/* ==========================================================================
   Gallery Page Styles
   ========================================================================== */

/* Page Header */
.page-header {
    padding: 6rem 0 3rem;
    background-color: var(--color-bg-darker);
    border-bottom: 1px solid var(--color-border);
}

.page-title {
    font-size: 3.5rem;
    color: var(--color-accent-gold);
}

.page-subtitle {
    font-size: 1.25rem;
    max-width: 700px;
    margin: 0 auto;
}

/* Gallery Section */
.gallery-section {
    padding-top: 3rem;
}

/* Filters */
.gallery-filters {
    margin-bottom: 3rem;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
}

.filter-btn {
    background: transparent;
    color: var(--color-text-main);
    border: 1px solid var(--color-border);
    padding: 0.5rem 1.25rem;
    border-radius: 20px;
    font-family: var(--font-body);
    font-size: 0.95rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.filter-btn:hover {
    border-color: var(--color-accent-gold);
    color: var(--color-accent-gold);
}

.filter-btn.active {
    background-color: var(--color-accent-gold);
    color: var(--color-bg-dark);
    border-color: var(--color-accent-gold);
}

/* Gallery Grid */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    grid-auto-rows: 350px;
    gap: 1.5rem;
}

.gallery-item {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

/* Variations for visual diversity */
.gallery-item:nth-child(1) {
    grid-row: span 2;
}

.gallery-item:nth-child(4) {
    grid-column: span 2;
    grid-row: span 1;
}

.item-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(26, 26, 46, 0.85);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.item-overlay span {
    color: var(--color-accent-gold);
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin-bottom: 1rem;
    transform: translateY(20px);
    transition: transform var(--transition-normal);
}

.item-overlay i {
    color: var(--color-text-main);
    font-size: 2rem;
    transform: translateY(20px);
    transition: transform var(--transition-normal);
}

.gallery-item:hover .item-overlay {
    opacity: 1;
}

.gallery-item:hover .item-overlay span,
.gallery-item:hover .item-overlay i {
    transform: translateY(0);
}

.gallery-item:hover img {
    transform: scale(1.1);
}

/* Utility to hide items when filtered */
.gallery-item.hidden {
    display: none;
}

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

.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(19, 19, 34, 0.98);
    z-index: 2000;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal);
}

.lightbox.active {
    opacity: 1;
    pointer-events: auto;
}

.lightbox-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.lightbox-img {
    max-width: 100%;
    max-height: 80vh;
    object-fit: contain;
    box-shadow: 0 5px 30px rgba(0, 0, 0, 0.5);
    border-radius: 4px;
}

.lightbox-caption {
    color: var(--color-text-main);
    font-family: var(--font-heading);
    font-size: 1.25rem;
    margin-top: 1rem;
    text-align: center;
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
    position: absolute;
    background: none;
    border: none;
    color: var(--color-text-muted);
    font-size: 2.5rem;
    cursor: pointer;
    transition: color var(--transition-fast);
    z-index: 2001;
}

.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover {
    color: var(--color-accent-gold);
}

.lightbox-close {
    top: 2rem;
    right: 2rem;
}

.lightbox-prev {
    left: 2rem;
    top: 50%;
    transform: translateY(-50%);
}

.lightbox-next {
    right: 2rem;
    top: 50%;
    transform: translateY(-50%);
}

/* Responsive */
@media (max-width: 768px) {
    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
        grid-auto-rows: 250px;
    }

    .gallery-item:nth-child(1) {
        grid-row: span 1;
    }

    .gallery-item:nth-child(4) {
        grid-column: span 1;
        grid-row: span 1;
    }

    .page-title {
        font-size: 2.5rem;
    }

    .lightbox-prev,
    .lightbox-next {
        display: none;
        /* Swipe might be better for mobile, or move icons below image */
    }
}