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

.wd-chart-card {
  background: var(--wd-color-surface);
  padding: 1rem;
  border-radius: 0.75rem;
  box-shadow: var(--wd-shadow-soft);
}

.wd-chart-card h2 {
  margin: 0 0 0.75rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--wd-text-primary);
}

.wd-chart-empty {
  padding: 1rem;
  color: var(--wd-text-muted);
  font-style: italic;
}
