diff --git a/relay/ui/style.css b/relay/ui/style.css
index 83a6fce..bcfa28a 100644
--- a/relay/ui/style.css
+++ b/relay/ui/style.css
@@ -232,6 +232,14 @@ label.checkbox input[type="checkbox"] { accent-color:var(--accent); cursor:point
 #view-compose:not(.hidden) {
     display: flex; flex-direction: column; gap: 16px;
 }
+/* Same 16 px rhythm between inbox / shared / sent on mobile as
+   between compose and inbox — desktop re-declares this inside the
+   grid rule further down. */
+#compose-sidebar {
+    display: flex;
+    flex-direction: column;
+    gap: 16px;
+}
 .compose-attachments {
     display: flex; flex-wrap: wrap; gap: 6px; min-height: 0;
 }