/* Gallery Page Specific Styles */

/* Filter Buttons */
.filter-btns {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 60px;
}

.filter-btn {
    background: none;
    border: none;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--grey);
    cursor: pointer;
    position: relative;
    padding: 10px 0;
    transition: var(--transition-smooth);
}

.filter-btn::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 1.5px;
    background-color: var(--gold);
    transition: var(--transition-smooth);
}

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

.filter-btn.active {
    color: var(--dark);
}

.filter-btn.active::after {
    width: 100%;
}

/* Gallery Grid (Simulated Premium Masonry) */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: 300px;
    gap: 20px;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    cursor: zoom-in;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    transition: var(--transition-smooth);
}

.gallery-item:hover {
    box-shadow: 0 20px 50px rgba(0,0,0,0.15);
    z-index: 10;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 1.5s cubic-bezier(0.165, 0.84, 0.44, 1);
}

/* Varied spans for masonry look */
.gallery-item:nth-child(1) { grid-row: span 2; grid-column: span 2; }
.gallery-item:nth-child(4) { grid-row: span 2; }
.gallery-item:nth-child(7) { grid-column: span 2; }

.gallery-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(0,0,0,0.6) 0%, rgba(0,0,0,0) 50%);
    opacity: 0;
    transition: var(--transition-smooth);
    z-index: 1;
}

.gallery-item::after {
    content: '\f067'; /* Font Awesome plus icon */
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.5);
    color: var(--white);
    font-size: 2rem;
    opacity: 0;
    z-index: 2;
    transition: var(--transition-smooth);
}

.gallery-item:hover img {
    transform: scale(1.08);
}

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

.gallery-item:hover::after {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

/* Lightbox - Glassmorphism Premium */
.lightbox {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s ease;
}

.lightbox.active {
    display: flex;
    opacity: 1;
    pointer-events: all;
}

.lightbox-content {
    max-width: 85%;
    max-height: 75vh;
    box-shadow: 0 40px 100px rgba(0,0,0,0.1);
    transform: scale(0.95);
    transition: transform 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.lightbox.active .lightbox-content {
    transform: scale(1);
}

#caption {
    margin-top: 30px;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--dark);
    letter-spacing: 2px;
}

.close-lightbox {
    position: absolute;
    top: 40px;
    right: 50px;
    color: var(--dark);
    font-size: 3rem;
    font-weight: 300;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.close-lightbox:hover {
    color: var(--gold);
    transform: rotate(90deg);
}

@media (max-width: 991px) {
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .gallery-item:nth-child(1) { grid-column: span 1; grid-row: span 1; }
    .gallery-item:nth-child(4) { grid-row: span 1; }
    .gallery-item:nth-child(7) { grid-column: span 1; }
}

@media (max-width: 768px) {
    .filter-btns {
        flex-wrap: wrap;
        gap: 20px;
    }
    .close-lightbox {
        top: 20px;
        right: 20px;
        font-size: 2.5rem;
    }
    .lightbox-content {
        max-width: 95%;
    }
}

@media (max-width: 576px) {
    .gallery-grid {
        grid-template-columns: 1fr;
        grid-auto-rows: 250px;
    }
}