Update static/css/style.css

static/css/style.css

@@ -1,6 +1,6 @@
 body {
     font-family: 'Roboto', sans-serif;
-    background-color: #f0f0f0;
+    background-color: linear-gradient(135deg,#f5f7fa 0%,#c3cfe2 100%);
     margin: 0;
     padding: 0;
     display: flex;