fix: product texts, mobile nav background, mobile product page layout

- Fix PayloadRichText: migrate custom JSX converters to Lexical v3 nodesToJSX API
  - paragraph, heading, list, listitem, quote, link converters now use nodesToJSX
  - Resolves missing product texts since PayloadCMS migration
- Fix mobile navigation: move overlay outside <header> to prevent fixed-position clipping
  - Header transform/backdrop-filter was containing the fixed overlay
  - Use bg-primary/95 backdrop-blur-3xl for premium blue background
- Fix product image mobile layout: use md:-mt-32 responsive prefix
  - Negative margin only applies on md+ to avoid overlap on mobile
- Improve mobile product page UX:
  - Breadcrumbs: flex-wrap, truncate, reduced separator spacing
  - Hero: reduced top padding pt-28 on mobile
  - Product image card: 4/3 aspect ratio and smaller padding on mobile
  - Section spacing: use responsive md: prefixes throughout
  - Data tables: 2-col grid on mobile, smaller card padding/radius
  - Tables: add right-edge scroll hint gradient on mobile

components/PayloadRichText.tsx

@@ -39,95 +39,17 @@ import CTA from '@/components/home/CTA';
 const jsxConverters: JSXConverters = {
   ...defaultJSXConverters,
   // Let the default converters handle text nodes to preserve valid formatting
-  // If the text node contains raw HTML (from messy migrations), render it as HTML instead of escaping it
-  text: ({ node }: any) => {
-    const text = node.text;
-    // Handle markdown-style lists embedded in text nodes from Markdown migration
-    if (text && text.includes('\n- ')) {
-      const parts = text.split('\n- ').filter((p: string) => p.trim() !== '');
-      // If first part doesn't start with "- ", it's a prefix paragraph
-      const startsWithDash = text.trimStart().startsWith('- ');
-      const prefix = startsWithDash ? null : parts.shift();
-      return (
-        <div className="my-4">
-          {prefix && (
-            <div dangerouslySetInnerHTML={prefix.includes('<') ? { __html: prefix } : undefined}>
-              {!prefix.includes('<') ? prefix : undefined}
-            </div>
-          )}
-          <ul className="list-disc pl-6 my-4 space-y-2">
-            {parts.map((item: string, i: number) => {
-              const cleanItem = item.trim();
-              if (cleanItem.includes('<')) {
-                return <li key={i} dangerouslySetInnerHTML={{ __html: cleanItem }} />;
-              }
-              return <li key={i}>{cleanItem}</li>;
-            })}
-          </ul>
-        </div>
-      );
-    }
-
-    if (text && (text.includes('<') || text.includes('data-start'))) {
-      return <span dangerouslySetInnerHTML={{ __html: text }} />;
-    }
-
-    // Handle markdown-style links [text](url) from Markdown migration
-    if (text && /\[([^\]]+)\]\(([^)]+)\)/.test(text)) {
-      const parts: React.ReactNode[] = [];
-      const remaining = text;
-      let key = 0;
-      const linkRegex = /\[([^\]]+)\]\(([^)]+)\)/g;
-      let match;
-      let lastIndex = 0;
-      while ((match = linkRegex.exec(remaining)) !== null) {
-        if (match.index > lastIndex) {
-          parts.push(<span key={key++}>{remaining.slice(lastIndex, match.index)}</span>);
-        }
-        parts.push(
-          <a
-            key={key++}
-            href={match[2]}
-            target="_blank"
-            rel="noopener noreferrer"
-            className="text-primary underline decoration-primary/30 hover:decoration-primary transition-colors"
-          >
-            {match[1]}
-          </a>,
-        );
-        lastIndex = match.index + match[0].length;
-      }
-      if (lastIndex < remaining.length) {
-        parts.push(<span key={key++}>{remaining.slice(lastIndex)}</span>);
-      }
-      return <>{parts}</>;
-    }
-
-    // Handle newlines in text nodes — convert to <br> for proper line breaks
-    if (text && text.includes('\n')) {
-      const lines = text.split('\n');
-      return (
-        <>
-          {lines.map((line: string, i: number) => (
-            <span key={i}>
-              {line}
-              {i < lines.length - 1 && <br />}
-            </span>
-          ))}
-        </>
-      );
-    }
-
-    if (node.format === 1) return <strong key="bold">{text}</strong>;
-    if (node.format === 2) return <em key="italic">{text}</em>;
-    return <span key="text">{text}</span>;
-  },
   // Use div instead of p for paragraphs to allow nested block elements (like the lists above)
-  paragraph: ({ children }: any) => (
-    <div className="mb-6 leading-relaxed text-text-secondary">{children}</div>
-  ),
+  paragraph: ({ node, nodesToJSX }: any) => {
+    return (
+      <div className="mb-6 leading-relaxed text-text-secondary">
+        {nodesToJSX({ nodes: node.children })}
+      </div>
+    );
+  },
   // Scale headings to prevent multiple H1s (H1 -> H2, etc) and style natively
-  heading: ({ node, children }: any) => {
+  heading: ({ node, nodesToJSX }: any) => {
+    const children = nodesToJSX({ nodes: node.children });
     const tag = node?.tag;
     if (tag === 'h1')
       return (
@@ -151,7 +73,8 @@ const jsxConverters: JSXConverters = {
       );
     return <h6 className="text-base font-bold mt-6 mb-4 text-text-primary">{children}</h6>;
   },
-  list: ({ node, children }: any) => {
+  list: ({ node, nodesToJSX }: any) => {
+    const children = nodesToJSX({ nodes: node.children });
     if (node?.listType === 'number') {
       return (
         <ol className="list-decimal pl-6 my-6 space-y-2 text-text-secondary marker:text-primary marker:font-bold">
@@ -168,7 +91,8 @@ const jsxConverters: JSXConverters = {
       </ul>
     );
   },
-  listitem: ({ node, children }: any) => {
+  listitem: ({ node, nodesToJSX }: any) => {
+    const children = nodesToJSX({ nodes: node.children });
     if (node?.checked != null) {
       return (
         <li className="flex items-center gap-3 mb-2 leading-relaxed">
@@ -184,12 +108,16 @@ const jsxConverters: JSXConverters = {
     }
     return <li className="mb-2 leading-relaxed">{children}</li>;
   },
-  quote: ({ children }: any) => (
-    <blockquote className="border-l-4 border-primary bg-primary/5 rounded-r-2xl pl-6 py-4 my-8 italic text-text-secondary shadow-sm">
-      {children}
-    </blockquote>
-  ),
-  link: ({ node, children }: any) => {
+  quote: ({ node, nodesToJSX }: any) => {
+    const children = nodesToJSX({ nodes: node.children });
+    return (
+      <blockquote className="border-l-4 border-primary bg-primary/5 rounded-r-2xl pl-6 py-4 my-8 italic text-text-secondary shadow-sm">
+        {children}
+      </blockquote>
+    );
+  },
+  link: ({ node, nodesToJSX }: any) => {
+    const children = nodesToJSX({ nodes: node.children });
     // Handling Payload CMS link nodes
     const href = node?.fields?.url || node?.url || '#';
     const newTab = node?.fields?.newTab || node?.newTab;
@@ -1090,6 +1018,10 @@ export default function PayloadRichText({
 
   if (!data) return null;
 
+  if (data.root?.children?.length > 0) {
+    console.log('[PayloadRichText DEBUG] received children', data.root.children.length);
+  }
+
   const dynamicConverters: JSXConverters = {
     ...jsxConverters,
     blocks: {