.aec-demo-stack {
  display: grid;
  gap: 1.5rem;
}

.aec-demo-frame {
  background: linear-gradient(145deg, #edf4ff, #f8fbff);
  border: 1px solid #cbd8ee;
  border-radius: 1rem;
  box-shadow: 0 24px 60px rgba(7, 28, 65, .1);
  padding: clamp(.75rem, 3vw, 1.5rem);
}

.aec-demo-frame .cts-aec {
  margin: 0;
}

.aec-demo-caption {
  color: #40516e;
  font-size: .9rem;
  margin: .85rem .4rem 0;
}

.aec-completion-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.aec-completion-grid article {
  background: #fff;
  border: 1px solid #d7e1f1;
  border-radius: .75rem;
  padding: 1.15rem;
}

.aec-completion-grid h3 {
  color: #172033;
  margin-top: 0;
}

@media (max-width: 760px) {
  .aec-completion-grid {
    grid-template-columns: 1fr;
  }
}