fix style

static/style.css

@@ -1,19 +1,17 @@
 body {
   font-family: Arial, sans-serif;
-  background-color: #f0f8ff;
+  background-color: #f4f4f9;
   color: #333;
   text-align: center;
-  margin: 0;
-  padding: 0;
 }
 
 .container {
-  max-width: 600px;
   margin: 50px auto;
+  max-width: 600px;
   padding: 20px;
-  background-color: #ffffff;
+  background: #fff;
   border-radius: 8px;
-  box-shadow: 0 0 15px rgba(0, 0, 0, 0.1);
+  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
 }
 
 h1 {
@@ -21,24 +19,27 @@ h1 {
 }
 
 form {
-  margin-top: 20px;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
 }
 
 label {
   font-weight: bold;
+  margin-top: 10px;
 }
 
-select, button {
-  padding: 10px;
+select, input, button {
   margin-top: 10px;
+  padding: 10px;
+  width: 80%;
   border-radius: 5px;
   border: 1px solid #ccc;
-  width: 100%;
 }
 
 button {
   background-color: #0073e6;
-  color: #fff;
+  color: white;
   cursor: pointer;
 }
 
@@ -46,9 +47,20 @@ button:hover {
   background-color: #005bb5;
 }
 
-.result {
-  margin-top: 30px;
-  padding: 20px;
+.results {
+  margin-top: 20px;
+  padding: 15px;
   background-color: #f9f9f9;
-  border-radius: 8px;
+  border-radius: 5px;
+}
+
+.line {
+  margin: 5px 0;
+  font-size: 16px;
+}
+
+.error {
+  color: red;
+  font-weight: bold;
+  margin-top: 10px;
 }