04Covering eyes at the password field

<svg width="0" height="0" style="position:absolute" aria-hidden="true">
  <defs>
    <symbol id="ico-eye-closed" viewBox="0 0 256 256" fill="currentColor"><path d="M224 104c-16.81 20.81-47.63 48-96 48s-79.19-27.19-96-48c16.81-20.81 47.63-48 96-48s79.19 27.19 96 48" opacity=".2"/><path d="M228 175a8 8 0 0 1-10.92-3l-19-33.2A123.2 123.2 0 0 1 162 155.46l5.87 35.22a8 8 0 0 1-6.58 9.21a8.4 8.4 0 0 1-1.29.11a8 8 0 0 1-7.88-6.69l-5.77-34.58a133 133 0 0 1-36.68 0l-5.77 34.58A8 8 0 0 1 96 200a8.4 8.4 0 0 1-1.32-.11a8 8 0 0 1-6.58-9.21l5.9-35.22a123.2 123.2 0 0 1-36.06-16.69L39 172a8 8 0 1 1-13.94-8l20-35a153.5 153.5 0 0 1-19.3-20a8 8 0 1 1 12.46-10c16.6 20.54 45.64 45 89.78 45s73.18-24.49 89.78-45a8 8 0 1 1 12.44 10a153.5 153.5 0 0 1-19.3 20l20 35a8 8 0 0 1-2.92 11"/></symbol>
  </defs>
</svg>
<main class="stage">
<div class="mc is-demo" id="mc">
  <p class="mc__hint">
    <svg class="mc__ico" aria-hidden="true"><use href="#ico-eye-closed"/></svg>
    <span>The mascot hides its eyes while you type</span>
  </p>

  <div class="mc__row">
    <!-- 캐릭터는 장식이라 스크린낭독기에서는 없는 셈으로 한다(칩 aria-hidden).
         실제 상태 변화는 보기 단추의 aria-pressed 가 알린다. -->
    <div class="mc__char" aria-hidden="true">
      <span class="mc__body">
        <i class="mc__eye mc__eye--l"></i>
        <i class="mc__eye mc__eye--r"></i>
        <i class="mc__cheek mc__cheek--l"></i>
        <i class="mc__cheek mc__cheek--r"></i>
        <i class="mc__mouth"></i>
        <i class="mc__arm mc__arm--l"></i>
        <i class="mc__arm mc__arm--r"></i>
      </span>
    </div>

    <form class="mc__form" id="mcForm" autocomplete="off">
      <label class="mc__label" for="mcPw">Password</label>
      <span class="mc__field">
        <!-- 칩 type="password" — 보기 단추를 켜면 text 로, 끄면 다시 password 로 돌아온다 -->
        <input class="mc__input" id="mcPw" type="password" placeholder="Enter a password" autocomplete="off">
        <button class="mc__reveal" id="mcReveal" type="button" aria-pressed="false" aria-label="Show password">
          <svg class="mc__revealIco" aria-hidden="true"><use href="#ico-eye-closed"/></svg>
        </button>
        <!-- 미리보기에서만 글자가 들어오는 흉내를 내는 겹침. 정적 경로(사람이 직접 입력)에서는 보이지 않는다 -->
        <span class="mc__ghost" aria-hidden="true">•••••</span>
      </span>
      <p class="mc__note">Show lowers the arms again</p>
    </form>
  </div>
</div>
</main>

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

// 비밀번호 칸에서 눈 가리기 — 아이디어형. 글자가 들어오기 시작하면 두 팔이 올라와 눈을 덮는다.
// 팔은 위로 미끄러지는 게 아니라 어깨를 축으로 도는 것이다 — 그래서 transform-origin 을
// 팔 윗점의 어깨 관절(5px 5px)에 둔다(칩 rotate · transform-origin). 몸은 01 마스코트와 같은
// 타원 한 개, 이목구비도 같은 자리 — 같은 캐릭터로 보여야 한다.
// 눈은 팔이 닿는 순간 steps 컷으로 감았다 떠서 반쯤 감긴 유령 프레임을 만들지 않는다.

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

@include stage($stage-paper);

.mc { display: flex; flex-direction: column; align-items: center; gap: $sp-3; width: 100%; max-width: 340px; }

.mc__hint {
  display: flex; align-items: center; gap: $sp-1; margin: 0;
  font-weight: 700; font-size: clamp(10px, 2.8vw, 12px); color: $subject-ink;
}
.mc__ico { width: 16px; height: 16px; flex: 0 0 auto; color: $color; }
.mc__hint span { flex: 1 1 auto; min-width: 0; }

.mc__row { display: flex; align-items: flex-end; justify-content: center; gap: $sp-4; width: 100%; }

// ── 캐릭터 (01 과 같은 몸, 팔만 추가) ──
.mc__char { position: relative; width: 104px; height: 124px; flex: 0 0 auto; }

.mc__body {
  position: relative; display: block; width: 88px; height: 96px;
  border-radius: 50% 50% 46% 46%;
  background: $color;
  transform-origin: 50% 100%;
  box-shadow: $shadow-press;
}

.mc__eye {
  position: absolute; top: 40px; width: 10px; height: 12px;
  border-radius: 50%; background: $stage-paper;
}
.mc__eye--l { left: 22px; }
.mc__eye--r { right: 22px; }

.mc__cheek {
  position: absolute; top: 56px; width: 12px; height: 6px;
  border-radius: $r-pill; background: $subject-pink; opacity: .9;
}
.mc__cheek--l { left: 14px; }
.mc__cheek--r { right: 14px; }

.mc__mouth {
  position: absolute; top: 60px; left: 50%; width: 16px; height: 8px;
  margin-left: -8px;
  border-bottom: 3px solid $stage-paper;
  border-radius: 0 0 $r-pill $r-pill;
}

// 팔 — 어깨에서 돈다. transform-origin 을 팔 윗점(어깨 관절)에 두는 이유:
// 중심 원점이면 팔이 제자리에서 회전하는 게 아니라 궤도를 그리며 밀려 보인다.
.mc__arm {
  position: absolute; top: 42px; width: 10px; height: 40px;
  border-radius: $r-pill;
  background: $subject-blue-deep;
  transform-origin: 5px 5px;
  transition-property: transform;
  transition-duration: $dur-base;
  transition-timing-function: $easing;
}
.mc__arm--l { left: 2px; transform: rotate(28deg); }
.mc__arm--r { right: 2px; transform: rotate(-28deg); }

// 입력이 차면 팔이 얼굴 쪽으로 돌아 올라가 눈을 덮는다
.mc.is-cover .mc__arm--l { transform: rotate(-95deg); }
.mc.is-cover .mc__arm--r { transform: rotate(95deg); }
// 눈은 트윈 없이 바로 감긴다 — 중간 반쯤 감긴 프레임을 두지 않는다
.mc.is-cover .mc__eye { transform: scaleY(.1); }

// ── 폼 ──
.mc__form { display: flex; flex-direction: column; gap: $sp-2; flex: 1 1 auto; min-width: 0; max-width: 212px; }
.mc__label { font-weight: 700; font-size: 12px; color: $subject-ink; }

.mc__field { position: relative; display: block; }
.mc__input {
  box-sizing: border-box; display: block; width: 100%;
  padding: $sp-2 44px $sp-2 $sp-3;
  border: 2px solid rgba($subject-ink, .35);
  border-radius: $r-sm;
  background: $stage-paper;
  font-weight: 500; font-size: 13px; line-height: 1.4; color: $subject-ink;
}
.mc__input:focus {
  border-color: $color;
  box-shadow: 0 0 0 3px rgba($color, .25);
  outline: none;
}

.mc__reveal {
  position: absolute; right: 4px; top: 50%;
  transform: translateY(-50%);
  display: grid; place-items: center;
  width: 28px; height: 28px; padding: 0; margin: 0;
  border: 0; border-radius: $r-control;
  background: transparent; color: $subject-ink;
  cursor: pointer;
}
.mc__revealIco { width: 18px; height: 18px; }
.mc__reveal:focus-visible { outline: 2px solid $color; outline-offset: 2px; }
// 보기가 켜졌다 — 파란 면 위 글자·아이콘은 대비가 깊은 쪽으로 (면 $subject-blue-deep 위 $stage-paper)
.mc__reveal[aria-pressed="true"] { background: $subject-blue-deep; color: $stage-paper; }

// 미리보기 겹침 — 정적 경로에선 아예 그리지 않는다
.mc__ghost { display: none; }

.mc__note {
  margin: 0;
  font-weight: 500; font-size: 11px; line-height: 1.5;
  color: rgba($subject-ink, .72);
}

// ── 미리보기 루프 (설정 초 2s 안에 한 바퀴) ──
// 0~24% 글자 들어옴(컷) · 24~36% 팔 올라감 · 34~54% 눈 감김(컷) · 54% 보기 켬(컷)
// · 56~70% 팔 내려옴 · 84% 보기 끔 · 88% 글자 지움 — 복귀가 90% 안에 끝난다.
// 들어있는 글자 흉내는 clip-path 를 steps 컷으로 잘라 한 글자씩 보이게 한다(타자기 컷).
@keyframes mcBreath {
  0%, 100% { transform: scaleY(1); }
  50%      { transform: scaleY(1.03); }
}
@keyframes mcArmL {
  0%, 24%   { transform: rotate(28deg); }
  36%       { transform: rotate(-99deg); }
  42%       { transform: rotate(-92deg); }
  48%, 56%  { transform: rotate(-99deg); }
  70%, 100% { transform: rotate(28deg); }
}
@keyframes mcArmR {
  0%, 24%   { transform: rotate(-28deg); }
  36%       { transform: rotate(99deg); }
  42%       { transform: rotate(92deg); }
  48%, 56%  { transform: rotate(99deg); }
  70%, 100% { transform: rotate(-28deg); }
}
// 눈 감김·뜸은 컷 — 반쯤 감긴 유령 프레임 금지
@keyframes mcWink {
  0%, 32%   { transform: scaleY(1); }
  34%, 54%  { transform: scaleY(.1); }
  56%, 100% { transform: scaleY(1); }
}
@keyframes mcGhost {
  0%, 5%    { clip-path: inset(0 100% 0 0); }
  7%, 9%    { clip-path: inset(0 80% 0 0); }
  11%, 13%  { clip-path: inset(0 60% 0 0); }
  15%, 17%  { clip-path: inset(0 40% 0 0); }
  19%, 21%  { clip-path: inset(0 20% 0 0); }
  23%, 86%  { clip-path: inset(0 0 0 0); }
  88%, 100% { clip-path: inset(0 100% 0 0); }
}
// 단추 켜짐도 컷 — 색 보간이 아니라 이산 교체라 중간값이 없다
@keyframes mcReveal {
  0%, 52%   { background-color: transparent; color: $subject-ink; }
  54%, 84%  { background-color: $subject-blue-deep; color: $stage-paper; }
  86%, 100% { background-color: transparent; color: $subject-ink; }
}

.mc.is-demo .mc__body {
  animation-name: mcBreath;
  animation-duration: $duration;
  animation-timing-function: $easing;
  animation-iteration-count: infinite;
}
.mc.is-demo .mc__arm--l {
  animation-name: mcArmL;
  animation-duration: $duration;
  animation-timing-function: $easing;
  animation-iteration-count: infinite;
}
.mc.is-demo .mc__arm--r {
  animation-name: mcArmR;
  animation-duration: $duration;
  animation-timing-function: $easing;
  animation-iteration-count: infinite;
}
.mc.is-demo .mc__eye {
  animation-name: mcWink;
  animation-duration: $duration;
  animation-timing-function: steps(1, end);
  animation-iteration-count: infinite;
}
.mc.is-demo .mc__reveal {
  animation-name: mcReveal;
  animation-duration: $duration;
  animation-timing-function: steps(1, end);
  animation-iteration-count: infinite;
}
.mc.is-demo .mc__ghost {
  display: flex; align-items: center;
  position: absolute; top: 50%; left: 14px; height: 60%;
  transform: translateY(-50%);
  font-weight: 500; font-size: 13px; letter-spacing: 2px; color: $subject-ink;
  animation-name: mcGhost;
  animation-duration: $duration;
  animation-timing-function: steps(1, end);
  animation-iteration-count: infinite;
}
// 겹침 글자와 placeholder 가 겹쳐 읽히지 않게 미리보기 동안만 감춘다
.mc.is-demo .mc__input::placeholder { color: transparent; }

// ── 좁은 폭 (320px 무대) ── 캐릭터는 01 의 축소판 값과 같게
@media (max-width: 340px) {
  .mc { gap: $sp-2; }
  .mc__row { gap: $sp-2; }
  .mc__char { width: 92px; height: 104px; }
  .mc__body { width: 76px; height: 82px; }
  .mc__eye { top: 34px; width: 9px; height: 11px; }
  .mc__eye--l { left: 18px; }
  .mc__eye--r { right: 18px; }
  .mc__cheek { top: 48px; }
  .mc__cheek--l { left: 10px; }
  .mc__cheek--r { right: 10px; }
  .mc__mouth { top: 52px; }
  .mc__arm { top: 36px; width: 8px; height: 34px; transform-origin: 4px 4px; }
  .mc__arm--l { left: 0; }
  .mc__arm--r { right: 0; }
  .mc__form { max-width: none; }
  .mc__label { font-size: 11px; }
  .mc__input { font-size: 12px; }
  .mc__note { font-size: 10px; }
}

// reduce — 팔이 눈을 덮은 대표 장면 한 장으로 세운다 (poster 도 이 장면이 대표)
@media (prefers-reduced-motion: reduce) {
  .mc.is-demo .mc__body,
  .mc.is-demo .mc__arm--l,
  .mc.is-demo .mc__arm--r,
  .mc.is-demo .mc__eye,
  .mc.is-demo .mc__reveal,
  .mc.is-demo .mc__ghost { animation: none !important; }
  .mc.is-demo .mc__arm--l { transform: rotate(-99deg) !important; }
  .mc.is-demo .mc__arm--r { transform: rotate(99deg) !important; }
  .mc.is-demo .mc__eye { transform: scaleY(.1) !important; }
  .mc.is-demo .mc__ghost { clip-path: inset(0 0 0 0) !important; }
}

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);
}

.mc {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  width: 100%;
  max-width: 340px;
}

.mc__hint {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 0;
  font-weight: 700;
  font-size: clamp(10px, 2.8vw, 12px);
  color: #17141a;
}

.mc__ico {
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
  color: #2f6df6;
}

.mc__hint span {
  flex: 1 1 auto;
  min-width: 0;
}

.mc__row {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 16px;
  width: 100%;
}

.mc__char {
  position: relative;
  width: 104px;
  height: 124px;
  flex: 0 0 auto;
}

.mc__body {
  position: relative;
  display: block;
  width: 88px;
  height: 96px;
  border-radius: 50% 50% 46% 46%;
  background: #2f6df6;
  transform-origin: 50% 100%;
  box-shadow: 0 6px 12px rgba(23, 20, 26, 0.32);
}

.mc__eye {
  position: absolute;
  top: 40px;
  width: 10px;
  height: 12px;
  border-radius: 50%;
  background: #ffffff;
}

.mc__eye--l {
  left: 22px;
}

.mc__eye--r {
  right: 22px;
}

.mc__cheek {
  position: absolute;
  top: 56px;
  width: 12px;
  height: 6px;
  border-radius: 999px;
  background: #ff9ebb;
  opacity: 0.9;
}

.mc__cheek--l {
  left: 14px;
}

.mc__cheek--r {
  right: 14px;
}

.mc__mouth {
  position: absolute;
  top: 60px;
  left: 50%;
  width: 16px;
  height: 8px;
  margin-left: -8px;
  border-bottom: 3px solid #ffffff;
  border-radius: 0 0 999px 999px;
}

.mc__arm {
  position: absolute;
  top: 42px;
  width: 10px;
  height: 40px;
  border-radius: 999px;
  background: #0a4fe8;
  transform-origin: 5px 5px;
  transition-property: transform;
  transition-duration: 300ms;
  transition-timing-function: cubic-bezier(0.2, 0.8, 0.2, 1);
}

.mc__arm--l {
  left: 2px;
  transform: rotate(28deg);
}

.mc__arm--r {
  right: 2px;
  transform: rotate(-28deg);
}

.mc.is-cover .mc__arm--l {
  transform: rotate(-95deg);
}

.mc.is-cover .mc__arm--r {
  transform: rotate(95deg);
}

.mc.is-cover .mc__eye {
  transform: scaleY(0.1);
}

.mc__form {
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1 1 auto;
  min-width: 0;
  max-width: 212px;
}

.mc__label {
  font-weight: 700;
  font-size: 12px;
  color: #17141a;
}

.mc__field {
  position: relative;
  display: block;
}

.mc__input {
  box-sizing: border-box;
  display: block;
  width: 100%;
  padding: 8px 44px 8px 12px;
  border: 2px solid rgba(23, 20, 26, 0.35);
  border-radius: 8px;
  background: #ffffff;
  font-weight: 500;
  font-size: 13px;
  line-height: 1.4;
  color: #17141a;
}

.mc__input:focus {
  border-color: #2f6df6;
  box-shadow: 0 0 0 3px rgba(47, 109, 246, 0.25);
  outline: none;
}

.mc__reveal {
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  padding: 0;
  margin: 0;
  border: 0;
  border-radius: 12px;
  background: transparent;
  color: #17141a;
  cursor: pointer;
}

.mc__revealIco {
  width: 18px;
  height: 18px;
}

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

.mc__reveal[aria-pressed=true] {
  background: #0a4fe8;
  color: #ffffff;
}

.mc__ghost {
  display: none;
}

.mc__note {
  margin: 0;
  font-weight: 500;
  font-size: 11px;
  line-height: 1.5;
  color: rgba(23, 20, 26, 0.72);
}

@keyframes mcBreath {
  0%, 100% {
    transform: scaleY(1);
  }
  50% {
    transform: scaleY(1.03);
  }
}
@keyframes mcArmL {
  0%, 24% {
    transform: rotate(28deg);
  }
  36% {
    transform: rotate(-99deg);
  }
  42% {
    transform: rotate(-92deg);
  }
  48%, 56% {
    transform: rotate(-99deg);
  }
  70%, 100% {
    transform: rotate(28deg);
  }
}
@keyframes mcArmR {
  0%, 24% {
    transform: rotate(-28deg);
  }
  36% {
    transform: rotate(99deg);
  }
  42% {
    transform: rotate(92deg);
  }
  48%, 56% {
    transform: rotate(99deg);
  }
  70%, 100% {
    transform: rotate(-28deg);
  }
}
@keyframes mcWink {
  0%, 32% {
    transform: scaleY(1);
  }
  34%, 54% {
    transform: scaleY(0.1);
  }
  56%, 100% {
    transform: scaleY(1);
  }
}
@keyframes mcGhost {
  0%, 5% {
    clip-path: inset(0 100% 0 0);
  }
  7%, 9% {
    clip-path: inset(0 80% 0 0);
  }
  11%, 13% {
    clip-path: inset(0 60% 0 0);
  }
  15%, 17% {
    clip-path: inset(0 40% 0 0);
  }
  19%, 21% {
    clip-path: inset(0 20% 0 0);
  }
  23%, 86% {
    clip-path: inset(0 0 0 0);
  }
  88%, 100% {
    clip-path: inset(0 100% 0 0);
  }
}
@keyframes mcReveal {
  0%, 52% {
    background-color: transparent;
    color: #17141a;
  }
  54%, 84% {
    background-color: #0a4fe8;
    color: #ffffff;
  }
  86%, 100% {
    background-color: transparent;
    color: #17141a;
  }
}
.mc.is-demo .mc__body {
  animation-name: mcBreath;
  animation-duration: 2s;
  animation-timing-function: cubic-bezier(0.2, 0.8, 0.2, 1);
  animation-iteration-count: infinite;
}

.mc.is-demo .mc__arm--l {
  animation-name: mcArmL;
  animation-duration: 2s;
  animation-timing-function: cubic-bezier(0.2, 0.8, 0.2, 1);
  animation-iteration-count: infinite;
}

.mc.is-demo .mc__arm--r {
  animation-name: mcArmR;
  animation-duration: 2s;
  animation-timing-function: cubic-bezier(0.2, 0.8, 0.2, 1);
  animation-iteration-count: infinite;
}

.mc.is-demo .mc__eye {
  animation-name: mcWink;
  animation-duration: 2s;
  animation-timing-function: steps(1, end);
  animation-iteration-count: infinite;
}

.mc.is-demo .mc__reveal {
  animation-name: mcReveal;
  animation-duration: 2s;
  animation-timing-function: steps(1, end);
  animation-iteration-count: infinite;
}

.mc.is-demo .mc__ghost {
  display: flex;
  align-items: center;
  position: absolute;
  top: 50%;
  left: 14px;
  height: 60%;
  transform: translateY(-50%);
  font-weight: 500;
  font-size: 13px;
  letter-spacing: 2px;
  color: #17141a;
  animation-name: mcGhost;
  animation-duration: 2s;
  animation-timing-function: steps(1, end);
  animation-iteration-count: infinite;
}

.mc.is-demo .mc__input::placeholder {
  color: transparent;
}

@media (max-width: 340px) {
  .mc {
    gap: 8px;
  }
  .mc__row {
    gap: 8px;
  }
  .mc__char {
    width: 92px;
    height: 104px;
  }
  .mc__body {
    width: 76px;
    height: 82px;
  }
  .mc__eye {
    top: 34px;
    width: 9px;
    height: 11px;
  }
  .mc__eye--l {
    left: 18px;
  }
  .mc__eye--r {
    right: 18px;
  }
  .mc__cheek {
    top: 48px;
  }
  .mc__cheek--l {
    left: 10px;
  }
  .mc__cheek--r {
    right: 10px;
  }
  .mc__mouth {
    top: 52px;
  }
  .mc__arm {
    top: 36px;
    width: 8px;
    height: 34px;
    transform-origin: 4px 4px;
  }
  .mc__arm--l {
    left: 0;
  }
  .mc__arm--r {
    right: 0;
  }
  .mc__form {
    max-width: none;
  }
  .mc__label {
    font-size: 11px;
  }
  .mc__input {
    font-size: 12px;
  }
  .mc__note {
    font-size: 10px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .mc.is-demo .mc__body,
  .mc.is-demo .mc__arm--l,
  .mc.is-demo .mc__arm--r,
  .mc.is-demo .mc__eye,
  .mc.is-demo .mc__reveal,
  .mc.is-demo .mc__ghost {
    animation: none !important;
  }
  .mc.is-demo .mc__arm--l {
    transform: rotate(-99deg) !important;
  }
  .mc.is-demo .mc__arm--r {
    transform: rotate(99deg) !important;
  }
  .mc.is-demo .mc__eye {
    transform: scaleY(0.1) !important;
  }
  .mc.is-demo .mc__ghost {
    clip-path: inset(0 0 0 0) !important;
  }
}

// Password 칸에서 눈 가리기 — input 이벤트로 팔을 올리고, 보기 단추로 내린다.
// 데모 미리보기(.is-demo)는 사람이 처음 손댈 때 떼고 실제 상태로 넘어간다.
(function () {
  var root = document.getElementById('mc');
  var form = document.getElementById('mcForm');
  var input = document.getElementById('mcPw');
  var btn = document.getElementById('mcReveal');
  var LABEL_SHOW = 'Show password';
  var LABEL_HIDE = 'Hide password';

  function wake() { root.classList.remove('is-demo'); }

  // 팔을 올릴 조건 — 글자가 하나라도 있고, 보기가 꺼져 있을 때
  function sync() {
    var shown = btn.getAttribute('aria-pressed') === 'true';
    root.classList.toggle('is-cover', input.value !== '' && !shown);
  }

  form.addEventListener('submit', function (e) { e.preventDefault(); });
  input.addEventListener('input', function () { wake(); sync(); });
  input.addEventListener('focus', wake);
  root.addEventListener('pointerenter', wake);

  btn.addEventListener('click', function () {
    wake();
    var on = btn.getAttribute('aria-pressed') !== 'true';
    btn.setAttribute('aria-pressed', on ? 'true' : 'false');
    input.type = on ? 'text' : 'password';
    btn.setAttribute('aria-label', on ? LABEL_HIDE : LABEL_SHOW);
    sync();
  });
}());

// EyesCoverPassword — vanilla 판(run/300/demo/04-mascot-eyes-cover-password/index.html) 의 React 포트.
// 글자가 들어오면 두 팔이 어깨를 축으로 올라와 눈을 덮고, 보기 단추를 켜면 내려간다.
// 캐릭터는 장식(aria-hidden), 상태는 단추의 aria-pressed 가 알린다. 값·수치는 vanilla 와 같다.
import { useState } from "react";
import type { CSSProperties } from "react";
import styles from "./EyesCoverPassword.module.scss";

export type EyesCoverPasswordProps = {
  duration?: number;
  easing?: string;
  color?: string;
};

type Vars = CSSProperties & { "--duration"?: string; "--easing"?: string; "--color"?: string };
// 로컬 이벤트 타입 — ambient 에 React 이벤트 제네릭이 없다 (292 실측 계열)
type InputEvt = { target: { value: string } };
type SubmitEvt = { preventDefault(): void };

const LABEL_SHOW = "비밀번호 보기";
const LABEL_HIDE = "비밀번호 숨기기";
const HINT_TEXT = "비밀번호를 넣으면 눈을 가려 줍니다";
const LABEL_TEXT = "비밀번호";
const PLACEHOLDER = "비밀번호를 입력하세요";
const NOTE_TEXT = "보기 단추를 켜면 팔이 내려갑니다";
const GHOST_TEXT = "•••••";

export default function EyesCoverPassword({
  duration = 2000,
  easing = "cubic-bezier(.2,.8,.2,1)",
  color = "#2f6df6",
}: EyesCoverPasswordProps) {
  const [value, setValue] = useState("");
  const [shown, setShown] = useState(false);
  const [demo, setDemo] = useState(true);
  const vars: Vars = { "--duration": `${duration}ms`, "--easing": easing, "--color": color };
  const cover = value !== "" && !shown;
  const rootCls = cover
    ? `${styles.mc} ${styles["is-cover"]}`
    : styles.mc;

  return (
    <main className={styles.stage}>
      <div
        className={demo ? `${rootCls} ${styles["is-demo"]}` : rootCls}
        style={vars}
        onPointerEnter={() => setDemo(false)}
      >
        <p className={styles.mc__hint}>
          <svg className={styles.mc__ico} aria-hidden="true">
            <use href="#ico-eye-closed" />
          </svg>
          <span>{HINT_TEXT}</span>
        </p>

        <div className={styles.mc__row}>
          {/* 캐릭터는 장식 — 상태는 보기 단추의 aria-pressed 로 알린다 */}
          <div className={styles.mc__char} aria-hidden={true}>
            <span className={styles.mc__body}>
              <i className={`${styles.mc__eye} ${styles["mc__eye--l"]}`}></i>
              <i className={`${styles.mc__eye} ${styles["mc__eye--r"]}`}></i>
              <i className={`${styles.mc__cheek} ${styles["mc__cheek--l"]}`}></i>
              <i className={`${styles.mc__cheek} ${styles["mc__cheek--r"]}`}></i>
              <i className={styles.mc__mouth}></i>
              <i className={`${styles.mc__arm} ${styles["mc__arm--l"]}`}></i>
              <i className={`${styles.mc__arm} ${styles["mc__arm--r"]}`}></i>
            </span>
          </div>

          <form
            className={styles.mc__form}
            autoComplete="off"
            onSubmit={(e: SubmitEvt) => e.preventDefault()}
          >
            <label className={styles.mc__label} htmlFor="mc-pw">{LABEL_TEXT}</label>
            <span className={styles.mc__field}>
              <input
                id="mc-pw"
                className={styles.mc__input}
                type={shown ? "text" : "password"}
                placeholder={PLACEHOLDER}
                autoComplete="off"
                value={value}
                onFocus={() => setDemo(false)}
                onChange={(e: InputEvt) => { setDemo(false); setValue(e.target.value); }}
              />
              <button
                type="button"
                className={styles.mc__reveal}
                aria-pressed={shown ? "true" : "false"}
                aria-label={shown ? LABEL_HIDE : LABEL_SHOW}
                onClick={() => { setDemo(false); setShown((s) => !s); }}
              >
                <svg className={styles.mc__revealIco} aria-hidden="true">
                  <use href="#ico-eye-closed" />
                </svg>
              </button>
              {/* 미리보기에서만 글자가 들어오는 흉내를 내는 겹침 */}
              <span className={styles.mc__ghost} aria-hidden={true}>{GHOST_TEXT}</span>
            </span>
            <p className={styles.mc__note}>{NOTE_TEXT}</p>
          </form>
        </div>
      </div>
    </main>
  );
}