/* ============================================================================
   올바른잇 · 들뜬타일보수  |  테마: split  |  팔레트: Clean Teal
   bg #FFFFFF / sub #F3F7F6 / text #12201D / muted #5F6D6A
   primary #136B63(teal) · accent #1FA099(teal light) · border #E2E8E6
   비대칭 좌우 분할 레이아웃 · 헤어라인(1px) 테두리 · 소프트 그림자 · 둥근 모서리(sm~md)
   외부 라이브러리 미사용 — 순수 CSS
   ========================================================================== */
:root{
  --primary:#136B63; --accent:#1FA099; --accent-deep:#0E5850;
  --bg:#FFFFFF; --sub:#F3F7F6; --white:#FFFFFF;
  --ink:#12201D; --muted:#5F6D6A; --line:#E2E8E6;
  --shadow-sm:0 1px 3px rgba(18,32,29,.06);
  --shadow:0 8px 24px rgba(18,32,29,.08);
  --shadow-lg:0 16px 40px rgba(18,32,29,.12);
  --r:10px; --r-sm:6px; --maxw:1200px;
  --ease:cubic-bezier(.16,1,.3,1);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:"Pretendard","Pretendard Variable",-apple-system,BlinkMacSystemFont,
    "Apple SD Gothic Neo","Malgun Gothic","맑은 고딕",system-ui,sans-serif;
  color:var(--ink); background:var(--bg); line-height:1.7; font-weight:400;
  word-break:keep-all; overflow-wrap:break-word; -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
svg.ic{width:1.25em;height:1.25em;flex:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
section{position:relative}
.bg-bg{background:var(--bg)} .bg-sub{background:var(--sub)} .bg-white{background:var(--white)}

/* ---------- 타이포 ---------- */
h1,h2,h3{font-weight:800;line-height:1.18;color:var(--ink);letter-spacing:-.01em}
.eyebrow{display:inline-flex;align-items:center;gap:.5rem;font-size:.78rem;font-weight:800;
  letter-spacing:.14em;text-transform:uppercase;color:var(--accent-deep)}
.sec-head{max-width:760px;margin:0 auto 44px;text-align:center}
.sec-head h2{font-size:clamp(1.7rem,4.4vw,2.5rem);margin:14px 0 14px}
.sec-head p{color:var(--muted);font-size:1.02rem}

/* ---------- 버튼 (둥근 모서리) ---------- */
.btn{display:inline-flex;align-items:center;gap:.55rem;border-radius:var(--r-sm);
  font-weight:800;font-size:1rem;padding:.95rem 1.7rem;cursor:pointer;border:1px solid transparent;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s,color .2s;white-space:nowrap}
.btn .ic{width:1.15em;height:1.15em}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow-sm)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.btn-outline{background:transparent;border-color:var(--line);color:var(--primary)}
.btn-outline.on-dark{border-color:rgba(255,255,255,.5);color:#fff}
.btn-outline:hover{background:var(--sub);border-color:var(--primary)}
.btn-outline.on-dark:hover{background:rgba(255,255,255,.14);border-color:#fff}
.btn-sm{padding:.7rem 1.2rem;font-size:.9rem}

/* ---------- 헤더 ---------- */
.hdr{position:fixed;inset:0 0 auto 0;z-index:80;background:rgba(255,255,255,.86);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.hdr-in{display:flex;align-items:center;justify-content:space-between;height:74px}
.logo{display:flex;align-items:center;gap:.6rem;font-weight:800;color:var(--primary);font-size:1.18rem}
.logo .mark{width:34px;height:34px;background:var(--primary);color:var(--accent);display:grid;place-items:center;font-weight:800;border-radius:9px}
.logo .mark svg{width:24px;height:24px;display:block}
.logo small{display:block;font-size:.66rem;font-weight:700;color:var(--muted)}
.hdr-cta{display:flex;align-items:center;gap:10px}

/* ---------- HERO (단일 이미지, 좌우 비대칭 분할) ---------- */
.hero{position:relative;min-height:640px;display:flex;align-items:center;padding:150px 0 60px;background:var(--sub)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center}
.hero-badge{display:inline-flex;align-items:center;gap:.5rem;background:#fff;
  border:1px solid var(--line);padding:.5rem 1rem;font-size:.84rem;font-weight:700;color:var(--accent-deep);border-radius:999px}
.hero h1{font-size:clamp(2.2rem,5.4vw,3.6rem);margin:18px 0 16px}
.hero .sub{font-size:clamp(1rem,2.2vw,1.15rem);color:var(--muted);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px 30px;margin-top:36px;padding-top:24px;border-top:1px solid var(--line)}
.hero-stats .st{font-size:.92rem;color:var(--muted);display:flex;align-items:center;gap:.5rem}
.hero-stats .st .ic{color:var(--accent);width:1.2em;height:1.2em}
.hero-media img{width:100%;height:100%;object-fit:cover;border-radius:var(--r);box-shadow:var(--shadow-lg);aspect-ratio:10/11}

/* 서브페이지 서브히어로 (단일 이미지, 좌우 비대칭 분할) */
.subhero{position:relative;min-height:420px;display:flex;align-items:center;padding:140px 0 48px;background:var(--sub)}
.subhero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center}
.subhero h1{font-size:clamp(1.9rem,4.6vw,2.9rem);margin:14px 0 14px}
.subhero-text p{max-width:520px;color:var(--muted)}
.subhero-media img{width:100%;height:100%;object-fit:cover;border-radius:var(--r);box-shadow:var(--shadow-lg);aspect-ratio:9/7}
.hero-actions.fade-in-up{margin-top:26px}

/* ---------- 시공사례 갤러리 ---------- */
.pad{padding:84px 0}
.pad-sm{padding:56px 0}
.gal{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.gcard{position:relative;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;
  background:#fff;box-shadow:var(--shadow-sm);transition:transform .25s var(--ease),box-shadow .25s var(--ease)}
.gcard:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.gcard .ph{display:block;width:100%;aspect-ratio:4/3;overflow:hidden;
  appearance:none;-webkit-appearance:none;border:0;margin:0;padding:0;background:#eee;font:inherit;cursor:zoom-in}
.gcard img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.gcard:hover img{transform:scale(1.05)}
.gcard .cap{padding:16px 18px;border-top:1px solid var(--line)}
.gcard .tag{font-size:.74rem;font-weight:800;letter-spacing:.04em;color:var(--accent-deep);text-transform:uppercase}
.gcard .cap h3{font-size:1.05rem;margin-top:5px;color:var(--ink)}
.gcard .cap p{font-size:.9rem;color:var(--muted);margin-top:4px;line-height:1.55}

/* ---------- 갤러리 라이트박스 ---------- */
.lb{position:fixed;inset:0;z-index:200;display:none;align-items:center;justify-content:center;
  background:rgba(15,20,19,.92);padding:24px;opacity:0;transition:opacity .25s var(--ease)}
.lb.open{display:flex;opacity:1}
.lb-fig{margin:0;max-width:min(1000px,92vw);max-height:90vh;display:flex;flex-direction:column;align-items:center;gap:14px}
.lb-img{max-width:100%;max-height:74vh;border-radius:var(--r);box-shadow:var(--shadow-lg);object-fit:contain;background:#000}
.lb-cap{text-align:center;color:#fff;max-width:640px}
.lb-cap .lb-tag{display:inline-block;font-size:.74rem;font-weight:800;letter-spacing:.04em;text-transform:uppercase;color:var(--accent)}
.lb-cap .lb-title{display:block;font-size:1.2rem;font-weight:800;margin-top:6px}
.lb-cap .lb-desc{display:block;font-size:.95rem;color:rgba(255,255,255,.78);margin-top:6px;line-height:1.6}
.lb-close{position:absolute;top:16px;right:18px;width:44px;height:44px;border:1px solid rgba(255,255,255,.3);border-radius:999px;
  background:rgba(255,255,255,.1);color:#fff;font-size:1.8rem;line-height:1;cursor:pointer;transition:background .2s}
.lb-nav{position:absolute;top:50%;transform:translateY(-50%);width:48px;height:48px;border:1px solid rgba(255,255,255,.3);border-radius:999px;
  background:rgba(255,255,255,.1);color:#fff;font-size:2rem;line-height:1;cursor:pointer;transition:background .2s}
.lb-close:hover,.lb-nav:hover{background:rgba(255,255,255,.22)}
.lb-nav.prev{left:16px}.lb-nav.next{right:16px}

/* ---------- 서비스 카드 ---------- */
.scards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.scards.cols2{grid-template-columns:repeat(2,1fr)}
.scard{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:30px 26px;box-shadow:var(--shadow-sm);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s}
.scard:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--accent)}
.scard .ico{width:54px;height:54px;background:var(--sub);color:var(--accent-deep);display:grid;place-items:center;margin-bottom:18px;border-radius:var(--r-sm)}
.scard .ico .ic{width:1.7em;height:1.7em}
.scard h3{font-size:1.2rem;margin-bottom:9px}
.scard p{color:var(--muted);font-size:.95rem}
.scard .more{margin-top:16px;display:inline-flex;align-items:center;gap:.4rem;font-weight:800;color:var(--accent-deep);font-size:.92rem}
.scard:hover .more .ic{transform:translateX(4px)}
.scard .more .ic{transition:transform .2s}

/* ---------- 프로세스 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:s}
.step{background:#fff;padding:28px 22px;border:1px solid var(--line);border-radius:var(--r);position:relative;box-shadow:var(--shadow-sm)}
.step .n{font-size:.8rem;font-weight:800;color:var(--accent-deep);letter-spacing:.1em}
.step .ico{width:48px;height:48px;background:var(--sub);color:var(--primary);display:grid;place-items:center;margin:12px 0 14px;border-radius:var(--r-sm)}
.step h3{font-size:1.08rem;margin-bottom:7px}
.step p{font-size:.9rem;color:var(--muted)}

/* ---------- 핵심정보 ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:30px 24px;text-align:center;box-shadow:var(--shadow-sm)}
.stat .big{font-size:1.9rem;font-weight:800;color:var(--accent-deep);line-height:1.1}
.stat .lbl{margin-top:8px;color:var(--muted);font-size:.92rem}

/* 본문 교차 */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:stretch}
.split.rev .txt{order:2}
.split img{border-radius:var(--r);box-shadow:var(--shadow);width:100%;height:100%;min-height:320px;aspect-ratio:4/3;object-fit:cover}
.split h2{font-size:clamp(1.5rem,3.6vw,2.2rem);margin-bottom:16px}
.split p{color:var(--muted);margin-bottom:14px}
.prose h3{font-size:1.25rem;margin:26px 0 10px}
.prose p{color:var(--muted);margin-bottom:14px}

/* 체크리스트 */
.checks{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.chk{display:flex;gap:.8rem;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:18px 20px;box-shadow:var(--shadow-sm)}
.chk .ic{color:var(--accent-deep);width:1.5em;height:1.5em;flex:none}
.chk b{display:block;color:var(--ink);margin-bottom:3px}
.chk span{color:var(--muted);font-size:.92rem}

/* ---------- FAQ ---------- */
.faq{max-width:840px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.qa{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow-sm)}
.qa>button{width:100%;text-align:left;background:none;border:0;padding:20px 22px;font-size:1.04rem;
  font-weight:800;color:var(--ink);cursor:pointer;display:flex;justify-content:space-between;gap:1rem;align-items:center;font-family:inherit;line-height:1.5}
.qa>button .ic{transition:transform .25s;color:var(--accent-deep);flex:none}
.qa.open>button .ic{transform:rotate(180deg)}
.qa .ans{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.qa .ans p{padding:0 22px 20px;color:var(--muted)}

/* ---------- 관련 페이지 ---------- */
.rel{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.rcard{display:flex;align-items:center;gap:.9rem;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:20px 22px;box-shadow:var(--shadow-sm);transition:.2s}
.rcard:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--accent)}
.rcard .ico{width:42px;height:42px;background:var(--sub);color:var(--accent-deep);display:grid;place-items:center;flex:none;border-radius:var(--r-sm)}
.rcard b{color:var(--ink);display:block}
.rcard span{font-size:.85rem;color:var(--muted)}

/* ---------- CTA ---------- */
.cta{position:relative;overflow:hidden;background:var(--primary);color:#fff;border-radius:var(--r);padding:64px 40px;text-align:center}
.cta>*{position:relative;z-index:2}
.cta h2{color:#fff;font-size:clamp(1.7rem,4.4vw,2.5rem)}
.cta p{color:rgba(255,255,255,.85);max-width:560px;margin:14px auto 26px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.cta-badges{display:flex;flex-wrap:wrap;gap:12px 26px;justify-content:center;margin-top:30px}
.cta-badges .b{display:flex;align-items:center;gap:.5rem;font-size:.9rem;color:rgba(255,255,255,.88)}
.cta-badges .ic{color:var(--accent);width:1.2em;height:1.2em}

/* ---------- Footer ---------- */
.ft{background:var(--primary);color:rgba(255,255,255,.72);padding:64px 0 28px;border-top:1px solid var(--accent)}
.ft a{color:rgba(255,255,255,.72);transition:.2s}
.ft a:hover{color:#fff}
.ft-grid{display:grid;grid-template-columns:1.6fr 1fr 1.2fr;gap:34px}
.ft h4{color:#fff;font-size:1rem;margin-bottom:16px;font-weight:800}
.ft .logo{color:#fff;margin-bottom:14px}
.ft .logo small{color:rgba(255,255,255,.55)}
.ft p{font-size:.9rem;line-height:1.8}
.ft ul{list-style:none;display:flex;flex-direction:column;gap:9px;font-size:.92rem}
.ft .biz{font-size:.82rem;color:rgba(255,255,255,.5);margin-top:14px;line-height:1.7}
.ft-bottom{border-top:1px solid rgba(255,255,255,.16);margin-top:40px;padding-top:22px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:.82rem;color:rgba(255,255,255,.5)}

/* ---------- Floating ---------- */
.floats{position:fixed;right:18px;bottom:18px;z-index:70;display:flex;flex-direction:column;gap:12px;align-items:flex-end}
.fab{width:56px;height:56px;border-radius:999px;display:grid;place-items:center;color:#fff;
  box-shadow:var(--shadow);cursor:pointer;position:relative}
.fab.consult{background:var(--accent)}
.fab.top{background:var(--primary);opacity:0;visibility:hidden;transform:translateY(10px);transition:.3s}
.fab.top.show{opacity:1;visibility:visible;transform:none}
.fab .ic{width:1.6em;height:1.6em}
.fab-label{position:absolute;right:66px;background:var(--primary);color:#fff;padding:.5rem .85rem;border-radius:var(--r-sm);
  font-size:.82rem;font-weight:700;white-space:nowrap;opacity:0;transform:translateX(8px);transition:.2s;pointer-events:none}
.fab.consult:hover .fab-label{opacity:1;transform:none}

/* ---------- 상담 페이지 ---------- */
.cons-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:40px;box-shadow:var(--shadow-sm)}
.cons-actions{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:26px 0}
.cons-actions .big{display:flex;flex-direction:column;gap:.4rem;align-items:flex-start;padding:26px;border-radius:var(--r);
  font-weight:800;font-size:1.15rem;color:#fff;transition:transform .2s var(--ease),box-shadow .2s}
.cons-actions .big small{font-weight:400;font-size:.85rem;opacity:.9}
.cons-actions .big.call{background:var(--primary)}
.cons-actions .big.sms{background:var(--accent-deep)}
.cons-actions .big:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.cons-actions .big .ic{width:1.6em;height:1.6em}
.need{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:8px}
.need .item{display:flex;gap:.8rem;background:var(--sub);padding:18px 20px;border-radius:var(--r)}
.need .item .ic{color:var(--accent-deep);width:1.6em;height:1.6em;flex:none}
.need .item b{color:var(--ink);display:block;margin-bottom:3px}
.need .item span{font-size:.9rem;color:var(--muted)}
.copybox{display:flex;align-items:center;gap:.7rem;justify-content:center;background:var(--sub);border:1px solid var(--line);border-radius:var(--r);
  padding:.7rem 1.2rem;font-weight:800;color:var(--primary);margin-top:18px;flex-wrap:wrap}
.copybox button{border:1px solid var(--primary);background:var(--primary);color:#fff;border-radius:var(--r-sm);padding:.4rem 1rem;font-size:.82rem;cursor:pointer;font-family:inherit}

/* ---------- 사이트맵 페이지 ---------- */
.smap-hero{background:var(--primary);color:#fff;padding:130px 0 56px;text-align:center}
.smap-hero h1{color:#fff}
.smap-hero .pill{display:inline-block;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.3);border-radius:999px;
  padding:.4rem 1rem;font-size:.85rem;margin-top:14px}
.smap-tools{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;margin-bottom:8px}
.search-box{position:relative;flex:1;min-width:240px}
.search-box .ic{position:absolute;left:16px;top:50%;transform:translateY(-50%);color:var(--muted)}
.search-box input{width:100%;padding:.85rem 1rem .85rem 2.8rem;border:1px solid var(--line);font-size:1rem;font-family:inherit;background:#fff;border-radius:var(--r-sm)}
.search-box input:focus{outline:2px solid var(--accent)}
.filters{display:flex;flex-wrap:wrap;gap:8px}
.filters button{border:1px solid var(--line);background:#fff;color:var(--muted);border-radius:999px;
  padding:.55rem 1rem;font-size:.9rem;font-weight:700;cursor:pointer;font-family:inherit;transition:.2s}
.filters button.active,.filters button:hover{background:var(--primary);color:#fff;border-color:var(--primary)}
.smap-count{color:var(--muted);font-size:.9rem;margin:18px 0}
.smap-cat{font-size:1.15rem;color:var(--ink);font-weight:800;margin:34px 0 16px;display:flex;align-items:center;gap:.5rem}
.smap-cat .ic{color:var(--accent-deep)}
.smap-list{display:flex;flex-direction:column;gap:2px;border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.smap-link{display:flex;align-items:center;gap:.9rem;background:#fff;padding:16px 18px;transition:.2s;border-bottom:1px solid var(--line)}
.smap-list .smap-link:last-child{border-bottom:0}
.smap-link:hover{background:var(--sub)}
.smap-link .ico{width:38px;height:38px;background:var(--sub);color:var(--accent-deep);display:grid;place-items:center;flex:none;border-radius:var(--r-sm)}
.smap-link b{color:var(--ink);display:block;font-size:1rem}
.smap-link p{color:var(--muted);font-size:.86rem;margin-top:3px}
.smap-empty{text-align:center;padding:50px;color:var(--muted)}

/* ---------- 404 ---------- */
.err{min-height:80vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:120px 20px 60px}
.err .code{font-size:clamp(4rem,16vw,9rem);font-weight:800;color:var(--ink);line-height:1}
.err h1{font-size:1.6rem;margin:10px 0 14px}
.err p{color:var(--muted);margin-bottom:26px}
.err .row{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}

/* ---------- 애니메이션 ---------- */
.fade-in-up{opacity:0;transform:translateY(24px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.fade-in-up.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.fade-in-up{opacity:1;transform:none}}

/* ---------- 반응형 ---------- */
@media (max-width:980px){
  .ft-grid{grid-template-columns:1fr 1fr}
  .steps,.stats{grid-template-columns:repeat(2,1fr)}
  .hero-grid,.subhero-grid{grid-template-columns:1fr;gap:36px}
  .hero-media,.subhero-media{order:-1}
  .hero-media img{aspect-ratio:16/10}
}
@media (max-width:820px){
  h1,h2,h3{line-height:1.3}
  .scards,.rel{grid-template-columns:1fr}
  .gal{grid-template-columns:repeat(2,1fr);gap:12px}
  .gcard .cap{padding:12px 12px}
  .gcard .cap h3{font-size:.95rem}
  .gcard .cap p{font-size:.82rem}
  .split{grid-template-columns:1fr}.split.rev .txt{order:0}
  .checks,.cons-actions,.need{grid-template-columns:1fr}
  .pad{padding:60px 0}
  .cta{padding:48px 24px}
  .cons-card{padding:28px 20px}
  .hero{min-height:0;padding:130px 0 48px}
  .subhero{min-height:0;padding:120px 0 40px}
}
@media (max-width:520px){
  .ft-grid{grid-template-columns:1fr}
  .stats,.steps{grid-template-columns:1fr}
  .stat,.step{padding:22px 20px}
  .lb{padding:14px}
  .lb-img{max-height:62vh}
  .lb-cap .lb-title{font-size:1.05rem}
  .lb-cap .lb-desc{font-size:.88rem}
  .lb-nav{width:40px;height:40px;font-size:1.6rem}
  .lb-nav.prev{left:8px}.lb-nav.next{right:8px}
}