The apex now leads with the one demo nothing else can run: a handle input that renders that account's site live at /s/[handle], resolved server-side so a typo fails inline. Every preview carries a claim banner (sign-in link with the handle prefilled — one click, never straight to authorize() on GET) and a noindex, since the preview path is never the canonical address. Handle input is normalized by a helper shared with the login form, which now also prefills from ?handle=. The landing page wears the site theme: airmail band, warm paper, par-avion postmark. The banner declares color-scheme: dark so auto-darkening browsers don't invert it. PD-10 in the decisions log; NEXT.md updated. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>