.wd-chart-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.wd-chart-card {
  background: #fff;
  padding: 1rem;
  border-radius: 0.75rem;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.08);
}

.wd-chart-card h2 {
  margin: 0 0 0.75rem;
  font-size: 1rem;
  font-weight: 600;
}

.wd-chart-empty {
  padding: 1rem;
  color: #6b7280;
  font-style: italic;
}
