/* Opti Documents Frontend Styles */
.opti-documents-frontend {
    background: #1a1d29;
    border-radius: 12px;
    padding: 24px;
    margin: 20px 0;
    color: #e2e8f0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

.documents-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid #2d3748;
}

.documents-header h3 {
    color: #fff;
    font-size: 1.5rem;
    font-weight: 600;
    margin: 0;
}

.documents-controls {
    display: flex;
    gap: 12px;
    align-items: center;
}

.documents-controls input,
.documents-controls select {
    background: #2d3748;
    border: 1px solid #4a5568;
    border-radius: 8px;
    padding: 8px 12px;
    color: #e2e8f0;
    font-size: 14px;
    transition: all 0.2s ease;
}

.documents-controls input:focus,
.documents-controls select:focus {
    outline: none;
    border-color: #8b5cf6;
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
}

.documents-table-container {
    background: #2d3748;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.documents-table {
    width: 100%;
    border-collapse: collapse;
    background: transparent;
}

.documents-table thead {
    background: #374151;
}

.documents-table th {
    padding: 16px;
    text-align: left;
    font-weight: 600;
    color: #f9fafb;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid #4a5568;
}

.documents-table td {
    padding: 16px;
    border-bottom: 1px solid #4a5568;
    vertical-align: middle;
}

.documents-table tbody tr {
    transition: background-color 0.2s ease;
}

.documents-table tbody tr:hover {
    background: rgba(139, 92, 246, 0.05);
}

.document-name {
    display: flex;
    align-items: center;
    gap: 12px;
}

.document-icon {
    width: 32px;
    height: 32px;
    background: #8b5cf6;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: bold;
    color: white;
    text-transform: uppercase;
}

.document-name span {
    font-weight: 500;
    color: #f9fafb;
}

.file-type {
    background: #4c1d95;
    color: #c4b5fd;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
    text-transform: uppercase;
}

.file-size {
    color: #9ca3af;
    font-size: 14px;
}

.upload-date {
    color: #9ca3af;
    font-size: 14px;
}

.document-actions {
    display: flex;
    gap: 8px;
}

.btn-action {
    padding: 6px 12px;
    border: none;
    border-radius: 6px;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.btn-download {
    background: #8b5cf6;
    color: white;
}

.btn-download:hover {
    background: #7c3aed;
    transform: translateY(-1px);
}

.btn-preview {
    background: #1f2937;
    color: #e2e8f0;
    border: 1px solid #4a5568;
}

.btn-preview:hover {
    background: #374151;
    border-color: #6b7280;
}

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: #9ca3af;
}

.empty-state-icon {
    width: 64px;
    height: 64px;
    background: #374151;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-size: 24px;
}

.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid #4a5568;
    border-radius: 50%;
    border-top-color: #8b5cf6;
    animation: spin 1s ease-in-out infinite;
}

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

/* Responsive */
@media (max-width: 768px) {
    .documents-header {
        flex-direction: column;
        gap: 16px;
        align-items: stretch;
    }
    
    .documents-controls {
        flex-direction: column;
    }
    
    .documents-table-container {
        overflow-x: auto;
    }
    
    .documents-table {
        min-width: 600px;
    }
    
    .document-actions {
        flex-direction: column;
    }
}