:root{--bg:#f5f6f8;--surface:#fff;--border:#e2e5ea;--text:#1a1d23;--text-muted:#6b7280;--primary:#2953d6;--primary-hover:#1f42ad;--danger:#d64545;--success:#1a9e5c;--warning:#b8860b;--radius:8px;--sidebar-w:220px;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}*{box-sizing:border-box}html,body,#root{height:100%}body{background:var(--bg);color:var(--text);margin:0}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}button{font-family:inherit}.app-shell{min-height:100vh;display:flex}.sidebar{width:var(--sidebar-w);background:var(--surface);border-right:1px solid var(--border);flex-direction:column;flex-shrink:0;padding:20px 0;display:flex}.sidebar-brand{border-bottom:1px solid var(--border);margin-bottom:12px;padding:0 20px 20px;font-size:16px;font-weight:700}.sidebar-nav{flex-direction:column;flex:1;gap:2px;display:flex}.sidebar-nav a{color:var(--text);border-left:3px solid #0000;padding:10px 20px;font-size:14px;text-decoration:none}.sidebar-nav a:hover{background:var(--bg)}.sidebar-nav a.active{border-left-color:var(--primary);background:var(--bg);color:var(--primary);font-weight:600}.sidebar-footer{border-top:1px solid var(--border);margin-top:12px;padding:12px 20px 0}.sidebar-user{color:var(--text-muted);word-break:break-word;margin-bottom:8px;font-size:13px}.main{flex:1;min-width:0;padding:28px 32px}.page-header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-bottom:20px;display:flex}.page-header h1{margin:0;font-size:20px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px}.card+.card{margin-top:16px}.grid{gap:16px;display:grid}.grid-4{grid-template-columns:repeat(4,1fr)}.grid-2{grid-template-columns:repeat(2,1fr)}@media (width<=900px){.grid-4{grid-template-columns:repeat(2,1fr)}}.stat-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px 18px}.stat-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em;margin-bottom:6px;font-size:12px}.stat-value{font-size:24px;font-weight:700}table{border-collapse:collapse;width:100%;font-size:14px}th,td{text-align:left;border-bottom:1px solid var(--border);padding:10px 12px}th{color:var(--text-muted);text-transform:uppercase;letter-spacing:.03em;font-size:12px;font-weight:600}tbody tr:hover{background:var(--bg)}.badge{color:var(--primary);background:#eef1fa;border-radius:999px;padding:2px 8px;font-size:12px;font-weight:600;display:inline-block}.badge-success{color:var(--success);background:#e7f7ee}.badge-warning{color:var(--warning);background:#fbf3df}.badge-danger{color:var(--danger);background:#fbe9e9}.btn{background:var(--primary);color:#fff;cursor:pointer;border:none;border-radius:6px;align-items:center;gap:6px;padding:9px 16px;font-size:14px;font-weight:600;display:inline-flex}.btn:hover{background:var(--primary-hover)}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-secondary{background:var(--surface);color:var(--text);border:1px solid var(--border)}.btn-secondary:hover{background:var(--bg)}.btn-sm{padding:5px 10px;font-size:13px}input,select,textarea{border:1px solid var(--border);background:var(--surface);width:100%;color:var(--text);border-radius:6px;padding:8px 10px;font-family:inherit;font-size:14px}input:focus,select:focus,textarea:focus{outline:2px solid var(--primary);outline-offset:-1px}label{color:var(--text-muted);margin-bottom:4px;font-size:13px;font-weight:600;display:block}.field{margin-bottom:14px}.form-row{grid-template-columns:1fr 1fr;gap:14px;display:grid}.toolbar{flex-wrap:wrap;gap:10px;margin-bottom:16px;display:flex}.toolbar input,.toolbar select{width:auto;min-width:180px}.empty-state{text-align:center;color:var(--text-muted);padding:48px 20px}.error-banner{color:var(--danger);background:#fbe9e9;border:1px solid #f3caca;border-radius:6px;margin-bottom:16px;padding:10px 14px;font-size:14px}.login-page{background:var(--bg);justify-content:center;align-items:center;min-height:100vh;display:flex}.login-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);width:360px;padding:32px}.login-card h1{margin:0 0 4px;font-size:18px}.login-card p{color:var(--text-muted);margin:0 0 24px;font-size:13px}.spinner-wrap{min-height:200px;color:var(--text-muted);justify-content:center;align-items:center;display:flex}.modal-backdrop{z-index:50;background:#14161a66;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.modal{background:var(--surface);border-radius:var(--radius);width:480px;max-width:100%;max-height:90vh;padding:24px;overflow-y:auto}.modal h2{margin:0 0 18px;font-size:16px}.modal-actions{justify-content:flex-end;gap:10px;margin-top:20px;display:flex}.section-title{margin:0 0 12px;font-size:14px;font-weight:700}.detail-grid{grid-template-columns:repeat(3,1fr);gap:12px;font-size:14px;display:grid}.detail-grid div span{color:var(--text-muted);margin-bottom:2px;font-size:12px;display:block}