/* PageFlux 3D v2.3.0 — larger reading stage + reserved control row.
   Deliberately layout-only: renderer, physics and control commands are untouched. */
@media (min-width: 721px) {
  ._3d-flip-book.fb3d-fullscreen-mode,
  ._3d-flip-book.full-size {
    height: clamp(680px, 78vh, 860px) !important;
    min-height: 680px !important;
  }

  ._3d-flip-book .view.toolbar-en .render,
  ._3d-flip-book .view.toolbar-en.zoom-en .render {
    height: calc(100% - 76px) !important;
  }

  ._3d-flip-book .tbox {
    bottom: 14px !important;
  }
}

@media (max-width: 720px) {
  ._3d-flip-book.fb3d-fullscreen-mode,
  ._3d-flip-book.full-size {
    min-height: 560px !important;
  }

  ._3d-flip-book .view.toolbar-en .render,
  ._3d-flip-book .view.toolbar-en.zoom-en .render {
    height: calc(100% - 68px) !important;
  }

  ._3d-flip-book .tbox {
    bottom: 10px !important;
  }
}