Revamp index.html with Bootstrap and Tailwind CSS integration, add navigation and main content structure, and implement JavaScript for interactivity. Remove unused style.css file.

js/script.js

@@ -0,0 +1,20 @@
+// Add fade-in animation to main content
+document.addEventListener('DOMContentLoaded', () => {
+    const mainContent = document.querySelector('main');
+    mainContent.classList.add('fade-in');
+
+    // Add click event to the Learn More button
+    const learnMoreBtn = document.querySelector('.btn-primary');
+    learnMoreBtn.addEventListener('click', () => {
+        alert('Thanks for your interest! This is a demo website.');
+    });
+
+    // Add active class to current nav item
+    const navLinks = document.querySelectorAll('.nav-link');
+    navLinks.forEach(link => {
+        link.addEventListener('click', (e) => {
+            navLinks.forEach(l => l.classList.remove('active'));
+            e.target.classList.add('active');
+        });
+    });
+});