/* 환기청정기 · 보성에이치테크 — font_id3(Gowun Batang+Pretendard) · accent_id7(forest) · deep_id3(딥틸) */
:root{
  --accent:#3E6B4A; --accent-soft:#E4EDE5; --accent-text:#FFFFFF;
  --deep:#0E2F2A; --bar-chrome:#E9EBEE;
  --ink:#000000; --desc:#4B5563; --bg:#FFFFFF; --line:#E5E5E5;
  --font-title:"Gowun Batang", serif;
  --font-body:"Pretendard","Pretendard Variable",sans-serif;
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{font-family:var(--font-body);color:var(--ink);background:#fff;letter-spacing:-0.02em;word-break:keep-all;-webkit-font-smoothing:antialiased;}
h1,h2,h3,.hero-title,.section-title{font-family:var(--font-title);}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
.wrap{max-width:1280px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-head{text-align:center;margin-bottom:48px;}
.section-title{font-size:32px;font-weight:700;margin:12px 0 0;white-space:normal;}
.section-desc{color:var(--desc);font-size:15.5px;margin-top:12px;}
.eyebrow{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:700;letter-spacing:0.12em;color:var(--accent);text-transform:uppercase;}
.eyebrow svg{flex-shrink:0;}

/* ---------- Header (joseon-center, B-22 scroll) ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;background:transparent;transition:background .3s ease,box-shadow .3s ease,border-color .3s ease;}
.header-wrap{max-width:1280px;margin:0 auto;padding:18px 24px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;}
.nav-left{display:flex;gap:26px;justify-self:start;}
.nav-right{display:flex;gap:26px;align-items:center;justify-self:end;}
.nav-left a,.nav-right a{font-size:15px;font-weight:500;color:#fff;transition:color .3s;}
.logo{display:flex;align-items:center;gap:8px;justify-self:center;color:#fff;transition:color .3s;}
.logo-icon{width:30px;height:30px;flex-shrink:0;}
.logo-icon svg{width:100%;height:100%;}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-brand{font-size:.92rem;font-weight:700;}
.logo-keyword{font-size:.68rem;font-weight:400;letter-spacing:.04em;opacity:.85;}
.btn-cta{background:var(--accent);color:var(--accent-text)!important;padding:9px 18px;border-radius:2px;font-weight:600;}
.nav-burger{display:none;}
.nav-mobile{display:none;}

.site-header.scrolled{background:var(--bar-chrome);border-bottom:1px solid #E5E7EB;box-shadow:0 1px 16px rgba(0,0,0,.06);}
.site-header.scrolled .nav-left a,.site-header.scrolled .nav-right a,.site-header.scrolled .logo{color:var(--ink);}
.site-header:not(.scrolled) .logo-keyword{color:#fff;}
.site-header:not(.scrolled){border-bottom:1px solid rgba(255,255,255,.25);}
/* pages without a dark hero image start scrolled-style immediately */
.no-hero .site-header{background:var(--bar-chrome);border-bottom:1px solid #E5E7EB;}
.no-hero .site-header .nav-left a,.no-hero .site-header .nav-right a,.no-hero .site-header .logo{color:var(--ink);}
/* logo-keyword must stay readable on light chrome backgrounds (scrolled + no-hero) */
.site-header.scrolled .logo-keyword,.no-hero .site-header .logo-keyword{color:var(--accent)!important;}

/* ---------- Home hero (hero_id3 editorial wide) ---------- */
.hero{padding:168px 0 0;background:#fff;}
.hero-top{max-width:1280px;margin:0 auto;padding:0 24px;display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:end;}
.hero-title{font-size:clamp(34px,4.4vw,54px);font-weight:700;line-height:1.28;margin:0 0 10px;}
.hero-title .accent{color:var(--accent);}
.hero-sub{font-size:17px;font-weight:600;color:var(--accent);margin:0 0 20px;font-family:var(--font-body);}
.hero-desc{color:var(--desc);font-size:16px;line-height:1.7;margin:0 0 28px;max-width:520px;}
.hero-cta{display:flex;gap:12px;}
.btn-primary{background:var(--accent);color:var(--accent-text);padding:14px 26px;border-radius:2px;font-weight:600;font-size:15px;}
.btn-outline{border:1px solid var(--ink);color:var(--ink);padding:14px 26px;border-radius:2px;font-weight:600;font-size:15px;}
.hero-meta{display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--desc);border-left:1px solid var(--line);padding-left:24px;}
.hero-meta b{color:var(--ink);font-weight:700;}
.hero-media{margin-top:56px;}
.hero-media img{width:100%;height:auto;max-height:620px;object-fit:cover;border-radius:4px;}

/* ---------- Cases (design_id1: 30apt 3-card) ---------- */
.cases-grid{max-width:1280px;margin:0 auto;padding:0 24px;display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.case-card{background:#fff;border:1px solid var(--line);position:relative;transition:transform .25s ease;overflow:hidden;}
.case-card .thumb{width:100%;aspect-ratio:1/1;overflow:hidden;}
.case-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.case-card:hover .thumb img{transform:scale(1.05);}
.case-card .body{padding:20px 20px 24px;}
.case-card .region{font-size:12px;color:var(--accent);font-weight:700;letter-spacing:.04em;}
.case-card h3{font-size:18px;font-weight:700;margin:8px 0 6px;font-family:var(--font-body);}
.case-card p{font-size:13.5px;color:var(--desc);margin:0;line-height:1.6;}
/* draw_id1: box hover border grow */
.case-card::before,.case-card::after{content:"";position:absolute;pointer-events:none;}
.case-card{--bw:0px;}
.case-card{box-shadow:inset 0 0 0 1px transparent;transition:transform .25s ease, box-shadow .5s ease;}
.case-card:hover{transform:translateY(-4px);box-shadow:inset 0 0 0 1px #111;}
.cases-more{text-align:center;margin-top:44px;}

/* ---------- Section variant: catalog-label (services) ---------- */
.catalog-head{display:flex;align-items:baseline;justify-content:space-between;border-bottom:1px solid var(--line);padding-bottom:18px;margin-bottom:36px;}
.catalog-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line);}
.catalog-item{padding:32px 22px 28px 0;border-right:1px solid var(--line);}
.catalog-item:nth-child(4n){border-right:none;}
.catalog-item .icn,.svc-icon,.apt-si-icon{display:block;width:48px;height:48px;color:var(--accent);margin-bottom:16px;flex-shrink:0;overflow:hidden;}
.catalog-item .icn svg,.svc-icon svg,.apt-si-icon svg{display:block;width:48px;height:48px;max-width:48px;max-height:48px;}
@media (max-width:767px){
  .catalog-item .icn,.svc-icon,.apt-si-icon{width:40px;height:40px;}
  .catalog-item .icn svg,.svc-icon svg,.apt-si-icon svg{width:40px;height:40px;max-width:40px;max-height:40px;}
}
.catalog-item h3{font-size:16.5px;font-weight:800;margin:0 0 8px;font-family:var(--font-body);}
.catalog-item p{font-size:13.5px;color:var(--desc);line-height:1.65;margin:0;}

/* ---------- Guide summary cards ---------- */
.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.guide-card{border:1px solid var(--line);padding:26px 22px;background:#fff;transition:box-shadow .3s;}
.guide-card:hover{box-shadow:0 8px 24px rgba(0,0,0,.06);}
.guide-card h3{font-size:16.5px;font-weight:700;margin:0 0 10px;}
.guide-card p{font-size:13.5px;color:var(--desc);line-height:1.6;margin:0 0 14px;}
.guide-card .more{font-size:13px;color:var(--accent);font-weight:700;}

/* ---------- FAQ (native details/summary) ---------- */
.faq-list{max-width:860px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{list-style:none;cursor:pointer;padding:22px 4px;font-size:16px;font-weight:700;display:flex;justify-content:space-between;gap:16px;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";font-size:22px;font-weight:400;color:var(--accent);flex-shrink:0;}
.faq-item[open] summary::after{content:"–";}
.faq-item p{margin:0 4px 22px;color:var(--desc);font-size:14.5px;line-height:1.7;}

/* ---------- Region cards ---------- */
.region-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;}
.region-card{border:1px solid var(--line);padding:18px 10px;text-align:center;font-weight:700;font-size:14.5px;transition:border-color .2s;}
.region-card:hover{border-color:var(--accent);color:var(--accent);}

/* ---------- Page hero (sub pages) ---------- */
.page-hero{position:relative;height:340px;display:flex;align-items:flex-end;background-size:cover;background-position:center;margin-bottom:0;}
.page-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,47,42,.35),rgba(14,47,42,.65));}
.page-hero .in{position:relative;z-index:1;max-width:1280px;margin:0 auto;padding:0 24px 40px;color:#fff;width:100%;}
.page-hero .crumb{font-size:13px;opacity:.85;margin-bottom:10px;}
.page-hero h1{font-size:clamp(28px,3.4vw,42px);font-weight:700;margin:0;}
.page-hero p{margin:10px 0 0;color:#EDEDED;font-size:15px;}

/* ---------- Case detail (case_detail_variant1 typography) ---------- */
.case-body-wrap{max-width:860px;margin:0 auto;padding:64px 24px 0;}
.case-top-img{width:550px;max-width:100%;height:410px;object-fit:cover;border-radius:18px;margin:0 auto 40px;cursor:zoom-in;}
.case-label{font-size:11px;color:#8A8F98;letter-spacing:.06em;margin-bottom:10px;}
.case-title{font-size:27px;font-weight:700;margin:0 0 36px;line-height:1.35;}
.case-content p{font-size:15px;color:#374151;line-height:1.85;margin:0 0 22px;font-weight:500;}
.stage-row{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:48px 0;}
.stage-row figure{margin:0;}
.stage-row img{width:100%;height:auto;max-height:500px;object-fit:contain;background:#F3F3F1;border-radius:12px;cursor:zoom-in;}
.stage-row figcaption{text-align:center;font-size:13px;color:var(--desc);margin-top:8px;font-weight:600;}
.rest-gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:48px 0;}
.rest-gallery img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:12px;cursor:zoom-in;}
.rest-gallery figure{margin:0;}
.rest-gallery figcaption{font-size:12.5px;color:var(--desc);margin-top:6px;}
.related-row{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:20px;}
.related-row a{display:block;border:1px solid var(--line);}
.related-row img{width:100%;height:180px;object-fit:cover;}
.related-row .rt{padding:14px 16px;font-size:14.5px;font-weight:700;}

/* ---------- Process (mandatory 4-col) ---------- */
.process-list{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid #E0E0DC;list-style:none;padding:0;margin:0;}
.process-item{padding:28px 20px 28px 24px;border-right:1px solid #E0E0DC;}
.process-item:first-child{padding-left:0;}
.process-item:last-child{border-right:none;}
.pnum{display:block;font-size:13px;font-weight:700;color:var(--accent);margin-bottom:10px;}
.process-item h3{font-size:16px;font-weight:800;color:#22262B;margin:0 0 8px;font-family:var(--font-body);}
.process-item p{font-size:13.5px;color:#5B6169;line-height:1.65;margin:0;}

/* ---------- Portfolio list (list_variant3 apt-journal) ---------- */
.pf-intro{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;margin-bottom:64px;}
.pf-intro .about-list{list-style:none;padding:0;margin:20px 0 0;display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--desc);}
.pf-intro .about-list li{position:relative;padding-left:18px;}
.pf-intro .about-list li::before{content:"";position:absolute;left:0;top:7px;width:7px;height:7px;background:var(--accent);}
.pf-intro img{border-radius:6px;width:100%;height:340px;object-fit:cover;}
.journal-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:40px 32px;}
.journal-card img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:4px;margin-bottom:18px;}
.journal-card .region{font-size:12px;font-weight:700;color:var(--accent);}
.journal-card h3{font-size:23px;font-weight:700;margin:8px 0 10px;}
.journal-card p{font-size:14px;color:var(--desc);line-height:1.65;}

.pf-pagination{display:flex;justify-content:center;align-items:center;gap:10px;margin-top:56px;}
.pf-page-num,.pf-page-nav{display:flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:50%;font-size:14px;font-weight:600;color:var(--desc);}
.pf-page-num.active{background:var(--ink);color:#fff;}
.pf-page-num:hover:not(.active){background:var(--accent-soft);color:var(--ink);}
.pf-page-nav{font-size:20px;color:var(--ink);}
.pf-page-nav.disabled{opacity:.3;pointer-events:none;}

/* ---------- Closing (B-25) ---------- */
.closing{position:relative;height:650px;background-size:cover;background-position:center;}
.closing-overlay{position:absolute;inset:0;background:rgba(19,19,19,.55);display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:24px;}
.closing-overlay h2{color:#fff;font-size:clamp(26px,3.2vw,38px);font-weight:700;margin:0 0 18px;}
.closing-quote{color:#F1F1F1;font-size:15.5px;max-width:560px;margin:0 0 28px;line-height:1.7;}
.closing-btn{border:1px solid #fff;color:#fff;padding:14px 34px;border-radius:0;font-weight:600;font-size:15px;}

/* ---------- Footer ---------- */
.site-footer{background:#fff;color:#000;border-top:1px solid var(--line);padding:56px 0 24px;}
.footer-wrap{max-width:1280px;margin:0 auto;padding:0 24px;display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap;}
.footer-biz p{margin:0 0 8px;font-size:13.5px;color:#333;line-height:1.6;}
.footer-brand{font-weight:700;font-size:15px;color:#000;}
.footer-links{display:flex;gap:20px;flex-wrap:wrap;align-content:flex-start;font-size:13.5px;color:#333;}
.copyright{text-align:center;font-size:12px;color:#9CA3AF;margin:40px 0 0;}
.mobile-only{display:none;}

/* ---------- Mobile bottom bar (always) ---------- */
.mobile-bar{display:none;}
/* ---------- Desktop bottom bar (B-23) ---------- */
.desktop-bar{position:fixed;left:0;right:0;bottom:0;z-index:900;background:var(--bar-chrome);border-top:1px solid #E5E7EB;box-shadow:0 -6px 22px rgba(0,0,0,.08);
  display:flex;align-items:center;justify-content:center;gap:18px;padding:14px 24px;transform:translateY(100%);opacity:0;transition:transform .3s ease,opacity .3s ease;}
.desktop-bar.show{transform:translateY(0);opacity:1;}
.desktop-bar-text{font-size:14px;color:#374151;font-weight:600;}
.desktop-bar-btn{padding:11px 20px;border-radius:2px;font-weight:600;font-size:14px;background:var(--accent);color:#fff;}
.desktop-bar-btn.ghost{background:transparent;border:1px solid var(--accent);color:var(--accent);}

/* ---------- Lightbox ---------- */
.lightbox{display:none;position:fixed;inset:0;background:rgba(0,0,0,.85);z-index:2000;align-items:center;justify-content:center;}
.lightbox.open{display:flex;}
.lightbox img{max-width:90vw;max-height:88vh;object-fit:contain;border-radius:4px;}
.lightbox-close{position:absolute;top:22px;right:28px;background:none;border:none;color:#fff;font-size:36px;cursor:pointer;line-height:1;}
.lightbox-nav{position:absolute;top:50%;transform:translateY(-50%);background:rgba(255,255,255,.12);border:none;color:#fff;font-size:22px;width:48px;height:48px;border-radius:50%;cursor:pointer;}
.lightbox-nav.prev{left:20px;} .lightbox-nav.next{right:20px;}

/* ---------- About / Contact ---------- */
.simple-page{max-width:860px;margin:0 auto;padding:72px 24px 40px;}
.simple-page h2{font-size:22px;margin:44px 0 16px;}
.simple-page p{font-size:15px;color:#374151;line-height:1.85;margin:0 0 18px;}
.contact-phone{display:inline-block;background:var(--accent);color:#fff;font-size:22px;font-weight:700;padding:20px 36px;border-radius:2px;margin:20px 0;}
.info-table{width:100%;border-collapse:collapse;margin:24px 0;}
.info-table th,.info-table td{border:1px solid var(--line);padding:12px 16px;text-align:left;font-size:14px;}
.info-table th{background:#F9F7F3;width:160px;}

/* ---------- Sitemap page ---------- */
.sm-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;}
.sm-cols h3{font-size:15px;border-bottom:1px solid var(--line);padding-bottom:10px;}
.sm-cols ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:8px;}
.sm-cols a{font-size:13.5px;color:#374151;}

/* ---------- Section bg helpers (8-color palette) ---------- */
.bg-a{background:#F9F7F3;} .bg-b{background:#F4F3EC;} .bg-c{background:#F3F3F1;} .bg-d{background:#F4F8FC;}

@media (max-width:900px){
  .hero-top{grid-template-columns:1fr;gap:32px;}
  .hero-meta{border-left:none;border-top:1px solid var(--line);padding-left:0;padding-top:16px;flex-direction:row;flex-wrap:wrap;gap:20px;}
  .cases-grid{grid-template-columns:repeat(2,1fr);}
  .catalog-grid{grid-template-columns:repeat(2,1fr);}
  .catalog-item{border-right:none!important;border-bottom:1px solid var(--line);padding:24px 0;}
  .region-grid{grid-template-columns:repeat(3,1fr);}
  .journal-grid{grid-template-columns:1fr;}
  .pf-intro{grid-template-columns:1fr;}
  .stage-row,.rest-gallery{grid-template-columns:repeat(3,1fr);gap:8px;}
  .guide-grid{grid-template-columns:1fr;}
  .sm-cols{grid-template-columns:1fr 1fr;}
}
@media (max-width:767px){
  .nav-left,.nav-right .btn-cta ~ a, .nav-right a:not(.btn-cta){display:none;}
  .nav-right{gap:0;}
  .nav-burger{display:flex;flex-direction:column;gap:5px;justify-self:end;background:none;border:none;cursor:pointer;padding:6px;}
  .nav-burger span{width:22px;height:2px;background:currentColor;color:#fff;}
  .site-header.scrolled .nav-burger span,.no-hero .nav-burger span{background:#000;}
  .header-wrap{grid-template-columns:1fr auto 1fr;}
  .nav-mobile{position:fixed;top:64px;left:0;right:0;background:#fff;flex-direction:column;padding:12px 24px 20px;box-shadow:0 8px 20px rgba(0,0,0,.08);z-index:999;}
  .nav-mobile.open{display:flex;}
  .nav-mobile a{padding:12px 0;border-bottom:1px solid var(--line);color:#000!important;}
  .desktop-bar{display:none!important;}
  .mobile-bar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:950;background:#fff;border-top:1px solid var(--line);box-shadow:0 -4px 16px rgba(0,0,0,.08);}
  .mobile-bar-btn{flex:1;text-align:center;padding:15px 0;font-weight:700;font-size:15px;color:#000;}
  .mobile-bar-btn.primary{background:var(--accent);color:#fff;}
  body{padding-bottom:56px;}
  .section{padding:64px 0;}
  .cases-grid,.catalog-grid,.region-grid{grid-template-columns:repeat(2,1fr);}
  .stage-row,.rest-gallery{grid-template-columns:repeat(2,1fr);}
  .related-row{grid-template-columns:1fr;}
  .closing{height:480px;}
  .footer-hours,.reg-no{white-space:nowrap;}
  .mobile-only{display:inline;}
  .sm-cols{grid-template-columns:1fr;}
}