Refine single post header layout and styling

app/blog/[slug]/page.tsx

@@ -40,8 +40,32 @@ export default function BlogPostPage({ params }: Props) {
         <aside className="hidden w-56 shrink-0 lg:block">
           <PostToc />
         </aside>
-        <article className="prose prose-slate max-w-none flex-1 dark:prose-dark">
+        <div className="flex-1">
-          <h1>{post.title}</h1>
+          <header className="mb-6 space-y-2">
+            {post.published_at && (
+              <p className="text-xs text-slate-500 dark:text-slate-400">
+                {new Date(post.published_at).toLocaleDateString(
+                  siteConfig.defaultLocale
+                )}
+              </p>
+            )}
+            <h1 className="text-2xl font-bold leading-tight text-slate-900 sm:text-3xl dark:text-slate-50">
+              {post.title}
+            </h1>
+            {post.tags && (
+              <div className="flex flex-wrap gap-2 pt-1">
+                {post.tags.map((t) => (
+                  <span
+                    key={t}
+                    className="rounded-full bg-slate-100 px-2 py-0.5 text-xs text-slate-700 dark:bg-slate-800 dark:text-slate-200"
+                  >
+                    #{t}
+                  </span>
+                ))}
+              </div>
+            )}
+          </header>
+          <article className="prose prose-slate max-w-none dark:prose-dark">
             {post.feature_image && (
               // feature_image is stored as "../assets/xyz", serve from "/assets/xyz"
               // eslint-disable-next-line @next/next/no-img-element
@@ -51,28 +75,10 @@ export default function BlogPostPage({ params }: Props) {
                 className="my-4 rounded"
               />
             )}
-          {post.published_at && (
-            <p className="text-xs text-slate-500 dark:text-slate-400">
-              {new Date(post.published_at).toLocaleDateString(
-                siteConfig.defaultLocale
-              )}
-            </p>
-          )}
-          {post.tags && (
-            <p className="mt-1 text-xs text-slate-600 dark:text-slate-200">
-              {post.tags.map((t) => (
-                <span
-                  key={t}
-                  className="mr-1 rounded bg-slate-100 px-1 dark:bg-slate-800"
-                >
-                  #{t}
-                </span>
-              ))}
-            </p>
-          )}
             <div dangerouslySetInnerHTML={{ __html: post.body.html }} />
           </article>
         </div>
+      </div>
     </>
   );
 }