:root{
  --ink:#03111B;          
  --abyss:#06202F;        
  --deep:#033149;         
  --teal:#00B7CC;         
  --teal-2:#11AEBF;       
  --gold:#CA9D5B;         
  --gold-hi:#E8C48C;
  --silver:#DCE3E7;
  --fg:#E6E8EC;           
  --fg-2:#B1B5C3;         
  --muted:#7F889B;        
  --line:rgba(177,181,195,.13);
  --line-2:rgba(177,181,195,.24);
  --glass:rgba(9,40,58,.55);
  --glass-2:rgba(12,52,74,.72);
  --ok:#3FC79A; --warn:#E3A33B; --bad:#E5636B;
  --paper:#EEF1F4;        
  --f-display:"Outfit","Noto Sans KR","Apple SD Gothic Neo","Malgun Gothic",system-ui,sans-serif;
  --f-body:"Noto Sans KR","Apple SD Gothic Neo","Malgun Gothic",system-ui,sans-serif;
  --f-num:"Barlow Semi Condensed","DIN Alternate","Outfit",system-ui,sans-serif;
  --r-s:10px; --r-m:16px; --r-l:24px;
  --ease:cubic-bezier(.2,.8,.2,1);
  --gut:clamp(16px,4vw,48px);
  --max:1280px;
  color-scheme:dark;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{background:var(--ink);color:var(--fg);font:400 15px/1.65 var(--f-body);margin:0;min-height:100vh;overflow-x:hidden;-webkit-font-smoothing:antialiased}
body.lock{overflow:hidden}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;padding:0}
input,select,textarea{font:inherit;color:var(--fg)}
img{max-width:100%;display:block}
h1,h2,h3,h4{font-family:var(--f-display);margin:0;text-wrap:balance;letter-spacing:-.01em;line-height:1.15}
p{margin:0}
:focus-visible{outline:2px solid var(--teal);outline-offset:3px;border-radius:6px}
::selection{background:rgba(0,183,204,.35)}
.num{font-family:var(--f-num);font-variant-numeric:tabular-nums}
.eyebrow{font:600 12px/1 var(--f-num);letter-spacing:.22em;text-transform:uppercase;color:var(--gold)}
.muted{color:var(--muted)}
.ambient{position:fixed;inset:0;z-index:-1;pointer-events:none;background:
  radial-gradient(900px 600px at 85% -10%,rgba(17,174,191,.16),transparent 60%),
  radial-gradient(800px 500px at -10% 30%,rgba(3,49,73,.9),transparent 70%),
  radial-gradient(600px 500px at 50% 110%,rgba(202,157,91,.08),transparent 70%),var(--ink)}
.ambient::after{content:"";position:absolute;inset:0;opacity:.35;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:64px 64px;mask-image:radial-gradient(ellipse at 50% 0%,#000 10%,transparent 70%)}
.brand{display:flex;align-items:center;gap:10px}
.brand img{height:30px;width:auto}
.wrap{max-width:var(--max);margin-inline:auto}
.sec-h{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:28px}
.sec-h h2{font-size:clamp(26px,3.4vw,40px);font-weight:600}
.btn{position:relative;display:inline-flex;align-items:center;justify-content:center;gap:10px;height:48px;padding:0 22px;border-radius:999px;font-weight:500;font-size:15px;transition:transform .25s var(--ease),box-shadow .25s,background .25s,border-color .25s;white-space:nowrap}
.btn-pri{background:linear-gradient(135deg,var(--teal) 0%,var(--teal-2) 45%,#0A6C80 100%);color:#fff;box-shadow:0 10px 30px -10px rgba(0,183,204,.7),inset 0 1px 0 rgba(255,255,255,.3)}
.btn-pri:hover{transform:translateY(-2px);box-shadow:0 16px 40px -12px rgba(0,183,204,.9),inset 0 1px 0 rgba(255,255,255,.3)}
.btn-ghost{border:1px solid var(--line-2);background:rgba(6,32,47,.45);color:var(--fg)}
.btn-ghost:hover{border-color:var(--gold);transform:translateY(-2px)}
.btn-sm{height:36px;padding:0 14px;font-size:13px}
.grid{display:grid;gap:18px;grid-template-columns:repeat(auto-fill,minmax(200px,1fr))}
.icon-btn{width:32px;height:32px;border-radius:9px;display:inline-grid;place-items:center;color:var(--fg-2);border:1px solid var(--line);transition:all .2s;flex:none}
.icon-btn:hover{color:#fff;border-color:var(--teal);background:rgba(0,183,204,.15)}
.doc-card{position:relative;display:grid;grid-template-columns:minmax(150px,200px) minmax(0,1fr);border-radius:var(--r-l);overflow:hidden;border:1px solid var(--line);background:rgba(6,32,47,.6);transition:transform .35s var(--ease),border-color .3s;min-width:0}
.doc-card:hover{transform:translateY(-4px);border-color:rgba(202,157,91,.5)}
.doc-cover{position:relative;aspect-ratio:3/4;width:100%;height:100%;min-height:240px;display:flex;flex-direction:column;justify-content:space-between;padding:22px;background:linear-gradient(155deg,#0B4A63 0%,var(--deep) 45%,#021521 100%);overflow:hidden;text-align:left;cursor:pointer}
.doc-cover .k{font:600 11px var(--f-num);letter-spacing:.24em;color:var(--gold);text-transform:uppercase;position:relative;z-index:1}
.doc-cover.has-img{padding:0;justify-content:flex-start;background:#04121C}
.doc-cover .bgi{position:absolute;inset:-12%;width:124%;height:124%;object-fit:cover;filter:blur(22px) brightness(.55) saturate(1.2)}
.doc-cover .cvi{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;transition:transform .5s cubic-bezier(.2,.8,.2,1)}
.doc-card:hover .doc-cover .cvi{transform:scale(1.03)}
.doc-cover.has-img .k{position:absolute;left:12px;top:12px;padding:5px 9px;border-radius:999px;background:rgba(3,17,27,.72);backdrop-filter:blur(6px);font-size:10px;letter-spacing:.18em}
.doc-card .bd{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.doc-card .bd p{font-size:13px;color:var(--fg-2)}
.doc-card .acts{display:flex;gap:8px;flex-wrap:wrap;margin-top:auto}
.toolbar{position:sticky;top:calc(env(safe-area-inset-top,0px) + 64px);z-index:15;display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:32px;margin-bottom:24px;padding:10px;border-radius:16px;background:rgba(3,17,27,.78);border:1px solid var(--line);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
.toolbar .sp{flex:1}
.tabs{display:flex;gap:4px;overflow-x:auto;scrollbar-width:none;max-width:100%}
.tabs::-webkit-scrollbar{display:none}
.tabs button{flex:none;display:inline-flex;align-items:center;gap:8px;height:38px;padding:0 14px;border-radius:10px;font-size:14px;color:var(--fg-2);transition:background .2s,color .2s}
.tabs button b{font:600 12px var(--f-num);color:var(--muted)}
.tabs button.on{background:linear-gradient(135deg,rgba(0,183,204,.22),rgba(3,49,73,.6));color:#fff;box-shadow:inset 0 0 0 1px rgba(0,183,204,.45)}
.tabs button.on b{color:var(--gold-hi)}
.search-in{display:flex;align-items:center;gap:8px;height:38px;padding:0 12px;border-radius:10px;border:1px solid var(--line);background:rgba(6,32,47,.6);min-width:0;flex:0 1 220px}
.search-in input{background:none;border:0;outline:0;width:100%;min-width:0;font-size:13.5px}
.ov-top{display:flex;align-items:center;gap:12px;padding:12px var(--gut);border-bottom:1px solid var(--line);flex:none}
.ov-top .tt{flex:1;min-width:0}
.ov-top .tt b{display:block;font-size:15px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ov-top .tt span{font:500 12px var(--f-num);color:var(--muted)}
.ov-body{position:relative;flex:1;min-height:0;display:flex}
.pdfv canvas{max-width:100%;height:auto!important;border-radius:4px;box-shadow:0 20px 50px -20px rgba(0,0,0,.8)}
.ov-top .icon-btn.gold{display:inline-grid}
.ov.pdf .ov-body{display:block}
.pdf-load{margin:auto;display:grid;justify-items:center;gap:12px;color:var(--muted);font-size:13px}
.pdf-load .ld{width:36px;height:36px;border-radius:50%;border:2px solid var(--line-2);border-top-color:var(--teal);animation:spin 1s linear infinite}
.pdf-ctl{display:flex;align-items:center;gap:4px;padding:3px;border-radius:10px;border:1px solid var(--line)}
.pdf-ctl span{min-width:44px;text-align:center;font-size:12px}
.grid.g-deck{grid-template-columns:repeat(auto-fill,minmax(min(100%,420px),1fr))}
.doc-card.deck{grid-template-columns:minmax(0,1fr);grid-template-rows:auto 1fr}
.doc-card.deck .doc-cover{aspect-ratio:16/9;min-height:0;height:auto;padding:22px 24px}
.doc-card.deck .doc-cover.has-img{padding:0}
.doc-card.deck .doc-cover::before{width:120%;height:90%;left:-10%;top:42%}
.doc-card.deck .doc-cover::after{width:110%;height:80%;left:0;top:55%}
.doc-card.deck .doc-cover h4{font-size:clamp(20px,2vw,28px);max-width:80%}
.doc-card .bd .ttl{font-size:16px;font-weight:600;line-height:1.35}
.doc-card.deck .bd p{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
@keyframes spin{to{transform:rotate(360deg)}}
/* page */
.top{position:sticky;top:0;z-index:20;background:rgba(3,17,27,.72);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line);padding-inline:var(--gut)}
.top-in{display:flex;align-items:center;gap:12px;height:60px}
.top .lib{font-size:12px;color:var(--muted);padding-left:12px;border-left:1px solid var(--line-2)}
.page{padding:40px var(--gut) 56px;min-height:60vh}
.page h1{font-size:clamp(26px,3.4vw,40px);font-weight:600}
.sec-h{margin-bottom:0}
.toolbar{position:sticky;top:calc(env(safe-area-inset-top,0px) + 68px);margin-top:24px}
.grp-h{display:flex;align-items:baseline;gap:12px;margin:0 0 18px}
.grp-h h2{font-size:24px;font-weight:600}
.grp-h span{font-size:14px}
.empty{padding:40px 0;text-align:center}
.grid{grid-template-columns:repeat(auto-fill,minmax(min(100%,420px),1fr))}
footer{border-top:1px solid var(--line);padding:28px var(--gut);color:var(--muted);font-size:13px}
footer .wrap{display:flex;gap:20px;align-items:center}
footer img{height:24px;width:auto;flex:none}
/* viewer */
.ov{position:fixed;inset:0;z-index:50;display:flex;flex-direction:column;background:rgba(3,17,27,.97)}
.ov-body{display:block;overflow:hidden}
.pdfv{height:100%;overflow:auto;padding:16px 12px 40px;display:flex;flex-direction:column;align-items:safe center;gap:14px;background:#0B1820}
.pdf-slot{flex:none;width:calc(min(100%,1280px) * var(--z,1));aspect-ratio:var(--ar,16/9);background:#06202F;border-radius:4px;display:grid;place-items:center;color:var(--muted);font-size:13px;overflow:hidden}
.pdf-slot canvas{display:block;width:100%;height:100%!important;max-width:none}
@media (max-width:720px){
  .toolbar{position:static}
  .search-in{flex:1 1 100%}
  .grid{grid-template-columns:minmax(0,1fr)}
  .doc-card.deck .doc-cover{padding:0}
  footer .wrap{flex-direction:column;align-items:flex-start}
  .ov-top{padding:10px 12px;gap:8px}
  .ov-top .lbl,.pdf-ctl{display:none}
}