Aaron
20cc10fbc9
sizePW() rewritten: iframe height is always exactly vh so the top of the iframe aligns with y=0. The YouTube title bar (shown briefly on play) falls within the 52px #tb overlay (z-index:5) and stays hidden. Portrait (vw/vh < 16:9): w=vw, h=vh — YouTube letterboxes the 16:9 video internally; no horizontal overflow. Landscape / ultrawide (vw/vh >= 16:9): h=vh, w=min(vw, vh×1.778) — no vertical cropping; side black bars from #pw background on very wide screens. Co-Authored-By: claude-flow <ruv@ruv.net>