Update style.css

style.css

@@ -27,7 +27,7 @@ body {
 
 .hero {
     height: 100vh;
-    background-image: url("images/background.jpg"); /* Replace with your background image path */
+     background-image: url('https://source.unsplash.com/1600x900/?developer'); /* Replace with your background image path */
     background-position: center;
     background-size: cover;
     color: #fff;