/**
 * Enhanced DocStrange UI Styles
 * Side-by-side preview, format tabs, batch upload, history
 */

/* ===== FILE UPLOAD ENHANCEMENTS ===== */
.file-list {
    margin: 16px 0;
    max-height: 300px;
    overflow-y: auto;
}

.file-item {
    display: flex;
    align-items: center;
    padding: 12px;
    margin: 8px 0;
    background: #f8f9fa;
    border-radius: 8px;
    border: 1px solid #e5e7eb;
    transition: all 0.2s;
}

.file-item:hover {
    background: #f1f5ff;
    border-color: #6366f1;
}

.file-icon {
    font-size: 24px;
    margin-right: 12px;
}

.file-info {
    flex: 1;
}

.file-name {
    font-weight: 500;
    color: #1f2937;
    font-size: 14px;
}

.file-size {
    font-size: 12px;
    color: #6b7280;
    margin-top: 2px;
}

.btn-remove {
    background: #ef4444;
    color: white;
    border: none;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-remove:hover {
    background: #dc2626;
    transform: scale(1.1);
}

/* ===== FILE PREVIEW PANEL ===== */
.file-preview-panel {
    background: white;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    padding: 16px;
    margin: 16px 0;
    display: none;
}

.file-preview-panel.active {
    display: block;
}

.file-preview-content {
    margin-top: 12px;
    max-height: 400px;
    overflow: auto;
}

.pdf-preview {
    text-align: center;
    padding: 32px;
}

.pdf-icon {
    font-size: 64px;
    margin-bottom: 16px;
}

.pdf-name {
    font-weight: 500;
    color: #1f2937;
    margin-bottom: 8px;
}

.pdf-size {
    color: #6b7280;
    font-size: 14px;
}

/* ===== FORMAT TABS ===== */
.format-tabs {
    display: flex;
    gap: 8px;
    margin: 16px 0;
    border-bottom: 2px solid #e5e7eb;
    padding-bottom: 8px;
}

.format-tab {
    padding: 8px 16px;
    background: white;
    border: 1px solid #e5e7eb;
    border-radius: 6px 6px 0 0;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    color: #6b7280;
    transition: all 0.2s;
}

.format-tab:hover {
    background: #f1f5ff;
    color: #6366f1;
}

.format-tab.active {
    background: #6366f1;
    color: white;
    border-color: #6366f1;
}

/* ===== SIDE-BY-SIDE PREVIEW ===== */
.preview-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin: 16px 0;
}

.preview-pane {
    background: white;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    overflow: hidden;
}

.preview-header {
    background: #f8f9fa;
    padding: 12px 16px;
    border-bottom: 1px solid #e5e7eb;
    font-weight: 500;
    color: #1f2937;
}

.preview-content {
    padding: 16px;
    max-height: 600px;
    overflow: auto;
}

/* ===== METADATA DISPLAY ===== */
.metadata-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 12px;
    margin: 16px 0;
}

.meta-item {
    background: #f8f9fa;
    padding: 12px;
    border-radius: 6px;
    border: 1px solid #e5e7eb;
}

.meta-label {
    font-size: 12px;
    color: #6b7280;
    margin-bottom: 4px;
}

.meta-value {
    font-weight: 500;
    color: #1f2937;
    font-size: 14px;
}

/* ===== EXTRACTION PROGRESS ===== */
.extraction-progress {
    display: none;
    text-align: center;
    padding: 32px;
}

.extraction-progress.active {
    display: block;
}

.spinner {
    border: 3px solid #f3f3f3;
    border-top: 3px solid #6366f1;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto 16px;
}

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

/* ===== BATCH PROCESSING ===== */
.batch-progress {
    display: none;
    background: white;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    padding: 24px;
    margin: 16px 0;
}

.batch-progress.active {
    display: block;
}

.batch-progress-bar {
    background: #e5e7eb;
    border-radius: 4px;
    height: 8px;
    margin: 16px 0;
    overflow: hidden;
}

.batch-progress-fill {
    background: linear-gradient(90deg, #6366f1, #8b5cf6);
    height: 100%;
    transition: width 0.3s;
}

.batch-file-list {
    margin: 16px 0;
    max-height: 300px;
    overflow-y: auto;
}

.batch-file-item {
    display: flex;
    align-items: center;
    padding: 8px 12px;
    margin: 4px 0;
    background: #f8f9fa;
    border-radius: 4px;
    font-size: 14px;
}

.batch-file-item.status-success {
    border-left: 3px solid #10b981;
}

.batch-file-item.status-error {
    border-left: 3px solid #ef4444;
}

.batch-file-item.status-processing {
    border-left: 3px solid #f59e0b;
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* ===== EXTRACTION HISTORY ===== */
.history-panel {
    background: white;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    padding: 16px;
    margin: 16px 0;
    max-height: 400px;
    overflow-y: auto;
}

.history-item {
    display: flex;
    align-items: center;
    padding: 12px;
    margin: 8px 0;
    background: #f8f9fa;
    border-radius: 6px;
    border: 1px solid #e5e7eb;
    cursor: pointer;
    transition: all 0.2s;
}

.history-item:hover {
    background: #f1f5ff;
    border-color: #6366f1;
}

.history-icon {
    font-size: 20px;
    margin-right: 12px;
}

.history-info {
    flex: 1;
}

.history-name {
    font-weight: 500;
    color: #1f2937;
    font-size: 14px;
}

.history-meta {
    font-size: 12px;
    color: #6b7280;
    margin-top: 2px;
}

.history-status {
    font-size: 12px;
    font-weight: 500;
    padding: 4px 8px;
    border-radius: 4px;
}

.history-status.status-success {
    background: #d1fae5;
    color: #065f46;
}

.history-status.status-error {
    background: #fee2e2;
    color: #991b1b;
}

/* ===== ERROR DISPLAY ===== */
.error-panel {
    display: none;
    background: #fee2e2;
    border: 1px solid #ef4444;
    border-radius: 8px;
    padding: 16px;
    margin: 16px 0;
}

.error-panel.active {
    display: block;
}

.error-content {
    display: flex;
    align-items: center;
    gap: 12px;
}

.error-icon {
    font-size: 24px;
}

.error-message {
    flex: 1;
    color: #991b1b;
    font-weight: 500;
}

/* ===== EXPORT BUTTONS ===== */
.export-buttons {
    display: flex;
    gap: 8px;
    margin: 16px 0;
}

.export-btn {
    padding: 8px 16px;
    background: white;
    border: 1px solid #e5e7eb;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    color: #6b7280;
    transition: all 0.2s;
}

.export-btn:hover {
    background: #f1f5ff;
    color: #6366f1;
    border-color: #6366f1;
}

/* ===== API USAGE DASHBOARD ===== */
.api-usage-panel {
    background: white;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    padding: 16px;
    margin: 16px 0;
}

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

.api-usage-title {
    font-weight: 500;
    color: #1f2937;
    font-size: 16px;
}

.api-usage-stat {
    font-size: 24px;
    font-weight: 600;
    color: #6366f1;
}

.api-usage-bar {
    background: #e5e7eb;
    border-radius: 4px;
    height: 8px;
    margin: 12px 0;
    overflow: hidden;
}

.api-usage-fill {
    background: linear-gradient(90deg, #10b981, #059669);
    height: 100%;
    transition: width 0.3s;
}

.api-usage-details {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-top: 12px;
}

.api-usage-detail {
    text-align: center;
}

.api-usage-detail-value {
    font-weight: 600;
    color: #1f2937;
    font-size: 18px;
}

.api-usage-detail-label {
    font-size: 12px;
    color: #6b7280;
    margin-top: 4px;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1200px) {
    .preview-container {
        grid-template-columns: 1fr;
    }
    
    .metadata-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .format-tabs {
        flex-wrap: wrap;
    }
    
    .metadata-grid {
        grid-template-columns: 1fr;
    }
    
    .api-usage-details {
        grid-template-columns: 1fr;
    }
}