/* Keep dense workbook rows flowing inside each fixed source zone. */
.v4ref-zone-items{grid-auto-flow:row!important;grid-template-rows:none!important}
.v4ref-zone-items>.v4ref-blank-item{break-inside:avoid}

/* Visual-QA query only: isolate the photographed-map replica for source comparison. */
.v4ref-preview-shot{margin:0!important;background:#c8c1b4!important;overflow:hidden!important}
.v4ref-preview-shot .sidebar,.v4ref-preview-shot .topbar,.v4ref-preview-shot .mobile-nav,.v4ref-preview-shot .mobile-drawer,.v4ref-preview-shot .v4ref-page-head,.v4ref-preview-shot .subject-tabs,.v4ref-preview-shot .v4ref-modebar,.v4ref-preview-shot .v4ref-chapter-nav,.v4ref-preview-shot .v4ref-toolbar,.v4ref-preview-shot .v4ref-footnote{display:none!important}
.v4ref-preview-shot .app-shell{display:block!important;min-height:100vh!important}
.v4ref-preview-shot .main{margin:0!important;width:100vw!important;max-width:none!important;min-height:100vh!important;padding:0!important}
.v4ref-preview-shot .content{padding:0!important;margin:0!important;max-width:none!important;width:100%!important}
.v4ref-preview-shot .v4ref-viewport{height:100vh!important;min-height:100vh!important;width:100vw!important;border:0!important;border-radius:0!important;box-shadow:none!important;background:#c8c1b4!important}