Sidebar 15 block design & features
Sidebar15 is a left-rail app shell built with Shadcn UI. The header holds the workspace switcher and a search field. Labeled groups list Overview, Projects, Team, and Workspace. Parents that have children show a downward chevron and open a dropdown under the row instead of an indented submenu or a side panel. The footer is the usual user row with avatar and account menu. The main column keeps the collapse trigger, breadcrumbs, and muted canvas.
Color and spacing stay in the default sidebar register. The dropdown is a compact floating menu with icon-and-label items, a little offset from the trigger. The rail itself never grows taller when a parent opens. Hairline separators and muted labels match the rest of the set. Motion is limited to the menu appearing.
The impression is a safe, familiar app nav. Using a dropdown for children is a common pattern and closer to a shadcn-default menu than the slide-out sibling. Complexity is simple to moderate and content-driven: same workspace, tree, and user data, with less layout machinery.
Dropdowns can still open when the rail is collapsed to icons, since they are not bound to the sidebar width.