/* ==========================================================================
   RESOURCE CARD
   The standard article card for the theme. Same card language as
   .du-principle-card / .du-featured-resource__card: border, radius-lg,
   shadow-level-1, hover lift.
   ========================================================================== */

.du-resource-card {
    display: flex;
    flex-direction: column;
    background-color: var(--surface);
    border: var(--border-width) solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-level-1);
    overflow: hidden;
    transition: box-shadow var(--transition-normal), border-color var(--transition-normal), transform var(--transition-normal);
}

.du-resource-card:hover,
.du-resource-card:focus-within {
    border-color: var(--primary-hover);
    box-shadow: var(--shadow-level-2);
    transform: translateY(-2px);
}

.du-resource-card__media {
    position: relative;
    aspect-ratio: 4 / 3;
}

.du-resource-card__media-link {
    display: block;
    width: 100%;
    height: 100%;
}

.du-resource-card__image,
.du-resource-card__media .du-media-placeholder {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.du-resource-card__badge {
    position: absolute;
    top: var(--space-xs);
    left: var(--space-xs);
    background-color: var(--surface);
}

.du-resource-card__bookmark {
    position: absolute;
    top: var(--space-xs);
    right: var(--space-xs);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    background-color: var(--surface);
    color: var(--on-surface-variant);
    border: none;
    transition: color var(--transition-fast), transform var(--transition-fast);
}

.du-resource-card__bookmark:hover {
    color: var(--primary);
}

.du-resource-card__bookmark:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px var(--surface-container-low);
}

.du-resource-card__bookmark.is-saved {
    color: var(--primary);
}

.du-resource-card__bookmark.is-saved svg {
    fill: currentColor;
}

.du-resource-card__body {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    padding: var(--space-sm);
}

.du-resource-card__reading-time {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: var(--on-surface-variant);
    margin-bottom: var(--space-xs);
}

.du-resource-card__title {
    margin: 0 0 var(--space-xs);
}

.du-resource-card__title-link {
    color: var(--on-surface);
    text-decoration: none;
}

.du-resource-card__title-link:hover,
.du-resource-card__title-link:focus-visible {
    color: var(--primary);
    text-decoration: underline;
}

.du-resource-card__excerpt {
    color: var(--on-surface-variant);
    margin: 0 0 var(--space-sm);
    flex-grow: 1;
}

.du-resource-card__footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-xs);
    padding-top: var(--space-xs);
    border-top: var(--border-width) solid var(--border);
}

.du-resource-card__date {
    color: var(--outline);
}