/* ==========================================================================
   한백하우징 · 로봇청소기설치 — Integrated Storage Studio visual system
   Architectural / Residential / Bespoke / Precise / Stone Minimal
   ========================================================================== */

:root{
  --bg:            #E6E9E3;
  --bg-warm:       #F0F2ED;
  --surface:       #FFFFFF;
  --ink:           #1A1D19;
  --ink-soft:      #5F655C;
  --ink-faint:     #8C9188;
  --line:          #D4D9CF;
  --line-strong:   #BEC5B7;
  --wood:          #41513E;
  --wood-dark:     #2E3A2B;
  --wood-soft:     #E4E8DF;
  --pop:           #CBD859;
  --radius-img:    4px;
  --radius-card:   8px;
  --radius-btn:    4px;
  --container:     1320px;
  --container-tight: 900px;
  --nav-h:         80px;
  --font: "Pretendard", -apple-system, BlinkMacSystemFont, "Malgun Gothic", sans-serif;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0; font-family:var(--font); background:var(--bg-warm); color:var(--ink);
  line-height:1.6; -webkit-font-smoothing:antialiased; word-break:keep-all;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ list-style:none; margin:0; padding:0; }
h1,h2,h3,h4,p{ margin:0; }
button{ font:inherit; background:none; border:none; cursor:pointer; }

.skip-link{
  position:absolute; left:-999px; top:0; background:var(--wood); color:#fff;
  padding:12px 18px; z-index:999;
}
.skip-link:focus{ left:0; }

.container{ max-width:var(--container); margin:0 auto; padding:0 56px; }
.container-tight{ max-width:var(--container-tight); margin:0 auto; padding:0 28px; }
@media (max-width:880px){ .container{ padding:0 22px; } }

/* section rhythm — NOT uniform padding across sections */
.pad-l{ padding:200px 0; }
.pad-m{ padding:150px 0; }
.pad-s{ padding:120px 0; }
@media (max-width:880px){
  .pad-l{ padding:96px 0; }
  .pad-m{ padding:88px 0; }
  .pad-s{ padding:76px 0; }
}

/* small numbered kicker — used sparingly, not on every section */
.kicker{
  display:flex; align-items:baseline; gap:10px; font-size:13px; font-weight:600;
  letter-spacing:.08em; color:var(--wood); margin-bottom:20px; font-variant-numeric:tabular-nums;
}
.kicker .n{ color:var(--ink-faint); }

h1,h2,h3{ font-weight:560; letter-spacing:-.015em; }
.display-1{ font-size:clamp(58px,7vw,108px); font-weight:520; line-height:1.02; letter-spacing:-.02em; }
.display-2{ font-size:clamp(40px,5vw,68px); font-weight:540; line-height:1.08; letter-spacing:-.015em; }
.statement{ font-size:clamp(26px,2.6vw,40px); font-weight:480; line-height:1.36; }
h3{ font-size:clamp(22px,2vw,30px); }
body,p{ font-size:18px; }
.support{ font-size:15px; color:var(--ink-soft); }

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:10px;
  padding:16px 28px; border-radius:var(--radius-btn); font-weight:600; font-size:16px;
  transition:background .18s ease, color .18s ease, border-color .18s ease, gap .18s ease;
  white-space:nowrap;
}
.btn-primary{ background:var(--wood); color:#fff; }
.btn-primary:hover{ background:var(--wood-dark); }
.btn-outline{ background:transparent; color:var(--ink); border:1px solid var(--line-strong); }
.btn-outline:hover{ border-color:var(--wood); color:var(--wood); }
.btn-arrow{
  display:inline-flex; align-items:center; gap:8px; font-weight:600; font-size:17px;
  color:var(--ink); border-bottom:1px solid var(--ink);
  padding-bottom:3px; transition:gap .2s ease, border-color .2s ease, color .2s ease;
}
.btn-arrow:hover{ gap:14px; color:var(--wood); border-color:var(--wood); }
.btn-arrow.on-dark{ color:#fff; border-color:rgba(255,255,255,.55); }
.btn-arrow.on-dark:hover{ color:var(--wood-soft); border-color:var(--wood-soft); }
.btn-sm{ padding:11px 20px; font-size:14.5px; }
.btn-lg{ padding:19px 34px; font-size:17px; }
.btn-block{ width:100%; }

/* ==========================================================================
   NAV — background blend on hero, solid + hairline on scroll. no shadow.
   ========================================================================== */
.site-nav{
  position:fixed; top:0; left:0; right:0; z-index:200;
  background:rgba(250,249,246,.72); backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:background .25s ease, border-color .25s ease;
}
.site-nav.is-scrolled{ background:rgba(250,249,246,.94); backdrop-filter:blur(10px); border-color:var(--line); }
.nav-inner{
  max-width:var(--container); margin:0 auto; padding:0 56px; height:var(--nav-h);
  display:flex; align-items:center; gap:40px;
}
.nav-brand{ display:flex; align-items:center; gap:11px; margin-right:auto; }
.nav-brand-text{ display:flex; flex-direction:column; line-height:1.24; }
.nav-brand-name{ font-size:16px; font-weight:600; color:var(--ink); }
.nav-brand-kw{ font-size:11px; font-weight:500; color:var(--ink-faint); }
.nav-links{ display:flex; align-items:center; gap:32px; }
.nav-links a{ font-size:14px; font-weight:600; letter-spacing:.04em; color:var(--ink-soft); }
.nav-links a:hover{ color:var(--wood); }
.nav-actions{ display:flex; align-items:center; gap:20px; }
.nav-cta{ font-size:14.5px; font-weight:600; color:var(--ink); display:inline-flex; align-items:center; gap:6px; }
.nav-cta:hover{ color:var(--wood); }
.nav-toggle{ display:none; flex-direction:column; gap:5px; width:24px; }
.nav-toggle span{ height:1.5px; width:100%; background:var(--ink); }
.nav-mobile{
  display:none; flex-direction:column; background:var(--bg-warm);
  padding:8px 22px 26px; border-top:1px solid var(--line);
}
.nav-mobile a{ padding:15px 2px; font-weight:600; border-bottom:1px solid var(--line); color:var(--ink); }
.nav-mobile .btn{ margin-top:16px; }

@media (max-width:960px){
  .nav-links{ display:none; }
  .nav-toggle{ display:flex; }
  .nav-cta{ display:none; }
  .site-nav.is-open .nav-mobile{ display:flex; }
  .site-nav.is-open{ background:var(--bg-warm); border-color:var(--line); }
}

/* ==========================================================================
   HERO — full-bleed photo + diagonal-cut panel (shard reveal), not a rectangle split
   ========================================================================== */
.hero{
  position:relative; min-height:calc(100vh - 20px); overflow:hidden; background:var(--ink);
}
.hero-media{ position:absolute; inset:0; z-index:0; }
.hero-media img{ width:100%; height:100%; object-fit:cover; }
.hero-media::after{
  content:""; position:absolute; inset:0; background:rgba(27,28,26,.18);
}
.hero-copy{
  position:relative; z-index:2; background:var(--bg-warm);
  width:min(700px,60%); min-height:100%;
  clip-path:polygon(0 0, 90% 0, 68% 100%, 0 100%);
  display:flex; flex-direction:column; gap:24px; justify-content:flex-start;
  padding:calc(var(--nav-h) + 72px) 96px 96px 56px;
}
.hero-title{ color:var(--ink); font-size:clamp(44px,5.6vw,92px); word-break:keep-all; overflow-wrap:break-word; }
.hero-statement{ color:var(--ink); max-width:480px; }
.hero-support{ color:var(--ink-soft); font-size:17px; max-width:420px; line-height:1.7; }
.hero-copy .btn-arrow{ width:max-content; }

@media (max-width:960px){
  .hero{ min-height:auto; display:flex; flex-direction:column; }
  .hero-media{ position:relative; inset:auto; height:52vh; order:1; }
  .hero-copy{
    position:relative; width:100%; min-height:auto; clip-path:none; order:2;
    padding:36px 22px 44px; gap:18px;
  }
}

/* ==========================================================================
   SERVICE — uniform index list (thumb + num + title/desc + arrow)
   ========================================================================== */
.svc-lede{ max-width:640px; margin-bottom:72px; }

.svc-index{ border-top:1px solid var(--line); }
.svc-row{
  display:flex; flex-wrap:wrap; align-items:center; gap:14px 20px;
  padding:24px 0; border-bottom:1px solid var(--line); transition:background .2s ease;
}
.svc-row:hover{ background:var(--bg); }
.svc-row .num{ order:1; font-size:14px; color:var(--ink-faint); font-variant-numeric:tabular-nums; }
.svc-row .thumb{
  order:2; width:64px; aspect-ratio:4/3; overflow:hidden; flex-shrink:0; background:var(--wood-soft);
}
.svc-row .thumb img{ width:100%; height:100%; object-fit:cover; display:block; }
.svc-row > span:not(.num):not(.go):not(.thumb){ order:3; flex:1 1 100%; }
.svc-row .title{ font-size:18px; font-weight:560; display:block; }
.svc-row .desc{ color:var(--ink-soft); font-size:14px; margin-top:4px; display:block; }
.svc-row .go{ order:4; font-size:14px; color:var(--wood-dark); font-weight:600; }

@media (min-width:760px){
  .svc-row{ flex-wrap:nowrap; gap:24px; }
  .svc-row .num{ width:24px; }
  .svc-row .thumb{ width:120px; }
  .svc-row .title{ font-size:19px; }
  .svc-row .desc{ font-size:14.5px; }
  .svc-row > span:not(.num):not(.go):not(.thumb){ flex:1 1 auto; }
  .svc-row .go{ opacity:0; transition:opacity .2s ease; }
  .svc-row:hover .go{ opacity:1; }
}
.svc-row.is-cta{ background:var(--wood-soft); }
.svc-row.is-cta .title{ color:var(--wood-dark); }

/* ==========================================================================
   PORTFOLIO — editorial gallery cases (no bento)
   ========================================================================== */
.case{ border-top:1px solid var(--line); padding:96px 0; }
.case:last-child{ border-bottom:1px solid var(--line); }
.case-head{ display:flex; justify-content:space-between; align-items:baseline; margin-bottom:36px; gap:20px; flex-wrap:wrap; }
.case-num{ font-size:14px; color:var(--ink-faint); font-variant-numeric:tabular-nums; }
.case-title{ font-size:clamp(22px,2.4vw,30px); font-weight:540; }

.case-media{ display:grid; grid-template-columns:1fr; gap:2px; }
.case-media:not(.split){ max-width:800px; }
.case-media.split{ grid-template-columns:1.4fr 1fr; }
.case-media img{ width:100%; height:100%; object-fit:cover; display:block; }
.case-media .tall{ aspect-ratio:4/3; }
.case-media .wide{ aspect-ratio:16/10; }
.case-caption{ margin-top:22px; max-width:560px; color:var(--ink-soft); font-size:15.5px; line-height:1.75; }
.case-caption .cap-label{ font-size:12.5px; letter-spacing:.08em; color:var(--wood); font-weight:600; margin-bottom:6px; display:block; }
@media (max-width:880px){ .case-media.split{ grid-template-columns:1fr; } .case{ padding:64px 0; } }

/* before/after pair inside a case */
.ba-pair{ display:grid; grid-template-columns:1fr 1fr; gap:2px; position:relative; }
.ba-pair figure{ position:relative; aspect-ratio:4/3; overflow:hidden; margin:0; }
.ba-pair img{ width:100%; height:100%; object-fit:cover; }
.ba-pair figcaption{
  position:absolute; left:16px; bottom:16px; font-size:12.5px; font-weight:600; letter-spacing:.06em;
  color:#fff; background:rgba(27,28,26,.62); padding:6px 12px;
}
@media (max-width:640px){ .ba-pair{ grid-template-columns:1fr; } }

/* ==========================================================================
   PROCESS — sticky label + swapping content (pure CSS sticky, no pin JS)
   ========================================================================== */
.process-wrap{ display:grid; grid-template-columns:280px 1fr; gap:64px; align-items:start; }
.process-sticky{ position:sticky; top:calc(var(--nav-h) + 40px); }
.process-sticky .kicker{ margin-bottom:14px; }
.process-sticky .display-2{ font-size:clamp(30px,3.4vw,44px); }
.process-line{ position:relative; width:2px; height:220px; background:var(--line); margin-top:32px; }
.process-line-fill{ position:absolute; top:0; left:0; width:100%; height:0; background:var(--pop); transition:height .3s ease; }

.process-steps{ display:flex; flex-direction:column; }
.p-step{ padding:56px 0; border-top:1px solid var(--line); opacity:.35; transition:opacity .3s ease; }
.p-step:last-child{ border-bottom:1px solid var(--line); }
.p-step.is-active{ opacity:1; }
.p-step .idx{ font-size:14px; color:var(--ink-faint); font-variant-numeric:tabular-nums; margin-bottom:10px; }
.p-step h3{ font-size:24px; font-weight:560; margin-bottom:12px; }
.p-step p{ color:var(--ink-soft); font-size:16px; max-width:520px; line-height:1.75; }

@media (max-width:880px){
  .process-wrap{ grid-template-columns:1fr; gap:8px; }
  .process-sticky{ position:relative; top:0; }
  .process-line{ display:none; }
}

/* ==========================================================================
   FAQ — hairline, generous click area, no rounded card
   ========================================================================== */
.faq-list{ border-top:1px solid var(--line); max-width:820px; }
.faq-item{ border-bottom:1px solid var(--line); }
.faq-q{
  width:100%; display:flex; justify-content:space-between; align-items:center; gap:24px;
  padding:30px 4px; text-align:left; font-size:18px; font-weight:560;
}
.faq-q .idx{ color:var(--ink-faint); font-size:14px; font-weight:600; margin-right:16px; font-variant-numeric:tabular-nums; }
.faq-q .plus{ position:relative; width:16px; height:16px; flex-shrink:0; }
.faq-q .plus::before, .faq-q .plus::after{ content:""; position:absolute; background:var(--ink); }
.faq-q .plus::before{ left:0; top:7px; width:16px; height:1.5px; }
.faq-q .plus::after{ left:7px; top:0; width:1.5px; height:16px; transition:transform .25s ease; }
.faq-item.is-open .faq-q .plus::after{ transform:rotate(90deg); }
.faq-a{ max-height:0; overflow:hidden; transition:max-height .3s ease; }
.faq-a p{ color:var(--ink-soft); font-size:16px; padding:0 4px 30px 44px; max-width:620px; line-height:1.75; }
.faq-item.is-open .faq-a{ max-height:220px; }

/* ==========================================================================
   CTA — photo-backed, large typography
   ========================================================================== */
.cta-photo{ position:relative; min-height:520px; display:flex; align-items:flex-end; overflow:hidden; }
.cta-photo img{ position:absolute; inset:0; width:100%; height:100%; object-fit:cover; z-index:0; }
.cta-photo::after{
  content:""; position:absolute; inset:0; z-index:1;
  background:linear-gradient(0deg, rgba(27,28,26,.86) 0%, rgba(27,28,26,.35) 55%, transparent 85%);
}
.cta-photo .inner{ position:relative; z-index:2; padding:64px 56px; width:100%; }
.cta-photo .statement{ color:#fff; max-width:620px; margin-bottom:28px; }
.cta-photo-btn{ box-shadow:0 14px 34px rgba(0,0,0,.35); }
@media (max-width:640px){ .cta-photo .inner{ padding:40px 22px; } .cta-photo{ min-height:420px; } }

/* ==========================================================================
   DETAIL PAGE (guide) — reskinned components
   ========================================================================== */
.detail-body{ display:grid; grid-template-columns:1fr; gap:72px; }
.lede{ font-size:19px; line-height:1.8; color:var(--ink); max-width:760px; }
.lede strong{ color:var(--wood-dark); font-weight:600; }

.callout{
  display:grid; grid-template-columns:auto 1fr; gap:20px; align-items:flex-start;
  background:var(--bg); border-left:2px solid var(--wood); padding:28px 32px; margin:8px 0;
}
.callout .mark{ width:8px; height:8px; border-radius:50%; background:var(--wood); flex-shrink:0; margin-top:10px; }
.callout p{ font-size:16px; color:var(--ink); line-height:1.75; }

.stat-row{ display:grid; grid-template-columns:repeat(3,1fr); gap:1px; background:var(--line); border:1px solid var(--line); }
.stat-card{ background:var(--surface); padding:30px 24px; }
.stat-card .label{ font-size:12.5px; color:var(--ink-faint); font-weight:600; margin-bottom:10px; letter-spacing:.04em; }
.stat-card .value{ font-size:17px; font-weight:560; line-height:1.4; color:var(--ink); }
@media (max-width:760px){ .stat-row{ grid-template-columns:1fr; } }

.check-list{ display:flex; flex-direction:column; }
.check-list li{
  display:flex; gap:18px; align-items:flex-start; font-size:16px; color:var(--ink-soft);
  padding:22px 4px; border-bottom:1px solid var(--line);
}
.check-list li .dot{
  font-size:13px; font-weight:600; color:var(--wood); flex-shrink:0; padding-top:2px; min-width:20px;
}
.check-list li strong{ color:var(--ink); font-weight:600; }

.compare{ display:grid; grid-template-columns:1fr 1fr; gap:1px; background:var(--line); border:1px solid var(--line); }
.compare-card{ padding:30px 28px; background:var(--surface); }
.compare-card.bad{ background:var(--bg); }
.compare-card .head{ font-weight:600; font-size:15px; margin-bottom:14px; letter-spacing:.02em; }
.compare-card.bad .head{ color:var(--ink-soft); }
.compare-card.good .head{ color:var(--wood-dark); }
.compare-card p{ font-size:15px; color:var(--ink-soft); line-height:1.75; }
@media (max-width:640px){ .compare{ grid-template-columns:1fr; } }

.links-title{ font-size:26px; font-weight:540; margin-bottom:32px; }

/* ==========================================================================
   CONSULTATION PAGE
   ========================================================================== */
.consult-hero{ padding:calc(var(--nav-h) + 64px) 0 80px; background:var(--bg-warm); text-align:center; }
.consult-hero .container{ display:flex; flex-direction:column; align-items:center; }
.consult-photo{ width:104px; height:104px; overflow:hidden; margin-bottom:28px; flex-shrink:0; }
.consult-photo img{ width:100%; height:100%; object-fit:cover; }
.consult-hero h1{ font-weight:540; margin-bottom:16px; }
.consult-hero p{ color:var(--ink-soft); max-width:480px; margin:0 auto; font-size:17px; }

.phone-block{
  background:var(--surface); border:1px solid var(--line);
  padding:56px 44px; text-align:center; margin-top:-8px; position:relative; z-index:2;
}
.phone-block .label{ font-size:13px; font-weight:600; color:var(--ink-faint); letter-spacing:.08em; }
.phone-number{ font-size:clamp(38px,6vw,60px); font-weight:560; color:var(--ink); margin:16px 0 32px; }
.contact-actions{ display:grid; grid-template-columns:1fr 1fr; gap:14px; max-width:480px; margin:0 auto; }
.contact-actions .btn{ padding:19px; font-size:16.5px; }
@media (max-width:560px){ .contact-actions{ grid-template-columns:1fr; } }

.consult-info{ display:grid; grid-template-columns:repeat(3,1fr); gap:1px; margin-top:72px; background:var(--line); border:1px solid var(--line); }
.info-card{ padding:28px; background:var(--surface); }
.info-card .k{ font-size:12.5px; font-weight:600; color:var(--ink-faint); margin-bottom:10px; letter-spacing:.04em; }
.info-card .v{ font-size:16px; font-weight:560; }
@media (max-width:820px){ .consult-info{ grid-template-columns:1fr; } }

/* ==========================================================================
   FOOTER — 3 column, services as vertical list
   ========================================================================== */
.site-footer{ background:var(--ink); color:rgba(255,255,255,.8); padding:96px 0 0; }
.footer-inner{
  max-width:var(--container); margin:0 auto; padding:0 56px 64px;
  display:grid; grid-template-columns:1.4fr 1fr 1fr; gap:48px;
}
.footer-brand{ font-size:19px; font-weight:560; color:#fff; margin-bottom:18px; }
.footer-biz-list li{ font-size:14px; line-height:2; opacity:.7; }
.footer-col-title{ font-size:12px; font-weight:600; letter-spacing:.1em; text-transform:uppercase; color:rgba(255,255,255,.45); margin-bottom:18px; }
.footer-vstack li{ margin-bottom:12px; }
.footer-vstack a,.footer-vstack span{ font-size:14.5px; opacity:.85; }
.footer-vstack a:hover{ opacity:1; text-decoration:underline; text-underline-offset:3px; }
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12); padding:22px 56px; text-align:left;
  font-size:12.5px; opacity:.45; max-width:var(--container); margin:0 auto;
}
@media (max-width:820px){
  .footer-inner{ grid-template-columns:1fr; gap:36px; padding:0 22px 44px; }
  .footer-bottom{ padding:20px 22px; }
}

/* ==========================================================================
   MOTION — small, intentional set (mask reveal / clip reveal / line progress)
   ========================================================================== */
.mask-reveal{ overflow:hidden; }
.mask-reveal .inner-mask{
  transform:translateY(100%); transition:transform .9s cubic-bezier(.16,1,.3,1);
}
.mask-reveal.is-visible .inner-mask{ transform:translateY(0); }

.img-reveal{ overflow:hidden; }
.img-reveal img{ transform:scale(1.12); transition:transform 1.1s cubic-bezier(.16,1,.3,1); }
.img-reveal.is-visible img{ transform:scale(1); }

.fade-in{ opacity:0; transition:opacity .8s ease; }
.fade-in.is-visible{ opacity:1; }