:root {
  --bg: #0f1419;
  --panel: #1a222d;
  --border: #2a3544;
  --text: #e8eef6;
  --muted: #8b9bb0;
  --accent: #3b82f6;
  --ok: #22c55e;
  --warn: #f59e0b;
  --bad: #ef4444;
  --font: "Segoe UI", system-ui, sans-serif;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: var(--font); background: var(--bg); color: var(--text); }
a { color: var(--accent); text-decoration: none; }
.layout { display: grid; grid-template-columns: 240px 1fr; min-height: 100vh; }
.sidebar { background: #121820; border-right: 1px solid var(--border); padding: 1.25rem; display: flex; flex-direction: column; gap: 1rem; }
.brand strong { display: block; font-size: 1.1rem; }
.brand span { color: var(--muted); font-size: .8rem; }
.sidebar nav { display: flex; flex-direction: column; gap: .35rem; flex: 1; }
.sidebar nav a { padding: .55rem .75rem; border-radius: 8px; color: var(--text); }
.sidebar nav a:hover { background: var(--panel); }
.content { padding: 1.5rem; }
.page-header h1 { margin: 0 0 1rem; font-size: 1.5rem; }
.panel { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 1rem; margin-bottom: 1rem; }
.stats-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: .75rem; margin-bottom: 1rem; }
.stat { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 1rem; }
.stat span { display: block; color: var(--muted); font-size: .8rem; }
.stat strong { font-size: 1.4rem; }
.stat.ok strong { color: var(--ok); }
.stat.bad strong { color: var(--bad); }
.stat.warn strong { color: var(--warn); }
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th, td { text-align: left; padding: .65rem .4rem; border-bottom: 1px solid var(--border); vertical-align: top; }
th { color: var(--muted); font-weight: 600; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: .75rem; align-items: end; }
input, select, textarea, button { width: 100%; padding: .55rem .7rem; border-radius: 8px; border: 1px solid var(--border); background: #0f1419; color: var(--text); }
textarea { min-height: 70px; }
button, .btn { background: var(--accent); border: none; color: #fff; cursor: pointer; font-weight: 600; }
.btn-danger { background: var(--bad); }
.actions { display: flex; flex-wrap: wrap; gap: .35rem; }
.actions form { margin: 0; }
.actions button, .actions a { width: auto; padding: .35rem .55rem; font-size: .8rem; display: inline-block; }
.badge { display: inline-block; padding: .15rem .45rem; border-radius: 999px; background: #243041; font-size: .75rem; text-transform: uppercase; }
.badge.online, .badge.success, .badge.ok { background: rgba(34,197,94,.2); color: var(--ok); }
.badge.offline, .badge.error, .badge.bad, .badge.critical { background: rgba(239,68,68,.2); color: var(--bad); }
.badge.warning, .badge.warn, .badge.recording { background: rgba(245,158,11,.2); color: var(--warn); }
.alert { background: #1e3a5f; border: 1px solid #2563eb; padding: .75rem 1rem; border-radius: 8px; margin-bottom: 1rem; }
.alert-error { background: rgba(239,68,68,.15); border-color: var(--bad); }
.alert-ok { background: rgba(34,197,94,.15); border-color: var(--ok); }
.muted { color: var(--muted); }
.logout-form button { background: transparent; border: 1px solid var(--border); }
.auth-body { min-height: 100vh; display: grid; place-items: center; background: radial-gradient(circle at top, #1e3a5f, var(--bg)); }
.auth-card { width: min(400px, 92vw); background: var(--panel); border: 1px solid var(--border); border-radius: 16px; padding: 2rem; }
.auth-card h1 { margin: 0; }
.auth-card p { color: var(--muted); margin-top: .25rem; }
.auth-card label { display: block; margin: .9rem 0; font-size: .85rem; color: var(--muted); }
.auth-card input { margin-top: .35rem; }
.config-row { margin-bottom: .75rem; }
.config-row small { display: block; color: var(--muted); margin: .2rem 0; }
@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { border-right: none; border-bottom: 1px solid var(--border); }
}