/* === Variables === */
:root {
    --gallerie-primary: #6366f1;
    --gallerie-secondary: #424242;
    --gallerie-background: #ffffff;
    --gallerie-text: #222222;
}

.gallerie-container {
    --primary-color: var(--gallerie-primary);
    --primary-dark: color-mix(in srgb, var(--gallerie-primary) 80%, black);
    --text-primary: var(--gallerie-text);
    --text-secondary: var(--gallerie-secondary);
    --bg-light: #f9fafb;
    --bg-white: var(--gallerie-background);
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* === Container principal === */
.gallerie-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 40px 20px;
}

/* === Loading === */
.gallerie-loading,
.gallerie-error {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 400px;
    color: var(--text-secondary);
}

.spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.spinner-small {
    width: 32px;
    height: 32px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* === Titres === */
.gallery-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 12px;
}

.gallery-title svg {
    color: var(--primary-color);
}

/* === Empty state === */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 400px;
    color: var(--text-secondary);
}

.empty-state svg {
    margin-bottom: 20px;
    opacity: 0.4;
}

.empty-state p {
    font-size: 18px;
    margin: 0;
}

/* ==================== FOLDER GALLERY ==================== */

.folders-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 32px;
}

.folder-card {
    background: white;
    border-radius: 16px;
    padding: 24px;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
    animation: fadeInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1) backwards;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.folder-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.folder-card:hover .folder-icon {
    transform: scale(1.05) rotate(-2deg);
}

.folder-card:hover .folder-overlay {
    opacity: 1;
}

.folder-card:hover .preview-img {
    animation: imageFloat 2s ease-in-out infinite;
}

.folder-card:hover .img-1 {
    animation-delay: 0s;
}

.folder-card:hover .img-2 {
    animation-delay: 0.1s;
}

.folder-card:hover .img-3 {
    animation-delay: 0.2s;
}

@keyframes imageFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

.folder-icon-container {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
}

.folder-icon {
    width: 200px;
    height: 160px;
    color: var(--primary-color);
    transition: var(--transition);
    position: relative;
}

.folder-back {
    filter: drop-shadow(0 4px 8px rgba(99, 102, 241, 0.2));
}

/* Images d'aperçu réelles dans le dossier */
.folder-preview-images {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -30%);
    display: flex;
    gap: 5px;
    width: 140px;
    height: 50px;
}

.folder-preview-images .preview-image {
    position: absolute;
    width: 50px;
    height: 40px;
    object-fit: cover;
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    transition: transform 0.3s ease;
    background: white;
}

.folder-preview-images .preview-1 {
    left: 0;
    z-index: 3;
    transform: rotate(-5deg);
}

.folder-preview-images .preview-2 {
    left: 40px;
    z-index: 2;
    transform: rotate(2deg);
}

.folder-preview-images .preview-3 {
    left: 80px;
    z-index: 1;
    transform: rotate(-3deg);
}

.folder-card:hover .folder-preview-images .preview-1 {
    transform: rotate(-8deg) translateY(-5px);
}

.folder-card:hover .folder-preview-images .preview-2 {
    transform: rotate(5deg) translateY(-3px);
}

.folder-card:hover .folder-preview-images .preview-3 {
    transform: rotate(-5deg) translateY(-4px);
}

/* Placeholder SVG */
.folder-placeholder {
    position: absolute;
    top: 0;
    left: 0;
}

.folder-info {
    text-align: center;
}

.folder-name {
    font-size: 22px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 8px 0;
}

.folder-count {
    font-size: 14px;
    color: var(--text-secondary);
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.folder-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: color-mix(in srgb, var(--gallerie-primary) 60%, transparent);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
    border-radius: 16px;
}

.folder-overlay svg {
    color: white;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

/* ==================== IMAGE GALLERY ==================== */

.gallery-header {
    display: flex;
    align-items: center;
    gap: 24px;
    margin-bottom: 40px;
    flex-wrap: wrap;
    justify-content: space-between;
}

.gallery-header > div:first-child {
    display: flex;
    align-items: center;
    gap: 24px;
    flex: 1;
    min-width: 0;
}

.back-button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background: var(--bg-white);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-size: 16px;
    font-weight: 500;
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.back-button:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background-color: var(--bg-white);
    transform: translateX(-4px);
    box-shadow: var(--shadow-md);
}

.back-button svg {
    transition: var(--transition);
}

.back-button:hover svg {
    transform: translateX(-4px);
}

.back-button:hover svg {
    transform: translateX(-4px);
}

/* === View Mode Selector === */
.view-mode-selector {
    display: flex;
    gap: 8px;
    background: white;
    padding: 6px;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.view-mode-btn {
    padding: 10px;
    background: transparent;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    color: var(--text-secondary);
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.view-mode-btn:hover {
    background: var(--bg-light);
    color: var(--text-primary);
}

.view-mode-btn.active {
    background: var(--primary-color);
    color: white;
}

.view-mode-btn svg {
    display: block;
}

/* === Images Container === */
.images-container {
    width: 100%;
}

/* === Grid View (Uniforme) === */
.view-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 24px;
}

.view-grid .image-item {
    animation: fadeInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1) backwards;
}

.view-grid .image-wrapper {
    position: relative;
    aspect-ratio: 1;
    overflow: hidden;
    border-radius: 12px;
    cursor: pointer;
    background: var(--bg-light);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.view-grid .lazy-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    background: rgba(0, 0, 0, 0.75);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
    backdrop-filter: blur(8px);
}

/* === Masonry View (Flex Columns) === */
.masonry-container {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}
.masonry-col {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.masonry-col .image-item {
    width: 100%;
    animation: fadeInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1) backwards;
}
.masonry-col .image-wrapper {
    position: relative;
    overflow: hidden;
    border-radius: 12px;
    cursor: pointer;
    background: var(--bg-light);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}
.masonry-col .lazy-image {
    width: 100%;
    height: auto;
    display: block;
}

video.lazy-image {
    background: #000;
}

/* === List View === */
.view-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    max-width: 1000px;
    margin: 0 auto;
}

.view-list .image-item {
    display: flex;
    gap: 20px;
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    animation: fadeInUp 0.6s cubic-bezier(0.4, 0, 0.2, 1) backwards;
}

.view-list .image-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateX(4px);
}

.view-list .image-wrapper {
    width: 200px;
    height: 140px;
    flex-shrink: 0;
    position: relative;
    overflow: hidden;
    cursor: pointer;
    background: var(--bg-light);
}

.view-list .lazy-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.view-list .image-info {
    flex: 1;
    padding: 20px;
    display: flex;
    align-items: center;
}

.view-list .image-info h4 {
    margin: 0;
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

/* === Styles communs pour image-wrapper === */
.view-grid .image-wrapper:hover,
.masonry-col .image-wrapper:hover,
.view-list .image-wrapper:hover {
    box-shadow: var(--shadow-lg);
    transform: scale(1.02);
}

.view-grid .image-wrapper:hover .image-overlay,
.masonry-col .image-wrapper:hover .image-overlay,
.view-list .image-wrapper:hover .image-overlay {
    opacity: 1;
}

.view-grid .image-wrapper:hover img,
.masonry-col .image-wrapper:hover img {
    transform: scale(1.05);
}

.lazy-image {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    background: linear-gradient(
        90deg,
        var(--bg-light) 0%,
        #e5e7eb 50%,
        var(--bg-light) 100%
    );
    background-size: 200% 100%;
    animation: loading 1.5s ease-in-out infinite;
}

.lazy-image.loaded,
.lazy-image[src]:not([src=""]) {
    animation: none;
    background: transparent;
}

@keyframes loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.image-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: var(--transition);
}

.image-overlay svg {
    color: white;
    filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.3));
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: scale(0.8); }
    to { opacity: 1; transform: scale(1); }
}

/* === Loading more === */
.loading-more,
.end-message,
.load-more-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px;
    color: var(--text-secondary);
}

.loading-more p,
.end-message p {
    margin: 12px 0 0 0;
    font-size: 16px;
}

.load-more-button {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 14px 32px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
}

.load-more-button:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.load-more-button:active {
    transform: translateY(0);
}

/* ==================== LIGHTBOX ==================== */

.lightbox-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.95);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
}

.lightbox-close {
    position: fixed;
    top: 20px;
    right: 20px;
    width: 56px;
    height: 56px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    z-index: 10001;
}

.lightbox-close:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: rotate(90deg);
}

.lightbox-nav {
    position: fixed;
    top: 50%;
    transform: translateY(-50%);
    width: 56px;
    height: 56px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    z-index: 10001;
}

.lightbox-prev {
    left: 20px;
}

.lightbox-next {
    right: 20px;
}

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

.lightbox-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.lightbox-image {
    max-width: 100%;
    max-height: 80vh;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

video.lightbox-image {
    background: #000;
}

.lightbox-info {
    text-align: center;
    color: white;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    padding: 16px 24px;
    border-radius: 12px;
}

.lightbox-info h3 {
    margin: 0 0 8px 0;
    font-size: 18px;
    font-weight: 600;
}

.lightbox-info p {
    margin: 0;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
}

/* === Transitions === */
.lightbox-enter-active,
.lightbox-leave-active {
    transition: opacity 0.3s ease;
}

.lightbox-enter-from,
.lightbox-leave-to {
    opacity: 0;
}

.slide-enter-active {
    transition: all 0.3s ease;
}

.slide-leave-active {
    transition: all 0.3s ease;
    position: absolute;
}

.slide-enter-from {
    transform: translateX(100px);
    opacity: 0;
}

.slide-leave-to {
    transform: translateX(-100px);
    opacity: 0;
}

/* ==================== RESPONSIVE ==================== */

@media (max-width: 1200px) {
    .view-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    }
    
    .masonry-container {
        gap: 16px;
    }
}

@media (max-width: 900px) {
    .masonry-container {
        gap: 12px;
    }
    
    .masonry-col {
        gap: 12px;
    }
}

@media (max-width: 768px) {
    .gallery-title {
        font-size: 24px;
    }
    
    .gallery-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .view-mode-selector {
        align-self: flex-end;
    }
    
    .folders-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
        gap: 20px;
    }
    
    .folder-card {
        padding: 20px;
    }
    
    .folder-icon {
        width: 160px;
        height: 120px;
    }
    
    .view-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
        gap: 16px;
    }
    
    .view-list .image-wrapper {
        width: 120px;
        height: 90px;
    }
    
    .view-list .image-info {
        padding: 12px;
    }
    
    .view-list .image-info h4 {
        font-size: 16px;
    }
    
    .lightbox-nav,
    .lightbox-close {
        width: 44px;
        height: 44px;
    }
    
    .lightbox-nav svg {
        width: 28px;
        height: 28px;
    }
    
    .lightbox-prev {
        left: 10px;
    }
    
    .lightbox-next {
        right: 10px;
    }
    
    .lightbox-close {
        top: 10px;
        right: 10px;
    }
}

@media (max-width: 480px) {
    .gallerie-container {
        padding: 20px 12px;
    }
    
    .folders-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .gallery-header {
        gap: 12px;
    }
    
    .view-grid {
        grid-template-columns: 1fr;
    }
    
    .view-list .image-item {
        flex-direction: column;
    }
    
    .view-list .image-wrapper {
        width: 100%;
        height: 200px;
    }
    
    .back-button {
        width: 100%;
        justify-content: center;
    }
    
    .view-mode-selector {
        width: 100%;
        justify-content: center;
    }
}

/* === Lazy loading observer === */
.lazy-image[data-src] {
    opacity: 0;
    transition: opacity 0.5s ease;
}

.lazy-image[src] {
    opacity: 1;
}