@media (max-width: 1023px) {
  .dialog-backdrop {
    align-items: end;
    padding: 0;
  }

  .dialog,
  .dialog-wide {
    width: 100%;
    max-height: calc(100vh - var(--s-44));
    border-radius: var(--card-radius) var(--card-radius) 0 0;
  }

  .btn,
  .icon-button {
    min-height: var(--touch-height);
  }

  .icon-button {
    width: var(--touch-height);
  }

  .membership-lock {
    align-items: stretch;
    flex-direction: column;
  }

  .app-shell {
    padding-left: 0;
    padding-bottom: var(--shell-mobile-nav-height);
  }

  .sidebar,
  .statusbar,
  .desktop-only,
  .market-details {
    display: none;
  }

  .topbar {
    gap: var(--s-8);
    padding: 0 var(--s-10);
  }

  .topbar-title {
    font-size: var(--font-13);
  }

  .identity-cluster .tag,
  .account-name,
  .date-control .icon-button {
    display: none;
  }

  .mobile-account-label {
    display: inline;
  }

  .market-strip-row {
    gap: var(--s-12);
    overflow-x: auto;
    padding-right: var(--s-10);
    padding-left: var(--s-10);
    white-space: nowrap;
  }

  .market-toggle {
    display: none;
  }

  .page-frame {
    min-height: calc(100vh - var(--shell-topbar-height) - var(--shell-summary-height) - var(--shell-mobile-nav-height));
    padding: var(--s-12) var(--s-10);
  }

  .page-header {
    align-items: flex-start;
    gap: var(--s-4);
    flex-direction: column;
  }

  .mobile-nav {
    position: fixed;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: var(--z-mobile-nav);
    height: var(--shell-mobile-nav-height);
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    padding-bottom: env(safe-area-inset-bottom);
    border-top: var(--s-1) solid var(--color-border);
    background: var(--color-surface);
  }

  .mobile-nav-item {
    min-width: 0;
    display: grid;
    place-items: center;
    color: var(--color-text-secondary);
    font-size: var(--font-11);
  }

  .mobile-nav-item.router-link-active {
    color: var(--color-primary);
    font-weight: var(--weight-600);
  }

  .status-grid {
    grid-template-columns: 1fr 1fr;
  }

  .comparison-row {
    grid-template-columns: minmax(0, 1fr) var(--s-64) var(--s-64);
  }

  .search-layout {
    grid-template-columns: 1fr;
  }

  .search-results {
    max-height: none;
    border-right: 0;
    padding-right: 0;
  }

  .search-preview {
    display: none;
  }

  .auth-view {
    align-items: start;
    padding-top: var(--s-34);
  }

  .auth-panel {
    box-shadow: none;
  }

  .system-header,
  .system-header > div:first-child {
    align-items: flex-start;
    flex-direction: column;
  }

  .system-tabs {
    width: 100%;
    margin-left: 0;
    overflow-x: auto;
  }

  .system-grid,
  .model-grid {
    grid-template-columns: 1fr;
  }

  .credential-row,
  .selection-grid {
    grid-template-columns: 1fr;
    align-items: stretch;
  }

  .member-editor {
    position: static;
  }
}