:root{--bg: #f5f6f8;--panel: #ffffff;--sidebar: #0f172a;--sidebar-hover: #1e293b;--sidebar-active: #2563eb;--text: #0f172a;--muted: #64748b;--border: #e2e8f0;--accent: #2563eb;--green: #16a34a;--red: #dc2626;--amber: #d97706;--radius: 10px;--shadow: 0 1px 3px rgba(0, 0, 0, .06), 0 1px 2px rgba(0, 0, 0, .04)}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);font-size:14px}a{color:inherit;text-decoration:none}.app{display:flex;min-height:100vh}.sidebar{width:240px;background:var(--sidebar);color:#cbd5e1;display:flex;flex-direction:column;padding:20px 12px;position:sticky;top:0;height:100vh;flex-shrink:0}.brand{padding:0 12px 20px;display:flex;flex-direction:column;gap:2px}.brand-title{display:flex;align-items:center;gap:8px;white-space:nowrap;font-size:20px;font-weight:700;color:#fff}.brand small{font-weight:400;font-size:11px;color:#64748b}.nav{display:flex;flex-direction:column;gap:2px;flex:1}.nav a{padding:10px 12px;border-radius:8px;color:#cbd5e1;display:flex;align-items:center;gap:10px;font-weight:500;transition:background .12s}.nav a:hover{background:var(--sidebar-hover);color:#fff}.nav a.active{background:var(--sidebar-active);color:#fff}.nav-section{font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:#475569;padding:16px 12px 6px}.sidebar-footer{border-top:1px solid #1e293b;padding-top:12px;margin-top:12px}.sidebar-footer .name{color:#fff;font-weight:600;padding:0 12px}.sidebar-footer .role{color:#64748b;font-size:12px;padding:0 12px 8px}.logout-btn{width:100%;text-align:left;background:none;border:none;color:#f87171;padding:8px 12px;cursor:pointer;border-radius:8px;font-size:14px}.logout-btn:hover{background:var(--sidebar-hover)}.main{flex:1;padding:28px 32px;max-width:1200px}.page-title{font-size:24px;font-weight:700;margin:0 0 4px}.page-sub{color:var(--muted);margin:0 0 24px}.grid{display:grid;gap:16px}.grid.cols-4{grid-template-columns:repeat(4,1fr)}.grid.cols-3{grid-template-columns:repeat(3,1fr)}.grid.cols-2{grid-template-columns:repeat(2,1fr)}@media(max-width:900px){.grid.cols-4,.grid.cols-3{grid-template-columns:repeat(2,1fr)}}.card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:18px 20px;box-shadow:var(--shadow)}.stat .label{color:var(--muted);font-size:13px;margin-bottom:6px}.stat .value{font-size:26px;font-weight:700}.stat .value.small{font-size:20px}.stat .sub{color:var(--muted);font-size:12px;margin-top:4px}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--border)}th{color:var(--muted);font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.03em}tr:last-child td{border-bottom:none}td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}.badge{display:inline-flex;align-items:center;gap:5px;padding:3px 9px;border-radius:999px;font-size:12px;font-weight:600}.badge.on{background:#dcfce7;color:#15803d}.badge.off{background:#fee2e2;color:#b91c1c}.dot{width:7px;height:7px;border-radius:50%;background:currentColor}input,select{width:100%;padding:9px 11px;border:1px solid var(--border);border-radius:8px;font-size:14px;background:#fff}input:focus,select:focus{outline:none;border-color:var(--accent)}label{display:block;font-size:13px;font-weight:500;margin-bottom:6px;color:#334155}.field{margin-bottom:14px}.btn{background:var(--accent);color:#fff;border:none;padding:9px 16px;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer}.btn:hover{background:#1d4ed8}.btn:disabled{opacity:.6;cursor:not-allowed}.btn.ghost{background:#fff;color:var(--text);border:1px solid var(--border)}.btn.ghost:hover{background:#f8fafc}.btn.sm{padding:6px 11px;font-size:13px}.btn.danger{background:var(--red)}.row{display:flex;gap:12px;align-items:flex-end;flex-wrap:wrap}.row>*{flex:1}.row>.fixed{flex:0 0 auto}.error{color:var(--red);font-size:13px;margin:8px 0}.pos{color:var(--green);font-weight:600}.neg{color:var(--red);font-weight:600}.muted{color:var(--muted)}.section-head{display:flex;justify-content:space-between;align-items:center;margin:28px 0 14px}.section-head h2{font-size:17px;margin:0}.login-wrap{display:flex;align-items:center;justify-content:center;min-height:100vh}.login-card{width:360px}.login-card .brand{align-items:center;padding-bottom:8px}.login-card .brand-title{color:var(--text)}.hint{background:#f1f5f9;border-radius:8px;padding:10px 12px;font-size:12px;color:var(--muted);margin-top:16px;line-height:1.6}.modal-bg{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f172a66;display:flex;align-items:center;justify-content:center;z-index:50}.modal{background:#fff;border-radius:12px;padding:24px;width:420px;max-height:90vh;overflow:auto}.modal h3{margin:0 0 16px}.alert{padding:12px 16px;border-radius:8px;margin-bottom:20px;font-size:14px}.alert.warn{background:#fef3c7;color:#92400e;border:1px solid #fde68a}