Update public/style.css

public/style.css

@@ -36,4 +36,18 @@ button {
 
 button:hover {
   background: #1557b0;
+}
+
+.result-box {
+  padding: 20px;
+  background: #f8f9fa;
+  border-radius: 5px;
+  margin: 20px 0;
+}
+
+.error-box {
+  background: #ffe3e3;
+  color: #dc3545;
+  padding: 20px;
+  border-radius: 5px;
 }