:root{
  --accent:#2A3048;
  --accent-soft:#E9ECF4;
  --ink:#000;
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{font-family:'Pretendard',-apple-system,sans-serif;color:#22262B;line-height:1.7;background:#fff;}
h1,h2,h3{font-family:'Noto Serif KR',serif;font-weight:600;color:#000;margin:0;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
.wrap{max-width:1280px;margin:0 auto;padding:0 24px;}
.mobile-only{display:none;}

/* header */
.site-header{background:#fff;border-bottom:1px solid #EDEDEB;position:sticky;top:0;z-index:50;}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:76px;gap:24px;}
.logo{display:flex;align-items:center;gap:8px;}
.logo-icon{width:32px;height:32px;color:var(--accent);flex:none;}
.logo-icon svg{width:100%;height:100%;}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-brand{font-size:19px;font-weight:800;letter-spacing:-0.02em;color:#000;font-family:'Noto Serif KR',serif;}
.logo-keyword{font-size:0.7rem;font-weight:400;color:var(--accent);letter-spacing:0.04em;}
.main-nav{display:flex;align-items:center;gap:32px;font-size:15px;font-weight:600;}
.main-nav>a{padding:8px 0;}
.nav-dropdown{position:relative;}
.dropdown-panel{display:none;position:absolute;top:100%;left:0;background:#fff;border:1px solid #EDEDEB;box-shadow:0 12px 28px rgba(0,0,0,.08);min-width:200px;padding:8px 0;border-radius:4px;}
.nav-dropdown:hover .dropdown-panel{display:block;}
.dropdown-panel ul{list-style:none;margin:0;padding:0;}
.dropdown-panel li a{display:block;padding:10px 20px;font-weight:500;white-space:nowrap;}
.dropdown-panel li a:hover{background:var(--accent-soft);color:var(--accent);}
.btn-cta{background:var(--accent);color:#fff;padding:12px 22px;font-weight:700;font-size:14px;border-radius:0;flex:none;}

/* section commons */
.section{padding:90px 0;}
.section-head{margin-bottom:44px;}
.section-label{display:block;font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--accent);margin-bottom:10px;}
.section-title{font-size:30px;line-height:1.4;}
.section-desc{margin-top:14px;color:#5B6169;font-size:15.5px;}

/* hero (card style, hero_id=1) */
.hero-wrap{padding:56px 24px 20px;}
.hero__inner{max-width:1280px;margin:0 auto;background:#F5F4F2;border-radius:26px;padding:52px;display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;}
.hero-eyebrow{font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--accent);margin-bottom:16px;display:block;}
.hero__inner h1{font-size:40px;line-height:1.35;margin-bottom:18px;}
.hero-sub{color:#4B5563;font-size:16px;line-height:1.8;margin-bottom:28px;}
.hero-cta{display:flex;gap:12px;margin-bottom:26px;}
.btn-fill{background:var(--accent);color:#fff;padding:15px 26px;font-weight:700;font-size:15px;}
.btn-outline{border:1.5px solid var(--accent);color:var(--accent);padding:15px 26px;font-weight:700;font-size:15px;}
.hero-checks{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px;font-size:14px;color:#4B5563;}
.hero-checks li:before{content:'✓ ';color:var(--accent);font-weight:800;}
.hero-photo img{width:100%;height:440px;object-fit:cover;border-radius:16px;box-shadow:0 20px 44px rgba(0,0,0,.14);}

/* champions-city hover frame */
.hover-frame{position:relative;}
.hover-frame::before,.hover-frame::after{content:'';position:absolute;width:0;height:0;pointer-events:none;border:1px solid transparent;}
.hover-frame::before{top:0;left:0;border-top-color:#000;border-left-color:#000;transition:width .3s ease,height .3s ease;}
.hover-frame::after{bottom:0;right:0;border-bottom-color:#000;border-right-color:#000;transition:width .3s ease .3s,height .3s ease .3s;}
.hover-frame:hover::before{width:100%;height:100%;}
.hover-frame:hover::after{width:100%;height:100%;}

/* why grid */
.why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.why-card{background:#fff;border:1px solid #ECECE9;border-radius:6px;padding:32px 26px;transition:transform .25s ease;}
.why-card:hover{transform:translateY(-4px);}
.why-card h3{font-size:18px;margin-bottom:10px;}
.why-card p{color:#5B6169;font-size:14.5px;margin:0;}

/* why-us zigzag */
.whyus-item{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;margin-bottom:64px;}
.whyus-item:last-child{margin-bottom:0;}
.whyus-item.rev .whyus-text{order:2;}
.whyus-item.rev .whyus-photo{order:1;}
.whyus-text h3{font-size:22px;margin-bottom:14px;}
.whyus-text p{color:#5B6169;font-size:15px;}
.whyus-photo img{width:100%;height:320px;object-fit:cover;border-radius:14px;}

/* courses grid */
.courses-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.course-card{background:#fff;border:1px solid #ECECE9;border-radius:6px;padding:28px 22px;}
.course-icon{display:block;width:40px;height:40px;color:var(--accent);margin-bottom:16px;}
.course-icon svg{width:100%;height:100%;}
.course-card h3{font-size:17px;margin-bottom:8px;}
.course-card p{color:#5B6169;font-size:13.5px;margin:0;}

/* after grid */
.after-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.after-card{background:var(--accent-soft);border-radius:6px;padding:30px 24px;}
.after-card h3{font-size:17px;margin-bottom:8px;color:var(--accent);}
.after-card p{color:#4B5563;font-size:14.5px;margin:0;}

/* about */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.about-text p{color:#4B5563;font-size:15.5px;margin-bottom:16px;}
.about-photo img{width:100%;height:400px;object-fit:cover;border-radius:14px;}
.about-badges{display:flex;gap:10px;margin-top:20px;flex-wrap:wrap;}
.about-badges span{background:var(--accent-soft);color:var(--accent);font-size:13px;font-weight:700;padding:8px 14px;border-radius:20px;}

/* home cases 3-col */
.cases-grid-home{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.case-thumb{aspect-ratio:1/1;overflow:hidden;border-radius:4px;}
.case-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.case-card:hover .case-thumb img{transform:scale(1.05);}
.case-card-body{padding:14px 2px;}
.case-cat{font-size:12px;color:var(--accent);font-weight:700;}
.case-card-body h3{font-size:16px;margin-top:6px;}
.cases-more{text-align:center;margin-top:36px;}

/* process */
.process-list{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid #E0E0DC;}
.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;}
.process-item p{font-size:13.5px;color:#5B6169;line-height:1.65;margin:0;}

/* faq */
.faq-list{max-width:820px;}
.faq-item{border-bottom:1px solid #ECECE9;padding:18px 0;}
.faq-item summary{cursor:pointer;font-weight:700;font-size:15.5px;list-style:none;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:before{content:'Q. ';color:var(--accent);}
.faq-item p{margin:12px 0 0;color:#5B6169;font-size:14.5px;}

/* closing */
.closing{position:relative;height:320px;background:var(--accent);display:flex;align-items:center;justify-content:center;}
.closing-overlay{display:none;}
.closing-inner{position:relative;text-align:center;color:#fff;max-width:640px;padding:0 24px;}
.closing-inner h2{color:#fff;font-size:30px;line-height:1.5;margin-bottom:14px;}
.closing-inner p{font-size:15px;margin-bottom:26px;opacity:.9;}
.btn-closing{display:inline-block;border:1.5px solid #fff;color:#fff;padding:15px 30px;font-weight:700;font-size:15px;}

/* footer */
.site-footer{background:#fff;border-top:1px solid #E5E5E5;padding:48px 0 100px;}
.footer-brand{font-size:18px;font-weight:800;margin-bottom:14px;}
.footer-line{font-size:13.5px;color:#5B6169;margin:6px 0;}
.footer-line a{color:var(--accent);font-weight:700;}
.footer-copy{font-size:12px;color:#9CA3AF;margin-top:18px;}
.footer-nav{display:flex;flex-wrap:wrap;gap:36px;margin:18px 0 22px;}
.footer-col h4{font-size:13px;color:#111;margin-bottom:8px;}
.footer-col ul{list-style:none;padding:0;margin:0;}
.footer-col li{margin:5px 0;}
.footer-col a{font-size:13px;color:#5B6169;}

.sitemap-cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:32px;}
.sitemap-cols h2{font-size:16px;margin-bottom:10px;}
.sitemap-cols ul{list-style:none;padding:0;margin:0;}
.sitemap-cols li{margin:6px 0;}
.sitemap-cols a{font-size:13.5px;color:var(--accent);}

/* mobile bar */
.mobile-bar{display:none;position:fixed;bottom:0;left:0;right:0;z-index:60;}
.mobile-bar a{flex:1;text-align:center;padding:16px 0;font-weight:700;font-size:14.5px;}
.mb-consult{background:#fff;color:var(--accent);border-top:1px solid #ECECE9;}
.mb-call{background:var(--accent);color:#fff;}

/* page hero (inner pages) */
.page-hero{background:linear-gradient(#F7F6F2,#F7F6F2);padding:64px 0 44px;}
.page-hero .section-label{margin-bottom:14px;}
.page-hero h1{font-size:32px;}
.page-hero p{color:#5B6169;margin-top:14px;font-size:15px;max-width:640px;}

/* category page body */
.cat-body{max-width:820px;font-size:15.5px;color:#333;}
.cat-body p{margin-bottom:18px;}
.region-table{width:100%;border-collapse:collapse;max-width:820px;font-size:14.5px;}
.region-table th,.region-table td{border:1px solid #ECECE9;padding:12px 16px;text-align:left;}
.region-table th{background:var(--accent-soft);color:var(--accent);width:160px;}

/* case list variable grid */
.case-list-grid{display:flex;flex-wrap:wrap;gap:24px;}
.cl-30{width:calc(30% - 16px);}
.cl-68{width:calc(68% - 16px);}
.cl-49{width:calc(49% - 12px);}
.case-list-grid .case-thumb{aspect-ratio:auto;}
.cl-30 .case-thumb{aspect-ratio:5/6;}
.cl-68 .case-thumb{aspect-ratio:9.45/5;}
.cl-49 .case-thumb{aspect-ratio:7/6;}

.pagination{display:flex;justify-content:center;gap:10px;margin:56px 0 0;}
.pagination a,.pagination span{width:38px;height:38px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:14px;color:#5B6169;}
.pagination .current{background:#000;color:#fff;}

/* case detail */
.kh-single__thumb{max-width:720px;margin:0 auto 40px;border-radius:12px;overflow:hidden;background:#fff;}
.kh-single__thumb img{width:100%;height:auto;max-height:520px;object-fit:contain;border-radius:12px;background:#fff;cursor:pointer;}
.kh-single__index{font-size:13px;color:#888;letter-spacing:.04em;margin-bottom:14px;display:block;}
.kh-single__title{font-size:28px;font-weight:800;line-height:1.35;margin:0 0 20px;}
.kh-related-links{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:36px;}
.kh-related-links a{background:var(--accent-soft);color:var(--accent);font-size:13px;font-weight:700;padding:8px 14px;border-radius:20px;}
.kh-single__body{max-width:760px;margin:0 auto;font-size:15.5px;color:#333;}
.kh-single__body h2{margin-top:48px;margin-bottom:16px;font-size:21px;}
.kh-single__body p{margin-bottom:16px;}
.kh-gallery{display:grid;grid-template-columns:1fr 1fr;gap:16px;max-width:760px;margin:32px auto;}
.kh-gallery.g3{grid-template-columns:repeat(3,1fr);}
.kh-gallery img{width:100%;height:auto;max-height:480px;object-fit:contain;background:#fff;border-radius:8px;cursor:pointer;}
.related-row{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:20px;}

/* lightbox */
.lb-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.88);z-index:200;align-items:center;justify-content:center;}
.lb-overlay.active{display:flex;}
.lb-overlay img{max-width:92vw;max-height:88vh;object-fit:contain;}
.lb-close{position:absolute;top:20px;right:30px;color:#fff;font-size:36px;cursor:pointer;}
.lb-arrow{position:absolute;top:50%;transform:translateY(-50%);color:#fff;font-size:28px;cursor:pointer;padding:10px;user-select:none;}
.lb-prev{left:16px;}
.lb-next{right:16px;}

@media(max-width:900px){
  .hero__inner{grid-template-columns:1fr;padding:32px 24px;border-radius:20px;}
  .hero-photo img{height:260px;}
  .why-grid,.after-grid{grid-template-columns:1fr 1fr;}
  .courses-grid{grid-template-columns:1fr 1fr;}
  .whyus-item,.whyus-item.rev{grid-template-columns:1fr;}
  .whyus-item.rev .whyus-text,.whyus-item.rev .whyus-photo{order:0;}
  .about-grid{grid-template-columns:1fr;}
  .cases-grid-home{grid-template-columns:1fr 1fr;}
  .related-row{grid-template-columns:1fr 1fr;}
  .cl-30,.cl-68,.cl-49{width:100%;}
  .process-list{grid-template-columns:1fr 1fr;}
  .process-item{padding:22px 16px;}
  .process-item:first-child{padding-left:16px;}
}
@media(max-width:767px){
  .mobile-bar{display:flex;}
  .main-nav{display:none;}
  .kh-gallery,.kh-gallery.g3{grid-template-columns:1fr;}
  .kh-single__title{font-size:22px;}
  .section{padding:64px 0;}
  .mobile-only{display:inline;}
  .why-grid,.after-grid,.courses-grid,.cases-grid-home{grid-template-columns:1fr 1fr;}
}