.paper-library-actions {
  flex-wrap: wrap;
  justify-content: flex-start;
  gap: 8px;
}

.paper-library-actions .button {
  flex: 0 0 auto;
  padding-inline: 8px;
  gap: 8px;
  border-radius: 6px;
  white-space: nowrap;
}

.notes-panel .notes-workspace-toolbar {
  flex-wrap: nowrap;
  align-items: center;
  gap: 8px;
}

.notes-panel .notes-workspace-tabs {
  flex: 1 1 auto;
  min-width: 0;
}

.notes-panel .notes-workspace-tab {
  flex: 1 1 0;
  min-width: 0;
  min-height: 32px;
  height: 32px;
  padding: 4px 8px;
  line-height: 20px;
  border: 0;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  background: transparent;
  font-size: 13px;
}

.notes-panel .notes-workspace-tab[aria-selected="true"] {
  border-bottom-color: var(--ui-primary);
  background: transparent;
  color: var(--ui-text);
}

.notes-panel .notes-workspace-open:not([hidden]) {
  display: inline-grid;
  place-items: center;
  flex: 0 0 32px;
  width: 32px;
  min-width: 32px;
  height: 32px;
  min-height: 32px;
  padding: 4px;
  border-radius: 6px;
}

.notes-workspace-open svg {
  width: 18px;
  height: 18px;
}

.workspace .workspace-pane-toggle {
  min-height: 32px;
  border-radius: 6px;
}

.workspace-library-heading #workspace-library-toggle,
.workspace-pane-heading #workspace-notes-toggle {
  margin-inline-start: auto;
}

.workspace-pane-heading #workspace-library-toggle[aria-expanded="false"] {
  margin-inline-start: 0;
}

@media (min-width: 821px) {
  .workspace-library-heading,
  #notes-panel > .panel-heading {
    box-sizing: border-box;
    min-height: 44px;
    height: 44px;
    padding: 4px 12px;
    align-items: center;
  }

  html[data-research-shell="ready"] #reader-panel > .reader-heading-row {
    display: flex;
    align-items: center;
    min-height: 44px;
    padding: 4px 12px;
    gap: 8px;
  }

  html[data-research-shell="ready"] #reader-heading {
    display: none;
  }

  .reader-heading-row > :not(.workspace-pane-toggle) {
    min-width: 0;
  }

  .reader-heading-row .document-title {
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
    font-size: 13px;
  }

  .reader-panel .reader-toolbar {
    gap: 8px;
    padding: 8px 12px;
  }

  .reader-panel .reader-toolbar .button {
    min-height: 32px;
    height: 32px;
    border-radius: 6px;
    font-size: 13px;
  }

  .reader-panel .reader-toolbar .button-icon {
    width: 32px;
    min-width: 32px;
    padding: 4px;
  }

  .reader-panel .reader-toolbar :is(select, #page-input) {
    min-height: 32px;
    height: 32px;
    border-radius: 6px;
    font-size: 13px;
  }
}

.reader-panel .reader-toolbar .button > svg {
  width: 18px;
  height: 18px;
  flex: none;
}

@media (max-width: 820px) {
  .notes-panel .notes-workspace-tab,
  .notes-panel .notes-workspace-open:not([hidden]) {
    min-height: 44px;
  }

  .notes-panel .notes-workspace-open:not([hidden]) {
    flex-basis: 44px;
    width: 44px;
    height: 44px;
  }

  html[data-research-shell="ready"] body.mobile-layout-active:has(#assistant-panel:not([hidden])) .research-shell-host {
    display: none;
  }

  html.reader-mobile-tools-active .reader-toolbar :is(#page-prev, #page-next, #reader-navigation-toggle, #reader-find-toggle, .reader-mobile-trigger) {
    border-radius: 6px;
  }

  html.reader-mobile-tools-active .reader-toolbar :is(#page-prev, #page-next, #reader-navigation-toggle, #reader-find-toggle, .reader-mobile-trigger) svg {
    width: 20px;
    height: 20px;
  }

  html.reader-mobile-tools-active .reader-toolbar #page-input {
    border-radius: 6px;
    font-size: 16px;
  }
}

@media (min-width: 821px) and (max-width: 1100px) {
  .paper-library-actions .button {
    display: inline-grid;
    place-items: center;
    width: 32px;
    min-width: 32px;
    padding: 4px;
  }

  .paper-library-actions .button > span {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
  }
}

@media (pointer: coarse) {
  .workspace .workspace-pane-toggle,
  .paper-library-actions .button {
    min-height: 44px;
    height: 44px;
  }

  .workspace .workspace-pane-toggle {
    width: 44px;
    min-width: 44px;
  }
}

@media (pointer: coarse) and (min-width: 821px) {
  .paper-library-actions .button {
    min-width: 44px;
  }

  .notes-panel .notes-workspace-tab,
  .notes-panel .notes-workspace-open:not([hidden]) {
    min-height: 44px;
    height: 44px;
  }

  .notes-panel .notes-workspace-open:not([hidden]) {
    flex-basis: 44px;
    width: 44px;
  }

  .reader-panel .reader-toolbar .button,
  .reader-panel .reader-toolbar :is(select, #page-input) {
    min-height: 44px;
    height: 44px;
  }

  .reader-panel .reader-toolbar .button-icon {
    width: 44px;
    min-width: 44px;
  }
}