diff --git a/.Jules/palette.md b/.Jules/palette.md
index 0b52d47..a584447 100644
--- a/.Jules/palette.md
+++ b/.Jules/palette.md
@@ -45,3 +45,7 @@
 ## 2026-03-01 - External Links and Interactive Icons
 **Learning:** Setting `aria-hidden="true"` on custom external link icons prevents screen readers from announcing that the link opens in a new tab. Additionally, using only `hover` classes on interactive icons within a link omits keyboard users from seeing the same visual interactions.
 **Action:** Always assign `role="img"` and `aria-label="(opens in new tab)"` to SVG icons indicating external links. Furthermore, apply equivalent `focus-visible` classes to any hover interactions inside interactive elements to ensure visual feedback parity for keyboard users.
+
+## 2026-03-29 - Heading Hierarchy in Nested UI Components
+**Learning:** Using hardcoded `<h3>` tags for titles inside reusable cards can break semantic heading hierarchy if the card is placed within another `<h3>` section, confusing screen reader users who navigate by headings.
+**Action:** Avoid hardcoding generic heading levels inside cards; ensure headings properly increment relative to their parent container, e.g., using `<h4>` when nested inside an `<h3>` section.
diff --git a/src/components/HomepageContent/index.js b/src/components/HomepageContent/index.js
index ad4291d..338ec56 100644
--- a/src/components/HomepageContent/index.js
+++ b/src/components/HomepageContent/index.js
@@ -93,12 +93,12 @@ function LatestPost() {
         <h3>Latest Update</h3>
         <div className="card shadow--md">
           <div className="card__header">
-            <h3>
+            <h4>
               <Link to={latestPost.url} className="inline-flex items-center gap-1 group">
                 {latestPost.title}
                 <ArrowIcon className="transition-transform group-hover:translate-x-1 group-focus-visible:translate-x-1" />
               </Link>
-            </h3>
+            </h4>
             <small>
               <time dateTime={latestPost.date}>
                 {new Date(latestPost.date).toLocaleDateString('en-US', {