Pennant

Announcement bar + cookie consent. Pennant is a slim top bar that rotates short messages with a vertical slide (paused on hover/focus, hairline progress meter), rolls an odometer countdown to a deadline and collapses on a height spring when dismissed, remembered via storageKey. Consent is a non-modal cookie card that rises into a bottom corner (full-width bar under 640px) with Accept / Reject / Customize; Customize grows the same card into per-category switches with Necessary locked on, reports onDecision, persists choices and reopens via ref from a footer link.