@media (min-width: 751px) and (max-width: 1100px) {
  .filter-toolbar { flex-direction: column; align-items: stretch; }
  .filter-right select { flex: 1; max-width: none; }
}

.quick-categories { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 1100px) { .quick-categories { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 540px) { .quick-categories { grid-template-columns: repeat(2, minmax(0, 1fr)); } }