01Thinking dots

<main class="stage">
  <div class="td-bubble is-demo">
    <span class="td-dot"></span>
    <span class="td-dot"></span>
    <span class="td-dot"></span>
  </div>
</main>

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

// ── 변수 3개 ──────────────────────────────────────────
$duration: 1.2s;
$easing: $ease-out;
$color: $subject-cream;

@include stage($stage-ink);

.td-bubble {
  display: inline-flex;
  align-items: center;
  gap: $sp-2;
  padding: $sp-4 $sp-5;
  border-radius: $r-card;
  background: rgba(255, 255, 255, .08);
}

.td-dot {
  width: $sp-2;
  height: $sp-2;
  border-radius: $r-pill;
  background: $color;
  opacity: .35;
}

// 실사용: 로딩 시작하면 JS 가 .is-loading 을 붙인다
@keyframes td-bounce {
  0%, 60%, 100% { transform: translateY(0); opacity: .35; }
  30% { transform: translateY(-6px); opacity: 1; }
}
.td-bubble.is-loading .td-dot,
.td-bubble.is-demo .td-dot {
  animation: td-bounce $duration $easing infinite;
}
.td-bubble.is-demo .td-dot:nth-child(1) { animation-delay: 0ms; }
.td-bubble.is-demo .td-dot:nth-child(2) { animation-delay: 160ms; }
.td-bubble.is-demo .td-dot:nth-child(3) { animation-delay: 320ms; }

@media (prefers-reduced-motion: reduce) {
  .td-bubble.is-loading .td-dot,
  .td-bubble.is-demo .td-dot {
    animation: none !important;
    opacity: .8 !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);
}

.td-bubble {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 16px 20px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.08);
}

.td-dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: #fff7e6;
  opacity: 0.35;
}

@keyframes td-bounce {
  0%, 60%, 100% {
    transform: translateY(0);
    opacity: 0.35;
  }
  30% {
    transform: translateY(-6px);
    opacity: 1;
  }
}
.td-bubble.is-loading .td-dot,
.td-bubble.is-demo .td-dot {
  animation: td-bounce 1.2s ease-out infinite;
}

.td-bubble.is-demo .td-dot:nth-child(1) {
  animation-delay: 0ms;
}

.td-bubble.is-demo .td-dot:nth-child(2) {
  animation-delay: 160ms;
}

.td-bubble.is-demo .td-dot:nth-child(3) {
  animation-delay: 320ms;
}

@media (prefers-reduced-motion: reduce) {
  .td-bubble.is-loading .td-dot,
  .td-bubble.is-demo .td-dot {
    animation: none !important;
    opacity: 0.8 !important;
    transform: none !important;
  }
}

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

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

export interface ThinkingDotsProps {
  duration?: string;
  easing?: string;
  color?: string;
}

export default function ThinkingDots({
  duration = "1.2s",
  easing = "ease-out",
  color = "#fff7e6",
}: ThinkingDotsProps) {
  const style: Vars = {
    "--duration": duration,
    "--easing": easing,
    "--color": color,
  };
  return (
    <div className={styles.bubble} style={style}>
      <span className={styles.dot} />
      <span className={styles.dot} />
      <span className={styles.dot} />
    </div>
  );
}