Add Support button styles

These styles were originally in src/css/SupportDropdownMenu.module.css.

Author: josh-wong

src/css/custom.css

@@ -251,3 +251,85 @@ html[data-theme="dark"] .tooltip-glossary {
     width: 333px !important;
   }
 }
+
+/* Support button and dropdown */
+.supportDropdown {
+  display: inline-block;
+  position: relative;
+}
+
+.supportDropBtn {
+  align-items: center;
+  background-color: var(--ifm-color-secondary);
+  border: #afafaf 1px solid;
+  border-radius: var(--ifm-badge-border-radius);
+  color: #505050;
+  cursor: pointer;
+  display: flex;
+  font-size: 14px;
+  font-weight: 700;
+  justify-content: space-between;
+  min-width: 150px;
+  padding: 6px 12px;
+  text-align: left;
+  z-index: 1;
+}
+
+.supportDropdown:hover .supportDropBtn {
+  border-radius: var(--ifm-badge-border-radius);
+}
+
+.supportDropdownContent {
+  background-color: #f9f9f9;
+  box-shadow: 0px 8px 16px rgba(0, 0, 0, 0.2);
+  color: var(--ifm-color-emphasis-700);
+  display: block;
+  font-size: 14px;
+  min-width: 265px;
+  position: absolute;
+  right: 0;
+  z-index: 1;
+}
+
+/* Support dropdown button for mobile screens. */
+@media (max-width: 996px) { /* Adjust breakpoint if needed. */
+  .supportDropBtn {
+    font-size: 15px;
+  }
+  .supportDropdownContent {
+    font-size: 15px;
+    left: 0;
+    min-width: 320px;
+  }
+}
+
+.supportDropdownContent a {
+  color: black;
+  display: block;
+  padding: 6px 12px;
+  text-decoration: none;
+}
+
+.supportDropdownContent a:hover {
+  background-color: var(--ifm-dropdown-hover-background-color);
+}
+
+html[data-theme="dark"] .supportDropBtn {
+  background-color: #505050;
+  border: #6B7280 1px solid;
+  color: #f9f9f9;
+}
+
+html[data-theme="dark"] .supportDropdownContent {
+  background-color: #505050;
+
+  a {
+    color: #f9f9f9;
+  }
+}
+
+hr {
+  text-align: center;
+  margin: auto;
+  max-width: 91%;
+}