Two urgency blocks in one extension. On the product page a countdown appears whenever the product carries an active special with a real end date - the deadline is read straight from the catalogue, never invented, so the timer hits zero at the same moment the discounted price reverts, and products whose special never expires simply show nothing. Separately, an optional campaign bar under the header counts down to a merchant-set deadline with your own message. Both blocks tick days, hours, minutes and seconds in vanilla JS, remove themselves at zero, and fall back to static server-rendered wording for shoppers who ask for reduced motion or run without JavaScript. Colours are configurable and validated. Injected by event - no core file edits.