/* ==========================================================================
   Lignums 홈 — 학교의 하루를 날아서 따라가는 스크롤 영화
   - 모든 장면은 1600×1000 "월드" 좌표로 그린다. 월드는 화면을 덮도록 --ww 로 크기가 정해지고,
     --u (월드 1단위 = px)로 DOM 요소도 같은 좌표계에 놓는다.
   - 카메라·전환은 js/story/* 가 진행값 하나(0→1)로 계산해 transform 만 바꾼다.
   - 화면 레이아웃(이 파일)은 정지 상태가 기준이다. JS 가 없으면 글만 순서대로 보인다.
   ========================================================================== */
:root {
  --ww: max(100vw, 160svh);
  --cy: .5;
  --u: calc(var(--ww) / 1600);
  --st-ink: #15171C;
  --st-ink-2: #4A4F59;
  --st-paper: #FAFAF7;
  --st-brand: #2B519C;
  --st-brand-l: #88AEF4;
  --st-leaf: #1B9A6F;
  --st-marker: #F6D55C;
  --st-red: #B92B28;
  --st-sans: Pretendard, -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
  --st-serif: "Noto Serif KR", AppleMyungjo, "Nanum Myeongjo", serif;
  --st-pen: "Nanum Pen Script", cursive;
}
@media (max-aspect-ratio: 1/1) { :root { --ww: max(100vw, 118svh); --cy: .57; } }

/* ---------- 이야기 컨테이너 ---------- */
.ls-story { position: relative; height: 2200svh; background: #E4ECF3; }
@media (max-width: 760px) { .ls-story { height: 1500svh; } }
.ls-stage { position: sticky; top: 0; height: 100svh; overflow: hidden; background: #E4ECF3; isolation: isolate; contain: layout paint; }

/* JS 가 준비되기 전 / 없을 때: 그림 없이 글만 순서대로 */
html:not(.story-ready) .ls-story { height: auto; background: var(--bg); }
html:not(.story-ready) .ls-stage { position: relative; height: auto; overflow: visible; background: var(--bg); contain: none; }
html:not(.story-ready) .sc, html:not(.story-ready) .ls-ui { display: none; }
html:not(.story-ready) .ls-copy { position: static; display: grid; gap: 64px; padding: calc(var(--nav-h) + 64px) var(--gutter) 96px; max-width: 900px; margin: 0 auto; }
html:not(.story-ready) .ls-copy .cp { position: static; opacity: 1; transform: none; color: var(--fg); max-width: none; }
html:not(.story-ready) .ls-copy .cp p { color: var(--fg-2); }

/* ---------- 장면 ---------- */
.cp-scrim { position: absolute; inset: 0; pointer-events: none; z-index: 7; background: linear-gradient(90deg, rgba(238, 244, 250, .82) 0%, rgba(238, 244, 250, .55) 28%, rgba(238, 244, 250, 0) 52%); }
.sc { position: absolute; inset: 0; visibility: hidden; overflow: hidden; isolation: isolate; }
.sc.on { visibility: visible; }
.sc:not(.on) * { animation-play-state: paused !important; }
.world { position: absolute; left: 50%; top: calc(var(--cy) * 100%); width: var(--ww); height: calc(var(--ww) * .625); margin: calc(var(--ww) * -.3125) 0 0 calc(var(--ww) * -.5); transform-origin: 50% 50%; }
.world > svg { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.sc.on .world:not(.crisp) { will-change: transform; }
.wp { position: absolute; } /* 월드 좌표에 놓는 DOM (left/top/width 를 --u 로) */
.sc-fill { position: absolute; inset: 0; pointer-events: none; }

/* ---------- 글 ---------- */
.ls-copy { position: absolute; inset: 0; pointer-events: none; z-index: 20; }
.cp { position: absolute; max-width: min(560px, calc(100vw - 40px)); opacity: 0; color: var(--st-ink); will-change: transform, opacity; }
.cp h1, .cp h2 { font-family: var(--st-sans); font-weight: 700; letter-spacing: -.035em; line-height: 1.05; text-wrap: balance; }
.cp h1 { font-size: clamp(36px, 5vw, 76px); }
.cp h2 { font-size: clamp(30px, 4.4vw, 64px); }
.cp p { margin-top: 16px; font-size: clamp(16px, 1.35vw, 20px); line-height: 1.6; color: var(--st-ink-2); text-wrap: pretty; }
.cp .cp-brand { margin: 0 0 18px; font-size: 13px; font-weight: 700; letter-spacing: .32em; color: var(--st-brand); }
.cp.on-dark { color: #F2F3F5; }
.cp.on-dark p { color: #B9BEC8; }
.cp.on-dark .cp-brand { color: var(--st-brand-l); }
.cp-open { left: clamp(20px, 5vw, 96px); top: clamp(96px, 17svh, 190px); max-width: min(30vw, 520px); }
@media (max-aspect-ratio: 1/1) { .cp-open { max-width: calc(100vw - 40px); } }
.cp-open h1 { color: #1A2433; }
.cp-an { left: clamp(20px, 6vw, 110px); top: clamp(96px, 13svh, 150px); }
.cp-study { left: clamp(20px, 6vw, 110px); bottom: clamp(24px, 7svh, 72px); max-width: min(480px, calc(100vw - 40px)); } /* 밤 책상 위(어두운 바닥)에 */
.cp-pr1, .cp-pr2 { left: clamp(20px, 6vw, 110px); top: 36%; max-width: min(360px, calc(100vw - 40px)); }
@media (min-aspect-ratio: 1/1) and (max-width: 1100px) { .cp-pr1, .cp-pr2 { max-width: 260px; } .cp-pr1 h2, .cp-pr2 h2 { font-size: 30px; } }
.cp-eco { left: clamp(20px, 6vw, 110px); bottom: clamp(20px, 5svh, 56px); } /* 복도는 위가 창문이라 글은 바닥 쪽에 */
.cp-teacher { left: clamp(20px, 6vw, 110px); top: clamp(92px, 11svh, 130px); max-width: min(380px, calc(100vw - 40px)); }
.cp-academy { left: clamp(20px, 6vw, 110px); top: clamp(92px, 11svh, 130px); max-width: min(380px, calc(100vw - 40px)); }
.cp-fin { left: 0; right: 0; margin: 0 auto; bottom: clamp(36px, 8svh, 90px); text-align: center; max-width: min(640px, calc(100vw - 40px)); }
.cp-fin h2 { font-size: clamp(40px, 6vw, 84px); letter-spacing: .02em; }
.cp-fin p { font-size: clamp(17px, 1.6vw, 22px); color: var(--st-ink); }
.cp-cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-top: 26px; pointer-events: auto; }
.cp-cta .btn-ghost { color: var(--st-ink); box-shadow: inset 0 0 0 1px rgba(21, 23, 28, .2); background: rgba(255, 255, 255, .5); }
@media (hover: hover) and (pointer: fine) { .cp-cta .btn-ghost:hover { background: rgba(255, 255, 255, .85); } }
.cp-cta .btn-brand { background: var(--st-brand); color: #fff; }
@media (hover: hover) and (pointer: fine) { .cp-cta .btn-brand:hover { background: #1E3A71; } }
.cp-tag { display: inline-flex; gap: 8px; align-items: center; margin-top: 14px; font-size: 13px; font-weight: 600; color: var(--st-brand); }
.cp.on-dark .cp-tag { color: var(--st-brand-l); }
@media (max-aspect-ratio: 1/1) {
  .cp-open { top: calc(var(--nav-h) + 20px); }
  .cp-an, .cp-study, .cp-eco { top: calc(var(--nav-h) + 12px); bottom: auto; }
  .cp-scrim { background: linear-gradient(180deg, rgba(238, 244, 250, .86), rgba(238, 244, 250, .5) 30%, rgba(238, 244, 250, 0) 50%); }
  .cp-pr1, .cp-pr2 { top: calc(var(--nav-h) + 8px); }
  .cp-pr1 h2, .cp-pr2 h2 { font-size: 26px; }
  .cp-teacher, .cp-academy { top: calc(var(--nav-h) + 8px); }
  .cp-teacher h2, .cp-academy h2 { font-size: 26px; }
  .cp p { margin-top: 10px; }
}

/* 장면 시간 자막(영화 자막처럼) · 스크롤 안내 */
.ls-ui { position: absolute; inset: 0; pointer-events: none; z-index: 21; }
.st-time { position: absolute; right: clamp(16px, 4vw, 56px); bottom: clamp(18px, 4svh, 40px); display: inline-flex; align-items: baseline; gap: 10px; padding: 7px 12px; border-radius: 999px; background: rgba(255, 255, 255, .62); color: var(--st-ink); font-size: 12.5px; font-weight: 600; backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); box-shadow: 0 0 0 1px rgba(21, 23, 28, .06); transition: opacity 300ms ease, background-color 300ms ease, color 300ms ease; font-variant-numeric: tabular-nums; }
.st-time b { font-weight: 700; letter-spacing: .02em; }
.st-time.dark { background: rgba(14, 16, 22, .5); color: #E9EBEF; box-shadow: 0 0 0 1px rgba(255, 255, 255, .08); }
.st-time[hidden] { display: none; }
.st-hint { position: absolute; left: 50%; bottom: 28px; transform: translateX(-50%); display: grid; justify-items: center; gap: 8px; font-size: 11.5px; letter-spacing: .2em; color: #4E5B6C; transition: opacity 300ms ease; }
.st-hint i { width: 1px; height: 40px; background: linear-gradient(#4E5B6C, transparent); position: relative; overflow: hidden; }
.st-hint i::after { content: ""; position: absolute; inset: 0; background: var(--st-brand); transform: translateY(-100%); animation: stDrip 1.8s cubic-bezier(.77, 0, .175, 1) infinite; }
@keyframes stDrip { to { transform: translateY(100%); } }

/* ---------- 로딩(인위적 지연 없음) ---------- */
.ls-loader { position: fixed; inset: 0; z-index: 950; display: grid; place-items: center; background: #E4ECF3; color: var(--st-ink); transition: opacity 400ms ease, visibility 0s linear 400ms; animation: lsAuto 0s linear 2.5s forwards; }
.ls-loader > div { display: grid; gap: 10px; justify-items: center; }
.ls-loader b { font-size: 15px; letter-spacing: .32em; font-weight: 700; color: var(--st-brand); }
.ls-loader span { font-size: 13px; color: #556274; }
.ls-loader i { display: block; width: 120px; height: 2px; border-radius: 1px; background: rgba(43, 81, 156, .15); overflow: hidden; position: relative; }
.ls-loader i::after { content: ""; position: absolute; inset: 0; background: var(--st-brand); transform: translateX(-100%); animation: lsBar 1s cubic-bezier(.23, 1, .32, 1) infinite; }
.ls-loader.done { opacity: 0; visibility: hidden; }
@keyframes lsBar { to { transform: translateX(100%); } }
@keyframes lsAuto { to { opacity: 0; visibility: hidden; } }

/* ---------- 홈에서 어두운 장면(밤 공부) 위 내비: 기본은 라이트, 밤에만 흰 글씨 ---------- */
body.story-dark .nav:not(.is-sheet) .nav-links a, body.story-dark .nav:not(.is-sheet) .nav-dd > button { color: rgba(236, 237, 239, .78); }
body.story-dark .nav:not(.is-sheet) .nav-links a.is-active, body.story-dark .nav:not(.is-sheet) .nav-dd.is-open > button { color: #fff; }
@media (hover: hover) and (pointer: fine) { body.story-dark .nav:not(.is-sheet) .nav-links a:hover, body.story-dark .nav:not(.is-sheet) .nav-dd > button:hover { color: #fff; background: rgba(255, 255, 255, .08); } }
body.story-dark .nav:not(.is-sheet) .nav-logo img { filter: invert(1) brightness(1.2); }
body.story-dark .nav:not(.is-sheet) .nav-burger i { background: #fff; }
body.story-dark .nav.is-solid:not(.is-sheet) { background: rgba(20, 24, 40, .6); border-color: rgba(255, 255, 255, .1); }
body.story-dark .nav:not(.is-sheet) .btn-brand { background: #88AEF4; color: #0E1016; }
body.story-dark .nav:not(.is-sheet) .btn-ghost { color: #fff; box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .3); }

/* ---------- 앰비언트(눈치채기 어려울 만큼) ---------- */
.amb-cloud { animation: ambCloud var(--d, 120s) linear infinite; }
@keyframes ambCloud { from { transform: translateX(-60px); } to { transform: translateX(160px); } }
.amb-sway { transform-box: fill-box; transform-origin: 50% 100%; animation: ambSway var(--d, 7s) ease-in-out infinite alternate; }
@keyframes ambSway { from { transform: rotate(-1.4deg); } to { transform: rotate(1.4deg); } }
.amb-fall { animation: ambFall var(--d, 14s) linear infinite; animation-delay: var(--dl, 0s); }
@keyframes ambFall { 0% { transform: translate(0, -40px) rotate(0); opacity: 0; } 8% { opacity: 1; } 50% { transform: translate(60px, 300px) rotate(160deg); } 92% { opacity: 1; } 100% { transform: translate(-20px, 640px) rotate(340deg); opacity: 0; } }
.walk { animation: walk var(--dur, 40s) linear infinite; animation-delay: var(--dl, 0s); }
@keyframes walk { 0% { transform: translateX(0); opacity: 0; } 6% { opacity: 1; } 94% { opacity: 1; } 100% { transform: translateX(var(--dx, 300px)); opacity: 0; } }
.bob { animation: bob .55s ease-in-out infinite alternate; }
@keyframes bob { from { transform: translateY(0); } to { transform: translateY(-1.4px); } }
.lg1, .lg2, .arm1 { transform-box: fill-box; transform-origin: 50% 0; }
.lg1 { animation: legSw 1.1s ease-in-out infinite alternate; }
.lg2 { animation: legSw 1.1s ease-in-out infinite alternate-reverse; }
.arm1 { animation: legSw 1.1s ease-in-out infinite alternate-reverse; }
@keyframes legSw { from { transform: rotate(16deg); } to { transform: rotate(-16deg); } }
.writing { transform-box: fill-box; transform-origin: 0 0; animation: writing 1.7s ease-in-out infinite; }
@keyframes writing { 0%, 100% { transform: translate(0, 0); } 25% { transform: translate(1.6px, .7px); } 50% { transform: translate(.4px, -.5px); } 75% { transform: translate(2.1px, .3px); } }
.nod { transform-box: fill-box; transform-origin: 50% 100%; animation: nod 4.6s ease-in-out infinite; }
@keyframes nod { 0%, 70%, 100% { transform: rotate(0); } 80% { transform: rotate(4deg); } 90% { transform: rotate(-1deg); } }
.clock-m { transform-box: view-box; animation: clockM 60s linear infinite; }
@keyframes clockM { to { transform: rotate(360deg); } }
.curtain { transform-box: fill-box; transform-origin: 50% 0; animation: curtain 6s ease-in-out infinite alternate; }
@keyframes curtain { from { transform: skewX(-1.6deg); } to { transform: skewX(1.8deg); } }
.dust { animation: dust var(--d, 9s) ease-in-out infinite alternate; animation-delay: var(--dl, 0s); }
@keyframes dust { from { transform: translate(0, 0); opacity: .25; } to { transform: translate(14px, -22px); opacity: .7; } }
.breathe { animation: breathe 5s ease-in-out infinite alternate; }
@keyframes breathe { from { opacity: .82; } to { opacity: 1; } }
.glint { animation: glint 9s ease-in-out infinite; }
@keyframes glint { 0%, 70% { opacity: 0; transform: translateX(-30px); } 80% { opacity: .55; } 95%, 100% { opacity: 0; transform: translateX(40px); } }
.wave i { animation: wave .9s ease-in-out infinite alternate; transform-origin: 50% 50%; }
@keyframes wave { from { transform: scaleY(.35); } to { transform: scaleY(1); } }
.hl-run { transform-origin: 0 50%; animation: hlRun 3.2s ease-in-out infinite; }
@keyframes hlRun { 0% { transform: scaleX(0); } 45%, 100% { transform: scaleX(1); } }
.pulse { animation: pulse 2.4s ease-out infinite; transform-box: fill-box; transform-origin: 50% 50%; }
@keyframes pulse { from { transform: scale(.6); opacity: .7; } to { transform: scale(2.2); opacity: 0; } }

/* ---------- 디바이스 화면(실제 제품 캡처 자리) ---------- */
.dev { position: absolute; transform-style: preserve-3d; transform: perspective(calc(var(--u) * 2400)) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg)) rotateZ(var(--rz, 0deg)); }
.dev-scr { position: absolute; overflow: hidden; background: #F4F3EF; isolation: isolate; }
.dev-scr img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: top center; filter: brightness(var(--br, 1)); }
.dev-scr .glare { position: absolute; inset: 0; z-index: 3; pointer-events: none; background: linear-gradient(118deg, rgba(255, 255, 255, .26) 0%, rgba(255, 255, 255, 0) 32%, rgba(255, 255, 255, 0) 70%, rgba(255, 255, 255, .08) 100%); mix-blend-mode: screen; }
.dev-scr .shade { position: absolute; inset: 0; z-index: 2; pointer-events: none; background: var(--shade, transparent); }
.dev-tablet { background: #17181C; border-radius: calc(var(--u) * 22); box-shadow: 0 0 0 calc(var(--u) * 1.5) #3A3D44 inset, 0 calc(var(--u) * 30) calc(var(--u) * 60) rgba(0, 0, 0, .45); }
.dev-tablet .dev-scr { inset: calc(var(--u) * 9); border-radius: calc(var(--u) * 13); }
.dev-phone { background: #121316; border-radius: calc(var(--u) * 26); box-shadow: 0 0 0 calc(var(--u) * 1.5) #3A3D44 inset, 0 calc(var(--u) * 20) calc(var(--u) * 40) rgba(0, 0, 0, .35); }
.dev-phone .dev-scr { inset: calc(var(--u) * 6); border-radius: calc(var(--u) * 20); }
.dev-phone .island { position: absolute; z-index: 5; top: calc(var(--u) * 12); left: 50%; width: 30%; height: calc(var(--u) * 10); margin-left: -15%; border-radius: 99px; background: #0A0B0D; }
.dev-monitor { background: #1B1D22; border-radius: calc(var(--u) * 8); box-shadow: 0 0 0 calc(var(--u) * 1.5) #3A3D44 inset, 0 calc(var(--u) * 24) calc(var(--u) * 50) rgba(0, 0, 0, .28); }
.dev-monitor .dev-scr { inset: calc(var(--u) * 8) calc(var(--u) * 8) calc(var(--u) * 14); border-radius: calc(var(--u) * 3); }
.dev-laptop { background: #1E2026; border-radius: calc(var(--u) * 10) calc(var(--u) * 10) calc(var(--u) * 3) calc(var(--u) * 3); box-shadow: 0 0 0 calc(var(--u) * 1.5) #3A3D44 inset; }
.dev-laptop .dev-scr { inset: calc(var(--u) * 8); border-radius: calc(var(--u) * 3); }
.dev-laptop::after { content: ""; position: absolute; left: -9%; right: -9%; bottom: calc(var(--u) * -10); height: calc(var(--u) * 10); background: linear-gradient(#C9CDD3, #9EA4AD); border-radius: 0 0 calc(var(--u) * 10) calc(var(--u) * 10); }
/* 캡처가 아직 없을 때: 조용한 UI 뼈대. 개발 중(localhost)에는 어떤 캡처가 들어갈지 이름을 보여 준다 */
.cap-ph { position: absolute; inset: 0; display: grid; grid-template-rows: auto 1fr; background: #F6F5F1; }
.cap-ph .b { height: 9%; min-height: 6px; background: #ECEAE4; border-bottom: 1px solid rgba(0, 0, 0, .05); }
.cap-ph .c { padding: 7%; display: grid; gap: 5%; align-content: start; }
.cap-ph .c i { display: block; height: 7%; min-height: 4px; border-radius: 3px; background: #E3E1DA; }
.cap-ph .c i:nth-child(2) { width: 72%; } .cap-ph .c i:nth-child(3) { width: 86%; } .cap-ph .c i:nth-child(4) { width: 54%; background: #D8E5FD; }
.cap-ph .lbl { display: none; position: absolute; inset: auto 6% 6% 6%; padding: 6px 8px; border-radius: 6px; background: rgba(185, 43, 40, .9); color: #fff; font: 600 10px/1.3 ui-monospace, Menlo, monospace; letter-spacing: .02em; text-align: center; }
html.ls-dev .cap-ph .lbl { display: block; }
.dev-scr.has-img .cap-ph { display: none; }

/* ---------- 장면별 DOM ---------- */
/* 시험지 */
.exam { background: #FFFEFB; color: #1d1f24; font-family: var(--st-serif); box-shadow: 0 calc(var(--u) * 2) calc(var(--u) * 4) rgba(0, 0, 0, .08), 0 calc(var(--u) * 18) calc(var(--u) * 40) rgba(60, 40, 10, .18); padding: calc(var(--u) * 34) calc(var(--u) * 36); font-size: calc(var(--u) * 12.4); line-height: 1.65; transform-origin: 50% 50%; }
.exam-h { display: grid; grid-template-columns: 1fr auto; align-items: end; padding-bottom: calc(var(--u) * 10); border-bottom: calc(var(--u) * 2.2) solid #1d1f24; font-family: var(--st-sans); }
.exam-h b { font-size: calc(var(--u) * 22); letter-spacing: .08em; }
.exam-h small { font-size: calc(var(--u) * 10.5); color: #555a63; }
.exam-h .who { grid-column: 1 / -1; display: flex; gap: calc(var(--u) * 14); margin-top: calc(var(--u) * 8); font-size: calc(var(--u) * 10.5); color: #555a63; }
.exam-h .who span { border-bottom: 1px solid #b9b9b4; padding: 0 calc(var(--u) * 18) 0 0; }
.exam-b { display: grid; grid-template-columns: 1fr 1fr; gap: calc(var(--u) * 22); margin-top: calc(var(--u) * 18); position: relative; }
.exam-b::before { content: ""; position: absolute; left: 50%; top: 0; bottom: 0; width: 1px; background: #cfcdc6; }
.exam-col { display: grid; gap: calc(var(--u) * 30); align-content: start; }
.q { position: relative; }
.q .qn { font-family: var(--st-sans); font-weight: 700; display: inline-block; margin-right: calc(var(--u) * 4); }
.q .qt { display: inline; }
.q .eq { display: inline-block; font-style: italic; }
.q .opts { display: flex; justify-content: space-between; margin-top: calc(var(--u) * 8); font-family: var(--st-sans); font-size: calc(var(--u) * 11.5); }
.q .pts { color: #6a6e76; font-size: calc(var(--u) * 10.5); }
.q .fig { display: block; width: 100%; height: auto; margin: calc(var(--u) * 8) 0 0; }
.q .utag { position: absolute; right: 0; top: calc(var(--u) * -18); font-family: var(--st-sans); font-size: calc(var(--u) * 9.5); font-weight: 700; padding: calc(var(--u) * 2) calc(var(--u) * 7); border-radius: 99px; background: #D8E5FD; color: var(--st-brand); opacity: 0; }
.q .lift { position: relative; display: inline-block; transform-origin: 50% 50%; }
.q .lift.blk { display: block; }
.exam .hand { font-family: var(--st-pen); color: #2B4F96; font-size: calc(var(--u) * 20); position: absolute; }
.scan-bar { position: absolute; left: -2%; right: -2%; height: calc(var(--u) * 3); background: linear-gradient(90deg, transparent, rgba(27, 154, 111, .9), transparent); box-shadow: 0 0 calc(var(--u) * 18) rgba(27, 154, 111, .6); opacity: 0; }
/* 폰 위 분석 시트 */
.scan-sheet { position: absolute; z-index: 4; left: 0; right: 0; bottom: 0; padding: 12% 10% 14%; background: rgba(255, 255, 255, .96); border-radius: 18% 18% 0 0 / 6% 6% 0 0; box-shadow: 0 -8px 24px rgba(0, 0, 0, .12); font-family: var(--st-sans); color: var(--st-ink); transform: translateY(100%); }
.scan-sheet b { display: block; font-size: calc(var(--u) * 11.5); margin-bottom: calc(var(--u) * 8); }
.scan-sheet ol { list-style: none; margin: 0; padding: 0; display: grid; gap: calc(var(--u) * 6); font-size: calc(var(--u) * 10); color: #5B5F68; }
.scan-sheet li { display: flex; align-items: center; gap: calc(var(--u) * 6); }
.scan-sheet li i { width: calc(var(--u) * 11); height: calc(var(--u) * 11); border-radius: 50%; box-shadow: inset 0 0 0 calc(var(--u) * 1.4) #C9CDD3; display: grid; place-items: center; flex: 0 0 auto; }
.scan-sheet li.done { color: var(--st-ink); }
.scan-sheet li.done i { background: var(--st-leaf); box-shadow: none; }
.scan-sheet li.done i::after { content: ""; width: 40%; height: 22%; border: solid #fff; border-width: 0 0 calc(var(--u) * 1.4) calc(var(--u) * 1.4); transform: rotate(-45deg) translate(5%, -20%); }
.scan-sheet li.run i { box-shadow: inset 0 0 0 calc(var(--u) * 1.4) var(--st-brand); }

/* 분석 세계 */
.an-sc { background: var(--st-paper); }
.an-grid { position: absolute; inset: -20%; background-image: linear-gradient(rgba(21, 23, 28, .045) 1px, transparent 1px), linear-gradient(90deg, rgba(21, 23, 28, .045) 1px, transparent 1px); background-size: 48px 48px; opacity: 0; }
.an-move { position: absolute; inset: 0; }
.qc { position: absolute; left: 0; top: 0; width: clamp(150px, 13.5vw, 210px); padding: 12px 13px 13px; border-radius: 10px; background: #fff; box-shadow: 0 0 0 1px rgba(21, 23, 28, .07), 0 6px 18px rgba(21, 23, 28, .07); font-size: 11.5px; line-height: 1.45; color: var(--st-ink); transform-origin: 50% 50%; will-change: transform, opacity; }
.qc .qc-in { display: grid; gap: 6px; }
.qc .n { font-weight: 700; font-size: 12px; display: flex; justify-content: space-between; color: #2a2d34; }
.qc .n em { font-style: normal; font-weight: 500; color: #8A8E96; font-size: 10.5px; }
.qc .t { font-family: var(--st-serif); font-size: 11.5px; color: #33363d; }
.qc svg { width: 100%; height: auto; }
.qc .tg { display: flex; flex-wrap: wrap; gap: 4px; }
.qc .tg i { font-style: normal; font-size: 10.5px; font-weight: 600; padding: 2px 7px; border-radius: 99px; background: #EEF0F3; color: #4C515B; opacity: 0; }
.qc .tg i.u { background: #D8E5FD; color: #1E3A71; }
.qc .tg i.hot { background: #FBE7A1; color: #6B4D00; }
.qc .tg i.hard { background: #FBE4E3; color: #9B2522; }
.qc .bar-fill { position: absolute; inset: 0; border-radius: inherit; background: var(--st-brand); opacity: 0; }
@media (max-width: 760px) { .qc { width: 128px; padding: 9px 10px; font-size: 10.5px; } .qc .t { font-size: 10.5px; } }
.an-lbl { position: absolute; left: 0; top: 0; transform: translate(-50%, 0); font-size: 13px; font-weight: 700; color: var(--st-ink); white-space: nowrap; opacity: 0; text-align: center; }
.an-lbl small { display: block; font-weight: 500; color: #6B6F78; font-size: 12px; font-variant-numeric: tabular-nums; }
.an-axis { position: absolute; height: 1.5px; background: #15171C; transform-origin: 0 50%; transform: scaleX(0); }
.an-sum { position: absolute; display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; opacity: 0; }
.an-sum span { font-size: 12.5px; font-weight: 600; padding: 5px 11px; border-radius: 99px; background: #fff; box-shadow: 0 0 0 1px rgba(21, 23, 28, .08); color: #2a2d34; font-variant-numeric: tabular-nums; }
.an-sum span b { color: var(--st-brand); }
.an-line { position: absolute; left: 0; top: 0; overflow: visible; pointer-events: none; }

/* 저녁 공부 · 연습 */
.st-sc { background: #1F2636; }
.ink-ov { position: absolute; inset: 0; z-index: 4; width: 100%; height: 100%; overflow: visible; }
.warm { position: absolute; inset: 0; background: radial-gradient(circle at var(--wx, 30%) var(--wy, 30%), #FFF4DA 0%, #FFE8B8 35%, #FFF1D6 100%); opacity: 0; pointer-events: none; z-index: 8; }
.pr-sc { background: radial-gradient(70% 90% at 12% 30%, rgba(255, 196, 110, .22), transparent 60%), #1A1F2B; }
.pr-tab { position: absolute; left: 50%; top: calc(var(--cy) * 100%); background: #17181C; box-shadow: 0 0 0 1.5px #3A3D44 inset, 0 40px 90px rgba(0, 0, 0, .55); }
.pr-scr { position: absolute; overflow: hidden; background: #F7F6F2; color: var(--st-ink); font-family: var(--st-sans); }
.pr-top { display: flex; justify-content: space-between; align-items: center; padding: .8em 1.1em; border-bottom: 1px solid rgba(21, 23, 28, .08); font-size: .82em; font-weight: 600; color: #4A4F59; }
.pr-top b { color: var(--st-ink); }
.pr-body { position: relative; padding: 1em 1.1em; height: calc(100% - 3em); }
.pr-card { position: absolute; left: 1.1em; right: 1.1em; padding: .75em .95em; border-radius: .7em; background: #fff; box-shadow: 0 0 0 1px rgba(21, 23, 28, .07), 0 .4em 1.2em rgba(21, 23, 28, .06); transform-origin: 50% 0; }
.pr-card .k { display: flex; justify-content: space-between; font-size: .7em; font-weight: 700; color: #6B6F78; margin-bottom: .45em; }
.pr-card .k b { color: var(--st-brand); }
.pr-card .t { font-family: var(--st-serif); font-size: .82em; line-height: 1.5; }
.pr-omr { display: flex; gap: .5em; margin-top: .7em; }
.pr-omr i { width: 1.5em; height: 1.5em; border-radius: 50%; display: grid; place-items: center; font-style: normal; font-size: .66em; box-shadow: inset 0 0 0 1.5px #A9ADB5; color: #6B6F78; position: relative; }
.pr-omr i.sel { background: var(--st-ink); color: #fff; box-shadow: none; }
.pr-omr i.ans { box-shadow: inset 0 0 0 2px var(--st-leaf); color: var(--st-leaf); }
.pr-mark { position: absolute; inset: -.35em; border-radius: 50%; border: 2px solid #D9534F; opacity: 0; transform: scale(.6); }
.pr-res { display: flex; gap: .4em; margin-top: .7em; font-size: .68em; font-weight: 600; opacity: 0; }
.pr-res span { padding: .25em .7em; border-radius: 99px; background: #FBE4E3; color: #9B2522; }
.pr-res span.k2 { background: #EEF0F3; color: #4A4F59; }
.pr-btn { display: inline-flex; margin-top: .7em; padding: .4em 1em; border-radius: .5em; background: var(--st-ink); color: #fff; font-size: .7em; font-weight: 700; transform-origin: 50% 50%; }
.pr-new .chk { position: absolute; right: .9em; top: .8em; width: 1.4em; height: 1.4em; overflow: visible; }
.pr-new .chk path { fill: none; stroke: var(--st-leaf); stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; stroke-dasharray: 30; stroke-dashoffset: 30; }
.pr-mastery { position: absolute; left: 1.1em; right: 1.1em; bottom: 1em; display: grid; grid-template-columns: auto 1fr; gap: .9em; align-items: center; padding: .9em 1em; border-radius: .7em; background: #fff; box-shadow: 0 0 0 1px rgba(21, 23, 28, .07); }
.pr-ring { width: 3.6em; height: 3.6em; position: relative; }
.pr-ring svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.pr-ring circle { fill: none; stroke-width: 7; }
.pr-ring .bg { stroke: #E7E8EB; }
.pr-ring .fg { stroke: var(--st-leaf); stroke-linecap: round; stroke-dasharray: 283; stroke-dashoffset: 283; }
.pr-ring b { position: absolute; inset: 0; display: grid; place-items: center; font-size: .95em; font-variant-numeric: tabular-nums; }
.pr-m-t { font-size: .74em; color: #4A4F59; }
.pr-m-t b { display: block; font-size: 1.05em; color: var(--st-ink); }
.pr-dots { display: flex; gap: .35em; margin-top: .4em; }
.pr-dots i { width: .6em; height: .6em; border-radius: 50%; background: #E1E3E7; }
.pr-dots i.on { background: var(--st-leaf); }
.pr-next { margin-top: .5em; display: inline-flex; gap: .4em; align-items: center; font-size: .78em; font-weight: 700; color: var(--st-brand); opacity: 0; }

/* 복도 */
.cor-sc { background: #ECE7DD; }
.cor-cam { position: absolute; inset: 0; transform-origin: 50% 50%; }
.cor-ceil { position: absolute; left: 0; right: 0; top: 0; height: 10%; background: linear-gradient(#F6F4EE, #EFEBE2); border-bottom: 1px solid rgba(0, 0, 0, .05); }
.cor-wall { position: absolute; left: 0; right: 0; top: 10%; height: 56%; background: #EDE6DA; }
.cor-low { position: absolute; left: 0; right: 0; top: 57%; height: 11%; background: #CFC4B1; box-shadow: inset 0 3px 0 #BBAF9B; }
.cor-floor { position: absolute; left: 0; right: 0; bottom: 0; height: 32%; background: linear-gradient(#D8D3C9, #C7C1B6); }
.cor-floor::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, transparent 0 46%, rgba(255, 255, 255, .5) 50%, transparent 54%); background-size: 300px 100%; opacity: .35; }
.cor-track, .cor-lights { position: absolute; left: 0; top: 0; bottom: 0; will-change: transform; }
.cor-lights i { position: absolute; top: 4%; width: 120px; height: 10px; border-radius: 4px; background: #FFFDF5; box-shadow: 0 6px 30px rgba(255, 246, 214, .9); }
.cw-p { position: absolute; top: 10%; height: 56%; }
.cor-wp { position: absolute; top: 10%; height: 58%; width: 3.5%; min-width: 22px; background: linear-gradient(90deg, #E2DACB, #F2ECE2 45%, #DDD4C4); box-shadow: 0 0 0 1px rgba(0, 0, 0, .04); }
.cw { position: absolute; left: 9%; right: 9%; top: 12%; height: 58%; border-radius: 4px; background: #9EB2C4; box-shadow: 0 0 0 7px #D9DDD9, 0 0 0 9px #B9BEB9; overflow: hidden; }
.cw-in { position: absolute; top: 0; bottom: 0; left: -12%; right: -12%; }
.cw-in svg { width: 100%; height: 100%; }
.cw-glass { position: absolute; inset: 0; z-index: 2; background: linear-gradient(115deg, rgba(255, 255, 255, .28), rgba(255, 255, 255, 0) 40%, rgba(255, 255, 255, .12) 70%, rgba(255, 255, 255, 0)); pointer-events: none; }
.cw-sign { position: absolute; left: 50%; top: 1%; transform: translateX(-50%); padding: 4px 12px; border-radius: 3px; background: #2F3B57; color: #fff; font-size: 12px; font-weight: 700; letter-spacing: .04em; white-space: nowrap; }
.cw-note { position: absolute; left: 50%; top: 77%; transform: translateX(-50%); display: grid; justify-items: center; gap: 3px; text-align: center; white-space: nowrap; }
.cw-note b { font-size: 14px; font-weight: 700; color: var(--st-ink); }
.cw-note span { font-size: 12.5px; color: #5B5F68; }
.cw-dev { position: absolute; z-index: 1; }
.door { position: absolute; top: 10%; height: 58%; perspective: 900px; }
.door-frame { position: absolute; left: 0; right: 0; top: 6%; bottom: 0; background: #2C2F36; box-shadow: 0 0 0 8px #CFC7B8; }
.door-in { position: absolute; inset: 0; background: linear-gradient(#EEF2F5, #DCE3EA); overflow: hidden; }
.door-l, .door-r { position: absolute; top: 0; bottom: 0; width: 50%; background: #B9A68A; box-shadow: inset 0 0 0 2px rgba(0, 0, 0, .12); transform-style: preserve-3d; }
.door-l { left: 0; transform-origin: 0 50%; }
.door-r { right: 0; transform-origin: 100% 50%; }
.door-l::before, .door-r::before { content: ""; position: absolute; left: 22%; right: 22%; top: 10%; height: 34%; background: linear-gradient(135deg, #CFE0EC, #A9BFD0); box-shadow: inset 0 0 0 3px #8C7A60; }
.door-sign { position: absolute; left: 50%; top: -1%; transform: translateX(-50%); padding: 5px 16px; border-radius: 3px; background: #F7F6F2; box-shadow: 0 0 0 2px #2F3B57; color: #2F3B57; font-size: 15px; font-weight: 800; letter-spacing: .3em; z-index: 3; white-space: nowrap; }

/* Parser 문서 애니메이션 */
.px { position: absolute; inset: 0; pointer-events: none; z-index: 6; }
.px-page, .px-b, .px-doc { position: absolute; left: 0; top: 0; transform-origin: 0 0; }
.px-page { background: #fff center / 100% 100% no-repeat; box-shadow: 0 20px 60px rgba(30, 40, 60, .25); opacity: 0; }
.px-b { background-repeat: no-repeat; background-color: #fff; border-radius: 4px; opacity: 0; box-shadow: 0 10px 30px rgba(30, 40, 60, .2); }
.px-b .mh { position: absolute; border-radius: 3px; background: rgba(43, 81, 156, .14); box-shadow: inset 0 0 0 1.5px rgba(43, 81, 156, .7); opacity: 0; }
.px-b .vec { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; overflow: visible; }
.px-doc { background: #fff; border-radius: 6px; box-shadow: 0 20px 60px rgba(30, 40, 60, .25); opacity: 0; overflow: hidden; }
.px-doc .bar { height: 7%; background: #2B519C; color: #fff; display: flex; align-items: center; justify-content: space-between; padding: 0 4%; font-size: 12px; font-weight: 700; }
.px-doc .bar span { padding: 2px 8px; border-radius: 99px; background: rgba(255, 255, 255, .2); font-size: 11px; }
.px-stat { position: absolute; display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; opacity: 0; }
.px-stat span { font-size: 12.5px; font-weight: 600; padding: 5px 11px; border-radius: 99px; background: #fff; box-shadow: 0 0 0 1px rgba(21, 23, 28, .08); color: #2a2d34; }
.px-stat span.ok { background: #DDF1EA; color: #006F55; }

/* GROVE 문항 DB 애니메이션 */
.gv { position: absolute; inset: 0; pointer-events: none; z-index: 6; }
.gv-pg { position: absolute; left: 0; top: 0; width: 86px; height: 112px; padding: 9px; border-radius: 4px; background: #fff; box-shadow: 0 0 0 1px rgba(21, 23, 28, .08), 0 8px 20px rgba(0, 0, 0, .18); display: grid; gap: 5px; align-content: start; transform-origin: 50% 50%; opacity: 0; }
.gv-pg i { display: block; height: 4px; border-radius: 2px; background: #DCDCD6; }
.gv-pg i:nth-child(1) { width: 40%; background: #9AA0AA; }
.gv-pg i:nth-child(3) { width: 80%; } .gv-pg i:nth-child(5) { width: 62%; }
.gv-pg em { position: absolute; left: 7px; bottom: 7px; right: 7px; font-style: normal; font-size: 9.5px; font-weight: 700; color: #1E3A71; background: #D8E5FD; border-radius: 99px; padding: 1px 6px; text-align: center; opacity: 0; white-space: nowrap; overflow: hidden; }
.gv-pg.match em { background: var(--st-marker); color: #4A3700; }
.gv-search { position: absolute; display: flex; align-items: center; gap: 10px; height: 46px; padding: 0 16px; border-radius: 12px; background: #fff; box-shadow: 0 0 0 1px rgba(21, 23, 28, .1), 0 12px 30px rgba(0, 0, 0, .25); font-size: 15px; font-weight: 600; color: var(--st-ink); opacity: 0; white-space: nowrap; }
.gv-search svg { width: 18px; height: 18px; flex: 0 0 18px; stroke: #6B6F78; fill: none; stroke-width: 2; }
.gv-search .caret { width: 1.5px; height: 18px; background: var(--st-brand); animation: caret 1s steps(1) infinite; }
@keyframes caret { 50% { opacity: 0; } }
.gv-sheet { position: absolute; background: #fff; border-radius: 6px; box-shadow: 0 24px 70px rgba(0, 0, 0, .35); opacity: 0; overflow: hidden; }
.gv-sheet .hd { display: flex; justify-content: space-between; align-items: end; margin: 6% 7% 0; padding-bottom: 3%; border-bottom: 2px solid var(--st-ink); font-size: 13px; font-weight: 700; color: var(--st-ink); }
.gv-sheet .hd small { font-weight: 500; color: #6B6F78; font-size: 11.5px; }

/* 피날레 */
.fin-sc { background: linear-gradient(#EEF2EC, #F4F5EF); }
.fin-lbl { font-family: var(--st-sans); font-size: 15px; font-weight: 700; fill: #2F3B57; }

/* 디버그 */
.mdbg { position: fixed; left: 12px; bottom: 12px; z-index: 990; padding: 10px 12px; border-radius: 10px; background: rgba(10, 12, 16, .86); color: #9FF2C6; font: 11.5px/1.5 ui-monospace, Menlo, monospace; white-space: pre; pointer-events: none; }

/* 이야기 뒤: 크롤 가능한 설명 */
.after-story { position: relative; padding-block: clamp(96px, 14vh, 160px); background: var(--bg); }
.after-story .h2 { max-width: 16ch; }
.as-steps { list-style: none; margin: 56px 0 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px 48px; counter-reset: as; }
.as-steps li { counter-increment: as; border-top: 1px solid var(--line); padding-top: 18px; }
.as-steps li::before { content: counter(as, decimal-leading-zero); display: block; font-size: 12px; font-weight: 700; letter-spacing: .14em; color: var(--brand); font-variant-numeric: tabular-nums; }
.as-steps h3 { font-size: 20px; margin-top: 10px; }
.as-steps p { margin-top: 8px; color: var(--fg-2); font-size: 15px; }
.as-prod { margin-top: 64px; display: flex; flex-wrap: wrap; gap: 10px 28px; font-size: 15px; color: var(--fg-2); }
.as-prod a { color: var(--fg); font-weight: 600; text-decoration: underline; text-decoration-color: var(--line-2); text-underline-offset: 4px; }
@media (hover: hover) and (pointer: fine) { .as-prod a:hover { text-decoration-color: var(--brand); } }
@media (max-width: 900px) { .as-steps { grid-template-columns: 1fr; gap: 28px; } }

/* 모션 줄이기: 장면은 정지 화면으로, 바뀔 때만 짧게 교차 */
@media (prefers-reduced-motion: reduce) {
  .sc *, .ls-ui * { animation: none !important; }
  .ls-stage.rm-swap .sc, .ls-stage.rm-swap .ls-copy { transition: opacity 220ms ease; }
}
@media (max-aspect-ratio: 1/1) {
  .cor-sc { background: #F3F0E9; }
  .cor-sc .cor-cam { top: 22%; }
}
.gv-sheet { z-index: 1; }
.gv-pg { z-index: 2; }
.gv-search { z-index: 3; }