a.vr-tier-item {
  display: block;
  color: inherit;
  text-decoration: none;
  transition: border-color .15s ease, box-shadow .15s ease, transform .12s ease;
}
a.vr-tier-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(0,0,0,.18);
}
a.vr-tier-item--expert:hover  { border-color: rgba(34,197,94,.6); }
a.vr-tier-item--provenance:hover { border-color: rgba(234,179,8,.6); }
a.vr-tier-item--self:hover    { border-color: rgba(239,68,68,.45); }