/* Mobile guardrails: the Deal grid scrolls inside its own panel, never the whole page. */
@media (max-width: 780px) {
  html, body { max-width: 100%; overflow-x: hidden; }
  .shell, #partnerDashboard, #masterDashboard { min-width: 0; max-width: 100%; }
  .partner-nav { flex-wrap: nowrap; max-width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .partner-nav button { flex: 0 0 auto; }
  #board.deal-table { width: 100%; max-width: 100%; min-width: 0; overflow-x: auto; overflow-y: hidden; -webkit-overflow-scrolling: touch; }
  #board.deal-table .table-row { min-width: 1050px; }
  .master-table, .partner-table { max-width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .master-grid { min-width: 750px; }
}