/**
 * Art Gallery Element - Styles
 *
 * Uses CSS custom properties (--nkw-ag-*) injected via the render function
 * so Cornerstone control values take effect. Fallback defaults are provided
 * for every property.
 *
 * @package Nubbernaut_Kidwind
 * @since 1.8.0
 */

/* Container */
.nkw-art-gallery {
    font-family: inherit;
}

/* Grid */
.nkw-art-gallery .nkw-ag-grid {
    display: grid;
    grid-template-columns: repeat(var(--nkw-ag-grid-cols, 3), 1fr);
    gap: var(--nkw-ag-grid-gap, 1.5em);
}

.nkw-art-gallery .nkw-ag-grid[hidden] {
    display: none;
}

.nkw-art-gallery .nkw-ag-remaining {
    margin-top: var(--nkw-ag-grid-gap, 1.5em);
}

/* Card */
.nkw-art-gallery .nkw-ag-card {
    background: var(--nkw-ag-card-bg, #fff);
    border: 1px solid var(--nkw-ag-card-border, #e2e8f0);
    border-radius: var(--nkw-ag-card-radius, 0.5em);
    overflow: hidden;
    transition: box-shadow 0.2s ease;
    display: flex;
    flex-direction: column;
}

.nkw-art-gallery .nkw-ag-card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* Card Title */
.nkw-art-gallery .nkw-ag-card-title {
    font-size: var(--nkw-ag-title-size, 1em);
    font-weight: 600;
    color: var(--nkw-ag-title-color, #2d3748);
    padding: 0.75em 0.75em 0.5em;
    line-height: 1.3;
}

/* Card Image */
.nkw-art-gallery .nkw-ag-card-image {
    position: relative;
    width: 100%;
    aspect-ratio: 1 / 1;
    overflow: hidden;
}

.nkw-art-gallery .nkw-ag-image-link {
    display: block;
    width: 100%;
    height: 100%;
}

.nkw-art-gallery .nkw-ag-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: opacity 0.3s ease;
}

.nkw-art-gallery .nkw-ag-no-image {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.05);
    color: var(--nkw-ag-meta-color, #718096);
    font-size: 0.875em;
}

/* Unapproved (admin view) */
.nkw-art-gallery .nkw-ag-card--unapproved .nkw-ag-img {
    opacity: var(--nkw-ag-unapproved-opacity, 0.4);
}

.nkw-art-gallery .nkw-ag-card--unapproved:hover .nkw-ag-img {
    opacity: 1;
}

/* Card Meta */
.nkw-art-gallery .nkw-ag-card-meta {
    padding: 0.5em 0.75em 0.75em;
    flex: 1;
}

.nkw-art-gallery .nkw-ag-meta-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0.2em;
}

.nkw-art-gallery .nkw-ag-meta-list li {
    font-size: var(--nkw-ag-meta-size, 0.8125em);
    line-height: 1.4;
    color: var(--nkw-ag-meta-color, #718096);
}

.nkw-art-gallery .nkw-ag-meta-label {
    font-weight: 600;
    color: var(--nkw-ag-title-color, #2d3748);
}

.nkw-art-gallery .nkw-ag-meta-value {
    color: var(--nkw-ag-meta-color, #718096);
}

/* Admin Controls */
.nkw-art-gallery .nkw-ag-card-admin {
    padding: 0.5em 0.75em;
    border-top: 1px solid var(--nkw-ag-card-border, #e2e8f0);
    background: rgba(0, 0, 0, 0.02);
}

.nkw-art-gallery .nkw-ag-approve-btn {
    display: block;
    width: 100%;
    padding: 0.4em 0.75em;
    border: none;
    border-radius: 4px;
    font-size: 0.75em;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.nkw-art-gallery .nkw-ag-approve-btn--unapproved {
    background: var(--nkw-ag-approve-bg, #38a169);
    color: var(--nkw-ag-approve-color, #fff);
}

.nkw-art-gallery .nkw-ag-approve-btn--unapproved:hover {
    filter: brightness(1.1);
}

.nkw-art-gallery .nkw-ag-approve-btn--approved {
    background: var(--nkw-ag-unapprove-bg, #e53e3e);
    color: var(--nkw-ag-unapprove-color, #fff);
}

.nkw-art-gallery .nkw-ag-approve-btn--approved:hover {
    filter: brightness(1.1);
}

.nkw-art-gallery .nkw-ag-approve-btn:disabled {
    opacity: 0.6;
    cursor: wait;
}

/* Toggle Button */
.nkw-art-gallery .nkw-ag-toggle-btn {
    display: block;
    margin: var(--nkw-ag-grid-gap, 1.5em) auto 0;
    padding: 0.6em 1.5em;
    background: var(--nkw-ag-btn-bg, #3182ce);
    color: var(--nkw-ag-btn-color, #fff);
    border: none;
    border-radius: var(--nkw-ag-btn-radius, 0.375em);
    font-size: 0.9375em;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
}

.nkw-art-gallery .nkw-ag-toggle-btn:hover {
    background: var(--nkw-ag-btn-bg-hover, #2c5282);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.nkw-art-gallery .nkw-ag-toggle-btn:focus {
    outline: 2px solid var(--nkw-ag-btn-bg, #3182ce);
    outline-offset: 2px;
}

/* Empty State */
.nkw-art-gallery .nkw-ag-empty {
    padding: 2em;
    text-align: center;
    color: var(--nkw-ag-meta-color, #718096);
    background: rgba(0, 0, 0, 0.02);
    border-radius: var(--nkw-ag-card-radius, 0.5em);
    border: 1px dashed var(--nkw-ag-card-border, #e2e8f0);
}

/* Cursor hint on clickable images */
.nkw-art-gallery .nkw-ag-image-link {
    cursor: pointer;
}

/* ═══════ Lightbox ═══════ */

.nkw-ag-lightbox {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 100000;
    align-items: center;
    justify-content: center;
}

.nkw-ag-lightbox.nkw-ag-lb-open {
    display: flex;
}

/* Dark backdrop */
.nkw-ag-lb-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.85);
}

/* Content container */
.nkw-ag-lb-content {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    max-width: 90vw;
    max-height: 90vh;
}

/* The image */
.nkw-ag-lb-img {
    max-width: 90vw;
    max-height: 85vh;
    object-fit: contain;
    border-radius: 4px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

/* Close button */
.nkw-ag-lb-close {
    position: absolute;
    top: -2.5rem;
    right: -0.5rem;
    background: none;
    border: none;
    color: #fff;
    font-size: 2rem;
    line-height: 1;
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    opacity: 0.8;
    transition: opacity 0.2s;
    z-index: 2;
}

.nkw-ag-lb-close:hover {
    opacity: 1;
}

/* Prev / Next arrows */
.nkw-ag-lb-prev,
.nkw-ag-lb-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.5);
    border: none;
    color: #fff;
    font-size: 2.5rem;
    line-height: 1;
    cursor: pointer;
    padding: 0.5rem 0.75rem;
    border-radius: 4px;
    opacity: 0.7;
    transition: opacity 0.2s, background 0.2s;
    z-index: 2;
}

.nkw-ag-lb-prev:hover,
.nkw-ag-lb-next:hover {
    opacity: 1;
    background: rgba(0, 0, 0, 0.7);
}

.nkw-ag-lb-prev {
    left: -3.5rem;
}

.nkw-ag-lb-next {
    right: -3.5rem;
}

/* Image counter */
.nkw-ag-lb-counter {
    position: absolute;
    bottom: -2rem;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.875rem;
    white-space: nowrap;
}

/* Lightbox responsive - move arrows inside on small screens */
@media (max-width: 768px) {
    .nkw-ag-lb-prev {
        left: 0.5rem;
    }

    .nkw-ag-lb-next {
        right: 0.5rem;
    }

    .nkw-ag-lb-close {
        top: -2rem;
        right: 0;
    }
}

/* ═══════ Responsive Grid ═══════ */

/* Responsive - 2 columns */
@media (max-width: 900px) {
    .nkw-art-gallery .nkw-ag-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Responsive - 1 column */
@media (max-width: 540px) {
    .nkw-art-gallery .nkw-ag-grid {
        grid-template-columns: 1fr;
    }
}