nice

static/style.css

@@ -159,11 +159,45 @@ li a {
   gap: 10px;
 }
 
+details {
+    width: 100%;
+    max-width: 600px;
+    margin-top: 20px;
+    background-color: var(--surface-color);
+    border-radius: var(--border-radius);
+    border: 1px solid #333;
+}
+
+summary {
+    padding: 15px;
+    cursor: pointer;
+    font-weight: bold;
+    color: var(--secondary-color);
+    list-style: none; /* Hide default triangle */
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+}
+
+summary::after {
+    content: '+';
+    font-size: 1.2rem;
+}
+
+details[open] summary::after {
+    content: '-';
+}
+
+details[open] summary {
+    border-bottom: 1px solid #333;
+}
+
 .route-list {
-  display: grid;
-  gap: 10px;
-  width: 100%;
-  max-width: 600px;
+    display: grid;
+    gap: 10px;
+    width: 100%;
+    padding: 15px;
+    box-sizing: border-box;
 }
 
 .route-item {