style: final polish for design overhaul

Fixed all compilation errors, improved responsive layout, added missing icons, and refined animations for a perfect user experience.

lib/utils.ts

@@ -1,7 +1,17 @@
+import { clsx, type ClassValue } from "clsx";
+import { twMerge } from "tailwind-merge";
+
 /**
  * Utility functions for the application
  */
 
+/**
+ * Combine tailwind classes safely
+ */
+export function cn(...inputs: ClassValue[]) {
+  return twMerge(clsx(inputs));
+}
+
 /**
  * Debounce helper to prevent duplicate function calls
  * @param func - The function to debounce