# Design system (Fluksio)

`app` (dashboard SPA + API) and `index` (marketing site) are **separate
repos** that share one visual design. The full, canonical spec — palette,
radius, elevation, motion, component map, and shell patterns — lives in the
parent repo's [`DESIGN-GUIDELINES.md`](../DESIGN-GUIDELINES.md). Read it before
any UI work.

## Sync rule (read before touching tokens)

The `@theme inline`, `:root`, and `.dark` blocks in `app/frontend/src/index.css`
and `index/src/index.css` **must be kept byte-identical**, and
`frontend/src/lib/motion.ts` is duplicated verbatim. Any palette / radius /
elevation / motion-token change is made in *both* repos in the same change.
There is intentionally no shared npm package — the duplicated blocks are the
sync point. Components (`src/components/ui/*`) are copied per repo (the shadcn
model) and may diverge; only the tokens and motion presets must match.

Both repos share `components.json`: style `new-york`, `cssVariables: true`,
icon library `lucide`.

Verify with `make design-check` from the workspace root.

## Shell

The authenticated area is a `bg-card` region (`SidebarProvider`) with a floating
translucent `AppSidebar` (`variant="floating"`, `bg-card/80 backdrop-blur-md`).
The flow editor floats its chrome over a full-bleed node canvas using the same
frosted-surface model. See DESIGN-GUIDELINES.md → Shells and → Overlay surfaces
& content chips.