:root{
  --ink:#2b2a4a;
  --ink-2:#3d3b63;
  --paper:#fff8ef;
  --paper-2:#ffffff;
  --coral:#ff6b4a;
  --coral-dark:#e84f2c;
  --coral-light:#ffe3da;
  --sky:#3aa9e0;
  --sky-light:#e3f4fc;
  --sunny:#ffc93c;
  --sunny-light:#fff3d6;
  --mint:#2fbf8f;
  --mint-light:#dcf5ea;
  --lavender:#8b7ff0;
  --lavender-light:#ece8ff;
  --slate:#6b6688;
  --slate-2:#a29cc0;
  --line:#f0e4d8;
  --radius:22px;
}
*{box-sizing:border-box; margin:0; padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:'Pretendard', -apple-system, sans-serif;
  background:var(--paper);
  color:var(--ink);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-family:'Jua', 'Pretendard', sans-serif; font-weight:400; letter-spacing:-0.01em;}
h1,h2{font-family:'Black Han Sans', 'Jua', sans-serif;}
.mark{background:linear-gradient(180deg, transparent 60%, var(--sunny) 60%); padding:0 2px; box-decoration-break:clone; -webkit-box-decoration-break:clone;}
.mark-coral{background:linear-gradient(180deg, transparent 60%, var(--coral-light) 60%); padding:0 2px; box-decoration-break:clone; -webkit-box-decoration-break:clone;}
.mono{font-family:'JetBrains Mono', monospace;}
a{color:inherit; text-decoration:none;}
button{font-family:inherit; cursor:pointer;}
img{max-width:100%; display:block;}
.wrap{max-width:1180px; margin:0 auto; padding:0 32px;}
:focus-visible{outline:2px solid var(--coral); outline-offset:3px;}

/* ---------- Header ---------- */
header{
  position:sticky; top:0; z-index:100;
  background:rgba(255,248,239,0.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex; align-items:center; justify-content:space-between; height:76px;}
.logo{display:flex; align-items:center; gap:10px; font-family:'Jua', sans-serif; font-size:20px; color:var(--ink);}
.logo-mark{
  width:38px; height:38px; border-radius:14px;
  background:linear-gradient(135deg, var(--coral), var(--sunny));
  display:flex; align-items:center; justify-content:center;
  color:#fff; font-size:12px; font-weight:700;
  font-family:'JetBrains Mono', monospace;
}
.nav-links{display:flex; gap:20px; font-size:13.5px; font-weight:600; color:var(--slate);}
.nav-links a{position:relative; padding:6px 0; white-space:nowrap;}
.nav-links a:hover{color:var(--ink);}
.nav-links a.current{color:var(--ink);}
.nav-links a::after{
  content:''; position:absolute; left:0; bottom:0; width:0; height:2px; border-radius:2px;
  background:var(--coral); transition:width .25s ease;
}
.nav-links a:hover::after, .nav-links a.current::after{width:100%;}
.nav-cta{
  display:flex; flex-direction:column; align-items:center; justify-content:center; gap:2px;
  background:var(--coral); color:#fff; font-size:13.5px; font-weight:700; line-height:1.2;
  padding:10px 22px; border:none; border-radius:999px; letter-spacing:0.01em;
}
.nav-cta-num{font-family:'JetBrains Mono', monospace; font-size:11px; font-weight:500; color:#ffe3da; letter-spacing:0;}
.nav-cta:hover{background:var(--coral-dark);}
.nav-right{display:flex; align-items:center; gap:14px;}
.burger{
  display:none; width:38px; height:38px; padding:0; border:none; background:transparent;
  flex-direction:column; align-items:center; justify-content:center; gap:5px; flex-shrink:0;
}
.burger span{display:block; width:22px; height:2px; border-radius:2px; background:var(--ink); transition:transform .2s ease, opacity .2s ease;}
.burger.active span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.burger.active span:nth-child(2){opacity:0;}
.burger.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.mobile-nav{
  display:none; flex-direction:column; background:var(--paper-2);
  border-top:1px solid var(--line); border-bottom:1px solid var(--line);
}
.mobile-nav.open{display:flex;}
.mobile-nav a{padding:17px 32px; font-size:15px; font-weight:700; color:var(--ink); border-bottom:1px solid var(--line);}
.mobile-nav a:last-child{border-bottom:none;}
.mobile-nav a.current{color:var(--coral-dark);}

/* ---------- Mobile sticky CTA bar ---------- */
.mobile-cta-bar{
  display:none; position:fixed; left:0; right:0; bottom:0; z-index:200;
  background:var(--paper-2); border-top:1px solid var(--line);
  box-shadow:0 -6px 18px rgba(43,42,74,0.1);
  padding:10px 14px calc(10px + env(safe-area-inset-bottom));
  gap:10px;
}
.mobile-cta-bar a, .mobile-cta-bar button{
  flex:1; display:flex; align-items:center; justify-content:center; gap:6px;
  height:48px; font-size:14.5px; font-weight:700; border:none; border-radius:999px;
}
.mobile-cta-call{background:var(--ink); color:#fff;}
.mobile-cta-kakao{background:#FEE500; color:#191919;}
.mobile-cta-apply{background:var(--coral); color:#fff;}

/* ---------- Hero ---------- */
.hero{position:relative; overflow:hidden; background:linear-gradient(180deg, var(--sky-light) 0%, var(--paper) 62%);}
.hero::before{
  content:''; position:absolute; top:-120px; right:-100px; width:420px; height:420px; border-radius:50%;
  background:radial-gradient(circle, rgba(255,201,60,0.35), transparent 70%); pointer-events:none;
}
.hero::after{
  content:''; position:absolute; bottom:-140px; left:-120px; width:380px; height:380px; border-radius:50%;
  background:radial-gradient(circle, rgba(58,169,224,0.28), transparent 70%); pointer-events:none;
}
.hero-grid{display:grid; grid-template-columns:1.15fr 0.85fr; gap:60px; padding:88px 0 84px; align-items:center; position:relative; z-index:1;}
.hero-eyebrow{
  display:inline-flex; align-items:center; gap:8px; background:#fff; border:1px solid var(--line);
  border-radius:999px; padding:8px 16px;
  font-size:13px; font-weight:700; color:var(--coral-dark); letter-spacing:0.02em; margin-bottom:22px;
}
.hero-eyebrow .dot{width:6px; height:6px; border-radius:50%; background:var(--coral);}
.hero h1{font-size:46px; line-height:1.35; color:var(--ink); margin-bottom:20px;}
.hero h1 em{font-style:normal; color:var(--coral);}
.hero p{font-size:16.5px; color:var(--slate); max-width:480px; margin-bottom:32px;}
.hero-actions{display:flex; gap:14px; flex-wrap:wrap;}
.btn-primary{
  background:var(--coral); color:#fff; font-weight:700; font-size:14.5px;
  padding:16px 30px; border:none; border-radius:999px; letter-spacing:0.01em;
  box-shadow:0 10px 24px rgba(255,107,74,0.28);
}
.btn-primary:hover{background:var(--coral-dark);}
.btn-ghost{
  background:#fff; color:var(--ink); font-weight:700; font-size:14.5px;
  padding:15px 28px; border:1px solid var(--line); border-radius:999px;
}
.btn-ghost:hover{border-color:var(--coral);}

.info-card{background:#fff; border:1px solid var(--line); border-radius:28px; padding:34px 30px; box-shadow:0 20px 40px rgba(43,42,74,0.08);}
.info-card-label{font-size:12.5px; color:var(--slate-2); letter-spacing:0.06em; margin-bottom:6px;}
.info-card-title{font-size:17px; color:var(--ink); font-weight:800; margin-bottom:22px;}
.info-stat{display:flex; align-items:center; gap:14px; padding:14px 0; border-top:1px solid var(--line);}
.info-stat:first-of-type{border-top:none;}
.info-stat-icon{
  flex-shrink:0; width:40px; height:40px; border-radius:12px; display:flex; align-items:center; justify-content:center; font-size:18px;
}
.info-stat:nth-child(2) .info-stat-icon{background:var(--coral-light); color:var(--coral-dark);}
.info-stat:nth-child(3) .info-stat-icon{background:var(--sky-light); color:var(--sky);}
.info-stat:nth-child(4) .info-stat-icon{background:var(--mint-light); color:var(--mint);}
.info-stat b{display:block; font-size:14.5px; color:var(--ink); font-weight:700;}
.info-stat span{font-size:12.5px; color:var(--slate);}

/* ---------- Subpage hero / breadcrumb ---------- */
.subpage-hero{background:linear-gradient(180deg, var(--sky-light) 0%, var(--paper) 100%); padding:48px 0 44px; border-bottom:1px solid var(--line);}
.breadcrumb{display:flex; align-items:center; gap:8px; font-size:12.5px; color:var(--slate); margin-bottom:18px;}
.breadcrumb a:hover{color:var(--coral-dark);}
.breadcrumb span{color:var(--slate-2);}
.subpage-hero h1{font-size:34px; line-height:1.3; color:var(--ink); margin-bottom:12px;}
.subpage-hero p{font-size:15px; color:var(--slate); max-width:640px;}

/* ---------- Section shared ---------- */
section{padding:92px 0;}
.section-head{max-width:640px; margin-bottom:52px;}
.section-head.center{max-width:640px; margin-left:auto; margin-right:auto; text-align:center;}
.eyebrow-line{display:flex; align-items:center; gap:10px; margin-bottom:16px;}
.section-head.center .eyebrow-line{justify-content:center;}
.eyebrow-line .bar{width:24px; height:3px; border-radius:2px; background:var(--coral);}
.eyebrow-line span{font-size:13px; font-weight:700; color:var(--coral-dark); letter-spacing:0.08em;}
.section-head h2{font-size:32px; line-height:1.4; color:var(--ink);}
.section-head p{font-size:15px; color:var(--slate); margin-top:14px;}

/* ---------- Target checkpoints ---------- */
#target{background:var(--paper-2); border-top:1px solid var(--line); border-bottom:1px solid var(--line);}
.checkpoint-grid{display:grid; grid-template-columns:repeat(3, 1fr); gap:16px; max-width:960px; margin:0 auto;}
.checkpoint-card{
  display:flex; gap:14px; align-items:flex-start; background:var(--paper); border:1px solid var(--line);
  border-radius:var(--radius); padding:22px 20px;
}
.checkpoint-check{
  flex-shrink:0; width:28px; height:28px; border-radius:10px; background:var(--coral);
  color:#fff; font-size:14px; font-weight:700; display:flex; align-items:center; justify-content:center;
}
.checkpoint-card p{font-size:14px; color:var(--ink); line-height:1.55; margin:0;}

/* ---------- Subjects/schedule ---------- */
.subj-tabs{display:flex; gap:10px; margin-bottom:36px; justify-content:center; flex-wrap:wrap;}
.subj-tab{
  padding:12px 24px; font-size:14.5px; font-weight:700; color:var(--slate);
  background:#fff; border:1px solid var(--line); border-radius:999px; cursor:pointer;
}
.subj-tab.active{background:var(--ink); color:#fff; border-color:var(--ink);}
.subj-tab:hover:not(.active){border-color:var(--coral); color:var(--ink);}
.subj-panel{display:none; max-width:760px; margin:0 auto;}
.subj-panel.active{display:block;}
.subj-card{background:#fff; border:1px solid var(--line); border-radius:var(--radius); padding:32px 30px;}
.subj-row{display:grid; grid-template-columns:110px 1fr; gap:18px; padding:16px 0; border-top:1px solid var(--line);}
.subj-row:first-child{border-top:none; padding-top:0;}
.subj-row-label{font-size:13px; font-weight:800; color:var(--coral-dark); letter-spacing:0.02em; padding-top:2px;}
.subj-row-value{font-size:15px; color:var(--ink); line-height:1.7;}
.subj-total{
  margin-top:18px; padding-top:18px; border-top:1px dashed var(--line);
  font-size:13.5px; color:var(--slate); text-align:right;
}
.subj-total b{color:var(--ink);}
.subj-stats{display:flex; gap:16px; max-width:760px; margin:28px auto 0; flex-wrap:wrap; justify-content:center;}
.subj-stat-chip{
  display:flex; align-items:center; gap:8px; background:#fff; border:1px solid var(--line); border-radius:999px;
  padding:10px 18px; font-size:13px; font-weight:700; color:var(--ink);
}
.subj-stat-chip span.glyph{font-size:15px;}
.schedule-note{
  max-width:760px; margin:24px auto 0; background:var(--sunny-light); border:1px solid var(--sunny);
  border-radius:16px; padding:16px 20px; font-size:13px; color:var(--ink-2); line-height:1.7;
}

/* ---------- Formats ---------- */
#formats{background:var(--paper-2); border-top:1px solid var(--line); border-bottom:1px solid var(--line);}
.format-featured{
  background:linear-gradient(135deg, var(--sky-light), var(--paper-2));
  border:2px solid var(--sky); border-radius:var(--radius);
  padding:40px 36px; display:flex; align-items:center; gap:28px; margin-bottom:20px;
}
.format-featured .glyph{
  font-size:42px; flex-shrink:0; width:88px; height:88px; border-radius:24px;
  background:#fff; display:flex; align-items:center; justify-content:center;
}
.format-featured-tag{display:inline-block; background:var(--sky); color:#fff; font-size:12px; font-weight:700; padding:5px 12px; border-radius:999px; margin-bottom:10px;}
.format-featured h4{font-size:22px; margin-bottom:8px; color:var(--ink); font-family:'Pretendard'; font-weight:800;}
.format-featured p{font-size:14.5px; color:var(--ink-2); line-height:1.7; max-width:560px;}
.format-secondary-label{font-size:13px; font-weight:700; color:var(--slate); text-align:center; margin-bottom:16px;}
.format-grid{display:grid; grid-template-columns:repeat(3, 1fr); gap:14px;}
.format-card{background:var(--paper); border:1px solid var(--line); border-radius:18px; padding:22px 20px; text-align:center;}
.format-card .glyph{font-size:22px;}
.format-card h4{font-size:14.5px; margin:12px 0 6px; color:var(--ink); font-family:'Pretendard'; font-weight:700;}
.format-card p{font-size:12.5px; color:var(--slate); line-height:1.6;}

/* ---------- Study method ---------- */
.method-grid{display:grid; grid-template-columns:repeat(3, 1fr); gap:16px;}
.method-card{border-radius:var(--radius); padding:32px 26px;}
.method-step{font-family:'JetBrains Mono', monospace; font-size:12.5px; font-weight:700; color:var(--ink-2); letter-spacing:0.06em; margin-bottom:16px;}
.method-card h3{font-size:17px; margin-bottom:12px; color:var(--ink); font-family:'Pretendard'; font-weight:800;}
.method-card p{font-size:13.5px; color:var(--ink-2); line-height:1.6;}

/* ---------- Why us ---------- */
.why-grid{display:grid; grid-template-columns:repeat(4, 1fr); gap:16px;}
.why-card{border:none; border-radius:var(--radius); padding:32px 26px;}
.why-card:nth-child(1){background:var(--lavender-light);}
.why-card:nth-child(2){background:var(--sky-light);}
.why-card:nth-child(3){background:var(--mint-light);}
.why-card:nth-child(4){background:var(--sunny-light);}
.why-icon{width:52px; height:52px; border-radius:16px; display:flex; align-items:center; justify-content:center; font-size:24px; margin-bottom:20px; background:#fff;}
.why-card h3{font-size:17px; margin-bottom:12px; color:var(--ink); font-family:'Pretendard'; font-weight:800;}
.why-card p{font-size:13.5px; color:var(--ink-2);}

/* ---------- Process ---------- */
.process{background:var(--ink); color:#fff;}
.process .section-head h2{color:#fff;}
.process .section-head p{color:#c7c3e0;}
.process-grid{display:grid; grid-template-columns:repeat(4, 1fr); gap:20px;}
.p-step{position:relative; background:rgba(255,255,255,0.06); border:1px solid rgba(255,255,255,0.12); border-radius:18px; padding:26px 22px;}
.p-num{
  width:44px; height:44px; border-radius:12px; background:var(--coral);
  display:flex; align-items:center; justify-content:center; font-family:'JetBrains Mono', monospace;
  font-size:15px; color:#fff; font-weight:700; margin-bottom:20px;
}
.p-step h3{font-size:16.5px; margin-bottom:10px; color:#fff; font-family:'Pretendard'; font-weight:700;}
.p-step p{font-size:13.5px; color:#c7c3e0;}

/* ---------- News ---------- */
.news-grid{display:grid; grid-template-columns:repeat(2, 1fr); gap:20px;}
.news-card{background:var(--paper); border:1px solid var(--line); border-radius:var(--radius); padding:28px 26px; transition:border-color .2s ease;}
.news-card:hover{border-color:var(--coral);}
.news-date{font-family:'JetBrains Mono', monospace; font-size:12px; color:var(--coral-dark); font-weight:700; margin-bottom:12px; letter-spacing:0.04em;}
.news-card h3{font-size:16.5px; color:var(--ink); margin-bottom:10px; line-height:1.4; font-family:'Pretendard'; font-weight:800;}
.news-card p{font-size:13.5px; color:var(--slate);}
.news-card a{display:inline-block; margin-top:12px; font-size:12.5px; font-weight:700; color:var(--coral-dark);}
.news-card a:hover{color:var(--ink);}

/* ---------- CTA / form ---------- */
.cta-section{background:var(--paper-2); border-top:1px solid var(--line);}
.cta-grid{display:grid; grid-template-columns:1fr 1fr; gap:64px; align-items:start;}
.cta-left h2{font-size:30px; margin-bottom:18px; color:var(--ink);}
.cta-left p{font-size:15px; color:var(--slate); margin-bottom:28px; max-width:420px;}
.cta-info-item{display:flex; gap:14px; margin-bottom:20px; align-items:flex-start;}
.cta-info-icon{
  width:40px; height:40px; border-radius:12px; background:var(--coral-light); flex-shrink:0;
  display:flex; align-items:center; justify-content:center; color:var(--coral-dark); font-size:16px;
}
.cta-info-item b{display:block; font-size:14px; color:var(--ink); margin-bottom:2px;}
.cta-info-item span{font-size:13px; color:var(--slate);}

.form-card{background:var(--ink); padding:40px; color:#fff; border-radius:28px;}
.form-row{display:grid; grid-template-columns:1fr 1fr; gap:14px; margin-bottom:14px;}
.field{margin-bottom:14px;}
.field label{display:block; font-size:12.5px; color:#c7c3e0; margin-bottom:7px; font-weight:600;}
.field input, .field select{
  width:100%; padding:12px 14px; background:rgba(255,255,255,0.08); border:1px solid rgba(255,255,255,0.16);
  color:#fff; font-size:16px; font-family:inherit; border-radius:12px;
}
.field input::placeholder{color:#8b86ab;}
.field input:focus, .field select:focus{border-color:var(--coral); outline:none;}
.form-submit{
  width:100%; padding:16px; background:var(--coral); color:#fff; border:none; border-radius:999px;
  font-weight:700; font-size:14.5px; margin-top:8px;
}
.form-submit:hover{background:var(--coral-dark);}
.form-note{font-size:11.5px; color:#a29cc0; margin-top:12px; text-align:center;}

/* ---------- Simple CTA banner (subpages) ---------- */
.mini-cta{background:var(--ink); border-radius:28px; padding:40px 36px; color:#fff; text-align:center;}
.mini-cta h2{color:#fff; font-size:26px; margin-bottom:12px;}
.mini-cta p{color:#c7c3e0; font-size:14.5px; margin-bottom:24px;}
.mini-cta-actions{display:flex; gap:12px; justify-content:center; flex-wrap:wrap;}

/* ---------- FAQ ---------- */
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  display:flex; justify-content:space-between; align-items:center;
  padding:22px 4px; cursor:pointer; font-size:15.5px; font-weight:700; color:var(--ink);
}
.faq-q .plus{font-family:'JetBrains Mono', monospace; color:var(--coral); font-size:18px; transition:transform .2s ease;}
.faq-item.open .plus{transform:rotate(45deg);}
.faq-a{max-height:0; overflow:hidden; transition:max-height .3s ease;}
.faq-item.open .faq-a{max-height:260px;}
.faq-a p{padding:0 4px 22px; font-size:14px; color:var(--slate); max-width:640px;}

/* ---------- Footer ---------- */
footer{background:var(--ink); color:#c7c3e0; padding:56px 0 28px; margin-top:40px;}
.foot-grid{display:grid; grid-template-columns:1.4fr 1fr 1fr; gap:40px; margin-bottom:40px;}
.foot-logo{font-family:'Jua', sans-serif; font-size:20px; color:#fff; margin-bottom:14px;}
.foot-grid p{font-size:13px; line-height:1.8;}
.foot-col h4{font-size:13px; color:#fff; margin-bottom:16px; font-weight:700;}
.foot-col a{display:block; font-size:13px; margin-bottom:10px; color:#c7c3e0;}
.foot-col a:hover{color:var(--sunny);}
.foot-keywords{border-top:1px solid rgba(255,255,255,0.12); padding:22px 0; font-size:12px; line-height:2;}
.foot-keywords b{color:#fff; font-weight:600; margin-right:8px;}
.foot-bottom{border-top:1px solid rgba(255,255,255,0.12); padding-top:22px; font-size:12px; display:flex; justify-content:space-between;}

/* ---------- Responsive ---------- */
@media (max-width:900px){
  body{padding-bottom:70px;}
  .nav-links{display:none;}
  .burger{display:flex;}
  .mobile-cta-bar{display:flex;}
  section{padding:60px 0;}
  .section-head{margin-bottom:32px;}
  .hero-grid{grid-template-columns:1fr; padding:36px 0 44px; gap:32px;}
  .hero h1{font-size:32px;}
  .hero p{font-size:15.5px;}
  .subpage-hero h1{font-size:28px;}
  .why-grid{grid-template-columns:repeat(2,1fr);}
  .checkpoint-grid{grid-template-columns:1fr 1fr;}
  .format-featured{flex-direction:column; text-align:center; padding:32px 24px;}
  .format-featured p{max-width:none;}
  .format-grid{grid-template-columns:1fr;}
  .method-grid{grid-template-columns:1fr;}
  .process-grid{grid-template-columns:1fr 1fr; row-gap:16px;}
  .news-grid{grid-template-columns:1fr;}
  .cta-grid{grid-template-columns:1fr; gap:32px;}
  .form-card{padding:26px 20px;}
  .form-row{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr 1fr; row-gap:28px;}
  .subj-row{grid-template-columns:1fr; gap:6px;}
  .mini-cta{padding:32px 24px;}
}

/* phones: most visitors land here, so this tier gets the final say */
@media (max-width:640px){
  .wrap{padding:0 20px;}
  .nav{height:64px;}
  section{padding:44px 0;}
  .hero-grid{padding:28px 0 36px; gap:26px;}
  .hero h1{font-size:27px;}
  .hero p{font-size:15px;}
  .hero-actions{flex-direction:column;}
  .hero-actions button{width:100%;}
  .section-head h2{font-size:25px;}
  .subpage-hero{padding:36px 0 32px;}
  .subpage-hero h1{font-size:23px;}
  .why-grid{grid-template-columns:1fr;}
  .why-card{padding:26px 22px;}
  .checkpoint-grid{grid-template-columns:1fr;}
  .checkpoint-card{padding:18px 16px;}
  .format-grid{grid-template-columns:1fr;}
  .method-grid{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .process-grid{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr;}
  .foot-bottom{flex-direction:column; gap:6px; align-items:flex-start;}
  .subj-card{padding:24px 20px;}
  .subj-tabs{gap:8px;}
  .subj-tab{padding:10px 18px; font-size:13.5px;}
  .form-card{padding:22px 18px;}
  .mini-cta-actions{flex-direction:column;}
  .mini-cta-actions a, .mini-cta-actions button{width:100%;}
}