$grey: #CCC;
$lightgrey: #EEE;
$darkgrey: #888;
-$hovercolor: 20%;
$headerHeight: 55px;
$sidebarWidth: 350px;
$list-highlight: #FFFFC0;
$table-striped-bg: $offwhite;
$enable-negative-margins: true;
+
+// Workaround for a dartsass bug with bootstrap 5.1
+// This can be removed after upgrading to bootstrap 5.2
+// This copies definitions straight from bootstrap, but uses the sass-native
+// version of the subtract function.
+$border-width: 2px;
+$border-radius: .35rem;
+$card-border-radius: $border-radius;
+$card-border-width: $border-width;
+$card-inner-border-radius: subtract($card-border-radius, $card-border-width);