Remove root width constraints

Eliminated max-width and default padding on #root in App.css and added full-width rules in index.css to prevent beige side edges and allow hero background to span full viewport.

X-Lovable-Edit-ID: edt-9f685be6-9908-4736-8521-d1a25ed034b9

src/App.css

@@ -1,8 +1,8 @@
 #root {
-  max-width: 1280px;
+  max-width: none;
-  margin: 0 auto;
+  margin: 0;
-  padding: 2rem;
+  padding: 0;
-  text-align: center;
+  text-align: inherit;
 }
 
 .logo {

src/index.css

@@ -76,6 +76,14 @@
     font-family: var(--font-body);
   }
 
+  /* Ensure full-width layout (avoid template max-width/padding on #root) */
+  #root {
+    max-width: none;
+    margin: 0;
+    padding: 0;
+    text-align: inherit;
+  }
+
   h1, h2, h3, h4, h5, h6 {
     font-family: var(--font-display);
   }