:root{
  --bg:#f4f7fb;--panel:#fff;--text:#0f172a;--muted:#64748b;--line:#dbe4ee;
  --brand:#1266d8;--brand2:#0f3d78;--shadow:0 12px 34px rgba(15,23,42,.08)
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif}
button,input,select{font:inherit}
.shell{max-width:1500px;margin:auto;padding:18px}
.topbar{display:flex;justify-content:space-between;gap:20px;align-items:flex-start;margin-bottom:16px}
.topbar h1{margin:2px 0 4px;font-size:28px}
.topbar p{margin:0;color:var(--muted)}
.eyebrow{font-size:12px;font-weight:900;letter-spacing:.08em;color:var(--brand2)}
.topActions{display:flex;gap:8px;align-items:center}
.userLabel{font-size:13px;font-weight:800}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:16px;box-shadow:var(--shadow)}
.loginPanel{max-width:430px;margin:80px auto 0;display:grid;gap:12px}
.loginPanel h2{margin:0}
label{display:grid;gap:6px;font-size:12px;font-weight:800;color:#334155}
input,select{width:100%;padding:11px 12px;border:1px solid #cfd9e5;border-radius:10px;background:#fff;color:var(--text);outline:none}
input:focus,select:focus{border-color:#88b7f2;box-shadow:0 0 0 3px rgba(18,102,216,.12)}
.btn{border:1px solid #cfd9e5;background:#fff;color:#0f172a;border-radius:10px;padding:10px 13px;font-weight:850;cursor:pointer}
.btn.primary{background:var(--brand);border-color:var(--brand);color:#fff}
.btn.ghost{background:#fff}
.btn.wide{width:100%}
.hidden{display:none!important}
.msg{font-size:13px;color:#b91c1c;min-height:18px}
.muted{color:var(--muted)}
.filterHead{display:flex;justify-content:space-between;gap:12px;align-items:flex-start;margin-bottom:12px}
.filterHead h2{margin:0 0 2px}
.filterHead p{margin:0}
.grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:10px}
.wide2{grid-column:span 2}
.summary{display:flex;justify-content:space-between;gap:12px;align-items:center;padding:14px 4px 10px}
.summary strong{font-size:22px}
.results{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
.card{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:0 5px 18px rgba(15,23,42,.05)}
.thumb{aspect-ratio:4/3;background:#e8eef6;display:flex;align-items:center;justify-content:center;overflow:hidden;position:relative}
.thumb img{width:100%;height:100%;object-fit:cover;display:block}
.docIcon{font-size:52px}
.typeBadge{position:absolute;top:8px;left:8px;padding:4px 8px;border-radius:999px;font-size:10px;font-weight:900;background:rgba(15,23,42,.86);color:#fff}
.cardBody{padding:12px;display:grid;gap:8px}
.fileName{font-size:12px;font-weight:850;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.metaGrid{display:grid;grid-template-columns:1fr 1fr;gap:7px;font-size:12px}
.metaGrid span{display:block;color:var(--muted);font-size:10px;margin-bottom:1px}
.cardActions{display:flex;gap:8px}
.cardActions .btn{flex:1}
.more{display:block;margin:16px auto}
.viewer{position:fixed;inset:0;background:rgba(15,23,42,.82);z-index:10000;padding:18px;overflow:auto}
.viewerCard{max-width:1200px;margin:auto;background:#fff;border-radius:16px;padding:14px}
.viewerHead{display:flex;justify-content:space-between;gap:12px;align-items:flex-start;margin-bottom:12px}
.viewerHead h2{margin:0 0 4px}
.viewerBody{min-height:300px;background:#0f172a;border-radius:12px;display:flex;align-items:center;justify-content:center;overflow:auto}
.viewerBody img{display:block;max-width:100%;max-height:78vh;object-fit:contain}
.viewerBody iframe{width:100%;height:78vh;border:0;background:#fff}
.empty{grid-column:1/-1;background:#fff;border:1px dashed #cbd5e1;border-radius:14px;padding:40px;text-align:center;color:var(--muted)}
@media(max-width:1100px){.grid{grid-template-columns:repeat(3,1fr)}.wide2{grid-column:span 2}.results{grid-template-columns:repeat(3,1fr)}}
@media(max-width:760px){
  .shell{padding:10px}.topbar{align-items:center}.topbar h1{font-size:22px}.topbar p{display:none}
  .grid{grid-template-columns:1fr 1fr}.wide2{grid-column:1/-1}.results{grid-template-columns:1fr 1fr}
}
@media(max-width:520px){.grid{grid-template-columns:1fr}.wide2{grid-column:auto}.results{grid-template-columns:1fr}.summary{align-items:flex-start;flex-direction:column}}