Bug Fixes

- Ranking card text now visible on colored backgrounds: Text inside ranking activity items stays readable when the surrounding card uses a dark theme color.

- Flip cards keep long text inside the card: Flip cards now hold their shape and scroll their content internally, so long text no longer spills outside the card in the editor or preview.

- Cover page background respects theme colors: When no cover image is set, the cover page now uses the theme's secondary background color instead of a decorative gradient.

- Block duplicate exports while one is in progress: The Export button is disabled and a warning appears when another export is already running, preventing accidental duplicate jobs.

- No more phantom blank card when generating with AI: Selecting Generate with AI on a card placeholder no longer leaves an extra empty card behind once generation completes.

- Clearer error when renaming a theme to a name already in use: Saving a theme with a duplicate name now returns a friendly conflict message instead of a generic server error, and a missing theme returns a proper not-found response.

- Logo detection on more website layouts: The brand-theme extractor now finds the logo on Framer and similar sites that don't use a traditional header or nav, so theme generation from a URL succeeds more often.