07Lưới chọn màu swatch

<main class="stage">
  <fieldset class="cw is-demo">
    <legend class="sr-only">Chọn màu</legend>
    <label class="cw__cell"><input type="radio" name="cw1" class="cw__input" checked aria-label="Màu 1"><span class="cw__swatch cw__swatch--1"></span><span class="cw__check" aria-hidden="true"><svg class="cw__check-icon" viewBox="0 0 256 256"><g fill="currentColor"><path d="M232 56v144a16 16 0 0 1-16 16H40a16 16 0 0 1-16-16V56a16 16 0 0 1 16-16h176a16 16 0 0 1 16 16" opacity=".2"/><path d="m205.66 85.66l-96 96a8 8 0 0 1-11.32 0l-40-40a8 8 0 0 1 11.32-11.32L104 164.69l90.34-90.35a8 8 0 0 1 11.32 11.32"/></g></svg></span></label>
    <label class="cw__cell"><input type="radio" name="cw1" class="cw__input" aria-label="Màu 2"><span class="cw__swatch cw__swatch--2"></span><span class="cw__check" aria-hidden="true"><svg class="cw__check-icon" viewBox="0 0 256 256"><g fill="currentColor"><path d="M232 56v144a16 16 0 0 1-16 16H40a16 16 0 0 1-16-16V56a16 16 0 0 1 16-16h176a16 16 0 0 1 16 16" opacity=".2"/><path d="m205.66 85.66l-96 96a8 8 0 0 1-11.32 0l-40-40a8 8 0 0 1 11.32-11.32L104 164.69l90.34-90.35a8 8 0 0 1 11.32 11.32"/></g></svg></span></label>
    <label class="cw__cell"><input type="radio" name="cw1" class="cw__input" aria-label="Màu 3"><span class="cw__swatch cw__swatch--3"></span><span class="cw__check" aria-hidden="true"><svg class="cw__check-icon" viewBox="0 0 256 256"><g fill="currentColor"><path d="M232 56v144a16 16 0 0 1-16 16H40a16 16 0 0 1-16-16V56a16 16 0 0 1 16-16h176a16 16 0 0 1 16 16" opacity=".2"/><path d="m205.66 85.66l-96 96a8 8 0 0 1-11.32 0l-40-40a8 8 0 0 1 11.32-11.32L104 164.69l90.34-90.35a8 8 0 0 1 11.32 11.32"/></g></svg></span></label>
    <label class="cw__cell"><input type="radio" name="cw1" class="cw__input" aria-label="Màu 4"><span class="cw__swatch cw__swatch--4"></span><span class="cw__check" aria-hidden="true"><svg class="cw__check-icon" viewBox="0 0 256 256"><g fill="currentColor"><path d="M232 56v144a16 16 0 0 1-16 16H40a16 16 0 0 1-16-16V56a16 16 0 0 1 16-16h176a16 16 0 0 1 16 16" opacity=".2"/><path d="m205.66 85.66l-96 96a8 8 0 0 1-11.32 0l-40-40a8 8 0 0 1 11.32-11.32L104 164.69l90.34-90.35a8 8 0 0 1 11.32 11.32"/></g></svg></span></label>
    <label class="cw__cell"><input type="radio" name="cw1" class="cw__input" aria-label="Màu 5"><span class="cw__swatch cw__swatch--5"></span><span class="cw__check" aria-hidden="true"><svg class="cw__check-icon" viewBox="0 0 256 256"><g fill="currentColor"><path d="M232 56v144a16 16 0 0 1-16 16H40a16 16 0 0 1-16-16V56a16 16 0 0 1 16-16h176a16 16 0 0 1 16 16" opacity=".2"/><path d="m205.66 85.66l-96 96a8 8 0 0 1-11.32 0l-40-40a8 8 0 0 1 11.32-11.32L104 164.69l90.34-90.35a8 8 0 0 1 11.32 11.32"/></g></svg></span></label>
    <label class="cw__cell"><input type="radio" name="cw1" class="cw__input" aria-label="Màu 6"><span class="cw__swatch cw__swatch--6"></span><span class="cw__check" aria-hidden="true"><svg class="cw__check-icon" viewBox="0 0 256 256"><g fill="currentColor"><path d="M232 56v144a16 16 0 0 1-16 16H40a16 16 0 0 1-16-16V56a16 16 0 0 1 16-16h176a16 16 0 0 1 16 16" opacity=".2"/><path d="m205.66 85.66l-96 96a8 8 0 0 1-11.32 0l-40-40a8 8 0 0 1 11.32-11.32L104 164.69l90.34-90.35a8 8 0 0 1 11.32 11.32"/></g></svg></span></label>
  </fieldset>
</main>

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

// ── 변수 3개 ──────────────────────────────
$duration: $dur-quick;
$easing: $ease-pop;
$color: $subject-cream;

@include stage($stage-orange);

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
.cw {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: $sp-3; border: 0; margin: 0; padding: 0;
}
.cw__input { position: absolute; opacity: 0; pointer-events: none; width: 1px; height: 1px; }
.cw__cell { position: relative; display: inline-flex; cursor: pointer; }
.cw__swatch {
  width: 34px; height: 34px; border-radius: $r-sm;
  box-shadow: $shadow-press;
  display: block;
}
.cw__swatch--1 { background: $subject-blue; }
.cw__swatch--2 { background: $stage-yellow; }
.cw__swatch--3 { background: $stage-ink; }
.cw__swatch--4 { background: $error; }
.cw__swatch--5 { background: $subject-cream; }
.cw__swatch--6 { background: $stage-orange; }
.cw__check {
  position: absolute; right: -4px; bottom: -4px;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: $subject-ink;
  transform: scale(0);
  transition: transform $duration $easing;
}
.cw__check-icon {
  position: absolute; inset: 3px;
  color: $color;   // Phosphor duotone: g fill="currentColor" 가 이 값을 물려받는다
}
.cw__cell:has(.cw__input:checked) .cw__check {
  transform: scale(1);
  animation: cw-check-jelly $duration $easing;
}
// 체크 등장 젤리 오버슛: scale 0→1.25→0.9→1 + 회전 살짝 -15deg→0
@keyframes cw-check-jelly {
  0%   { transform: scale(0) rotate(-15deg); }
  55%  { transform: scale(1.25) rotate(4deg); }
  80%  { transform: scale(.9) rotate(-2deg); }
  100% { transform: scale(1) rotate(0deg); }
}

@media (prefers-reduced-motion: reduce) {
  .cw__check { transition: none; }
  .cw__cell:has(.cw__input:checked) .cw__check { animation: none !important; }
}

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);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.cw {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  border: 0;
  margin: 0;
  padding: 0;
}

.cw__input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
  width: 1px;
  height: 1px;
}

.cw__cell {
  position: relative;
  display: inline-flex;
  cursor: pointer;
}

.cw__swatch {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  box-shadow: 0 6px 12px rgba(23, 20, 26, 0.32);
  display: block;
}

.cw__swatch--1 {
  background: #2f6df6;
}

.cw__swatch--2 {
  background: #ffd23f;
}

.cw__swatch--3 {
  background: #17141a;
}

.cw__swatch--4 {
  background: #c2361a;
}

.cw__swatch--5 {
  background: #fff7e6;
}

.cw__swatch--6 {
  background: #ff4d1f;
}

.cw__check {
  position: absolute;
  right: -4px;
  bottom: -4px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #17141a;
  transform: scale(0);
  transition: transform 220ms cubic-bezier(0.2, 1.4, 0.4, 1);
}

.cw__check-icon {
  position: absolute;
  inset: 3px;
  color: #fff7e6;
}

.cw__cell:has(.cw__input:checked) .cw__check {
  transform: scale(1);
  animation: cw-check-jelly 220ms cubic-bezier(0.2, 1.4, 0.4, 1);
}

@keyframes cw-check-jelly {
  0% {
    transform: scale(0) rotate(-15deg);
  }
  55% {
    transform: scale(1.25) rotate(4deg);
  }
  80% {
    transform: scale(0.9) rotate(-2deg);
  }
  100% {
    transform: scale(1) rotate(0deg);
  }
}
@media (prefers-reduced-motion: reduce) {
  .cw__check {
    transition: none;
  }
  .cw__cell:has(.cw__input:checked) .cw__check {
    animation: none !important;
  }
}

// .is-demo 자동 순환 (실제 클릭이 오면 멈춘다, 8줄)
// 1번은 이미 checked 라 첫 발화가 같은 항목을 다시 찍는 무동작이었다 — i=1 로 시작 + 즉시 1회 실행해
// 로드 직후(렌더 캡처 구간)에도 실제 스프링 오버슛이 한 번은 반드시 보이게 한다
var cw = document.querySelector('.cw');
var inputs = cw.querySelectorAll('.cw__input'); var i = 1;
function cwCycle() { inputs[i % inputs.length].checked = true; i++; }
cwCycle();
var t = setInterval(cwCycle, 600);
inputs.forEach(function (el) { el.addEventListener('pointerdown', function () { cw.classList.remove('is-demo'); clearInterval(t); }); });

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

export type Swatch = { value: string; color: string; label: string };
export type ColorSwatchGridCheckSelectProps = {
  legend?: string;
  swatches?: Swatch[];
  duration?: number;
  easing?: string;
  checkColor?: string;
};

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

export default function ColorSwatchGridCheckSelect({
  legend = "Color selection",
  swatches = [
    { value: "1", color: "#2f6df6", label: "Color 1" },
    { value: "2", color: "#ffd23f", label: "Color 2" },
    { value: "3", color: "#17141a", label: "Color 3" },
    { value: "4", color: "#c2361a", label: "Color 4" },
    { value: "5", color: "#fff7e6", label: "Color 5" },
    { value: "6", color: "#ff4d1f", label: "Color 6" },
  ],
  duration = 220,
  easing = "cubic-bezier(.2,1.4,.4,1)",
  checkColor = "#fff7e6",
}: ColorSwatchGridCheckSelectProps) {
  const [value, setValue] = useState(swatches[0]?.value);
  const vars: Vars = { "--duration": `${duration}ms`, "--easing": easing, "--check": checkColor };

  return (
    <fieldset className={styles.cw} style={vars}>
      <legend className={styles.srOnly}>{legend}</legend>
      {swatches.map((s) => (
        <label key={s.value} className={styles.cell}>
          <input
            type="radio"
            name="swatch"
            className={styles.srInput}
            checked={value === s.value}
            onChange={() => setValue(s.value)}
            aria-label={s.label}
          />
          <span className={styles.swatch} style={{ background: s.color }} />
          <span className={styles.check} data-checked={value === s.value} aria-hidden="true">
            <svg className={styles.checkIcon} viewBox="0 0 256 256">
              <g fill="currentColor"><path d="M232 56v144a16 16 0 0 1-16 16H40a16 16 0 0 1-16-16V56a16 16 0 0 1 16-16h176a16 16 0 0 1 16 16" opacity=".2" /><path d="m205.66 85.66l-96 96a8 8 0 0 1-11.32 0l-40-40a8 8 0 0 1 11.32-11.32L104 164.69l90.34-90.35a8 8 0 0 1 11.32 11.32" /></g>
            </svg>
          </span>
        </label>
      ))}
    </fieldset>
  );
}