/**
 * Trien Lam Gallery CSS
 * 
 * Styles for the image gallery system with 3x3 grid layout
 * and lightbox functionality
 */

/* =======================================
   Gallery Grid Layout
   ======================================= */

.trien-lam-gallery {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 40px;
    padding: 20px 0;
}

.trien-lam-gallery-item {
    position: relative;
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.trien-lam-gallery-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.trien-lam-gallery-item-image {
    position: relative;
    width: 100%;
    height: 250px;
    overflow: hidden;
    cursor: pointer;
}

.trien-lam-gallery-item-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.trien-lam-gallery-item:hover .trien-lam-gallery-item-image img {
    transform: scale(1.05);
}

.trien-lam-gallery-item-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.trien-lam-gallery-item:hover .trien-lam-gallery-item-overlay {
    opacity: 1;
}

.trien-lam-gallery-item-zoom {
    color: white;
    font-size: 32px;
    background: rgba(255, 255, 255, 0.2);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid rgba(255, 255, 255, 0.5);
    transition: background 0.3s ease;
}

.trien-lam-gallery-item-zoom:hover {
    background: rgba(255, 255, 255, 0.3);
}

.trien-lam-gallery-item-info {
    padding: 20px;
}

.trien-lam-gallery-item-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 10px;
    color: #333;
    line-height: 1.4;
}

.trien-lam-gallery-item-description {
    font-size: 14px;
    color: #666;
    margin-bottom: 15px;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.trien-lam-gallery-item-meta {
    font-size: 13px;
    color: #888;
    border-top: 1px solid #eee;
    padding-top: 12px;
}

.trien-lam-gallery-item-author {
    display: flex;
    align-items: center;
    margin-bottom: 8px;
}

.trien-lam-gallery-item-author-label {
    font-weight: 500;
    margin-right: 8px;
}

.trien-lam-gallery-item-author a {
    color: var(--global-palette1, #2196F3);
    text-decoration: none;
}

.trien-lam-gallery-item-author a:hover {
    text-decoration: underline;
}

.trien-lam-gallery-item-details {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
}

.trien-lam-gallery-item-detail {
    display: flex;
    align-items: center;
    gap: 5px;
}

.trien-lam-gallery-item-detail-label {
    font-weight: 500;
}

/* =======================================
   Lightbox Modal
   ======================================= */

.trien-lam-lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    z-index: 10000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.trien-lam-lightbox.active {
    display: flex;
}

.trien-lam-lightbox-content {
    max-width: 95%;
    max-height: 95%;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.trien-lam-lightbox-image {
    max-width: 100%;
    max-height: 85vh;
    object-fit: contain;
    display: block;
    border-radius: 8px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.trien-lam-lightbox-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-top: 20px;
    padding: 12px 20px;
    background: rgba(0, 0, 0, 0.8);
    border-radius: 30px;
    backdrop-filter: blur(10px);
    flex-wrap: nowrap;
}

.trien-lam-lightbox-prev,
.trien-lam-lightbox-next,
.trien-lam-lightbox-close {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: none;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 20px;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
}

.trien-lam-lightbox-prev:hover,
.trien-lam-lightbox-next:hover,
.trien-lam-lightbox-close:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

.trien-lam-lightbox-prev:disabled,
.trien-lam-lightbox-next:disabled {
    cursor: not-allowed;
    opacity: 0.5;
}

.trien-lam-lightbox-prev:disabled:hover,
.trien-lam-lightbox-next:disabled:hover {
    transform: none;
    background: rgba(255, 255, 255, 0.2);
}

.trien-lam-lightbox-counter {
    color: white;
    font-size: 16px;
    font-weight: 500;
    padding: 0 15px;
    white-space: nowrap;
}

/* =======================================
   Archive Page Header
   ======================================= */

.trien-lam-archive-header {
    margin-bottom: 40px;
    text-align: center;
    padding: 40px 0;
    background: #f8f9fa;
    border-radius: 8px;
}

.trien-lam-archive-title {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 10px;
    color: #333;
}

.trien-lam-archive-description {
    font-size: 16px;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* =======================================
   Breadcrumb Styles
   ======================================= */

.trien-lam-breadcrumb {
    margin-bottom: 30px;
}

.trien-lam-breadcrumb nav {
    background: #f8f9fa;
    padding: 15px 20px;
    border-radius: 8px;
}

.trien-lam-breadcrumb a {
    color: var(--global-palette1, #2196F3);
    text-decoration: none;
}

.trien-lam-breadcrumb a:hover {
    text-decoration: underline;
}

.trien-lam-breadcrumb .bc-delimiter {
    margin: 0 10px;
    color: #888;
}

.trien-lam-breadcrumb .kadence-bread-current {
    color: #333;
    font-weight: 500;
}

/* =======================================
   Pagination Styles
   ======================================= */

.trien-lam-pagination {
    margin-top: 40px;
    text-align: center;
}

.trien-lam-pagination .page-numbers {
    display: inline-block;
    padding: 10px 15px;
    margin: 0 5px;
    background: #f8f9fa;
    color: #333;
    text-decoration: none;
    border-radius: 5px;
    transition: background 0.3s ease;
}

.trien-lam-pagination .page-numbers:hover,
.trien-lam-pagination .page-numbers.current {
    background: var(--global-palette1, #2196F3);
    color: white;
}

/* =======================================
   Responsive Design
   ======================================= */

@media (max-width: 768px) {
    .trien-lam-gallery {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    
    .trien-lam-gallery-item-image {
        height: 200px;
    }
    
    .trien-lam-gallery-item-info {
        padding: 15px;
    }
    
    .trien-lam-gallery-item-title {
        font-size: 14px;
    }
    
    .trien-lam-gallery-item-description {
        font-size: 13px;
        -webkit-line-clamp: 2;
    }
    
    .trien-lam-lightbox-content {
        max-width: 98%;
        max-height: 98%;
    }
    
    .trien-lam-lightbox-image {
        max-height: 80vh;
    }
    
    .trien-lam-lightbox-controls {
        gap: 12px;
        margin-top: 15px;
        padding: 10px 15px;
        flex-wrap: nowrap;
    }
    
    .trien-lam-lightbox-prev,
    .trien-lam-lightbox-next,
    .trien-lam-lightbox-close {
        width: 36px;
        height: 36px;
        font-size: 16px;
    }
    
    .trien-lam-lightbox-counter {
        font-size: 13px;
        padding: 0 8px;
    }
    
    .trien-lam-archive-header {
        padding: 30px 20px;
    }
    
    .trien-lam-archive-title {
        font-size: 24px;
    }
    
    .trien-lam-archive-description {
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .trien-lam-gallery {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .trien-lam-gallery-item-image {
        height: 250px;
    }
    
    .trien-lam-gallery-item-details {
        flex-direction: column;
        gap: 8px;
    }
    
    .trien-lam-lightbox-details {
        flex-direction: column;
        gap: 10px;
    }
}

/* =======================================
   Empty State
   ======================================= */

.trien-lam-empty-state {
    text-align: center;
    padding: 80px 20px;
    background: #f8f9fa;
    border-radius: 8px;
    margin: 40px 0;
}

.trien-lam-empty-state-icon {
    font-size: 64px;
    color: #ddd;
    margin-bottom: 20px;
}

.trien-lam-empty-state-title {
    font-size: 24px;
    font-weight: 600;
    color: #333;
    margin-bottom: 10px;
}

.trien-lam-empty-state-description {
    font-size: 16px;
    color: #666;
    margin-bottom: 20px;
}

.trien-lam-empty-state-action {
    display: inline-block;
    padding: 12px 24px;
    background: var(--global-palette1, #2196F3);
    color: white;
    text-decoration: none;
    border-radius: 5px;
    transition: background 0.3s ease;
}

.trien-lam-empty-state-action:hover {
    background: var(--global-palette2, #1976D2);
    color: white;
}

/* =======================================
   Loading States
   ======================================= */

.trien-lam-gallery-loading {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 400px;
}

.trien-lam-gallery-loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid var(--global-palette1, #2196F3);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* =======================================
   Utility Classes
   ======================================= */

.trien-lam-sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.trien-lam-fade-in {
    animation: fadeIn 0.5s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* =======================================
   Focus States for Accessibility
   ======================================= */

.trien-lam-gallery-item:focus-within,
.trien-lam-lightbox-close:focus {
    outline: 2px solid var(--global-palette1, #2196F3);
    outline-offset: 2px;
}

/* =======================================
   Single Post Styles
   ======================================= */

.trien-lam-single-image {
    margin-bottom: 30px;
    text-align: center;
}

.trien-lam-featured-image {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.trien-lam-single-meta {
    background: #f8f9fa;
    padding: 25px;
    border-radius: 8px;
    margin: 30px 0;
}

.trien-lam-single-meta h3 {
    margin-top: 0;
    margin-bottom: 20px;
    color: #333;
    font-size: 20px;
    font-weight: 600;
}

.trien-lam-meta-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 15px;
}

.trien-lam-meta-item {
    display: flex;
    align-items: center;
    padding: 10px 0;
}

.trien-lam-meta-label {
    font-weight: 600;
    margin-right: 10px;
    color: #555;
    min-width: 100px;
}

.trien-lam-meta-value {
    color: #333;
}

.trien-lam-single-navigation {
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid #eee;
}

.trien-lam-back-to-gallery {
    display: inline-block;
    padding: 12px 24px;
    background: var(--global-palette1, #2196F3);
    color: white;
    text-decoration: none;
    border-radius: 5px;
    transition: background 0.3s ease;
    font-weight: 500;
}

.trien-lam-back-to-gallery:hover {
    background: var(--global-palette2, #1976D2);
    color: white;
    text-decoration: none;
}

@media (max-width: 768px) {
    .trien-lam-single-meta {
        padding: 20px;
    }
    
    .trien-lam-meta-grid {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    
    .trien-lam-meta-item {
        flex-direction: column;
        align-items: flex-start;
        padding: 8px 0;
    }
    
    .trien-lam-meta-label {
        margin-right: 0;
        margin-bottom: 5px;
        min-width: auto;
    }
}

/* =======================================
   Print Styles
   ======================================= */

@media print {
    .trien-lam-lightbox,
    .trien-lam-gallery-item-overlay {
        display: none !important;
    }
    
    .trien-lam-gallery {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .trien-lam-gallery-item {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ddd;
    }
}