.lab-shell { max-width: 1100px; margin: 0 auto; }
.lab-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 1rem;
  padding: 1.25rem;
  backdrop-filter: blur(8px);
}
.lab-readonly {
  opacity: 0.92;
  background: rgba(15,23,42,0.55) !important;
  cursor: not-allowed;
}
.probe-item { border-bottom: 1px solid rgba(255,255,255,0.08); padding: 0.6rem 0; }
.probe-item:last-child { border-bottom: none; }