:root{--bg:#f5f6f8;--panel:#ffffff;--border:#e3e6ea;--text:#1c2128;--muted:#6b7280;--primary:#2563eb;--primary-dark:#1d4ed8;--danger:#dc2626;--ok:#16a34a}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,sans-serif;font-size:14px}a{color:var(--primary);text-decoration:none}h1{font-size:20px;margin:0 0 16px}h2{font-size:16px;margin:0 0 12px}.btn{display:inline-block;padding:8px 14px;border-radius:6px;border:1px solid var(--border);background:var(--panel);cursor:pointer;font-size:14px}.btn:hover{background:#f0f2f5}.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary)}.btn-primary:hover{background:var(--primary-dark)}.btn-danger{color:var(--danger);border-color:#f3c2c2}.input,select,textarea{width:100%;padding:8px 10px;border:1px solid var(--border);border-radius:6px;font-size:14px;background:#fff}.field{margin-bottom:12px}.field label{display:block;font-size:12px;color:#6b7280;margin-bottom:4px}.row{display:flex;gap:12px}.row>*{flex:1 1}.panel{background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:20px}table{width:100%;border-collapse:collapse}td,th{text-align:left;padding:10px 12px;border-bottom:1px solid var(--border)}th{font-size:12px;color:#6b7280;font-weight:600}td.num,th.num{text-align:right;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:12px;background:#eef2ff;color:var(--primary)}.muted{color:#6b7280}.error{color:var(--danger);font-size:13px}.shell{display:flex;min-height:100vh}.sidebar{width:220px;background:#0f172a;color:#cbd5e1;padding:20px 0;flex-shrink:0}.sidebar .brand{font-weight:700;color:#fff;padding:0 20px 20px;font-size:16px}.sidebar a{display:block;padding:10px 20px;color:#cbd5e1}.sidebar a.active,.sidebar a:hover{background:#1e293b;color:#fff}.sidebar .group{font-size:11px;text-transform:uppercase;color:#64748b;padding:16px 20px 4px}.main{flex:1 1;padding:28px 32px;max-width:1200px}.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));grid-gap:16px;gap:16px}.stat{background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:16px}.stat .label{font-size:12px;color:#6b7280}.stat .value{font-size:24px;font-weight:700;margin-top:6px}.login-wrap{display:flex;align-items:center;justify-content:center;min-height:100vh}.login-card{width:360px}