <span class="loading-badge__dot" aria-hidden="true"></span>
    <span class="loading-badge__label">Processing</span>
  </div>
</main>

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

$duration: $dur-loop;                                    // 시머 띠가 한 번 훑는 시간
$easing: linear;
$color: $subject-blue;                                   // 점 색

@include stage($stage-ink);

.loading-badge {
  position: relative;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  gap: $sp-2;
  padding: $sp-2 $sp-4;
  border-radius: $r-pill;
  background: $stage-ink;
  box-shadow: $shadow-press;
  border: 1px solid rgba($stage-paper, .12);
}
.loading-badge__shine {
  position: absolute; inset: 0;
  background: repeating-linear-gradient(115deg,
    transparent 0 12%, rgba(255, 94, 203, .55) 12% 16%, rgba(94, 241, 255, .55) 16% 20%,
    rgba(163, 255, 94, .55) 20% 24%, transparent 24% 36%);
  background-size: 260% 260%;
  animation: shimmer-sweep $duration $easing infinite;
}
.loading-badge__dot {
  position: relative; z-index: 1;
  width: 8px; height: 8px; border-radius: $r-pill;
  background: $color;
  animation: dot-pulse $duration $ease-out infinite;
}
.loading-badge__label { position: relative; z-index: 1; font-size: 11px; font-weight: 700; color: $stage-paper; font-family: inherit; }

@keyframes shimmer-sweep {
  0%   { background-position: 0% 0%; }
  100% { background-position: -260% -260%; }
}
@keyframes dot-pulse {
  0%, 100% { transform: scale(1);   opacity: 1; }
  50%      { transform: scale(1.4); opacity: .6; }
}

@media (prefers-reduced-motion: reduce) {
  .loading-badge__shine,
  .loading-badge__dot { animation: none; }
}

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);
}

.loading-badge {
  position: relative;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 999px;
  background: #17141a;
  box-shadow: 0 6px 12px rgba(23, 20, 26, 0.32);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.loading-badge__shine {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(115deg, transparent 0 12%, rgba(255, 94, 203, 0.55) 12% 16%, rgba(94, 241, 255, 0.55) 16% 20%, rgba(163, 255, 94, 0.55) 20% 24%, transparent 24% 36%);
  background-size: 260% 260%;
  animation: shimmer-sweep 2s linear infinite;
}

.loading-badge__dot {
  position: relative;
  z-index: 1;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: #2f6df6;
  animation: dot-pulse 2s ease-out infinite;
}

.loading-badge__label {
  position: relative;
  z-index: 1;
  font-size: 11px;
  font-weight: 700;
  color: #ffffff;
  font-family: inherit;
}

@keyframes shimmer-sweep {
  0% {
    background-position: 0% 0%;
  }
  100% {
    background-position: -260% -260%;
  }
}
@keyframes dot-pulse {
  0%, 100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.4);
    opacity: 0.6;
  }
}
@media (prefers-reduced-motion: reduce) {
  .loading-badge__shine,
  .loading-badge__dot {
    animation: none;
  }
}

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

export type LoadingShimmerBadgeProps = {
  label: string;
  /** 시머 띠가 한 번 훑는 시간 (기본 2000ms) */
  duration?: number;
  easing?: string;
  /** 점 색 */
  color?: string;
};

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

export default function LoadingShimmerBadge({
  label,
  duration = 2000,
  easing = "linear",
  color = "#2f6df6",
}: LoadingShimmerBadgeProps) {
  const vars: Vars = { "--duration": `${duration}ms`, "--easing": easing, "--color": color };
  return (
    <div className={styles.badge} style={vars}>
      <span className={styles.shine} aria-hidden="true" />
      <span className={styles.dot} aria-hidden="true" />
      <span className={styles.label}>{label}</span>
    </div>
  );
}