1 files changed, 59 insertions, 8 deletions

diff --git a/site/assets/scss/_toc.scss b/site/assets/scss/_toc.scss
index 596945628..32bf3cf62 100644
--- a/site/assets/scss/_toc.scss
+++ b/site/assets/scss/_toc.scss
@@ -1,4 +1,4 @@
-// stylelint-disable selector-max-type
+// stylelint-disable selector-max-type, selector-no-qualifying-type
 
 .bd-toc {
   @include media-breakpoint-up(lg) {
@@ -15,23 +15,29 @@
 
     ul {
       padding-left: 0;
+      margin-bottom: 0;
       list-style: none;
 
       ul {
         padding-left: 1rem;
-        margin-top: .25rem;
       }
     }
 
-    li {
-      margin-bottom: .25rem;
-    }
-
     a {
+      display: block;
+      padding: .125rem 0 .125rem .75rem;
       color: inherit;
+      text-decoration: none;
+      border-left: .125rem solid transparent;
 
-      &:not(:hover) {
-        text-decoration: none;
+      &:hover,
+      &.active {
+        color: var(--bd-toc-color);
+        border-left-color: var(--bd-toc-color);
+      }
+
+      &.active {
+        font-weight: 500;
       }
 
       code {
@@ -40,3 +46,48 @@
     }
   }
 }
+
+.bd-toc-toggle {
+  display: flex;
+  align-items: center;
+
+  @include media-breakpoint-down(sm) {
+    justify-content: space-between;
+    width: 100%;
+  }
+
+  @include media-breakpoint-down(md) {
+    color: var(--bs-body-color);
+    border: 1px solid var(--bs-border-color);
+    @include border-radius(var(--bs-border-radius));
+
+    &:hover,
+    &:focus,
+    &:active,
+    &[aria-expanded="true"] {
+      color: var(--bd-violet);
+      background-color: var(--bs-body-bg);
+      border-color: var(--bd-violet);
+    }
+
+    &:focus,
+    &[aria-expanded="true"] {
+      box-shadow: 0 0 0 3px rgba(var(--bd-violet-rgb), .25);
+    }
+  }
+}
+
+.bd-toc-collapse {
+  @include media-breakpoint-down(md) {
+    nav {
+      padding: 1.25rem 1.25rem 1.25rem 1rem;
+      background-color: var(--bs-tertiary-bg);
+      border: 1px solid var(--bs-border-color);
+      @include border-radius(var(--bs-border-radius));
+    }
+  }
+
+  @include media-breakpoint-up(md) {
+    display: block !important; // stylelint-disable-line declaration-no-important
+  }
+}