/* Drag and Drop Visual Feedback Styles for Asset Library */

/* Asset dragging state */
.asset-item.dragging {
    opacity: 0.5;
    transform: rotate(2deg) scale(0.95);
    transition: all 0.2s ease;
}

/* Folder drop zone states */
.folder-item.drag-over {
    background: linear-gradient(135deg, #10b981, #059669);
    transform: scale(1.05);
    box-shadow: 0 8px 25px rgba(16, 185, 129, 0.3);
    border: 2px dashed #ffffff;
    transition: all 0.3s ease;
}

.folder-item.drag-over::before {
    content: "📁 Drop here";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(255, 255, 255, 0.9);
    color: #059669;
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: bold;
    font-size: 12px;
    z-index: 10;
    pointer-events: none;
}

/* Main library drop zone */
#assetGrid.drag-over-main {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(5, 150, 105, 0.1));
    border: 2px dashed #10b981;
    border-radius: 12px;
    position: relative;
}

#assetGrid.drag-over-main::before {
    content: "📚 Drop to move to Main Library";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(16, 185, 129, 0.9);
    color: white;
    padding: 12px 24px;
    border-radius: 25px;
    font-weight: bold;
    font-size: 14px;
    z-index: 10;
    pointer-events: none;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

/* Draggable cursor */
.asset-item[draggable="true"] {
    cursor: grab;
}

.asset-item[draggable="true"]:active {
    cursor: grabbing;
}

/* Folder item positioning for drop zone feedback */
.folder-item {
    position: relative;
    transition: all 0.3s ease;
}

/* Hover states for better UX */
.folder-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* Asset grid spacing for drop zones */
#assetGrid {
    min-height: 200px;
    position: relative;
}

/* Drag feedback animations */
@keyframes dragPulse {
    0%, 100% { 
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4);
    }
    50% { 
        box-shadow: 0 0 0 10px rgba(16, 185, 129, 0);
    }
}

.folder-item.drag-over {
    animation: dragPulse 1.5s infinite;
}

/* Success feedback animation */
@keyframes successMove {
    0% { 
        background: #10b981;
        transform: scale(1);
    }
    50% { 
        background: #059669;
        transform: scale(1.02);
    }
    100% { 
        background: initial;
        transform: scale(1);
    }
}

.folder-item.move-success {
    animation: successMove 0.6s ease;
}

/* Error feedback animation */
@keyframes errorShake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

.folder-item.move-error {
    animation: errorShake 0.5s ease;
    border: 2px solid #ef4444;
}

/* Upload Progress with Previews Styles */
.upload-progress-container.enhanced {
    background: #ffffff;
    border: 2px solid #3b82f6;
    border-radius: 12px;
    padding: 20px;
    margin: 20px auto;
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.3);
    max-width: 600px;
    position: fixed !important;
    top: 80px !important;
    left: 50% !important;
    transform: translateX(-50%) !important;
    z-index: 999999 !important; /* Ensure it appears above everything */
    animation: slideInFromTop 0.3s ease-out;
}

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

.upload-progress-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.upload-progress-header h4 {
    margin: 0;
    color: #374151;
    font-size: 16px;
    font-weight: 600;
}

.upload-progress-close {
    background: none;
    border: none;
    font-size: 20px;
    color: #9ca3af;
    cursor: pointer;
    padding: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.2s ease;
}

.upload-progress-close:hover {
    background: #f3f4f6;
    color: #374151;
}

.upload-previews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 12px;
    margin-bottom: 16px;
    max-height: 200px;
    overflow-y: auto;
}

.upload-preview-item {
    display: flex;
    flex-direction: column;
    background: #f9fafb;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    padding: 8px;
    transition: all 0.2s ease;
}

.upload-preview-image {
    width: 100%;
    height: 80px;
    margin-bottom: 8px;
    border-radius: 6px;
    overflow: hidden;
}

.upload-preview-placeholder {
    width: 100%;
    height: 100%;
    background: #f3f4f6;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    border: 2px dashed #d1d5db;
}

.loading-spinner {
    width: 20px;
    height: 20px;
    border: 2px solid #e5e7eb;
    border-top: 2px solid #3b82f6;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.upload-preview-info {
    flex: 1;
}

.upload-preview-name {
    font-size: 12px;
    font-weight: 500;
    color: #374151;
    margin-bottom: 2px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.upload-preview-size {
    font-size: 10px;
    color: #6b7280;
    margin-bottom: 4px;
}

.upload-preview-status {
    font-size: 10px;
    color: #6b7280;
    font-weight: 500;
}

.upload-progress-bar {
    width: 100%;
    height: 8px;
    background: #e5e7eb;
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 8px;
}

.upload-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #3b82f6, #1d4ed8);
    border-radius: 4px;
    transition: width 0.3s ease;
    position: relative;
}

.upload-progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.upload-progress-text {
    text-align: center;
    font-size: 14px;
    color: #374151;
    font-weight: 500;
}

/* Single file preview layout for small uploads */
.upload-previews-grid:has(.upload-preview-item:only-child) {
    grid-template-columns: 1fr;
    max-width: 200px;
    margin: 0 auto 16px auto;
}

.upload-preview-item:only-child .upload-preview-image {
    height: 120px;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .folder-item.drag-over::before,
    #assetGrid.drag-over-main::before {
        font-size: 12px;
        padding: 8px 16px;
    }
    
    .upload-progress-container.enhanced {
        margin: 10px;
        padding: 16px;
        max-width: calc(100vw - 20px);
    }
    
    .upload-previews-grid {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
        gap: 8px;
        max-height: 150px;
    }
    
    .upload-preview-image {
        height: 60px;
    }
    
    .upload-preview-item:only-child .upload-preview-image {
        height: 100px;
    }
}