feat: added nav adaptive

assets/js/nav.js

@@ -0,0 +1,20 @@
+const burger = document.querySelector('.header__burger');
+const headerNav = document.querySelector('.header__nav');
+
+if (burger && headerNav) {
+  burger.addEventListener('click', () => {
+    headerNav.classList.toggle('active');
+    burger.classList.toggle('active');
+  });
+
+  headerNav.addEventListener('click', (event) => {
+    const isLink = event.target.classList.contains('header__nav-link');
+    const isPhone = event.target.classList.contains('header__nav-phone');
+    const isButton = event.target.classList.contains('button');
+
+    if (isLink || isPhone || isButton) {
+      headerNav.classList.remove('active');
+      burger.classList.remove('active');
+    }
+  });
+}