/* panel — titled section container: a header (title + actions) over a bordered card body.
   Markup: .panel > (.panel__header > .panel__title + .panel__actions) + content. */
.panel {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: var(--space-6);
  box-shadow: var(--shadow-card-sm);
}
.panel__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border);
  gap: var(--space-4);
  flex-wrap: wrap;
}
.panel__title {
  font-family: var(--font-headline);
  font-size: var(--text-h3);
  font-weight: 700;
  color: var(--color-foreground);
  margin: 0;
}
.panel__actions { display: flex; gap: var(--space-2); flex-wrap: wrap; }
@media (max-width: 640px) {
  .panel { padding: var(--space-4); }
  .panel__header { flex-direction: column; align-items: flex-start; }
}