.courses-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    margin-block: 56px;
    max-width: calc(100vw - 32px);
    margin-inline: auto;
}

@media (min-width: 580px) {
    .courses-list {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (min-width: 768px) {
    .courses-list {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }
}

.course-card {
    position: relative;
    aspect-ratio: 1;
    overflow: hidden;
    border-radius: var(--course-card-border-radius);
    /* Transition al estat base per animar tant l'entrada com la sortida */
    transition: background-size 0.3s ease-in-out;
}

/* Imatge de fons com a <img> real per permetre lazy-load i millor accessibilitat */
.course-card__bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease-in-out;
    z-index: 0;
    min-width: 100%;
    max-width: unset;
    min-height: 100%;
}

/* Gradient per llegibilitat del text */
.course-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0), rgba(0, 0, 0, 0.5));
    z-index: 1;
    pointer-events: none;
}

.course-card:hover .course-card__bg,
.course-card:focus-visible .course-card__bg {
    transform: scale(1.1);
}

@media (min-width: 768px) {
    .course-card {
        aspect-ratio: 2 / 3;
    }
}

.course-card__content {
    display: flex;
    flex-direction: column;
    gap: 8px;
    position: absolute;
    bottom: 0;
    left: 0;
    padding: var(--course-card-padding);
    width: 100%;
    color: white;
    z-index: 2;
    /* Per sobre del gradient i la imatge */
}

.course-card h3 {
    font-size: var(--course-card-title-size);
    margin: 0;
    font-weight: bold;
    color: inherit;
}

.course-card p {
    margin: 0;
    font-size: var(--course-card-subtitle-size);
    color: inherit;
}

.course-card__button {
    background-color: var(--course-card-btn-color);
    color: white;
    padding: 1rem;
    border-radius: 0.5rem;
    text-align: center;
    font-weight: bold;
    transition: background-color 0.3s ease-in-out;
}

/* When hovering a card, the button is highlighted */
.course-card:hover .course-card__button {
    background-color: var(--course-card-btn-hover-color);
}

/**
 * Back to courses list button
 */
.back-to-courses-list {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--course-card-btn-color);
    font-weight: bold;
    font-size: 14px;
    width: fit-content;
}

.back-to-courses-list i {
    display: flex;
    align-items: center;
}

.back-to-courses-list:hover {
    color: var(--course-card-btn-hover-color);
}

.back-to-courses-list:focus-visible {
    color: var(--course-card-btn-hover-color);
    outline: 2px solid currentColor;
    outline-offset: 2px;
    border-radius: 2px;
}