/* Container */
.course-grid {
    /* overall page spacing */
    max-width: 1400px;
    margin: 16px auto;
    padding: 0 16px;

    display: grid;
    gap: 16px;

    /* default: 1 column (mobile-first) */
    grid-template-columns: 1fr;
    align-items: stretch;
}

/* 2 columns: small tablets / large phones */
@media (min-width: 640px) {
    .course-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

/* 3 columns: laptops / landscape tablets */
@media (min-width: 960px) {
    .course-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

/* 4 columns: desktop */
@media (min-width: 1280px) {
    .course-grid {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }
}

/* Cards */
.course-card {
    display: flex;
    flex-direction: column;

    border: 1px solid #ddd;
    border-radius: 12px;
    background: #fff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);

    /* height constraints you asked for */
    min-height: 260px;
    max-height: 520px;

    overflow: hidden; /* makes rounded corners behave */
}

.course-card__body {
    padding: 16px;
    flex: 1 1 auto;

    /* if descriptions get long, scroll inside the card */
    overflow: auto;
}

.course-card__footer {
    padding: 12px 16px 16px 16px;
}

.course-card__rule {
    margin: 0;
    border: 0;
    border-top: 1px solid #eee;
}

.course-card__title {
    margin: 0 0 8px 0;
    font-size: 1.05rem;
}

/* keep headings tight */
.course-card h4 {
    margin: 12px 0 6px 0;
    font-size: 0.95rem;
}

.course-card p,
.course-card li {
    margin: 0 0 8px 0;
    font-size: 0.95rem;
    line-height: 1.35;
}

.course-sections {
    margin-top: 4px;
}

.course-sections__summary {
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 600;
    color: #005ea2;          /* FGCU-ish blue if you want */
    list-style: none;
}

/* Remove default disclosure triangle */
.course-sections summary::-webkit-details-marker {
    display: none;
}

/* Custom indicator */
.course-sections__summary::before {
    content: "";
    display: inline-block;
    width: 0;
    height: 0;
    margin-right: 6px;
    border-left: 6px solid currentColor;
    border-top: 4px solid transparent;
    border-bottom: 4px solid transparent;
    transition: transform 0.2s ease;
}

/* rotate when open */
.course-sections[open] .course-sections__summary::before {
    transform: rotate(90deg);
}


.course-sections ul {
    margin: 8px 0 0 0;
    padding-left: 16px;
}

.course-sections li {
    margin-bottom: 4px;
    font-size: 0.9rem;
}