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

app/globals.css

@@ -8,6 +8,17 @@
 @keyframes vibn-breathe { 0%,100%{transform:scale(1)} 50%{transform:scale(1.15)} }
 .vibn-enter { animation: vibn-enter 0.35s ease both; }
 
+/* Marketing — Justine ink & parchment (no blue/purple chrome) */
+.vibn-gradient-text {
+  background-image: linear-gradient(90deg, var(--vibn-mid) 0%, var(--vibn-ink) 100%);
+  -webkit-background-clip: text;
+  background-clip: text;
+  color: transparent;
+}
+.vibn-cta-surface {
+  background-image: linear-gradient(to bottom right, var(--vibn-cream), var(--vibn-parch));
+}
+
 @theme inline {
   --color-background: var(--background);
   --color-foreground: var(--foreground);