/* R45 QA06 · transactional + responsive action hardening */
.r23-course-shell .r23-course-top .back,
.my-shell .qa05-back,
body.app-shell a[data-nav-back],
body.app-shell .qa06-back{
  background:transparent!important;color:inherit!important;border:1px solid currentColor!important;
  box-shadow:none!important;min-height:32px!important;padding:5px 9px!important;font-size:.8rem!important;font-weight:750!important;
  opacity:.82
}
.r23-course-shell .r23-course-top .back:hover,.my-shell .qa05-back:hover,body.app-shell .qa06-back:hover{opacity:1}

/* Secondary navigation never competes with start/continue/submit. */
.r23-course-shell [data-dashboard]{background:transparent!important;color:#31506f!important;border:1px solid #cbd8e6!important;box-shadow:none!important}
.r23-course-shell [data-dashboard]::before{content:'← ';font-weight:900}

@media(max-width:760px){
  body.app-shell .app-topbar .top-actions{flex-wrap:nowrap!important;overflow-x:auto!important;overscroll-behavior-inline:contain;padding-bottom:2px;scrollbar-width:thin}
  body.app-shell .app-topbar .top-actions .btn{flex:0 0 auto!important}
  .r23-course-shell .r23-modal-cta{display:flex!important;flex-wrap:nowrap!important;overflow-x:auto!important;overscroll-behavior-inline:contain;scroll-snap-type:x proximity;padding:2px 1px 5px;scrollbar-width:thin}
  .r23-course-shell .r23-modal-cta .r23-btn{flex:0 0 auto!important;width:auto!important;max-width:none!important;white-space:nowrap!important;scroll-snap-align:start}
}
@media(max-width:520px){
  .r23-course-shell .r23-modal-cta{display:flex!important;grid-template-columns:none!important;gap:6px!important}
  .r23-course-shell .r23-modal-cta .r23-btn{width:auto!important;min-height:38px!important;padding:8px 10px!important;font-size:.82rem!important;white-space:nowrap!important;grid-column:auto!important}
  .r23-course-shell .r35-question-nav{display:grid!important;grid-template-columns:minmax(76px,1fr) auto minmax(76px,1fr)!important;align-items:center!important}
  .r23-course-shell .r35-question-nav>span{grid-column:2!important;grid-row:1!important;white-space:nowrap}
  .r23-course-shell .r35-question-nav .r23-btn{width:100%!important;min-width:0!important;white-space:nowrap!important;padding-inline:8px!important}
  .my-shell .my-head .r23-wrap{flex-wrap:nowrap!important;overflow-x:auto!important}
  .my-shell .my-head .r23-btn{flex:0 0 auto!important}
}
@media(max-width:380px){
  .r23-course-shell .r23-modal-cta{display:flex!important;grid-template-columns:none!important}
  .r23-course-shell .r23-modal-cta .r23-btn{width:auto!important;grid-column:auto!important;font-size:.78rem!important;padding-inline:9px!important}
}

/* Payment/result pages: navigation remains visually secondary. */
.r45-actions .r45-btn.ghost{box-shadow:none!important}
.r45-actions{gap:8px!important;align-items:center!important;flex-wrap:wrap}