html:has(.page-background){--page-edge:color-mix(in srgb, var(--background) 40%, #e7eef8)}html.dark:has(.page-background){--page-edge:color-mix(in srgb, var(--background) 40%, #050915)}html:has(.page-background){background-color:var(--page-edge)}html:has(.page-background) body{background-color:var(--page-edge)}