feat: redesign hero banner with glassmorphism and animated glow bubbles

- Replace gradient background with light pastel bubbles on #f8fafc
- Add 4 animated glow bubbles (blue, green, yellow, red) with radial gradients
- Implement glassmorphism card for hero content with backdrop-filter
- Add floating corner animations and center pulse animation
- Update logo to colorful variant
- Remove white text classes, use dark slate for readability

src/components/NavBar.vue

@@ -163,3 +163,4 @@
      }
   }
  </script>
+