:root{--bg: #0f172a;--bg-panel: #111827;--border: #1f2937;--text: #f8fafc;--text-dim: #94a3b8;--accent: #3b82f6;--accent-hover: #2563eb;--danger: #ef4444;--success: #22c55e;color-scheme:dark}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:var(--text)}a{color:var(--accent);text-decoration:none}.app-shell{display:flex;min-height:100vh}.sidebar{width:220px;flex-shrink:0;background:var(--bg-panel);border-right:1px solid var(--border);padding:16px 12px;display:flex;flex-direction:column;gap:2px}.sidebar h1{font-size:15px;padding:8px 10px 16px;color:var(--text)}.sidebar a,.sidebar .group-label{display:block;padding:8px 10px;border-radius:8px;font-size:14px;color:var(--text-dim)}.sidebar a:hover{background:#1e293b;color:var(--text)}.sidebar a.active{background:var(--accent);color:#fff}.sidebar .group-label{font-size:11px;text-transform:uppercase;letter-spacing:.05em;color:#475569;margin-top:12px;padding-bottom:2px}.main{flex:1;padding:28px 32px;max-width:1200px}.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}h2{margin:0 0 4px;font-size:20px}.subtitle{color:var(--text-dim);font-size:13px;margin-bottom:20px}.card{background:var(--bg-panel);border:1px solid var(--border);border-radius:12px;padding:20px;margin-bottom:20px}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:16px;margin-bottom:24px}.stat-card{background:var(--bg-panel);border:1px solid var(--border);border-radius:12px;padding:18px}.stat-card .value{font-size:26px;font-weight:600}.stat-card .label{color:var(--text-dim);font-size:12px;margin-top:4px}table{width:100%;border-collapse:collapse;font-size:14px}th,td{text-align:left;padding:10px 8px;border-bottom:1px solid var(--border)}th{color:var(--text-dim);font-weight:500;font-size:12px;text-transform:uppercase}tr:hover td{background:#16213380}button,input,select{font-family:inherit;font-size:14px}input,select{background:#0b1220;border:1px solid var(--border);color:var(--text);border-radius:8px;padding:8px 10px}button.btn{background:var(--accent);color:#fff;border:none;border-radius:8px;padding:8px 16px;cursor:pointer}button.btn:hover{background:var(--accent-hover)}button.btn.secondary{background:transparent;border:1px solid var(--border);color:var(--text)}button.btn.danger{background:var(--danger)}button.btn:disabled{opacity:.5;cursor:not-allowed}.form-row{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}.form-row label{font-size:13px;color:var(--text-dim)}.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px}.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:12px}.badge.ok{background:#14532d;color:#86efac}.badge.warn{background:#78350f;color:#fcd34d}.badge.danger{background:#7f1d1d;color:#fca5a5}.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center}.login-card{width:100%;max-width:360px;background:var(--bg-panel);border:1px solid var(--border);border-radius:16px;padding:32px}.error-text{color:var(--danger);font-size:13px;margin-top:8px}.empty-state{color:var(--text-dim);text-align:center;padding:40px 0}