add theme to login

src/app/pages/login/login.page.scss

@@ -9,7 +9,7 @@ ion-content{
 }
 
 .main-wrapper{
-    background: linear-gradient(180deg, #42B9FE 0%, #0782C9 100%)  !important;
+    background: var(--login-background);
     display: flex;
     width: 100vw;
     height: 100vh;
@@ -101,14 +101,13 @@ ion-item{
     border-radius: 22.5px;
     margin: 10px 0 10px 0;
 }
+
 .btn-login{
     font-size: 16px;
-  }
-
-
-
-
-
+}
+.btn-login:hover{
+    background-color: var(--button-hover);;
+}
 
 .div-top-header{
   margin: 0 em(20px);
@@ -128,7 +127,6 @@ ion-item{
 }
 
 
-
 .circle{
     color: white;
     width: 70px;