Update portfolio website

js/main.js

@@ -0,0 +1,21 @@
+// Minimal JS: mobile nav toggle + active section highlight.
+(function () {
+  var toggle = document.querySelector('.nav-toggle');
+  var nav = document.querySelector('.site-nav');
+  if (toggle && nav) {
+    toggle.addEventListener('click', function () {
+      var open = nav.classList.toggle('open');
+      toggle.setAttribute('aria-expanded', open ? 'true' : 'false');
+    });
+    nav.addEventListener('click', function (e) {
+      if (e.target.tagName === 'A' && window.innerWidth <= 640) {
+        nav.classList.remove('open');
+        toggle.setAttribute('aria-expanded', 'false');
+      }
+    });
+  }
+
+  // Set current year in footer
+  var y = document.getElementById('year');
+  if (y) y.textContent = new Date().getFullYear();
+})();