:root{
  --bg:#f4f6f8;
  --card:#ffffff;
  --ink:#17202a;
  --muted:#667085;
  --line:#d9dee7;
  --primary:#1f4e79;
  --primary-2:#163a5b;
  --soft:#eaf1f7;
  --danger:#b42318;
  --ok:#067647;
  --shadow:0 18px 45px rgba(16,24,40,.08);
  --radius:18px;
}
*{box-sizing:border-box}
body{margin:0;background:linear-gradient(135deg,#f6f8fb 0%,#edf2f7 100%);font-family:Inter,Arial,Helvetica,sans-serif;color:var(--ink);min-height:100vh}
a{color:var(--primary);text-decoration:none}
.container{width:min(1180px,94vw);margin:0 auto;padding:28px 0 48px}.narrow{width:min(560px,92vw)}
.header{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:24px;padding:18px 22px;background:rgba(255,255,255,.84);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);backdrop-filter:blur(8px)}
.brand{display:flex;flex-direction:column;gap:2px}.brand strong{font-size:20px;letter-spacing:.2px}.brand span{font-size:13px;color:var(--muted)}
.nav-actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.user-pill{padding:9px 12px;border:1px solid var(--line);border-radius:999px;background:#fff;color:var(--muted);font-size:13px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:26px}.auth-card{margin-top:6vh}.auth-card h1{font-size:26px;margin:0 0 8px}.subtitle{color:var(--muted);line-height:1.5;margin:0 0 22px}.notice{border:1px solid #c9dded;background:#f2f8fd;padding:14px 16px;border-radius:14px;color:#264b68;font-size:14px;line-height:1.45;margin:16px 0}.notice strong{display:block;margin-bottom:4px}.error{background:#fff1f0;border:1px solid #f5c2bd;color:var(--danger);padding:13px 15px;border-radius:14px;margin-bottom:14px}.success{background:#ecfdf3;border:1px solid #abefc6;color:var(--ok);padding:13px 15px;border-radius:14px;margin-bottom:14px}
label{font-weight:700;font-size:14px;display:block;margin:14px 0 7px}input,select{width:100%;border:1px solid var(--line);border-radius:12px;padding:13px 14px;font-size:15px;background:#fff;outline:none;transition:.15s}input:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(31,78,121,.12)}.check{display:flex;gap:10px;align-items:flex-start;margin:16px 0}.check input{width:auto;margin-top:3px}.check label{margin:0;font-weight:600;color:#344054;line-height:1.4}.form-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:12px;background:var(--primary);color:#fff;font-weight:800;padding:12px 16px;cursor:pointer;font-size:14px;min-height:44px}.btn:hover{background:var(--primary-2);color:#fff}.btn.secondary{background:#fff;color:var(--primary);border:1px solid var(--line)}.btn.secondary:hover{background:var(--soft)}.btn.full{width:100%}.btn.danger{background:#b42318}.btn.small{padding:8px 11px;min-height:36px;font-size:13px}.muted{color:var(--muted);font-size:13px;line-height:1.45}.divider{height:1px;background:var(--line);margin:22px 0}.breadcrumbs{display:flex;flex-wrap:wrap;gap:8px;margin:2px 0 20px;color:var(--muted);font-size:14px}.breadcrumbs a{font-weight:700}.toolbar{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:18px;flex-wrap:wrap}.toolbar h1{margin:0;font-size:24px}.toolbar p{margin:5px 0 0;color:var(--muted)}.folder-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px;margin-bottom:24px}.folder-btn{display:flex;align-items:center;gap:12px;padding:18px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:0 8px 24px rgba(16,24,40,.05);font-weight:900;color:var(--ink);min-height:76px}.folder-btn:hover{border-color:#9bbbd3;background:#f8fbfe}.folder-icon{width:42px;height:42px;border-radius:12px;background:var(--soft);display:grid;place-items:center;font-size:23px}.files-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px}.file-card{border:1px solid var(--line);border-radius:16px;background:#fff;overflow:hidden;box-shadow:0 8px 24px rgba(16,24,40,.05);display:flex;flex-direction:column}.thumb{height:170px;background:#eef3f7;display:grid;place-items:center;border-bottom:1px solid var(--line);position:relative;overflow:hidden}.thumb iframe,.thumb img{width:100%;height:100%;border:0;object-fit:cover;background:#fff}.ext-badge{position:absolute;top:10px;left:10px;background:rgba(23,32,42,.86);color:#fff;border-radius:999px;padding:5px 9px;font-size:12px;font-weight:800;text-transform:uppercase}.doc-icon{font-size:48px;display:flex;flex-direction:column;align-items:center;gap:10px;color:#44546a}.doc-icon span{font-size:13px;font-weight:900;background:#fff;border:1px solid var(--line);border-radius:999px;padding:5px 10px;text-transform:uppercase}.file-info{padding:15px;display:flex;flex-direction:column;gap:8px;flex:1}.file-name{font-weight:900;line-height:1.25;word-break:break-word}.file-meta{color:var(--muted);font-size:13px}.file-actions{padding:0 15px 15px}.empty{padding:26px;background:#fff;border:1px dashed #b8c2cf;border-radius:16px;color:var(--muted);text-align:center}.admin-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:14px;margin:18px 0}.metric{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px;box-shadow:0 8px 24px rgba(16,24,40,.05)}.metric strong{font-size:28px;display:block}.metric span{color:var(--muted);font-size:13px}.table-wrap{overflow:auto;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:0 8px 24px rgba(16,24,40,.05);margin-bottom:22px}table{border-collapse:collapse;width:100%;font-size:13px}th,td{padding:12px 13px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}th{background:#f8fafc;color:#344054;white-space:nowrap}td{color:#243244}tr:last-child td{border-bottom:0}.admin-section h2{font-size:19px;margin:24px 0 12px}.filters{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:10px;margin:12px 0}.footer{color:var(--muted);font-size:12px;text-align:center;margin-top:26px}.hero-logo{width:54px;height:54px;border-radius:18px;background:linear-gradient(135deg,#1f4e79,#6b8fb0);display:grid;place-items:center;color:#fff;font-weight:900;font-size:22px}
@media(max-width:680px){.header{align-items:flex-start;flex-direction:column}.toolbar{align-items:flex-start}.form-actions .btn{width:100%}.container{padding-top:16px}.card{padding:20px}.thumb{height:145px}}