03Dừng khi hover

<main class="stage">
  <div class="marquee is-demo" tabindex="0">
    <div class="marquee__track">
      <span class="marquee__chip">Đăng ký hôm nay, miễn phí tháng đầu</span>
      <span class="marquee__chip" aria-hidden="true">Đăng ký hôm nay, miễn phí tháng đầu</span>
    </div>
    <span class="marquee__cursor" aria-hidden="true"></span>
  </div>
</main>

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

$duration: 10s;                                    // 실서비스 속도 — 데모는 아래 .is-demo 가 별도로 2s 루프에 맞춘다
$easing: linear;
$color: $subject-cream;

@include stage($stage-orange);

.marquee {
  position: relative;
  width: min(300px, 82vw);
  overflow: hidden;
  border-radius: $r-card;
  padding: 16px 0;
  background: rgba($color, .12);
  outline: none;
}
.marquee__track {
  display: flex;
  width: max-content;
  animation: marquee-scroll $duration $easing infinite;
}
.marquee__chip {
  margin-right: 40px;   // 트랙의 gap 대신 — 세트 폭이 정확히 절반이 되어 -50% 이음새가 0px 이 된다
  flex-shrink: 0;
  white-space: nowrap;
  font-weight: 700; font-size: clamp(13px, 3.6vw, 15px); line-height: 1; font-family: inherit;
  color: $subject-ink;   // 주황 면 위 글자 — AA 4.5 (blog-design 글자 대비)
}
.marquee__cursor {
  position: absolute;
  top: 8px;
  right: 22px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: $subject-blue;
  box-shadow: 0 0 0 3px rgba($subject-blue, .28);
  opacity: 0;
}

// 실제 사용자는 마우스를 올리면 여기서 멈춘다 — 읽던 문구가 그대로 남는다
.marquee:hover .marquee__track,
.marquee:focus-within .marquee__track,
.marquee:active .marquee__track {
  animation-play-state: paused;
}

// 데모 · 문서용: 진짜 hover 는 렌더에서 못 일으키니, 흐르다 멈췄다 다시 흐르는 한 사이클을
// 트랙 자신의 keyframes 안에 구간(plateau)으로 넣어 2초마다 반복시킨다. 커서 점은 그 구간에서만 보인다
.marquee.is-demo .marquee__track {
  animation: marquee-hover-cycle $dur-loop $easing infinite;
}
.marquee.is-demo .marquee__cursor {
  animation: cursor-hover $dur-loop $easing infinite;
}
@keyframes marquee-hover-cycle {
  0%   { transform: translateX(0); }
  38%  { transform: translateX(-32%); }
  62%  { transform: translateX(-32%); }   // 정지 구간 — 실제 hover 로 멈춘 순간을 흉내
  100% { transform: translateX(-50%); }
}
@keyframes cursor-hover {
  0%, 30%   { opacity: 0; transform: translateY(6px) scale(.6); }
  38%, 62%  { opacity: 1; transform: translateY(0) scale(1); }
  70%, 100% { opacity: 0; transform: translateY(6px) scale(.6); }
}

@media (prefers-reduced-motion: reduce) {
  .marquee__track { animation: none; transform: translateX(0); }
  .marquee__cursor { 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: #ff4d1f;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  padding: clamp(8px, 4vw, 24px);
}

.marquee {
  position: relative;
  width: min(300px, 82vw);
  overflow: hidden;
  border-radius: 16px;
  padding: 16px 0;
  background: rgba(255, 247, 230, 0.12);
  outline: none;
}

.marquee__track {
  display: flex;
  width: max-content;
  animation: marquee-scroll 10s linear infinite;
}

.marquee__chip {
  margin-right: 40px;
  flex-shrink: 0;
  white-space: nowrap;
  font-weight: 700;
  font-size: clamp(13px, 3.6vw, 15px);
  line-height: 1;
  font-family: inherit;
  color: #17141a;
}

.marquee__cursor {
  position: absolute;
  top: 8px;
  right: 22px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #2f6df6;
  box-shadow: 0 0 0 3px rgba(47, 109, 246, 0.28);
  opacity: 0;
}

.marquee:hover .marquee__track,
.marquee:focus-within .marquee__track,
.marquee:active .marquee__track {
  animation-play-state: paused;
}

.marquee.is-demo .marquee__track {
  animation: marquee-hover-cycle 2s linear infinite;
}

.marquee.is-demo .marquee__cursor {
  animation: cursor-hover 2s linear infinite;
}

@keyframes marquee-hover-cycle {
  0% {
    transform: translateX(0);
  }
  38% {
    transform: translateX(-32%);
  }
  62% {
    transform: translateX(-32%);
  }
  100% {
    transform: translateX(-50%);
  }
}
@keyframes cursor-hover {
  0%, 30% {
    opacity: 0;
    transform: translateY(6px) scale(0.6);
  }
  38%, 62% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
  70%, 100% {
    opacity: 0;
    transform: translateY(6px) scale(0.6);
  }
}
@media (prefers-reduced-motion: reduce) {
  .marquee__track {
    animation: none;
    transform: translateX(0);
  }
  .marquee__cursor {
    animation: none;
    opacity: 0;
  }
}

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

export type PauseHoverMarqueeProps = {
  text?: string;
  /** 한 바퀴가 도는 시간 (기본 10000ms) */
  duration?: number;
  easing?: string;
  color?: string;
};

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

export default function PauseHoverMarquee({
  text = "지금 가입하면 첫 달 무료",
  duration = 10000,
  easing = "linear",
  color = "#fff7e6",
}: PauseHoverMarqueeProps) {
  const vars: Vars = { "--duration": `${duration}ms`, "--easing": easing, "--color": color };

  return (
    <div className={styles.marquee} style={vars} tabIndex={0}>
      <div className={styles.track}>
        <span className={styles.chip}>{text}</span>
        <span className={styles.chip} aria-hidden="true">{text}</span>
      </div>
    </div>
  );
}