/* Window geometry belongs to the chat viewport, not the desktop browser. */
html body .pm-internal-window {
  position:fixed; z-index:20; box-sizing:border-box; overflow:hidden;
  min-width:min(300px,calc(100vw - 8px)); max-width:calc(100vw - 8px);
  min-height:230px; max-height:calc(100dvh - 8px); resize:both;
  border:1px solid var(--original-frame-edge,#555); border-radius:0;
  background:var(--original-outerBackground,var(--surface,#eee));
  box-shadow:2px 2px 4px #0005;
}
html body .pm-internal-window.pm-internal-active { z-index:21; }
html body .pm-internal-window.pm-internal-minimized { min-height:33px; resize:none; }
html body .pm-internal-window iframe { display:block; width:100%; height:100%; border:0; }