:root{color-scheme:light;box-sizing:border-box;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}html{scroll-padding-top:env(safe-area-inset-top,0px)}body{margin:0;padding:0;font:14px -apple-system,BlinkMacSystemFont,sans-serif;background:#faf9f5;color:#141413}img{max-width:100%}[hidden]:not([hidden=until-found i]){display:none!important}


:root{
  --bg:#EEF1F7; --card:#FFFFFF; --card-2:#F6F8FC; --ink:#0F1B2D; --ink-2:#46526A; --ink-3:#7A8599;
  --line:#DCE2EC; --line-2:#E9EDF4;
  --hum:#3A47C4; --hum-deep:#232C86; --hum-soft:#E7E9FB;
  --sci:#0C7F74; --sci-deep:#08544D; --sci-soft:#DDF2EF;
  --pen:#D9412F; --pen-soft:#FDECE9; --marker:#FFE27A; --marker-ink:#0F1B2D;
  --s1:#2a78d6; --s2:#eb6834; --s3:#1baf7a; --s4:#eda100;
  --on-accent:#FFFFFF; --shadow:0 1px 2px rgba(15,27,45,.05),0 8px 24px -12px rgba(15,27,45,.12);
  --accent:var(--hum); --accent-deep:var(--hum-deep); --accent-soft:var(--hum-soft);
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#0D1117; --card:#161C26; --card-2:#1B2230; --ink:#E8EDF5; --ink-2:#B4BFCE; --ink-3:#8793A6;
    --line:#2A3342; --line-2:#222A37;
    --hum:#8E99F5; --hum-deep:#2A3280; --hum-soft:#1F2446;
    --sci:#4CC3B5; --sci-deep:#0A4C46; --sci-soft:#13302D;
    --pen:#F2857A; --pen-soft:#3A201D; --marker:#6B5A12; --marker-ink:#FFF4C7;
    --s1:#3987e5; --s2:#d95926; --s3:#199e70; --s4:#c98500;
    --on-accent:#FFFFFF; --shadow:none;
  }
}
:root[data-theme="dark"]{
  --bg:#0D1117; --card:#161C26; --card-2:#1B2230; --ink:#E8EDF5; --ink-2:#B4BFCE; --ink-3:#8793A6;
  --line:#2A3342; --line-2:#222A37;
  --hum:#8E99F5; --hum-deep:#2A3280; --hum-soft:#1F2446;
  --sci:#4CC3B5; --sci-deep:#0A4C46; --sci-soft:#13302D;
  --pen:#F2857A; --pen-soft:#3A201D; --marker:#6B5A12; --marker-ink:#FFF4C7;
  --s1:#3987e5; --s2:#d95926; --s3:#199e70; --s4:#c98500;
  --on-accent:#FFFFFF; --shadow:none;
}
body.is-sci{--accent:var(--sci);--accent-deep:var(--sci-deep);--accent-soft:var(--sci-soft)}
*{box-sizing:border-box}
body{background:var(--bg);color:var(--ink);font-family:"Noto Sans KR","Apple SD Gothic Neo","Malgun Gothic",sans-serif;font-size:16px;line-height:1.72;padding-inline:16px;padding-block:0 72px;word-break:keep-all;-webkit-font-smoothing:antialiased}
.wrap{max-width:820px;margin:0 auto}
h1,h2,h3{margin:0;text-wrap:balance;line-height:1.3}
p{margin:0}
.num{font-family:"JetBrains Mono",ui-monospace,monospace;font-variant-numeric:tabular-nums;letter-spacing:-.02em}

.sample{display:flex;flex-wrap:wrap;justify-content:space-between;gap:4px 12px;font-size:12.5px;color:var(--ink-3);padding-block:12px}
.sample b{color:var(--pen);font-weight:700}

/* ---------- HERO ---------- */
.hero{position:relative;overflow:hidden;border-radius:24px;background:var(--accent-deep);color:var(--on-accent);padding:30px 26px 26px;isolation:isolate}
.hero::before{content:"";position:absolute;inset:0;z-index:-1;opacity:.16;
  background-image:linear-gradient(rgba(255,255,255,.9) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.9) 1px,transparent 1px);
  background-size:26px 26px;mask-image:linear-gradient(115deg,transparent 30%,#000 95%);-webkit-mask-image:linear-gradient(115deg,transparent 30%,#000 95%)}
body.is-sci .hero::before{background-size:13px 13px;opacity:.12}
.hero .glyph{position:absolute;right:-10px;top:-24px;z-index:-1;width:260px;height:260px;opacity:.22}
.crumb{font-size:13px;opacity:.78;letter-spacing:.02em}
.hero h1{font-weight:900;font-size:clamp(30px,6vw,46px);letter-spacing:-.03em;margin-top:8px}
.hero h1 em{font-style:normal;display:inline-block;background:var(--marker);color:var(--marker-ink);padding:0 .18em;border-radius:6px;transform:rotate(-1deg)}
.lede{margin-top:12px;max-width:56ch;font-size:16px;opacity:.9}
.dday{position:absolute;right:22px;top:24px;text-align:center;background:rgba(255,255,255,.14);backdrop-filter:blur(4px);border:1px solid rgba(255,255,255,.28);border-radius:14px;padding:8px 14px;line-height:1.2}
.dday small{display:block;font-size:11.5px;opacity:.85}
.dday b{font-family:"JetBrains Mono",monospace;font-size:24px}
@media (max-width:560px){.dday{position:static;display:inline-block;margin-top:16px}}
.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:22px}
.kpi{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);border-radius:14px;padding:12px 14px}
.kpi dt{font-size:12px;opacity:.8}
.kpi dd{margin:2px 0 0;font-weight:700;font-size:19px;line-height:1.3}
.kpi dd small{display:block;font-weight:400;font-size:12px;opacity:.78}
@media (max-width:640px){.kpis{grid-template-columns:repeat(2,1fr)}}

/* ---------- TABS ---------- */
.tabbar{position:sticky;top:env(safe-area-inset-top,0px);z-index:10;padding-block:12px;background:linear-gradient(var(--bg) 75%,transparent)}
.tabs{display:grid;grid-template-columns:1fr 1fr;gap:4px;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:4px;box-shadow:var(--shadow)}.tabs button,.tabs a{font:inherit;font-weight:700;font-size:15px;border:0;border-radius:12px;padding:10px 8px;background:transparent;color:var(--ink-2);cursor:pointer;display:flex;align-items:center;justify-content:center;gap:8px}.tabs button .dot,.tabs a .dot{width:8px;height:8px;border-radius:50%}
#tab-hum .dot{background:var(--hum)} #tab-sci .dot{background:var(--sci)}
#tab-hum[aria-selected="true"]{background:var(--hum);color:#fff}
#tab-sci[aria-selected="true"]{background:var(--sci);color:#fff}.tabs button[aria-selected="true"] .dot,.tabs a[aria-selected="true"] .dot{background:#fff}.tabs button:focus-visible,.tabs a:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* ---------- SECTIONS ---------- */
.sec{margin-top:20px;background:var(--card);border:1px solid var(--line);border-radius:20px;padding:24px 22px;box-shadow:var(--shadow)}
.eyebrow{font-size:12.5px;font-weight:700;color:var(--accent);letter-spacing:.06em}
.sec h2{font-size:22px;font-weight:900;letter-spacing:-.02em;margin-top:4px;margin-bottom:16px}
.note{font-size:13.5px;color:var(--ink-3);margin-top:12px}
.hl{background:linear-gradient(transparent 58%,var(--marker) 58%);color:inherit;padding:0 2px}

/* timeline */
.timeline{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(5,1fr);gap:0;position:relative}
.timeline::before{content:"";position:absolute;left:10%;right:10%;top:15px;height:2px;background:var(--line)}
.timeline li{position:relative;text-align:center;padding:0 4px}
.timeline .pin{width:32px;height:32px;margin:0 auto;border-radius:50%;background:var(--card);border:2px solid var(--line);display:grid;place-items:center;position:relative;z-index:1}
.timeline .pin i{width:10px;height:10px;border-radius:50%;background:var(--line)}
.timeline li.key .pin{border-color:var(--accent);background:var(--accent)}
.timeline li.key .pin i{background:#fff}
.timeline li.done .pin i{background:var(--ink-3)}
.timeline b{display:block;font-family:"JetBrains Mono",monospace;font-size:14px;margin-top:8px}
.timeline span{display:block;font-size:12.5px;color:var(--ink-2);line-height:1.4}
@media (max-width:560px){
  .timeline{grid-template-columns:1fr;gap:10px}
  .timeline::before{left:15px;right:auto;top:10px;bottom:10px;width:2px;height:auto}
  .timeline li{display:grid;grid-template-columns:32px 1fr;gap:12px;text-align:left;align-items:center}
  .timeline b{margin-top:0}
}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.chip{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;background:var(--accent-soft);color:var(--ink);border-radius:999px;padding:5px 12px}
.chip b{color:var(--accent);font-weight:700}
.scope{margin-top:14px;background:var(--card-2);border-radius:12px;padding:12px 14px;font-size:14px;color:var(--ink-2)}
.scope strong{color:var(--ink)}

/* results */
.results{display:grid;grid-template-columns:1.1fr 1fr;gap:18px;align-items:center}
@media (max-width:640px){.results{grid-template-columns:1fr}}
.big{display:flex;gap:18px;flex-wrap:wrap}
.big div{min-width:120px}
.big small{display:block;font-size:12.5px;color:var(--ink-3)}
.big b{font-family:"JetBrains Mono",monospace;font-size:38px;font-weight:700;letter-spacing:-.04em;line-height:1.1}
.big .muted b{color:var(--ink-3)}
.cmp{display:grid;gap:10px}
.cmp-row{display:grid;grid-template-columns:78px 1fr;gap:10px;align-items:center;font-size:13px;color:var(--ink-2)}
.cmp-track{height:22px;border-radius:0 6px 6px 0;background:var(--card-2);position:relative}
.cmp-fill{height:100%;border-radius:0 6px 6px 0;display:flex;align-items:center;justify-content:flex-end;padding-right:8px;font-family:"JetBrains Mono",monospace;font-size:12px;font-weight:700;color:#fff}
.tbl{overflow-x:auto;margin-top:6px;border:1px solid var(--line);border-radius:14px}
table{border-collapse:collapse;width:100%;min-width:520px;font-size:14.5px}
th,td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--line-2);vertical-align:top}
th{font-size:12.5px;color:var(--ink-3);font-weight:500;background:var(--card-2)}
tr:last-child td{border-bottom:0}
.r{text-align:right}
tr.em td{background:var(--accent-soft)}

/* flow (문항 구조) */
.flow{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media (max-width:640px){.flow{grid-template-columns:1fr}}
.qcard{border:1px solid var(--line);border-radius:16px;padding:16px;background:var(--card-2)}
.qcard header{display:flex;justify-content:space-between;align-items:baseline;gap:8px}
.qtag{font-weight:900;font-size:15px}
.qpts{font-family:"JetBrains Mono",monospace;font-weight:700;color:var(--accent)}
.qsub{font-size:13px;color:var(--ink-3)}
.steps{display:flex;flex-wrap:wrap;align-items:center;gap:6px;margin-top:12px}
.step{font-size:13.5px;font-weight:700;background:var(--card);border:1px solid var(--line);border-radius:10px;padding:6px 10px}
.step.hot{border-color:var(--accent);color:var(--accent)}
.arrow{color:var(--ink-3);font-size:13px}

/* topics */
.years{display:grid;gap:12px}
.year{display:grid;grid-template-columns:70px 1fr;gap:14px;align-items:start}
.year > b{font-family:"JetBrains Mono",monospace;font-size:22px;font-weight:700;color:var(--accent);line-height:1.2}
.year .rows{display:grid;gap:8px}
.year .lab{font-size:12px;color:var(--ink-3);margin-bottom:4px}
.tags{display:flex;flex-wrap:wrap;gap:6px}
.tag{font-size:13px;border:1px solid var(--line);border-radius:8px;padding:2px 9px;background:var(--card)}
.tag.main{background:var(--accent-soft);border-color:transparent}
.flowline{margin-top:16px;display:flex;flex-wrap:wrap;gap:6px;align-items:center;font-size:14px}
.flowline span.pill{background:var(--ink);color:var(--bg);border-radius:999px;padding:3px 12px;font-weight:700;font-size:13px}

/* exam sheet */
.exam{border:1px solid var(--line);border-radius:18px;overflow:hidden}
.exam + .exam{margin-top:16px}
.exam-head{display:flex;flex-wrap:wrap;justify-content:space-between;gap:6px 12px;align-items:center;padding:12px 16px;background:var(--accent-soft)}
.exam-head b{font-weight:900}
.exam-head span{font-size:13px;color:var(--ink-2)}
.exam-body{padding:16px;background:var(--card)}
.paper{position:relative;font-family:"Gowun Batang","AppleMyungjo",serif;font-size:16.5px;line-height:1.85;padding:14px 16px 14px 20px;border-radius:10px;
  background-color:var(--card-2);background-image:linear-gradient(90deg,transparent 0,transparent 100%),repeating-linear-gradient(transparent 0 29px,var(--line-2) 29px 30px)}
.paper::before{content:"";position:absolute;left:8px;top:12px;bottom:12px;width:2px;background:var(--pen);opacity:.5;border-radius:2px}
.meta{display:grid;grid-template-columns:auto 1fr;gap:6px 14px;margin-top:14px;font-size:14.5px}
.meta dt{color:var(--ink-3);font-size:13px;padding-top:2px}
.meta dd{margin:0;color:var(--ink-2)}
@media (max-width:520px){.meta{grid-template-columns:1fr;gap:2px}.meta dt{margin-top:8px}}
.stack{margin-top:16px}
.stack-cap{font-size:12.5px;color:var(--ink-3);margin-bottom:6px}
.stack-bar{display:flex;gap:2px;height:30px;border-radius:8px;overflow:hidden}
.stack-bar div{display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;color:#fff;white-space:nowrap;overflow:hidden;min-width:0}
.stack-legend{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:4px 16px;margin-top:8px;font-size:13px;color:var(--ink-2)}
.stack-legend i{display:inline-block;width:10px;height:10px;border-radius:3px;margin-right:6px}
.redpen{margin-top:14px;border-radius:14px;background:var(--pen-soft);padding:14px 16px;position:relative}
.redpen h3{font-size:14.5px;font-weight:900;color:var(--pen);display:flex;gap:6px;align-items:center;margin-bottom:6px}
.redpen ul{margin:0;padding-left:18px;font-size:14.5px}
.redpen li+li{margin-top:4px}

/* frequency */
.subjbar{display:flex;gap:2px;height:40px;border-radius:10px;overflow:hidden;margin-top:4px}
.subjbar div{display:flex;flex-direction:column;justify-content:center;padding-left:10px;color:#fff;font-size:12px;line-height:1.2;min-width:0;overflow:hidden;white-space:nowrap}
.subjbar b{font-family:"JetBrains Mono",monospace;font-size:15px}
.freq{margin-top:20px;display:grid;gap:4px}
.frow{display:grid;grid-template-columns:minmax(120px,32%) 1fr;align-items:center;gap:12px;padding:3px 0;border-radius:8px;outline:none}
.frow .lab{font-size:14px;line-height:1.25}
.frow .lab small{display:inline-block;margin-left:6px;font-size:11.5px;color:var(--ink-3)}
.track{height:20px;background-image:linear-gradient(90deg,var(--line-2) 1px,transparent 1px);background-size:calc(100%/6) 100%;position:relative}
.fill{height:100%;border-radius:0 6px 6px 0;display:flex;align-items:center;justify-content:flex-end;padding-right:7px;min-width:24px;font-family:"JetBrains Mono",monospace;font-size:12px;font-weight:700;color:#fff}
.frow:hover .fill,.frow:focus .fill{filter:brightness(1.1)}
.frow:focus-visible{box-shadow:0 0 0 2px var(--accent)}
.axis{display:grid;grid-template-columns:minmax(120px,32%) 1fr;gap:12px;font-size:11.5px;color:var(--ink-3)}
.axis div{display:flex;justify-content:space-between}
.legend{display:flex;flex-wrap:wrap;gap:6px 14px;font-size:12.5px;color:var(--ink-2);margin-top:12px}
.legend i{display:inline-block;width:10px;height:10px;border-radius:3px;margin-right:5px;vertical-align:-1px}
.once{margin-top:14px;font-size:13px;color:var(--ink-3)}

/* tips */
.tips{display:grid;grid-template-columns:1fr 1fr;gap:12px;list-style:none;margin:0;padding:0}
@media (max-width:640px){.tips{grid-template-columns:1fr}}
.tips li{background:var(--card-2);border-radius:14px;padding:14px 16px;font-size:14.5px;color:var(--ink-2)}
.tips li b{display:block;color:var(--ink);font-size:15.5px;margin-bottom:4px}

/* cta */
.cta{margin-top:20px;border-radius:22px;padding:24px;background:var(--accent);color:#fff;display:grid;grid-template-columns:1fr auto;gap:14px 20px;align-items:center;position:relative;overflow:hidden;isolation:isolate}
.cta::after{content:"";position:absolute;right:-40px;bottom:-60px;width:220px;height:220px;border-radius:50%;background:rgba(255,255,255,.12);z-index:-1}
.cta h3{font-size:20px;font-weight:900}
.cta p{font-size:14.5px;opacity:.9;margin-top:4px}
.cta a{background:#fff;color:var(--accent-deep);font-weight:900;text-decoration:none;border-radius:12px;padding:12px 18px;white-space:nowrap}
.cta a:focus-visible{outline:3px solid var(--marker);outline-offset:2px}
@media (max-width:560px){.cta{grid-template-columns:1fr}}

details.seo{margin-top:20px;border:1px dashed var(--line);border-radius:14px;padding:12px 16px;font-size:13.5px;color:var(--ink-2);background:var(--card)}
details.seo summary{cursor:pointer;font-weight:700;color:var(--ink)}
details.seo dl{display:grid;grid-template-columns:96px 1fr;gap:6px 12px;margin:10px 0 0}
details.seo dd{margin:0}
details.seo code{font-family:"JetBrains Mono",monospace;font-size:12px;background:var(--card-2);padding:1px 6px;border-radius:5px;word-break:break-all}
.sources{margin-top:22px;font-size:12.5px;color:var(--ink-3)}
.sources ol{margin:6px 0 0;padding-left:18px}
@media (prefers-reduced-motion:no-preference){.fill,.tabs button,.tabs a{transition:filter .15s,background-color .2s,color .2s}}

/* ---------- index & extras ---------- */
.herotop{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;flex-wrap:wrap}
.herotop .dday{position:static;margin:0}

.topnav{display:flex;align-items:center;justify-content:space-between;gap:10px;padding-block:14px}
.topnav a.back{font-size:14px;font-weight:700;color:var(--ink-2);text-decoration:none;display:inline-flex;gap:6px;align-items:center;border:1px solid var(--line);background:var(--card);border-radius:999px;padding:6px 14px}
.topnav a.back:hover{color:var(--ink)}
.topnav .brand{font-weight:900;font-size:15px;color:var(--ink);text-decoration:none;letter-spacing:-.02em}
.topnav .brand span{color:var(--hum)}
.idx-hero{border-radius:24px;background:var(--ink);color:var(--bg);padding:32px 26px 26px;position:relative;overflow:hidden;isolation:isolate}
.idx-hero::before{content:"";position:absolute;inset:0;z-index:-1;opacity:.1;background-image:linear-gradient(currentColor 1px,transparent 1px),linear-gradient(90deg,currentColor 1px,transparent 1px);background-size:24px 24px;mask-image:linear-gradient(120deg,transparent 35%,#000);-webkit-mask-image:linear-gradient(120deg,transparent 35%,#000)}
.idx-hero h1{font-size:clamp(28px,5.5vw,42px);font-weight:900;letter-spacing:-.03em}
.idx-hero h1 em{font-style:normal;background:var(--marker);color:var(--marker-ink);padding:0 .15em;border-radius:6px}
.idx-hero p{margin-top:10px;opacity:.85;max-width:60ch}
.idx-stats{display:flex;flex-wrap:wrap;gap:22px;margin-top:18px}
.idx-stats b{display:block;font-family:"JetBrains Mono",monospace;font-size:28px}
.idx-stats small{font-size:12.5px;opacity:.75}
.filters{position:sticky;top:env(safe-area-inset-top,0px);z-index:10;padding-block:12px;background:linear-gradient(var(--bg) 80%,transparent);display:grid;gap:10px}
.search{display:flex;align-items:center;gap:8px;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:0 14px;box-shadow:var(--shadow)}
.search input{flex:1;border:0;background:transparent;font:inherit;color:var(--ink);padding:12px 0;outline:none;min-width:0}
.search:focus-within{border-color:var(--hum)}
.fchips{display:flex;flex-wrap:wrap;gap:6px}
.fchips button{font:inherit;font-size:13.5px;font-weight:700;border:1px solid var(--line);background:var(--card);color:var(--ink-2);border-radius:999px;padding:6px 12px;cursor:pointer}
.fchips button[aria-pressed="true"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.fchips button:focus-visible{outline:2px solid var(--hum);outline-offset:2px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px;margin-top:6px}
.ucard{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:16px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:10px}
.ucard h3{font-size:19px;font-weight:900;letter-spacing:-.02em;display:flex;justify-content:space-between;align-items:baseline;gap:8px}
.ucard h3 small{font-size:12px;font-weight:500;color:var(--ink-3)}
.ucard .facts2{font-size:13px;color:var(--ink-2);display:grid;gap:2px}
.ucard .facts2 span b{color:var(--ink);font-weight:700}
.tlinks{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto}
.tlink{font-size:13.5px;font-weight:700;text-decoration:none;border-radius:10px;padding:7px 11px;display:inline-flex;gap:6px;align-items:center}
.tlink.hum{background:var(--hum-soft);color:var(--hum)}
.tlink.sci{background:var(--sci-soft);color:var(--sci)}
.tlink:hover{filter:brightness(.97)}
.tlink:focus-visible{outline:2px solid currentColor;outline-offset:2px}
.empty{padding:40px 0;text-align:center;color:var(--ink-3)}
.datanote{margin-top:14px;border-radius:14px;padding:12px 16px;background:var(--pen-soft);font-size:14px;color:var(--ink)}
.datanote b{color:var(--pen)}
.others{margin-top:20px}
.others .tlinks{margin-top:8px}
.tabs.n1{grid-template-columns:1fr}
.tabs.n3{grid-template-columns:repeat(3,1fr)}.tabs button.sci[aria-selected="true"],.tabs a.sci[aria-selected="true"]{background:var(--sci);color:#fff}.tabs button.hum[aria-selected="true"],.tabs a.hum[aria-selected="true"]{background:var(--hum);color:#fff}.tabs button.hum .dot,.tabs a.hum .dot{background:var(--hum)}.tabs button.sci .dot,.tabs a.sci .dot{background:var(--sci)}
.tbl td small{color:var(--ink-3)}

.tabs a{font:inherit;color:inherit;text-decoration:none;cursor:pointer}