03巨大数字カード

<main class="stage">
  <div class="card is-demo">
    <span class="card__num" aria-hidden="true"></span>
    <span class="card__sr">プロジェクト248件</span>
    <span class="card__label">プロジェクト</span>
  </div>
</main>

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

$duration: $dur-loop;                              // 0에서 목표까지 세는 시간
$easing: $ease-out;
$color: $subject-cream;                            // 숫자 색

@include stage($stage-orange);

// @property: 정수 커스텀 속성이라야 애니메이션 중간값도 정수로 보간된다
@property --num {
  syntax: '<integer>';
  initial-value: 0;
  inherits: false;
}

.card {
  text-align: center;
  padding: $sp-6 $sp-8;
  border-radius: $r-card;
  background: rgba($subject-cream, .08);
  border: 1px solid rgba($subject-cream, .18);

  &__num {
    --num: 0;
    counter-reset: num var(--num);
    display: block;
    font-weight: 800;
    font-size: clamp(40px, 13vw, 72px);
    line-height: 1;
    font-variant-numeric: tabular-nums;
    color: $color;

    &::before { content: counter(num); }
  }

  // counter() 생성 콘텐츠는 스크린 리더가 못 읽는다 — 실제 최종값을 시각적으로만 숨겨 따로 둔다
  &__sr {
    position: absolute;
    width: 1px; height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
  }

  &__label {
    display: block;
    margin-top: $sp-2;
    font-weight: 600;
    font-size: clamp(12px, 3vw, 15px);
    line-height: 1;
    color: $subject-ink;   // 주황 면 위 글자 — AA 4.5 (blog-design 글자 대비)
  }
}

.card.is-demo .card__num {
  animation: count-up $duration $easing infinite;
}

@keyframes count-up {
  0%   { --num: 0; }
  65%  { --num: 248; }
  100% { --num: 248; }
}

@media (prefers-reduced-motion: reduce) {
  .card.is-demo .card__num { animation: none; --num: 248; }
}

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);
}

@property --num {
  syntax: "<integer>";
  initial-value: 0;
  inherits: false;
}
.card {
  text-align: center;
  padding: 24px 32px;
  border-radius: 16px;
  background: rgba(255, 247, 230, 0.08);
  border: 1px solid rgba(255, 247, 230, 0.18);
}
.card__num {
  --num: 0;
  counter-reset: num var(--num);
  display: block;
  font-weight: 800;
  font-size: clamp(40px, 13vw, 72px);
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: #fff7e6;
}
.card__num::before {
  content: counter(num);
}
.card__sr {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}
.card__label {
  display: block;
  margin-top: 8px;
  font-weight: 600;
  font-size: clamp(12px, 3vw, 15px);
  line-height: 1;
  color: #17141a;
}

.card.is-demo .card__num {
  animation: count-up 2s ease-out infinite;
}

@keyframes count-up {
  0% {
    --num: 0;
  }
  65% {
    --num: 248;
  }
  100% {
    --num: 248;
  }
}
@media (prefers-reduced-motion: reduce) {
  .card.is-demo .card__num {
    animation: none;
    --num: 248;
  }
}

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

export type KineticCardGridProps = {
  value?: number;
  label?: string;
  /** 0에서 목표까지 세는 시간(기본 2000ms) */
  duration?: number;
  easing?: string;
  color?: string;
};

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

export default function KineticCardGrid({
  value = 248,
  label = "Projects",
  duration = 2000,
  easing = "ease-out",
  color = "#fff7e6",
}: KineticCardGridProps) {
  const vars: Vars = { "--duration": `${duration}ms`, "--easing": easing, "--color": color, "--num-target": value };

  return (
    <div className={styles.stage} style={vars}>
      <div className={styles.card}>
        <span className={styles.num} aria-hidden="true" />
        <span className={styles.sr}>{value} {label.toLowerCase()}</span>
        <span className={styles.label}>{label}</span>
      </div>
    </div>
  );
}