/* Keep the desktop action gap while the return control leads the mobile bar. */
.flow-return-pdf {
  order: 1;
  margin-right: -8px;
}

.flow-header-actions {
  order: 2;
}

.flow-continue {
  display: none;
}

@media (pointer: coarse) and (max-width: 820px), (pointer: coarse) and (max-height: 600px) {
  body.mobile-layout-active:has(.workspace[data-workspace-mode="reading"][data-mobile-pane="reader"] > #reader-panel[data-flow-active="true"]) > :is(.app-header, .workspace-modebar),
  .mobile-layout-active .research-shell-layout:has(> .workspace[data-workspace-mode="reading"][data-mobile-pane="reader"] > #reader-panel[data-flow-active="true"]) > .research-shell-host {
    display: none;
  }

  body.mobile-layout-active:has(.workspace[data-workspace-mode="reading"][data-mobile-pane="reader"] > #reader-panel[data-flow-active="true"]) #mobile-primary-navigation {
    grid-template-columns: repeat(var(--mobile-navigation-columns, 3), minmax(0, 1fr));
    min-height: calc(52px + env(safe-area-inset-bottom, 0px));
    padding: 3px calc(76px + env(safe-area-inset-right, 0px)) calc(4px + env(safe-area-inset-bottom, 0px)) max(4px, env(safe-area-inset-left, 0px));
  }

  body.mobile-layout-active:has(.workspace[data-workspace-mode="reading"][data-mobile-pane="reader"] > #reader-panel[data-flow-active="true"]) #mobile-primary-navigation .mobile-primary-button:not([data-mobile-pane="assistant"]) {
    position: relative;
    inset: auto;
    display: flex;
    flex-direction: column;
    width: auto;
    min-width: 44px;
    height: 44px;
    min-height: 44px;
    padding: 0 4px;
    gap: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    color: var(--ui-text-soft);
    box-shadow: none;
  }

  body.mobile-layout-active:has(.workspace[data-workspace-mode="reading"][data-mobile-pane="reader"] > #reader-panel[data-flow-active="true"]) #mobile-primary-navigation .mobile-primary-button:not([data-mobile-pane="assistant"])[aria-pressed="true"] {
    color: var(--ui-primary);
  }

  body.mobile-layout-active:has(.workspace[data-workspace-mode="reading"][data-mobile-pane="reader"] > #reader-panel[data-flow-active="true"]) #mobile-primary-navigation .mobile-primary-button:not([data-mobile-pane="assistant"]) > svg {
    width: 20px;
    height: 20px;
  }

  body.mobile-layout-active:has(.workspace[data-workspace-mode="reading"][data-mobile-pane="reader"] > #reader-panel[data-flow-active="true"]) #mobile-primary-navigation .mobile-primary-button:not([data-mobile-pane="assistant"]) .mobile-primary-label {
    position: static;
    display: block;
    width: auto;
    height: auto;
    padding: 0;
    clip-path: none;
    font-size: 11px;
    line-height: 16px;
  }

  .workspace[data-workspace-mode="reading"][data-mobile-pane="reader"] > #reader-panel[data-flow-active="true"]:not(.reader-fullscreen-panel) {
    padding: env(safe-area-inset-top, 0px) env(safe-area-inset-right, 0px) 0 env(safe-area-inset-left, 0px);
  }

  .workspace[data-workspace-mode="reading"][data-mobile-pane="reader"] > #reader-panel[data-flow-active="true"] > :is(.reader-heading-row, .reader-toolbar, .metadata-panel:not([open])),
  .workspace[data-workspace-mode="reading"][data-mobile-pane="reader"] > #reader-panel[data-flow-active="true"] > #reader-progress-status[data-status-key="readerProgressRestored"],
  .workspace[data-workspace-mode="reading"][data-mobile-pane="reader"] > #reader-panel[data-flow-active="true"] :is(.flow-heading-wrap h2, .flow-footer, .flow-order-note) {
    display: none !important;
  }

  .workspace[data-workspace-mode="reading"][data-mobile-pane="reader"] > #reader-panel[data-flow-active="true"] > #reader-progress-status:not([hidden]):not([data-status-key="readerProgressRestored"]) {
    display: block !important;
  }

  .workspace[data-workspace-mode="reading"][data-mobile-pane="reader"] > #reader-panel[data-flow-active="true"] .flow-reader {
    position: relative;
  }

  .workspace[data-workspace-mode="reading"][data-mobile-pane="reader"] > #reader-panel[data-flow-active="true"] .flow-header {
    flex: 0 0 48px;
    height: 48px;
    min-height: 48px;
    max-height: 48px;
    padding: 0 4px;
    gap: 4px;
  }

  .workspace[data-workspace-mode="reading"][data-mobile-pane="reader"] > #reader-panel[data-flow-active="true"] .flow-return-pdf {
    order: 0;
    margin: 0;
    border-color: transparent;
    background: transparent;
    color: var(--ui-text-soft);
  }

  .workspace[data-workspace-mode="reading"][data-mobile-pane="reader"] > #reader-panel[data-flow-active="true"] .flow-heading-wrap {
    display: flex;
    align-items: center;
    gap: 4px;
  }

  .workspace[data-workspace-mode="reading"][data-mobile-pane="reader"] > #reader-panel[data-flow-active="true"] .flow-heading-wrap p {
    display: block;
    flex: 1;
    min-width: 0;
    margin: 0;
    color: var(--ui-text);
    font-size: 13px;
    line-height: 20px;
  }

  .workspace[data-workspace-mode="reading"][data-mobile-pane="reader"] > #reader-panel[data-flow-active="true"] .flow-compact-page {
    display: inline-flex;
    flex: none;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    min-height: 44px;
    padding: 0 4px;
    border: 0;
    border-radius: 4px;
    background: transparent;
    color: var(--ui-text-soft);
    font: inherit;
    font-size: 13px;
    font-variant-numeric: tabular-nums;
    cursor: pointer;
  }

  .workspace[data-workspace-mode="reading"][data-mobile-pane="reader"] > #reader-panel[data-flow-active="true"] .flow-tools-toggle {
    display: inline-flex;
  }

  .workspace[data-workspace-mode="reading"][data-mobile-pane="reader"] > #reader-panel[data-flow-active="true"] :is(.flow-icon-button, .flow-tools-panel button, .flow-tools-panel input, .flow-tools-panel select) {
    min-width: 44px;
    min-height: 44px;
  }

  .workspace[data-workspace-mode="reading"][data-mobile-pane="reader"] > #reader-panel[data-flow-active="true"] .flow-icon-button {
    width: 44px;
    padding: 0;
  }

  /* Closed tools take no reading height; asynchronous feedback stays visible. */
  .workspace[data-workspace-mode="reading"][data-mobile-pane="reader"] > #reader-panel[data-flow-active="true"] .flow-tools-panel {
    display: contents;
  }

  .workspace[data-workspace-mode="reading"][data-mobile-pane="reader"] > #reader-panel.reader-mobile-chrome-hidden[data-flow-active="true"] .flow-reader[data-tools-open="false"] > .flow-tools-panel {
    display: contents !important;
  }

  .workspace[data-workspace-mode="reading"][data-mobile-pane="reader"] > #reader-panel[data-flow-active="true"] .flow-reader[data-tools-open="false"] > .flow-tools-panel :is(.flow-controls, .flow-translation-bar > label, .flow-translation-bar > button) {
    display: none;
  }

  .workspace[data-workspace-mode="reading"][data-mobile-pane="reader"] > #reader-panel[data-flow-active="true"] .flow-reader[data-tools-open="false"] > .flow-tools-panel > .flow-translation-bar {
    display: contents;
  }

  .workspace[data-workspace-mode="reading"][data-mobile-pane="reader"] > #reader-panel[data-flow-active="true"] .flow-reader[data-tools-open="false"] > .flow-tools-panel > .flow-translation-bar > p {
    flex: none;
    margin: 0;
    padding: 4px 12px;
  }

  .workspace[data-workspace-mode="reading"][data-mobile-pane="reader"] > #reader-panel[data-flow-active="true"] .flow-reader[data-tools-open="true"] > .flow-tools-panel {
    position: absolute;
    z-index: 45;
    top: 52px;
    right: 4px;
    left: 4px;
    display: block;
    max-width: 480px;
    max-height: calc(100% - 56px);
    margin-inline: auto;
    overflow: auto;
    overscroll-behavior: contain;
    border: 1px solid var(--ui-border-strong);
    border-radius: 4px;
    background: var(--ui-surface);
    box-shadow: none;
  }

  .workspace[data-workspace-mode="reading"][data-mobile-pane="reader"] > #reader-panel[data-flow-active="true"] .flow-controls {
    gap: 8px;
    padding: 8px;
  }

  .workspace[data-workspace-mode="reading"][data-mobile-pane="reader"] > #reader-panel[data-flow-active="true"] :is(.flow-text-modes, .flow-page-jump, .flow-utility-controls) {
    width: 100%;
    min-width: 0;
    flex-wrap: wrap;
    margin-left: 0;
  }

  .workspace[data-workspace-mode="reading"][data-mobile-pane="reader"] > #reader-panel[data-flow-active="true"] .flow-text-modes .button {
    flex: 1 1 auto;
    padding-inline: 8px;
  }

  .workspace[data-workspace-mode="reading"][data-mobile-pane="reader"] > #reader-panel[data-flow-active="true"] .flow-translation-bar {
    width: 100%;
    max-width: none;
    gap: 8px;
    padding: 8px;
  }

  .workspace[data-workspace-mode="reading"][data-mobile-pane="reader"] > #reader-panel[data-flow-active="true"] .flow-translation-bar label {
    flex: 1 1 100%;
    flex-wrap: wrap;
    width: 100%;
    max-width: 100%;
  }

  .workspace[data-workspace-mode="reading"][data-mobile-pane="reader"] > #reader-panel[data-flow-active="true"] .flow-translation-bar select {
    flex: 1 1 100%;
    width: 100%;
    min-width: 0;
    max-width: 100%;
  }

  .workspace[data-workspace-mode="reading"][data-mobile-pane="reader"] > #reader-panel[data-flow-active="true"] .flow-translation-bar > button {
    max-width: 100%;
    white-space: normal;
  }

  .workspace[data-workspace-mode="reading"][data-mobile-pane="reader"] > #reader-panel[data-flow-active="true"] .flow-tool-details[open] {
    flex-basis: 100%;
    width: 100%;
  }

  .workspace[data-workspace-mode="reading"][data-mobile-pane="reader"] > #reader-panel[data-flow-active="true"] .flow-popover {
    position: static;
    inset: auto;
    width: 100%;
    max-width: none;
    margin-top: 8px;
    padding: 8px;
    box-shadow: none;
  }

  .workspace[data-workspace-mode="reading"][data-mobile-pane="reader"] > #reader-panel[data-flow-active="true"] .flow-find-row {
    flex-wrap: wrap;
  }

  .workspace[data-workspace-mode="reading"][data-mobile-pane="reader"] > #reader-panel[data-flow-active="true"] .flow-find-row input {
    flex: 1 1 100%;
  }

  .workspace[data-workspace-mode="reading"][data-mobile-pane="reader"] > #reader-panel[data-flow-active="true"] .flow-preference-row {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) 44px;
    gap: 8px;
    overflow-wrap: anywhere;
  }

  .workspace[data-workspace-mode="reading"][data-mobile-pane="reader"] > #reader-panel[data-flow-active="true"] .flow-tools-panel :is(input:not([type="range"]), select) {
    font-size: 16px;
  }

  .workspace[data-workspace-mode="reading"][data-mobile-pane="reader"] > #reader-panel[data-flow-active="true"] .flow-continue {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 44px;
    max-width: 100%;
    margin: 16px auto 0;
    padding: 8px 16px;
  }

  .flow-compact-page:focus-visible {
    outline: 2px solid var(--ui-focus);
    outline-offset: -2px;
  }
}

@media (pointer: coarse) and (orientation: landscape) and (max-height: 600px) {
  body.mobile-layout-active:has(.workspace[data-workspace-mode="reading"][data-mobile-pane="reader"] > #reader-panel[data-flow-active="true"]) #mobile-primary-navigation {
    min-height: calc(44px + env(safe-area-inset-bottom, 0px));
    padding-top: 0;
    padding-bottom: env(safe-area-inset-bottom, 0px);
    border-top: 0;
  }

  body.mobile-layout-active:has(.workspace[data-workspace-mode="reading"][data-mobile-pane="reader"] > #reader-panel[data-flow-active="true"]) #mobile-primary-navigation .mobile-primary-button:not([data-mobile-pane="assistant"]) .mobile-primary-label {
    position: absolute;
    display: block;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
  }
}