refactor: update primary color variables and adjust styles in dashboard and login pages

views/auth/login.ejs

@@ -14,9 +14,9 @@
   <!-- Custom CSS -->
   <style>
     :root {
-      --primary-color: #2563eb;
-      --primary-light: #3b82f6;
-      --primary-dark: #1d4ed8;
+      --primary-color: #0a2347;
+      --primary-light: #0a2347;
+      --primary-dark: #0a2347;
       --text-on-primary: #ffffff;
     }
 
@@ -117,7 +117,7 @@
     }
 
     .btn-shine {
-      background: linear-gradient(90deg, #1d4ed8, #2563eb, #3b82f6, #60a5fa);
+      background: #0a2347;
       color: white;
       border: none;
       padding: 12px 30px;