:root{--bg: #0a0a0a;--bg-soft: #121212;--panel: #161616;--border: #2a2a2a;--text: #f5f5f5;--text-dim: #9a9a9a;--white: #ffffff;--radius: 10px;--shadow: 0 8px 24px rgba(0, 0, 0, .4)}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}.app-shell{display:flex;min-height:100vh}.sidebar{width:240px;background:var(--bg-soft);border-right:1px solid var(--border);padding:24px 16px;display:flex;flex-direction:column;gap:4px;position:sticky;top:0;height:100vh}.sidebar .brand{font-weight:700;font-size:20px;letter-spacing:1px;margin-bottom:24px;padding:0 8px}.sidebar .brand span{color:var(--text-dim);font-weight:400}.nav-link{padding:10px 12px;border-radius:var(--radius);color:var(--text-dim);font-size:14px;transition:background .15s ease,color .15s ease}.nav-link:hover{background:#ffffff0d;color:var(--text)}.nav-link.active{background:var(--white);color:#000;font-weight:600}.main{flex:1;padding:32px 40px;max-width:1200px}.page-title{font-size:24px;font-weight:700;margin-bottom:4px}.page-subtitle{color:var(--text-dim);margin-bottom:28px;font-size:14px}.card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);margin-bottom:20px;animation:fadeIn .25s ease}@keyframes fadeIn{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}table{width:100%;border-collapse:collapse;font-size:14px}th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--border)}th{color:var(--text-dim);font-weight:500;text-transform:uppercase;font-size:11px;letter-spacing:.5px}tr:hover td{background:#ffffff05}input,select{background:var(--bg);border:1px solid var(--border);color:var(--text);padding:9px 12px;border-radius:8px;font-size:14px;outline:none;transition:border-color .15s ease}input:focus,select:focus{border-color:var(--white)}.btn{background:var(--white);color:#000;border:none;padding:9px 16px;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer;transition:opacity .15s ease,transform .1s ease}.btn:hover{opacity:.85}.btn:active{transform:scale(.98)}.btn.secondary{background:transparent;color:var(--text);border:1px solid var(--border)}.btn.danger{background:#1c1c1c;color:#ff6b6b;border:1px solid #3a1f1f}.btn:disabled{opacity:.4;cursor:not-allowed}.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.grid{display:grid;gap:16px}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.badge{display:inline-block;padding:3px 9px;border-radius:999px;font-size:11px;font-weight:600;border:1px solid var(--border)}.badge.on{background:var(--white);color:#000}.badge.off{color:var(--text-dim)}.login-screen{min-height:100vh;display:flex;align-items:center;justify-content:center}.login-box{width:340px;background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow)}.login-box h1{font-size:20px;margin:0 0 24px}.login-box .field{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}.login-box label{font-size:12px;color:var(--text-dim)}.error-text{color:#ff6b6b;font-size:13px;margin-top:8px}.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}@media (max-width: 900px){.sidebar{width:72px;padding:16px 8px}.sidebar .brand span,.nav-link span.label{display:none}.main{padding:20px}.grid-2,.grid-3{grid-template-columns:1fr}}