fix(perf): replace framer-motion with pure css animations in HeroSection to eliminate JS-induced 4.5s LCP delay

app/globals.css

@@ -87,3 +87,35 @@
   }
 }
 /* trigger rebuild */
+
+@layer utilities {
+  @keyframes hero-fade-in-up {
+    from {
+      opacity: 0;
+      transform: translateY(30px);
+    }
+    to {
+      opacity: 1;
+      transform: translateY(0);
+    }
+  }
+  
+  .animate-hero-fade-in-up {
+    animation: hero-fade-in-up 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
+  }
+}
+
+@layer utilities {
+  @keyframes hero-zoom-out {
+    from {
+      transform: scale(1.05);
+    }
+    to {
+      transform: scale(1);
+    }
+  }
+  
+  .animate-hero-zoom-out {
+    animation: hero-zoom-out 1.5s ease-out forwards;
+  }
+}