/**
 * Course catalog cards — /courses/ and instructor class grids.
 */

#courses-grid,
.nle-course-catalog-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    row-gap: 2rem;
    column-gap: 2rem;
}

@media (min-width: 768px) {
    #courses-grid,
    .nle-course-catalog-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 1.75rem;
    }
}

@media (min-width: 1024px) {
    #courses-grid,
    .nle-course-catalog-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 2rem;
    }
}

.nle-course-card {
    display: flex;
    flex-direction: column;
    height: 100%;
    text-decoration: none;
    color: inherit;
    background: #fff;
    border-radius: 1.25rem;
    border: 1px solid rgba(74, 56, 54, 0.08);
    overflow: hidden;
    box-shadow:
        0 1px 2px rgba(74, 56, 54, 0.04),
        0 8px 24px rgba(74, 56, 54, 0.06);
    transition:
        transform 0.35s cubic-bezier(0.22, 1, 0.36, 1),
        box-shadow 0.35s cubic-bezier(0.22, 1, 0.36, 1),
        border-color 0.25s ease;
}

.nle-course-card:hover {
    transform: translateY(-6px);
    border-color: rgba(144, 154, 120, 0.35);
    box-shadow:
        0 4px 8px rgba(74, 56, 54, 0.06),
        0 20px 40px rgba(74, 56, 54, 0.12);
}

.nle-course-card.hidden {
    display: none;
}

.nle-course-card__media {
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: #ece7e8;
}

.nle-course-card__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.55s cubic-bezier(0.22, 1, 0.36, 1);
}

.nle-course-card:hover .nle-course-card__media img {
    transform: scale(1.06);
}

.nle-course-card__shade {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        180deg,
        rgba(0, 0, 0, 0.05) 0%,
        rgba(0, 0, 0, 0) 35%,
        rgba(0, 0, 0, 0.45) 100%
    );
    pointer-events: none;
}

.nle-course-card__badges {
    position: absolute;
    top: 0.75rem;
    left: 0.75rem;
    right: 0.75rem;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0.5rem;
    z-index: 2;
}

.nle-course-card__duration {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.35rem 0.65rem;
    border-radius: 9999px;
    font-family: 'Inter', sans-serif;
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    color: #fff;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.nle-course-card__badge {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.35rem 0.65rem;
    border-radius: 9999px;
    font-family: 'Inter', sans-serif;
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.nle-course-card__badge--premium {
    color: rgb(74, 56, 54);
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.nle-course-card__badge--free {
    color: #fff;
    background: rgba(144, 154, 120, 0.92);
}

.nle-course-card__play {
    position: absolute;
    left: 50%;
    top: 50%;
    z-index: 2;
    width: 3rem;
    height: 3rem;
    margin: -1.5rem 0 0 -1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: #fff;
    background: rgba(255, 255, 255, 0.22);
    border: 1px solid rgba(255, 255, 255, 0.45);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    opacity: 0;
    transform: scale(0.85);
    transition:
        opacity 0.3s ease,
        transform 0.3s cubic-bezier(0.22, 1, 0.36, 1);
    pointer-events: none;
}

.nle-course-card:hover .nle-course-card__play {
    opacity: 1;
    transform: scale(1);
}

.nle-course-card__body {
    display: flex;
    flex-direction: column;
    flex: 1;
    padding: 1.125rem 1.25rem 1.25rem;
    gap: 0.5rem;
}

.nle-course-card__meta-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.nle-course-card__category {
    display: inline-block;
    padding: 0.25rem 0.55rem;
    border-radius: 0.375rem;
    font-family: 'Inter', sans-serif;
    font-size: 0.625rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #6b7359;
    background: rgba(144, 154, 120, 0.14);
}

.nle-course-card__level {
    font-family: 'Inter', sans-serif;
    font-size: 0.75rem;
    font-weight: 500;
    color: rgba(74, 56, 54, 0.55);
}

.nle-course-card__title {
    margin: 0;
    font-family: 'Flatline Sans', Georgia, serif;
    font-weight: 600;
    font-size: 1.2rem;
    line-height: 1.3;
    color: rgb(74, 56, 54);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color 0.2s ease;
}

.nle-course-card:hover .nle-course-card__title {
    color: #6b7359;
}

.nle-course-card__instructor {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-family: 'Inter', sans-serif;
    font-size: 0.8125rem;
    font-weight: 500;
    color: rgba(74, 56, 54, 0.65);
}

.nle-course-card__instructor svg {
    flex-shrink: 0;
    width: 1rem;
    height: 1rem;
    opacity: 0.55;
}

.nle-course-card__series {
    margin: 0;
    font-family: 'Inter', sans-serif;
    font-size: 0.75rem;
    color: rgba(74, 56, 54, 0.55);
    line-height: 1.4;
}

.nle-course-card__series strong {
    font-weight: 600;
    color: rgba(74, 56, 54, 0.75);
}

.nle-course-card__footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    margin-top: auto;
    padding-top: 0.75rem;
    border-top: 1px solid rgba(74, 56, 54, 0.08);
}

.nle-course-card__stat {
    font-family: 'Inter', sans-serif;
    font-size: 0.75rem;
    font-weight: 500;
    color: rgba(74, 56, 54, 0.5);
}

.nle-course-card__cta {
    font-family: 'Inter', sans-serif;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    color: #909a78;
    opacity: 0;
    transform: translateX(-4px);
    transition:
        opacity 0.25s ease,
        transform 0.25s ease;
}

.nle-course-card:hover .nle-course-card__cta {
    opacity: 1;
    transform: translateX(0);
}

@media (max-width: 767px) {
    .nle-course-card__cta {
        opacity: 1;
        transform: none;
    }

    .nle-course-card__play {
        opacity: 0.85;
        transform: scale(1);
    }
}

/* Instructor directory grid */
.nle-instructor-catalog-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

@media (min-width: 768px) {
    .nle-instructor-catalog-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 1.75rem;
    }
}

@media (min-width: 1024px) {
    .nle-instructor-catalog-grid {
        grid-template-columns: repeat(4, minmax(0, 1fr));
        gap: 2rem;
    }
}

/* Related instructors on single instructor page */
.nle-instructor-related-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.5rem;
}

@media (min-width: 1024px) {
    .nle-instructor-related-grid {
        grid-template-columns: repeat(4, minmax(0, 1fr));
        gap: 2rem;
    }
}