{# Position-circle tooltip portal — page-root, position:fixed (escapes any #} {# tray overflow / mask-image clip per the portal gotcha). Distinct id from #} {# the tray's #id_tooltip_portal so the two hover systems don't collide. #} {# position-tooltip.js fills it on .gate-slot mouseenter from the circle's #} {# data-tt-* attrs + copies the circle's .tt-pos-* class on so it themes per #} {# occupant kind. The .tt-sign stack (seat significator: rank + suit) pins #} {# top-right, modeled on the tray sig card. #}