:root{
  --navy:#0e2a45;
  --navy-deep:#081a2c;
  --navy-soft:#1b4268;
  --gold:#c8a33c;
  --gold-light:#e3c979;
  --ice:#eef3f8;
  --paper:#fbfcfd;
  --line:#d3dce6;
  --ink:#1c2733;
  --muted:#5f707f;
  --topbar:36px;
  --navbar:70px;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--topbar) + var(--navbar));}
body{
  font-family:'Pretendard','Noto Sans KR',-apple-system,'Malgun Gothic',sans-serif;
  color:var(--ink);background:var(--paper);line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
.wrap{width:100%;max-width:1120px;margin:0 auto;padding:0 24px;}
.serif{font-family:'Gowun Batang',serif;}

/* ---------- topbar ---------- */
.topbar{
  height:var(--topbar);background:var(--navy-deep);color:#bfd0e0;
  font-size:12.5px;letter-spacing:.02em;
  display:flex;align-items:center;position:fixed;top:0;left:0;right:0;z-index:120;
}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;}
.topbar b{color:var(--gold-light);font-weight:500;}
.topbar .tb-right{display:flex;gap:18px;}

/* ---------- navbar ---------- */
.navbar{
  height:var(--navbar);position:fixed;top:var(--topbar);left:0;right:0;z-index:110;
  background:rgba(255,255,255,.94);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);transition:box-shadow .3s;
}
.navbar.scrolled{box-shadow:0 4px 24px rgba(14,42,69,.09);}
.navbar .wrap{height:100%;display:flex;align-items:center;justify-content:space-between;}
.brand{display:flex;align-items:baseline;gap:9px;}
.brand .mark{
  font-family:'Gowun Batang',serif;font-size:21px;font-weight:700;color:var(--navy);letter-spacing:-.01em;
}
.brand .sub{font-size:11.5px;color:var(--muted);letter-spacing:.08em;}
.nav-links{display:flex;gap:26px;font-size:14.5px;font-weight:500;}
.nav-links a{color:#3d4d5c;padding:6px 0;border-bottom:2px solid transparent;transition:.2s;}
.nav-links a:hover{color:var(--navy);border-bottom-color:var(--gold);}
.nav-cta{
  background:var(--navy);color:#fff;font-size:14px;font-weight:600;
  padding:11px 20px;border-radius:2px;transition:.25s;
}
.nav-cta:hover{background:var(--gold);color:var(--navy-deep);}
.burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px;}
.burger span{width:23px;height:2px;background:var(--navy);display:block;transition:.25s;}
.mobile-menu{
  display:none;position:fixed;top:calc(var(--topbar) + var(--navbar));left:0;right:0;z-index:105;
  background:#fff;border-bottom:1px solid var(--line);box-shadow:0 12px 24px rgba(0,0,0,.08);
}
.mobile-menu a{display:block;padding:15px 24px;border-bottom:1px solid var(--ice);font-size:15px;}
.mobile-menu.open{display:block;}

/* ---------- hero ---------- */
.hero{
  margin-top:calc(var(--topbar) + var(--navbar));
  background:
    radial-gradient(1100px 480px at 78% -12%, rgba(200,163,60,.20), transparent 62%),
    linear-gradient(158deg,var(--navy-deep) 0%,var(--navy) 52%,var(--navy-soft) 100%);
  color:#fff;position:relative;overflow:hidden;
  padding:86px 0 0;
}
.hero::after{
  content:"";position:absolute;inset:auto 0 0 0;height:1px;background:linear-gradient(90deg,transparent,var(--gold),transparent);
}
.snow{position:absolute;inset:0;pointer-events:none;opacity:.5;}
.snow i{
  position:absolute;top:-12px;display:block;width:4px;height:4px;border-radius:50%;
  background:#fff;opacity:.6;animation:fall linear infinite;
}
@keyframes fall{to{transform:translateY(112vh);}}
.hero-inner{position:relative;z-index:2;}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;font-size:12.5px;letter-spacing:.16em;
  color:var(--gold-light);border:1px solid rgba(200,163,60,.5);padding:7px 15px;margin-bottom:26px;
}
.hero h1{
  font-family:'Gowun Batang',serif;font-size:clamp(31px,5.4vw,58px);line-height:1.28;font-weight:700;
  letter-spacing:-.02em;margin-bottom:22px;
}
.hero h1 em{font-style:normal;color:var(--gold-light);}
.hero p.lead{font-size:clamp(15px,2vw,18px);color:#c6d6e4;max-width:640px;font-weight:300;margin-bottom:38px;}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:56px;}
.btn{
  display:inline-block;padding:15px 30px;font-size:15px;font-weight:600;border-radius:2px;transition:.25s;
  border:1px solid transparent;
}
.btn-gold{background:var(--gold);color:var(--navy-deep);}
.btn-gold:hover{background:var(--gold-light);transform:translateY(-2px);}
.btn-ghost{border-color:rgba(255,255,255,.4);color:#fff;}
.btn-ghost:hover{background:rgba(255,255,255,.1);border-color:#fff;}

/* signature: fact ledger */
.ledger{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid rgba(255,255,255,.18);
}
.ledger div{
  padding:26px 22px 34px;border-right:1px solid rgba(255,255,255,.12);
}
.ledger div:last-child{border-right:0;}
.ledger dt{font-size:11.5px;letter-spacing:.14em;color:#8fa7bd;margin-bottom:9px;}
.ledger dd{font-family:'Gowun Batang',serif;font-size:26px;font-weight:700;color:#fff;line-height:1.3;}
.ledger dd small{display:block;font-family:'Pretendard',sans-serif;font-size:12.5px;font-weight:400;color:#a8bccd;margin-top:5px;letter-spacing:0;}

/* ---------- deadline strip ---------- */
.deadline{
  background:var(--gold);color:var(--navy-deep);text-align:center;
  padding:14px 24px;font-size:15px;font-weight:600;letter-spacing:-.01em;
}
.deadline b{font-family:'Gowun Batang',serif;font-size:19px;}

/* ---------- sections ---------- */
section{padding:92px 0;}
section.alt{background:var(--ice);}
.s-head{margin-bottom:48px;}
.s-num{
  font-size:12px;letter-spacing:.2em;color:var(--gold);font-weight:600;display:block;margin-bottom:12px;
}
.s-head h2{
  font-family:'Gowun Batang',serif;font-size:clamp(25px,3.6vw,38px);font-weight:700;
  color:var(--navy);letter-spacing:-.02em;line-height:1.35;margin-bottom:14px;
}
.s-head p{color:var(--muted);font-size:16px;max-width:720px;font-weight:300;}

.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:26px;}
.card{
  background:#fff;border:1px solid var(--line);padding:32px 28px;transition:.28s;position:relative;
}
section.alt .card{background:#fff;}
.card:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(14,42,69,.09);border-color:#b9c8d6;}
.card h3{font-size:18.5px;color:var(--navy);margin-bottom:12px;font-weight:700;letter-spacing:-.01em;}
.card p{font-size:14.8px;color:#4a5b6a;font-weight:300;}
.card .tag{
  font-size:11.5px;letter-spacing:.1em;color:var(--gold);font-weight:600;display:block;margin-bottom:14px;
}

table{width:100%;border-collapse:collapse;font-size:15px;background:#fff;}
th,td{border:1px solid var(--line);padding:15px 18px;text-align:left;vertical-align:top;}
th{background:var(--ice);color:var(--navy);font-weight:600;width:27%;}
td b{color:var(--navy);}

/* timeline */
.tl{border-left:2px solid var(--line);margin-left:8px;}
.tl-item{position:relative;padding:0 0 40px 34px;}
.tl-item::before{
  content:"";position:absolute;left:-9px;top:6px;width:16px;height:16px;border-radius:50%;
  background:#fff;border:3px solid var(--gold);
}
.tl-item:last-child{padding-bottom:0;}
.tl-week{font-size:12.5px;letter-spacing:.14em;color:var(--gold);font-weight:600;margin-bottom:6px;}
.tl-item h4{font-size:19px;color:var(--navy);margin-bottom:10px;font-family:'Gowun Batang',serif;}
.tl-item p{font-size:15px;color:#4a5b6a;font-weight:300;}

/* two-col include list */
.inc{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--line);background:#fff;}
.inc > div{padding:30px 28px;}
.inc > div:first-child{border-right:1px solid var(--line);}
.inc h4{font-size:16px;margin-bottom:16px;color:var(--navy);letter-spacing:.02em;}
.inc h4 span{font-size:11.5px;color:#fff;background:var(--navy);padding:4px 9px;margin-right:9px;letter-spacing:.08em;}
.inc h4.out span{background:#8b98a4;}
.inc ul{list-style:none;font-size:14.8px;color:#4a5b6a;font-weight:300;}
.inc li{padding:7px 0 7px 17px;position:relative;border-bottom:1px dashed #e6ecf2;}
.inc li:last-child{border-bottom:0;}
.inc li::before{content:"";position:absolute;left:0;top:16px;width:6px;height:1px;background:var(--gold);}

/* faq */
.faq-item{border-bottom:1px solid var(--line);background:#fff;}
.faq-q{
  width:100%;text-align:left;background:none;border:0;cursor:pointer;padding:22px 52px 22px 26px;
  font-size:16.5px;font-weight:600;color:var(--navy);font-family:inherit;position:relative;line-height:1.6;
}
.faq-q::after{
  content:"+";position:absolute;right:24px;top:20px;font-size:24px;font-weight:300;color:var(--gold);transition:.25s;
}
.faq-item.open .faq-q::after{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;}
.faq-a p{padding:0 26px 24px;font-size:15px;color:#4a5b6a;font-weight:300;}

/* schedule chart */
.sched-note{
  border:1px dashed #c0d0de;background:#fff;padding:18px 22px;margin:0 0 44px;
  font-size:14.5px;color:var(--muted);font-weight:300;
}
.sched-note b{color:var(--navy);font-weight:600;}
.sched{margin:0 0 46px;border:1px solid var(--line);background:#fff;cursor:zoom-in;transition:.25s;}
.sched:hover{border-color:var(--gold);box-shadow:0 12px 30px rgba(14,42,69,.1);}
.sched img{width:100%;display:block;}
.sched figcaption{
  font-size:13px;color:var(--muted);padding:12px 16px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:12px;font-weight:300;
}
.sched figcaption b{color:var(--navy);font-weight:600;}
.lb.single .lb-nav{display:none;}
.lb.single img{max-width:min(96vw,900px);max-height:86vh;}

/* school photo + video */
.photo{margin:0 0 40px;background:#0e2a45;}
.photo img{width:100%;display:block;}
.photo figcaption{
  font-size:13px;color:#8fa7bd;padding:12px 16px;letter-spacing:.01em;font-weight:300;
}
.video-block{margin-top:56px;padding-top:48px;border-top:1px solid var(--line);}
.video-block h3{
  font-family:'Gowun Batang',serif;font-size:23px;color:var(--navy);margin-bottom:8px;
}
.video-block p.vd{color:var(--muted);font-size:15px;font-weight:300;margin-bottom:24px;max-width:640px;}
.video-frame{
  position:relative;padding-top:56.25%;background:var(--navy-deep);overflow:hidden;
  border:1px solid var(--line);
}
.video-frame iframe{position:absolute;inset:0;width:100%;height:100%;border:0;}

/* reviews gallery */
.gal{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.gal-item{
  background:#fff;border:1px solid var(--line);cursor:zoom-in;transition:.25s;overflow:hidden;
  display:flex;flex-direction:column;
}
.gal-item:hover{border-color:var(--gold);box-shadow:0 12px 28px rgba(14,42,69,.12);transform:translateY(-3px);}
.gal-item img{width:100%;height:230px;object-fit:cover;object-position:top center;background:#dfe7ef;}
.gal-item figcaption{padding:15px 16px 18px;border-top:1px solid var(--line);}
.gal-item strong{display:block;font-size:13px;color:var(--gold);letter-spacing:.02em;margin-bottom:6px;font-weight:600;}
.gal-item span{display:block;font-size:14px;color:#41505e;font-weight:300;line-height:1.6;}
.gal-more{display:none;}
.gal.open .gal-more{display:flex;}
.gal-toggle{
  display:block;margin:30px auto 0;background:none;border:1px solid var(--navy);color:var(--navy);
  font-family:inherit;font-size:15px;font-weight:600;padding:13px 34px;cursor:pointer;transition:.25s;
}
.gal-toggle:hover{background:var(--navy);color:#fff;}
.lb{
  display:none;position:fixed;inset:0;z-index:200;background:rgba(6,18,30,.93);
  align-items:center;justify-content:center;padding:56px 20px;
}
.lb.open{display:flex;}
.lb img{max-width:min(94vw,520px);max-height:82vh;object-fit:contain;box-shadow:0 24px 60px rgba(0,0,0,.5);}
.lb-close{
  position:absolute;top:16px;right:20px;background:none;border:0;color:#fff;font-size:38px;
  line-height:1;cursor:pointer;opacity:.8;
}
.lb-nav{
  position:absolute;top:50%;transform:translateY(-50%);background:rgba(255,255,255,.12);border:0;
  color:#fff;font-size:34px;width:52px;height:64px;cursor:pointer;transition:.2s;
}
.lb-nav:hover{background:rgba(255,255,255,.26);}
.lb-prev{left:14px;} .lb-next{right:14px;}
.lb-cap{
  position:absolute;bottom:18px;left:0;right:0;text-align:center;color:#d5e2ee;font-size:14px;
  padding:0 24px;font-weight:300;
}

/* inquiry */
.inquiry{background:#f6f2e8;}
.inquiry .s-head{margin-bottom:36px;}
.eyebrow-chip{
  display:inline-block;background:#e8dfc6;color:#7a6a3a;font-size:12px;font-weight:700;
  letter-spacing:.16em;padding:8px 18px;border-radius:999px;margin-bottom:20px;
}
.channel-card{
  background:#fff;border-radius:18px;padding:44px 34px;text-align:center;
  box-shadow:0 10px 34px rgba(20,40,60,.06);
}
.channel-card h3{
  font-family:'Gowun Batang',serif;font-size:clamp(20px,2.6vw,26px);color:var(--navy);margin-bottom:10px;
}
.channel-card > p{color:var(--muted);font-size:15px;font-weight:300;margin-bottom:30px;}
.channels{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;}
.ch{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:7px;
  border-radius:12px;padding:30px 16px;transition:.25s;min-height:158px;
}
.ch:hover{transform:translateY(-4px);box-shadow:0 14px 30px rgba(20,40,60,.16);}
.ch .ic{font-size:26px;line-height:1;margin-bottom:5px;}
.ch b{font-size:17px;font-weight:700;letter-spacing:-.01em;}
.ch span{font-size:13.5px;opacity:.78;font-weight:300;}
.ch-kakao{background:#fae100;color:#3c1e1e;}
.ch-cafe{background:#03c75a;color:#fff;}
.ch-home{background:var(--navy);color:#fff;}
.ch-home span,.ch-cafe span{opacity:.85;}

.contact-card{
  background:var(--navy-deep);color:#fff;border-radius:18px;padding:52px 40px;margin-top:34px;text-align:center;
}
.contact-card h3{
  font-family:'Gowun Batang',serif;font-size:clamp(24px,3.2vw,32px);color:var(--gold-light);
  letter-spacing:.04em;margin-bottom:12px;
}
.contact-card .who{color:#b9cbdb;font-size:15px;font-weight:300;margin-bottom:26px;}
.contact-card .lines{font-size:17px;font-weight:500;line-height:2.1;}
.contact-card .lines a{border-bottom:1px solid rgba(255,255,255,.2);padding-bottom:1px;}
.contact-card .lines a:hover{border-bottom-color:var(--gold);color:var(--gold-light);}
.tags{display:flex;flex-wrap:wrap;justify-content:center;gap:9px;margin:30px 0 0;}
.tags span{
  border:1px solid rgba(255,255,255,.22);border-radius:999px;padding:8px 16px;
  font-size:13.5px;color:#c2d3e2;font-weight:300;
}
.disclaimer{
  margin-top:32px;padding-top:26px;border-top:1px solid rgba(255,255,255,.14);
  font-size:13.5px;color:#93a8bb;font-weight:300;line-height:1.9;
}
.note{margin-top:26px;font-size:14.5px;color:#6b7787;font-weight:300;text-align:center;}

footer{background:var(--navy-deep);color:#7f93a6;font-size:13px;padding:38px 0;}
footer .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;}
footer b{color:#c3d3e0;font-weight:500;}

/* sticky mobile bar */
.sticky-bar{display:none;}

/* reveal */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease;}
.reveal.in{opacity:1;transform:none;}

:focus-visible{outline:2px solid var(--gold);outline-offset:3px;}

@media (max-width:900px){
  .nav-links,.nav-cta{display:none;}
  .burger{display:flex;}
  .ledger{grid-template-columns:repeat(2,1fr);}
  .ledger div{border-bottom:1px solid rgba(255,255,255,.12);}
  .grid3,.grid2,.channels{grid-template-columns:1fr;}
  .channel-card{padding:30px 20px;}
  .contact-card{padding:36px 22px;}
  .ch{min-height:0;padding:22px 16px;flex-direction:row;gap:10px;flex-wrap:wrap;}
  .ch .ic{margin-bottom:0;font-size:20px;}
  .ch span:not(.ic){width:100%;}
  .gal{grid-template-columns:repeat(2,1fr);gap:12px;}
  .gal-item img{height:170px;}
  .gal-item figcaption{padding:12px 12px 14px;}
  .gal-item span{font-size:13px;}
  .lb{padding:44px 12px;}
  .lb-nav{width:42px;height:54px;font-size:28px;}
  .inc{grid-template-columns:1fr;}
  .inc > div:first-child{border-right:0;border-bottom:1px solid var(--line);}
  section{padding:64px 0;}
  .hero{padding-top:58px;}
  .topbar .tb-left{display:none;}
  .topbar .wrap{justify-content:center;}
  th,td{padding:12px 13px;font-size:14px;}
  th{width:34%;}
  body{padding-bottom:64px;}
  .sticky-bar{
    display:grid;grid-template-columns:1fr 1fr;position:fixed;bottom:0;left:0;right:0;z-index:130;
  }
  .sticky-bar a{padding:18px 10px;text-align:center;font-size:15px;font-weight:600;}
  .sticky-bar .call{background:var(--navy);color:#fff;}
  .sticky-bar .kko{background:var(--gold);color:var(--navy-deep);}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
}