/* ==========================================================================
   MediaGallery Component Styles
   Includes grid layout, masonry layout, strip layout,
   filter chips, item cards, lightbox, and entrance animations.
   Uses design-system tokens from tokens.css.
   ========================================================================== */

/* --- Gallery Container --- */

.media-gallery {
    width: 100%;
}

.media-gallery__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

.media-gallery__title {
    font-family: var(--font-heading);
    font-size: var(--text-3xl);
    font-weight: var(--font-bold);
    color: var(--text-primary, #1e293b);
    margin: 0;
    line-height: var(--leading-tight);
}

.media-gallery__count {
    font-family: var(--font-body);
    font-size: var(--text-sm);
    color: var(--text-muted, #94a3b8);
    font-weight: var(--font-medium);
}

/* --- Filter Chips --- */

.media-gallery__filters {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-bottom: var(--space-6);
}

.media-gallery__filters [data-category] {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.4rem 0.9rem;
    border: 1.5px solid var(--border-light, #e2e8f0);
    border-radius: var(--radius-full);
    background: transparent;
    color: var(--text-secondary, #475569);
    font-family: var(--font-body);
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    cursor: pointer;
    transition: var(--transition-normal);
    white-space: nowrap;
}

.media-gallery__filters [data-category]:hover {
    border-color: var(--color-accent, #d4a853);
    color: var(--color-accent, #d4a853);
    background: rgba(var(--color-accent-rgb, 212, 168, 83), 0.06);
}

.media-gallery__filters [data-category].active {
    background: var(--color-accent, #d4a853);
    border-color: var(--color-accent, #d4a853);
    color: var(--text-inverse, #fff);
    box-shadow: var(--shadow-accent);
}

.media-gallery__filter-count {
    font-size: 0.7rem;
    opacity: 0.65;
}

/* ==========================================================================
   Grid Layout (Default)
   ========================================================================== */

.media-gallery__grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: var(--space-4);
}

@media (min-width: 576px) {
    .media-gallery__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .media-gallery__grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1400px) {
    .media-gallery__grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* --- Grid Items --- */

.media-gallery__item {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
    aspect-ratio: 4 / 3;
    background: var(--bg-tertiary, #f5f3f0);
    box-shadow: var(--shadow-xs);
    /* Staggered entrance animation */
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--duration-slow) var(--ease-out),
                transform var(--duration-slow) var(--ease-out);
}

.media-gallery__item.visible {
    opacity: 1;
    transform: translateY(0);
}

.media-gallery__thumb {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform var(--duration-slow) var(--ease-smooth),
                opacity var(--duration-normal) var(--ease-out);
    opacity: 0;
}

.media-gallery__thumb.loaded {
    opacity: 1;
}

.media-gallery__item:hover .media-gallery__thumb {
    transform: scale(1.06);
}

/* Hover overlay with subtle blur */
.media-gallery__item-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.35);
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    opacity: 0;
    transition: opacity var(--duration-normal) var(--ease-out);
    color: var(--text-inverse, #fff);
}

.media-gallery__item:hover .media-gallery__item-overlay {
    opacity: 1;
}

.media-gallery__item-overlay i {
    font-size: 1.5rem;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
}

.media-gallery__item-title {
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    text-align: center;
    padding: 0 var(--space-2);
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.4);
}

/* Badges */
.media-gallery__video-badge {
    position: absolute;
    top: var(--space-3);
    left: var(--space-3);
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    color: var(--text-inverse, #fff);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    pointer-events: none;
}

.media-gallery__featured-badge {
    position: absolute;
    top: var(--space-3);
    right: var(--space-3);
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--color-accent, #d4a853);
    color: var(--text-inverse, #fff);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    pointer-events: none;
    box-shadow: var(--shadow-accent);
}

/* --- Empty State --- */

.media-gallery__empty {
    text-align: center;
    padding: var(--space-12) var(--space-4);
    color: var(--text-muted, #94a3b8);
    display: none;
}

.media-gallery__empty i {
    font-size: 3.5rem;
    margin-bottom: var(--space-4);
    opacity: 0.35;
}

.media-gallery__empty p {
    font-family: var(--font-body);
    font-size: var(--text-base);
}

/* --- Load More --- */

.media-gallery__load-more-wrapper {
    text-align: center;
    margin-top: var(--space-8);
}

.media-gallery__load-more {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--btn-padding-y) var(--btn-padding-x-lg);
    border: 2px solid var(--color-accent, #d4a853);
    border-radius: var(--radius-full);
    background: transparent;
    color: var(--color-accent, #d4a853);
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    cursor: pointer;
    transition: var(--transition-normal);
}

.media-gallery__load-more:hover {
    background: var(--color-accent, #d4a853);
    color: var(--text-inverse, #fff);
    box-shadow: var(--shadow-accent);
}

/* ==========================================================================
   Masonry Layout
   CSS-only masonry using grid-auto-rows with span sizing.
   ========================================================================== */

.media-gallery--masonry .media-gallery__grid {
    grid-template-columns: repeat(2, 1fr);
    grid-auto-rows: 8px;
    gap: var(--space-3);
}

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

@media (min-width: 1200px) {
    .media-gallery--masonry .media-gallery__grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Masonry items lose their fixed aspect-ratio and instead span rows */
.media-gallery--masonry .media-gallery__item {
    aspect-ratio: unset;
    /* Default: standard landscape (span ~22 rows = ~176px) */
    grid-row-end: span 22;
    border-radius: var(--radius-md);
}

/* Portrait items */
.media-gallery--masonry .media-gallery__item[data-layout="portrait"] {
    grid-row-end: span 32;
}

/* Square items */
.media-gallery--masonry .media-gallery__item[data-layout="square"] {
    grid-row-end: span 26;
}

/* Featured items span 2 columns */
.media-gallery--masonry .media-gallery__item[data-featured="true"] {
    grid-column: span 2;
    grid-row-end: span 30;
}

.media-gallery--masonry .media-gallery__thumb {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

.media-gallery--masonry .media-gallery__item-overlay {
    /* Overlay already absolute, works fine in masonry */
}

/* ==========================================================================
   Strip Layout (Horizontal Scroll)
   Compact horizontal strip for embedding between content sections.
   ========================================================================== */

.media-gallery--strip {
    position: relative;
}

.media-gallery--strip .media-gallery__grid {
    display: flex;
    gap: var(--space-3);
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding: var(--space-2) 0;
}

.media-gallery--strip .media-gallery__grid::-webkit-scrollbar {
    display: none;
}

.media-gallery--strip .media-gallery__item {
    flex: 0 0 auto;
    width: 180px;
    height: 135px;
    aspect-ratio: unset;
    scroll-snap-align: start;
    border-radius: var(--radius-default);
    opacity: 1;
    transform: none;
}

.media-gallery--strip .media-gallery__item:hover {
    transform: scale(1.04);
    z-index: 2;
}

/* Fade edges for scroll indication */
.media-gallery--strip::before,
.media-gallery--strip::after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: 40px;
    z-index: 3;
    pointer-events: none;
}

.media-gallery--strip::before {
    left: 0;
    background: linear-gradient(to right, var(--bg-primary, #fff), transparent);
}

.media-gallery--strip::after {
    right: 0;
    background: linear-gradient(to left, var(--bg-primary, #fff), transparent);
}

/* View-all link at end of strip */
.media-gallery__strip-view-all {
    flex: 0 0 auto;
    width: 120px;
    height: 135px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    background: var(--bg-tertiary, #f5f3f0);
    border-radius: var(--radius-default);
    color: var(--color-accent, #d4a853);
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    text-decoration: none;
    transition: var(--transition-normal);
    scroll-snap-align: end;
}

.media-gallery__strip-view-all:hover {
    background: rgba(var(--color-accent-rgb, 212, 168, 83), 0.1);
    color: var(--color-accent, #d4a853);
}

.media-gallery__strip-view-all i {
    font-size: 1.5rem;
}

/* ==========================================================================
   Lightbox Overlay
   ========================================================================== */

.media-lightbox {
    position: fixed;
    inset: 0;
    z-index: 10000;
    background: rgba(0, 0, 0, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    display: none;
    flex-direction: column;
    /* Entrance animation */
    opacity: 0;
    transform: scale(0.97);
    transition: opacity var(--duration-slow) var(--ease-out),
                transform var(--duration-slow) var(--ease-out);
}

.media-lightbox.active {
    display: flex;
    opacity: 1;
    transform: scale(1);
}

.media-lightbox.closing {
    opacity: 0;
    transform: scale(0.97);
}

/* Header */
.media-lightbox__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) var(--space-6);
    color: var(--text-inverse, #fff);
    z-index: 2;
}

.media-lightbox__counter {
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    opacity: 0.75;
}

.media-lightbox__actions {
    display: flex;
    gap: var(--space-2);
}

.media-lightbox__btn {
    width: 40px;
    height: 40px;
    border: none;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    color: var(--text-inverse, #fff);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    transition: var(--transition-fast);
}

.media-lightbox__btn:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Swiper inside lightbox */
.media-lightbox__swiper {
    flex: 1;
    width: 100%;
}

.media-lightbox__swiper .swiper-slide {
    display: flex;
    align-items: center;
    justify-content: center;
}

.media-lightbox__swiper img {
    max-width: 90vw;
    max-height: 75vh;
    object-fit: contain;
    border-radius: var(--radius-sm);
    user-select: none;
}

/* Video in lightbox */
.media-lightbox__video-wrapper {
    width: 90vw;
    max-width: 960px;
    aspect-ratio: 16 / 9;
}

.media-lightbox__video-wrapper iframe {
    width: 100%;
    height: 100%;
    border-radius: var(--radius-default);
}

/* Image info bar */
.media-lightbox__info {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
    padding: var(--space-3) var(--space-6);
    color: var(--text-inverse, #fff);
    background: rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    font-family: var(--font-body);
    z-index: 2;
}

.media-lightbox__info-title {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    max-width: 400px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.media-lightbox__info-event {
    font-size: var(--text-xs);
    opacity: 0.6;
}

.media-lightbox__info-separator {
    width: 1px;
    height: 16px;
    background: rgba(255, 255, 255, 0.2);
}

/* Lightbox navigation arrows — glassmorphism */
.media-lightbox__prev,
.media-lightbox__next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    border: none;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    color: var(--text-inverse, #fff);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    z-index: 3;
    transition: var(--transition-fast);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.media-lightbox__prev { left: var(--space-6); }
.media-lightbox__next { right: var(--space-6); }

.media-lightbox__prev:hover,
.media-lightbox__next:hover {
    background: rgba(255, 255, 255, 0.18);
    border-color: rgba(255, 255, 255, 0.15);
}

/* Touch hint (mobile first-time) */
.media-lightbox__touch-hint {
    position: absolute;
    bottom: 80px;
    left: 50%;
    transform: translateX(-50%);
    padding: var(--space-2) var(--space-4);
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-radius: var(--radius-full);
    color: var(--text-inverse, #fff);
    font-family: var(--font-body);
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    z-index: 4;
    animation: hintFadeOut 3s ease-out forwards;
    pointer-events: none;
}

@keyframes hintFadeOut {
    0% { opacity: 1; }
    70% { opacity: 1; }
    100% { opacity: 0; }
}

/* Responsive lightbox */
@media (max-width: 767px) {
    .media-lightbox__header {
        padding: var(--space-3) var(--space-4);
    }

    .media-lightbox__prev,
    .media-lightbox__next {
        width: 44px;
        height: 44px;
        font-size: 1rem;
    }

    .media-lightbox__prev { left: var(--space-2); }
    .media-lightbox__next { right: var(--space-2); }

    .media-lightbox__swiper img {
        max-width: 96vw;
        max-height: 70vh;
    }

    .media-lightbox__download {
        display: none;
    }

    .media-lightbox__info {
        padding: var(--space-2) var(--space-4);
        flex-direction: column;
        gap: var(--space-1);
    }

    .media-lightbox__info-separator {
        display: none;
    }
}

/* ==========================================================================
   Responsive Gallery Adjustments
   ========================================================================== */

@media (max-width: 767px) {
    .media-gallery__filters {
        overflow-x: auto;
        flex-wrap: nowrap;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        padding-bottom: var(--space-2);
    }

    .media-gallery__filters::-webkit-scrollbar {
        display: none;
    }

    .media-gallery__header {
        flex-direction: column;
        align-items: flex-start;
    }

    .media-gallery__title {
        font-size: var(--text-2xl);
    }

    /* Strip items smaller on mobile */
    .media-gallery--strip .media-gallery__item {
        width: 140px;
        height: 105px;
    }
}

/* ==========================================================================
   Reduced Motion
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
    .media-gallery__item {
        opacity: 1;
        transform: none;
        transition: none;
    }

    .media-lightbox {
        transition: none;
    }

    .media-lightbox__touch-hint {
        animation: none;
    }
}