06Tile đếm số liệu

<main class="stage">
  <div class="sc-grid is-demo">
    <div class="sc-tile sc-tile--a sc-focal">
      <span class="sc-tile__tag">Conversion</span>
      <span class="sc-stat"><span class="sc-stat__value"></span><span class="sc-stat__unit">%</span></span>
    </div>
    <div class="sc-tile sc-tile--b">
      <span class="sc-tile__tag">Live</span>
    </div>
    <div class="sc-tile sc-tile--c">
      <span class="sc-tile__tag">+9 today</span>
    </div>
  </div>
</main>

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

// ── 변수 3개 ──────────────────────────────────────────
$duration: 1.2s;
$easing: $ease-out;
$target: 87;

@include stage($stage-yellow);

// 카운트업에 쓰는 커스텀 속성 — 정수 타입으로 등록해야 키프레임이 숫자를 보간한다
// 지원: Chromium·Safari 16.4+·Firefox 128+ (그 밖은 카운트업 없이 목표값이 바로 보인다)
@property --num {
  syntax: '<integer>';
  inherits: true;
  initial-value: 0;
}

.sc-grid {
  width: min(340px, 90vw);
  aspect-ratio: 340 / 190;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: $sp-2;
}

.sc-tile {
  border-radius: $r-sm;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: $sp-3;
  box-sizing: border-box;
  color: $subject-ink;
  font: 600 12px/1 -apple-system, "Segoe UI", sans-serif;
  background: $subject-cream;
}

.sc-tile--a { grid-row: 1 / 3; }
.sc-tile--b, .sc-tile--c { background: rgba(23, 20, 26, .08); }
.sc-tile__tag { opacity: .7; }

.sc-stat { margin-top: $sp-1; font-size: 30px; font-weight: 700; }
// 실제로 보이는 숫자는 ::after 의 counter() 다 — value 자신의 텍스트는 비워둔다
.sc-stat__value {
  --num: 0;
}
.sc-stat__value::after {
  counter-reset: num var(--num);
  content: counter(num);
}
.sc-stat__unit { margin-left: $sp-1; font-size: 16px; opacity: .7; }

@keyframes sc-countup {
  to { --num: #{$target}; }
}

// 실사용: 진짜 마우스 호버 — JS 없이 CSS 만으로 카운트업
.sc-focal:hover .sc-stat__value { animation: sc-countup $duration $easing forwards; }

// 데모 루프: is-demo 는 같은 카운트업을 forwards 로 (헤드리스 캡처는 currentTime 을 직접 놓아 0→목표를 그대로 읽는다)
.sc-grid.is-demo .sc-focal .sc-stat__value { animation: sc-countup $duration $easing forwards; }

@media (prefers-reduced-motion: reduce) {
  .sc-focal:hover .sc-stat__value,
  .sc-grid.is-demo .sc-focal .sc-stat__value { animation: none !important; --num: #{$target}; }
}

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);
}

@property --num {
  syntax: "<integer>";
  inherits: true;
  initial-value: 0;
}
.sc-grid {
  width: min(340px, 90vw);
  aspect-ratio: 340/190;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 8px;
}

.sc-tile {
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 12px;
  box-sizing: border-box;
  color: #17141a;
  font: 600 12px/1 -apple-system, "Segoe UI", sans-serif;
  background: #fff7e6;
}

.sc-tile--a {
  grid-row: 1/3;
}

.sc-tile--b, .sc-tile--c {
  background: rgba(23, 20, 26, 0.08);
}

.sc-tile__tag {
  opacity: 0.7;
}

.sc-stat {
  margin-top: 4px;
  font-size: 30px;
  font-weight: 700;
}

.sc-stat__value {
  --num: 0;
}

.sc-stat__value::after {
  counter-reset: num var(--num);
  content: counter(num);
}

.sc-stat__unit {
  margin-left: 4px;
  font-size: 16px;
  opacity: 0.7;
}

@keyframes sc-countup {
  to {
    --num: 87;
  }
}
.sc-focal:hover .sc-stat__value {
  animation: sc-countup 1.2s ease-out forwards;
}

.sc-grid.is-demo .sc-focal .sc-stat__value {
  animation: sc-countup 1.2s ease-out forwards;
}

@media (prefers-reduced-motion: reduce) {
  .sc-focal:hover .sc-stat__value,
  .sc-grid.is-demo .sc-focal .sc-stat__value {
    animation: none !important;
    --num: 87;
  }
}

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

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

export interface StatCountTileProps {
  duration?: string;
  easing?: string;
  target?: number;
}

// 지원: Chromium·Safari 16.4+·Firefox 128+. 미지원 브라우저는 카운트업 없이 목표값이 바로 보인다
export default function StatCountTile({
  duration = "1.2s",
  easing = "ease-out",
  target = 87,
}: StatCountTileProps) {
  const style: Vars = {
    "--duration": duration,
    "--easing": easing,
    "--target": target,
  };
  return (
    <div className={styles.grid} style={style}>
      <div className={`${styles.tile} ${styles.tileA} ${styles.focal}`}>
        <span className={styles.tag}>Conversion</span>
        <span className={styles.stat}>
          <span className={styles.value} />
          <span className={styles.unit}>%</span>
        </span>
      </div>
      <div className={`${styles.tile} ${styles.tileB}`}>
        <span className={styles.tag}>Live</span>
      </div>
      <div className={`${styles.tile} ${styles.tileC}`}>
        <span className={styles.tag}>+9 today</span>
      </div>
    </div>
  );
}