/* Gallery Section - Carousel with Grid Pages */
.gallery-section {
    width: 100%;
    max-width: 100vw;
    margin: 0;
    padding: var(--spacing-xl) 0;
    position: relative;
    overflow: hidden;
    background-color: var(--color-bg);
}

.gallery-title {
    max-width: var(--max-width);
    margin: 0 auto var(--spacing-lg);
    padding: 0 var(--spacing-md);
}

/* Hidden radio buttons for carousel navigation */
.gallery-radio {
    display: none;
}

/* Gallery Controls */
.gallery-controls {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 10;
}

/* Carousel Container */
.gallery-carousel-container {
    position: relative;
    width: 100%;
    overflow: hidden;
    min-height: 500px;
}

@media (max-width: 768px) {
    .gallery-carousel-container {
        min-height: auto;
        height: fit-content;
    }
}

.gallery-carousel-wrapper {
    display: flex;
    width: 400%; /* 4 pages */
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform;
}

/* Each page takes 25% of the wrapper width */
.gallery-page {
    width: 25%;
    flex-shrink: 0;
    padding: 0 var(--spacing-md);
    box-sizing: border-box;
}

/* Grid layout for each page */
.gallery-page-grid {
    max-width: var(--max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.gallery-grid-item {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    aspect-ratio: 4 / 3;
    background: var(--color-bg-secondary);
    cursor: pointer;
    box-shadow: 0 2px 8px 0 rgba(0, 0, 0, 0.2), 0 3px 20px 0 rgba(0, 0, 0, 0.19);
}

.gallery-grid-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease, filter 0.3s ease;
}

.gallery-grid-item:hover img {
    filter: brightness(0.7);
    transform: scale(1.05);
}

.gallery-grid-item a {
    display: block;
    width: 100%;
    height: 100%;
}

/* Carousel page positioning */
#gallery-page-1:checked ~ .gallery-carousel-container .gallery-carousel-wrapper {
    transform: translateX(0);
}

#gallery-page-2:checked ~ .gallery-carousel-container .gallery-carousel-wrapper {
    transform: translateX(-25%);
}

#gallery-page-3:checked ~ .gallery-carousel-container .gallery-carousel-wrapper {
    transform: translateX(-50%);
}

#gallery-page-4:checked ~ .gallery-carousel-container .gallery-carousel-wrapper {
    transform: translateX(-75%);
}

/* Navigation arrows - positioned in middle of carousel */
.gallery-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(8px);
    border: 1pt solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 20;
    transition: all 0.3s ease;
    color: var(--color-text);
    font-size: 0;
    line-height: 1;
    font-weight: 300;
    text-decoration: none;
    pointer-events: all;
}

/* Chevron left - two lines pointing left */
.gallery-nav-prev::before,
.gallery-nav-prev::after {
    content: '';
    position: absolute;
    width: 12px;
    height: 2px;
    background: var(--color-text);
    border-radius: 1px;
    transition: transform 0.3s ease;
}

.gallery-nav-prev::before {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) translateX(1px) rotate(45deg);
    transform-origin: left center;
}

.gallery-nav-prev::after {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) translateX(1px) rotate(-45deg);
    transform-origin: left center;
}

/* Chevron right - two lines pointing right */
.gallery-nav-next::before,
.gallery-nav-next::after {
    content: '';
    position: absolute;
    width: 12px;
    height: 2px;
    background: var(--color-text);
    border-radius: 1px;
    transition: transform 0.3s ease;
}

.gallery-nav-next::before {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) translateX(-1px) rotate(-45deg);
    transform-origin: right center;
}

.gallery-nav-next::after {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) translateX(-1px) rotate(45deg);
    transform-origin: right center;
}

.gallery-nav:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-50%) scale(1.05);
}

.gallery-nav:hover::before,
.gallery-nav:hover::after {
    transition: transform 0.3s ease;
}

.gallery-nav:active {
    transform: translateY(-50%) scale(0.95);
}

.gallery-nav-prev {
    left: var(--spacing-md);
}

.gallery-nav-next {
    right: var(--spacing-md);
}

/* Arrow visibility based on page */
.gallery-nav {
    display: none;
}

/* Show next arrow on page 1 */
#gallery-page-1:checked ~ .gallery-carousel-container .gallery-controls .gallery-nav-next-1 {
    display: flex;
}

/* Show both arrows on page 2 */
#gallery-page-2:checked ~ .gallery-carousel-container .gallery-controls .gallery-nav-prev-2,
#gallery-page-2:checked ~ .gallery-carousel-container .gallery-controls .gallery-nav-next-2 {
    display: flex;
}

/* Show both arrows on page 3 */
#gallery-page-3:checked ~ .gallery-carousel-container .gallery-controls .gallery-nav-prev-3,
#gallery-page-3:checked ~ .gallery-carousel-container .gallery-controls .gallery-nav-next-3 {
    display: flex;
}

/* Show prev arrow on page 4 */
#gallery-page-4:checked ~ .gallery-carousel-container .gallery-controls .gallery-nav-prev-4 {
    display: flex;
}

/* Lightbox - CSS Only using :target */
.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: center;
    pointer-events: none;
}

.lightbox:target {
    display: flex;
    pointer-events: all;
}

.lightbox-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    z-index: 10001;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-image {
    max-width: 100%;
    max-height: 90vh;
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    display: block;
}

/* Lightbox Close Button */
.lightbox-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1pt solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text);
    font-size: 0;
    line-height: 1;
    text-decoration: none;
    z-index: 10002;
    transition: all 0.3s ease;
    cursor: pointer;
}

/* X symbol - two diagonal lines */
.lightbox-close::before,
.lightbox-close::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 2px;
    background: var(--color-text);
    border-radius: 1px;
    transition: transform 0.3s ease;
    transform-origin: center center;
}

.lightbox-close::before {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(45deg);
}

.lightbox-close::after {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(-45deg);
}

.lightbox-close:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
}

/* Lightbox Navigation Arrows */
.lightbox-prev,
.lightbox-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1pt solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text);
    font-size: 0;
    line-height: 1;
    text-decoration: none;
    z-index: 10002;
    transition: all 0.3s ease;
    cursor: pointer;
}

/* Chevron left for lightbox - two lines pointing left */
.lightbox-prev::before,
.lightbox-prev::after {
    content: '';
    position: absolute;
    width: 14px;
    height: 2px;
    background: var(--color-text);
    border-radius: 1px;
    transition: transform 0.3s ease;
}

.lightbox-prev::before {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) translateX(2px) rotate(45deg);
    transform-origin: left center;
}

.lightbox-prev::after {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) translateX(2px) rotate(-45deg);
    transform-origin: left center;
}

/* Chevron right for lightbox - two lines pointing right */
.lightbox-next::before,
.lightbox-next::after {
    content: '';
    position: absolute;
    width: 14px;
    height: 2px;
    background: var(--color-text);
    border-radius: 1px;
    transition: transform 0.3s ease;
}

.lightbox-next::before {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) translateX(-2px) rotate(-45deg);
    transform-origin: right center;
}

.lightbox-next::after {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) translateX(-2px) rotate(45deg);
    transform-origin: right center;
}

.lightbox-prev:hover,
.lightbox-next:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-50%) scale(1.1);
}

.lightbox-prev {
    left: var(--spacing-md);
}

.lightbox-next {
    right: var(--spacing-md);
}

/* Lightbox Backdrop - Click to close */
.lightbox-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    cursor: pointer;
}

/* Responsive adjustments */
@media (max-width: 1024px) {
    .gallery-page-grid {
        grid-template-columns: repeat(2, 1fr);
        grid-template-rows: repeat(2, minmax(0, 1fr));
        grid-auto-rows: 0;
        overflow: hidden;
    }
    
    .gallery-page-grid > .gallery-grid-item:nth-child(n+5) {
        display: none;
    }
}

@media (max-width: 768px) {
    .gallery-carousel-container {
        min-height: auto;
        height: fit-content;
    }
    
    .gallery-page-grid {
        grid-template-columns: 1fr;
        grid-template-rows: auto;
        grid-auto-rows: auto;
        overflow: visible;
        gap: var(--spacing-sm);
        height: fit-content;
    }
    
    .gallery-page-grid > .gallery-grid-item:nth-child(n+2) {
        display: none;
    }
    
    .gallery-grid-item {
        aspect-ratio: 16 / 9;
        height: auto;
    }
    
    .gallery-page {
        height: fit-content;
    }
    
    .gallery-nav {
        width: 48px;
        height: 48px;
        font-size: 1.5rem;
        top: 50%;
        transform: translateY(-50%);
    }
    
    .gallery-nav-prev {
        left: var(--spacing-sm);
    }
    
    .gallery-nav-next {
        right: var(--spacing-sm);
    }
    
    .lightbox-prev,
    .lightbox-next {
        width: 48px;
        height: 48px;
        font-size: 2rem;
    }
    
    .lightbox-close {
        width: 48px;
        height: 48px;
        top: var(--spacing-sm);
        right: var(--spacing-sm);
    }
    
    .lightbox-close::before,
    .lightbox-close::after {
        width: 18px;
    }
}