:root{color-scheme:light dark;--bg: #f5f7fa;--surface: #ffffff;--border: #e2e8f0;--text: #1a2233;--text-muted: #64748b;--accent: #2563eb;--accent-2: #0ea5e9;--danger: #dc2626;--success: #16a34a;--radius: 10px;--shadow: 0 1px 3px rgba(15, 23, 42, .08), 0 1px 2px rgba(15, 23, 42, .06)}@media (prefers-color-scheme: dark){:root{--bg: #0f1420;--surface: #171e2c;--border: #2a3448;--text: #e6eaf2;--text-muted: #93a1b8;--shadow: 0 1px 3px rgba(0, 0, 0, .4), 0 1px 2px rgba(0, 0, 0, .3)}}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text)}a{color:var(--accent)}.app-shell{display:flex;min-height:100vh}.sidebar{width:240px;flex-shrink:0;background:linear-gradient(180deg,var(--accent),var(--accent-2));color:#fff;padding:24px 18px;display:flex;flex-direction:column;gap:4px}.sidebar .brand{font-weight:700;font-size:1.15rem;margin-bottom:24px;letter-spacing:-.01em}.sidebar a{color:#ffffffd9;text-decoration:none;padding:10px 12px;border-radius:8px;font-size:.92rem}.sidebar a:hover,.sidebar a.active{background:#ffffff26;color:#fff}.main{flex:1;padding:32px;max-width:1100px}@media (max-width: 720px){.app-shell{flex-direction:column}.sidebar{width:100%;flex-direction:row;flex-wrap:wrap;gap:8px}.main{padding:20px}}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;margin-bottom:20px}h1{font-size:1.5rem;margin:0 0 20px}h2{font-size:1.1rem;margin:0 0 14px}table{width:100%;border-collapse:collapse;font-size:.9rem}th,td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--border)}th{color:var(--text-muted);font-weight:600;font-size:.8rem;text-transform:uppercase;letter-spacing:.03em}input,select{width:100%;padding:8px 10px;border:1px solid var(--border);border-radius:8px;background:var(--surface);color:var(--text);font-size:.9rem}label{display:block;font-size:.8rem;color:var(--text-muted);margin-bottom:4px}.field{margin-bottom:14px}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:14px}@media (max-width: 560px){.grid-2{grid-template-columns:1fr}}button,.btn{display:inline-flex;align-items:center;gap:6px;padding:9px 16px;border-radius:8px;border:none;background:var(--accent);color:#fff;font-size:.9rem;font-weight:600;cursor:pointer}button:hover{filter:brightness(1.08)}button.secondary{background:transparent;color:var(--text);border:1px solid var(--border)}button.danger{background:var(--danger)}.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:.75rem;font-weight:600}.badge.ok{background:#16a34a26;color:var(--success)}.badge.off{background:#dc262626;color:var(--danger)}.login-shell{min-height:100vh;display:flex;align-items:center;justify-content:center;background:radial-gradient(circle at top left,var(--accent-2) 0%,transparent 45%),radial-gradient(circle at bottom right,var(--accent) 0%,transparent 45%),var(--bg)}.login-card{width:360px;background:var(--surface);border-radius:16px;box-shadow:var(--shadow);padding:32px}.error-text{color:var(--danger);font-size:.85rem;margin-top:8px}.muted{color:var(--text-muted);font-size:.85rem}.toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.logo-mark{width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,var(--accent),var(--accent-2));display:inline-flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:.95rem}