Fix: center content on regular pages

Author: nmahammad

_layouts/page.html

@@ -2,7 +2,7 @@
 layout: default
 ---
 
-<article>
+<article class="page-content">
     <h1 class="page-title">{{ page.title }}</h1>
     {{ content }}
 </article>

assets/css/style.css

@@ -277,4 +277,10 @@ footer {
   .page-title {
     font-size: 1.5rem;
   }
-}
+}
+/* Regular pages (not home) - centered content */
+.page-content {
+  max-width: 800px;
+  margin: 0 auto;
+  padding: 2rem 1rem;
+}