:root{color:#e5e7eb;background:#0f172a;font-family:Arial,sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{background:#0f172a}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer;border:0;border-radius:12px;padding:10px 14px}#app{min-height:100vh}.login-page{background:linear-gradient(#0f172a,#020617);place-items:center;min-height:100vh;padding:20px;display:grid}.login-card{background:#111827;border:1px solid #1f2937;border-radius:20px;width:100%;max-width:420px;padding:28px;box-shadow:0 20px 40px #00000040}.login-card h1{margin-bottom:8px;font-size:32px}.login-card p{color:#94a3b8;margin-bottom:22px}.login-form{gap:16px;display:grid}.login-form label{color:#cbd5e1;gap:8px;font-size:14px;display:grid}.login-form input{color:#fff;background:#0f172a;border:1px solid #334155;border-radius:12px;outline:none;padding:14px}.login-form input:focus{border-color:#2563eb}.error-box{color:#fca5a5;background:#ef44441f;border:1px solid #ef444459;border-radius:12px;padding:12px}.full{width:100%}.app-shell{grid-template-columns:240px 1fr;min-height:100vh;display:grid}.sidebar{background:#111827;border-right:1px solid #1f2937;padding:24px}.logo{margin-bottom:28px;font-size:24px;font-weight:700}.sidebar nav{gap:10px;display:grid}.sidebar nav a{color:#cbd5e1;border-radius:10px;padding:12px 14px}.sidebar nav a.active,.sidebar nav a:hover{color:#fff;background:#1e293b}.content{padding:28px}.topbar{justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:24px;display:flex}.topbar h1{margin-bottom:6px;font-size:32px}.topbar p{color:#94a3b8}.topbar-actions{flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:10px;display:flex}.user-badge{color:#cbd5e1;background:#1e293b;border-radius:12px;padding:10px 12px;font-size:14px}.primary{color:#fff;background:#2563eb}.ghost{color:#fff;background:#1e293b}.cards{grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-bottom:24px;display:grid}.card,.panel{background:#111827;border:1px solid #1f2937;border-radius:16px}.card{padding:20px}.card span{color:#94a3b8;margin-bottom:12px;display:block}.card strong{font-size:28px}.panel{padding:20px}.panel-header{justify-content:space-between;align-items:center;gap:12px;margin-bottom:18px;display:flex}.panel-header h2{font-size:22px}.panel-header button,.small{color:#fff;background:#1e293b}.table-wrap{overflow-x:auto}table{border-collapse:collapse;width:100%;min-width:700px}th,td{text-align:left;border-top:1px solid #1f2937;padding:14px 10px}th{color:#94a3b8;font-weight:600}.badge{border-radius:999px;padding:6px 10px;font-size:12px;font-weight:700;display:inline-block}.badge.on{color:#4ade80;background:#22c55e26}.badge.off{color:#f87171;background:#ef444426}@media (width<=980px){.app-shell{grid-template-columns:1fr}.sidebar{border-bottom:1px solid #1f2937;border-right:0;padding:18px}.sidebar nav{grid-template-columns:repeat(2,minmax(0,1fr))}.content{padding:18px}.topbar{flex-direction:column;align-items:stretch}.topbar-actions{justify-content:flex-start}}