/* PDF course headings remain readable above the source cover image. */
.ha-hero.ha-course-hero { background: #14181c; color: #fff; }
.ha-hero.ha-course-hero .ha-hero__media { opacity: .3; }
.ha-hero.ha-course-hero .ha-hero__lede { color: #e2dcd1; }
.ha-hero.ha-course-hero::before {
    background: linear-gradient(90deg, rgba(20,24,28,.96), rgba(20,24,28,.8) 60%, rgba(20,24,28,.6));
}
.ha--rtl .ha-hero.ha-course-hero::before {
    background: linear-gradient(270deg, rgba(20,24,28,.96), rgba(20,24,28,.8) 60%, rgba(20,24,28,.6));
}
@media (max-width:780px) {
    .ha-hero.ha-course-hero::before, .ha--rtl .ha-hero.ha-course-hero::before {
        background: rgba(20,24,28,.88);
    }
}