Fairly overkill AngularJS + RequireJS UI for the mock login screen.

app/auth/scripts/routes.js

@@ -0,0 +1,17 @@
+define(['./app'], function(app) {
+  return app.config([
+      '$routeProvider'
+    , '$locationProvider'
+    , function($routeProvider, $locationProvider) {
+        $locationProvider.html5Mode(true)
+        $routeProvider
+          .when('/', {
+            templateUrl: 'partials/signin'
+          , controller: 'SignInCtrl'
+          })
+          .otherwise({
+            redirectTo: '/'
+          })
+      }
+  ])
+})