/**
 * BestLab Advanced Product Gallery
 * Enhanced with modern styling, animations, and better UX
 */

/* ================================================================== */
/*  CSS Variables                                                       */
/* ================================================================== */
:root {
    --bl-gallery-primary: #2271b1;
    --bl-gallery-primary-dark: #135e96;
    --bl-gallery-text: #3c434a;
    --bl-gallery-text-light: #646970;
    --bl-gallery-bg: #f8f9fa;
    --bl-gallery-border: #e2e2e2;
    --bl-gallery-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --bl-gallery-shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.12);
    --bl-gallery-radius: 8px;
    --bl-gallery-radius-sm: 6px;
    --bl-gallery-transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --bl-gallery-transition-fast: 0.15s ease;
}

/* ================================================================== */
/*  Gallery container                                                  */
/* ================================================================== */
.bl-advanced-gallery {
    position: relative;
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
}

.bl-advanced-gallery.bl-loading .bl-gallery-main {
    opacity: 0.5;
    pointer-events: none;
}

.bl-advanced-gallery.bl-loading .bl-gallery-main::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    animation: bl-gallery-shimmer 1.5s infinite;
}

/* ================================================================== */
/*  Elementor Tabs Hash Navigation Fix                                */
/* ================================================================== */

/* Elementor Pro tabs */
.elementor-tabs .elementor-tab-content {
    display: none;
}

.elementor-tabs .elementor-tab-content.elementor-active {
    display: block;
}

/* Elementor Core tabs (e-n-tabs) */
.e-n-tabs .e-n-tab-content {
    display: none;
}

.e-n-tabs .e-n-tab-content.e-n-tab-content-active {
    display: block;
}

/* Smooth scroll to element when tab is activated */
html {
    scroll-behavior: smooth;
}

@keyframes bl-gallery-shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* ================================================================== */
/*  Main image                                                         */
/* ================================================================== */
.bl-gallery-main {
    position: relative;
    margin-bottom: 16px;
    overflow: hidden;
    border-radius: var(--bl-gallery-radius);
    background: var(--bl-gallery-bg);
    box-shadow: var(--bl-gallery-shadow);
    line-height: 0;
    transition: box-shadow var(--bl-gallery-transition);
}

.bl-gallery-main:hover {
    box-shadow: var(--bl-gallery-shadow-hover);
}

/* Using <div> instead of <a> to prevent Elementor lightbox hijacking */
.bl-gallery-main-link {
    display: block;
    cursor: zoom-in;
    position: relative;
    overflow: hidden;
}

.bl-gallery-main-image {
    width: 100%;
    height: auto;
    display: block;
    transition: transform var(--bl-gallery-transition), opacity 0.25s ease;
}

.bl-gallery-main-link:hover .bl-gallery-main-image {
    transform: scale(1.03);
    opacity: 0.95;
}

/* Action overlay icons */
.bl-gallery-main-actions {
    position: absolute;
    bottom: 12px;
    right: 12px;
    display: flex;
    gap: 8px;
    opacity: 0;
    transform: translateY(8px);
    transition: opacity var(--bl-gallery-transition), transform var(--bl-gallery-transition);
    z-index: 10;
}

.bl-gallery-main:hover .bl-gallery-main-actions {
    opacity: 1;
    transform: translateY(0);
}

.bl-gallery-action-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.95);
    border: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--bl-gallery-transition-fast), transform var(--bl-gallery-transition-fast);
    color: var(--bl-gallery-text);
}

.bl-gallery-action-btn:hover {
    background: #fff;
    transform: scale(1.1);
}

.bl-gallery-action-btn svg {
    width: 20px;
    height: 20px;
}

/* Loading state */
.bl-gallery-main-loading {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bl-gallery-bg);
    z-index: 5;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
}

.bl-gallery-main-loading.active {
    opacity: 1;
}

.bl-gallery-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--bl-gallery-border);
    border-top-color: var(--bl-gallery-primary);
    border-radius: 50%;
    animation: bl-gallery-spin 0.8s linear infinite;
}

@keyframes bl-gallery-spin {
    to { transform: rotate(360deg); }
}

/* ================================================================== */
/*  Thumbnails                                                         */
/* ================================================================== */
.bl-gallery-thumbnails-wrapper {
    position: relative;
    padding: 0 40px;
}

.bl-gallery-thumbnails {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.bl-gallery-thumbnails.bl-gallery-scrollable {
    flex-wrap: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    scrollbar-color: #c1c1c1 #f0f0f0;
    padding: 8px 4px;
    margin: 0 -4px;
}

.bl-gallery-thumbnails.bl-gallery-scrollable::-webkit-scrollbar {
    height: 6px;
}

.bl-gallery-thumbnails.bl-gallery-scrollable::-webkit-scrollbar-track {
    background: #f0f0f0;
    border-radius: 3px;
}

.bl-gallery-thumbnails.bl-gallery-scrollable::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 3px;
}

.bl-gallery-thumbnails.bl-gallery-scrollable::-webkit-scrollbar-thumb:hover {
    background: #a1a1a1;
}

/* Thumbnail navigation arrows */
.bl-gallery-thumb-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: #fff;
    border: 1px solid #ddd;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 5;
    opacity: 1;
    transition: opacity 0.2s, box-shadow 0.2s, background 0.2s;
}

.bl-gallery-thumb-nav:hover {
    background: #f5f5f5;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.bl-gallery-thumb-nav svg {
    width: 20px;
    height: 20px;
    color: #333;
}

.bl-gallery-thumb-nav.bl-gallery-thumb-prev {
    left: -24px;
}

.bl-gallery-thumb-nav.bl-gallery-thumb-next {
    right: -24px;
}

.bl-gallery-thumb-nav.bl-gallery-thumb-disabled {
    opacity: 0.3 !important;
    cursor: not-allowed;
}

/* Thumbnail items */
.bl-gallery-thumbnail-item {
    flex: 0 0 auto;
    width: 90px;
    height: 90px;
    overflow: hidden;
    border-radius: var(--bl-gallery-radius-sm);
    cursor: pointer;
    border: 2px solid transparent;
    transition: border-color var(--bl-gallery-transition), 
                transform var(--bl-gallery-transition),
                box-shadow var(--bl-gallery-transition),
                opacity var(--bl-gallery-transition);
    background: var(--bl-gallery-bg);
    line-height: 0;
    position: relative;
}

.bl-gallery-thumbnail-item::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.3) 0%, transparent 50%);
    opacity: 0;
    transition: opacity var(--bl-gallery-transition-fast);
}

.bl-gallery-thumbnail-item:hover {
    border-color: var(--bl-gallery-text-light);
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

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

.bl-gallery-thumbnail-item.active {
    border-color: var(--bl-gallery-primary);
    box-shadow: 0 0 0 3px rgba(34, 113, 177, 0.2);
    transform: scale(1.02);
}

.bl-gallery-thumbnail-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform var(--bl-gallery-transition);
}

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

/* Video thumbnail icon */
.bl-gallery-video-play-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 32px;
    height: 32px;
    background: #ff6600;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
    box-shadow: 0 2px 8px rgba(255, 102, 0, 0.5);
    transition: background 0.2s, transform 0.2s;
    z-index: 2;
}

.bl-gallery-thumbnail-item:hover .bl-gallery-video-play-icon {
    background: #e55a00;
    transform: translate(-50%, -50%) scale(1.1);
}

.bl-gallery-video-play-icon svg {
    width: 16px;
    height: 16px;
    color: #fff;
    margin-left: 3px;
}

.bl-gallery-thumbnail-item[data-type="video"]::before {
    display: none;
}

/* Thumbnail loading state */
.bl-gallery-thumbnail-item.bl-thumb-loading::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.7);
    z-index: 1;
}

/* ================================================================== */
/*  Custom Lightbox                                                    */
/* ================================================================== */
.bl-lightbox {
    position: fixed;
    inset: 0;
    z-index: 999999;
    display: none;
}

.bl-lightbox.bl-lightbox-open {
    display: flex;
}

.bl-lightbox-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.92);
    cursor: pointer;
    transition: background 0.3s ease;
}

.bl-lightbox-content {
    position: relative;
    z-index: 1;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 80px;
    box-sizing: border-box;
}

/* Main image area */
.bl-lightbox-main {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    max-height: calc(100vh - 120px);
    position: relative;
}

.bl-lightbox-img-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    max-width: 100%;
    max-height: 100%;
    width: 100%;
    flex: 1;
    overflow: hidden;
}

.bl-lightbox-img {
    max-width: 100%;
    max-height: calc(100vh - 160px);
    display: block;
    border-radius: 4px;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5);
    object-fit: contain;
    position: relative;
    transform-origin: center center;
    transition: transform 0.1s ease-out;
    cursor: grab;
}

.bl-lightbox-iframe {
    width: 100%;
    max-width: 960px;
    max-height: calc(100vh - 160px);
    border-radius: 4px;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5);
}

/* Lightbox controls */
.bl-lightbox-close {
    position: absolute;
    top: 15px;
    right: 15px;
    z-index: 10;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    opacity: 0.7;
    transition: opacity 0.2s, transform 0.2s;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.bl-lightbox-close svg {
    width: 44px;
    height: 44px;
}

.bl-lightbox-close:hover {
    opacity: 1;
    transform: scale(1.1);
}

.bl-lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    opacity: 0.7;
    transition: opacity 0.2s, transform 0.2s;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.bl-lightbox-nav svg {
    width: 44px;
    height: 44px;
}

.bl-lightbox-nav:hover {
    opacity: 1;
    transform: translateY(-50%) scale(1.1);
}

.bl-lightbox-prev {
    left: 20px;
}

.bl-lightbox-next {
    right: 20px;
}

.bl-lightbox-nav.bl-lightbox-nav-disabled {
    opacity: 0.3 !important;
    cursor: not-allowed;
}

.bl-lightbox-nav.bl-lightbox-nav-disabled:hover {
    transform: translateY(-50%) scale(1);
    background: rgba(255, 255, 255, 0.1);
}

/* Counter */
.bl-lightbox-counter {
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255, 255, 255, 0.8);
    font-size: 14px;
    font-weight: 500;
    z-index: 10;
    background: rgba(0, 0, 0, 0.4);
    padding: 6px 14px;
    border-radius: 20px;
}

/* Caption */
.bl-lightbox-caption {
    position: absolute;
    bottom: 80px;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255, 255, 255, 0.9);
    font-size: 14px;
    max-width: 80%;
    text-align: center;
    opacity: 0;
    transition: opacity 0.3s ease;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
}

.bl-lightbox.bl-lightbox-open .bl-lightbox-caption {
    opacity: 1;
}

/* Thumbnail strip in lightbox */
.bl-lightbox-thumbs {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    max-width: 90vw;
    overflow-x: auto;
    padding: 8px;
    background: rgba(0, 0, 0, 0.5);
    border-radius: 12px;
    z-index: 10;
    scrollbar-width: thin;
    scrollbar-color: rgba(255,255,255,0.3) transparent;
}

.bl-lightbox-thumbs::-webkit-scrollbar {
    height: 4px;
}

.bl-lightbox-thumbs::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.3);
    border-radius: 2px;
}

.bl-lightbox-thumb {
    flex: 0 0 60px;
    width: 60px;
    height: 60px;
    border-radius: 4px;
    overflow: hidden;
    cursor: pointer;
    border: 2px solid transparent;
    opacity: 0.6;
    transition: opacity 0.2s, border-color 0.2s, transform 0.2s;
}

.bl-lightbox-thumb:hover {
    opacity: 0.9;
}

.bl-lightbox-thumb.active {
    opacity: 1;
    border-color: #fff;
    transform: scale(1.05);
}

.bl-lightbox-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ================================================================== */
/*  Responsive                                                         */
/* ================================================================== */
@media (max-width: 768px) {
    .bl-gallery-thumbnail-item {
        width: 70px;
        height: 70px;
    }

    .bl-gallery-main-actions {
        opacity: 1;
        transform: translateY(0);
    }

    .bl-gallery-action-btn {
        width: 36px;
        height: 36px;
    }

    .bl-gallery-thumb-nav {
        display: none;
    }

    .bl-lightbox-content {
        padding: 20px 50px;
    }

    .bl-lightbox-nav {
        width: 44px;
        height: 44px;
        padding: 12px 10px;
        font-size: 26px;
    }

    .bl-lightbox-prev {
        left: 8px;
    }

    .bl-lightbox-next {
        right: 8px;
    }

    .bl-lightbox-thumbs {
        bottom: 12px;
    }

    .bl-lightbox-thumb {
        flex: 0 0 50px;
        width: 50px;
        height: 50px;
    }

    .bl-lightbox-caption {
        bottom: 80px;
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    .bl-gallery-thumbnail-item {
        width: 60px;
        height: 60px;
    }

    .bl-gallery-thumbnails {
        gap: 6px;
    }

    .bl-lightbox-content {
        padding: 20px 40px;
    }

    .bl-lightbox-close {
        top: 12px;
        right: 12px;
        width: 38px;
        height: 38px;
        font-size: 24px;
    }

    .bl-lightbox-counter {
        top: 14px;
        font-size: 12px;
    }
}

/* ================================================================== */
/*  Animations                                                         */
/* ================================================================== */
@keyframes bl-fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes bl-scale-in {
    from { 
        opacity: 0;
        transform: scale(0.9);
    }
    to { 
        opacity: 1;
        transform: scale(1);
    }
}

.bl-gallery-thumbnail-item {
    animation: bl-fade-in 0.3s ease forwards;
}

.bl-gallery-thumbnail-item:nth-child(1) { animation-delay: 0s; }
.bl-gallery-thumbnail-item:nth-child(2) { animation-delay: 0.05s; }
.bl-gallery-thumbnail-item:nth-child(3) { animation-delay: 0.1s; }
.bl-gallery-thumbnail-item:nth-child(4) { animation-delay: 0.15s; }
.bl-gallery-thumbnail-item:nth-child(5) { animation-delay: 0.2s; }
.bl-gallery-thumbnail-item:nth-child(6) { animation-delay: 0.25s; }

/* ================================================================== */
/*  Video Popup                                                        */
/* ================================================================== */
.bl-video-popup {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 999999;
    align-items: center;
    justify-content: center;
}

.bl-video-popup.bl-video-popup-open {
    display: flex;
}

.bl-video-popup-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.88);
    cursor: pointer;
}

.bl-video-popup-content {
    position: relative;
    z-index: 1;
    width: 90vw;
    max-width: 960px;
}

.bl-video-popup-close {
    position: absolute;
    top: -52px;
    right: 0;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    opacity: 0.8;
    transition: opacity 0.2s, transform 0.2s;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.bl-video-popup-close:hover {
    opacity: 1;
    transform: scale(1.1);
}

.bl-video-popup-close svg {
    width: 44px;
    height: 44px;
}

.bl-video-popup-iframe-wrap {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%; /* 16:9 */
    height: 0;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.6);
}

.bl-video-popup-iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

@media (max-width: 768px) {
    .bl-video-popup-content {
        width: 95vw;
    }
    .bl-video-popup-close {
        top: -48px;
    }
}