Merge remote-tracking branch 'origin/main' into feature/ai-search

# Conflicts:
#	.env
#	components/Header.tsx
#	components/home/Hero.tsx

app/[locale]/blog/[slug]/opengraph-image.tsx

@@ -8,6 +8,20 @@ export const size = OG_IMAGE_SIZE;
 export const contentType = 'image/png';
 export const runtime = 'nodejs';
 
+async function fetchImageAsBase64(url: string) {
+  try {
+    const res = await fetch(url);
+    if (!res.ok) return undefined;
+    const arrayBuffer = await res.arrayBuffer();
+    const buffer = Buffer.from(arrayBuffer);
+    const contentType = res.headers.get('content-type') || 'image/jpeg';
+    return `data:${contentType};base64,${buffer.toString('base64')}`;
+  } catch (error) {
+    console.error('Failed to fetch OG image:', url, error);
+    return undefined;
+  }
+}
+
 export default async function Image({
   params,
 }: {
@@ -32,12 +46,19 @@ export default async function Image({
       : `${SITE_URL}${post.frontmatter.featuredImage}`
     : undefined;
 
+  // Fetch image explicitly and convert to base64 because Satori sometimes struggles
+  // fetching remote URLs directly inside ImageResponse correctly in various environments.
+  let base64Image: string | undefined = undefined;
+  if (featuredImage) {
+    base64Image = await fetchImageAsBase64(featuredImage);
+  }
+
   return new ImageResponse(
     <OGImageTemplate
       title={post.frontmatter.title}
       description={post.frontmatter.excerpt}
       label={post.frontmatter.category || 'Blog'}
-      image={featuredImage}
+      image={base64Image || featuredImage}
     />,
     {
       ...OG_IMAGE_SIZE,

app/[locale]/blog/[slug]/page.tsx

@@ -1,12 +1,18 @@
 import { notFound, redirect } from 'next/navigation';
 import JsonLd from '@/components/JsonLd';
 import { SITE_URL } from '@/lib/schema';
-import { getPostBySlug, getAdjacentPosts, getReadingTime } from '@/lib/blog';
+import {
+  getPostBySlug,
+  getAdjacentPosts,
+  getReadingTime,
+  extractLexicalHeadings,
+} from '@/lib/blog';
 import { Metadata } from 'next';
 import Link from 'next/link';
 import Image from 'next/image';
 import PostNavigation from '@/components/blog/PostNavigation';
 import PowerCTA from '@/components/blog/PowerCTA';
+import TableOfContents from '@/components/blog/TableOfContents';
 import { Heading } from '@/components/ui';
 import { setRequestLocale } from 'next-intl/server';
 import BlogEngagementTracker from '@/components/analytics/BlogEngagementTracker';
@@ -67,6 +73,10 @@ export default async function BlogPost({ params }: BlogPostProps) {
 
   const { prev, next, isPrevRandom, isNextRandom } = await getAdjacentPosts(post.slug, locale);
 
+  // Convert Lexical content into a plain string to estimate reading time roughly
+  // Extract headings for TOC
+  const headings = extractLexicalHeadings(post.content?.root || post.content);
+
   // Convert Lexical content into a plain string to estimate reading time roughly
   const rawTextContent = JSON.stringify(post.content);
 
@@ -88,6 +98,7 @@ export default async function BlogPost({ params }: BlogPostProps) {
               alt={post.frontmatter.title}
               fill
               priority
+              quality={100}
               className="object-cover"
               sizes="100vw"
               style={{
@@ -113,7 +124,7 @@ export default async function BlogPost({ params }: BlogPostProps) {
                 </Heading>
                 <div className="flex flex-wrap items-center gap-6 text-white/80 text-sm md:text-base font-medium">
                   <time dateTime={post.frontmatter.date} suppressHydrationWarning>
-                    {new Date(post.frontmatter.date).toLocaleDateString(locale, {
+                    {new Date(post.frontmatter.date).toLocaleDateString(locale || 'de', {
                       year: 'numeric',
                       month: 'long',
                       day: 'numeric',
@@ -150,7 +161,7 @@ export default async function BlogPost({ params }: BlogPostProps) {
             </Heading>
             <div className="flex items-center gap-6 text-text-primary/80 font-medium">
               <time dateTime={post.frontmatter.date} suppressHydrationWarning>
-                {new Date(post.frontmatter.date).toLocaleDateString(locale, {
+                {new Date(post.frontmatter.date).toLocaleDateString(locale || 'de', {
                   year: 'numeric',
                   month: 'long',
                   day: 'numeric',
@@ -231,10 +242,10 @@ export default async function BlogPost({ params }: BlogPostProps) {
             </div>
           </div>
 
-          {/* Right Column: Sticky Sidebar - Temporarily Hidden without ToC */}
+          {/* Right Column: Sticky Sidebar - TOC */}
           <aside className="sticky-narrative-sidebar hidden lg:block">
-            <div className="space-y-12">
-              {/* Future Payload Table of Contents Implementation */}
+            <div className="space-y-12 lg:sticky lg:top-32">
+              <TableOfContents headings={headings} locale={locale} />
             </div>
           </aside>
         </div>

app/[locale]/blog/page.tsx

@@ -198,7 +198,7 @@ export default async function BlogIndex({ params }: BlogIndexProps) {
 
                       <div className="flex items-center gap-3 text-xs md:text-sm font-bold text-white/80 mb-3 tracking-widest uppercase">
                         <time dateTime={post.frontmatter.date} suppressHydrationWarning>
-                          {new Date(post.frontmatter.date).toLocaleDateString(locale, {
+                          {new Date(post.frontmatter.date).toLocaleDateString(locale || 'de', {
                             year: 'numeric',
                             month: 'long',
                             day: 'numeric',

app/[locale]/contact/page.tsx

@@ -8,6 +8,7 @@ import { SITE_URL } from '@/lib/schema';
 import { getOGImageMetadata } from '@/lib/metadata';
 import { Suspense } from 'react';
 import ContactMap from '@/components/ContactMap';
+import ObfuscatedEmail from '@/components/ObfuscatedEmail';
 
 interface ContactPageProps {
   params: Promise<{
@@ -204,12 +205,10 @@ export default async function ContactPage({ params }: ContactPageProps) {
                       <h4 className="text-base md:text-xl font-bold text-primary mb-1 md:mb-2">
                         {t('info.email')}
                       </h4>
-                      <a
-                        href="mailto:info@klz-cables.com"
+                      <ObfuscatedEmail
+                        email="info@klz-cables.com"
                         className="text-sm md:text-lg text-text-secondary hover:text-primary transition-colors font-medium touch-target"
-                      >
-                        info@klz-cables.com
-                      </a>
+                      />
                     </div>
                   </div>
                 </address>

app/[locale]/products/[...slug]/page.tsx

@@ -322,6 +322,8 @@ export default async function ProductPage({ params }: ProductPageProps) {
     }
   }
 
+  console.log(`[DEBUG PAGE] Slug: ${productSlug}, children count: ${descriptionChildren.length}`);
+
   const descriptionContent = {
     root: {
       ...product.content.root,
@@ -353,29 +355,31 @@ export default async function ProductPage({ params }: ProductPageProps) {
         categories={product.frontmatter.categories}
         sku={product.frontmatter.sku}
       />
-      <section className="relative pt-40 pb-24 overflow-hidden bg-primary-dark">
+      <section className="relative pt-28 md:pt-40 pb-12 md:pb-24 overflow-hidden bg-primary-dark">
         {/* Background Decorative Elements */}
         <div className="absolute top-0 right-0 w-1/2 h-full bg-gradient-to-l from-accent/5 to-transparent pointer-events-none" />
         <div className="absolute -top-24 -right-24 w-96 h-96 bg-accent/10 rounded-full blur-3xl pointer-events-none" />
 
         <Container className="relative z-10">
           <div className="max-w-4xl animate-slide-up">
-            <nav className="flex items-center mb-12 text-white/40 text-[10px] font-black uppercase tracking-[0.2em]">
+            <nav className="flex flex-wrap items-center gap-y-1 mb-6 md:mb-12 text-white/40 text-[10px] font-black uppercase tracking-[0.2em]">
               <Link
                 href={`/${locale}/${productsSlug}`}
-                className="hover:text-accent transition-colors"
+                className="hover:text-accent transition-colors shrink-0"
               >
                 {t.has('breadcrumb') ? t('breadcrumb') : 'Products'}
               </Link>
-              <span className="mx-4 opacity-20">/</span>
+              <span className="mx-2 md:mx-4 opacity-20">/</span>
               <Link
                 href={`/${locale}/${productsSlug}/${categorySlug}`}
-                className="hover:text-accent transition-colors"
+                className="hover:text-accent transition-colors shrink-0 max-w-[140px] truncate"
               >
                 {categoryTitle}
               </Link>
-              <span className="mx-4 opacity-20">/</span>
-              <span className="text-white/90">{product.frontmatter.title}</span>
+              <span className="mx-2 md:mx-4 opacity-20">/</span>
+              <span className="text-white/90 truncate max-w-[140px] md:max-w-none">
+                {product.frontmatter.title}
+              </span>
             </nav>
 
             <div className="flex flex-col lg:flex-row lg:items-center justify-between gap-12">
@@ -386,7 +390,7 @@ export default async function ProductPage({ params }: ProductPageProps) {
                     {t('englishVersion')}
                   </div>
                 )}
-                <div className="flex flex-wrap gap-3 mb-8">
+                <div className="flex flex-wrap gap-2 mb-4 md:mb-8">
                   {product.frontmatter.categories.map((cat, idx) => (
                     <Badge
                       key={idx}
@@ -397,10 +401,10 @@ export default async function ProductPage({ params }: ProductPageProps) {
                     </Badge>
                   ))}
                 </div>
-                <Heading level={1} className="text-white mb-8 uppercase">
+                <Heading level={1} className="text-white mb-4 md:mb-8 uppercase">
                   {product.frontmatter.title}
                 </Heading>
-                <p className="text-xl md:text-2xl text-white/60 max-w-2xl leading-relaxed font-medium">
+                <p className="text-base md:text-xl lg:text-2xl text-white/60 max-w-2xl leading-relaxed font-medium">
                   {product.frontmatter.description}
                 </p>
               </div>
@@ -414,11 +418,11 @@ export default async function ProductPage({ params }: ProductPageProps) {
           {/* Large Product Image Section */}
           {product.frontmatter.images && product.frontmatter.images.length > 0 && (
             <div
-              className="relative -mt-32 mb-32 animate-slide-up"
+              className="relative md:-mt-32 mb-8 md:mb-32 animate-slide-up"
               style={{ animationDelay: '200ms' }}
             >
-              <div className="bg-white shadow-[0_32px_64px_-12px_rgba(0,0,0,0.1)] rounded-[48px] border border-neutral-dark/5 overflow-hidden p-12 md:p-20 lg:p-24">
-                <div className="relative w-full aspect-[21/9]">
+              <div className="bg-white shadow-[0_32px_64px_-12px_rgba(0,0,0,0.1)] rounded-[24px] md:rounded-[48px] border border-neutral-dark/5 overflow-hidden p-6 md:p-20 lg:p-24">
+                <div className="relative w-full aspect-[4/3] md:aspect-[21/9]">
                   <Image
                     src={product.frontmatter.images[0]}
                     alt={product.frontmatter.title}
@@ -453,10 +457,10 @@ export default async function ProductPage({ params }: ProductPageProps) {
             </div>
           )}
 
-          <div className="grid grid-cols-1 lg:grid-cols-12 gap-12 lg:gap-20">
+          <div className="grid grid-cols-1 lg:grid-cols-12 gap-8 lg:gap-20">
             {/* Description Area Next to Sidebar */}
             <div className="lg:col-span-8">
-              <div className="max-w-none prose prose-primary prose-lg md:prose-xl mb-16 pb-16 border-b border-neutral-dark/5">
+              <div className="max-w-none prose prose-primary prose-base md:prose-lg xl:prose-xl mb-8 md:mb-16 pb-8 md:pb-16 border-b border-neutral-dark/5">
                 {descriptionChildren.length > 0 ? (
                   <PayloadRichText data={descriptionContent} />
                 ) : product.frontmatter.description ? (
@@ -464,6 +468,12 @@ export default async function ProductPage({ params }: ProductPageProps) {
                     {product.frontmatter.description}
                   </p>
                 ) : null}
+
+                {product.application?.root?.children?.length > 0 && (
+                  <div className="mt-12">
+                    <PayloadRichText data={product.application} />
+                  </div>
+                )}
               </div>
             </div>
 
@@ -472,7 +482,7 @@ export default async function ProductPage({ params }: ProductPageProps) {
           </div>
 
           {/* Full-width Technical Data Below */}
-          <div className="mt-16 pt-16 border-t-0">
+          <div className="mt-8 md:mt-16 pt-8 md:pt-16 border-t-0">
             <div className="max-w-none prose prose-primary prose-lg md:prose-xl">
               <PayloadRichText data={technicalContent} />
             </div>
@@ -530,7 +540,7 @@ export default async function ProductPage({ params }: ProductPageProps) {
           </div>
 
           {/* Related Products Section */}
-          <div className="mt-16 pt-16 border-t border-neutral-dark/5">
+          <div className="mt-10 md:mt-16 pt-10 md:pt-16 border-t border-neutral-dark/5">
             <RelatedProducts
               currentSlug={productSlug}
               categories={product.frontmatter.categories}

app/[locale]/products/page.tsx

@@ -1,5 +1,4 @@
 import Reveal from '@/components/Reveal';
-import Scribble from '@/components/Scribble';
 import { Badge, Button, Card, Container, Heading, Section } from '@/components/ui';
 import { getTranslations, setRequestLocale } from 'next-intl/server';
 import { Metadata } from 'next';
@@ -95,7 +94,7 @@ export default async function ProductsPage({ params }: ProductsPageProps) {
   return (
     <div className="flex flex-col min-h-screen bg-neutral-light">
       {/* Hero Section */}
-      <section className="relative min-h-[50vh] md:min-h-[70vh] flex items-center pt-32 pb-20 md:pt-40 md:pb-32 overflow-hidden bg-primary-dark">
+      <section className="relative flex items-center pt-32 pb-16 md:pt-40 md:pb-24 overflow-hidden bg-primary-dark">
         <Container className="relative z-10">
           <div className="max-w-4xl animate-slide-up">
             <Badge
@@ -106,15 +105,7 @@ export default async function ProductsPage({ params }: ProductsPageProps) {
             </Badge>
             <Heading level={1} className="text-white mb-4 md:mb-8">
               {t.rich('title', {
-                green: (chunks) => (
-                  <span className="relative inline-block">
-                    <span className="relative z-10 text-accent italic">{chunks}</span>
-                    <Scribble
-                      variant="circle"
-                      className="w-[140%] h-[140%] -top-[20%] -left-[20%] text-accent/30 hidden md:block"
-                    />
-                  </span>
-                ),
+                green: (chunks) => <span className="text-accent italic">{chunks}</span>,
               })}
             </Heading>
             <p className="text-lg md:text-xl text-white/70 leading-relaxed max-w-2xl mb-8 md:mb-12 line-clamp-2 md:line-clamp-none">
@@ -223,7 +214,7 @@ export default async function ProductsPage({ params }: ProductsPageProps) {
               <div className="absolute top-0 right-0 w-1/2 h-full bg-accent/5 -skew-x-12 translate-x-1/4" />
               <div className="relative z-10 flex flex-col lg:flex-row items-center justify-between gap-6 md:gap-12">
                 <div className="max-w-2xl text-center lg:text-left">
-                  <h2 className="text-2xl md:text-5xl lg:text-6xl font-bold text-white mb-4 md:mb-8 tracking-tight">
+                  <h2 className="text-2xl md:text-4xl font-bold text-white mb-4 md:mb-8 tracking-tight">
                     {t('cta.title')}
                   </h2>
                   <p className="text-base md:text-xl text-white/70 leading-relaxed">

app/[locale]/team/page.tsx

@@ -122,12 +122,12 @@ export default async function TeamPage({ params }: TeamPageProps) {
               <Badge variant="accent" className="mb-4 md:mb-8">
                 {t('michael.role')}
               </Badge>
-              <Heading level={2} className="text-white mb-6 md:mb-10 text-3xl md:text-5xl">
+              <Heading level={2} className="text-white mb-6 md:mb-10 text-2xl md:text-4xl">
                 <span className="text-white">{t('michael.name')}</span>
               </Heading>
               <div className="relative mb-6 md:mb-12">
                 <div className="absolute -left-4 md:-left-8 top-0 bottom-0 w-1 md:w-1.5 bg-accent rounded-full" />
-                <p className="text-lg md:text-2xl font-bold italic leading-relaxed pl-5 md:pl-8 text-white/90">
+                <p className="text-base md:text-xl font-bold italic leading-relaxed pl-5 md:pl-8 text-white/90">
                   {t('michael.quote')}
                 </p>
               </div>
@@ -156,6 +156,7 @@ export default async function TeamPage({ params }: TeamPageProps) {
               alt={t('michael.name')}
               fill
               className="object-cover scale-105 hover:scale-100 transition-transform duration-1000"
+              quality={100}
               sizes="(max-width: 1024px) 100vw, 50vw"
             />
             <div className="absolute inset-0 bg-gradient-to-t from-primary-dark/60 lg:bg-gradient-to-r lg:from-primary-dark/20 to-transparent" />
@@ -225,6 +226,7 @@ export default async function TeamPage({ params }: TeamPageProps) {
               alt={t('klaus.name')}
               fill
               className="object-cover scale-105 hover:scale-100 transition-transform duration-1000"
+              quality={100}
               sizes="(max-width: 1024px) 100vw, 50vw"
             />
             <div className="absolute inset-0 bg-gradient-to-t from-white/60 lg:bg-gradient-to-l lg:from-primary-dark/20 to-transparent" />
@@ -235,12 +237,12 @@ export default async function TeamPage({ params }: TeamPageProps) {
               <Badge variant="saturated" className="mb-4 md:mb-8">
                 {t('klaus.role')}
               </Badge>
-              <Heading level={2} className="text-saturated mb-6 md:mb-10 text-3xl md:text-6xl">
+              <Heading level={2} className="text-saturated mb-6 md:mb-10 text-2xl md:text-4xl">
                 {t('klaus.name')}
               </Heading>
               <div className="relative mb-6 md:mb-12">
                 <div className="absolute -left-4 md:-left-8 top-0 bottom-0 w-1 md:w-1.5 bg-saturated rounded-full" />
-                <p className="text-lg md:text-3xl font-bold italic leading-relaxed pl-5 md:pl-8 text-text-secondary">
+                <p className="text-base md:text-xl font-bold italic leading-relaxed pl-5 md:pl-8 text-text-secondary">
                   {t('klaus.quote')}
                 </p>
               </div>

app/actions/contact.ts

@@ -72,6 +72,7 @@ export async function sendContactFormAction(formData: FormData) {
     ? `Product Inquiry: ${productName}`
     : 'New Contact Form Submission';
   const confirmationSubject = 'Thank you for your inquiry';
+  const isTestSubmission = email === 'testing@mintel.me';
 
   try {
     // 2a. Send notification to Mintel/Client
@@ -84,26 +85,30 @@ export async function sendContactFormAction(formData: FormData) {
       }),
     );
 
-    const notificationResult = await sendEmail({
-      replyTo: email,
-      subject: notificationSubject,
-      html: notificationHtml,
-    });
-
-    if (notificationResult.success) {
-      logger.info('Notification email sent successfully', {
-        messageId: notificationResult.messageId,
-      });
-    } else {
-      logger.error('Notification email FAILED', {
-        error: notificationResult.error,
+    if (!isTestSubmission) {
+      const notificationResult = await sendEmail({
+        replyTo: email,
         subject: notificationSubject,
-        email,
+        html: notificationHtml,
       });
-      services.errors.captureException(
-        new Error(`Notification email failed: ${notificationResult.error}`),
-        { action: 'sendContactFormAction_notification', email },
-      );
+
+      if (notificationResult.success) {
+        logger.info('Notification email sent successfully', {
+          messageId: notificationResult.messageId,
+        });
+      } else {
+        logger.error('Notification email FAILED', {
+          error: notificationResult.error,
+          subject: notificationSubject,
+          email,
+        });
+        services.errors.captureException(
+          new Error(`Notification email failed: ${notificationResult.error}`),
+          { action: 'sendContactFormAction_notification', email },
+        );
+      }
+    } else {
+      logger.info('Skipping notification email for test submission', { email });
     }
 
     // 2b. Send confirmation to Customer (branded as KLZ Cables)
@@ -115,26 +120,30 @@ export async function sendContactFormAction(formData: FormData) {
       }),
     );
 
-    const confirmationResult = await sendEmail({
-      to: email,
-      subject: confirmationSubject,
-      html: confirmationHtml,
-    });
-
-    if (confirmationResult.success) {
-      logger.info('Confirmation email sent successfully', {
-        messageId: confirmationResult.messageId,
-      });
-    } else {
-      logger.error('Confirmation email FAILED', {
-        error: confirmationResult.error,
-        subject: confirmationSubject,
+    if (!isTestSubmission) {
+      const confirmationResult = await sendEmail({
         to: email,
+        subject: confirmationSubject,
+        html: confirmationHtml,
       });
-      services.errors.captureException(
-        new Error(`Confirmation email failed: ${confirmationResult.error}`),
-        { action: 'sendContactFormAction_confirmation', email },
-      );
+
+      if (confirmationResult.success) {
+        logger.info('Confirmation email sent successfully', {
+          messageId: confirmationResult.messageId,
+        });
+      } else {
+        logger.error('Confirmation email FAILED', {
+          error: confirmationResult.error,
+          subject: confirmationSubject,
+          to: email,
+        });
+        services.errors.captureException(
+          new Error(`Confirmation email failed: ${confirmationResult.error}`),
+          { action: 'sendContactFormAction_confirmation', email },
+        );
+      }
+    } else {
+      logger.info('Skipping confirmation email for test submission', { email });
     }
 
     // Notify via Gotify (Internal)