.course-card {
    position: relative;
    background: var(--brand-green);
    color: var(--brand-green-dark);
    padding: 40px 48px;
    overflow: hidden;
}

.course-card.is-dark {
    background: var(--brand-green-dark);
    color: var(--brand-white);
}

.course-card__header {
    margin-bottom: 28px;
    position: relative;
    z-index: 2;
}

.course-card__watermark {
    position: absolute;
    top: 50%;
    right: 40px;
    transform: translateY(-50%);
    width: 220px;
    height: auto;
    opacity: 0.22;
    pointer-events: none;
    z-index: 1;
    color: var(--brand-green-dark);
}
.course-card.is-dark .course-card__watermark {
    color: var(--brand-green);
    opacity: 0.18;
}

.course-card__subcards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
    position: relative;
    z-index: 2;
}

.course-card__subcard {
    background: rgba(255, 255, 255, 0.1);
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    border-radius: 0;
}
.course-card.is-dark .course-card__subcard {
    background: rgba(255, 255, 255, 0.06);
}

.course-card__subcard h4 {
    margin: 0;
    font-size: var(--brand-font-lg);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: inherit;
}

.course-card__bullets {
    margin: 0;
    padding-left: 18px;
    list-style: disc;
}
.course-card__bullets li {
    margin-bottom: 4px;
    font-size: var(--brand-font-sm);
    line-height: 1.45;
}

.course-card__meta {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 4px 12px;
    font-size: var(--brand-font-sm);
    margin: 8px 0 0;
    padding-top: 12px;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}
.course-card.is-dark .course-card__meta {
    border-top-color: rgba(255, 255, 255, 0.1);
}

.course-card__meta dt {
    font-weight: 600;
    margin: 0;
}
.course-card__meta dd {
    margin: 0;
}

@media (max-width: 640px) {
    .course-card { padding: 28px 20px; }
    .course-card__subcards { grid-template-columns: 1fr; }
    .course-card__watermark { width: 90px; }
}