update input box

static/style.css

@@ -46,3 +46,30 @@ button {
     color: white;
     align-self: flex-start;
 }
+
+input[type="text"] {
+    width: 100%;
+    padding: 10px;
+    margin: 10px 0;
+    border: 1px solid #ccc;
+    border-radius: 4px;
+    box-sizing: border-box;
+    transition: 0.3s;
+}
+
+input[type="text"]:focus {
+    border-color: #007BFF;
+    box-shadow: 0 0 5px rgba(0,123,255,0.5);
+}
+
+/* Placeholder style */
+input[type="text"]::placeholder {
+    color: #aaa;
+}
+
+/* If you'd like to style the API Key label as well */
+label {
+    display: block;
+    margin-bottom: 8px;
+    font-weight: bold;
+}