/* ===================================================================
   SAT·IB 학원 가이드 — 디자인 시스템
   Navy #0F1B3C / Coral #FF4C3B / Gold #F0B429 / Cream #FAF7F2
   Display+Body: Pretendard · Data/label: DM Mono
=================================================================== */

@font-face {
  font-family: 'Pretendard';
  src: url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/woff2/Pretendard-Regular.woff2') format('woff2');
  font-weight: 400; font-display: swap;
}
@font-face {
  font-family: 'Pretendard';
  src: url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/woff2/Pretendard-Medium.woff2') format('woff2');
  font-weight: 500; font-display: swap;
}
@font-face {
  font-family: 'Pretendard';
  src: url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/woff2/Pretendard-Bold.woff2') format('woff2');
  font-weight: 700; font-display: swap;
}
@font-face {
  font-family: 'Pretendard';
  src: url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/woff2/Pretendard-ExtraBold.woff2') format('woff2');
  font-weight: 800; font-display: swap;
}
@import url('https://fonts.googleapis.com/css2?family=DM+Mono:wght@400;500&display=swap');

:root{
  --navy:#0F1B3C;
  --navy-2:#16265C;
  --coral:#FF4C3B;
  --coral-dim:#FFE4E0;
  --gold:#F0B429;
  --cream:#FAF7F2;
  --ink:#1B1F2A;
  --slate:#6B7280;
  --line:#E7E2D8;
  --card:#FFFFFF;
  --radius:18px;
  --max:480px;
}

*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--cream);
  color:var(--ink);
  font-family:'Pretendard',-apple-system,BlinkMacSystemFont,sans-serif;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  padding-bottom:76px; /* bottom nav clearance */
}
.mono{font-family:'DM Mono',monospace;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
:focus-visible{outline:3px solid var(--coral);outline-offset:2px;}
@media (prefers-reduced-motion: reduce){
  *{animation-duration:0.01ms !important;transition-duration:0.01ms !important;}
}

.wrap{max-width:var(--max);margin:0 auto;padding:0 18px;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:40;
  background:var(--navy);
  color:#fff;
  border-bottom:1px solid rgba(255,255,255,0.08);
}
.site-header .bar{
  max-width:var(--max);margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 18px;
}
.logo{
  font-weight:800;font-size:17px;letter-spacing:-0.02em;
  display:flex;align-items:center;gap:8px;
}
.logo .dot{width:8px;height:8px;border-radius:50%;background:var(--coral);}
.logo small{
  display:block;font-family:'DM Mono',monospace;font-weight:400;
  font-size:9px;letter-spacing:0.14em;color:#B9C2E0;text-transform:uppercase;
}
.menu-btn{
  width:38px;height:38px;border-radius:10px;border:1px solid rgba(255,255,255,0.18);
  background:transparent;color:#fff;font-size:16px;display:flex;align-items:center;justify-content:center;
}

.drawer{
  position:fixed;inset:0;z-index:60;display:none;
}
.drawer.open{display:block;}
.drawer .backdrop{position:absolute;inset:0;background:rgba(15,27,60,0.55);}
.drawer .panel{
  position:absolute;top:0;right:0;bottom:0;width:78%;max-width:320px;
  background:var(--navy);color:#fff;padding:24px 20px;
  display:flex;flex-direction:column;gap:4px;
}
.drawer .close{align-self:flex-end;background:none;border:none;color:#fff;font-size:22px;margin-bottom:10px;}
.drawer nav a{
  padding:14px 4px;border-bottom:1px solid rgba(255,255,255,0.09);
  font-weight:600;font-size:15px;
}
.drawer .eyebrow{font-family:'DM Mono';font-size:10px;letter-spacing:.14em;color:#8C9BCB;text-transform:uppercase;margin:18px 0 6px;}

/* ---------- Hero ---------- */
.hero{
  background:linear-gradient(180deg,var(--navy) 0%, var(--navy-2) 78%, var(--navy-2) 100%);
  color:#fff;padding:34px 0 30px;
  position:relative;overflow:hidden;
}
.hero::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;
  border-radius:50%;background:radial-gradient(circle,rgba(255,76,59,0.35),transparent 70%);
}
.eyebrow{
  font-family:'DM Mono',monospace;font-size:11px;letter-spacing:.16em;
  color:var(--gold);text-transform:uppercase;font-weight:500;
}
.hero h1{
  font-size:26px;line-height:1.32;font-weight:800;letter-spacing:-0.02em;
  margin:10px 0 12px;
}
.hero h1 em{color:var(--coral);font-style:normal;}
.hero p{color:#C7CEE6;font-size:14.5px;margin:0 0 20px;max-width:38ch;}

.stat-row{display:flex;gap:10px;margin-top:18px;}
.stat{
  flex:1;background:rgba(255,255,255,0.06);border:1px solid rgba(255,255,255,0.12);
  border-radius:14px;padding:12px 10px;text-align:center;
}
.stat .num{font-family:'DM Mono';font-size:20px;font-weight:500;color:#fff;}
.stat .lbl{font-size:11px;color:#A9B3D6;margin-top:2px;}

/* ---------- Category cards (index) ---------- */
.cat-grid{padding:22px 0 8px;display:flex;flex-direction:column;gap:12px;}
.cat-card{
  display:flex;align-items:center;gap:14px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:16px;transition:transform .15s ease, box-shadow .15s ease;
}
.cat-card:active{transform:scale(0.98);}
.cat-card .badge{
  width:46px;height:46px;border-radius:12px;flex:none;
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:15px;color:#fff;
}
.cat-card .badge.b1{background:var(--coral);}
.cat-card .badge.b2{background:var(--navy);}
.cat-card .badge.b3{background:#3E7CB1;}
.cat-card .body{flex:1;min-width:0;}
.cat-card .body h3{margin:0 0 3px;font-size:15.5px;font-weight:700;}
.cat-card .body p{margin:0;font-size:12.5px;color:var(--slate);}
.cat-card .count{
  font-family:'DM Mono';font-size:12px;color:var(--slate);
  background:var(--cream);border-radius:20px;padding:4px 9px;flex:none;
}

/* ---------- Section heads ---------- */
.section{padding:26px 0;}
.section-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:14px;}
.section-head h2{font-size:18px;font-weight:800;margin:0;letter-spacing:-0.01em;}
.section-head .see-all{font-size:12.5px;color:var(--coral);font-weight:600;}

/* ---------- Filter chips ---------- */
.filter-bar{padding:14px 0 4px;}
.chip-row{
  display:flex;gap:8px;overflow-x:auto;padding:2px 0 10px;
  scrollbar-width:none;
}
.chip-row::-webkit-scrollbar{display:none;}
.chip{
  flex:none;padding:8px 14px;border-radius:20px;border:1px solid var(--line);
  background:#fff;font-size:12.5px;font-weight:600;color:var(--ink);white-space:nowrap;
}
.chip.active{background:var(--navy);border-color:var(--navy);color:#fff;}
.search-box{
  display:flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--line);border-radius:14px;padding:11px 14px;margin-bottom:10px;
}
.search-box input{
  border:none;outline:none;flex:1;font-size:14px;font-family:'Pretendard';background:transparent;
}
.result-count{
  font-family:'DM Mono';font-size:12px;color:var(--slate);padding:2px 2px 12px;
}
.result-count b{color:var(--coral);}

/* ---------- Academy cards ---------- */
.academy-list{display:flex;flex-direction:column;gap:12px;}
.a-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:16px;display:flex;gap:12px;
}
.a-card .avatar{
  flex:none;width:42px;height:42px;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:15px;color:#fff;
}
.a-card .content{flex:1;min-width:0;}
.a-card .row1{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:4px;}
.a-card h3{font-size:15px;font-weight:700;margin:0;}
.a-card .region{
  font-family:'DM Mono';font-size:10.5px;color:var(--navy-2);
  background:#EEF1FA;border-radius:8px;padding:2px 7px;flex:none;
}
.a-card p{margin:4px 0 10px;font-size:13px;color:var(--slate);}
.tag-row{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:10px;}
.tag{
  font-size:11px;background:var(--coral-dim);color:#C7361F;border-radius:8px;padding:3px 8px;font-weight:600;
}
.a-card .link{
  display:inline-flex;align-items:center;gap:4px;font-size:12.5px;font-weight:700;color:var(--navy);
}
.a-card .link::after{content:"→";}
.empty-state{
  text-align:center;padding:40px 20px;color:var(--slate);font-size:13.5px;
}

/* ---------- Guide / article content ---------- */
.article h2{font-size:17px;font-weight:800;margin:26px 0 10px;letter-spacing:-0.01em;}
.article h3{font-size:15px;font-weight:700;margin:18px 0 8px;}
.article p{font-size:14px;color:#3A3F4C;margin:0 0 12px;}
.article ul{margin:0 0 14px;padding-left:20px;}
.article li{font-size:14px;color:#3A3F4C;margin-bottom:6px;}
.callout{
  background:#fff;border:1px solid var(--line);border-left:4px solid var(--coral);
  border-radius:12px;padding:14px 16px;margin:16px 0;font-size:13.5px;color:var(--ink);
}
.faq-item{border-bottom:1px solid var(--line);padding:14px 0;}
.faq-item summary{font-weight:700;font-size:14px;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:10px;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";color:var(--coral);font-size:18px;flex:none;}
.faq-item[open] summary::after{content:"–";}
.faq-item p{margin:10px 0 0;font-size:13px;color:var(--slate);}

/* ---------- Footer ---------- */
footer{
  background:var(--navy);color:#B9C2E0;padding:30px 0 26px;margin-top:20px;font-size:12.5px;
}
footer .flogo{color:#fff;font-weight:800;font-size:15px;margin-bottom:8px;}
footer a{color:#C7CEE6;}
footer .fnote{margin-top:14px;color:#7986B3;font-size:11.5px;line-height:1.6;}

/* ---------- Bottom tab bar ---------- */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:50;
  background:#fff;border-top:1px solid var(--line);
  display:flex;padding:6px 8px calc(6px + env(safe-area-inset-bottom));
  max-width:var(--max);margin:0 auto;
}
.tabbar a{
  flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;
  padding:6px 2px;font-size:10.5px;color:var(--slate);font-weight:600;border-radius:10px;
}
.tabbar a .ic{font-size:17px;}
.tabbar a.active{color:var(--coral);}

@media (min-width:481px){
  .tabbar{border-left:1px solid var(--line);border-right:1px solid var(--line);border-radius:0;}
}