/* single-case-study.css: the case-study article layout was PROMOTED to the style.css generic
   layer in the Step-1 lift, so single.php (regular posts) and the archives can reuse it. The
   moved rule sets (.cs-single/.cs-head/.byline/.av/.who/.ai-flag/.cs-feat/.frame/.cs-body and
   its typography/.cs-foot/.disclosure/.endnote/.back) now live in style.css and are NOT
   redefined here, so there is no duplicate selector. This sheet is still enqueued on
   case-study posts (functions.php) but is intentionally empty now; the enqueue can be dropped
   in a later cleanup step if desired. */