$lineheight: 20px;
$typeheight: 14px;
-$offwhite: #f4f4ff;
+$offwhite: #f8f8ff;
$blue: #7092FF;
+$secondary: #888;
$lightblue: #B8C5F0;
$green: #7ebc6f;
+$vibrant-green: #76c551;
$grey: #CCC;
-$red: red;
$lightgrey: #EEE;
$darkgrey: #888;
-$hovercolor: 20%;
$headerHeight: 55px;
$sidebarWidth: 350px;
-$keyline: 1px solid $lightgrey;
-$border-radius: 3px;
-$list-highlight: #FFFFE6;
+$list-highlight: #FFFFC0;
$border: 1px solid $grey;
+
+$link-color: #24d;
+$link-hover-color: #24d;
+$link-decoration: none;
+$link-hover-decoration: underline;
+
+$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);