/* Direct Checkout Button — "choose variation" popup. Colours / radii are driven by CSS custom properties set per-button from the Elementor style controls (with the fallbacks below). Layout uses flexbox. The popup is appended to , which carries the theme/Elementor global-kit class (e.g. `.elementor-kit-10`). That kit styles BARE elements — `button`, `select`, etc. — including `background-color` and `border-radius` via global colour variables. Our popup uses real