/* Course promotion is desktop-only; mobile picture sources use a tiny placeholder. */
.ef-sidebar-course, .ef-related.ef-course-only { display: none; }
@media (min-width: 1100px) {
  .ef-related.ef-course-only { display: block; }
  a.ef-sidebar-course {
    display: block;
    max-width: 320px;
    margin: 0 0 24px;
    border-radius: 12px;
    overflow: hidden;
    line-height: 0;
  }
  .ef-sidebar-course picture { display: block; }
  .ef-sidebar-course img { display: block; width: 100%; height: auto; }
  .ef-sidebar-course:focus-visible { outline: 3px solid #136e42; outline-offset: 4px; }
}