fix(ui): make Justine palette visible on marketing + trim rainbow chrome

- Replace blue/purple gradients with ink gradient text and cream/parch CTA surface
- Step badges and transformation icons use primary (ink) fills
- /features page icons unified to text-primary; Lora section titles
- Tree view status colors use semantic tokens instead of blue/green

Made-with: Cursor

marketing/components/cta.tsx

@@ -7,8 +7,8 @@ export function CTA() {
   return (
     <section className="w-full py-16 md:py-24">
       <div className="container mx-auto px-6">
-        <div className="mx-auto flex max-w-[980px] flex-col items-center gap-6 rounded-2xl border bg-gradient-to-br from-blue-50 to-purple-50 dark:from-blue-950/20 dark:to-purple-950/20 p-12 md:p-16">
-        <h2 className="text-2xl font-bold leading-tight tracking-tight md:text-4xl lg:text-5xl text-center max-w-[800px]">
+        <div className="vibn-cta-surface mx-auto flex max-w-[980px] flex-col items-center gap-6 rounded-2xl border border-border p-12 md:p-16">
+        <h2 className="font-serif text-2xl font-semibold leading-tight tracking-tight md:text-4xl lg:text-5xl text-center max-w-[800px]">
           {homepage.finalCTA.title}
         </h2>
         <div className="flex flex-col sm:flex-row gap-4 pt-4">