/* =========================================================
   TopEduPrep Compare Guide — "TwoPath" Editorial System
   시험 · 학습방법 비교 가이드 (정보성 SEO 콘텐츠 사이트)
   ========================================================= */

:root{
  --ink:        #122019;   /* deep forest-black */
  --ink-soft:   #1B2C22;
  --paper:      #EFF3F0;   /* cool pale sage-white */
  --paper-dim:  #E3EAE4;
  --green:      #1F7A5C;   /* verdict / primary accent */
  --green-dark: #175F47;
  --amber:      #D98F2B;   /* VS badge / highlight */
  --amber-soft: #F6E4C4;
  --slate:      #4C5A52;
  --line:       #D7DED8;
  --line-dark:  #2A3D31;
  --white:      #FFFFFF;

  --font-serif: 'Noto Serif KR', 'Newsreader', serif;
  --font-ui:    'Pretendard', -apple-system, BlinkMacSystemFont, 'Malgun Gothic', sans-serif;
  --font-mono:  'IBM Plex Mono', ui-monospace, Menlo, monospace;

  --maxw: 1120px;
  --radius: 14px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0; font-family:var(--font-ui); background:var(--paper); color:var(--ink);
  -webkit-font-smoothing:antialiased; line-height:1.65;
}
img,svg{ display:block; max-width:100%; }
a{ color:inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4,p{ margin:0; }
button{ font-family:inherit; cursor:pointer; }
.wrap{ max-width:var(--maxw); margin:0 auto; padding:0 24px; }

@media (prefers-reduced-motion: reduce){
  *{ animation-duration:.01ms !important; animation-iteration-count:1 !important; transition-duration:.01ms !important; scroll-behavior:auto !important; }
}
:focus-visible{ outline:3px solid var(--green); outline-offset:2px; }

.eyebrow{
  display:inline-flex; align-items:center; gap:8px; font-family:var(--font-mono);
  font-size:12px; letter-spacing:.08em; text-transform:uppercase; color:var(--green); font-weight:600;
}
.eyebrow::before{ content:""; width:16px; height:1px; background:var(--green); }

/* ---------- Header ---------- */
.site-header{ position:sticky; top:0; z-index:100; background:rgba(239,243,240,.94); backdrop-filter:blur(10px); border-bottom:1px solid var(--line); }
.nav{ display:flex; align-items:center; justify-content:space-between; padding:16px 24px; max-width:var(--maxw); margin:0 auto; }
.brand{ display:flex; align-items:center; gap:10px; font-weight:800; font-size:18px; font-family:var(--font-serif); letter-spacing:-.01em; }
.brand .mark{ width:32px; height:32px; flex:none; }
.brand .sub{ font-family:var(--font-mono); font-size:10px; color:var(--slate); font-weight:500; display:block; letter-spacing:.02em; }
.nav-links{ display:flex; align-items:center; gap:2px; }
.nav-links a{ padding:10px 14px; font-size:14.5px; font-weight:600; border-radius:8px; }
.nav-links a:hover{ background:var(--paper-dim); }
.nav-links a.active{ color:var(--green); }
.nav-cta{ display:flex; align-items:center; gap:10px; }

.btn{ display:inline-flex; align-items:center; justify-content:center; gap:8px; padding:11px 20px; border-radius:8px; font-weight:700; font-size:14.5px; border:1.5px solid transparent; transition:transform .15s ease, background .15s ease; white-space:nowrap; }
.btn:hover{ transform:translateY(-1px); }
.btn-green{ background:var(--green); color:var(--white); }
.btn-green:hover{ background:var(--green-dark); }
.btn-ghost{ border-color:var(--ink); color:var(--ink); }
.btn-ghost:hover{ background:var(--ink); color:var(--white); }
.btn-ghost-light{ border-color:rgba(255,255,255,.35); color:var(--white); }
.btn-ghost-light:hover{ background:rgba(255,255,255,.12); }
.btn-lg{ padding:15px 26px; font-size:15px; }
.btn-block{ width:100%; }
.cta-row{ display:flex; gap:12px; flex-wrap:wrap; }

.menu-toggle{ display:none; background:none; border:none; padding:8px; }
.menu-toggle span{ display:block; width:22px; height:2px; background:var(--ink); margin:5px 0; }
.mobile-nav{ display:none; position:fixed; inset:0; z-index:200; background:var(--ink); color:var(--white); padding:24px; flex-direction:column; }
.mobile-nav.open{ display:flex; }
.mobile-nav .close-row{ display:flex; justify-content:flex-end; }
.mobile-nav .close-row button{ background:none; border:none; color:var(--white); font-size:28px; }
.mobile-nav a{ font-size:20px; font-weight:700; padding:14px 0; border-bottom:1px solid var(--line-dark); font-family:var(--font-serif); }
.mobile-nav .cta-row{ margin-top:20px; }

/* ---------- Hero ---------- */
.hero{ padding:60px 0 48px; }
.hero h1{ font-family:var(--font-serif); font-size:clamp(30px,4.2vw,48px); line-height:1.25; letter-spacing:-.01em; font-weight:700; margin:16px 0 18px; }
.hero h1 em{ font-style:normal; color:var(--green); }
.hero p.lead{ font-size:16.5px; color:var(--slate); max-width:640px; }

/* ---------- VS Matchup card (signature element) ---------- */
.vs-card{
  background:var(--white); border:1px solid var(--line); border-radius:var(--radius); overflow:hidden;
  display:grid; grid-template-columns:1fr auto 1fr; position:relative;
}
.vs-side{ padding:26px 24px; display:flex; flex-direction:column; gap:10px; }
.vs-side.left{ border-right:1px solid var(--line); }
.vs-side .side-label{ font-family:var(--font-mono); font-size:11px; letter-spacing:.06em; text-transform:uppercase; color:var(--slate); }
.vs-side h3{ font-family:var(--font-serif); font-size:21px; font-weight:700; }
.vs-side p{ font-size:13.5px; color:var(--slate); }
.vs-side ul{ display:flex; flex-direction:column; gap:5px; margin-top:4px; }
.vs-side ul li{ font-size:13px; padding-left:14px; position:relative; }
.vs-side ul li::before{ content:"·"; position:absolute; left:0; color:var(--green); font-weight:700; }
.vs-badge{
  align-self:center; justify-self:center; width:52px; height:52px; border-radius:50%;
  background:var(--ink); color:var(--amber); display:flex; align-items:center; justify-content:center;
  font-family:var(--font-mono); font-weight:700; font-size:13px; letter-spacing:.03em;
  border:3px solid var(--paper); box-shadow:0 0 0 1px var(--line);
  position:relative; z-index:2; margin:0 -1px;
}
.vs-verdict{
  grid-column:1 / -1; background:var(--amber-soft); border-top:1px solid var(--line);
  padding:14px 24px; font-size:13.5px; display:flex; gap:10px; align-items:flex-start;
}
.vs-verdict strong{ color:var(--green-dark); flex:none; font-family:var(--font-mono); font-size:11px; letter-spacing:.05em; text-transform:uppercase; padding-top:2px; }

/* small variant for hub grid links */
.vs-card.link-card{ text-decoration:none; transition:border-color .15s ease, transform .15s ease; }
.vs-card.link-card:hover{ border-color:var(--green); transform:translateY(-2px); }
a.vs-card{ display:grid; }

/* ---------- Hub grid ---------- */
.compare-grid{ display:grid; grid-template-columns:repeat(2,1fr); gap:20px; }

/* ---------- Section basics ---------- */
.section{ padding:72px 0; }
.section-tight{ padding:48px 0; }
.section-head{ max-width:640px; margin-bottom:36px; }
.section-head h2{ font-family:var(--font-serif); font-size:clamp(24px,2.8vw,32px); font-weight:700; margin:12px 0 10px; }
.section-head p{ color:var(--slate); font-size:15.5px; }
.on-ink{ background:var(--ink); color:var(--white); }
.on-ink .section-head p{ color:#AEC2B7; }
.on-dim{ background:var(--paper-dim); }

/* ---------- Article layout ---------- */
.article-hero{ padding:48px 0 32px; }
.breadcrumb{ font-family:var(--font-mono); font-size:12px; color:var(--slate); margin-bottom:14px; }
.breadcrumb a:hover{ color:var(--green); }
.category-tag{ font-family:var(--font-mono); font-size:11px; font-weight:700; color:var(--green); background:#E4F1EB; padding:4px 10px; border-radius:999px; display:inline-block; margin-bottom:14px; }
.article-hero h1{ font-family:var(--font-serif); font-size:clamp(28px,3.6vw,42px); font-weight:700; line-height:1.28; letter-spacing:-.01em; margin-bottom:14px; }
.article-hero p.dek{ font-size:16px; color:var(--slate); max-width:680px; }
.article-meta{ display:flex; gap:16px; margin-top:18px; font-size:12.5px; color:var(--slate); font-family:var(--font-mono); }

.verdict-box{
  background:var(--ink); color:var(--white); border-radius:var(--radius); padding:24px 26px; margin:32px 0;
  display:flex; gap:16px; align-items:flex-start;
}
.verdict-box .vb-icon{ width:28px; height:28px; flex:none; margin-top:2px; }
.verdict-box .vb-label{ font-family:var(--font-mono); font-size:11px; color:var(--amber); letter-spacing:.06em; text-transform:uppercase; margin-bottom:6px; }
.verdict-box p{ font-size:15px; line-height:1.7; color:#DCE7E0; }
.verdict-box strong{ color:var(--white); }

.article-body{ max-width:760px; }
.article-body h2{ font-family:var(--font-serif); font-size:24px; font-weight:700; margin:44px 0 14px; letter-spacing:-.01em; }
.article-body h3{ font-size:17.5px; font-weight:700; margin:26px 0 10px; }
.article-body p{ font-size:15.5px; color:var(--ink); margin-bottom:14px; }
.article-body p.muted{ color:var(--slate); }
.article-body ul.check-list{ display:flex; flex-direction:column; gap:10px; margin:16px 0; }
.article-body ul.check-list li{ font-size:15px; padding-left:26px; position:relative; }
.article-body ul.check-list li::before{ content:"✓"; position:absolute; left:0; top:0; color:var(--green); font-weight:700; }

/* ---------- Comparison table ---------- */
.table-wrap{ overflow-x:auto; border:1px solid var(--line); border-radius:var(--radius); background:var(--white); margin:20px 0; }
table{ width:100%; border-collapse:collapse; min-width:560px; }
th,td{ text-align:left; padding:13px 18px; font-size:14px; border-bottom:1px solid var(--line); vertical-align:top; }
thead th{ background:var(--paper-dim); font-family:var(--font-mono); font-size:11px; text-transform:uppercase; letter-spacing:.05em; color:var(--slate); }
tbody tr:last-child td{ border-bottom:none; }
td.row-label{ font-weight:700; font-family:var(--font-mono); font-size:12.5px; color:var(--slate); white-space:nowrap; }
.pill{ display:inline-block; padding:3px 9px; border-radius:999px; font-size:11px; font-weight:700; font-family:var(--font-mono); }
.pill-green{ background:#E4F1EB; color:var(--green-dark); }
.pill-amber{ background:var(--amber-soft); color:#8A5E10; }
.pill-slate{ background:var(--paper-dim); color:var(--slate); }

/* ---------- Decision checklist ---------- */
.decision-grid{ display:grid; grid-template-columns:1fr 1fr; gap:18px; margin:20px 0; }
.decision-card{ background:var(--white); border:1px solid var(--line); border-radius:12px; padding:20px 22px; }
.decision-card h4{ font-size:15px; font-weight:800; margin-bottom:10px; color:var(--green-dark); }
.decision-card ul{ display:flex; flex-direction:column; gap:8px; }
.decision-card li{ font-size:13.5px; padding-left:16px; position:relative; color:var(--ink); }
.decision-card li::before{ content:"—"; position:absolute; left:0; color:var(--slate); }

/* ---------- Related articles ---------- */
.related-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:16px; }
.related-card{ background:var(--white); border:1px solid var(--line); border-radius:12px; padding:18px 20px; transition:border-color .15s ease; }
.related-card:hover{ border-color:var(--green); }
.related-card .cat{ font-family:var(--font-mono); font-size:10.5px; color:var(--green); text-transform:uppercase; letter-spacing:.05em; }
.related-card h4{ font-family:var(--font-serif); font-size:15.5px; font-weight:700; margin-top:6px; line-height:1.4; }

/* ---------- FAQ ---------- */
.faq-list{ display:flex; flex-direction:column; gap:12px; }
.faq-item{ background:var(--white); border:1px solid var(--line); border-radius:12px; overflow:hidden; }
.faq-q{ padding:18px 22px; display:flex; justify-content:space-between; align-items:center; cursor:pointer; font-weight:700; font-size:15px; }
.faq-q .plus{ font-family:var(--font-mono); color:var(--green); font-size:18px; transition:transform .2s ease; flex:none; margin-left:12px; }
.faq-item.open .faq-q .plus{ transform:rotate(45deg); }
.faq-a{ max-height:0; overflow:hidden; transition:max-height .25s ease; }
.faq-item.open .faq-a{ max-height:400px; }
.faq-a-inner{ padding:0 22px 20px; font-size:14.5px; color:var(--slate); line-height:1.7; }

/* ---------- CTA band ---------- */
.cta-band{ background:var(--ink); color:var(--white); border-radius:20px; padding:48px 44px; display:flex; align-items:center; justify-content:space-between; gap:28px; flex-wrap:wrap; }
.cta-band h2{ font-family:var(--font-serif); font-size:clamp(22px,2.4vw,28px); font-weight:700; margin-bottom:10px; max-width:480px; }
.cta-band p{ color:#AEC2B7; font-size:14.5px; }

/* ---------- Footer ---------- */
footer{ background:var(--ink); color:#AEC2B7; padding:48px 0 26px; }
.foot-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr; gap:36px; padding-bottom:30px; border-bottom:1px solid var(--line-dark); }
.foot-brand .brand{ color:var(--white); }
.foot-brand p{ font-size:13px; margin-top:12px; max-width:280px; color:#84987F; }
.foot-col h5{ font-family:var(--font-mono); font-size:11px; letter-spacing:.06em; text-transform:uppercase; color:#7C9086; margin-bottom:12px; }
.foot-col ul{ display:flex; flex-direction:column; gap:9px; }
.foot-col a{ font-size:13.5px; color:#C7D6CB; }
.foot-col a:hover{ color:var(--amber); }
.foot-bottom{ display:flex; justify-content:space-between; align-items:center; padding-top:20px; font-size:12px; color:#5E7268; flex-wrap:wrap; gap:8px; }

/* ---------- Sidebar (article pages) ---------- */
.two-col{ display:grid; grid-template-columns:1fr 280px; gap:40px; align-items:start; }
.side-box{ position:sticky; top:96px; background:var(--white); border:1px solid var(--line); border-radius:12px; padding:22px; }
.side-box h5{ font-family:var(--font-mono); font-size:11px; letter-spacing:.06em; text-transform:uppercase; color:var(--slate); margin-bottom:14px; }
.side-box .toc a{ display:block; padding:7px 0; font-size:13.5px; color:var(--ink); border-bottom:1px dashed var(--line); }
.side-box .toc a:last-child{ border-bottom:none; }
.side-box .toc a:hover{ color:var(--green); }
.side-cta{ margin-top:18px; }

/* ---------- Utility ---------- */
.tag-row{ display:flex; gap:8px; flex-wrap:wrap; }
.small-tag{ font-family:var(--font-mono); font-size:11px; padding:4px 10px; border:1px solid var(--line); border-radius:999px; color:var(--slate); }
.center{ text-align:center; }
.divider{ height:1px; background:var(--line); margin:44px 0; }

@media (max-width: 980px){
  .compare-grid{ grid-template-columns:1fr; }
  .decision-grid{ grid-template-columns:1fr; }
  .related-grid{ grid-template-columns:1fr; }
  .foot-grid{ grid-template-columns:1fr 1fr; }
  .two-col{ grid-template-columns:1fr; }
  .side-box{ position:static; }
  .vs-card{ grid-template-columns:1fr; }
  .vs-side.left{ border-right:none; border-bottom:1px solid var(--line); }
  .vs-badge{ margin:-14px auto; }
}
@media (max-width: 720px){
  .nav-links{ display:none; }
  .menu-toggle{ display:block; }
  .foot-grid{ grid-template-columns:1fr; gap:26px; }
  .cta-band{ flex-direction:column; align-items:flex-start; }
  table{ min-width:480px; }
}