05Kiểu chọn thẻ card

<main class="stage">
  <fieldset class="cards is-demo">
    <legend class="sr-only">Chọn gói</legend>
    <label class="card">
      <input type="radio" name="plan" class="sr-input" checked>
      <span class="card__badge" aria-hidden="true"><svg viewBox="0 0 24 24"><path d="M5 12.5 L10 17.5 L19 7" /></svg></span>
      <span class="card__title">Cơ bản</span>
    </label>
    <label class="card">
      <input type="radio" name="plan" class="sr-input">
      <span class="card__badge" aria-hidden="true"><svg viewBox="0 0 24 24"><path d="M5 12.5 L10 17.5 L19 7" /></svg></span>
      <span class="card__title">Pro</span>
    </label>
    <label class="card">
      <input type="radio" name="plan" class="sr-input">
      <span class="card__badge" aria-hidden="true"><svg viewBox="0 0 24 24"><path d="M5 12.5 L10 17.5 L19 7" /></svg></span>
      <span class="card__title">Team</span>
    </label>
  </fieldset>
</main>

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

// ── 변수 3개 ──────────────────────────────
$duration: $dur-base;
$easing: $ease-out;
$color: $subject-blue;

// ── 데모 무대 ───────────────────────────────
@include stage($stage-ink);

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

.cards { display: flex; gap: clamp(8px, 2.4vw, 12px); border: 0; margin: 0; padding: 0; }
.card {
  position: relative; display: flex; flex-direction: column; align-items: center; gap: 8px;
  padding: clamp(10px, 3vw, 14px) clamp(12px, 3.6vw, 18px);
  border-radius: $r-card; border: 2px solid rgba($subject-cream, .22); background: rgba($subject-cream, .06);
  cursor: pointer; transition: border-color $duration $easing, background $duration $easing;
}
.card:has(.sr-input:checked) { border-color: $color; background: rgba($subject-cream, .14); }
.card__badge {
  width: 22px; height: 22px; border-radius: 50%; border: 2px solid rgba($subject-cream, .4);
  display: grid; place-items: center; transition: border-color $duration $easing, background $duration $easing;
}
.card__badge svg {
  width: 13px; height: 13px; fill: none; stroke: $subject-cream; stroke-width: 2.4;
  stroke-linecap: round; stroke-linejoin: round; opacity: 0; transform: scale(.4);
  transition: opacity $duration $easing, transform $duration $easing;
}
.card:has(.sr-input:checked) .card__badge { border-color: $color; background: $color; }
.card:has(.sr-input:checked) .card__badge svg { opacity: 1; transform: scale(1); stroke: $stage-ink; }
.card__title { font-weight: 700; font-size: clamp(12px, 3.4vw, 14px); line-height: 1; font-family: inherit; color: $subject-cream; }
.sr-input:focus-visible ~ .card__badge { box-shadow: 0 0 0 3px rgba($subject-cream, .5); }

@media (prefers-reduced-motion: reduce) {
  // 접근성: 움직임 줄이기 설정이면 트랜지션을 즉시 끝낸다
  .card, .card__badge, .card__badge svg { transition-duration: 1ms !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);
}

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

.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;
}

.cards {
  display: flex;
  gap: clamp(8px, 2.4vw, 12px);
  border: 0;
  margin: 0;
  padding: 0;
}

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: clamp(10px, 3vw, 14px) clamp(12px, 3.6vw, 18px);
  border-radius: 16px;
  border: 2px solid rgba(255, 247, 230, 0.22);
  background: rgba(255, 247, 230, 0.06);
  cursor: pointer;
  transition: border-color 300ms ease-out, background 300ms ease-out;
}

.card:has(.sr-input:checked) {
  border-color: #2f6df6;
  background: rgba(255, 247, 230, 0.14);
}

.card__badge {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid rgba(255, 247, 230, 0.4);
  display: grid;
  place-items: center;
  transition: border-color 300ms ease-out, background 300ms ease-out;
}

.card__badge svg {
  width: 13px;
  height: 13px;
  fill: none;
  stroke: #fff7e6;
  stroke-width: 2.4;
  stroke-linecap: round;
  stroke-linejoin: round;
  opacity: 0;
  transform: scale(0.4);
  transition: opacity 300ms ease-out, transform 300ms ease-out;
}

.card:has(.sr-input:checked) .card__badge {
  border-color: #2f6df6;
  background: #2f6df6;
}

.card:has(.sr-input:checked) .card__badge svg {
  opacity: 1;
  transform: scale(1);
  stroke: #17141a;
}

.card__title {
  font-weight: 700;
  font-size: clamp(12px, 3.4vw, 14px);
  line-height: 1;
  font-family: inherit;
  color: #fff7e6;
}

.sr-input:focus-visible ~ .card__badge {
  box-shadow: 0 0 0 3px rgba(255, 247, 230, 0.5);
}

@media (prefers-reduced-motion: reduce) {
  .card, .card__badge, .card__badge svg {
    transition-duration: 1ms !important;
  }
}

// .is-demo 데모용 자동 순환. 실제로는 클릭이 :checked 를 바꾼다 (6줄)
document.querySelectorAll('.is-demo').forEach(function (grp) {
  var inputs = grp.querySelectorAll('.sr-input'); var i = 0;
  var t = function () { inputs[i % inputs.length].checked = true; i++; };
  t(); setInterval(t, 500);
});

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

export type CardSelectOption = { value: string; title: string };
export type CardSelectProps = {
  legend?: string;
  options?: CardSelectOption[];
  duration?: number;
  easing?: string;
  color?: string;
};

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

export default function CardSelect({
  legend = "Choose a plan",
  options = [
    { value: "basic", title: "Basic" },
    { value: "pro", title: "Pro" },
    { value: "team", title: "Team" },
  ],
  duration = 300,
  easing = "ease-out",
  color = "#2f6df6",
}: CardSelectProps) {
  const [value, setValue] = useState(options[0]?.value);
  const vars: Vars = { "--duration": `${duration}ms`, "--easing": easing, "--color": color };

  return (
    <fieldset className={styles.cards} style={vars}>
      <legend className={styles.srOnly}>{legend}</legend>
      {options.map((o) => (
        <label className={styles.card} key={o.value} data-checked={value === o.value}>
          <input
            type="radio"
            name="card-select"
            className={styles.srInput}
            checked={value === o.value}
            onChange={() => setValue(o.value)}
          />
          <span className={styles.badge} aria-hidden="true">
            {value === o.value ? "✓" : ""}
          </span>
          <span className={styles.title}>{o.title}</span>
        </label>
      ))}
    </fieldset>
  );
}