DevLoversTeam
diff --git a/‎CHANGELOG.md‎
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diff --git a/‎frontend/app/[locale]/about/page.tsx‎
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diff --git a/‎frontend/app/[locale]/blog/[slug]/PostDetails.tsx‎
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diff --git a/‎frontend/app/[locale]/blog/category/[category]/page.tsx‎
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diff --git a/‎frontend/app/[locale]/blog/page.tsx‎
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diff --git a/‎frontend/app/[locale]/not-found.tsx‎
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diff --git a/‎frontend/app/[locale]/page.tsx‎
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diff --git a/‎frontend/app/[locale]/shop/admin/orders/[id]/RefundButton.tsx‎
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@@ -209,3 +209,47 @@ and this project adheres to [Semantic Versioning](https://semver.org/).
 - Improved accessibility and visual consistency across components
 - Resolved locale duplication in Stripe checkout redirects
 - Cleaned up redundant UI states, placeholders, and legacy styles
+
+## [0.5.1] - 2026-01-31
+
+### Added
+
+- Enhanced About page experience:
+  - Refreshed Features and Pricing sections with clearer messaging
+  - Interactive particle-based backgrounds with reduced-motion support
+  - New reusable UI components: `ParticleCanvas`, `GradientBadge`,
+    `SectionHeading`
+  - Improved mobile responsiveness and layout stability
+- Blog improvements:
+  - Dynamic grid backgrounds across blog pages
+  - Featured post CTA in blog hero
+  - Author filtering via URL with adaptive header behavior
+- Improved 404 error pages:
+  - Fully localized (uk / en / pl)
+  - Unified global rendering strategy
+  - Clear navigation actions back to Home
+- AI Word Helper updates:
+  - Switched model to `llama3-70b-8192` for improved response quality
+- Accessibility & UX:
+  - Better keyboard navigation for highlighted terms
+  - Improved touch and mobile interaction handling
+
+### Changed
+
+- Home page refinements:
+  - Hero section refactored into smaller reusable components
+  - Updated color palette, spacing, animations, and mobile behavior
+- Footer styling updated to match refreshed brand visuals
+- Blog layout aligned with updated design language and spacing rules
+- Default locale updated from `uk` to `en` with safer type validation
+- Internal codebase cleanup:
+  - Improved i18n defaults and validation
+  - Better cache initialization and error handling
+
+### Fixed
+
+- Fixed blog post image rendering for latest posts
+- Resolved layout centering issues on Leaderboard
+- Improved stability of text selection detection for AI helper
+- Fixed social icon hover styles in dark mode
+- Reduced visual overlap issues on small mobile screens
@@ -1,3 +1,4 @@
+import { getTranslations } from "next-intl/server"
 import { getPlatformStats } from "@/lib/about/stats"
 import { getSponsors } from "@/lib/about/github-sponsors"
 
@@ -7,6 +8,14 @@ import { FeaturesSection } from "@/components/about/FeaturesSection"
 import { PricingSection } from "@/components/about/PricingSection"
 import { CommunitySection } from "@/components/about/CommunitySection"
 
+export async function generateMetadata() {
+  const t = await getTranslations("about")
+  return {
+    title: t("metaTitle"),
+    description: t("metaDescription"),
+  }
+}
+
 export default async function AboutPage() {
   const [stats, sponsors] = await Promise.all([
     getPlatformStats(),
@@ -17,13 +26,13 @@ export default async function AboutPage() {
     <main className="min-h-screen bg-gray-50 dark:bg-black overflow-hidden text-gray-900 dark:text-white
       w-[100vw] relative left-[50%] right-[50%] -ml-[50vw] -mr-[50vw]"
     >
-      
+
       <HeroSection stats={stats} />
       <TopicsSection />
       <FeaturesSection />
       <PricingSection sponsors={sponsors} />
       <CommunitySection />
-      
+
     </main>
   )
 }
@@ -5,6 +5,7 @@ import { getTranslations } from 'next-intl/server';
 import { client } from '@/client';
 import { Link } from '@/i18n/routing';
 import { formatBlogDate } from '@/lib/blog/date';
+import { DynamicGridBackground } from '@/components/shared/DynamicGridBackground';
 
 export const revalidate = 0;
 
@@ -289,7 +290,8 @@ export default async function PostDetails({
     : null;
 
   return (
-    <main className="mx-auto max-w-7xl px-4 py-12 sm:px-6 lg:px-8">
+    <DynamicGridBackground className="bg-gray-50 transition-colors duration-300 dark:bg-transparent py-10">
+      <main className="relative z-10 mx-auto max-w-7xl px-4 py-12 sm:px-6 lg:px-8">
       {breadcrumbsJsonLd && (
         <script
           type="application/ld+json"
@@ -501,7 +503,8 @@ export default async function PostDetails({
       {post.resourceLink && null}
 
       {(authorBio || authorName || authorMeta) && null}
-    </main>
+      </main>
+    </DynamicGridBackground>
   );
 }
 
 
@@ -6,6 +6,8 @@ import { client } from '@/client';
 import { Link } from '@/i18n/routing';
 import { BlogCategoryGrid } from '@/components/blog/BlogCategoryGrid';
 import { formatBlogDate } from '@/lib/blog/date';
+import { DynamicGridBackground } from '@/components/shared/DynamicGridBackground';
+import { FeaturedPostCtaButton } from '@/components/blog/FeaturedPostCtaButton';
 
 export const revalidate = 0;
 
@@ -85,89 +87,89 @@ export default async function BlogCategoryPage({
   const featuredDate = formatBlogDate(featuredPost?.publishedAt);
 
   return (
-    <main className="mx-auto max-w-7xl px-4 py-12 sm:px-6 lg:px-8">
-      <nav className="mb-6" aria-label="Breadcrumb">
-        <ol className="flex items-center gap-2 text-sm text-gray-500 dark:text-gray-400">
-          <li className="flex items-center gap-2">
-            <Link
-              href="/blog"
-              className="transition hover:text-[var(--accent-primary)] hover:underline underline-offset-4"
-            >
-              {tNav('blog')}
-            </Link>
-            <span>&gt;</span>
-          </li>
-          <li className="flex items-center gap-2">
-            <span className="text-[var(--accent-primary)]" aria-current="page">
-              {categoryDisplay}
-            </span>
-          </li>
-        </ol>
-      </nav>
-      <h1 className="text-4xl font-bold mb-4 text-center">
-        {categoryDisplay}
-      </h1>
-      {featuredPost?.mainImage && (
-        <section className="mt-10">
-          <article className="group relative overflow-hidden rounded-3xl bg-white dark:bg-black">
-            <div className="h-[320px] w-full overflow-hidden sm:h-[380px] md:h-[450px] lg:h-[618px] max-h-[65vh]">
-              <Image
-                src={featuredPost.mainImage}
-                alt={featuredPost.title}
-                width={1400}
-                height={800}
-                className="h-full w-full object-cover transition-transform duration-300 group-hover:scale-[1.03]"
-                priority={false}
-              />
-            </div>
-            <div className="pointer-events-none absolute inset-x-0 bottom-0 h-56 bg-gradient-to-t from-white/95 via-white/70 to-transparent dark:from-black/90 dark:via-black/60 sm:h-64" />
-            <div className="absolute inset-x-0 bottom-0 p-6 sm:p-8">
-              {featuredPost.categories?.[0] && (
-                <div className="text-sm font-medium text-gray-900 dark:text-gray-100">
-                  {featuredPost.categories[0]}
-                </div>
-              )}
-              <h2 className="mt-2 text-3xl font-semibold text-gray-900 transition group-hover:text-[var(--accent-primary)] dark:text-white dark:group-hover:text-[var(--accent-primary)] sm:text-4xl">
-                {featuredPost.title}
-              </h2>
-              <div className="mt-3 flex items-center gap-3 text-sm text-gray-800 dark:text-gray-200">
-                {featuredPost.author?.image && (
-                  <Image
-                    src={featuredPost.author.image}
-                    alt={featuredPost.author.name || 'Author'}
-                    width={28}
-                    height={28}
-                    className="h-7 w-7 rounded-full object-cover"
-                  />
-                )}
-                {featuredPost.author?.name && (
-                  <span>{featuredPost.author.name}</span>
-                )}
-                {featuredPost.author?.name && featuredDate && <span>·</span>}
-                {featuredDate && featuredPost.publishedAt && (
-                  <time dateTime={featuredPost.publishedAt}>
-                    {featuredDate}
-                  </time>
-                )}
-              </div>
+    <DynamicGridBackground className="bg-gray-50 transition-colors duration-300 dark:bg-transparent py-10">
+      <main className="relative z-10 mx-auto max-w-7xl px-4 py-12 sm:px-6 lg:px-8">
+        <nav className="mb-6" aria-label="Breadcrumb">
+          <ol className="flex items-center gap-2 text-sm text-gray-500 dark:text-gray-400">
+            <li className="flex items-center gap-2">
               <Link
-                href={`/blog/${featuredPost.slug.current}`}
-                className="absolute bottom-6 right-6 inline-flex h-11 w-11 items-center justify-center rounded-full bg-[var(--accent-primary)] text-white opacity-0 transition group-hover:opacity-100 hover:brightness-110"
-                aria-label={featuredPost.title}
+                href="/blog"
+                className="transition hover:text-[var(--accent-primary)] hover:underline underline-offset-4"
               >
-                <span aria-hidden="true">↗</span>
+                {tNav('blog')}
               </Link>
-            </div>
-          </article>
-        </section>
-      )}
-      <div className="mt-12">
-        <BlogCategoryGrid posts={restPosts} />
-      </div>
-      {!posts.length && (
-        <p className="text-center text-gray-500 mt-10">{t('noPosts')}</p>
-      )}
-    </main>
+              <span>&gt;</span>
+            </li>
+            <li className="flex items-center gap-2">
+              <span className="text-[var(--accent-primary)]" aria-current="page">
+                {categoryDisplay}
+              </span>
+            </li>
+          </ol>
+        </nav>
+        <h1 className="text-4xl font-bold mb-4 text-left">
+          {categoryDisplay}
+        </h1>
+        {featuredPost?.mainImage && (
+          <section className="mt-10">
+            <article className="group relative overflow-hidden rounded-3xl bg-white dark:bg-black">
+              <div className="h-[320px] w-full overflow-hidden sm:h-[380px] md:h-[450px] lg:h-[618px] max-h-[65vh]">
+                <Image
+                  src={featuredPost.mainImage}
+                  alt={featuredPost.title}
+                  width={1400}
+                  height={800}
+                  className="h-full w-full object-cover transition-transform duration-300 group-hover:scale-[1.03]"
+                  priority={false}
+                />
+              </div>
+              <div className="pointer-events-none absolute inset-x-0 bottom-0 h-56 bg-gradient-to-t from-white/95 via-white/70 to-transparent dark:from-black/90 dark:via-black/60 sm:h-64" />
+              <div className="absolute inset-x-0 bottom-0 p-6 sm:p-8">
+                {featuredPost.categories?.[0] && (
+                  <div className="text-sm font-medium text-gray-900 dark:text-gray-100">
+                    {featuredPost.categories[0]}
+                  </div>
+                )}
+                <h2 className="mt-2 text-3xl font-semibold text-gray-900 transition group-hover:text-[var(--accent-primary)] dark:text-white dark:group-hover:text-[var(--accent-primary)] sm:text-4xl">
+                  {featuredPost.title}
+                </h2>
+                <div className="mt-3 flex items-center gap-3 text-sm text-gray-800 dark:text-gray-200">
+                  {featuredPost.author?.image && (
+                    <Image
+                      src={featuredPost.author.image}
+                      alt={featuredPost.author.name || 'Author'}
+                      width={28}
+                      height={28}
+                      className="h-7 w-7 rounded-full object-cover"
+                    />
+                  )}
+                  {featuredPost.author?.name && (
+                    <span>{featuredPost.author.name}</span>
+                  )}
+                  {featuredPost.author?.name && featuredDate && <span>·</span>}
+                  {featuredDate && featuredPost.publishedAt && (
+                    <time dateTime={featuredPost.publishedAt}>
+                      {featuredDate}
+                    </time>
+                  )}
+                </div>
+              </div>
+              <FeaturedPostCtaButton
+                href={`/blog/${featuredPost.slug.current}`}
+                label={featuredPost.title || 'Read more'}
+                className="!absolute !bottom-6 !right-6 z-10 h-11 w-11 rounded-full bg-[var(--accent-primary)] text-white opacity-0 shadow-sm transition group-hover:opacity-100 focus-visible:opacity-100 group-focus-within:opacity-100"
+              />
+            </article>
+          </section>
+        )}
+        <div className="mt-12">
+          <BlogCategoryGrid posts={restPosts} />
+        </div>
+        {!posts.length && (
+          <p className="text-center text-gray-500 mt-10">{t('noPosts')}</p>
+        )}
+      </main>
+    </DynamicGridBackground>
   );
 }
 
 
@@ -3,6 +3,8 @@ import { unstable_noStore as noStore } from 'next/cache';
 import { getTranslations } from 'next-intl/server';
 import { client } from '@/client';
 import BlogFilters from '@/components/blog/BlogFilters';
+import { BlogPageHeader } from '@/components/blog/BlogPageHeader';
+import { DynamicGridBackground } from '@/components/shared/DynamicGridBackground';
 
 export const revalidate = 0;
 
@@ -22,12 +24,18 @@ export async function generateMetadata({
 
 export default async function BlogPage({
   params,
+  searchParams,
 }: {
   params: Promise<{ locale: string }>;
+  searchParams?: Promise<{ [key: string]: string | string[] | undefined }>;
 }) {
   noStore();
   const { locale } = await params;
   const t = await getTranslations({ locale, namespace: 'blog' });
+  const sp = searchParams ? await searchParams : undefined;
+  const authorParam =
+    typeof sp?.author === 'string' ? sp.author.trim() : '';
+  const hasAuthorFilter = authorParam.length > 0;
 
   const posts = await client.withConfig({ useCdn: false }).fetch(
     groq`
@@ -77,16 +85,17 @@ export default async function BlogPage({
   const featuredPost = posts?.[0];
 
   return (
-    <main className="mx-auto max-w-7xl px-4 py-12 sm:px-6 lg:px-8">
-      <h1 className="text-4xl font-bold mb-4 text-center">{t('title')}</h1>
-      <p className="mx-auto max-w-2xl text-center text-base text-gray-500 dark:text-gray-400">
-        {t('subtitle')}
-      </p>
-      <BlogFilters
-        posts={posts}
-        categories={categories}
-        featuredPost={featuredPost}
-      />
-    </main>
+    <DynamicGridBackground className="bg-gray-50 transition-colors duration-300 dark:bg-transparent py-10">
+      <main className="relative z-10 mx-auto max-w-7xl px-4 py-12 sm:px-6 lg:px-8">
+        {!hasAuthorFilter && (
+          <BlogPageHeader title={t('title')} subtitle={t('subtitle')} />
+        )}
+        <BlogFilters
+          posts={posts}
+          categories={categories}
+          featuredPost={featuredPost}
+        />
+      </main>
+    </DynamicGridBackground>
   );
 }
@@ -1,5 +1,5 @@
 import { getTranslations } from 'next-intl/server';
-import HeroSection from '@/components/shared/HeroSection';
+import HeroSection from '@/components/home/HeroSection';
 
 export async function generateMetadata({
   params,
 
@@ -2,6 +2,7 @@
 
 import { useRouter } from 'next/navigation';
 import { useId, useState, useTransition } from 'react';
+import { useTranslations } from 'next-intl';
 
 type Props = {
   orderId: string;
@@ -10,6 +11,7 @@ type Props = {
 
 export function RefundButton({ orderId, disabled }: Props) {
   const router = useRouter();
+  const t = useTranslations('shop.admin.refund');
   const [isPending, startTransition] = useTransition();
   const [error, setError] = useState<string | null>(null);
   const errorId = useId();
@@ -59,13 +61,9 @@ export function RefundButton({ orderId, disabled }: Props) {
         aria-busy={isPending}
         aria-describedby={error ? errorId : undefined}
         className="rounded-md border border-border px-3 py-1.5 text-sm font-medium text-foreground transition-colors hover:bg-secondary disabled:cursor-not-allowed disabled:opacity-50"
-        title={
-          disabled
-            ? 'Refund is only available for paid Stripe orders'
-            : undefined
-        }
+        title={disabled ? t('onlyForPaid') : undefined}
       >
-        {isPending ? 'Refunding…' : 'Refund'}
+        {isPending ? t('refunding') : t('refund')}
       </button>
 
       {error ? (