/* ==========================================================================
   TopEduPrep — Stylesheet (v2)
   Concept: 공책 · 형광펜 · 체크리스트  /  pine green + highlighter lime
   ========================================================================== */

:root{
  --ink:#0F1A16;
  --ink-2:#1A2A23;
  --pine:#1C5D45;
  --pine-deep:#144736;
  --mark:#D6F24A;
  --mark-soft:#E9F9A6;
  --paper:#EFF1EC;
  --paper-2:#E3E8DE;
  --white:#FFFFFF;
  --slate:#586158;
  --slate-light:#858D84;
  --line:rgba(15,26,22,.13);
  --line-soft:rgba(15,26,22,.07);
  --max:1180px;
  --r-lg:20px;
  --r-md:12px;
  --r-pill:999px;
  --shadow:0 24px 50px -32px rgba(15,26,22,.45);
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"Pretendard Variable",Pretendard,-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Malgun Gothic",sans-serif;
  font-size:16px;
  line-height:1.72;
  letter-spacing:-.01em;
  word-break:keep-all;
  overflow-wrap:break-word;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{ margin:0 0 .5em; color:var(--ink); line-height:1.25; font-weight:800; letter-spacing:-.035em; }
h1{ font-size:clamp(2.1rem,4.4vw,3.4rem); line-height:1.16; }
h2{ font-size:clamp(1.7rem,3vw,2.5rem); }
h3{ font-size:1.2rem; letter-spacing:-.03em; }
h4{ font-size:.95rem; letter-spacing:-.02em; }
p{ margin:0 0 1.1em; color:var(--slate); max-width:66ch; }
a{ color:inherit; text-decoration:none; }
img{ max-width:100%; display:block; }
ul{ margin:0; padding:0; list-style:none; }
button{ font-family:inherit; cursor:pointer; }
b,strong{ font-weight:700; color:var(--ink); }

.wrap{ max-width:var(--max); margin:0 auto; padding:0 24px; }
.section{ padding:84px 0; }
.section-tight{ padding:40px 0; }
.section-line{ border-top:1px solid var(--line); }
.section-alt{ background:var(--ink); color:var(--paper); }
.section-alt p{ color:#A9B5AC; }
.section-alt h2,.section-alt h3,.section-alt h4,.section-alt b{ color:var(--white); }

/* 형광펜 하이라이트 — 이 사이트의 단 하나의 시그니처 */
.mark{
  background-image:linear-gradient(transparent 58%, var(--mark) 58%, var(--mark) 94%, transparent 94%);
  padding:0 .06em;
}

.eyebrow{
  display:inline-block;
  font-size:.8rem;
  font-weight:700;
  color:var(--pine);
  background:var(--mark-soft);
  border-radius:var(--r-pill);
  padding:4px 14px;
  margin-bottom:16px;
  letter-spacing:-.01em;
}
.section-alt .eyebrow,.page-hero .eyebrow{ background:rgba(214,242,74,.16); color:var(--mark); }
.lede{ font-size:1.06rem; max-width:58ch; }

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding:13px 24px;
  border-radius:var(--r-pill);
  font-weight:700; font-size:.94rem; letter-spacing:-.02em; white-space:nowrap;
  border:1.5px solid transparent;
  transition:background .18s ease, color .18s ease, border-color .18s ease;
}
.btn-primary{ background:var(--pine); color:var(--white); }
.btn-primary:hover{ background:var(--pine-deep); }
.btn-mark{ background:var(--mark); color:var(--ink); }
.btn-mark:hover{ background:#C8E837; }
.btn-outline{ border-color:var(--line); color:var(--ink); background:transparent; }
.btn-outline:hover{ border-color:var(--ink); background:var(--white); }
.btn-ghost-light{ border-color:rgba(255,255,255,.28); color:var(--white); }
.btn-ghost-light:hover{ border-color:var(--mark); color:var(--mark); }
.btn-sm{ padding:9px 18px; font-size:.86rem; }

/* ---------- Header ---------- */
.site-header{
  position:sticky; top:0; z-index:100;
  background:rgba(239,241,236,.9);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex; align-items:center; justify-content:space-between; gap:20px;
  padding:14px 24px; max-width:var(--max); margin:0 auto;
}
.brand{ display:flex; align-items:center; gap:10px; font-weight:800; font-size:1.05rem; letter-spacing:-.04em; }
.brand-mark{
  width:32px; height:32px; border-radius:9px;
  background:var(--pine); color:var(--mark);
  display:flex; align-items:center; justify-content:center;
  font-size:.8rem; font-weight:800; letter-spacing:-.02em; flex-shrink:0;
}
.brand em{ font-style:normal; font-weight:500; font-size:.76rem; color:var(--slate-light); margin-left:5px; letter-spacing:0; }
.nav-desktop{ display:flex; align-items:center; gap:4px; }
.nav-desktop a{
  font-size:.92rem; font-weight:600; color:var(--slate);
  padding:8px 14px; border-radius:var(--r-pill);
  transition:background .16s ease,color .16s ease;
}
.nav-desktop a:hover{ color:var(--ink); background:var(--paper-2); }
.nav-desktop a.active{ color:var(--ink); background:var(--white); box-shadow:inset 0 0 0 1px var(--line); }
.header-actions{ display:flex; align-items:center; gap:10px; }
.phone-link{ display:none; font-weight:700; font-size:.9rem; font-variant-numeric:tabular-nums; }
.phone-link:hover{ color:var(--pine); }

.nav-toggle{ display:none; flex-direction:column; gap:5px; background:none; border:none; padding:8px; }
.nav-toggle span{ width:20px; height:2px; background:var(--ink); display:block; border-radius:2px; }

.nav-mobile{ display:none; flex-direction:column; background:var(--paper); border-bottom:1px solid var(--line); padding:6px 24px 22px; }
.nav-mobile a{ padding:13px 0; border-bottom:1px solid var(--line-soft); font-size:1rem; font-weight:600; }
.nav-mobile .btn{ margin-top:16px; border-bottom:none; }
.nav-mobile.open{ display:flex; }

@media (max-width:980px){
  .nav-desktop{ display:none; }
  .nav-toggle{ display:flex; }
}
@media (min-width:981px){ .phone-link{ display:inline-block; } }
@media (max-width:560px){
  .header-actions .btn{ padding:8px 14px; font-size:.82rem; }
  .header-inner{ padding:12px 18px; }
  .brand em{ display:none; }
}

/* ---------- Hero ---------- */
.hero{ padding:80px 0 88px; }
.hero-grid{ display:grid; grid-template-columns:1.1fr .9fr; gap:60px; align-items:center; }
.hero-kicker{
  display:inline-flex; align-items:center; gap:8px;
  font-size:.82rem; font-weight:700; color:var(--pine);
  background:var(--white); border:1px solid var(--line);
  border-radius:var(--r-pill); padding:6px 16px; margin-bottom:22px;
}
.hero-kicker i{ width:6px; height:6px; border-radius:50%; background:var(--mark); box-shadow:0 0 0 3px rgba(214,242,74,.35); }
.hero h1{ margin-bottom:20px; }
.hero-lead{ font-size:1.08rem; max-width:50ch; }
.hero-cta{ display:flex; gap:12px; margin-top:28px; flex-wrap:wrap; }
.hero-stats{ display:flex; gap:14px; margin-top:44px; flex-wrap:wrap; }
.hero-stat{
  background:var(--white); border-radius:var(--r-md); padding:14px 20px;
  box-shadow:inset 0 0 0 1px var(--line-soft); min-width:132px;
}
.hero-stat b{ display:block; font-size:1.45rem; letter-spacing:-.04em; line-height:1.25; }
.hero-stat span{ font-size:.8rem; color:var(--slate-light); }

/* 노트 패널 */
.note-panel{
  background:var(--white);
  color:var(--ink);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow), inset 0 0 0 1px var(--line-soft);
  padding:28px 28px 10px;
}
.note-panel h3{ font-size:1rem; margin-bottom:4px; }
.section-alt .note-panel h3{ color:var(--ink); }
.note-sub{ font-size:.82rem; color:var(--slate-light); margin:0 0 12px; }
.note-row{
  display:flex; align-items:center; gap:14px;
  padding:11px 0; font-size:.93rem;
  border-top:1px solid var(--line-soft);
}
.note-row .day{ width:82px; flex-shrink:0; color:var(--slate-light); font-size:.82rem; font-weight:600; }
.note-row .task{ font-weight:600; letter-spacing:-.02em; }
.note-row .tick{
  width:19px; height:19px; border-radius:6px; flex-shrink:0;
  background:var(--mark); color:var(--ink);
  display:flex; align-items:center; justify-content:center;
  font-size:.66rem; font-weight:800; margin-left:auto;
}
.note-foot{
  margin:6px -28px 0; padding:14px 28px;
  border-top:1px solid var(--line-soft);
  font-size:.82rem; color:var(--slate-light);
}

@media (max-width:980px){
  .hero{ padding:56px 0 64px; }
  .hero-grid{ grid-template-columns:1fr; gap:40px; }
}

/* ---------- Grids & cards ---------- */
.grid-2{ display:grid; grid-template-columns:1fr 1fr; gap:36px; }
.grid-3{ display:grid; grid-template-columns:repeat(3,1fr); gap:20px; }
.grid-4{ display:grid; grid-template-columns:repeat(4,1fr); gap:16px; }
@media (max-width:980px){ .grid-3,.grid-4{ grid-template-columns:1fr 1fr; } .grid-2{ grid-template-columns:1fr; gap:32px; } }
@media (max-width:640px){ .grid-3,.grid-4{ grid-template-columns:1fr; } }

.card{
  background:var(--white);
  border-radius:var(--r-md);
  box-shadow:inset 0 0 0 1px var(--line-soft);
  padding:28px 26px;
}
.card h3{ margin-bottom:8px; }
.card p:last-of-type{ margin-bottom:0; }
.card .btn{ margin-top:16px; }
.section-alt .card{ background:var(--ink-2); box-shadow:inset 0 0 0 1px rgba(255,255,255,.1); }

/* 관리 시스템 — 카드 나열 대신 한 줄짜리 항목 */
.spec-list{ border-top:1px solid var(--line); margin-top:34px; }
.spec-row{
  display:grid; grid-template-columns:auto 250px 1fr; gap:24px; align-items:center;
  padding:24px 0; border-bottom:1px solid var(--line);
}
.spec-when{
  font-size:.78rem; font-weight:800; color:var(--pine);
  background:var(--mark-soft); border-radius:var(--r-pill); padding:5px 14px;
  white-space:nowrap;
}
.spec-row h3{ margin:0; }
.spec-row p{ margin:0; font-size:.95rem; }
@media (max-width:820px){
  .spec-row{ grid-template-columns:1fr; gap:8px; align-items:start; }
  .spec-when{ justify-self:start; }
}

/* 시험 타일 */
.exam-tile{
  display:flex; flex-direction:column;
  background:var(--ink-2); border-radius:var(--r-md);
  padding:24px 22px 22px; min-height:210px;
  transition:background .2s ease;
}
.exam-tile:hover{ background:#22352C; }
.exam-tile .code{ font-size:2rem; font-weight:800; letter-spacing:-.05em; color:var(--mark); line-height:1; margin-bottom:12px; }
.exam-tile p{ color:#A9B5AC; font-size:.92rem; margin-bottom:18px; }
.exam-tile .go{ margin-top:auto; font-size:.86rem; font-weight:700; color:var(--white); }
.exam-tile:hover .go{ color:var(--mark); }

/* ---------- Program cards ---------- */
.program-card{
  background:var(--white); border-radius:var(--r-lg);
  box-shadow:inset 0 0 0 1px var(--line-soft);
  overflow:hidden; display:flex; flex-direction:column;
}
.program-card-head{ background:var(--ink); color:var(--white); padding:26px 30px; }
.program-card-head span{ color:var(--mark); font-size:.8rem; font-weight:700; }
.program-card-head h3{ color:var(--white); margin:4px 0 0; font-size:1.4rem; }
.program-card-body{ padding:26px 30px 30px; flex:1; display:flex; flex-direction:column; }
.program-card-body ul{ margin:16px 0 22px; }
.program-card-body li{
  position:relative; padding:9px 0 9px 26px; font-size:.95rem; color:var(--slate);
  border-bottom:1px solid var(--line-soft);
}
.program-card-body li::before{
  content:"✓"; position:absolute; left:0; top:11px;
  font-size:.7rem; font-weight:800; color:var(--pine);
  width:17px; height:17px; border-radius:5px; background:var(--mark-soft);
  display:flex; align-items:center; justify-content:center;
}
.program-card-body li:last-child{ border-bottom:none; }
.program-card-body .btn{ margin-top:auto; align-self:flex-start; }

/* ---------- Timeline ---------- */
.timeline{ display:flex; flex-direction:column; }
.timeline-step{ display:grid; grid-template-columns:34px 1fr; gap:18px; padding:22px 0; border-top:1px solid var(--line); }
.timeline-step:last-child{ border-bottom:1px solid var(--line); }
.timeline-index{
  width:30px; height:30px; border-radius:9px; background:var(--mark);
  color:var(--ink); font-size:.8rem; font-weight:800;
  display:flex; align-items:center; justify-content:center;
}
.timeline-step h3{ margin-bottom:4px; }
.timeline-step p{ margin:0; font-size:.95rem; }

/* ---------- Campus ---------- */
.campus-card{ background:var(--white); border-radius:var(--r-md); overflow:hidden; box-shadow:inset 0 0 0 1px var(--line-soft); }
.campus-map{
  height:132px; display:flex; align-items:center; justify-content:center;
  color:var(--slate-light); font-size:.82rem; font-weight:600;
  background-color:var(--paper-2);
  background-image:linear-gradient(var(--line-soft) 1px, transparent 1px),linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size:22px 22px;
  border-radius:var(--r-md);
}
.campus-card .campus-map{ border-radius:0; }
.campus-map-lg{ height:280px; }
.campus-card-body{ padding:20px 22px 24px; }
.campus-tag{
  display:inline-block; font-size:.74rem; font-weight:700; color:var(--pine);
  background:var(--mark-soft); border-radius:var(--r-pill); padding:4px 12px; margin-bottom:10px;
}
.campus-card h3{ margin-bottom:4px; }
.campus-meta{ font-size:.92rem; color:var(--slate); margin-bottom:4px; }

/* ---------- Quotes ---------- */
.quote-card{ background:var(--white); border-radius:var(--r-md); padding:26px 26px 22px; box-shadow:inset 0 0 0 1px var(--line-soft); }
.quote-card p{ color:var(--ink); font-size:1rem; font-weight:500; letter-spacing:-.02em; }
.quote-name{ font-size:.84rem; color:var(--slate-light); font-weight:600; }

/* ---------- Contact band ---------- */
.cta-band{ background:var(--ink); color:var(--white); padding:64px 0; }
.cta-band .wrap{ display:flex; justify-content:space-between; align-items:center; gap:28px; flex-wrap:wrap; }
.cta-band h2{ color:var(--white); margin-bottom:6px; }
.cta-band p{ color:#A9B5AC; margin:0; }
.cta-actions{ display:flex; gap:12px; flex-wrap:wrap; }

/* ---------- Blog ---------- */
.post-row{ display:grid; grid-template-columns:110px 1fr; gap:24px; padding:26px 0; border-top:1px solid var(--line); }
.post-row:last-child{ border-bottom:1px solid var(--line); }
.post-date{ color:var(--slate-light); font-size:.84rem; font-variant-numeric:tabular-nums; padding-top:3px; }
.post-tag{
  display:inline-block; font-size:.74rem; font-weight:700; color:var(--pine);
  background:var(--mark-soft); border-radius:var(--r-pill); padding:3px 11px; margin-bottom:8px;
}
.post-row h3{ margin-bottom:6px; font-size:1.15rem; }
.post-row h3 a:hover{ color:var(--pine); }
@media (max-width:640px){ .post-row{ grid-template-columns:1fr; gap:6px; } }

.article-body{ font-size:1.02rem; }
.article-body h2{ margin-top:1.7em; }
.article-body h3{ margin-top:1.4em; }
.article-body table{ width:100%; border-collapse:collapse; margin:1.5em 0; font-size:.93rem; }
.article-body th,.article-body td{ border-bottom:1px solid var(--line); padding:11px 12px; text-align:left; }
.article-body th{ background:var(--paper-2); font-weight:700; }
.article-summary{ background:var(--white); border-radius:var(--r-md); border-left:5px solid var(--mark); padding:20px 24px; margin:1.6em 0; }
.article-summary p{ margin:0; color:var(--ink); }

/* ---------- Page hero ---------- */
.page-hero{ background:var(--ink); color:var(--white); padding:60px 0 64px; }
.page-hero h1{ color:var(--white); margin-bottom:12px; font-size:clamp(1.9rem,3.6vw,2.9rem); }
.page-hero p{ color:#A9B5AC; max-width:58ch; margin:0; }
.breadcrumb{ font-size:.82rem; color:#7D8A80; margin-bottom:16px; }
.breadcrumb a:hover{ color:var(--mark); }

/* ---------- Footer ---------- */
.site-footer{ background:var(--ink); color:#A9B5AC; padding:64px 0 28px; }
.footer-grid{ display:grid; grid-template-columns:1.5fr 1fr 1fr 1fr; gap:36px; }
.footer-brand{ color:var(--white); font-weight:800; font-size:1.05rem; letter-spacing:-.04em; margin-bottom:10px; }
.site-footer h4{ color:var(--white); margin-bottom:14px; }
.site-footer li{ margin-bottom:9px; font-size:.9rem; }
.site-footer a:hover{ color:var(--mark); }
.footer-bottom{
  margin-top:48px; padding-top:22px; border-top:1px solid rgba(255,255,255,.1);
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px; font-size:.8rem; color:#77837A;
}
@media (max-width:860px){ .footer-grid{ grid-template-columns:1fr 1fr; } }
@media (max-width:540px){ .footer-grid{ grid-template-columns:1fr; } }

/* ---------- Reveal ---------- */
.reveal{ opacity:0; transform:translateY(12px); transition:opacity .6s ease, transform .6s ease; }
.reveal.in{ opacity:1; transform:none; }
@media (prefers-reduced-motion: reduce){
  .reveal{ opacity:1; transform:none; transition:none; }
  html{ scroll-behavior:auto; }
}
a:focus-visible,button:focus-visible{ outline:3px solid var(--pine); outline-offset:3px; border-radius:4px; }

/* ---------- 404 / utils ---------- */
.error-page{ padding:110px 0; }
.error-page .code{ font-size:5rem; font-weight:800; letter-spacing:-.06em; color:var(--pine); line-height:1; }
.mt-0{ margin-top:0; }
.text-center{ text-align:center; }
.small{ font-size:.85rem; color:var(--slate-light); }