/* 척척장부 소개 페이지 — 2026-10-15 리뉴얼. 모바일 우선, min-width 미디어쿼리만 사용.
   토큰: 종이색 바탕 + 장부 괘선 + 강조색 하나(--pri, 주요 버튼·체크에만). 이전 판은 private/backup-20261015-redesign/landing.css */
@font-face{font-family:"Pretendard";src:url(/assets/fonts/PretendardVariable.woff2) format("woff2");font-weight:45 920;font-display:swap}
:root{--paper:#fbf9f4;--cream:#f4efe4;--card:#fff;--ink:#14201b;--ink-2:#3c4740;--mut:#646b62;--rule:#e6dfd1;--rule-2:#d9d0be;--margin:#e3846b;--pri:#0f7a55;--pri-d:#0b5f42;--pri-2:#e3f2ea;--mint:#3ddc97;--r:16px;--r-l:22px;--w:1200px}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"Pretendard","Noto Sans KR","Malgun Gothic",-apple-system,system-ui,sans-serif;font-size:16px;line-height:1.6;word-break:keep-all;overflow-wrap:break-word}
img,video{max-width:100%;height:auto;display:block}
a{color:inherit}
h1,h2,h3{margin:0;letter-spacing:-.025em;line-height:1.22;font-weight:800}
p{margin:0}
.skip{position:fixed;top:-120px;left:16px;background:var(--ink);color:#fff;padding:12px 16px;border-radius:10px;z-index:50;min-height:44px}.skip:focus{top:8px}
:focus-visible{outline:3px solid var(--pri);outline-offset:3px;border-radius:6px}

/* 버튼 — 강조색은 주요 행동에만 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:44px;padding:10px 18px;border-radius:999px;font:inherit;font-size:15px;font-weight:700;text-decoration:none;border:1.5px solid transparent;cursor:pointer;transition:background-color .2s ease,border-color .2s ease,transform .2s ease;white-space:normal;text-align:center}
.btn.lg{min-height:52px;padding:12px 24px;font-size:16px}
.btn.primary{background:var(--pri);color:#fff}.btn.primary:hover{background:var(--pri-d)}
.btn.ghost{background:transparent;color:var(--ink);border-color:var(--rule-2)}.btn.ghost:hover{border-color:var(--ink);background:#fff}
.btn:active{transform:translateY(1px)}
.play-dot{width:22px;height:22px;border-radius:50%;background:var(--ink);position:relative;flex:none}.play-dot::after{content:"";position:absolute;left:8px;top:6px;border-left:8px solid #fff;border-top:5px solid transparent;border-bottom:5px solid transparent}

/* 머리말 */
.nav{position:sticky;top:0;z-index:20;background:rgba(251,249,244,.86);backdrop-filter:saturate(1.4) blur(10px);-webkit-backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--rule)}
.nav-in{max-width:var(--w);margin:0 auto;padding:0 16px;height:64px;display:flex;align-items:center;gap:12px}
.logo{display:inline-flex;align-items:center;gap:10px;text-decoration:none;font-weight:850;font-size:20px;letter-spacing:-.04em;min-height:44px;min-width:0}
.logo img{width:34px;height:34px;flex:none}.logo span{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.nav-links{display:none}
.nav-cta{margin-left:auto;display:flex;gap:8px;flex:none}
.hide-s{display:none}

/* 히어로 */
.hero{max-width:var(--w);margin:0 auto;padding:clamp(36px,7vw,88px) 16px clamp(28px,5vw,56px);display:grid;gap:clamp(28px,5vw,56px);grid-template-columns:minmax(0,1fr)}
.hero-copy{min-width:0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--pri);letter-spacing:.02em;margin-bottom:14px}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--margin);border-radius:2px}
.eyebrow.light{color:var(--mint)}
.hero h1{font-size:clamp(2.1rem,7.4vw,3.5rem);line-height:1.13;letter-spacing:-.045em}
.lead{margin-top:18px;font-size:clamp(1rem,2.4vw,1.15rem);color:var(--ink-2);max-width:34em}
.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}.actions.center{justify-content:center}
.assure{margin-top:20px;display:flex;gap:8px;align-items:flex-start;font-size:14px;color:var(--mut)}
.tick{flex:none;width:20px;height:20px;border-radius:50%;background:var(--pri-2);position:relative;margin-top:2px}.tick::after{content:"";position:absolute;left:6px;top:4px;width:5px;height:9px;border:solid var(--pri);border-width:0 2px 2px 0;transform:rotate(45deg)}
.hero-media{min-width:0}
.frame{position:relative;background:#fff;border:1px solid var(--rule);border-radius:var(--r-l);overflow:hidden;box-shadow:0 1px 0 var(--rule),0 24px 60px -28px rgba(20,32,27,.35)}
.frame-bar{display:flex;align-items:center;gap:6px;height:34px;padding:0 12px;border-bottom:1px solid var(--rule);background:var(--paper)}
.frame-bar i{width:10px;height:10px;border-radius:50%;background:var(--rule-2)}
.frame-bar span{margin-left:10px;font-size:12px;color:var(--mut);min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.hero-video{width:100%;aspect-ratio:16/10;object-fit:cover;background:var(--cream)}
.frame-play{position:absolute;inset:34px 0 0 0;margin:auto;width:76px;height:76px;border-radius:50%;border:0;background:rgba(20,32,27,.82);cursor:pointer;display:grid;place-items:center;box-shadow:0 10px 30px rgba(20,32,27,.35);transition:transform .25s cubic-bezier(.2,.8,.2,1),background-color .2s ease}
.frame-play span{width:0;height:0;border-left:20px solid #fff;border-top:12px solid transparent;border-bottom:12px solid transparent;margin-left:5px}
.frame-play:hover,.frame-play:focus-visible{transform:scale(1.06);background:var(--pri)}
.media-note{margin-top:10px;font-size:12px;color:var(--mut);text-align:right}

/* 장부 띠 — 괘선과 왼쪽 여백선 */
.ledger-strip{max-width:var(--w);margin:0 auto;padding:0 16px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}
.ledger-row{position:relative;padding:18px 12px 18px 20px;border-top:1px solid var(--rule);min-width:0}
.ledger-row::before{content:"";position:absolute;left:8px;top:14px;bottom:14px;width:1.5px;background:var(--margin);opacity:.55}
.ledger-row b{display:block;font-size:clamp(1.6rem,5vw,2.2rem);font-weight:850;letter-spacing:-.03em;font-variant-numeric:tabular-nums}
.ledger-row span{font-size:13px;color:var(--mut)}

/* 구역 */
.section{max-width:var(--w);margin:0 auto;padding:clamp(56px,9vw,112px) 16px}
.section.paper{max-width:none;background:var(--cream)}
.section.paper>*{max-width:calc(var(--w) - 32px);margin-left:auto;margin-right:auto}
.sec-head{max-width:640px;margin-bottom:clamp(28px,5vw,48px)}
.sec-head h2,.director h2,.safety h2,.closing h2{font-size:clamp(1.75rem,5vw,2.75rem)}
.sec-head>p:last-child{margin-top:14px;color:var(--mut);font-size:clamp(1rem,2vw,1.08rem)}

/* 선 격자 벤토(21st feature-10 참고) — 하나의 둥근 틀을 괘선으로 나눔 */
.lattice{display:grid;grid-template-columns:minmax(0,1fr);background:var(--rule);gap:1px;border:1px solid var(--rule);border-radius:var(--r-l);overflow:hidden}
.cell{background:#fff;padding:clamp(22px,4vw,36px);min-width:0}
.cell .label{font-size:13px;font-weight:700;color:var(--pri);margin-bottom:10px}
.cell h3{font-size:clamp(1.2rem,3vw,1.45rem);margin-bottom:10px}
.cell p:not(.label){color:var(--ink-2);font-size:15px}
.cell.wide{display:grid;gap:24px;grid-template-columns:minmax(0,1fr)}
.cell-text{min-width:0}
.shot{margin:0;border:1px solid var(--rule);border-radius:var(--r);overflow:hidden;background:var(--paper);min-width:0}
.shot img{width:100%;aspect-ratio:16/10;object-fit:cover;object-position:top left}

/* 이용 흐름 — 장부 줄 */
.ledger{list-style:none;margin:0;padding:0;background:#fff;border:1px solid var(--rule);border-radius:var(--r-l);overflow:hidden}
.ledger li{position:relative;display:grid;grid-template-columns:44px minmax(0,1fr);gap:4px 12px;padding:22px 18px 22px 12px;border-top:1px solid var(--rule)}
.ledger li:first-child{border-top:0}
.ledger li::before{content:"";position:absolute;left:52px;top:0;bottom:0;width:1.5px;background:var(--margin);opacity:.45}
.ledger .no{font-weight:850;color:var(--pri);font-variant-numeric:tabular-nums;font-size:15px;padding-top:2px}
.ledger h3{font-size:1.1rem;margin-bottom:4px}
.ledger p{color:var(--ink-2);font-size:15px}
.ledger .who{grid-column:2;font-size:13px;color:var(--mut);margin-top:6px}

/* 원장님 화면 */
.director{display:grid;gap:40px;grid-template-columns:minmax(0,1fr);align-items:center}
.dir-copy{min-width:0}
.checks{list-style:none;padding:0;margin:24px 0 28px;display:grid;gap:16px}
.checks li{position:relative;padding-left:32px}
.checks li::before{content:"";position:absolute;left:0;top:3px;width:20px;height:20px;border-radius:50%;background:var(--pri-2)}
.checks li::after{content:"";position:absolute;left:7px;top:7px;width:5px;height:9px;border:solid var(--pri);border-width:0 2px 2px 0;transform:rotate(45deg)}
.checks b{display:block;font-size:16px}.checks span{color:var(--ink-2);font-size:15px}
.phones{position:relative;display:flex;justify-content:center;padding:12px 0 24px;min-width:0}
.phone{margin:0;width:min(62%,280px);border-radius:32px;border:8px solid var(--ink);overflow:hidden;background:var(--ink);box-shadow:0 30px 60px -30px rgba(20,32,27,.5);position:relative;z-index:2}
.phone img{width:100%;aspect-ratio:600/1100;object-fit:cover;object-position:top}
.phone.back{position:absolute;right:4%;top:44px;width:min(48%,220px);z-index:1;transform:rotate(4deg);opacity:.96}

/* 보안 — 진한 카드 */
.safety{background:var(--ink);color:#f3f1ea;border-radius:var(--r-l);padding:clamp(28px,6vw,64px);display:grid;gap:28px;grid-template-columns:minmax(0,1fr)}
.safety ul{list-style:none;margin:0;padding:0;display:grid;gap:0}
.safety li{padding:18px 0;border-top:1px solid rgba(255,255,255,.12)}
.safety li b{display:block;font-size:16px;margin-bottom:4px}
.safety li span{color:#c7cbc2;font-size:15px}

/* 질문 */
.faq{display:grid;gap:10px}
.faq details{background:#fff;border:1px solid var(--rule);border-radius:var(--r);padding:0 20px}
.faq summary{cursor:pointer;list-style:none;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;font-weight:700;padding:12px 0}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";flex:none;font-size:22px;font-weight:400;color:var(--mut);transition:transform .2s ease}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{padding:0 0 20px;color:var(--ink-2);font-size:15px}

/* 마무리 */
.closing{max-width:var(--w);margin:0 auto;padding:clamp(64px,10vw,120px) 16px;text-align:center}
.closing p{margin-top:14px;color:var(--mut)}

/* 바닥글 — 진한 둥근 카드 + 외곽선 워드마크(Runway 참고) + 사업자 정보(Contractbook 참고) */
.foot{padding:0 12px 12px}
.foot-card{max-width:calc(var(--w) + 40px);margin:0 auto;background:var(--ink);color:#e9e7df;border-radius:var(--r-l);padding:clamp(28px,5vw,56px) clamp(20px,5vw,56px) 0;overflow:hidden}
.foot-top{display:grid;gap:28px;grid-template-columns:minmax(0,1fr)}
.logo.light{color:#fff}
.foot-brand p{margin-top:12px;color:#b9beb4;font-size:14px}
.foot-cols{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.foot-cols b{display:block;font-size:13px;color:#fff;margin-bottom:6px}
.foot-cols a{display:flex;align-items:center;min-height:44px;color:#c7cbc2;text-decoration:none;font-size:14px}
.foot-cols a:hover{color:#fff}
.biz{margin:28px 0 0;padding:20px 0 0;border-top:1px solid rgba(255,255,255,.12);display:grid;gap:8px 28px;grid-template-columns:minmax(0,1fr)}
.biz div{display:flex;align-items:center;gap:10px;font-size:13px;min-width:0;min-height:24px}
.biz dt{color:#9aa096;flex:none}
.biz dd{margin:0;color:#e9e7df;min-width:0;overflow-wrap:anywhere}
.biz a{color:#e9e7df;display:inline-flex;align-items:center;min-height:44px}
.copy{margin-top:18px;font-size:13px;color:#9aa096}
.wordmark{margin-top:clamp(20px,4vw,40px);font-weight:900;font-size:clamp(4rem,19vw,15rem);line-height:1.1;letter-spacing:-.06em;color:transparent;-webkit-text-stroke:1.2px rgba(255,255,255,.22);white-space:nowrap;overflow:hidden;padding-bottom:.06em;user-select:none}

/* 영상 팝업(21st hero-video-dialog 참고: 배경 어둡게 + 커지며 등장) */
.vdlg{border:0;padding:0;background:transparent;max-width:min(1100px,calc(100% - 24px));width:100%;overflow:visible}
.vdlg::backdrop{background:rgba(12,18,15,.78)}
.vdlg[open] .vdlg-box{animation:vin .32s cubic-bezier(.2,.8,.2,1)}
@keyframes vin{from{opacity:0;transform:scale(.94)}to{opacity:1;transform:none}}
.vdlg-box{position:relative;background:#000;border-radius:var(--r);overflow:hidden}
.vdlg-video{width:100%;aspect-ratio:16/9;background:#000}
.vdlg-close{position:absolute;right:8px;top:8px;z-index:2;width:44px;height:44px;border-radius:50%;border:0;background:rgba(255,255,255,.92);color:var(--ink);font-size:18px;cursor:pointer}
.vdlg-note{background:#0f1512;color:#aab0a6;font-size:12px;padding:10px 14px}

@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.btn,.frame-play,.faq summary::after{transition:none}.vdlg[open] .vdlg-box{animation:none}}

@media(min-width:640px){
  .hide-s{display:inline-flex}
  .nav-in{padding:0 24px}
  .hero,.section,.closing,.ledger-strip{padding-left:24px;padding-right:24px}
  .ledger-strip{grid-template-columns:repeat(4,minmax(0,1fr))}
  .lattice{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cell.wide{grid-column:1/-1}
  .ledger li{grid-template-columns:56px minmax(0,1fr) auto;padding:24px 24px 24px 16px;align-items:start}
  .ledger li::before{left:64px}
  .ledger .who{grid-column:auto;margin-top:2px;white-space:nowrap}
  .biz{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(min-width:768px){
  .nav-links{display:flex;gap:4px;margin-left:24px}
  .nav-links a{display:inline-flex;align-items:center;min-height:44px;padding:0 12px;text-decoration:none;font-size:15px;color:var(--ink-2);border-radius:999px}
  .nav-links a:hover{background:var(--cream);color:var(--ink)}
  .foot-top{grid-template-columns:minmax(0,1.2fr) minmax(0,1fr)}
}
@media(min-width:1024px){
  .hero{grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);align-items:center}
  .lattice{grid-template-columns:repeat(3,minmax(0,1fr))}
  .cell.wide{grid-column:span 2;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);align-items:center}
  .cell.wide.rev{grid-column:2/span 2}
  .director{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:64px}
  .safety{grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);align-items:start}
  .safety li:first-child{border-top:0;padding-top:0}
  .faq{max-width:860px}
  .biz{grid-template-columns:repeat(4,minmax(0,1fr))}
  .btn{font-size:14px}.btn.lg{font-size:16px}
}
@media(min-width:1280px){.nav-in{padding:0 32px}}
@media(min-width:640px){.lattice>.cell:last-child{grid-column:1/-1}}
@media(min-width:1024px){.lattice>.cell:last-child{grid-column:auto}.cell.wide.rev{grid-column:span 2}}
/* 긴 글자 대응: 머리말·바닥글 링크 줄바꿈 허용 */
.nav-in{height:auto;min-height:64px;flex-wrap:wrap;row-gap:4px;padding-top:6px;padding-bottom:6px}
.nav-links{flex-wrap:wrap;min-width:0;flex:1 1 auto}
.nav-links a,.foot-cols a,.biz dd,.btn{overflow-wrap:anywhere;word-break:normal}
.foot-top>*,.foot-cols>div{min-width:0}
.hero-video.film{aspect-ratio:16/9;object-fit:contain;background:#14201b}