.source-badge {
  display: inline-block;
  padding: 4px 8px;
  border-radius: 10px;
  font-size: 12px;
  background: #eee;
  color: #333;
  border: 1px solid #ddd;
}
.source-badge.ocpp-connected {
  background: #e6ffed;
  border-color: #86efac;
  color: #065f46;
}
.source-badge.ocpp-disconnected {
  background: #fff7ed;
  border-color: #fdba74;
  color: #7c2d12;
}

/* Simple layout helpers for the lab page */
.lab-wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 16px;
  font-family: system-ui, Segoe UI, Roboto, Arial, sans-serif;
}
.lab-card {
  background: #fff;
  color: #111;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  padding: 16px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.05);
}
@media (prefers-color-scheme: dark) {
  body { background: #0b0b0c; color: #f7f7f7; }
  .lab-card { background: #111214; color: #f7f7f7; border-color: #1f2937; }
}
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.col { display: flex; flex-direction: column; gap: 6px; }
.lab-input { padding: 10px 12px; border-radius: 8px; border: 1px solid #d1d5db; min-width: 280px; }
@media (prefers-color-scheme: dark) { .lab-input { background:#0b0b0c; color:#f7f7f7; border-color:#374151; } }
.btn { padding: 10px 12px; border-radius: 8px; border: 1px solid #d1d5db; background: #f3f4f6; cursor: pointer; }
.btn.primary { background: #019fff; border-color: #019fff; color: #fff; }
.btn[disabled] { opacity: .6; cursor: not-allowed; }
.muted { color: #6b7280; font-size: 12px; }
.lab-header { display:flex; align-items:center; gap:10px; margin-bottom:12px; }
.lab-header img { width:24px; height:24px; border-radius:6px; }
.error { color: #b91c1c; font-size: 12px; }