06A row of switches for new-device alerts

<main class="stage">
  <section class="al is-demo" data-saved="false">
    <div class="al__card">
      <p class="al__head">New device sign-in alerts</p>

      <ul class="al__list">
        <li class="al__row" data-row="mail">
          <span class="al__ic" aria-hidden="true"><svg viewBox="0 0 256 256" width="20" height="20"><g fill="currentColor"><path d="m224 56l-96 88l-96-88Z" opacity=".2"/><path d="M224 48H32a8 8 0 0 0-8 8v136a16 16 0 0 0 16 16h176a16 16 0 0 0 16-16V56a8 8 0 0 0-8-8m-20.57 16L128 133.15L52.57 64ZM216 192H40V74.19l82.59 75.71a8 8 0 0 0 10.82 0L216 74.19z"/></g></svg></span>
          <span class="al__lab" id="al-lab-mail">By email</span>
          <button class="al__sw" type="button" role="switch" aria-checked="true" aria-labelledby="al-lab-mail" data-sw="mail">
            <span class="al__knob" aria-hidden="true"></span>
          </button>
        </li>

        <li class="al__row" data-row="push">
          <span class="al__ic" aria-hidden="true"><svg viewBox="0 0 256 256" width="20" height="20"><g fill="currentColor"><path d="M208 192H48a8 8 0 0 1-6.88-12C47.71 168.6 56 139.81 56 104a72 72 0 0 1 144 0c0 35.82 8.3 64.6 14.9 76a8 8 0 0 1-6.9 12" opacity=".2"/><path d="M221.8 175.94c-5.55-9.56-13.8-36.61-13.8-71.94a80 80 0 1 0-160 0c0 35.34-8.26 62.38-13.81 71.94A16 16 0 0 0 48 200h40.81a40 40 0 0 0 78.38 0H208a16 16 0 0 0 13.8-24.06M128 216a24 24 0 0 1-22.62-16h45.24A24 24 0 0 1 128 216m-80-32c7.7-13.24 16-43.92 16-80a64 64 0 1 1 128 0c0 36.05 8.28 66.73 16 80Z"/></g></svg></span>
          <span class="al__lab" id="al-lab-push">By push</span>
          <button class="al__sw" type="button" role="switch" aria-checked="false" aria-labelledby="al-lab-push" data-sw="push">
            <span class="al__knob" aria-hidden="true"></span>
          </button>
        </li>

        <li class="al__row" data-row="sms">
          <span class="al__ic" aria-hidden="true"><svg viewBox="0 0 256 256" width="20" height="20"><g fill="currentColor"><path d="M224 128a96 96 0 0 1-144.07 83.11l-37.39 12.47a8 8 0 0 1-10.12-10.12l12.47-37.39A96 96 0 1 1 224 128" opacity=".2"/><path d="M128 24a104 104 0 0 0-91.82 152.88l-11.35 34.05a16 16 0 0 0 20.24 20.24l34.05-11.35A104 104 0 1 0 128 24m0 192a87.87 87.87 0 0 1-44.06-11.81a8 8 0 0 0-4-1.08a7.9 7.9 0 0 0-2.53.42L40 216l12.47-37.4a8 8 0 0 0-.66-6.54A88 88 0 1 1 128 216m40-104a8 8 0 0 1-8 8H96a8 8 0 0 1 0-16h64a8 8 0 0 1 8 8m0 32a8 8 0 0 1-8 8H96a8 8 0 0 1 0-16h64a8 8 0 0 1 8 8"/></g></svg></span>
          <span class="al__lab" id="al-lab-sms">By text</span>
          <button class="al__sw" type="button" role="switch" aria-checked="false" aria-labelledby="al-lab-sms" data-sw="sms">
            <span class="al__knob" aria-hidden="true"></span>
          </button>
        </li>
      </ul>

      <p class="al__saved" id="al-saved" role="status" aria-live="polite">
        <span class="al__saved-ic" aria-hidden="true"><svg viewBox="0 0 256 256" width="16" height="16"><g fill="currentColor"><path d="M224 128a96 96 0 1 1-96-96a96 96 0 0 1 96 96" opacity=".2"/><path d="M173.66 98.34a8 8 0 0 1 0 11.32l-56 56a8 8 0 0 1-11.32 0l-24-24a8 8 0 0 1 11.32-11.32L112 148.69l50.34-50.35a8 8 0 0 1 11.32 0M232 128A104 104 0 1 1 128 24a104.11 104.11 0 0 1 104 104m-16 0a88 88 0 1 0-88 88a88.1 88.1 0 0 0 88-88"/></g></svg></span>
        <span class="al__saved-t">Saved</span>
      </p>
    </div>
  </section>
</main>

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

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

@include stage($stage-yellow);

.al {
  box-sizing: border-box;
  width: min(300px, 88vw);
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  color: $subject-ink;
}

.al__card {
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  gap: $sp-3;
  padding: $sp-4;
  border-radius: $r-card;
  background-color: $stage-paper;
  box-shadow: $shadow-raised;
}

.al__head {
  margin: 0;
  height: 18px;
  font-size: 13px;
  line-height: 18px;
  font-weight: 800;
  letter-spacing: .01em;
}

.al__list {
  display: flex;
  flex-direction: column;
  gap: $sp-1;
  margin: 0;
  padding: 0;
  list-style: none;
}

.al__row {
  display: flex;
  align-items: center;
  gap: $sp-2;
  padding: 0 $sp-2;
  height: 32px;
  border-radius: $r-sm;
  background-color: transparent;
}
.al__ic {
  display: inline-flex;
  color: rgba($subject-ink, .45);
}
.al__ic svg { display: block; }
.al__lab {
  flex-grow: 1;
  font-size: 12px;
  line-height: 18px;
  font-weight: 600;
  white-space: nowrap;
}

// ── 진짜 role="switch" 버튼 ──────────────────────────────
.al__sw {
  position: relative;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  width: 40px;
  height: 22px;
  border: 0;
  border-radius: $r-pill;
  background-color: rgba($subject-ink, .18);
  cursor: pointer;
  transition: background-color $duration $easing;
}
.al__sw:focus-visible { outline: 3px solid $subject-ink; outline-offset: 2px; }
.al__knob {
  position: absolute;
  left: 2px;
  top: 2px;
  display: block;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background-color: $stage-paper;
  box-shadow: $shadow-press;
  transform: translateX(0);
  transition: transform $duration $easing;
}

// ── 사람이 조작한 정적 상태 — 루프를 껐을 때도 화면이 비지 않는다 ──
.al__sw[aria-checked="true"] { background-color: $color; }
.al__sw[aria-checked="true"] .al__knob { transform: translateX(18px); }
.al:not(.is-demo) .al__row:has(.al__sw[aria-checked="true"]) { background-color: rgba($color, .16); }
.al:not(.is-demo) .al__row:has(.al__sw[aria-checked="true"]) .al__ic { color: $color; }

.al__saved {
  display: flex;
  align-items: center;
  gap: $sp-1;
  margin: 0;
  height: 18px;
  color: $subject-ink;
  opacity: 0;
}
.al__saved-ic { display: inline-flex; color: $subject-mint; }
.al__saved-ic svg { display: block; }
.al__saved-t {
  font-size: 12px;
  line-height: 18px;
  font-weight: 700;
}
.al:not(.is-demo)[data-saved="true"] .al__saved { opacity: 1; }

// ── 자동 루프 (2s): 메일은 켜진 채로, 푸시 20.83%, 문자 58.33%. 켠 것은 되돌리지 않는다 ──
.al.is-demo .al__sw,
.al.is-demo .al__row {
  animation-duration: $dur-loop;
  animation-timing-function: steps(1, end);
  animation-iteration-count: infinite;
}
.al.is-demo .al__sw[data-sw="mail"] { animation-name: al-track-on; }
.al.is-demo .al__sw[data-sw="push"] { animation-name: al-track-push; }
.al.is-demo .al__sw[data-sw="sms"] { animation-name: al-track-sms; }
.al.is-demo .al__row[data-row="mail"] { animation-name: al-row-on; }
.al.is-demo .al__row[data-row="push"] { animation-name: al-row-push; }
.al.is-demo .al__row[data-row="sms"] { animation-name: al-row-sms; }

@keyframes al-track-on {
  0%     { background-color: $color; }
  100%   { background-color: $color; }
}
@keyframes al-track-push {
  0%     { background-color: rgba($subject-ink, .18); }
  20.83% { background-color: $color; }
  100%   { background-color: $color; }
}
@keyframes al-track-sms {
  0%     { background-color: rgba($subject-ink, .18); }
  58.33% { background-color: $color; }
  100%   { background-color: $color; }
}
@keyframes al-row-on {
  0%     { background-color: rgba($color, .16); }
  100%   { background-color: rgba($color, .16); }
}
// 푸시는 스위치가 먼저 켜지고(20.83%) 줄이 뒤따라 물든다(29.17%) — 두 프레임으로 나눠 문자 켜짐이 대표 장면이 되게
@keyframes al-row-push {
  0%     { background-color: transparent; }
  29.17% { background-color: rgba($color, .16); }
  100%   { background-color: rgba($color, .16); }
}
@keyframes al-row-sms {
  0%     { background-color: transparent; }
  58.33% { background-color: rgba($color, .16); }
  100%   { background-color: rgba($color, .16); }
}

// 손잡이는 미끄러진다 — 컷만으로는 움직인 프레임이 안 찬다
.al.is-demo .al__knob {
  animation-duration: $dur-loop;
  animation-timing-function: $easing;
  animation-iteration-count: infinite;
}
.al.is-demo .al__sw[data-sw="mail"] .al__knob { animation-name: al-knob-on; }
.al.is-demo .al__sw[data-sw="push"] .al__knob { animation-name: al-knob-push; }
.al.is-demo .al__sw[data-sw="sms"] .al__knob { animation-name: al-knob-sms; }

@keyframes al-knob-on {
  0%     { transform: translateX(18px); }
  100%   { transform: translateX(18px); }
}
@keyframes al-knob-push {
  0%     { transform: translateX(0); }
  20.83% { transform: translateX(0); }
  33.33% { transform: translateX(18px); }
  100%   { transform: translateX(18px); }
}
@keyframes al-knob-sms {
  0%     { transform: translateX(0); }
  58.33% { transform: translateX(0); }
  70.83% { transform: translateX(18px); }
  100%   { transform: translateX(18px); }
}

// 켜진 줄은 아이콘이 브랜드 색으로 갈리고 한 번 튄다
.al.is-demo .al__ic {
  animation-duration: $dur-loop, $dur-loop;
  animation-iteration-count: infinite, infinite;
  animation-timing-function: steps(1, end), $ease-pop;
}
.al.is-demo .al__row[data-row="mail"] .al__ic { animation-name: al-ic-on, al-pop-none; }
.al.is-demo .al__row[data-row="push"] .al__ic { animation-name: al-ic-push, al-pop-push; }
.al.is-demo .al__row[data-row="sms"] .al__ic { animation-name: al-ic-sms, al-pop-sms; }

@keyframes al-ic-on {
  0%     { color: $color; }
  100%   { color: $color; }
}
@keyframes al-ic-push {
  0%     { color: rgba($subject-ink, .45); }
  29.17% { color: $color; }
  100%   { color: $color; }
}
@keyframes al-ic-sms {
  0%     { color: rgba($subject-ink, .45); }
  58.33% { color: $color; }
  100%   { color: $color; }
}
@keyframes al-pop-none {
  0%     { transform: scale(1); }
  100%   { transform: scale(1); }
}
@keyframes al-pop-push {
  0%     { transform: scale(1); }
  29.17% { transform: scale(1); }
  33.33% { transform: scale(1.35); }
  41.67% { transform: scale(1); }
  100%   { transform: scale(1); }
}
@keyframes al-pop-sms {
  0%     { transform: scale(1); }
  58.33% { transform: scale(1); }
  62.5%  { transform: scale(1.35); }
  70.83% { transform: scale(1); }
  100%   { transform: scale(1); }
}

// 저장 줄은 33.33% 에 켜지고 사라지지 않는다 — 나타남은 컷, 밀어올림만 부드럽게
.al.is-demo .al__saved {
  animation-name: al-saved-cut, al-saved-lift;
  animation-duration: $dur-loop, $dur-loop;
  animation-timing-function: steps(1, end), $easing;
  animation-iteration-count: infinite, infinite;
}
@keyframes al-saved-cut {
  0%     { opacity: 0; }
  33.33% { opacity: 1; }
  100%   { opacity: 1; }
}
@keyframes al-saved-lift {
  0%     { transform: translateY(6px) scale(1); }
  33.33% { transform: translateY(6px) scale(1); }
  41.67% { transform: translateY(0) scale(1); }
  58.33% { transform: translateY(0) scale(1); }
  62.5%  { transform: translateY(0) scale(1.08); }
  70.83% { transform: translateY(0) scale(1); }
  100%   { transform: translateY(0) scale(1); }
}

@media (max-width: 340px) {
  .al__card { gap: $sp-2; padding: $sp-2; }
  .al__head { height: 14px; font-size: 11px; line-height: 14px; }
  .al__row { height: 26px; padding: 0 $sp-1; gap: $sp-1; }
  .al__lab { font-size: 10px; line-height: 14px; }
  .al__sw { width: 32px; height: 18px; }
  .al__knob { width: 14px; height: 14px; }
  .al__sw[aria-checked="true"] .al__knob { transform: translateX(14px); }
  .al__saved { height: 14px; }
  .al__saved-t { font-size: 10px; line-height: 14px; }

  // 좁은 폭에서는 트랙이 32px 이라 손잡이 이동거리도 같이 줄인다 (18 → 14)
  @keyframes al-knob-on {
    0%     { transform: translateX(14px); }
    100%   { transform: translateX(14px); }
  }
  @keyframes al-knob-push {
    0%     { transform: translateX(0); }
    20.83% { transform: translateX(0); }
    33.33% { transform: translateX(14px); }
    100%   { transform: translateX(14px); }
  }
  @keyframes al-knob-sms {
    0%     { transform: translateX(0); }
    58.33% { transform: translateX(0); }
    70.83% { transform: translateX(14px); }
    100%   { transform: translateX(14px); }
  }
}

@media (prefers-reduced-motion: reduce) {
  .al.is-demo .al__sw,
  .al.is-demo .al__row,
  .al.is-demo .al__knob,
  .al.is-demo .al__ic,
  .al.is-demo .al__saved { animation: none !important; }
  .al.is-demo .al__sw[data-sw="mail"] { background-color: $color !important; }
  .al.is-demo .al__sw[data-sw="mail"] .al__knob { transform: translateX(18px) !important; }
  .al.is-demo .al__row[data-row="mail"] { background-color: rgba($color, .16) !important; }
  .al.is-demo .al__row[data-row="mail"] .al__ic { color: $color !important; }
  .al.is-demo .al__saved { opacity: 1 !important; transform: translateY(0) !important; }
  .al__sw,
  .al__knob { transition: none !important; }
}

// 좁은 폭 + reduced-motion 이 겹치면 트랙은 32px 인데 위 블록의 18px 이 그대로 남는다 (2px 넘침)
@media (max-width: 340px) and (prefers-reduced-motion: reduce) {
  .al.is-demo .al__sw[data-sw="mail"] .al__knob { transform: translateX(14px) !important; }
}

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);
}

.al {
  box-sizing: border-box;
  width: min(300px, 88vw);
  font-family: -apple-system, "Segoe UI", "Noto Sans KR", sans-serif;
  color: #17141a;
}

.al__card {
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 16px;
  border-radius: 16px;
  background-color: #ffffff;
  box-shadow: 0 14px 24px rgba(23, 20, 26, 0.32);
}

.al__head {
  margin: 0;
  height: 18px;
  font-size: 13px;
  line-height: 18px;
  font-weight: 800;
  letter-spacing: 0.01em;
}

.al__list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.al__row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 8px;
  height: 32px;
  border-radius: 8px;
  background-color: transparent;
}

.al__ic {
  display: inline-flex;
  color: rgba(23, 20, 26, 0.45);
}

.al__ic svg {
  display: block;
}

.al__lab {
  flex-grow: 1;
  font-size: 12px;
  line-height: 18px;
  font-weight: 600;
  white-space: nowrap;
}

.al__sw {
  position: relative;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  width: 40px;
  height: 22px;
  border: 0;
  border-radius: 999px;
  background-color: rgba(23, 20, 26, 0.18);
  cursor: pointer;
  transition: background-color 220ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.al__sw:focus-visible {
  outline: 3px solid #17141a;
  outline-offset: 2px;
}

.al__knob {
  position: absolute;
  left: 2px;
  top: 2px;
  display: block;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background-color: #ffffff;
  box-shadow: 0 6px 12px rgba(23, 20, 26, 0.32);
  transform: translateX(0);
  transition: transform 220ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.al__sw[aria-checked=true] {
  background-color: #2f6df6;
}

.al__sw[aria-checked=true] .al__knob {
  transform: translateX(18px);
}

.al:not(.is-demo) .al__row:has(.al__sw[aria-checked=true]) {
  background-color: rgba(47, 109, 246, 0.16);
}

.al:not(.is-demo) .al__row:has(.al__sw[aria-checked=true]) .al__ic {
  color: #2f6df6;
}

.al__saved {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 0;
  height: 18px;
  color: #17141a;
  opacity: 0;
}

.al__saved-ic {
  display: inline-flex;
  color: #4cd4a6;
}

.al__saved-ic svg {
  display: block;
}

.al__saved-t {
  font-size: 12px;
  line-height: 18px;
  font-weight: 700;
}

.al:not(.is-demo)[data-saved=true] .al__saved {
  opacity: 1;
}

.al.is-demo .al__sw,
.al.is-demo .al__row {
  animation-duration: 2s;
  animation-timing-function: steps(1, end);
  animation-iteration-count: infinite;
}

.al.is-demo .al__sw[data-sw=mail] {
  animation-name: al-track-on;
}

.al.is-demo .al__sw[data-sw=push] {
  animation-name: al-track-push;
}

.al.is-demo .al__sw[data-sw=sms] {
  animation-name: al-track-sms;
}

.al.is-demo .al__row[data-row=mail] {
  animation-name: al-row-on;
}

.al.is-demo .al__row[data-row=push] {
  animation-name: al-row-push;
}

.al.is-demo .al__row[data-row=sms] {
  animation-name: al-row-sms;
}

@keyframes al-track-on {
  0% {
    background-color: #2f6df6;
  }
  100% {
    background-color: #2f6df6;
  }
}
@keyframes al-track-push {
  0% {
    background-color: rgba(23, 20, 26, 0.18);
  }
  20.83% {
    background-color: #2f6df6;
  }
  100% {
    background-color: #2f6df6;
  }
}
@keyframes al-track-sms {
  0% {
    background-color: rgba(23, 20, 26, 0.18);
  }
  58.33% {
    background-color: #2f6df6;
  }
  100% {
    background-color: #2f6df6;
  }
}
@keyframes al-row-on {
  0% {
    background-color: rgba(47, 109, 246, 0.16);
  }
  100% {
    background-color: rgba(47, 109, 246, 0.16);
  }
}
@keyframes al-row-push {
  0% {
    background-color: transparent;
  }
  29.17% {
    background-color: rgba(47, 109, 246, 0.16);
  }
  100% {
    background-color: rgba(47, 109, 246, 0.16);
  }
}
@keyframes al-row-sms {
  0% {
    background-color: transparent;
  }
  58.33% {
    background-color: rgba(47, 109, 246, 0.16);
  }
  100% {
    background-color: rgba(47, 109, 246, 0.16);
  }
}
.al.is-demo .al__knob {
  animation-duration: 2s;
  animation-timing-function: cubic-bezier(0.2, 0.8, 0.2, 1);
  animation-iteration-count: infinite;
}

.al.is-demo .al__sw[data-sw=mail] .al__knob {
  animation-name: al-knob-on;
}

.al.is-demo .al__sw[data-sw=push] .al__knob {
  animation-name: al-knob-push;
}

.al.is-demo .al__sw[data-sw=sms] .al__knob {
  animation-name: al-knob-sms;
}

@keyframes al-knob-on {
  0% {
    transform: translateX(18px);
  }
  100% {
    transform: translateX(18px);
  }
}
@keyframes al-knob-push {
  0% {
    transform: translateX(0);
  }
  20.83% {
    transform: translateX(0);
  }
  33.33% {
    transform: translateX(18px);
  }
  100% {
    transform: translateX(18px);
  }
}
@keyframes al-knob-sms {
  0% {
    transform: translateX(0);
  }
  58.33% {
    transform: translateX(0);
  }
  70.83% {
    transform: translateX(18px);
  }
  100% {
    transform: translateX(18px);
  }
}
.al.is-demo .al__ic {
  animation-duration: 2s, 2s;
  animation-iteration-count: infinite, infinite;
  animation-timing-function: steps(1, end), cubic-bezier(0.2, 1.4, 0.4, 1);
}

.al.is-demo .al__row[data-row=mail] .al__ic {
  animation-name: al-ic-on, al-pop-none;
}

.al.is-demo .al__row[data-row=push] .al__ic {
  animation-name: al-ic-push, al-pop-push;
}

.al.is-demo .al__row[data-row=sms] .al__ic {
  animation-name: al-ic-sms, al-pop-sms;
}

@keyframes al-ic-on {
  0% {
    color: #2f6df6;
  }
  100% {
    color: #2f6df6;
  }
}
@keyframes al-ic-push {
  0% {
    color: rgba(23, 20, 26, 0.45);
  }
  29.17% {
    color: #2f6df6;
  }
  100% {
    color: #2f6df6;
  }
}
@keyframes al-ic-sms {
  0% {
    color: rgba(23, 20, 26, 0.45);
  }
  58.33% {
    color: #2f6df6;
  }
  100% {
    color: #2f6df6;
  }
}
@keyframes al-pop-none {
  0% {
    transform: scale(1);
  }
  100% {
    transform: scale(1);
  }
}
@keyframes al-pop-push {
  0% {
    transform: scale(1);
  }
  29.17% {
    transform: scale(1);
  }
  33.33% {
    transform: scale(1.35);
  }
  41.67% {
    transform: scale(1);
  }
  100% {
    transform: scale(1);
  }
}
@keyframes al-pop-sms {
  0% {
    transform: scale(1);
  }
  58.33% {
    transform: scale(1);
  }
  62.5% {
    transform: scale(1.35);
  }
  70.83% {
    transform: scale(1);
  }
  100% {
    transform: scale(1);
  }
}
.al.is-demo .al__saved {
  animation-name: al-saved-cut, al-saved-lift;
  animation-duration: 2s, 2s;
  animation-timing-function: steps(1, end), cubic-bezier(0.2, 0.8, 0.2, 1);
  animation-iteration-count: infinite, infinite;
}

@keyframes al-saved-cut {
  0% {
    opacity: 0;
  }
  33.33% {
    opacity: 1;
  }
  100% {
    opacity: 1;
  }
}
@keyframes al-saved-lift {
  0% {
    transform: translateY(6px) scale(1);
  }
  33.33% {
    transform: translateY(6px) scale(1);
  }
  41.67% {
    transform: translateY(0) scale(1);
  }
  58.33% {
    transform: translateY(0) scale(1);
  }
  62.5% {
    transform: translateY(0) scale(1.08);
  }
  70.83% {
    transform: translateY(0) scale(1);
  }
  100% {
    transform: translateY(0) scale(1);
  }
}
@media (max-width: 340px) {
  .al__card {
    gap: 8px;
    padding: 8px;
  }
  .al__head {
    height: 14px;
    font-size: 11px;
    line-height: 14px;
  }
  .al__row {
    height: 26px;
    padding: 0 4px;
    gap: 4px;
  }
  .al__lab {
    font-size: 10px;
    line-height: 14px;
  }
  .al__sw {
    width: 32px;
    height: 18px;
  }
  .al__knob {
    width: 14px;
    height: 14px;
  }
  .al__sw[aria-checked=true] .al__knob {
    transform: translateX(14px);
  }
  .al__saved {
    height: 14px;
  }
  .al__saved-t {
    font-size: 10px;
    line-height: 14px;
  }
  @keyframes al-knob-on {
    0% {
      transform: translateX(14px);
    }
    100% {
      transform: translateX(14px);
    }
  }
  @keyframes al-knob-push {
    0% {
      transform: translateX(0);
    }
    20.83% {
      transform: translateX(0);
    }
    33.33% {
      transform: translateX(14px);
    }
    100% {
      transform: translateX(14px);
    }
  }
  @keyframes al-knob-sms {
    0% {
      transform: translateX(0);
    }
    58.33% {
      transform: translateX(0);
    }
    70.83% {
      transform: translateX(14px);
    }
    100% {
      transform: translateX(14px);
    }
  }
}
@media (prefers-reduced-motion: reduce) {
  .al.is-demo .al__sw,
  .al.is-demo .al__row,
  .al.is-demo .al__knob,
  .al.is-demo .al__ic,
  .al.is-demo .al__saved {
    animation: none !important;
  }
  .al.is-demo .al__sw[data-sw=mail] {
    background-color: #2f6df6 !important;
  }
  .al.is-demo .al__sw[data-sw=mail] .al__knob {
    transform: translateX(18px) !important;
  }
  .al.is-demo .al__row[data-row=mail] {
    background-color: rgba(47, 109, 246, 0.16) !important;
  }
  .al.is-demo .al__row[data-row=mail] .al__ic {
    color: #2f6df6 !important;
  }
  .al.is-demo .al__saved {
    opacity: 1 !important;
    transform: translateY(0) !important;
  }
  .al__sw,
  .al__knob {
    transition: none !important;
  }
}
@media (max-width: 340px) and (prefers-reduced-motion: reduce) {
  .al.is-demo .al__sw[data-sw=mail] .al__knob {
    transform: translateX(14px) !important;
  }
}

// 실제 동작: role="switch" 인 <button> 이라 Space·Enter 가 그대로 click 으로 온다 — 따로 가로채지 않는다
var root = document.querySelector('.al');
var switches = root.querySelectorAll('.al__sw');
Array.prototype.forEach.call(switches, function (sw) {
  sw.addEventListener('click', function () {
    root.classList.remove('is-demo');   // 사람이 만졌으니 자동 루프를 끈다
    var on = sw.getAttribute('aria-checked') !== 'true';
    sw.setAttribute('aria-checked', String(on));
    root.setAttribute('data-saved', 'true');   // 저장 줄은 사라지지 않고 Next 변경까지 남는다
  });
});

import { useState } from "react";
import type { CSSProperties, ReactNode } from "react";
import styles from "./LoginAlertSwitches.module.scss";

export type ChannelKey = "mail" | "push" | "sms";
export type LoginAlertSwitchesProps = {
  heading?: string;
  labels?: Record<ChannelKey, string>;
  savedLabel?: string;
  initial?: Record<ChannelKey, boolean>;
  duration?: number;
  easing?: string;
  color?: string;
};

type Vars = CSSProperties & { "--duration"?: string; "--easing"?: string; "--color"?: string };
type KeyEvt = { key: string; preventDefault(): void };

const ENVELOPE: ReactNode = (
  <g fill="currentColor">
    <path d="m224 56l-96 88l-96-88Z" opacity=".2" />
    <path d="M224 48H32a8 8 0 0 0-8 8v136a16 16 0 0 0 16 16h176a16 16 0 0 0 16-16V56a8 8 0 0 0-8-8m-20.57 16L128 133.15L52.57 64ZM216 192H40V74.19l82.59 75.71a8 8 0 0 0 10.82 0L216 74.19z" />
  </g>
);

const BELL: ReactNode = (
  <g fill="currentColor">
    <path d="M208 192H48a8 8 0 0 1-6.88-12C47.71 168.6 56 139.81 56 104a72 72 0 0 1 144 0c0 35.82 8.3 64.6 14.9 76a8 8 0 0 1-6.9 12" opacity=".2" />
    <path d="M221.8 175.94c-5.55-9.56-13.8-36.61-13.8-71.94a80 80 0 1 0-160 0c0 35.34-8.26 62.38-13.81 71.94A16 16 0 0 0 48 200h40.81a40 40 0 0 0 78.38 0H208a16 16 0 0 0 13.8-24.06M128 216a24 24 0 0 1-22.62-16h45.24A24 24 0 0 1 128 216m-80-32c7.7-13.24 16-43.92 16-80a64 64 0 1 1 128 0c0 36.05 8.28 66.73 16 80Z" />
  </g>
);

const CHAT: ReactNode = (
  <g fill="currentColor">
    <path d="M224 128a96 96 0 0 1-144.07 83.11l-37.39 12.47a8 8 0 0 1-10.12-10.12l12.47-37.39A96 96 0 1 1 224 128" opacity=".2" />
    <path d="M128 24a104 104 0 0 0-91.82 152.88l-11.35 34.05a16 16 0 0 0 20.24 20.24l34.05-11.35A104 104 0 1 0 128 24m0 192a87.87 87.87 0 0 1-44.06-11.81a8 8 0 0 0-4-1.08a7.9 7.9 0 0 0-2.53.42L40 216l12.47-37.4a8 8 0 0 0-.66-6.54A88 88 0 1 1 128 216m40-104a8 8 0 0 1-8 8H96a8 8 0 0 1 0-16h64a8 8 0 0 1 8 8m0 32a8 8 0 0 1-8 8H96a8 8 0 0 1 0-16h64a8 8 0 0 1 8 8" />
  </g>
);

const CHECK: ReactNode = (
  <g fill="currentColor">
    <path d="M224 128a96 96 0 1 1-96-96a96 96 0 0 1 96 96" opacity=".2" />
    <path d="M173.66 98.34a8 8 0 0 1 0 11.32l-56 56a8 8 0 0 1-11.32 0l-24-24a8 8 0 0 1 11.32-11.32L112 148.69l50.34-50.35a8 8 0 0 1 11.32 0M232 128A104 104 0 1 1 128 24a104.11 104.11 0 0 1 104 104m-16 0a88 88 0 1 0-88 88a88.1 88.1 0 0 0 88-88" />
  </g>
);

const ROWS: { key: ChannelKey; icon: ReactNode }[] = [
  { key: "mail", icon: ENVELOPE },
  { key: "push", icon: BELL },
  { key: "sms", icon: CHAT },
];

export default function LoginAlertSwitches({
  heading = "New device sign-in alerts",
  labels = { mail: "Send by email", push: "Send by push", sms: "Send by text" },
  savedLabel = "Saved",
  initial = { mail: true, push: false, sms: false },
  duration = 220,
  easing = "cubic-bezier(.2,.8,.2,1)",
  color = "#2f6df6",
}: LoginAlertSwitchesProps) {
  const [demo, setDemo] = useState(true);
  const [on, setOn] = useState<Record<ChannelKey, boolean>>(initial);
  const [saved, setSaved] = useState(false);
  const vars: Vars = { "--duration": `${duration}ms`, "--easing": easing, "--color": color };

  function toggle(key: ChannelKey) {
    setDemo(false); // 사람이 만졌으니 자동 루프를 끈다
    setOn((p) => ({ ...p, [key]: !p[key] }));
    setSaved(true); // 저장 줄은 사라지지 않고 다음 변경까지 남는다
  }

  // <button> 이라 Space·Enter 는 그대로 click 으로 온다 — Space 의 스크롤만 막는다
  function onKeyDown(e: KeyEvt) {
    if (e.key === " ") e.preventDefault();
  }

  return (
    <section
      className={`${styles.al} ${demo ? styles.isDemo : ""}`}
      data-saved={String(saved)}
      style={vars}
    >
      <div className={styles.card}>
        <p className={styles.head}>{heading}</p>

        <ul className={styles.list}>
          {ROWS.map((row) => (
            <li className={styles.row} data-row={row.key} key={row.key}>
              <span className={styles.ic} aria-hidden="true">
                <svg viewBox="0 0 256 256" width="20" height="20">{row.icon}</svg>
              </span>
              <span className={styles.lab} id={`al-lab-${row.key}`}>{labels[row.key]}</span>
              <button
                className={styles.sw}
                type="button"
                role="switch"
                aria-checked={on[row.key]}
                aria-labelledby={`al-lab-${row.key}`}
                data-sw={row.key}
                onClick={() => toggle(row.key)}
                onKeyDown={onKeyDown}
              >
                <span className={styles.knob} aria-hidden="true" />
              </button>
            </li>
          ))}
        </ul>

        <p className={styles.saved} role="status" aria-live="polite">
          <span className={styles.savedIc} aria-hidden="true">
            <svg viewBox="0 0 256 256" width="16" height="16">{CHECK}</svg>
          </span>
          <span className={styles.savedTxt}>{savedLabel}</span>
        </p>
      </div>
    </section>
  );
}