How we use cookies.
This site uses a minimal number of cookies (small text files stored on your device) to make the site work properly and to help us understand how it is being used. We do not use cookies for advertising or for cross-site tracking.
We use two categories of cookie:
You can disable cookies in your browser settings. Most modern browsers let you do this on a per-site basis. Disabling cookies will not break the core experience of this site, though some preferences may not persist between visits.
If we ever add new categories of cookie (for example, if we add embedded video or third-party form-handling) we will update this page and prompt for consent where required.
Last updated · 25 April 2026