/* ===== Design tokens ===== */
:root{
  --white:#ffffff;
  --concrete:#eae7e1;
  --concrete-dark:#d8d3c9;
  --ink:#181614;
  --ink-soft:#5b564f;
  --coral:#ff5b3c;
  --terracotta:#b8461f;
  --line:#dcd7cd;
  --max:1200px;
  --ff:'Pretendard', -apple-system, BlinkMacSystemFont, 'Malgun Gothic', sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--ff);
  color:var(--ink);
  background:var(--white);
  line-height:1.6;
  word-break:keep-all;
  overflow-wrap:break-word;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
.wrap{max-width:var(--max);margin:0 auto;padding-left:24px;padding-right:24px;}
h1,h2,h3{margin:0;line-height:1.15;letter-spacing:-0.02em;}
p{margin:0;}

/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(6px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:68px;gap:24px;
}
.brand{font-weight:800;font-size:1.05rem;display:flex;flex-direction:column;line-height:1.1;}
.brand-sub{font-size:.6rem;letter-spacing:.14em;color:var(--coral);font-weight:700;}
.main-nav{display:flex;gap:22px;flex:1;justify-content:center;}
.main-nav a{font-size:.92rem;font-weight:600;color:var(--ink-soft);padding:6px 0;border-bottom:2px solid transparent;}
.main-nav a:hover,.main-nav a.active{color:var(--ink);border-color:var(--coral);}
.header-call{
  background:var(--ink);color:var(--white);font-weight:700;font-size:.88rem;
  padding:10px 20px;border-radius:999px;white-space:nowrap;
}
.header-call:hover{background:var(--coral);}
.nav-toggle{display:none;background:none;border:none;width:32px;height:24px;position:relative;cursor:pointer;}
.nav-toggle span,.nav-toggle::before,.nav-toggle::after{
  content:'';position:absolute;left:0;right:0;height:2px;background:var(--ink);
}
.nav-toggle::before{top:0;} .nav-toggle span{top:11px;} .nav-toggle::after{bottom:0;}

/* ===== Fixed call button (mobile bottom / desktop side) ===== */
.fixed-call{
  position:fixed;z-index:60;
  background:var(--coral);color:var(--white);font-weight:800;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 24px rgba(255,91,60,.35);
}
@media(min-width:861px){
  .fixed-call{
    right:28px;bottom:32px;width:64px;height:64px;border-radius:50%;font-size:.78rem;
  }
}
@media(max-width:860px){
  .fixed-call{
    left:0;right:0;bottom:0;height:58px;font-size:1rem;letter-spacing:.02em;
  }
}

/* ===== Section shell ===== */
section{padding:88px 0;}
.eyebrow{
  font-size:.72rem;font-weight:800;letter-spacing:.2em;color:var(--coral);
  text-transform:uppercase;margin-bottom:14px;display:block;
}
.section-head{max-width:640px;margin-bottom:48px;}
.section-head h2{font-size:clamp(1.6rem,3.6vw,2.4rem);font-weight:800;}
.section-head p{margin-top:14px;color:var(--ink-soft);font-size:1.02rem;}

/* ===== HERO ===== */
.hero{padding:0;border-bottom:1px solid var(--line);}
.hero-grid{
  display:grid;grid-template-columns:45% 55%;min-height:640px;
}
.hero-text{
  display:flex;flex-direction:column;justify-content:center;
  padding:64px 48px;
}
.hero-text .eyebrow{margin-bottom:20px;}
.hero-text h1{font-size:clamp(2.6rem,6vw,4.2rem);font-weight:800;}
.hero-text .lead{margin-top:26px;font-size:1.08rem;color:var(--ink-soft);max-width:420px;}
.hero-cta{
  margin-top:36px;display:inline-flex;align-items:center;gap:10px;
  background:var(--ink);color:var(--white);font-weight:700;
  padding:16px 30px;border-radius:999px;width:max-content;font-size:.98rem;
}
.hero-cta:hover{background:var(--coral);}
.hero-photo{position:relative;background:var(--concrete);overflow:hidden;}
.hero-photo img{
  width:88%;height:82%;object-fit:cover;position:absolute;right:0;bottom:0;
  border-top-left-radius:6px;
}
.hero-photo .frame-number{
  position:absolute;top:28px;left:28px;font-weight:800;font-size:.85rem;
  color:var(--ink);background:var(--white);padding:6px 12px;border-radius:999px;
}

/* ===== Project poster (studio) ===== */
.poster{background:var(--white);}
.poster-head{margin-bottom:40px;}
.poster-head .num{font-size:.85rem;font-weight:800;color:var(--coral);letter-spacing:.1em;}
.poster-head h2{font-size:clamp(1.6rem,3.4vw,2.3rem);font-weight:800;margin-top:10px;max-width:640px;}
.poster-grid{
  display:grid;grid-template-columns:1.4fr 1fr;gap:20px;align-items:start;
}
.poster-before{grid-column:1;grid-row:1;min-width:0;}
.poster-before img{width:100%;border-radius:4px;}
.poster-before .tag{display:inline-block;margin-top:14px;font-weight:800;font-size:.78rem;letter-spacing:.08em;color:var(--ink-soft);}
.poster-side{grid-column:2;grid-row:1;min-width:0;display:flex;flex-direction:column;gap:24px;}
.poster-note{
  background:var(--concrete);padding:26px;border-radius:4px;font-size:.96rem;color:var(--ink-soft);
}
.poster-after{margin-left:40px;position:relative;}
.poster-after img{width:100%;border-radius:4px;box-shadow:0 24px 48px rgba(0,0,0,.14);}
.poster-after .tag{
  position:absolute;top:-16px;left:-16px;background:var(--coral);color:var(--white);
  font-weight:800;font-size:.78rem;letter-spacing:.08em;padding:8px 16px;border-radius:999px;
}

/* ===== Project index (typographic) ===== */
.p-index{background:var(--ink);color:var(--white);}
.p-index .section-head h2,.p-index .section-head p{color:var(--white);}
.p-index .section-head p{color:#c9c5bd;}
.p-list{border-top:1px solid rgba(255,255,255,.16);}
.p-item{
  display:flex;align-items:baseline;gap:28px;padding:26px 0;
  border-bottom:1px solid rgba(255,255,255,.16);
  transition:opacity .6s ease,transform .6s ease;
}
.p-item.pre-reveal{opacity:0;transform:translateY(18px);}
.p-item.pre-reveal.in-view{opacity:1;transform:translateY(0);}
.p-item .p-num{font-size:1rem;font-weight:800;color:var(--coral);width:44px;flex:none;}
.p-item .p-name{font-size:clamp(1.5rem,4vw,2.4rem);font-weight:800;}
.p-item .p-desc{margin-left:auto;color:#c9c5bd;font-size:.9rem;max-width:280px;text-align:right;}

/* ===== Condition list (why repaint) ===== */
.condition{background:var(--white);}
.condition-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);}
.condition-item{background:var(--white);padding:34px 28px;}
.condition-item .n{font-weight:800;color:var(--coral);font-size:.82rem;letter-spacing:.08em;}
.condition-item h3{margin-top:12px;font-size:1.2rem;font-weight:800;}

/* ===== Secondary project (rooftop wall) ===== */
.project2{background:var(--concrete);}
.project2-grid{display:grid;grid-template-columns:1.3fr 1fr;gap:28px;align-items:stretch;}
.project2-after{position:relative;}
.project2-after img{width:100%;height:100%;object-fit:cover;border-radius:4px;min-height:420px;}
.project2-after .tag{
  position:absolute;bottom:20px;left:20px;background:var(--white);color:var(--ink);
  font-weight:800;font-size:.78rem;letter-spacing:.08em;padding:8px 16px;border-radius:999px;
}
.project2-side{display:flex;flex-direction:column;gap:22px;}
.project2-before{position:relative;}
.project2-before img{width:100%;border-radius:4px;}
.project2-before .tag{
  position:absolute;bottom:14px;left:14px;background:var(--ink);color:var(--white);
  font-weight:800;font-size:.72rem;letter-spacing:.08em;padding:6px 12px;border-radius:999px;
}
.project2-text h2{font-size:clamp(1.5rem,3.2vw,2.1rem);font-weight:800;}
.project2-text p{margin-top:14px;color:var(--ink-soft);}
.project2-steps{margin-top:20px;display:flex;flex-direction:column;gap:8px;}
.project2-steps span{font-size:.92rem;color:var(--ink-soft);}
.project2-steps b{color:var(--ink);font-weight:800;margin-right:8px;}

/* ===== Materials ===== */
.materials{background:var(--white);}
.material-row{
  display:flex;align-items:baseline;justify-content:space-between;gap:24px;
  padding:26px 0;border-bottom:1px solid var(--line);
}
.material-row:first-of-type{border-top:1px solid var(--line);}
.material-row .m-name{font-size:clamp(1.3rem,3vw,1.9rem);font-weight:800;flex:none;width:220px;}
.material-row .m-desc{color:var(--ink-soft);font-size:.96rem;max-width:520px;}

/* ===== Color block ===== */
.colorblock{padding:0;}
.colorblock-grid{display:grid;grid-template-columns:repeat(3,1fr);min-height:360px;}
.cb{display:flex;align-items:flex-end;padding:32px;color:var(--white);}
.cb1{background:var(--coral);}
.cb2{background:var(--terracotta);}
.cb3{background:var(--ink);}
.cb h3{font-size:1.4rem;font-weight:800;}
.colorblock-copy{background:var(--concrete);padding-top:56px;padding-bottom:56px;text-align:center;}
.colorblock-copy h2{font-size:clamp(1.5rem,3.4vw,2.2rem);font-weight:800;}
.colorblock-copy p{margin-top:14px;color:var(--ink-soft);max-width:720px;margin-left:auto;margin-right:auto;}

/* ===== Workflow (horizontal) ===== */
.workflow{background:var(--white);overflow-x:auto;}
.workflow-line{display:flex;gap:0;min-width:760px;}
.wf-step{flex:1;position:relative;padding:0 20px 0 0;}
.wf-step .wf-num{font-size:.78rem;font-weight:800;color:var(--coral);}
.wf-step h3{margin-top:10px;font-size:1.05rem;font-weight:800;}
.wf-step::after{
  content:'→';position:absolute;right:-4px;top:0;color:var(--concrete-dark);font-weight:800;font-size:1.3rem;
}
.wf-step:last-child::after{content:'';}

/* ===== Gallery strip (facility typography) ===== */
.facility{background:var(--ink);color:var(--white);}
.facility .section-head h2,.facility .section-head p{color:var(--white);}
.facility .section-head p{color:#c9c5bd;}
.facility-list{display:flex;flex-wrap:wrap;gap:18px 40px;}
.facility-list span{font-size:clamp(1.4rem,3.6vw,2.2rem);font-weight:800;color:#37332e;}
.facility-list span.on{color:var(--white);}

/* ===== Complete photo ===== */
.complete{text-align:center;}
.complete-photo{width:78%;margin:0 auto;border-radius:4px;overflow:hidden;}
.complete-photo img{width:100%;}
.complete .eyebrow2{display:block;margin-top:32px;font-weight:800;letter-spacing:.18em;color:var(--coral);font-size:.85rem;}
.complete p.copy{margin-top:12px;color:var(--ink-soft);max-width:480px;margin-left:auto;margin-right:auto;}

/* ===== NSEO list (horizontal project rows) ===== */
.nseo{background:var(--concrete);}
.nseo-row{
  display:flex;align-items:center;gap:24px;padding:24px 0;border-bottom:1px solid var(--concrete-dark);
}
.nseo-row:first-of-type{border-top:1px solid var(--concrete-dark);}
.nseo-row .tag{font-size:.78rem;font-weight:800;letter-spacing:.1em;color:var(--coral);width:100px;flex:none;}
.nseo-row .name{font-size:clamp(1.1rem,2.6vw,1.5rem);font-weight:800;flex:1;}
.nseo-row .arrow{font-size:1.3rem;color:var(--ink-soft);}
.nseo-row:hover .name{color:var(--coral);}

/* ===== FAQ ===== */
.faq-item{border-bottom:1px solid var(--line);padding:22px 0;}
.faq-item:first-of-type{border-top:1px solid var(--line);}
.faq-q{font-weight:800;font-size:1.02rem;display:flex;gap:12px;}
.faq-q .qmark{color:var(--coral);}
.faq-a{margin-top:10px;color:var(--ink-soft);padding-left:24px;}

/* ===== Body copy block ===== */
.body-copy-section .section-head{margin-left:auto;margin-right:auto;}
.body-copy{max-width:720px;margin-left:auto;margin-right:auto;}
.body-copy p{margin-bottom:18px;color:var(--ink-soft);}
.body-copy p:first-child{color:var(--ink);font-size:1.06rem;}

/* ===== Final CTA ===== */
.final-cta{background:var(--ink);color:var(--white);text-align:center;}
.final-cta h2{font-size:clamp(1.5rem,3.6vw,2.2rem);font-weight:800;max-width:560px;margin:0 auto;}
.final-cta .btn{
  margin-top:30px;display:inline-flex;background:var(--coral);color:var(--white);font-weight:800;
  padding:18px 40px;border-radius:999px;font-size:1.02rem;
}
.final-cta .btn:hover{background:var(--terracotta);}

/* ===== Footer ===== */
.site-footer{background:var(--white);border-top:1px solid var(--line);padding:48px 0 90px;}
.footer-nav{display:flex;flex-wrap:wrap;gap:18px;font-weight:600;font-size:.9rem;color:var(--ink-soft);margin-bottom:28px;}
.footer-biz{font-size:.86rem;color:var(--ink-soft);}
.footer-biz p{margin-bottom:4px;}
.footer-biz-name{font-weight:800;color:var(--ink);font-size:.95rem;}
.footer-copy{margin-top:20px;font-size:.78rem;color:#9a958c;}
@media(min-width:861px){.site-footer{padding-bottom:48px;}}

/* ===== Layout mirror variants (NSEO pages) ===== */
.poster-grid.rev{grid-template-columns:1fr 1.4fr;}
.poster-grid.rev .poster-before{grid-column:2;}
.poster-grid.rev .poster-side{grid-column:1;}
.project2-grid.rev{grid-template-columns:1fr 1.3fr;}
.project2-grid.rev .project2-after{order:2;}
.project2-grid.rev .project2-side{order:1;}

/* ===== Sub-page hero (typographic, no split photo) ===== */
.subhero{background:var(--concrete);padding:70px 0 56px;border-bottom:1px solid var(--concrete-dark);}
.subhero .eyebrow{margin-bottom:16px;}
.subhero h1{font-size:clamp(2.2rem,5.4vw,3.4rem);font-weight:800;}
.subhero p{margin-top:18px;color:var(--ink-soft);max-width:520px;font-size:1.02rem;}

/* ===== NSEO gallery variants ===== */
.gallery-section{background:var(--white);}
.photo-3x2{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;}
.photo-3x2 img{width:100%;height:190px;object-fit:cover;border-radius:4px;}
.photo-balance{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;}
.photo-balance img{width:100%;height:280px;object-fit:cover;border-radius:4px;}
.photo-strip{display:flex;gap:16px;overflow-x:auto;padding-bottom:10px;}
.photo-strip>img,.photo-strip>.gallery-figure{width:260px;flex:none;}
.photo-strip img{width:100%;height:190px;object-fit:cover;border-radius:4px;}
.photo-row{display:flex;flex-wrap:wrap;justify-content:center;gap:16px;}
.photo-row>img,.photo-row>.gallery-figure{flex:1 1 180px;max-width:280px;}
.photo-row img{width:100%;height:180px;object-fit:cover;border-radius:4px;}
.gallery-cap{margin-top:8px;font-size:.78rem;color:var(--ink-soft);}
.gallery-figure{display:flex;flex-direction:column;}
a.gallery-figure{text-decoration:none;color:inherit;}
a.gallery-figure:hover .gallery-cap{color:var(--coral);}

/* ===== Related service links (compact) ===== */
.related{background:var(--concrete);}
.related-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;}
.related-grid a{
  background:var(--white);border:1px solid var(--concrete-dark);border-radius:999px;
  padding:12px 22px;font-weight:700;font-size:.92rem;text-align:center;
}
.related-grid a:hover{background:var(--ink);color:var(--white);border-color:var(--ink);}

/* ===== Responsive ===== */
@media(max-width:860px){
  .main-nav{
    display:none;position:absolute;top:68px;left:0;right:0;background:var(--white);
    flex-direction:column;gap:0;border-bottom:1px solid var(--line);padding:8px 24px 16px;
  }
  .main-nav.open{display:flex;}
  .main-nav a{padding:12px 0;border-bottom:1px solid var(--line);}
  .header-call{display:none;}
  .nav-toggle{display:block;}
  .hero-grid{grid-template-columns:1fr;min-height:auto;}
  .hero-text{padding:52px 24px 40px;}
  .hero-photo{height:340px;}
  .poster-grid{grid-template-columns:1fr;}
  .poster-after{margin:0;}
  .condition-grid{grid-template-columns:1fr;}
  .project2-grid{grid-template-columns:1fr;}
  .colorblock-grid{grid-template-columns:1fr;}
  .material-row{flex-direction:column;gap:6px;}
  .material-row .m-name{width:auto;}
  .complete-photo{width:100%;}
  section{padding:60px 0;}
  .poster-grid.rev,.project2-grid.rev{grid-template-columns:1fr;}
  .poster-grid .poster-before,.poster-grid .poster-side{grid-column:1;grid-row:auto;}
  .poster-grid.rev .poster-before,.poster-grid.rev .poster-side{grid-column:1;grid-row:auto;}
  .project2-grid.rev .project2-after,.project2-grid.rev .project2-side{order:initial;}
  .photo-3x2,.photo-balance{grid-template-columns:repeat(2,1fr);}
  .poster-grid.poster-split{grid-template-columns:1fr 1fr;gap:14px;}
  .poster-grid.poster-split.rev .poster-before{grid-column:2;grid-row:1;}
  .poster-grid.poster-split.rev .poster-side{grid-column:1;grid-row:1;}
}
@media(max-width:520px){
  .photo-3x2,.photo-balance{grid-template-columns:1fr;}
  .related-grid{grid-template-columns:repeat(2,1fr);}
}
@media(max-width:860px) and (min-width:521px){
  .related-grid{grid-template-columns:repeat(3,1fr);}
}