.pdf-container { background: #f8fafc; border: 1px solid #e2e8f0; border-radius: 8px; padding: 25px; display: flex; flex-direction: column; gap: 20px; }
            
            /* Área de Upload / Dropzone */
            .dropzone { border: 2px dashed #cbd5e1; border-radius: 8px; background: #fff; padding: 35px 20px; text-align: center; cursor: pointer; transition: all 0.2s; display: flex; flex-direction: column; align-items: center; gap: 10px; }
            .dropzone:hover, .dropzone.dragover { border-color: #2563eb; background: #eff6ff; }
            .dropzone-icon { font-size: 2.5rem; }
            .dropzone-text { font-size: 1rem; font-weight: 600; color: #1e293b; }
            .dropzone-subtext { font-size: 0.85rem; color: #64748b; }
            #fileInput { display: none; }

            /* Lista de Arquivos Selecionados */
            .file-list-section { background: #fff; border: 1px solid #e2e8f0; border-radius: 8px; padding: 20px; display: flex; flex-direction: column; gap: 15px; margin-top: 10px;}
            .section-title { font-size: 1.05rem; font-weight: 600; color: #1e293b; border-bottom: 2px solid #f1f5f9; padding-bottom: 8px; display: flex; justify-content: space-between; align-items: center; }
            
            .files-container { display: flex; flex-direction: column; gap: 8px; max-height: 300px; overflow-y: auto; padding-right: 5px; }
            .file-item { display: flex; align-items: center; justify-content: space-between; background: #f1f5f9; border: 1px solid #e2e8f0; border-radius: 6px; padding: 10px 15px; font-size: 0.9rem; font-weight: 600; color: #334155; }
            .file-info { display: flex; align-items: center; gap: 10px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
            .file-name { overflow: hidden; text-overflow: ellipsis; }
            .file-size { font-size: 0.75rem; color: #64748b; font-weight: normal; }
            
            .file-actions { display: flex; gap: 6px; }
            .icon-btn { background: none; border: none; cursor: pointer; font-size: 1rem; padding: 4px; border-radius: 4px; transition: background 0.2s; }
            .icon-btn:hover { background: #e2e8f0; }
            .icon-btn.delete { color: #dc2626; }
            .icon-btn.delete:hover { background: #fee2e2; }

            /* Ações Principais */
            .merge-actions { display: flex; gap: 10px; justify-content: flex-end; }
            .btn-primary { background-color: #2563eb; color: white; }
            .btn-primary:hover { background-color: #1d4ed8; }
            .btn-primary:disabled { background-color: #94a3b8; cursor: not-allowed; }
            .btn-danger { background-color: #ef4444; color: white; }
            .btn-danger:hover { background-color: #dc2626; }

            /* Status de Carregamento */
            #loadingStatus { display: none; text-align: center; font-weight: 600; color: #2563eb; font-size: 0.95rem; }