diff --git a/frontend/src/views/PredefinedActivities.vue b/frontend/src/views/PredefinedActivities.vue
index f2253f9..e6604ba 100644
--- a/frontend/src/views/PredefinedActivities.vue
+++ b/frontend/src/views/PredefinedActivities.vue
@@ -206,12 +206,14 @@ export default {
   display: grid;
   grid-template-columns: 320px 1fr;
   gap: 1rem;
+  height: calc(100vh - 170px);
 }
 .list {
   background: white;
   border: 1px solid var(--border-color);
   border-radius: var(--border-radius);
   padding: 0.5rem;
+  overflow: auto;
 }
 .toolbar {
   display: flex;
@@ -238,6 +240,11 @@ select { max-width: 220px; }
   border: 1px solid var(--border-color);
   border-radius: var(--border-radius);
   padding: 0.75rem;
+  position: sticky;
+  top: 0;
+  align-self: start;
+  max-height: calc(100vh - 170px);
+  overflow: auto;
 }
 label { display: block; margin-bottom: 0.5rem; }
 input[type="text"], input[type="number"], textarea { width: 100%; }