:root{--navy:#0f172a;--panel:#fff;--bg:#f3f6fb;--line:#d9e2ef;--text:#172033;--muted:#64748b;--blue:#2563eb;--green:#16a34a;--red:#dc2626;--amber:#d97706}*{box-sizing:border-box}body{margin:0;font-family:Segoe UI,Arial,sans-serif;background:var(--bg);color:var(--text)}.app-shell{display:flex;min-height:100vh}.sidebar{width:260px;background:var(--navy);color:white;padding:24px}.brand{font-size:22px;font-weight:700;margin-bottom:28px}.brand span{display:block;color:#93c5fd;font-size:14px}.sidebar a{display:block;color:#dbeafe;text-decoration:none;padding:11px 12px;border-radius:8px;margin:5px 0}.sidebar a:hover{background:#1e293b}.main{flex:1;padding:24px}.topbar{height:58px;background:white;border:1px solid var(--line);border-radius:14px;padding:16px 20px;display:flex;justify-content:space-between;margin-bottom:22px}.panel,.auth-card,.setup-card{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:22px;margin-bottom:20px;box-shadow:0 8px 24px rgba(15,23,42,.05)}h1{margin:0 0 16px}h2{margin:0 0 14px;font-size:18px}.muted{color:var(--muted)}.auth-page{min-height:100vh;display:grid;place-items:center;background:linear-gradient(135deg,#0f172a,#1e3a8a)}.auth-card{width:420px}.setup-card{width:min(980px,92vw)}label{display:block;font-weight:600;font-size:13px;color:#334155}input,select{width:100%;height:40px;border:1px solid var(--line);border-radius:9px;padding:8px 10px;margin-top:6px;background:white}.grid{display:grid;gap:16px}.grid.three{grid-template-columns:repeat(3,1fr)}.span-3{grid-column:span 3}.btn{border:0;border-radius:9px;padding:10px 16px;font-weight:700;cursor:pointer}.btn.small{padding:7px 12px;font-size:13px}.btn.primary{background:var(--blue);color:white}.btn.secondary{background:#e2e8f0;color:#0f172a}.btn.full{width:100%;margin-top:10px}.actions{display:flex;align-items:end}.alert{padding:12px 14px;border-radius:10px;margin:10px 0}.alert.danger{background:#fee2e2;color:#991b1b}.alert.success{background:#dcfce7;color:#166534}.kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:20px}.kpi{background:white;border:1px solid var(--line);border-radius:16px;padding:20px}.kpi span{color:var(--muted);display:block}.kpi strong{font-size:34px}.data-table{width:100%;border-collapse:collapse}.data-table th,.data-table td{padding:12px;border-bottom:1px solid var(--line);text-align:left;font-size:14px}.data-table th{color:#475569;background:#f8fafc}.badge{display:inline-block;padding:4px 9px;border-radius:999px;font-size:12px;font-weight:700;background:#e2e8f0}.badge.online{background:#dcfce7;color:#166534}.badge.offline{background:#fee2e2;color:#991b1b}.badge.warning,.badge.unknown{background:#fef3c7;color:#92400e}code{background:#f1f5f9;padding:2px 5px;border-radius:5px}@media(max-width:1000px){.grid.three,.kpi-grid{grid-template-columns:1fr}.span-3{grid-column:span 1}.sidebar{width:210px}}