:root {
  --bg: #070d18;
  --surface: #0f1a2e;
  --surface2: #152238;
  --border: rgba(255,255,255,.08);
  --text: #e8f0fe;
  --muted: #7a9bb8;
  --accent: #007eff;
  --accent2: #00c6ff;
  --success: #2dd4bf;
  --warning: #fbbf24;
  --danger: #f87171;
  --radius: 14px;
  --shadow: 0 8px 32px rgba(0,0,0,.35);
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:Tahoma,'Segoe UI',sans-serif;background:var(--bg);color:var(--text);min-height:100vh;line-height:1.6}
a{color:var(--accent2);text-decoration:none}
.layout{display:flex;min-height:100vh}
.sidebar{width:240px;background:var(--surface);border-left:1px solid var(--border);padding:1.25rem 0;display:flex;flex-direction:column;position:fixed;top:0;right:0;bottom:0;z-index:100}
.sidebar .brand{padding:0 1.25rem 1.25rem;border-bottom:1px solid var(--border);margin-bottom:1rem}
.sidebar .brand h1{font-size:1rem;font-weight:700;background:linear-gradient(135deg,var(--accent),var(--accent2));-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.sidebar .brand p{font-size:.72rem;color:var(--muted);margin-top:.25rem}
.nav{flex:1;padding:0 .75rem}
.nav a{display:flex;align-items:center;gap:.65rem;padding:.7rem 1rem;border-radius:10px;color:var(--muted);font-size:.88rem;margin-bottom:.25rem;transition:.2s}
.nav a:hover,.nav a.active{background:rgba(0,126,255,.15);color:var(--text)}
.nav a.active{border:1px solid rgba(0,126,255,.25)}
.nav svg{width:18px;height:18px;opacity:.85}
.sidebar-footer{padding:1rem 1.25rem;border-top:1px solid var(--border)}
.main{margin-right:240px;flex:1;padding:1.5rem 2rem;min-width:0}
.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem;flex-wrap:wrap;gap:1rem}
.topbar h2{font-size:1.35rem;font-weight:700}
.topbar .meta{font-size:.78rem;color:var(--muted)}
.kpi-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;margin-bottom:1.5rem}
.kpi{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.15rem 1.25rem;box-shadow:var(--shadow)}
.kpi .label{font-size:.78rem;color:var(--muted);margin-bottom:.35rem}
.kpi .value{font-size:1.75rem;font-weight:700;line-height:1.2}
.kpi .sub{font-size:.72rem;color:var(--muted);margin-top:.35rem}
.kpi.accent{border-color:rgba(0,126,255,.3);background:linear-gradient(135deg,rgba(0,126,255,.12),transparent)}
.kpi.success .value{color:var(--success)}
.kpi.warning .value{color:var(--warning)}
.kpi.danger .value{color:var(--danger)}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:1.25rem;margin-bottom:1.25rem}
@media(max-width:900px){.sidebar{position:relative;width:100%;border-left:none;border-bottom:1px solid var(--border)}.main{margin-right:0}.grid-2{grid-template-columns:1fr}}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.25rem;box-shadow:var(--shadow);margin-bottom:1.25rem}
.card-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}
.card-head h3{font-size:.95rem;color:var(--muted);font-weight:600}
.chart{display:flex;align-items:flex-end;gap:6px;height:140px;padding-top:.5rem}
.chart-bar{flex:1;display:flex;flex-direction:column;align-items:center;gap:4px;min-width:0}
.chart-bar .bar{width:100%;max-width:36px;border-radius:6px 6px 0 0;background:linear-gradient(180deg,var(--accent2),var(--accent));min-height:4px;transition:height .3s}
.chart-bar .lbl{font-size:.65rem;color:var(--muted);white-space:nowrap}
table{width:100%;border-collapse:collapse;font-size:.84rem}
th,td{padding:.75rem .65rem;text-align:right;border-bottom:1px solid var(--border)}
th{color:var(--muted);font-weight:600;font-size:.78rem;text-transform:uppercase;letter-spacing:.03em}
tr:hover td{background:rgba(255,255,255,.02)}
.badge{display:inline-flex;padding:.2rem .6rem;border-radius:99px;font-size:.72rem;font-weight:600}
.badge-ok{background:rgba(45,212,191,.15);color:var(--success)}
.badge-off{background:rgba(251,191,36,.15);color:var(--warning)}
.badge-danger{background:rgba(248,113,113,.15);color:var(--danger)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.4rem;padding:.55rem 1rem;border:none;border-radius:9px;cursor:pointer;font-family:inherit;font-size:.84rem;font-weight:600;transition:.2s}
.btn-primary{background:linear-gradient(135deg,var(--accent),#005bbf);color:#fff}
.btn-primary:hover{opacity:.9}
.btn-ghost{background:rgba(255,255,255,.06);color:var(--text);border:1px solid var(--border)}
.btn-danger{background:rgba(248,113,113,.2);color:var(--danger);border:1px solid rgba(248,113,113,.3)}
.btn-sm{padding:.4rem .75rem;font-size:.78rem}
.flash{padding:.75rem 1rem;border-radius:10px;margin-bottom:1rem;font-size:.85rem}
.flash.success{background:rgba(45,212,191,.12);border:1px solid rgba(45,212,191,.25);color:var(--success)}
.flash.error{background:rgba(248,113,113,.12);border:1px solid rgba(248,113,113,.25);color:var(--danger)}
.form-row{display:flex;gap:.65rem;flex-wrap:wrap}
.form-row input{flex:1;min-width:220px;padding:.7rem 1rem;border-radius:10px;border:1px solid var(--border);background:var(--surface2);color:var(--text);font-family:inherit}
.hint{font-size:.8rem;color:var(--muted);line-height:1.7;margin-top:.75rem}
.actions{display:flex;gap:.35rem;flex-wrap:wrap}
.timeline{max-height:320px;overflow-y:auto}
.timeline-item{display:flex;gap:.75rem;padding:.65rem 0;border-bottom:1px solid var(--border);font-size:.82rem}
.timeline-item .time{color:var(--muted);min-width:130px;font-size:.75rem}
.timeline-item .evt{flex:1}
.timeline-item.fail .evt{color:var(--danger)}
.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:1.5rem;background:radial-gradient(ellipse at top,#0d2847, var(--bg))}
.login-card{width:100%;max-width:400px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:2rem;box-shadow:var(--shadow)}
.login-card h1{text-align:center;margin-bottom:.5rem;font-size:1.2rem}
.login-card .sub{text-align:center;color:var(--muted);font-size:.82rem;margin-bottom:1.5rem}
.login-card input{width:100%;padding:.75rem 1rem;margin-bottom:1rem;border-radius:10px;border:1px solid var(--border);background:var(--surface2);color:var(--text);font-family:inherit}
.login-card button{width:100%;padding:.85rem}
.stat-pill{display:inline-block;padding:.15rem .5rem;border-radius:6px;background:rgba(255,255,255,.05);font-size:.75rem;color:var(--muted)}