:root{--bg: #0b1020;--bg-elev: #131a2e;--bg-elev-2: #1b2440;--border: #263154;--text: #e6ebf5;--text-dim: #9aa7c7;--primary: #3b82f6;--primary-hover: #2f6ede;--danger: #ef4444;--success: #22c55e;--warning: #f59e0b;--radius: 12px;--shadow: 0 8px 30px rgba(0, 0, 0, .4);--sidebar-w: 240px;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{background:var(--bg);color:var(--text);font-size:14px;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}.center-screen{height:100vh;display:grid;place-items:center;color:var(--text-dim)}.app-shell{display:grid;grid-template-columns:var(--sidebar-w) 1fr;height:100vh}.sidebar{background:var(--bg-elev);border-right:1px solid var(--border);display:flex;flex-direction:column;padding:18px 14px;gap:6px}.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16px;padding:6px 10px 18px;letter-spacing:.3px}.brand .dot{width:10px;height:10px;border-radius:50%;background:var(--primary);box-shadow:0 0 12px var(--primary)}.site-filter{display:flex;flex-direction:column;gap:6px;padding:6px 10px 14px;margin-bottom:6px;border-bottom:1px solid var(--border)}.site-filter label{font-size:11px;text-transform:uppercase;letter-spacing:.5px;color:var(--text-dim);font-weight:600}.site-filter select{width:100%;padding:8px 10px}.nav-link{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:10px;color:var(--text-dim);font-weight:500;transition:background .15s,color .15s}.nav-link:hover{background:var(--bg-elev-2);color:var(--text)}.nav-link.active{background:var(--primary);color:#fff}.sidebar-footer{margin-top:auto;border-top:1px solid var(--border);padding-top:12px;color:var(--text-dim);font-size:13px}.main{overflow:auto;padding:24px 28px}.topbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.page-title{font-size:22px;font-weight:700;margin:0}.subtitle{color:var(--text-dim);margin:4px 0 0}.card{background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--radius);padding:18px}.grid{display:grid;gap:16px}.btn{border:1px solid var(--border);background:var(--bg-elev-2);color:var(--text);padding:9px 14px;border-radius:10px;font-weight:600;cursor:pointer;transition:background .15s,border-color .15s,opacity .15s}.btn:hover{background:#22304f}.btn.primary{background:var(--primary);border-color:var(--primary);color:#fff}.btn.primary:hover{background:var(--primary-hover)}.btn.danger{background:transparent;border-color:var(--danger);color:var(--danger)}.btn.sm{padding:5px 10px;font-size:13px}.btn:disabled{opacity:.5;cursor:not-allowed}.field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}.field label{color:var(--text-dim);font-size:13px;font-weight:600}input,select{background:var(--bg);border:1px solid var(--border);color:var(--text);padding:10px 12px;border-radius:10px;font-size:14px;outline:none}input:focus,select:focus{border-color:var(--primary)}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:11px 12px;border-bottom:1px solid var(--border)}th{color:var(--text-dim);font-size:12px;text-transform:uppercase;letter-spacing:.5px}.badge{display:inline-flex;align-items:center;gap:6px;padding:3px 9px;border-radius:999px;font-size:12px;font-weight:600}.badge.on{background:#22c55e26;color:var(--success)}.badge.off{background:#9aa7c71f;color:var(--text-dim)}.badge.alert{background:#ef444426;color:var(--danger)}.cam-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:16px}.cam-tile{background:#000;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;position:relative;aspect-ratio:16 / 9}.cam-tile video{width:100%;height:100%;object-fit:cover;background:#000}.cam-tile:fullscreen{width:100vw;height:100vh;aspect-ratio:auto;border-radius:0;border:none}.cam-tile:fullscreen video{object-fit:contain}.cam-expand{padding:3px 9px;line-height:1;font-size:15px}.cam-overlay{position:absolute;inset:auto 0 0 0;display:flex;align-items:center;justify-content:space-between;gap:8px;padding:10px 12px;background:linear-gradient(transparent,#000000bf)}.cam-name{font-weight:600;text-shadow:0 1px 3px #000}.cam-placeholder{position:absolute;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;color:var(--text-dim);font-size:13px}.switch{position:relative;width:42px;height:24px;display:inline-block}.switch input{opacity:0;width:0;height:0}.switch .slider{position:absolute;top:0;right:0;bottom:0;left:0;background:var(--bg-elev-2);border:1px solid var(--border);border-radius:999px;transition:.2s}.switch .slider:before{content:"";position:absolute;width:16px;height:16px;left:3px;top:3px;background:var(--text-dim);border-radius:50%;transition:.2s}.switch input:checked+.slider{background:var(--primary);border-color:var(--primary)}.switch input:checked+.slider:before{transform:translate(18px);background:#fff}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#040812b3;display:grid;place-items:center;z-index:50;padding:20px}.modal{background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);width:100%;max-width:460px;padding:22px}.modal h3{margin:0 0 16px}.row{display:flex;gap:10px;align-items:center}.row.end{justify-content:flex-end}.error-text{color:var(--danger);font-size:13px;margin:8px 0 0}.muted{color:var(--text-dim)}.tabs{display:flex;gap:8px;margin-bottom:18px;flex-wrap:wrap}.login-wrap{min-height:100vh;display:grid;place-items:center;background:radial-gradient(1200px 600px at 50% -10%,#16203c,var(--bg))}.login-card{width:100%;max-width:380px;padding:32px}@media (max-width: 820px){.app-shell{grid-template-columns:1fr}.sidebar{position:fixed;z-index:40;width:var(--sidebar-w);height:100vh;transform:translate(-100%);transition:transform .2s}.sidebar.open{transform:translate(0)}.main{padding:16px}}