/* =========================================================
   TOP EDU PREP — IB vs A-Level 정보 사이트
   Design tokens
   ========================================================= */
:root{
  --navy:        #16233F;
  --navy-deep:   #0C1526;
  --parchment:   #F6F1E4;
  --parchment-2: #EEE4CB;
  --gold:        #A9832E;
  --gold-light:  #C9A65C;
  --burgundy:    #6E2A32;
  --ink:         #1B1B1B;
  --ink-soft:    #4B4A45;
  --white:       #FFFFFF;
  --rule:        rgba(27,27,27,.16);
  --rule-invert: rgba(246,241,228,.28);

  --display: "Noto Serif KR", "Times New Roman", serif;
  --body: "Noto Sans KR", -apple-system, sans-serif;
  --mono: "IBM Plex Mono", "Courier New", monospace;

  --maxw: 1120px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--parchment);
  color:var(--ink);
  font-family:var(--body);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;}
img{max-width:100%;display:block;}
h1,h2,h3,h4{
  font-family:var(--display);
  font-weight:700;
  color:var(--navy);
  line-height:1.35;
  margin:0 0 .6em;
}
p{margin:0 0 1.1em;}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px;}
:focus-visible{outline:3px solid var(--gold);outline-offset:2px;}
@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
}

/* ---------- Eyebrow / labels ---------- */
.eyebrow{
  font-family:var(--mono);
  font-size:.72rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--gold);
  display:inline-block;
  margin-bottom:.9em;
}

/* ---------- Header ---------- */
.site-header{
  background:var(--navy);
  color:var(--parchment);
  border-bottom:3px solid var(--gold);
  position:sticky;top:0;z-index:50;
}
.site-header .wrap{
  display:flex;align-items:center;justify-content:space-between;
  padding-top:14px;padding-bottom:14px;gap:20px;
}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--parchment);}
.crest{
  width:42px;height:42px;border-radius:50%;
  border:2px solid var(--gold-light);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--display);font-weight:700;font-size:.78rem;
  letter-spacing:.02em;color:var(--gold-light);
  position:relative;flex:none;
}
.crest::before,.crest::after{
  content:"";position:absolute;top:50%;width:6px;height:1px;background:var(--gold-light);
}
.crest::before{left:-9px;}
.crest::after{right:-9px;}
.brand-word{display:flex;flex-direction:column;line-height:1.15;}
.brand-word b{font-family:var(--display);font-size:1.05rem;letter-spacing:.02em;}
.brand-word span{font-family:var(--mono);font-size:.63rem;letter-spacing:.16em;color:var(--gold-light);text-transform:uppercase;}

nav.mainnav{display:flex;align-items:center;gap:26px;flex-wrap:wrap;}
nav.mainnav a{
  font-size:.92rem;text-decoration:none;color:var(--rule-invert);
  padding:6px 0;border-bottom:2px solid transparent;
}
nav.mainnav a:hover,nav.mainnav a[aria-current="page"]{
  color:var(--parchment);border-bottom-color:var(--gold);
}
.cta-btn{
  background:var(--gold);color:var(--navy-deep) !important;
  font-weight:700;padding:9px 18px !important;border-radius:2px;
  border-bottom:none !important;font-size:.88rem !important;
}
.cta-btn:hover{background:var(--gold-light);}
.navtoggle{display:none;}

/* ---------- Hero ---------- */
.hero{
  background:
    radial-gradient(1100px 420px at 85% -10%, rgba(169,131,46,.25), transparent 60%),
    var(--navy);
  color:var(--parchment);
  padding:76px 0 64px;
  border-bottom:3px solid var(--gold);
}
.hero h1{
  color:var(--parchment);
  font-size:clamp(1.9rem,3.6vw,2.9rem);
  max-width:16ch;
}
.hero .lede{
  max-width:62ch;font-size:1.08rem;color:var(--parchment-2);
}
.hero-meta{
  display:flex;gap:22px;flex-wrap:wrap;margin-top:26px;
  font-family:var(--mono);font-size:.78rem;color:var(--gold-light);
}
.hero-meta span{border-left:2px solid var(--gold);padding-left:10px;}

/* ---------- Sections ---------- */
main section{padding:56px 0;}
main section + section{border-top:1px solid var(--rule);}
.section-head{max-width:70ch;margin-bottom:34px;}
.section-head h2{font-size:clamp(1.5rem,2.4vw,2rem);}

/* ---------- Ledger / 성적표형 비교표 (signature element) ---------- */
.ledger{
  background:var(--white);
  border:1px solid var(--ink);
  box-shadow:6px 6px 0 var(--gold);
  margin:0 0 40px;
}
.ledger-head{
  display:flex;justify-content:space-between;align-items:baseline;
  padding:16px 22px;border-bottom:2px solid var(--ink);
  font-family:var(--mono);font-size:.74rem;letter-spacing:.06em;
  color:var(--ink-soft);
}
.ledger-head b{font-family:var(--display);font-size:1rem;color:var(--navy);letter-spacing:0;}
.ledger table{width:100%;border-collapse:collapse;}
.ledger th,.ledger td{
  text-align:left;padding:14px 22px;border-bottom:1px solid var(--rule);
  vertical-align:top;font-size:.95rem;
}
.ledger thead th{
  font-family:var(--mono);font-size:.72rem;text-transform:uppercase;
  letter-spacing:.08em;color:var(--navy);background:var(--parchment);
  border-bottom:2px solid var(--ink);
}
.ledger tbody tr:last-child td{border-bottom:none;}
.ledger tbody th{
  font-family:var(--display);font-weight:700;color:var(--navy);width:22%;
  border-right:1px dashed var(--rule);
}
.tag{
  display:inline-block;font-family:var(--mono);font-size:.68rem;
  padding:2px 7px;border:1px solid var(--gold);color:var(--gold);
  border-radius:2px;letter-spacing:.04em;margin-right:4px;
}
.tag.win{background:var(--gold);color:var(--white);border-color:var(--gold);}

/* ---------- Cards ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:22px;}
.card{
  background:var(--white);border:1px solid var(--rule);
  border-top:4px solid var(--navy);padding:24px 22px;
}
.card h3{font-size:1.08rem;margin-bottom:.5em;}
.card p{margin-bottom:0;color:var(--ink-soft);font-size:.94rem;}
.card .num{
  font-family:var(--mono);color:var(--gold);font-size:.8rem;display:block;margin-bottom:10px;
}

/* ---------- Pull quote / callout ---------- */
.callout{
  background:var(--navy);color:var(--parchment);
  padding:30px 32px;border-left:6px solid var(--gold);
  font-family:var(--display);font-size:1.15rem;line-height:1.6;margin:36px 0;
}
.callout cite{display:block;margin-top:14px;font-family:var(--mono);font-size:.72rem;color:var(--gold-light);font-style:normal;letter-spacing:.05em;}

/* ---------- FAQ ---------- */
.faq-item{border-bottom:1px solid var(--rule);padding:18px 0;}
.faq-item summary{
  cursor:pointer;font-family:var(--display);font-weight:700;color:var(--navy);
  font-size:1.02rem;list-style:none;position:relative;padding-right:26px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";position:absolute;right:0;top:-2px;font-family:var(--mono);
  color:var(--gold);font-size:1.3rem;
}
.faq-item[open] summary::after{content:"–";}
.faq-item p{margin-top:12px;color:var(--ink-soft);}

/* ---------- Internal link nav (menu strip) ---------- */
.related{
  background:var(--parchment-2);border:1px dashed var(--gold);
  padding:24px 26px;margin-top:40px;
}
.related h3{font-size:.98rem;margin-bottom:12px;}
.related ul{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:8px;}
.related a{text-decoration:none;color:var(--navy);font-weight:700;}
.related a:hover{color:var(--burgundy);}
.related a::before{content:"→ ";color:var(--gold);}

/* ---------- CTA band ---------- */
.cta-band{
  background:var(--burgundy);color:var(--parchment);padding:48px 0;text-align:center;
}
.cta-band h2{color:var(--parchment);}
.cta-band .cta-btn{display:inline-block;text-decoration:none;margin-top:10px;}

/* ---------- Footer ---------- */
footer.site-footer{background:var(--navy-deep);color:var(--parchment-2);padding:44px 0 26px;font-size:.86rem;}
footer.site-footer .wrap{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
footer h4{color:var(--gold-light);font-family:var(--mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;margin-bottom:14px;}
footer ul{list-style:none;margin:0;padding:0;}
footer li{margin-bottom:8px;}
footer a{text-decoration:none;color:var(--parchment-2);}
footer a:hover{color:var(--gold-light);}
.foot-bottom{
  max-width:var(--maxw);margin:32px auto 0;padding:18px 24px 0;
  border-top:1px solid var(--rule-invert);font-size:.76rem;color:var(--rule-invert);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;
}

/* ---------- Breadcrumb ---------- */
.crumb{font-family:var(--mono);font-size:.72rem;color:var(--gold-light);margin-bottom:18px;}
.crumb a{text-decoration:none;color:var(--gold-light);}
.crumb a:hover{text-decoration:underline;}

/* ---------- Responsive ---------- */
@media (max-width:860px){
  .site-header .wrap{flex-direction:column;align-items:flex-start;gap:12px;}
  nav.mainnav{width:100%;gap:14px 18px;font-size:.86rem;}
  .grid-3{grid-template-columns:1fr;}
  .grid-2{grid-template-columns:1fr;}
  footer.site-footer .wrap{grid-template-columns:1fr;}
  .ledger tbody th{width:34%;}
}