diff --git a/frontend/app/[locale]/blog/[slug]/PostDetails.tsx b/frontend/app/[locale]/blog/[slug]/PostDetails.tsx
index 611cc811..d3be7b4d 100644
--- a/frontend/app/[locale]/blog/[slug]/PostDetails.tsx
+++ b/frontend/app/[locale]/blog/[slug]/PostDetails.tsx
@@ -187,15 +187,15 @@ export default async function PostDetails({
   const post: Post | null = await client
     .withConfig({ useCdn: false })
     .fetch(query, {
-    slug: slugParam,
-    locale,
-  });
+      slug: slugParam,
+      locale,
+    });
   const recommendedAll: Post[] = await client
     .withConfig({ useCdn: false })
     .fetch(recommendedQuery, {
-    slug: slugParam,
-    locale,
-  });
+      slug: slugParam,
+      locale,
+    });
   const recommendedPosts = seededShuffle(
     recommendedAll,
     hashString(slugParam)
@@ -212,9 +212,71 @@ export default async function PostDetails({
   ].filter(Boolean) as string[];
   const authorMeta = authorMetaParts.join(' · ');
   const categoryLabel = post.categories?.[0];
+  const baseUrl = process.env.NEXT_PUBLIC_SITE_URL;
+  const postUrl = baseUrl
+    ? `${baseUrl}/${locale}/blog/${slugParam}`
+    : null;
+  const blogUrl = baseUrl ? `${baseUrl}/${locale}/blog` : null;
+  const description = plainTextFromPortableText(post.body).slice(0, 160);
+  const breadcrumbsJsonLd =
+    blogUrl && postUrl
+      ? {
+          '@context': 'https://schema.org',
+          '@type': 'BreadcrumbList',
+          itemListElement: [
+            {
+              '@type': 'ListItem',
+              position: 1,
+              name: tNav('blog'),
+              item: blogUrl,
+            },
+            {
+              '@type': 'ListItem',
+              position: 2,
+              name: post.title,
+              item: postUrl,
+            },
+          ],
+        }
+      : null;
+  const articleJsonLd =
+    postUrl
+      ? {
+          '@context': 'https://schema.org',
+          '@type': 'BlogPosting',
+          headline: post.title,
+          description: description || undefined,
+          mainEntityOfPage: postUrl,
+          url: postUrl,
+          datePublished: post.publishedAt || undefined,
+          author: post.author?.name
+            ? {
+                '@type': 'Person',
+                name: post.author.name,
+              }
+            : undefined,
+          image: post.mainImage ? [post.mainImage] : undefined,
+        }
+      : null;
 
   return (
     <main className="max-w-3xl mx-auto px-6 py-12">
+      {breadcrumbsJsonLd && (
+        <script
+          type="application/ld+json"
+          dangerouslySetInnerHTML={{
+            __html: JSON.stringify(breadcrumbsJsonLd),
+          }}
+        />
+      )}
+      {articleJsonLd && (
+        <script
+          type="application/ld+json"
+          dangerouslySetInnerHTML={{
+            __html: JSON.stringify(articleJsonLd),
+          }}
+        />
+      )}
       <div className="mb-6 relative left-1/2 right-1/2 w-screen -translate-x-1/2 px-6">
         <div className="mx-auto flex max-w-6xl justify-start">
           <div className="flex items-center gap-2 text-sm text-gray-500 dark:text-gray-400">
@@ -255,7 +317,11 @@ export default async function PostDetails({
             </Link>
           )}
           {authorName && post.publishedAt && <span>·</span>}
-          {post.publishedAt && <span>{formatBlogDate(post.publishedAt)}</span>}
+          {post.publishedAt && (
+            <time dateTime={post.publishedAt}>
+              {formatBlogDate(post.publishedAt)}
+            </time>
+          )}
         </div>
       )}
 
@@ -328,20 +394,20 @@ export default async function PostDetails({
                         />
                       </div>
                     )}
-                  <h3 className="mt-4 text-lg font-semibold text-gray-900 transition group-hover:underline underline-offset-4 dark:text-gray-100">
-                    {item.title}
-                  </h3>
-                  {item.body && (
-                    <p className="mt-2 text-sm leading-relaxed text-gray-600 dark:text-gray-400 line-clamp-2">
-                      {plainTextFromPortableText(item.body)}
-                    </p>
-                  )}
-                  {(item.author?.name || item.publishedAt) && (
-                    <div className="mt-auto pt-3 flex items-center gap-2 text-sm text-gray-500 dark:text-gray-400">
-                      {item.author?.image && (
-                        <span className="relative h-5 w-5 overflow-hidden rounded-full">
-                          <Image
-                            src={item.author.image}
+                    <h3 className="mt-4 text-lg font-semibold text-gray-900 transition group-hover:underline underline-offset-4 dark:text-gray-100">
+                      {item.title}
+                    </h3>
+                    {item.body && (
+                      <p className="mt-2 text-sm leading-relaxed text-gray-600 dark:text-gray-400 line-clamp-2">
+                        {plainTextFromPortableText(item.body)}
+                      </p>
+                    )}
+                    {(item.author?.name || item.publishedAt) && (
+                      <div className="mt-auto pt-3 flex items-center gap-2 text-sm text-gray-500 dark:text-gray-400">
+                        {item.author?.image && (
+                          <span className="relative h-5 w-5 overflow-hidden rounded-full">
+                            <Image
+                              src={item.author.image}
                               alt={item.author.name || 'Author'}
                               fill
                               className="object-cover"
@@ -349,9 +415,13 @@ export default async function PostDetails({
                           </span>
                         )}
                         {item.author?.name && <span>{item.author.name}</span>}
-                        {item.author?.name && item.publishedAt && <span>·</span>}
+                        {item.author?.name && item.publishedAt && (
+                          <span>·</span>
+                        )}
                         {item.publishedAt && (
-                          <span>{formatBlogDate(item.publishedAt)}</span>
+                          <time dateTime={item.publishedAt}>
+                            {formatBlogDate(item.publishedAt)}
+                          </time>
                         )}
                       </div>
                     )}
diff --git a/frontend/app/[locale]/blog/[slug]/page.tsx b/frontend/app/[locale]/blog/[slug]/page.tsx
index 32901f1d..c4721b0f 100644
--- a/frontend/app/[locale]/blog/[slug]/page.tsx
+++ b/frontend/app/[locale]/blog/[slug]/page.tsx
@@ -20,12 +20,16 @@ export async function generateMetadata({
   const { slug, locale } = await params;
 
   const post = await client.fetch(
-    groq`*[_type == "post" && slug.current == $slug][0]{ "title": coalesce(title[$locale], title.en, title) }`,
+    groq`*[_type == "post" && slug.current == $slug][0]{
+      "title": coalesce(title[$locale], title.en, title),
+      "description": pt::text(coalesce(body[$locale], body.en, body))[0...160]
+    }`,
     { slug, locale }
   );
 
   return {
     title: post?.title || 'Post',
+    description: post?.description || undefined,
   };
 }
 
diff --git a/frontend/app/[locale]/blog/category/[category]/page.tsx b/frontend/app/[locale]/blog/category/[category]/page.tsx
index 05296614..dc0971b8 100644
--- a/frontend/app/[locale]/blog/category/[category]/page.tsx
+++ b/frontend/app/[locale]/blog/category/[category]/page.tsx
@@ -124,7 +124,11 @@ export default async function BlogCategoryPage({
                   <span>{featuredPost.author.name}</span>
                 )}
                 {featuredPost.author?.name && featuredDate && <span>·</span>}
-                {featuredDate && <span>{featuredDate}</span>}
+                {featuredDate && featuredPost.publishedAt && (
+                  <time dateTime={featuredPost.publishedAt}>
+                    {featuredDate}
+                  </time>
+                )}
               </div>
               <Link
                 href={`/blog/${featuredPost.slug.current}`}
diff --git a/frontend/components/blog/BlogCard.tsx b/frontend/components/blog/BlogCard.tsx
index 9b22b2e6..646f282e 100644
--- a/frontend/components/blog/BlogCard.tsx
+++ b/frontend/components/blog/BlogCard.tsx
@@ -136,7 +136,9 @@ export default function BlogCard({
               {(post.author?.name || categoryLabel) && formattedDate && (
                 <span>·</span>
               )}
-              {formattedDate && <span>{formattedDate}</span>}
+              {formattedDate && post.publishedAt && (
+                <time dateTime={post.publishedAt}>{formattedDate}</time>
+              )}
             </div>
           )}
 
diff --git a/frontend/components/blog/BlogCategoryLinks.tsx b/frontend/components/blog/BlogCategoryLinks.tsx
index e3207821..755d5198 100644
--- a/frontend/components/blog/BlogCategoryLinks.tsx
+++ b/frontend/components/blog/BlogCategoryLinks.tsx
@@ -26,7 +26,6 @@ export function BlogCategoryLinks({
   const tNav = useTranslations('navigation');
   const pathname = usePathname();
 
-  // Helper function to get translated category label
   const getCategoryLabel = (categoryName: string): string => {
     const key = categoryName.toLowerCase() as
       | 'tech'
diff --git a/frontend/components/blog/BlogFilters.tsx b/frontend/components/blog/BlogFilters.tsx
index 53ab044c..689aae91 100644
--- a/frontend/components/blog/BlogFilters.tsx
+++ b/frontend/components/blog/BlogFilters.tsx
@@ -123,7 +123,10 @@ export default function BlogFilters({
     norm: string;
     data?: Author;
   } | null>(null);
-  const [authorProfile, setAuthorProfile] = useState<Author | null>(null);
+  const [authorProfile, setAuthorProfile] = useState<{
+    name: string;
+    data: Author;
+  } | null>(null);
   const [selectedCategory, setSelectedCategory] = useState<{
     name: string;
     norm: string;
@@ -148,7 +151,6 @@ export default function BlogFilters({
     router.replace(nextPath);
   };
 
-  // Helper function to get translated category label
   const getCategoryLabel = (categoryName: string): string => {
     const key = categoryName.toLowerCase() as 'tech' | 'career' | 'insights' | 'news' | 'growth';
     const categoryTranslations: Record<string, string> = {
@@ -224,7 +226,6 @@ export default function BlogFilters({
     didClearSearchRef.current = true;
   }, [pathname, router, searchParams, searchQuery]);
 
-  // categoryParam is handled via resolvedCategory to avoid state updates in effects.
 
   const resolvedAuthor = useMemo(() => {
     const normParam = normalizeAuthor(authorParam);
@@ -242,13 +243,9 @@ export default function BlogFilters({
 
   useEffect(() => {
     const name = resolvedAuthor?.name?.trim();
-    if (!name) {
-      setAuthorProfile(null);
-      return;
-    }
+    if (!name) return;
 
     let active = true;
-    if (resolvedAuthor?.data) setAuthorProfile(resolvedAuthor.data);
 
     fetch(
       `/api/blog-author?name=${encodeURIComponent(name)}&locale=${encodeURIComponent(
@@ -259,7 +256,7 @@ export default function BlogFilters({
       .then(response => (response.ok ? response.json() : null))
       .then((data: Author | null) => {
         if (!active) return;
-        if (data) setAuthorProfile(data);
+        if (data) setAuthorProfile({ name, data });
       })
       .catch(() => {
         if (!active) return;
@@ -268,7 +265,7 @@ export default function BlogFilters({
     return () => {
       active = false;
     };
-  }, [locale, resolvedAuthor?.data, resolvedAuthor?.name]);
+  }, [locale, resolvedAuthor?.name]);
 
   const filteredPosts = useMemo(() => {
     return posts.filter(post => {
@@ -299,7 +296,12 @@ export default function BlogFilters({
     });
   }, [posts, resolvedAuthor, resolvedCategory, searchQueryLower]);
 
-  const selectedAuthorData = authorProfile || resolvedAuthor?.data || null;
+  const selectedAuthorData = useMemo(() => {
+    const resolvedName = resolvedAuthor?.name;
+    if (!resolvedName) return null;
+    if (authorProfile?.name === resolvedName) return authorProfile.data;
+    return resolvedAuthor?.data || null;
+  }, [authorProfile, resolvedAuthor?.data, resolvedAuthor?.name]);
   const authorBioText = useMemo(() => {
     return plainTextFromPortableText(selectedAuthorData?.bio);
   }, [selectedAuthorData]);
@@ -340,9 +342,12 @@ export default function BlogFilters({
               </p>
               {featuredPost.publishedAt && (
                 <div className="mt-6 flex items-center justify-between text-xs tracking-[0.25em] text-gray-500 dark:text-gray-400">
-                  <span className="uppercase">
+                  <time
+                    dateTime={featuredPost.publishedAt}
+                    className="uppercase"
+                  >
                     {formatBlogDate(featuredPost.publishedAt)}
-                  </span>
+                  </time>
                   <Link
                     href={`/blog/${featuredPost.slug.current}`}
                     className="text-sm font-medium tracking-normal text-[var(--accent-primary)] transition hover:underline underline-offset-4"
diff --git a/frontend/components/blog/BlogHeaderSearch.tsx b/frontend/components/blog/BlogHeaderSearch.tsx
index a8e34f8c..47e81633 100644
--- a/frontend/components/blog/BlogHeaderSearch.tsx
+++ b/frontend/components/blog/BlogHeaderSearch.tsx
@@ -43,6 +43,7 @@ export function BlogHeaderSearch() {
   const [items, setItems] = useState<PostSearchItem[]>([]);
   const [isLoading, setIsLoading] = useState(false);
   const inputRef = useRef<HTMLInputElement>(null);
+  const containerRef = useRef<HTMLDivElement>(null);
   const router = useRouter();
   const debounceRef = useRef<number | null>(null);
 
@@ -52,9 +53,22 @@ export function BlogHeaderSearch() {
   }, [open]);
 
   useEffect(() => {
-    if (!open || items.length || isLoading) return;
+    if (!open) return;
+    const handlePointerDown = (event: MouseEvent) => {
+      if (!containerRef.current) return;
+      if (!containerRef.current.contains(event.target as Node)) {
+        setOpen(false);
+      }
+    };
+    document.addEventListener('mousedown', handlePointerDown);
+    return () => {
+      document.removeEventListener('mousedown', handlePointerDown);
+    };
+  }, [open]);
+
+  useEffect(() => {
+    if (!open || items.length || !isLoading) return;
     let active = true;
-    setIsLoading(true);
     fetch(SEARCH_ENDPOINT, { cache: 'no-store' })
       .then(response => (response.ok ? response.json() : []))
       .then((result: PostSearchItem[]) => {
@@ -118,11 +132,23 @@ export function BlogHeaderSearch() {
     setOpen(false);
   };
 
+  const startLoading = () => {
+    if (!items.length && !isLoading) {
+      setIsLoading(true);
+    }
+  };
+
   return (
-    <div className="relative flex items-center">
+    <div ref={containerRef} className="relative flex items-center">
       <button
         type="button"
-        onClick={() => setOpen(prev => !prev)}
+        onClick={() =>
+          setOpen(prev => {
+            const next = !prev;
+            if (next) startLoading();
+            return next;
+          })
+        }
         className="flex h-9 w-9 items-center justify-center rounded-md text-muted-foreground transition-colors hover:bg-secondary hover:text-foreground"
         aria-label="Search blog"
       >
@@ -148,7 +174,10 @@ export function BlogHeaderSearch() {
               value={value}
               onChange={event => {
                 setValue(event.target.value);
-                if (!open) setOpen(true);
+                if (!open) {
+                  setOpen(true);
+                  startLoading();
+                }
               }}
                 onKeyDown={event => {
                   if (event.key === 'Escape') setOpen(false);