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apps/admin/src/app/layouts/03__CompactSidebar/README.md

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+# Compact Sidebar layout
+
+**Metronic 9 reference:** [Demo 3](https://keenthemes.com/metronic/tailwind/react/demo3)
+
+A narrow icon rail listing the top-level menu sections, with the selected section's children on a
+horizontal navbar above the content card.
+
+## Composition
+
+| Piece                       | Source                                                       |
+| --------------------------- | ------------------------------------------------------------ |
+| Section chooser (icon rail) | `useAppMenu` + `firstMenuPath` from `../shared`              |
+| Section navbar              | `NavMenubar` from `../shared`, fed by `useActiveMenuSection` |
+| Mobile menu (sheet)         | `SidebarAccordionMenu` from `../shared`                      |
+| Toolbar and breadcrumbs     | `Toolbar` / `ToolbarHeading` from `../shared`                |
+| Footer                      | `AppFooter` from `../shared`                                 |
+| Account menu                | `UserAvatarMenu` from `../shared`                            |
+
+Layout-specific: `Header`, `HeaderLogo`, `Sidebar`, `SidebarMenu`, `Navbar`.
+
+## Notes
+
+- A section with no children renders no navbar, so a single-page section such as the dashboard fills
+  the card.
+- This layout sets `container` to `fluid`; the setting is per-layout, so other layouts keep theirs.
+- Body variables: `--header-height: 58px`, `--sidebar-width: 58px`, `--navbar-height: 56px`.