Refactor HTML structure and styles

Author: LinuxDEdeveloper

index.html

@@ -6,7 +6,7 @@
     <title>ORBIT OS - The Linux Distro</title>
     <style>
         :root {
-            --bg-dark: #0a0f14;
+            --bg-dark: #0a1f14;
             --bg-card: #161e27;
             --primary-green: #2ecc71;
             --primary-blue: #3498db;