@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/variable/pretendardvariable-dynamic-subset.css');
@import url('https://fonts.googleapis.com/css2?family=Gowun+Batang:wght@400;700&display=swap');

:root{
  --navy:#0B1E3D;
  --navy-2:#122A52;
  --teal:#1B8C8C;
  --blue:#2C5FAA;
  --gold:#C9A227;
  --paper:#FAF8F3;
  --paper-2:#F2EEE3;
  --ink:#1A1A1A;
  --ink-soft:#4A4A48;
  --line:#E4E0D3;
  --max:1120px;
  --article-max:700px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'Pretendard Variable','Pretendard',-apple-system,sans-serif;
  color:var(--ink);
  background:var(--paper);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,.serif{
  font-family:'Gowun Batang','Pretendard Variable',serif;
  font-weight:700;
  line-height:1.35;
  margin:0;
}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
:focus-visible{outline:3px solid var(--gold);outline-offset:2px;}
@media (prefers-reduced-motion: reduce){*{animation:none!important;transition:none!important;}}

.wrap{max-width:var(--max);margin:0 auto;padding:0 24px;}
.article{max-width:var(--article-max);margin:0 auto;padding:0 24px;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(250,248,243,.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.site-header .wrap{
  display:flex;align-items:center;justify-content:space-between;
  height:64px;
}
.brand{display:flex;align-items:center;gap:8px;font-family:'Gowun Batang',serif;font-weight:700;font-size:1.15rem;color:var(--navy);}
.brand span{color:var(--teal);}
.nav{display:flex;gap:28px;font-size:.92rem;color:var(--ink-soft);}
.nav a:hover{color:var(--navy);}
.nav-cta{
  background:var(--navy);color:#fff;padding:9px 18px;border-radius:2px;font-size:.88rem;
}
.nav-cta:hover{background:var(--navy-2);}
.menu-btn{display:none;background:none;border:none;font-size:1.4rem;color:var(--navy);cursor:pointer;}

@media (max-width:860px){
  .nav{
    position:fixed;inset:64px 0 0 0;background:var(--paper);
    flex-direction:column;padding:28px 24px;gap:22px;font-size:1.05rem;
    transform:translateX(100%);transition:transform .28s ease;
  }
  .nav.open{transform:translateX(0);}
  .nav-cta{align-self:flex-start;}
  .menu-btn{display:block;}
}

/* ---------- Hero (gradient) ---------- */
.hero{
  background:linear-gradient(120deg,var(--navy) 0%,var(--blue) 55%,var(--teal) 100%);
  color:#fff;
  padding:76px 0 90px;
}
.hero .wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;}
.eyebrow{font-size:.85rem;color:rgba(255,255,255,.72);margin-bottom:14px;}
.hero h1{font-size:clamp(1.9rem,4vw,2.7rem);color:#fff;margin-bottom:18px;}
.hero p.lede{font-size:1.05rem;color:rgba(255,255,255,.88);max-width:46ch;margin-bottom:28px;}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;}
.btn{
  display:inline-block;padding:13px 24px;border-radius:2px;font-size:.95rem;font-weight:600;
  border:1px solid transparent;
}
.btn-gold{background:var(--gold);color:var(--navy);}
.btn-gold:hover{background:#DDB733;}
.btn-outline{border-color:rgba(255,255,255,.55);color:#fff;}
.btn-outline:hover{border-color:#fff;background:rgba(255,255,255,.08);}
.hero-card{
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.22);
  border-radius:4px;padding:26px;
}
.hero-card h3{color:#fff;font-size:1.05rem;margin-bottom:14px;}
.hero-card ul{margin:0;padding:0;list-style:none;}
.hero-card li{
  display:flex;justify-content:space-between;padding:10px 0;
  border-top:1px solid rgba(255,255,255,.16);font-size:.92rem;color:rgba(255,255,255,.9);
}
.hero-card li:first-of-type{border-top:none;}
.hero-card li b{color:#fff;font-weight:700;}

@media (max-width:860px){
  .hero .wrap{grid-template-columns:1fr;}
  .hero{padding:52px 0 60px;}
}

/* ---------- Sections ---------- */
section{padding:64px 0;}
.section-alt{background:var(--paper-2);}
.section-dark{background:var(--navy);color:#fff;}
.section-dark .ink-soft{color:rgba(255,255,255,.72);}
.kicker{font-size:.85rem;color:var(--teal);margin-bottom:10px;}
.section-dark .kicker{color:#7FD4C6;}
h2.section-title{font-size:clamp(1.5rem,3vw,2rem);max-width:26ch;margin-bottom:14px;}
.section-lede{color:var(--ink-soft);max-width:60ch;margin-bottom:36px;}

/* Card grid (article index / topic cards) */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
@media (max-width:860px){.card-grid{grid-template-columns:1fr;}}
.card{
  background:#fff;border:1px solid var(--line);padding:26px;
}
.card .tag{font-size:.78rem;color:var(--teal);margin-bottom:10px;}
.card h3{font-size:1.15rem;margin-bottom:10px;}
.card p{color:var(--ink-soft);font-size:.92rem;margin:0 0 16px;}
.card .read{font-size:.85rem;color:var(--navy);font-weight:600;}
.card:hover .read{color:var(--teal);}

/* Stats */
.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;margin-top:40px;}
@media (max-width:760px){.stat-row{grid-template-columns:1fr;gap:28px;}}
.stat b{display:block;font-size:2.1rem;font-family:'Gowun Batang',serif;color:var(--gold);}
.stat span{font-size:.88rem;color:rgba(255,255,255,.72);}

/* Article typography */
.article h1{font-size:clamp(1.7rem,4vw,2.3rem);margin-bottom:14px;}
.article .meta{font-size:.85rem;color:var(--ink-soft);margin-bottom:34px;}
.article h2{font-size:1.4rem;margin:44px 0 16px;}
.article h3{font-size:1.12rem;margin:28px 0 12px;font-family:'Pretendard Variable',sans-serif;font-weight:700;}
.article p{margin:0 0 18px;color:#2b2b28;}
.article ul,.article ol{margin:0 0 20px;padding-left:22px;color:#2b2b28;}
.article li{margin-bottom:8px;}
.article table{width:100%;border-collapse:collapse;margin:20px 0 30px;font-size:.92rem;}
.article th,.article td{border:1px solid var(--line);padding:10px 12px;text-align:left;}
.article th{background:var(--paper-2);}
.callout{
  background:var(--paper-2);border-left:3px solid var(--teal);padding:18px 22px;margin:26px 0;font-size:.95rem;
}
.callout b{color:var(--navy);}
.pull{
  font-family:'Gowun Batang',serif;font-size:1.2rem;line-height:1.6;color:var(--navy);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:24px 0;margin:34px 0;
}

/* Timeline (legitimate sequence use) */
.timeline{border-left:2px solid var(--line);margin:24px 0;padding-left:24px;}
.timeline-item{margin-bottom:22px;position:relative;}
.timeline-item::before{
  content:'';position:absolute;left:-29px;top:6px;width:10px;height:10px;border-radius:50%;background:var(--teal);
}
.timeline-item .date{font-weight:700;color:var(--navy);font-size:.95rem;}
.timeline-item .desc{color:var(--ink-soft);font-size:.9rem;}

/* Comparison table emphasis */
.compare-table td:first-child,.compare-table th:first-child{font-weight:700;background:var(--paper-2);}

/* FAQ */
.faq-item{border-bottom:1px solid var(--line);padding:20px 0;}
.faq-item summary{cursor:pointer;font-weight:700;color:var(--navy);list-style:none;display:flex;justify-content:space-between;gap:12px;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:'+';font-size:1.3rem;color:var(--teal);}
.faq-item[open] summary::after{content:'–';}
.faq-item p{margin:14px 0 0;color:var(--ink-soft);}

/* Testimonials */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
@media (max-width:860px){.review-grid{grid-template-columns:1fr;}}
.review{background:#fff;border:1px solid var(--line);padding:24px;font-size:.92rem;}
.review .stars{color:var(--gold);margin-bottom:10px;font-size:.9rem;}
.review p{color:#2b2b28;margin:0 0 14px;}
.review .who{font-size:.82rem;color:var(--ink-soft);}

/* Curriculum steps */
.curri-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
@media (max-width:760px){.curri-grid{grid-template-columns:1fr;}}
.curri-card{background:#fff;border:1px solid var(--line);padding:26px;}
.curri-card .num{font-family:'Gowun Batang',serif;color:var(--teal);font-size:.85rem;margin-bottom:8px;}
.curri-card h3{font-size:1.1rem;margin-bottom:10px;}
.curri-card p{color:var(--ink-soft);font-size:.92rem;margin:0;}

/* Locations */
.loc-row{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:30px;}
@media (max-width:860px){.loc-row{grid-template-columns:repeat(2,1fr);}}
.loc{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);padding:18px;font-size:.88rem;}
.loc b{display:block;color:#fff;margin-bottom:6px;}
.loc span{color:rgba(255,255,255,.7);}

/* Footer */
.site-footer{background:var(--navy);color:rgba(255,255,255,.75);padding:52px 0 26px;font-size:.88rem;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px;margin-bottom:36px;}
@media (max-width:760px){.footer-grid{grid-template-columns:1fr;gap:26px;}}
.footer-grid h4{color:#fff;font-size:.92rem;margin-bottom:14px;font-weight:700;}
.footer-grid ul{list-style:none;margin:0;padding:0;}
.footer-grid li{margin-bottom:8px;}
.footer-grid a:hover{color:#fff;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:.8rem;color:rgba(255,255,255,.5);}

/* Final CTA band */
.cta-band{
  background:linear-gradient(120deg,var(--teal),var(--blue));
  color:#fff;text-align:center;padding:56px 24px;
}
.cta-band h2{color:#fff;margin-bottom:14px;}
.cta-band p{color:rgba(255,255,255,.9);margin-bottom:26px;}
.cta-actions{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;}

/* Breadcrumb */
.crumb{font-size:.82rem;color:var(--ink-soft);padding:18px 0 0;}
.crumb a:hover{color:var(--navy);}

/* Toc */
.toc{background:var(--paper-2);border:1px solid var(--line);padding:20px 24px;margin:30px 0;font-size:.92rem;}
.toc b{display:block;margin-bottom:10px;color:var(--navy);}
.toc ol{margin:0;padding-left:18px;}
.toc li{margin-bottom:6px;}