/* ==========================================================================
   TOP EDU PREP — Shared Stylesheet
   Concept: "성적표(Score Report) / Exam Ticket" ledger aesthetic
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Newsreader:ital,opsz,wght@0,6..72,400;0,6..72,500;0,6..72,600;1,6..72,500&family=IBM+Plex+Mono:wght@400;500;600&display=swap');
@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-SemiBold.woff2') format('woff2');
  font-weight: 600; 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;
}

:root{
  --ink:#101A2E;
  --ink-2:#1F3A5F;
  --ink-soft:#5B6472;
  --paper:#EEF1F5;
  --paper-2:#F8F9FB;
  --card:#FFFFFF;
  --gold:#B8925A;
  --gold-deep:#8F6B3C;
  --red:#B7382E;
  --green:#3E6B4F;
  --line:#D7DDE6;
  --line-strong:#B7C1CE;
  --radius:2px;
  --serif:'Newsreader', 'Noto Serif KR', serif;
  --sans:'Pretendard', -apple-system, BlinkMacSystemFont, sans-serif;
  --mono:'IBM Plex Mono', monospace;
  --shadow: 0 1px 2px rgba(16,26,46,.06), 0 8px 24px rgba(16,26,46,.06);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--sans);
  color:var(--ink);
  background:var(--paper);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4{
  font-family:var(--serif);
  font-weight:600;
  line-height:1.2;
  margin:0 0 .5em;
  letter-spacing:-.01em;
}
p{margin:0 0 1em;}
ul{margin:0;padding:0;list-style:none;}
.container{max-width:1120px;margin:0 auto;padding:0 24px;}
.eyebrow{
  font-family:var(--mono);
  font-size:.72rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--gold-deep);
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--gold-deep);}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms !important; transition-duration:.001ms !important;}
}

/* ---------------- Skip link / a11y ---------------- */
.skip-link{
  position:absolute; left:-999px; top:0; background:var(--ink); color:#fff;
  padding:10px 16px; z-index:999;
}
.skip-link:focus{left:12px; top:12px;}
:focus-visible{outline:2px solid var(--gold); outline-offset:2px;}

/* ---------------- Top utility bar ---------------- */
.topbar{
  background:var(--ink);
  color:#DCE3EE;
  font-family:var(--mono);
  font-size:.74rem;
}
.topbar .container{
  display:flex; justify-content:space-between; align-items:center;
  padding-top:8px; padding-bottom:8px; gap:12px; flex-wrap:wrap;
}
.topbar a{opacity:.9; margin-left:16px;}
.topbar a:hover{color:var(--gold);}
.topbar .tb-left span{opacity:.75;}

/* ---------------- Header / Nav ---------------- */
.site-header{
  position:sticky; top:0; z-index:100;
  background:rgba(238,241,245,.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.nav{
  display:flex; align-items:center; justify-content:space-between;
  padding:16px 0;
}
.brand{display:flex; align-items:center; gap:10px;}
.brand-mark{
  width:38px;height:38px;border:1.5px solid var(--ink);border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--serif); font-weight:600; font-size:1.05rem;
}
.brand-name{font-family:var(--serif); font-weight:600; font-size:1.18rem; letter-spacing:-.01em;}
.brand-name small{display:block; font-family:var(--mono); font-size:.6rem; letter-spacing:.12em; color:var(--ink-soft); font-weight:400; text-transform:uppercase;}

.nav-links{display:flex; align-items:center; gap:28px;}
.nav-links a{
  font-size:.92rem; font-weight:500; color:var(--ink-2);
  position:relative; padding:4px 0;
}
.nav-links a::after{
  content:""; position:absolute; left:0; right:0; bottom:0; height:1px;
  background:var(--gold); transform:scaleX(0); transform-origin:left;
  transition:transform .25s ease;
}
.nav-links a:hover::after, .nav-links a[aria-current="page"]::after{transform:scaleX(1);}
.nav-links a[aria-current="page"]{color:var(--ink);}
.nav-cta{
  background:var(--ink); color:#fff !important; padding:10px 18px !important;
  border-radius:var(--radius); font-family:var(--mono); font-size:.78rem !important;
  letter-spacing:.04em;
}
.nav-cta::after{display:none;}
.nav-cta:hover{background:var(--ink-2);}
.nav-toggle{display:none;}

@media (max-width: 880px){
  .nav-links{
    position:fixed; inset:64px 0 0 0; background:var(--paper-2);
    flex-direction:column; align-items:flex-start; padding:28px 24px;
    gap:20px; transform:translateX(100%); transition:transform .3s ease;
    overflow-y:auto;
  }
  .nav-links.open{transform:translateX(0);}
  .nav-toggle{
    display:flex; flex-direction:column; gap:5px; background:none; border:none;
    padding:8px; cursor:pointer;
  }
  .nav-toggle span{width:22px;height:2px;background:var(--ink);}
  .topbar .tb-right{display:none;}
}

/* ---------------- Buttons ---------------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding:13px 26px; border-radius:var(--radius); font-weight:600; font-size:.92rem;
  border:1px solid var(--ink); cursor:pointer; transition:all .2s ease;
}
.btn-primary{background:var(--ink); color:#fff;}
.btn-primary:hover{background:var(--ink-2); border-color:var(--ink-2);}
.btn-outline{background:transparent; color:var(--ink); border-color:var(--ink);}
.btn-outline:hover{background:var(--ink); color:#fff;}
.btn-gold{background:var(--gold); border-color:var(--gold); color:#fff;}
.btn-gold:hover{background:var(--gold-deep); border-color:var(--gold-deep);}
.btn-row{display:flex; gap:14px; flex-wrap:wrap;}

/* ---------------- Hero ---------------- */
.hero{
  padding:64px 0 72px;
  border-bottom:1px solid var(--line);
  background:
    linear-gradient(180deg, var(--paper-2), var(--paper));
}
.hero-grid{
  display:grid; grid-template-columns:1.15fr .85fr; gap:56px; align-items:center;
}
.hero h1{font-size:clamp(2rem, 3.6vw, 2.9rem);}
.hero .lede{font-size:1.08rem; color:var(--ink-soft); max-width:46ch;}
.hero-stats{display:flex; gap:28px; margin:28px 0 30px; flex-wrap:wrap;}
.hero-stat b{display:block; font-family:var(--serif); font-size:1.7rem; color:var(--ink);}
.hero-stat span{font-size:.78rem; color:var(--ink-soft);}

/* Score ticket / D-day widget — signature element */
.ticket{
  background:var(--card);
  border:1px solid var(--line-strong);
  border-radius:4px;
  box-shadow:var(--shadow);
  position:relative;
  padding:0;
  overflow:hidden;
}
.ticket-head{
  background:var(--ink); color:#fff; padding:16px 22px;
  display:flex; justify-content:space-between; align-items:center;
  font-family:var(--mono); font-size:.72rem; letter-spacing:.1em; text-transform:uppercase;
}
.ticket-body{padding:22px;}
.ticket-perf{
  position:relative; height:0; border-top:1.5px dashed var(--line-strong); margin:0 0;
}
.ticket-perf::before, .ticket-perf::after{
  content:""; position:absolute; top:-9px; width:18px; height:18px; background:var(--paper);
  border-radius:50%;
}
.ticket-perf::before{left:-31px;}
.ticket-perf::after{right:-31px;}
.dday-row{display:flex; align-items:baseline; gap:14px; margin-bottom:14px;}
.dday-num{font-family:var(--mono); font-size:2.6rem; font-weight:600; color:var(--red); line-height:1;}
.dday-label{font-size:.85rem; color:var(--ink-soft);}
.ticket-exam{font-family:var(--serif); font-size:1.15rem; font-weight:600; margin-bottom:2px;}
.ticket-date{font-family:var(--mono); font-size:.82rem; color:var(--ink-soft);}
.ticket-list{padding:16px 22px 22px; display:grid; gap:10px;}
.ticket-list li{
  display:flex; justify-content:space-between; font-size:.85rem;
  padding-bottom:10px; border-bottom:1px solid var(--line);
}
.ticket-list li:last-child{border-bottom:none; padding-bottom:0;}
.ticket-list b{font-family:var(--mono); color:var(--ink);}

/* ---------------- Section scaffolding ---------------- */
section{padding:76px 0;}
.section-alt{background:var(--card); border-top:1px solid var(--line); border-bottom:1px solid var(--line);}
.section-head{max-width:640px; margin-bottom:44px;}
.section-head h2{font-size:clamp(1.6rem,2.6vw,2.1rem);}
.section-head p{color:var(--ink-soft);}
.section-num{font-family:var(--mono); font-size:.78rem; color:var(--gold-deep);}

/* ---------------- Strength / Feature grid ---------------- */
.grid-3{display:grid; grid-template-columns:repeat(3,1fr); gap:24px;}
.grid-2{display:grid; grid-template-columns:repeat(2,1fr); gap:24px;}
.feature-card{
  background:var(--card); border:1px solid var(--line); border-radius:3px; padding:28px 26px;
  transition:border-color .2s ease, transform .2s ease;
}
.feature-card:hover{border-color:var(--gold); transform:translateY(-2px);}
.feature-num{font-family:var(--mono); color:var(--gold-deep); font-size:.8rem; margin-bottom:12px; display:block;}
.feature-card h3{font-size:1.12rem; margin-bottom:8px;}
.feature-card p{color:var(--ink-soft); font-size:.92rem; margin-bottom:0;}

/* ---------------- Online system strip ---------------- */
.online-strip{
  background:var(--ink); color:#EDEFF3; border-radius:4px; padding:44px 40px;
  display:grid; grid-template-columns:1fr 1fr; gap:40px; align-items:center;
}
.online-strip h2{color:#fff;}
.online-strip .lede{color:#B9C2D1;}
.online-checklist{display:grid; gap:14px;}
.online-checklist li{display:flex; gap:12px; align-items:flex-start; font-size:.94rem; color:#DCE3EE;}
.check-ico{
  flex:0 0 20px; height:20px; width:20px; border:1px solid var(--gold); border-radius:50%;
  color:var(--gold); display:flex; align-items:center; justify-content:center; font-size:.7rem; margin-top:2px;
}

/* ---------------- Curriculum table / cards ---------------- */
.subject-tabs{display:flex; gap:8px; flex-wrap:wrap; margin-bottom:30px; border-bottom:1px solid var(--line); padding-bottom:0;}
.subject-tab{
  font-family:var(--mono); font-size:.78rem; letter-spacing:.04em; padding:10px 18px;
  border:1px solid var(--line); border-bottom:none; background:var(--paper-2); cursor:pointer;
  border-radius:3px 3px 0 0; color:var(--ink-soft);
}
.subject-tab[aria-selected="true"]{background:var(--card); color:var(--ink); border-color:var(--line-strong); font-weight:600;}
.subject-panel{display:none;}
.subject-panel.active{display:block;}
.curr-row{
  display:grid; grid-template-columns:120px 1fr 1fr; gap:20px; padding:20px 0; border-bottom:1px solid var(--line);
}
.curr-row:first-child{padding-top:0;}
.curr-level{font-family:var(--mono); font-size:.78rem; color:var(--gold-deep); padding-top:3px;}
.curr-row h4{margin-bottom:6px; font-size:1.02rem;}
.curr-row p{color:var(--ink-soft); font-size:.9rem; margin-bottom:0;}

/* ---------------- Testimonials ---------------- */
.review-card{
  background:var(--card); border:1px solid var(--line); border-radius:3px; padding:26px;
  display:flex; flex-direction:column; gap:14px;
}
.review-stars{color:var(--gold); font-family:var(--mono); letter-spacing:2px;}
.review-body{font-size:.94rem; color:var(--ink); flex:1;}
.review-meta{
  display:flex; justify-content:space-between; align-items:center; font-size:.8rem; color:var(--ink-soft);
  border-top:1px solid var(--line); padding-top:12px; font-family:var(--mono);
}

/* ---------------- Locations ---------------- */
.loc-card{background:var(--card); border:1px solid var(--line); border-radius:3px; overflow:hidden;}
.loc-head{padding:22px 24px; border-bottom:1px solid var(--line); display:flex; justify-content:space-between; align-items:baseline;}
.loc-head h3{margin-bottom:0; font-size:1.15rem;}
.loc-tag{font-family:var(--mono); font-size:.72rem; color:var(--gold-deep);}
.loc-body{padding:22px 24px; display:grid; gap:10px; font-size:.9rem;}
.loc-body .row{display:flex; gap:10px;}
.loc-body .row b{flex:0 0 74px; color:var(--ink-soft); font-weight:500;}

/* ---------------- Exam calendar ---------------- */
.table-wrap{overflow-x:auto; border:1px solid var(--line); border-radius:3px;}
table.examtbl{width:100%; border-collapse:collapse; font-size:.88rem; min-width:640px;}
table.examtbl th{
  text-align:left; font-family:var(--mono); font-size:.72rem; letter-spacing:.06em; text-transform:uppercase;
  color:var(--ink-soft); background:var(--paper-2); padding:14px 16px; border-bottom:1px solid var(--line-strong);
}
table.examtbl td{padding:14px 16px; border-bottom:1px solid var(--line);}
table.examtbl tr:last-child td{border-bottom:none;}
.badge{
  display:inline-block; font-family:var(--mono); font-size:.7rem; padding:3px 9px; border-radius:20px;
  background:rgba(183,56,46,.1); color:var(--red); font-weight:600;
}
.badge-open{background:rgba(62,107,79,.12); color:var(--green);}

/* ---------------- Mock test ---------------- */
.mocktest-card{background:var(--card); border:1px solid var(--line); border-radius:3px; padding:30px; box-shadow:var(--shadow);}
.mt-progress{height:4px; background:var(--line); border-radius:4px; margin-bottom:24px; overflow:hidden;}
.mt-progress-bar{height:100%; background:var(--gold); width:0%; transition:width .3s ease;}
.mt-meta{display:flex; justify-content:space-between; font-family:var(--mono); font-size:.78rem; color:var(--ink-soft); margin-bottom:18px;}
.mt-timer{color:var(--red); font-weight:600;}
.mt-question{font-size:1.08rem; margin-bottom:22px; font-weight:500;}
.mt-choices{display:grid; gap:10px; margin-bottom:26px;}
.mt-choice{
  text-align:left; border:1px solid var(--line); background:var(--paper-2); padding:14px 16px;
  border-radius:3px; cursor:pointer; font-size:.94rem; font-family:var(--sans); display:flex; gap:12px;
}
.mt-choice:hover{border-color:var(--gold);}
.mt-choice.selected{border-color:var(--ink); background:var(--paper);}
.mt-choice.correct{border-color:var(--green); background:rgba(62,107,79,.08);}
.mt-choice.incorrect{border-color:var(--red); background:rgba(183,56,46,.08);}
.mt-choice .lab{
  flex:0 0 22px; height:22px; border:1px solid var(--line-strong); border-radius:50%;
  display:flex; align-items:center; justify-content:center; font-family:var(--mono); font-size:.72rem;
}
.mt-actions{display:flex; justify-content:space-between; align-items:center;}
.mt-explain{
  margin-top:16px; padding:14px 16px; background:var(--paper-2); border-left:2px solid var(--gold);
  font-size:.88rem; color:var(--ink-soft); display:none;
}
.mt-explain.show{display:block;}
.mt-select{
  font-family:var(--mono); padding:10px 14px; border:1px solid var(--line-strong); background:var(--card);
  border-radius:3px; font-size:.82rem;
}
.mt-result{text-align:center; padding:20px 0;}
.mt-result .score{font-family:var(--serif); font-size:3.2rem; color:var(--ink);}

/* ---------------- FAQ ---------------- */
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%; text-align:left; background:none; border:none; padding:20px 0; cursor:pointer;
  display:flex; justify-content:space-between; align-items:center; font-weight:600; font-size:.98rem;
  color:var(--ink); font-family:var(--sans);
}
.faq-q .plus{font-family:var(--mono); color:var(--gold-deep); transition:transform .2s ease;}
.faq-item[open] .plus{transform:rotate(45deg);}
.faq-a{padding:0 0 20px; color:var(--ink-soft); font-size:.92rem;}

/* ---------------- CTA band ---------------- */
.cta-band{
  background:var(--ink); color:#fff; text-align:center; padding:64px 24px; border-radius:4px;
}
.cta-band h2{color:#fff;}
.cta-band p{color:#B9C2D1; max-width:52ch; margin:0 auto 26px;}

/* ---------------- Footer ---------------- */
.site-footer{background:var(--ink); color:#B9C2D1; padding:56px 0 28px; margin-top:80px;}
.foot-grid{display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:36px; margin-bottom:40px;}
.foot-brand .brand-name{color:#fff;}
.foot-brand p{font-size:.86rem; margin-top:12px; color:#8C97AA;}
.foot-col h5{
  font-family:var(--mono); font-size:.72rem; letter-spacing:.1em; text-transform:uppercase;
  color:#8C97AA; margin-bottom:16px;
}
.foot-col li{margin-bottom:10px; font-size:.88rem;}
.foot-col a:hover{color:var(--gold);}
.foot-bottom{
  border-top:1px solid #2A3A54; padding-top:22px; display:flex; justify-content:space-between;
  font-size:.78rem; color:#7C8AA0; flex-wrap:wrap; gap:10px;
}

/* ---------------- Breadcrumb / page header ---------------- */
.page-hero{padding:44px 0 40px; border-bottom:1px solid var(--line); background:var(--paper-2);}
.crumb{font-family:var(--mono); font-size:.76rem; color:var(--ink-soft); margin-bottom:14px;}
.crumb a:hover{color:var(--gold-deep);}
.page-hero h1{font-size:clamp(1.7rem,3vw,2.3rem); margin-bottom:8px;}
.page-hero p{color:var(--ink-soft); max-width:60ch; margin-bottom:0;}

/* ---------------- Sticky mobile CTA ---------------- */
.mobile-cta{
  display:none; position:fixed; left:0; right:0; bottom:0; z-index:200;
  background:var(--ink); padding:12px 16px; gap:10px;
  box-shadow:0 -4px 16px rgba(0,0,0,.2);
}
.mobile-cta a{
  flex:1; text-align:center; padding:12px; border-radius:3px; font-size:.86rem; font-weight:600;
}
@media (max-width:880px){
  .mobile-cta{display:flex;}
  body{padding-bottom:64px;}
}

/* ---------------- Responsive ---------------- */
@media (max-width: 960px){
  .hero-grid{grid-template-columns:1fr;}
  .grid-3, .grid-2{grid-template-columns:1fr;}
  .online-strip{grid-template-columns:1fr; padding:32px 24px;}
  .foot-grid{grid-template-columns:1fr 1fr;}
  .curr-row{grid-template-columns:1fr; gap:6px;}
}
@media (max-width: 560px){
  .foot-grid{grid-template-columns:1fr;}
  section{padding:56px 0;}
  .hero{padding:44px 0 52px;}
  .ticket-perf::before{left:-10px;} .ticket-perf::after{right:-10px;}
}