/* Modern alternatief voor sticky kolom zonder JS */
@media (max-width: 767px) {
  .table-wrapper {
    overflow-x: auto;
  }
  
  table.responsive th:first-child,
  table.responsive td:first-child {
    position: sticky;
    left: 0;
    background: var(--table-bg);
    z-index: 10;
    border-right: 1px solid var(--table-border);
  }
}