/* Course collages follow the neighbouring monochrome organization marks. */
html[data-site-theme="dark"] :is(#challenge-areas,#challenge-areas-professional) .int-course-emblem img{
 filter:grayscale(1) invert(.88) contrast(1.06);
 -webkit-filter:grayscale(1) invert(.88) contrast(1.06);
 mix-blend-mode:normal;
 opacity:1;
}