/* =========================================================
   탑에듀프렙 IB/SAT/AP 학습 매거진 — Design System
   Palette : Navy / Gold / Parchment / Sage
   Type    : Fraunces (display) / Inter (body) / JetBrains Mono (data)
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,500;9..144,600;9..144,700&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root{
  --navy-950: #0B1A30;
  --navy-900: #10233F;
  --navy-800: #1B3A63;
  --navy-700: #2A4E7C;
  --gold-600: #A9812B;
  --gold-500: #C29A3D;
  --gold-100: #F1E6C8;
  --parchment: #F6F2E7;
  --parchment-dim: #EFE9D8;
  --ink: #22262B;
  --ink-soft: #4B5157;
  --sage-600: #4F6E52;
  --sage-100: #E3EAE1;
  --danger: #A5432F;
  --line: rgba(16,35,63,0.12);
  --radius: 2px;
  --max: 1180px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--parchment);
  color:var(--ink);
  font-family:'Inter',sans-serif;
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{
  font-family:'Fraunces',serif;
  font-weight:600;
  color:var(--navy-900);
  line-height:1.22;
  margin:0 0 .5em;
  letter-spacing:-0.01em;
}
h1{font-size:clamp(2.1rem,4.4vw,3.4rem); font-weight:700;}
h2{font-size:clamp(1.5rem,2.8vw,2.15rem);}
h3{font-size:1.28rem;}
p{margin:0 0 1.1em; color:var(--ink-soft);}
a{color:inherit;}
.mono{font-family:'JetBrains Mono',monospace;}
img{max-width:100%;display:block;}
ul,ol{color:var(--ink-soft);}
.wrap{max-width:var(--max); margin:0 auto; padding:0 24px;}

/* ---------- Skip link / focus ---------- */
.skip-link{position:absolute; left:-999px; top:0; background:var(--navy-900); color:#fff; padding:10px 16px; z-index:999;}
.skip-link:focus{left:12px; top:12px;}
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible{
  outline:3px solid var(--gold-500); outline-offset:2px;
}

/* ---------- Top utility bar ---------- */
.util-bar{
  background:var(--navy-950); color:var(--gold-100);
  font-family:'JetBrains Mono',monospace; font-size:12.5px;
  letter-spacing:.02em;
}
.util-bar .wrap{display:flex; justify-content:space-between; align-items:center; padding:7px 24px; gap:12px; flex-wrap:wrap;}
.util-bar a{color:var(--gold-100); text-decoration:none;}
.util-bar a:hover{text-decoration:underline;}
.util-locations{display:flex; gap:14px; flex-wrap:wrap;}

/* ---------- Nav ---------- */
header.site-header{background:var(--navy-900); position:sticky; top:0; z-index:50; box-shadow:0 1px 0 rgba(0,0,0,.15);}
.nav-row{display:flex; align-items:center; justify-content:space-between; padding:14px 24px; gap:20px;}
.brand{display:flex; align-items:center; gap:10px; text-decoration:none; color:#fff;}
.brand-mark{
  width:34px;height:34px; border:1.5px solid var(--gold-500); border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  font-family:'Fraunces',serif; font-weight:600; color:var(--gold-500); font-size:15px;
}
.brand-name{font-family:'Fraunces',serif; font-weight:600; font-size:1.05rem; letter-spacing:.01em;}
.brand-sub{display:block; font-family:'JetBrains Mono',monospace; font-size:10px; color:var(--gold-100); opacity:.75; letter-spacing:.04em;}

nav.main-nav{display:flex; gap:2px; flex-wrap:wrap;}
nav.main-nav a{
  color:#DCE3EE; text-decoration:none; font-size:14px; font-weight:500;
  padding:9px 12px; border-bottom:2px solid transparent; white-space:nowrap;
}
nav.main-nav a:hover, nav.main-nav a.active{color:#fff; border-bottom-color:var(--gold-500);}
.nav-cta{
  background:var(--gold-500); color:var(--navy-950)!important; padding:9px 16px!important;
  border-radius:var(--radius); font-weight:700!important; border-bottom:none!important;
}
.nav-cta:hover{background:#D6AC49; border-bottom-color:transparent!important;}

.nav-toggle{display:none; background:none; border:1px solid var(--gold-500); color:#fff; padding:8px 10px; font-size:14px; cursor:pointer;}

@media (max-width:960px){
  nav.main-nav{
    display:none; position:absolute; top:100%; left:0; right:0; background:var(--navy-900);
    flex-direction:column; padding:6px 24px 16px; border-top:1px solid var(--navy-800);
  }
  nav.main-nav.open{display:flex;}
  nav.main-nav a{padding:11px 4px; border-bottom:1px solid var(--navy-800);}
  .nav-toggle{display:block;}
  .util-locations{display:none;}
}

/* ---------- Hero ---------- */
.hero{background:linear-gradient(180deg,var(--navy-900) 0%, var(--navy-950) 100%); color:#EDEFF3; padding:64px 0 56px; position:relative; overflow:hidden;}
.hero::after{
  content:""; position:absolute; right:-10%; top:-20%; width:520px; height:520px;
  background:radial-gradient(circle,rgba(194,154,61,.16) 0%, transparent 70%);
}
.hero-grid{display:grid; grid-template-columns:1.15fr .85fr; gap:48px; align-items:center; position:relative;}
.eyebrow{
  display:inline-flex; align-items:center; gap:8px; font-family:'JetBrains Mono',monospace; font-size:12px;
  color:var(--gold-100); border:1px solid rgba(241,230,200,.35); padding:5px 12px; border-radius:20px; margin-bottom:18px;
}
.eyebrow::before{content:"●"; color:var(--gold-500); font-size:8px;}
.hero h1{color:#fff;}
.hero p.lede{color:#C6CEDC; font-size:1.08rem; max-width:52ch;}
.hero-actions{display:flex; gap:12px; flex-wrap:wrap; margin-top:26px;}
.btn{
  display:inline-block; padding:13px 24px; font-weight:700; font-size:14.5px; text-decoration:none;
  border-radius:var(--radius); border:1.5px solid transparent; cursor:pointer; font-family:'Inter',sans-serif;
}
.btn-gold{background:var(--gold-500); color:var(--navy-950); border-color:var(--gold-500);}
.btn-gold:hover{background:#D6AC49;}
.btn-outline{border-color:rgba(255,255,255,.4); color:#fff;}
.btn-outline:hover{border-color:#fff; background:rgba(255,255,255,.06);}
.btn-navy{background:var(--navy-900); color:#fff; border-color:var(--navy-900);}
.btn-navy:hover{background:var(--navy-800);}

/* ---------- D-day ticker (signature element) ---------- */
.dday-card{
  background:var(--navy-950); border:1px solid rgba(241,230,200,.25); padding:22px 24px;
  font-family:'JetBrains Mono',monospace;
}
.dday-card .label{font-size:11px; color:var(--gold-100); letter-spacing:.06em; text-transform:uppercase; opacity:.8;}
.dday-row{display:flex; justify-content:space-between; align-items:baseline; padding:11px 0; border-bottom:1px dashed rgba(241,230,200,.18);}
.dday-row:last-child{border-bottom:none;}
.dday-exam{font-size:13.5px; color:#EDEFF3;}
.dday-date{font-size:12px; color:#93A0B6;}
.dday-num{font-size:1.5rem; color:var(--gold-500); font-weight:600;}

/* ---------- Sections ---------- */
section{padding:64px 0;}
.section-alt{background:var(--parchment-dim);}
.section-navy{background:var(--navy-900); color:#DCE3EE;}
.section-navy h2, .section-navy h3{color:#fff;}
.section-navy p{color:#B7C1D3;}
.section-head{max-width:64ch; margin-bottom:38px;}
.kicker{
  font-family:'JetBrains Mono',monospace; font-size:12px; color:var(--gold-600); letter-spacing:.08em;
  text-transform:uppercase; display:block; margin-bottom:10px;
}
.section-navy .kicker{color:var(--gold-500);}

.grid{display:grid; gap:22px;}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-2{grid-template-columns:repeat(2,1fr);}
.grid-4{grid-template-columns:repeat(4,1fr);}
@media (max-width:900px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr);} .hero-grid{grid-template-columns:1fr;}}
@media (max-width:640px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}}

.card{
  background:#fff; border:1px solid var(--line); padding:26px 24px; border-radius:var(--radius);
}
.card h3{margin-bottom:.4em; font-size:1.12rem;}
.card .tag{
  display:inline-block; font-family:'JetBrains Mono',monospace; font-size:11px; color:var(--sage-600);
  background:var(--sage-100); padding:3px 9px; border-radius:12px; margin-bottom:12px;
}

/* ---------- Score ladder (signature element #2) ---------- */
.ladder{display:flex; align-items:flex-end; gap:8px; margin:28px 0 8px; height:180px;}
.ladder .rung{flex:1; background:var(--navy-800); position:relative; border-radius:2px 2px 0 0; display:flex; align-items:flex-start; justify-content:center; padding-top:8px;}
.ladder .rung span{font-family:'JetBrains Mono',monospace; color:#fff; font-size:13px; font-weight:600;}
.ladder .rung.r7{height:100%; background:var(--gold-500);} .ladder .rung.r7 span{color:var(--navy-950);}
.ladder .rung.r6{height:84%;}
.ladder .rung.r5{height:68%;}
.ladder .rung.r4{height:52%;}
.ladder .rung.r3{height:36%; background:var(--navy-700);}
.ladder .rung.r2{height:24%; background:var(--navy-700);}
.ladder .rung.r1{height:14%; background:var(--navy-700);}
.ladder-labels{display:flex; justify-content:space-between; font-family:'JetBrains Mono',monospace; font-size:11px; color:var(--ink-soft);}

/* ---------- Timeline / process ---------- */
.process{border-left:2px solid var(--gold-500); padding-left:26px; display:flex; flex-direction:column; gap:30px; margin-left:6px;}
.process .step{position:relative;}
.process .step::before{content:""; position:absolute; left:-32px; top:4px; width:11px; height:11px; background:var(--gold-500); border-radius:50%;}
.process .step .step-label{font-family:'JetBrains Mono',monospace; font-size:12px; color:var(--gold-600); margin-bottom:4px; display:block;}

/* ---------- Table ---------- */
table{width:100%; border-collapse:collapse; font-size:14.5px; background:#fff;}
th,td{text-align:left; padding:12px 14px; border-bottom:1px solid var(--line);}
th{font-family:'JetBrains Mono',monospace; font-size:12px; text-transform:uppercase; letter-spacing:.04em; color:var(--navy-900); background:var(--parchment-dim);}
td.mono, th.mono{font-family:'JetBrains Mono',monospace;}
.table-wrap{overflow-x:auto; border:1px solid var(--line);}

/* ---------- FAQ ---------- */
details{border-bottom:1px solid var(--line); padding:16px 2px;}
details summary{cursor:pointer; font-weight:600; color:var(--navy-900); list-style:none; display:flex; justify-content:space-between; gap:12px;}
details summary::-webkit-details-marker{display:none;}
details summary::after{content:"+"; color:var(--gold-600); font-size:20px; font-weight:400;}
details[open] summary::after{content:"–";}
details p{margin-top:12px;}

/* ---------- Review card ---------- */
.review{background:#fff; border:1px solid var(--line); padding:22px; border-left:3px solid var(--gold-500);}
.review .who{font-family:'JetBrains Mono',monospace; font-size:12px; color:var(--sage-600); margin-top:10px; display:block;}
.stars{color:var(--gold-600); letter-spacing:2px; font-size:14px;}

/* ---------- Locations ---------- */
.loc-card{background:#fff; border:1px solid var(--line); padding:24px;}
.loc-card .loc-name{font-family:'Fraunces',serif; font-weight:600; color:var(--navy-900); font-size:1.15rem;}
.loc-card .loc-meta{font-family:'JetBrains Mono',monospace; font-size:12.5px; color:var(--ink-soft); margin:10px 0;}

/* ---------- Footer ---------- */
footer{background:var(--navy-950); color:#B7C1D3; padding:56px 0 26px; font-size:14px;}
.foot-grid{display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:36px; margin-bottom:40px;}
footer h4{color:#fff; font-size:14px; font-family:'JetBrains Mono',monospace; text-transform:uppercase; letter-spacing:.05em; margin-bottom:16px;}
footer ul{list-style:none; padding:0; margin:0; display:flex; flex-direction:column; gap:10px;}
footer a{color:#B7C1D3; text-decoration:none;}
footer a:hover{color:#fff;}
.foot-bottom{border-top:1px solid rgba(255,255,255,.1); padding-top:22px; display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px; font-size:12.5px; color:#7C88A0;}
@media (max-width:860px){.foot-grid{grid-template-columns:1fr 1fr;}}
@media (max-width:560px){.foot-grid{grid-template-columns:1fr;}}

/* ---------- Breadcrumb ---------- */
.crumb{font-family:'JetBrains Mono',monospace; font-size:12.5px; color:var(--ink-soft); padding:16px 0 0;}
.crumb a{color:var(--navy-800); text-decoration:none;}
.crumb a:hover{text-decoration:underline;}

/* ---------- Print ---------- */
@media print{
  header, footer, .no-print{display:none!important;}
  body{background:#fff;}
}

/* ---------- Utility ---------- */
.center{text-align:center;}
.mt-0{margin-top:0;}
.small{font-size:13px;}
.chip{display:inline-block; font-family:'JetBrains Mono',monospace; font-size:11.5px; background:var(--sage-100); color:var(--sage-600); padding:3px 10px; border-radius:12px; margin:2px 4px 2px 0;}