/* ==================== MODERN FILE CARDS - DESIGN ORANGE/NOIR/BLANC ==================== */

.modern-files-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.modern-file-card {
    background: #FFFFFF;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.07);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 2px solid transparent;
    display: flex;
    flex-direction: column;
    position: relative;
}

.modern-file-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #FF8C00 0%, #FFD700 100%);
    transform: scaleX(0);
    transition: transform 0.3s ease;
    z-index: 10;
}

.modern-file-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(255, 140, 0, 0.15);
    border-color: #FF8C00;
}

.modern-file-card:hover::before {
    transform: scaleX(1);
}

/* ==================== PDF PREVIEW THUMBNAIL ==================== */
.pdf-preview-container {
    position: relative;
    width: 100%;
    height: 140px;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    overflow: hidden;
    border-bottom: 3px solid #FF8C00;
}

.pdf-thumbnail {
    display: none;
    width: 100%;
    height: auto;
    object-fit: cover;
    object-position: top;
    transition: transform 0.3s ease;
}

.modern-file-card:hover .pdf-thumbnail {
    transform: scale(1.05);
}

.pdf-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    color: #64748b;
    font-size: 0.9rem;
}

.pdf-loading i {
    font-size: 2rem;
    color: #FF8C00;
}

.pdf-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;
}

.modern-file-card:hover .pdf-overlay {
    opacity: 1;
}

.preview-btn {
    background: linear-gradient(135deg, #FF8C00 0%, #FFD700 100%);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(255, 140, 0, 0.4);
}

.preview-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(255, 140, 0, 0.6);
}

.preview-btn i {
    font-size: 1.1rem;
}

/* Card Header */
.file-card-header {
    padding: 1rem 1.25rem;
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.file-type-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.15);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    backdrop-filter: blur(10px);
}

.file-type-badge i {
    color: #FF8C00;
    font-size: 1.25rem;
}

.file-type-badge span {
    color: #FFFFFF;
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.file-stats-mini {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.file-stats-mini span {
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

.file-stats-mini i {
    color: #FFD700;
    font-size: 0.875rem;
}

/* Card Body */
.file-card-body {
    padding: 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.modern-file-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: #000000;
    line-height: 1.4;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 2.8rem;
}

.file-category-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, rgba(255, 140, 0, 0.1) 0%, rgba(255, 215, 0, 0.1) 100%);
    border: 1px solid rgba(255, 140, 0, 0.3);
    padding: 0.375rem 0.875rem;
    border-radius: 50px;
    width: fit-content;
}

.file-category-tag i {
    color: #FF8C00;
    font-size: 0.875rem;
}

.file-category-tag span {
    color: #2c3e50;
    font-size: 0.875rem;
    font-weight: 600;
}

.file-metadata {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #7f8c8d;
    font-size: 0.875rem;
    flex-wrap: wrap;
}

.file-metadata i {
    color: #FF8C00;
}

.metadata-divider {
    color: #dee2e6;
    font-weight: 300;
}

.file-description {
    color: #7f8c8d;
    font-size: 0.875rem;
    line-height: 1.6;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Card Actions */
.file-card-actions {
    padding: 1rem 1.5rem;
    background: #f8f9fa;
    border-top: 1px solid #e9ecef;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

.modern-btn {
    padding: 0.75rem 1rem;
    border: none;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.modern-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.5s, height 0.5s;
}

.modern-btn:hover::before {
    width: 300px;
    height: 300px;
}

.modern-btn i,
.modern-btn span {
    position: relative;
    z-index: 1;
}

.btn-view {
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    color: #FFFFFF;
    box-shadow: 0 2px 8px rgba(44, 62, 80, 0.25);
}

.btn-view:hover {
    background: linear-gradient(135deg, #34495e 0%, #2c3e50 100%);
    box-shadow: 0 4px 12px rgba(44, 62, 80, 0.35);
    transform: translateY(-2px);
}

.btn-download {
    background: linear-gradient(135deg, #FF8C00 0%, #FFD700 100%);
    color: #FFFFFF;
    box-shadow: 0 2px 8px rgba(255, 140, 0, 0.25);
}

.btn-download:hover {
    background: linear-gradient(135deg, #FFD700 0%, #FF8C00 100%);
    box-shadow: 0 4px 12px rgba(255, 140, 0, 0.35);
    transform: translateY(-2px);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    background: #FFFFFF;
    border-radius: 16px;
    border: 2px dashed #dee2e6;
}

.empty-icon {
    width: 120px;
    height: 120px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, rgba(255, 140, 0, 0.1) 0%, rgba(255, 215, 0, 0.1) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.empty-icon i {
    font-size: 4rem;
    color: #FF8C00;
}

.empty-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #2c3e50;
    margin: 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .modern-files-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .file-card-header {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }
    
    .file-stats-mini {
        width: 100%;
        justify-content: space-between;
    }
    
    .file-card-actions {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .modern-file-title {
        font-size: 1rem;
    }
    
    .file-card-body {
        padding: 1rem;
    }
    
    .file-card-actions {
        padding: 0.75rem 1rem;
    }
    
    .modern-btn {
        padding: 0.625rem 0.875rem;
        font-size: 0.8125rem;
    }
}

/* Animation d'entrée */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modern-file-card {
    animation: fadeInUp 0.5s ease-out;
    animation-fill-mode: both;
}

.modern-file-card:nth-child(1) { animation-delay: 0.05s; }
.modern-file-card:nth-child(2) { animation-delay: 0.1s; }
.modern-file-card:nth-child(3) { animation-delay: 0.15s; }
.modern-file-card:nth-child(4) { animation-delay: 0.2s; }
.modern-file-card:nth-child(5) { animation-delay: 0.25s; }
.modern-file-card:nth-child(6) { animation-delay: 0.3s; }

/* Badge pour nouveaux fichiers (optionnel) */
.new-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: #FF8C00;
    color: #FFFFFF;
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    z-index: 10;
    box-shadow: 0 2px 8px rgba(255, 140, 0, 0.3);
}