04一つずつ埋まる要件チェックリスト

<main class="stage">
  <div class="rq is-demo" id="rq">
    <div class="rq__field">
      <input class="rq__input" id="rq-input" type="text" autocomplete="off" aria-describedby="rq-list" placeholder="パスワードを作ってください">
      <span class="rq__ghost" aria-hidden="true">••••••••</span>
    </div>
    <ul class="rq__list" id="rq-list">
      <li class="rq__row" data-rule="0">
        <span class="rq__mark" aria-hidden="true"><svg viewBox="0 0 256 256" width="12" height="12"><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>
        <span class="rq__txt">8文字より長く</span>
      </li>
      <li class="rq__row" data-rule="1">
        <span class="rq__mark" aria-hidden="true"><svg viewBox="0 0 256 256" width="12" height="12"><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>
        <span class="rq__txt">数字を1つ入れる</span>
      </li>
      <li class="rq__row" data-rule="2">
        <span class="rq__mark" aria-hidden="true"><svg viewBox="0 0 256 256" width="12" height="12"><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>
        <span class="rq__txt">記号を1つ入れる</span>
      </li>
    </ul>
  </div>
</main>

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

$duration: $dur-quick;
$easing: $ease-pop;
$color: $subject-blue;

@include stage($stage-paper);

$ok: #479076;
$off: rgba(23, 20, 26, .72);   // 흐린 글자 알파 하한 — 흰 면 위 7.27:1

.rq {
  box-sizing: border-box;
  width: min(300px, 86vw);
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
}

.rq__field { position: relative; }
.rq__input {
  box-sizing: border-box;
  width: 100%; height: 40px;
  padding: 0 $sp-3;
  border: 2px solid rgba(23, 20, 26, .2);
  border-radius: $r-control;
  background: $stage-paper;
  color: $subject-ink;
  font-family: inherit;
  font-size: 14px; line-height: 36px; font-weight: 700;
  letter-spacing: .08em;
  transition: border-color $duration $easing;
}
.rq__input::placeholder { color: rgba(23, 20, 26, .36); font-weight: 600; letter-spacing: normal; }
.rq__input:focus-visible { outline: 2px solid $color; outline-offset: 2px; }

// 자동 루프에서만 보이는 "쳐 넣는 글자". 진짜 placeholder 와 겹치지 않게 지운다
.rq.is-demo .rq__input::placeholder { color: transparent; }
.rq__ghost {
  position: absolute;
  left: 14px; top: 0;
  color: $subject-ink;
  font-size: 14px; line-height: 40px; font-weight: 700;
  letter-spacing: .08em;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
}

// ── 요건 세 줄 ───────────────────────────────────────
.rq__list {
  margin: $sp-3 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: $sp-2;
}
.rq__row {
  display: flex;
  align-items: center;
  gap: $sp-2;
  color: $off;
  font-size: 12px; line-height: 16px; font-weight: 700;
  transition: color $duration $easing;
}
.rq__row.is-pass { color: $ok; }

// 체크는 동그라미 안에서 튀어나온다 — 아이콘은 Phosphor Duotone SVG 를 그대로 인라인
.rq__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  width: 18px; height: 18px;
  border: 2px solid currentColor;
  border-radius: 50%;
}
.rq__mark > svg {
  transform: scale(0);
  transform-origin: center;
  opacity: 0;
  transition: transform $duration $easing, opacity $duration $easing;
}
.rq__row.is-pass .rq__mark > svg { transform: scale(1); opacity: 1; }

// ── 자동 루프 (2s) ────────────────────────────────────
// 0~20% 짧은 값(전부 미달) → 24% 길이 통과 → 40% 숫자 통과 → 56% 기호 통과(세 줄 다 켜진 장면이 poster)
// → 74·78·82% 한 줄씩 흩어서 끄고 86% 되감기. 복귀를 한 프레임에 몰면 그 프레임이 poster 로 뽑힌다.
.rq.is-demo .rq__ghost {
  opacity: 1;
  animation-name: rq-type;
  animation-duration: $dur-loop;
  animation-timing-function: steps(1, end);
  animation-iteration-count: infinite;
}
.rq.is-demo .rq__input {
  transition: none;
  animation-name: rq-input;
  animation-duration: $dur-loop;
  animation-timing-function: steps(1, end);
  animation-iteration-count: infinite;
}
.rq.is-demo .rq__row {
  transition: none;
  animation-duration: $dur-loop;
  animation-timing-function: steps(1, end);
  animation-iteration-count: infinite;
}
.rq.is-demo .rq__mark > svg {
  transition: none;
  animation-duration: $dur-loop;
  animation-timing-function: $easing;
  animation-iteration-count: infinite;
}
.rq.is-demo .rq__row[data-rule="0"] { animation-name: rq-row-0; }
.rq.is-demo .rq__row[data-rule="1"] { animation-name: rq-row-1; }
.rq.is-demo .rq__row[data-rule="2"] { animation-name: rq-row-2; }
.rq.is-demo .rq__row[data-rule="0"] .rq__mark > svg { animation-name: rq-pop-0; }
.rq.is-demo .rq__row[data-rule="1"] .rq__mark > svg { animation-name: rq-pop-1; }
.rq.is-demo .rq__row[data-rule="2"] .rq__mark > svg { animation-name: rq-pop-2; }

@keyframes rq-type {
  0%   { clip-path: inset(0 62% 0 0); }
  24%  { clip-path: inset(0 38% 0 0); }
  40%  { clip-path: inset(0 20% 0 0); }
  56%  { clip-path: inset(0 0 0 0); }
  86%  { clip-path: inset(0 62% 0 0); }
  100% { clip-path: inset(0 62% 0 0); }
}
@keyframes rq-input {
  0%   { border-color: rgba(23, 20, 26, .2); }
  56%  { border-color: $ok; }
  82%  { border-color: rgba(23, 20, 26, .2); }
  100% { border-color: rgba(23, 20, 26, .2); }
}
@keyframes rq-row-0 { 0% { color: $off; } 24% { color: $ok; } 74% { color: $off; } 100% { color: $off; } }
@keyframes rq-row-1 { 0% { color: $off; } 40% { color: $ok; } 78% { color: $off; } 100% { color: $off; } }
@keyframes rq-row-2 { 0% { color: $off; } 56% { color: $ok; } 82% { color: $off; } 100% { color: $off; } }
@keyframes rq-pop-0 {
  0%   { transform: scale(0); opacity: 0; }
  24%  { transform: scale(0); opacity: 0; }
  30%  { transform: scale(1.3); opacity: 1; }
  34%  { transform: scale(1); opacity: 1; }
  74%  { transform: scale(1); opacity: 1; }
  75%  { transform: scale(0); opacity: 0; }
  100% { transform: scale(0); opacity: 0; }
}
@keyframes rq-pop-1 {
  0%   { transform: scale(0); opacity: 0; }
  40%  { transform: scale(0); opacity: 0; }
  46%  { transform: scale(1.3); opacity: 1; }
  50%  { transform: scale(1); opacity: 1; }
  78%  { transform: scale(1); opacity: 1; }
  79%  { transform: scale(0); opacity: 0; }
  100% { transform: scale(0); opacity: 0; }
}
@keyframes rq-pop-2 {
  0%   { transform: scale(0); opacity: 0; }
  56%  { transform: scale(0); opacity: 0; }
  62%  { transform: scale(1.3); opacity: 1; }
  66%  { transform: scale(1); opacity: 1; }
  82%  { transform: scale(1); opacity: 1; }
  83%  { transform: scale(0); opacity: 0; }
  100% { transform: scale(0); opacity: 0; }
}

// 320×200 — 무대 여백을 뺀 174px 안에 들어가도록 간격을 내린다(올리지 않는다)
@media (max-width: 360px) {
  .rq__input { height: 36px; line-height: 32px; }
  .rq__ghost { line-height: 36px; }
  .rq__list { margin-top: $sp-2; gap: $sp-1; }
}

@media (prefers-reduced-motion: reduce) {
  .rq.is-demo .rq__ghost,
  .rq.is-demo .rq__input,
  .rq.is-demo .rq__row,
  .rq.is-demo .rq__mark > svg { animation: none !important; }
  .rq.is-demo .rq__ghost { opacity: 1; clip-path: inset(0 0 0 0); }
  .rq.is-demo .rq__input { border-color: $ok; }
  .rq.is-demo .rq__row { color: $ok; }
  .rq.is-demo .rq__mark > svg { transform: scale(1); opacity: 1; }
  .rq__row, .rq__input, .rq__mark > svg { transition: none; }
}

html, body {
  margin: 0;
  overflow: hidden;
}

.stage {
  box-sizing: border-box;
  min-height: 100vh;
  display: grid;
  place-items: center;
  margin: 0;
  background: #ffffff;
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  padding: clamp(8px, 4vw, 24px);
}

.rq {
  box-sizing: border-box;
  width: min(300px, 86vw);
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
}

.rq__field {
  position: relative;
}

.rq__input {
  box-sizing: border-box;
  width: 100%;
  height: 40px;
  padding: 0 12px;
  border: 2px solid rgba(23, 20, 26, 0.2);
  border-radius: 12px;
  background: #ffffff;
  color: #17141a;
  font-family: inherit;
  font-size: 14px;
  line-height: 36px;
  font-weight: 700;
  letter-spacing: 0.08em;
  transition: border-color 220ms cubic-bezier(0.2, 1.4, 0.4, 1);
}

.rq__input::placeholder {
  color: rgba(23, 20, 26, 0.36);
  font-weight: 600;
  letter-spacing: normal;
}

.rq__input:focus-visible {
  outline: 2px solid #2f6df6;
  outline-offset: 2px;
}

.rq.is-demo .rq__input::placeholder {
  color: transparent;
}

.rq__ghost {
  position: absolute;
  left: 14px;
  top: 0;
  color: #17141a;
  font-size: 14px;
  line-height: 40px;
  font-weight: 700;
  letter-spacing: 0.08em;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
}

.rq__list {
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.rq__row {
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(23, 20, 26, 0.72);
  font-size: 12px;
  line-height: 16px;
  font-weight: 700;
  transition: color 220ms cubic-bezier(0.2, 1.4, 0.4, 1);
}

.rq__row.is-pass {
  color: #479076;
}

.rq__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  border: 2px solid currentColor;
  border-radius: 50%;
}

.rq__mark > svg {
  transform: scale(0);
  transform-origin: center;
  opacity: 0;
  transition: transform 220ms cubic-bezier(0.2, 1.4, 0.4, 1), opacity 220ms cubic-bezier(0.2, 1.4, 0.4, 1);
}

.rq__row.is-pass .rq__mark > svg {
  transform: scale(1);
  opacity: 1;
}

.rq.is-demo .rq__ghost {
  opacity: 1;
  animation-name: rq-type;
  animation-duration: 2s;
  animation-timing-function: steps(1, end);
  animation-iteration-count: infinite;
}

.rq.is-demo .rq__input {
  transition: none;
  animation-name: rq-input;
  animation-duration: 2s;
  animation-timing-function: steps(1, end);
  animation-iteration-count: infinite;
}

.rq.is-demo .rq__row {
  transition: none;
  animation-duration: 2s;
  animation-timing-function: steps(1, end);
  animation-iteration-count: infinite;
}

.rq.is-demo .rq__mark > svg {
  transition: none;
  animation-duration: 2s;
  animation-timing-function: cubic-bezier(0.2, 1.4, 0.4, 1);
  animation-iteration-count: infinite;
}

.rq.is-demo .rq__row[data-rule="0"] {
  animation-name: rq-row-0;
}

.rq.is-demo .rq__row[data-rule="1"] {
  animation-name: rq-row-1;
}

.rq.is-demo .rq__row[data-rule="2"] {
  animation-name: rq-row-2;
}

.rq.is-demo .rq__row[data-rule="0"] .rq__mark > svg {
  animation-name: rq-pop-0;
}

.rq.is-demo .rq__row[data-rule="1"] .rq__mark > svg {
  animation-name: rq-pop-1;
}

.rq.is-demo .rq__row[data-rule="2"] .rq__mark > svg {
  animation-name: rq-pop-2;
}

@keyframes rq-type {
  0% {
    clip-path: inset(0 62% 0 0);
  }
  24% {
    clip-path: inset(0 38% 0 0);
  }
  40% {
    clip-path: inset(0 20% 0 0);
  }
  56% {
    clip-path: inset(0 0 0 0);
  }
  86% {
    clip-path: inset(0 62% 0 0);
  }
  100% {
    clip-path: inset(0 62% 0 0);
  }
}
@keyframes rq-input {
  0% {
    border-color: rgba(23, 20, 26, 0.2);
  }
  56% {
    border-color: #479076;
  }
  82% {
    border-color: rgba(23, 20, 26, 0.2);
  }
  100% {
    border-color: rgba(23, 20, 26, 0.2);
  }
}
@keyframes rq-row-0 {
  0% {
    color: rgba(23, 20, 26, 0.72);
  }
  24% {
    color: #479076;
  }
  74% {
    color: rgba(23, 20, 26, 0.72);
  }
  100% {
    color: rgba(23, 20, 26, 0.72);
  }
}
@keyframes rq-row-1 {
  0% {
    color: rgba(23, 20, 26, 0.72);
  }
  40% {
    color: #479076;
  }
  78% {
    color: rgba(23, 20, 26, 0.72);
  }
  100% {
    color: rgba(23, 20, 26, 0.72);
  }
}
@keyframes rq-row-2 {
  0% {
    color: rgba(23, 20, 26, 0.72);
  }
  56% {
    color: #479076;
  }
  82% {
    color: rgba(23, 20, 26, 0.72);
  }
  100% {
    color: rgba(23, 20, 26, 0.72);
  }
}
@keyframes rq-pop-0 {
  0% {
    transform: scale(0);
    opacity: 0;
  }
  24% {
    transform: scale(0);
    opacity: 0;
  }
  30% {
    transform: scale(1.3);
    opacity: 1;
  }
  34% {
    transform: scale(1);
    opacity: 1;
  }
  74% {
    transform: scale(1);
    opacity: 1;
  }
  75% {
    transform: scale(0);
    opacity: 0;
  }
  100% {
    transform: scale(0);
    opacity: 0;
  }
}
@keyframes rq-pop-1 {
  0% {
    transform: scale(0);
    opacity: 0;
  }
  40% {
    transform: scale(0);
    opacity: 0;
  }
  46% {
    transform: scale(1.3);
    opacity: 1;
  }
  50% {
    transform: scale(1);
    opacity: 1;
  }
  78% {
    transform: scale(1);
    opacity: 1;
  }
  79% {
    transform: scale(0);
    opacity: 0;
  }
  100% {
    transform: scale(0);
    opacity: 0;
  }
}
@keyframes rq-pop-2 {
  0% {
    transform: scale(0);
    opacity: 0;
  }
  56% {
    transform: scale(0);
    opacity: 0;
  }
  62% {
    transform: scale(1.3);
    opacity: 1;
  }
  66% {
    transform: scale(1);
    opacity: 1;
  }
  82% {
    transform: scale(1);
    opacity: 1;
  }
  83% {
    transform: scale(0);
    opacity: 0;
  }
  100% {
    transform: scale(0);
    opacity: 0;
  }
}
@media (max-width: 360px) {
  .rq__input {
    height: 36px;
    line-height: 32px;
  }
  .rq__ghost {
    line-height: 36px;
  }
  .rq__list {
    margin-top: 8px;
    gap: 4px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .rq.is-demo .rq__ghost,
  .rq.is-demo .rq__input,
  .rq.is-demo .rq__row,
  .rq.is-demo .rq__mark > svg {
    animation: none !important;
  }
  .rq.is-demo .rq__ghost {
    opacity: 1;
    clip-path: inset(0 0 0 0);
  }
  .rq.is-demo .rq__input {
    border-color: #479076;
  }
  .rq.is-demo .rq__row {
    color: #479076;
  }
  .rq.is-demo .rq__mark > svg {
    transform: scale(1);
    opacity: 1;
  }
  .rq__row, .rq__input, .rq__mark > svg {
    transition: none;
  }
}

// 실제 동작: 요건마다 자기 정규식을 갖고, 한 글자 칠 때마다 통과한 줄만 확정 색으로 넘어간다.
var rq = document.getElementById('rq');
var rqInput = document.getElementById('rq-input');
var rqRows = [].slice.call(document.querySelectorAll('.rq__row'));
var RQ_RULES = [/^.{9,}$/, /\d/, /[^\w\s]/];
function rqPaint() {
  rq.classList.remove('is-demo'); // 사람이 손대면 자동 루프를 멈춘다
  var done = 0;
  rqRows.forEach(function (row, i) {
    var pass = RQ_RULES[i].test(rqInput.value);
    row.classList.toggle('is-pass', pass);
    if (pass) done += 1;
  });
  rqInput.setAttribute('aria-invalid', done === RQ_RULES.length ? 'false' : 'true');
}
rqInput.addEventListener('input', rqPaint);
rqInput.addEventListener('focus', rqPaint);

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

export type Requirement = { text: string; test: RegExp };

export type RequirementChecklistProps = {
  placeholder?: string;
  rules?: Requirement[];
  /** 자동 재생 루프 (갤러리용). 사람이 손대면 꺼진다 */
  demo?: boolean;
  duration?: number;
  easing?: string;
  color?: string;
};

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

const DEFAULT_RULES: Requirement[] = [
  { text: "Over eight characters", test: /^.{9,}$/ },
  { text: "Include a digit", test: /\d/ },
  { text: "Include a symbol", test: /[^\w\s]/ },
];

function CheckIcon() {
  return (
    <svg viewBox="0 0 256 256" width="12" height="12" aria-hidden="true">
      <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>
  );
}

export default function RequirementChecklist({
  placeholder = "Create a password",
  rules = DEFAULT_RULES,
  demo = true,
  duration = 220,
  easing = "cubic-bezier(.2,1.4,.4,1)",
  color = "#2f6df6",
}: RequirementChecklistProps) {
  const [value, setValue] = useState("");
  const [live, setLive] = useState(demo);

  const passed = rules.map((r) => r.test.test(value));
  const allDone = passed.every(Boolean);
  const vars: Vars = { "--duration": `${duration}ms`, "--easing": easing, "--color": color };

  return (
    <div className={`${styles.root} ${live ? styles.isDemo : ""}`} style={vars}>
      <div className={styles.field}>
        <input
          className={styles.input}
          id="rq-input"
          type="text"
          autoComplete="off"
          placeholder={placeholder}
          aria-describedby="rq-list"
          aria-invalid={!allDone}
          value={value}
          onChange={(e: ChangeEvt) => { setValue(e.target.value); setLive(false); }}
          onFocus={() => setLive(false)}
        />
        <span className={styles.ghost} aria-hidden="true">••••••••</span>
      </div>
      <ul className={styles.list} id="rq-list">
        {rules.map((r, i) => (
          <li key={r.text} className={`${styles.row} ${passed[i] ? styles.isPass : ""}`} data-rule={i}>
            <span className={styles.mark} aria-hidden="true"><CheckIcon /></span>
            <span className={styles.txt}>{r.text}</span>
          </li>
        ))}
      </ul>
    </div>
  );
}