.sales-navigation { width: 100%; padding: 8px; margin-bottom: 22px; border-radius: 15px; }
.sales-navigation button { min-height: 46px; padding: 0 18px; font-size: 14px; color: var(--plum-strong); background: var(--pink-soft); }
.sales-navigation button.active { color: #fff; background: linear-gradient(135deg, var(--plum-strong), #8b4772); }
.purchase-product-filters { display: grid; grid-template-columns: repeat(3, minmax(150px, 1fr)); gap: 10px; }
.purchase-product-filters select:nth-of-type(4) { grid-column: span 2; }
.purchase-product-filters .button { width: 100%; }
@media (max-width: 860px) {
  .purchase-product-filters { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .purchase-product-filters select:nth-of-type(4) { grid-column: span 1; }
}
@media (max-width: 600px) {
  .sales-navigation { overflow-x: auto; }
  .sales-navigation button { white-space: nowrap; }
  .purchase-product-filters { grid-template-columns: 1fr; }
}