@font-face{font-family:"Partial Sans KR";src:url("/fonts/PartialSansKR-Regular.woff2") format("woff2");font-display:swap;unicode-range:U+0000-00B6,U+00B8-FFFF}
:root{
  --blue:#3D5AFE;--blue-soft:#E8EDFF;--bg-soft:#F4F6FF;--ink:#16183A;--muted:#5B6080;--faint:#8C91AB;--line:#E3E7F5;
  --display:"Partial Sans KR","Pretendard Variable",sans-serif;
  --body:"Pretendard Variable",Pretendard,-apple-system,BlinkMacSystemFont,system-ui,sans-serif;
  color-scheme:light;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:#fff;color:var(--ink);font-family:var(--body);font-size:17px;line-height:1.75;letter-spacing:-.01em;word-break:keep-all;-webkit-font-smoothing:antialiased}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1040px;margin:0 auto;padding:0 24px}

/* header */
.top{position:sticky;top:0;z-index:10;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.top-in{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}
.logo{font-family:var(--display);font-size:20px;color:var(--blue);white-space:nowrap}
.logo:hover{text-decoration:none}
nav{display:flex;align-items:center;gap:22px;font-size:15px;font-weight:600}
nav a{color:var(--ink)}
nav a.lang{border:1.5px solid var(--blue);color:var(--blue);padding:4px 12px;border-radius:999px;font-size:13px}
nav a.lang:hover{background:var(--blue);color:#fff;text-decoration:none}

/* hero */
.hero{background:var(--bg-soft);padding:72px 0 76px;border-bottom:1px solid var(--line)}
.pill{display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.04em;color:var(--blue);background:var(--blue-soft);padding:5px 12px;border-radius:999px}
.pill.solid{background:var(--blue);color:#fff;padding:7px 16px;font-size:13px}
.display{font-family:var(--display);font-weight:400;font-size:clamp(34px,6vw,60px);line-height:1.18;letter-spacing:-.02em;margin:26px 0 22px}
.display span{color:var(--blue)}
.sub{max-width:560px;color:var(--muted);font-size:18px}
.btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.btn{display:inline-block;background:var(--blue);color:#fff;font-weight:700;font-size:15px;padding:12px 22px;border-radius:12px}
.btn:hover{text-decoration:none;filter:brightness(1.08)}
.btn.ghost{background:#fff;color:var(--blue);border:1.5px solid var(--blue)}

/* sections */
.block{padding:56px 0 8px}
.sec{font-size:22px;font-weight:800;margin-bottom:20px;display:flex;align-items:center;gap:10px}
.sec::before{content:"";width:6px;height:22px;border-radius:3px;background:var(--blue)}
.subjects{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.subj{border:1px solid var(--line);border-radius:14px;padding:18px 18px 16px;display:flex;flex-direction:column;gap:4px}
.subj strong{font-size:16px}
.subj span{font-size:13.5px;color:var(--faint)}
.cards{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.card{display:flex;flex-direction:column;gap:10px;border:1px solid var(--line);border-radius:16px;padding:24px;color:var(--ink);transition:border-color .15s,transform .15s}
.card:hover{text-decoration:none;border-color:var(--blue);transform:translateY(-2px)}
.card h3{font-size:19px;line-height:1.45;font-weight:800}
.card p{font-size:15px;color:var(--muted);line-height:1.6}
.card .pill{align-self:flex-start}
.date{font-size:13px;color:var(--faint);margin-top:auto}
.about-card{padding-bottom:72px}
.about-card p{color:var(--muted);max-width:640px;margin-bottom:10px}
.about-card a{font-weight:700}

/* post */
.post{max-width:760px;padding-top:40px;padding-bottom:80px}
.back{display:block;width:fit-content;font-size:14px;font-weight:600;color:var(--faint);margin-bottom:22px}
.post h1{font-size:clamp(26px,4vw,34px);line-height:1.35;font-weight:800;letter-spacing:-.02em;margin:14px 0 12px}
.meta{font-size:14px;color:var(--faint);padding-bottom:26px;border-bottom:1px solid var(--line);margin-bottom:32px;display:flex;flex-wrap:wrap;gap:6px 14px;align-items:center}
.alt-lang{font-weight:700;border:1px solid var(--line);padding:2px 10px;border-radius:999px;font-size:13px}
.prose p{margin:0 0 18px}
.prose h2{font-size:22px;font-weight:800;margin:44px 0 16px;padding-left:14px;border-left:5px solid var(--blue);line-height:1.35}
.prose ul{margin:0 0 20px 0;list-style:none}
.prose li{position:relative;padding-left:18px;margin-bottom:8px}
.prose li::before{content:"";position:absolute;left:2px;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--blue)}
.prose strong{color:var(--ink);font-weight:800;background:linear-gradient(transparent 62%,var(--blue-soft) 62%)}
.callout{background:var(--bg-soft);border-left:4px solid var(--blue);border-radius:0 12px 12px 0;padding:16px 20px;margin:24px 0;font-size:16px}
.callout p{margin:0}
.table-wrap{overflow-x:auto;margin:8px 0 26px;-webkit-overflow-scrolling:touch}
table{width:100%;border-collapse:collapse;font-size:15px;min-width:480px}
th{font-weight:700;text-align:left;padding:10px 12px;border-bottom:2px solid var(--blue);white-space:nowrap}
td{padding:12px;border-bottom:1px solid var(--line)}
td:first-child{font-weight:600}
.note{margin-top:48px;background:var(--bg-soft);border-radius:14px;padding:18px 22px;font-size:15px;color:var(--muted)}

/* footer */
.foot{border-top:1px solid var(--line);padding:36px 0 44px;font-size:14px;color:var(--muted)}
.foot-logo{font-family:var(--display);color:var(--blue);font-size:17px;margin-bottom:8px}
.copy{color:var(--faint);margin-top:6px}

@media (max-width:820px){
  .subjects{grid-template-columns:repeat(2,1fr)}
  .cards{grid-template-columns:1fr}
}
@media (max-width:560px){
  .wrap{padding:0 16px}
  body{font-size:16px}
  .top-in{height:58px}
  .logo{font-size:17px}
  nav{gap:14px;font-size:14px}
  .hero{padding:48px 0 52px}
  .sub{font-size:16px}
  .subjects{grid-template-columns:1fr 1fr;gap:10px}
  .subj{padding:14px}
  .card{padding:20px}
}

/* subject cards: one per exam */
.subj strong{font-size:20px;font-weight:800;color:var(--blue);margin-bottom:8px}
.chips{list-style:none;display:flex;flex-wrap:wrap;gap:6px}
.chips li{font-size:13.5px;font-weight:600;color:var(--ink);background:var(--bg-soft);border-radius:999px;padding:4px 11px;line-height:1.4}
@media (max-width:560px){.subjects{grid-template-columns:1fr}}
@media (max-width:560px){.logo{font-size:15px}nav{gap:12px}nav a:first-child{display:none}}