[FEAT] Add optional light mode

.github/workflows/test-lp.yml

@@ -19,6 +19,8 @@ jobs:
       - name: Run hugo command to test site builds
         run: |
           hugo
+      - name: Test theme preference behavior
+        run: node --test tools/tests/theme-preference.test.mjs
       - name: Get all changed markdown files
         id: changed-markdown-files
         uses: tj-actions/changed-files@v46

assets/css/cross-page.css

@@ -178,6 +178,28 @@ arm-top-navigation:not(:defined) {
     min-height: 60px;
 }
 
+.skip-link {
+    position: fixed;
+    top: 0;
+    left: 1rem;
+    z-index: 20000;
+    padding: 0.75rem 1rem;
+    color: #ffffff;
+    background: var(--ads-ui-ink-100, #080225);
+    border: 2px solid var(--ads-brand-horizon-blue, #0057ff);
+    border-radius: 0 0 4px 4px;
+    transform: translateY(-120%);
+    transition: transform 120ms ease;
+}
+
+.skip-link:focus,
+.skip-link:focus-visible {
+    color: #ffffff;
+    transform: translateY(0);
+    outline: 3px solid var(--ads-brand-horizon-blue, #0057ff);
+    outline-offset: 2px;
+}
+
 /* Fix global nav height */
 /* The arm-global-web-components script renders a position:fixed nav (0 flow space)
    and may inject a 50px sub-navigation bar in flow */

assets/css/home.css

@@ -216,6 +216,10 @@ table.contributor-table tbody {
     background-color: var(--ads-ui-ink-90);
 }
 
+.homepage-license {
+    color: #A3A8AE;
+}
+