/**
 * Frontend styles for the i4ware Lightbox Gallery.
 * Includes responsive CSS grid layouts, hover micro-interactions, and premium glassmorphic lightbox overlays.
 */

/* Responsive Grid Layout */
.i4ware-lightbox-gallery-wrap {
    display: grid;
    gap: 16px;
    margin: 20px 0;
}

.i4ware-lightbox-gallery-wrap.columns-1 { grid-template-columns: repeat(1, 1fr); }
.i4ware-lightbox-gallery-wrap.columns-2 { grid-template-columns: repeat(2, 1fr); }
.i4ware-lightbox-gallery-wrap.columns-3 { grid-template-columns: repeat(3, 1fr); }
.i4ware-lightbox-gallery-wrap.columns-4 { grid-template-columns: repeat(4, 1fr); }
.i4ware-lightbox-gallery-wrap.columns-5 { grid-template-columns: repeat(5, 1fr); }
.i4ware-lightbox-gallery-wrap.columns-6 { grid-template-columns: repeat(6, 1fr); }

/* Grid Item Styles */
.i4ware-lightbox-gallery-item {
    position: relative;
    display: block;
    aspect-ratio: 1 / 1;
    overflow: hidden;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
    background: #f7f7f7;
    transition: transform 0.3s cubic-bezier(0.25, 1, 0.5, 1), box-shadow 0.3s ease;
    cursor: pointer;
}

.i4ware-lightbox-gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.5s cubic-bezier(0.25, 1, 0.5, 1);
}

/* Hover Micro-interactions */
.i4ware-lightbox-gallery-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

.i4ware-lightbox-gallery-item:hover img {
    transform: scale(1.06);
}

/* Zoom Hover Overlay */
.i4ware-gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.35);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
    border-radius: 8px;
}

.i4ware-lightbox-gallery-item:hover .i4ware-gallery-overlay {
    opacity: 1;
}

.i4ware-gallery-zoom-icon {
    font-size: 26px;
    font-weight: 300;
    color: #fff;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transform: scale(0.9);
    transition: transform 0.3s cubic-bezier(0.25, 1, 0.5, 1);
}

.i4ware-lightbox-gallery-item:hover .i4ware-gallery-zoom-icon {
    transform: scale(1);
}

/* Responsive Grid Adapting */
@media (max-width: 900px) {
    .i4ware-lightbox-gallery-wrap.columns-4,
    .i4ware-lightbox-gallery-wrap.columns-5,
    .i4ware-lightbox-gallery-wrap.columns-6 {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 600px) {
    .i4ware-lightbox-gallery-wrap {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 12px;
    }
}

@media (max-width: 400px) {
    .i4ware-lightbox-gallery-wrap {
        grid-template-columns: repeat(1, 1fr) !important;
    }
}

/* Lightbox Premium Modal Overlay */
.i4ware-lightbox-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(10, 10, 10, 0.82);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 999999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
    box-sizing: border-box;
}

.i4ware-lightbox-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.i4ware-lightbox-overlay.fade-out {
    opacity: 0;
    pointer-events: none;
}

/* Media Centered Container */
.i4ware-lightbox-container {
    position: relative;
    max-width: 82%;
    max-height: 85%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.i4ware-lightbox-img {
    max-width: 100%;
    max-height: 75vh;
    object-fit: contain;
    border-radius: 6px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
    opacity: 0;
    transition: opacity 0.2s ease-in-out;
}

/* Captions / Meta Info Box */
.i4ware-lightbox-caption {
    background: rgba(15, 15, 15, 0.6);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    padding: 10px 18px;
    color: #fff;
    margin-top: 14px;
    text-align: center;
    max-width: 90%;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
    opacity: 0;
    transition: opacity 0.2s ease-in-out;
}

.i4ware-lightbox-caption-title {
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-bottom: 2px;
}

.i4ware-lightbox-caption-desc {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.7);
}

/* Controls Buttons */
.i4ware-lightbox-close,
.i4ware-lightbox-nav {
    position: fixed;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: rgba(255, 255, 255, 0.75);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s, color 0.2s, transform 0.2s;
    outline: none;
    z-index: 1000000;
}

.i4ware-lightbox-close:hover,
.i4ware-lightbox-nav:hover {
    background: rgba(255, 255, 255, 0.18);
    color: #fff;
    transform: scale(1.05);
}

.i4ware-lightbox-close:active,
.i4ware-lightbox-nav:active {
    transform: scale(0.95);
}

/* Close Positioning */
.i4ware-lightbox-close {
    top: 24px;
    right: 24px;
    width: 44px;
    height: 44px;
}

/* Navigation Arrow Positioning */
.i4ware-lightbox-nav {
    top: 50%;
    transform: translateY(-50%);
    width: 52px;
    height: 52px;
}

.i4ware-lightbox-nav:hover {
    transform: translateY(-50%) scale(1.05);
}

.i4ware-lightbox-nav:active {
    transform: translateY(-50%) scale(0.95);
}

.i4ware-lightbox-nav.prev {
    left: 28px;
}

.i4ware-lightbox-nav.next {
    right: 28px;
}

/* Responsive modal scaling overrides */
@media (max-width: 768px) {
    .i4ware-lightbox-nav {
        width: 42px;
        height: 42px;
    }
    
    .i4ware-lightbox-nav.prev { left: 12px; }
    .i4ware-lightbox-nav.next { right: 12px; }
    
    .i4ware-lightbox-close {
        top: 16px;
        right: 16px;
        width: 38px;
        height: 38px;
    }
    
    .i4ware-lightbox-container {
        max-width: 90%;
    }
}