:root {
  --bg: #0f1419;
  --panel: #161c23;
  --panel-2: #1d242c;
  --border: #2a323c;
  --text: #e6edf3;
  --muted: #8b949e;
  --accent: #2f81f7;
  --accent-hover: #1f6feb;
  --danger: #f85149;
  --ok: #3fb950;
  --warn: #d29922;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 14px/1.5 -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code, pre { font-family: 'SFMono-Regular', Menlo, Consolas, monospace; }

.topbar {
  display: flex; align-items: center; gap: 24px;
  padding: 12px 24px;
  background: var(--panel); border-bottom: 1px solid var(--border);
}
.topbar .brand { font-weight: 600; }
.topbar .nav { display: flex; gap: 16px; flex: 1; }
.topbar .nav a { color: var(--muted); padding: 6px 8px; border-radius: 6px; }
.topbar .nav a:hover, .topbar .nav a.active { color: var(--text); background: var(--panel-2); text-decoration: none; }
.user-block { display: flex; align-items: center; gap: 12px; color: var(--muted); }
.user-name { color: var(--text); }

.container { max-width: 1080px; margin: 32px auto; padding: 0 24px; }
.auth-body { display: flex; justify-content: center; align-items: center; min-height: 100vh; }
.auth-container { width: 100%; max-width: 400px; padding: 24px; }

h1 { font-size: 24px; margin: 0 0 16px; }
h2 { font-size: 18px; margin: 24px 0 12px; }
.meta { color: var(--muted); margin-top: -8px; }

.page-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; }

.card { background: var(--panel); border: 1px solid var(--border); border-radius: 8px; padding: 24px; margin-bottom: 24px; }
.card.danger { border-color: rgba(248, 81, 73, 0.4); }

.form { display: flex; flex-direction: column; gap: 16px; }
.form label { display: flex; flex-direction: column; gap: 6px; color: var(--muted); }
.form input, .form select { padding: 8px 12px; border-radius: 6px; border: 1px solid var(--border); background: var(--panel-2); color: var(--text); font: inherit; }
.form .checkbox { flex-direction: row; align-items: center; gap: 8px; }

.inline-form { flex-direction: row; align-items: end; gap: 12px; }
.inline-form label { flex: 1; }

button, a.primary {
  display: inline-block; padding: 8px 16px; border-radius: 6px; border: 1px solid var(--border);
  background: var(--panel-2); color: var(--text); cursor: pointer; font: inherit;
}
button.primary, a.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
button.primary:hover, a.primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); text-decoration: none; }
button.danger { background: transparent; border-color: rgba(248, 81, 73, 0.5); color: var(--danger); }
button.danger:hover { background: rgba(248, 81, 73, 0.1); }
.link-button { background: transparent; border: none; color: var(--muted); cursor: pointer; padding: 0; }
.link-button:hover { color: var(--text); text-decoration: underline; }

.actions { display: flex; gap: 12px; margin-bottom: 24px; }
.inline { display: inline-block; }

.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; margin-bottom: 24px; }
.stat-card { background: var(--panel); border: 1px solid var(--border); border-radius: 8px; padding: 16px; }
.stat-card .label { display: block; color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: 0.5px; }
.stat-card .value { display: block; font-size: 28px; font-weight: 600; margin-top: 4px; }

.health-table { width: 100%; }
.health-table th { text-align: left; color: var(--muted); padding: 8px 0; width: 160px; font-weight: 500; }
.health-table td { padding: 8px 0; }

.data-table { width: 100%; border-collapse: collapse; background: var(--panel); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.data-table th, .data-table td { padding: 10px 14px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: middle; }
.data-table thead th { background: var(--panel-2); color: var(--muted); font-weight: 500; font-size: 12px; text-transform: uppercase; letter-spacing: 0.5px; }
.data-table tbody tr:last-child td { border-bottom: none; }

.status { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 12px; font-weight: 500; }
.status-CONNECTED, .status-ok { background: rgba(63, 185, 80, 0.15); color: var(--ok); }
.status-DISCONNECTED, .status-unavailable { background: rgba(248, 81, 73, 0.15); color: var(--danger); }
.status-QR_REQUIRED, .status-CONNECTING { background: rgba(210, 153, 34, 0.15); color: var(--warn); }
.status-ERROR { background: rgba(248, 81, 73, 0.2); color: var(--danger); }

.qr-block { background: #fff; padding: 24px; display: inline-block; border-radius: 8px; margin: 16px 0; }
.qr-block img { display: block; max-width: 280px; }

.banner { background: rgba(47, 129, 247, 0.1); border: 1px solid var(--accent); border-radius: 8px; padding: 16px; margin-bottom: 24px; }
.token-display { background: #000; color: #7ee787; padding: 12px; border-radius: 6px; word-break: break-all; user-select: all; }

.form-error {
  color: var(--danger);
  margin: 0 0 16px;
  font-size: 14px;
}