/* Persistent Research navigation across collection and record depths. */
html body #app .research-hub .rv31-nav--persistent{
 display:flex;gap:8px;align-items:center;flex-wrap:wrap;
 margin:0 0 18px;padding:10px 12px;
 border-bottom:1px solid #d5e3e8;
 background:#f5f9fa;
}
html body #app .research-hub .rv31-nav--persistent .rv31-nav-item{
 min-height:42px;white-space:normal;text-align:left;
 border-radius:5px;
}
html body #app .research-hub .rv31-nav--persistent .rv31-nav-item:focus-visible{
 outline:2px solid #087c86;outline-offset:2px;
}
@media(max-width:640px){
 html body #app .research-hub .rv31-nav--persistent{
  flex-wrap:nowrap;overflow-x:auto;overscroll-behavior-x:contain;
  scroll-padding-inline:12px;padding:9px 12px;
 }
 html body #app .research-hub .rv31-nav--persistent .rv31-nav-item{
  flex:0 0 auto;white-space:nowrap;
 }
}


/* Research scroll safety: top:0 sticky tabs and contextual back strips from
   legacy style.css overlap and cover record rows. Keep these in document flow
   until the shared institutional shell owns measured sticky offsets. */
html body #app .research-hub .rv31-nav,
html body #app .research-hub .rv31-line-context,
html body #app .research-hub .rv32-context-bar{
 position:static!important;
 top:auto!important;
 z-index:auto!important;
 backdrop-filter:none!important;
 -webkit-backdrop-filter:none!important;
}
html body #app .research-hub .rv31-nav .rv31-nav-item.on::after{
 bottom:0!important;
}