diff --git a/NucleicRemote/NucleicRemote/Views/ProjectsView.swift b/NucleicRemote/NucleicRemote/Views/ProjectsView.swift
index ab203e2..1cb4845 100644
--- a/NucleicRemote/NucleicRemote/Views/ProjectsView.swift
+++ b/NucleicRemote/NucleicRemote/Views/ProjectsView.swift
@@ -71,8 +71,8 @@ struct ProjectDetailView: View {
         .navigationTitle(project.name)
         .navigationBarTitleDisplayMode(.inline)
         .scrollDismissesKeyboard(.interactively)
-        // A floating "+" scoped to this project — the glass composer sheet opens pre-locked to it,
-        // replacing the old inline start-chat card at the top of the page.
-        .newChatAffordance(project: project, isPresented: $showNewChat)
+        // A floating "+" scoped to this project — the glass composer opens pre-locked to it. Only
+        // at regular width; on compact the shared tab-bar "+" (project picker) covers new chats.
+        .newChatAffordance(project: project, isPresented: $showNewChat, enabled: sizeClass == .regular)
     }
 }