/**
 * Course archive highlights — uses DesignTokens.css variables only
 */

.course-archive {
    background: var(--surface-page);
    padding: 2rem 0 4.5rem;
}

.course-archive__main {
    padding: 2rem 2rem 2.25rem;
}

.course-archive__head {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.625rem;
    margin-bottom: 1.75rem;
}

.course-archive__head-title {
    margin: 0;
    font-size: clamp(1.125rem, 2.5vw, 1.375rem);
    font-weight: 700;
    color: var(--text-heading);
    flex: 1 1 100%;
}

@media (min-width: 768px) {
    .course-archive__head-title {
        flex: 1 1 auto;
    }
}

/* ── Meta grid ── */
.course-archive__meta {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
    margin-bottom: 2rem;
}

@media (min-width: 768px) {
    .course-archive__meta {
        grid-template-columns: repeat(3, 1fr);
    }
}

.course-archive__meta-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 1rem 1.125rem;
    background: var(--surface-primary-soft);
    border: 1px solid var(--primary-150);
    border-radius: var(--radius-md);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.course-archive__meta-item:hover {
    border-color: var(--primary-300);
    box-shadow: var(--shadow-card);
}

.course-archive__meta-icon {
    flex-shrink: 0;
    width: 2.25rem;
    height: 2.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    background: var(--surface-card);
    color: var(--primary-600);
    font-size: 0.9375rem;
    border: 1px solid var(--primary-200);
}

.course-archive__meta-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 0.2rem;
}

.course-archive__meta-value {
    display: block;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text-heading);
    line-height: 1.55;
}

.course-archive__meta-value--accent {
    color: var(--primary-700);
}

/* ── Gallery showcase ── */
.course-archive__gallery {
    padding-top: 0.5rem;
    border-top: 1px solid var(--border-subtle);
}

.course-archive__gallery-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 1.125rem;
}

.course-archive__gallery-head .course-archive__section-title {
    margin-bottom: 0;
}

.course-gallery__stage {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-subtle);
    background: var(--secondary-1000);
    aspect-ratio: 16 / 9;
    box-shadow: var(--shadow-card);
}

.course-gallery__stage--single {
    aspect-ratio: 16 / 9;
}

.course-gallery__slides {
    position: absolute;
    inset: 0;
}

.course-gallery__slide {
    position: absolute;
    inset: 0;
    margin: 0;
    opacity: 0;
    transition: opacity 0.55s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
}

.course-gallery__slide.is-active {
    opacity: 1;
    pointer-events: auto;
}

.course-gallery__slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.course-gallery__slide video {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
    background: #000;
}

.course-gallery__slide-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    margin: 0;
    padding: 3rem 1.25rem 1rem;
    background: linear-gradient(transparent, rgba(1, 23, 37, 0.78));
    color: var(--text-inverse);
    font-size: 0.9375rem;
    font-weight: 500;
    text-align: center;
    line-height: 1.5;
}

.course-gallery__arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 4;
    width: 2.75rem;
    height: 2.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    border-radius: var(--radius-sm);
    background: var(--surface-card);
    color: var(--text-heading);
    font-size: 0.9375rem;
    cursor: pointer;
    box-shadow: var(--shadow-header);
    opacity: 0;
    transition: opacity 0.25s ease, background 0.15s ease, color 0.15s ease, transform 0.15s ease;
}

.course-gallery__stage:hover .course-gallery__arrow {
    opacity: 1;
}

.course-gallery__arrow:hover {
    background: var(--primary);
    color: var(--text-on-primary);
    transform: translateY(-50%) scale(1.06);
}

.course-gallery__arrow--prev { right: 1rem; }
.course-gallery__arrow--next { left: 1rem; }

.course-gallery__expand {
    position: absolute;
    top: 1rem;
    left: 1rem;
    z-index: 4;
    width: 2.25rem;
    height: 2.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: var(--radius-sm);
    background: rgba(1, 23, 37, 0.45);
    backdrop-filter: blur(8px);
    color: var(--text-inverse);
    font-size: 0.8125rem;
    cursor: pointer;
    transition: background 0.15s ease, border-color 0.15s ease;
}

.course-gallery__expand:hover {
    background: rgba(1, 23, 37, 0.65);
    border-color: rgba(255, 255, 255, 0.45);
}

.course-gallery__counter {
    position: absolute;
    top: 1rem;
    right: 1rem;
    z-index: 4;
    display: inline-flex;
    align-items: center;
    gap: 0.2rem;
    padding: 0.3rem 0.75rem;
    border-radius: 999px;
    background: rgba(1, 23, 37, 0.45);
    backdrop-filter: blur(8px);
    color: var(--text-inverse);
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.course-gallery__counter-sep {
    opacity: 0.55;
    font-weight: 400;
}

.course-gallery__filmstrip {
    display: flex;
    gap: 0.625rem;
    margin-top: 0.875rem;
    padding: 0.25rem 0.125rem;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scrollbar-width: thin;
    scrollbar-color: var(--primary-300) transparent;
}

.course-gallery__filmstrip::-webkit-scrollbar {
    height: 4px;
}

.course-gallery__filmstrip::-webkit-scrollbar-thumb {
    background: var(--primary-300);
    border-radius: 4px;
}

.course-gallery__thumb {
    flex-shrink: 0;
    width: 5.5rem;
    height: 3.625rem;
    padding: 0;
    border: 2px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    overflow: hidden;
    cursor: pointer;
    background: var(--surface-muted);
    opacity: 0.55;
    scroll-snap-align: start;
    transition: opacity 0.25s ease, border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}

.course-gallery__thumb img,
.course-gallery__thumb video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.course-gallery__thumb-media {
    position: relative;
    display: block;
    width: 100%;
    height: 100%;
}

.course-gallery__thumb-play {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(1, 23, 37, 0.35);
    color: var(--text-inverse);
    font-size: 0.75rem;
    pointer-events: none;
}

.course-gallery__thumb:hover {
    opacity: 0.85;
}

.course-gallery__thumb.is-active {
    opacity: 1;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-100);
    transform: translateY(-2px);
}

.course-archive__section-title {
    margin: 0 0 1.25rem;
    font-size: 1.0625rem;
    font-weight: 700;
    color: var(--text-heading);
}

/* ── Learners (layout only — colors via DesignUtilities) ── */
.course-archive__learners {
    margin-top: 2.5rem;
    padding: 1.75rem;
}

.course-archive__learners-head {
    text-align: center;
    margin-bottom: 1.5rem;
}

.course-archive__learners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(7.5rem, 1fr));
    gap: 0.875rem;
}

.course-archive__learner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.625rem;
    padding: 1rem 0.625rem;
    cursor: pointer;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.course-archive__learner:hover {
    border-color: var(--primary-300) !important;
    box-shadow: var(--shadow-card);
}

.course-archive__learner-avatar {
    width: 4.25rem;
    height: 4.25rem;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--primary-200);
    background: var(--surface-card);
}

.course-archive__learner-name {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-heading);
    text-align: center;
    line-height: 1.45;
    word-break: break-word;
}

.course-archive__learner-profile {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
    text-align: center;
}

.course-archive__learner-profile img {
    width: 4rem;
    height: 4rem;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--primary-300);
}

/* ── Reviews ── */
.course-archive__reviews {
    margin-top: 2.5rem;
}

.course-archive__reviews-head {
    text-align: center;
    margin-bottom: 1.75rem;
}

.course-archive__reviews-head h2 {
    margin: 0 0 0.375rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-heading);
}

.course-archive__reviews-head p {
    margin: 0;
    font-size: 0.875rem;
    color: var(--text-muted);
}

.course-archive__review {
    display: flex;
    gap: 1rem;
    padding: 1.25rem 1.375rem;
    background: var(--surface-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    margin-bottom: 0.875rem;
    max-width: 780px;
    margin-left: auto;
    margin-right: auto;
}

.course-archive__review-avatar {
    flex-shrink: 0;
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--primary-300);
}

.course-archive__review-body {
    flex: 1;
    min-width: 0;
}

.course-archive__review-top {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.course-archive__review-name {
    font-weight: 700;
    font-size: 0.9375rem;
    color: var(--text-heading);
}

.course-archive__review-date {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.course-archive__review-text {
    margin: 0;
    font-size: 0.875rem;
    line-height: 1.75;
    color: var(--text-secondary);
}

.course-archive__load-more {
    display: block;
    text-align: center;
    margin-top: 0.5rem;
    padding: 0.625rem;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary-600);
    background: none;
    border: none;
    width: 100%;
    transition: color 0.15s ease;
}

.course-archive__load-more:hover {
    color: var(--primary-700);
}

/* ── Lightbox ── */
.course-archive-lightbox {
    position: fixed;
    inset: 0;
    z-index: 10050;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    background: rgba(1, 23, 37, 0.88);
    backdrop-filter: blur(6px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease, visibility 0.25s ease;
}

.course-archive-lightbox.is-open {
    opacity: 1;
    visibility: visible;
}

.course-archive-lightbox__inner {
    position: relative;
    max-width: min(960px, 100%);
    width: 100%;
}

.course-archive-lightbox__img,
.course-archive-lightbox__video {
    width: 100%;
    max-height: 80vh;
    object-fit: contain;
    border-radius: var(--radius-md);
    display: block;
    margin: 0 auto;
}

.course-archive-lightbox__video {
    background: #000;
}

.course-archive-lightbox__img[hidden],
.course-archive-lightbox__video[hidden] {
    display: none !important;
}

.course-archive-lightbox__caption {
    text-align: center;
    color: var(--neutral-200);
    font-size: 0.875rem;
    margin-top: 0.75rem;
}

.course-archive-lightbox__close,
.course-archive-lightbox__nav {
    position: absolute;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-inverse);
    cursor: pointer;
    font-size: 1rem;
    transition: background 0.15s ease;
}

.course-archive-lightbox__close:hover,
.course-archive-lightbox__nav:hover {
    background: rgba(255, 255, 255, 0.2);
}

.course-archive-lightbox__close {
    top: -3rem;
    left: 0;
}

.course-archive-lightbox__nav--prev {
    top: 50%;
    transform: translateY(-50%);
    right: -3.25rem;
}

.course-archive-lightbox__nav--next {
    top: 50%;
    transform: translateY(-50%);
    left: -3.25rem;
}

@media (max-width: 767px) {
    .course-archive {
        padding-top: 1.25rem;
    }

    .course-archive__main {
        padding: 1.25rem 1rem 1.5rem;
    }

    .course-gallery__arrow {
        opacity: 1;
        width: 2.25rem;
        height: 2.25rem;
    }

    .course-gallery__arrow--prev { right: 0.625rem; }
    .course-gallery__arrow--next { left: 0.625rem; }

    .course-gallery__thumb {
        width: 4.5rem;
        height: 3rem;
    }

    .course-archive-lightbox__nav--prev {
        right: 0.5rem;
    }

    .course-archive-lightbox__nav--next {
        left: 0.5rem;
    }

    .course-archive-lightbox__close {
        top: 0.5rem;
        left: 0.5rem;
    }
}