.pdf-container { background: #f8fafc; border: 1px solid #e2e8f0; border-radius: 8px; padding: 20px 15px; display: flex; flex-direction: column; gap: 20px; width: 100%; box-sizing: border-box; }
            
            /* Área de Upload / Dropzone Otimizada */
            .dropzone { border: 2px dashed #cbd5e1; border-radius: 8px; background: #fff; padding: 30px 15px; text-align: center; cursor: pointer; transition: all 0.2s; display: flex; flex-direction: column; align-items: center; gap: 10px; width: 100%; box-sizing: border-box; }
            .dropzone:hover, .dropzone.dragover { border-color: #2563eb; background: #eff6ff; }
            .dropzone-icon { font-size: 2.5rem; }
            .dropzone-text { font-size: 0.95rem; font-weight: 600; color: #1e293b; line-height: 1.4; }
            .dropzone-subtext { font-size: 0.82rem; color: #64748b; }
            #fileInput { display: none; }

            /* Seção de Configuração de Divisão */
            .split-config-section { background: #fff; border: 1px solid #e2e8f0; border-radius: 8px; padding: 15px; display: none; flex-direction: column; gap: 15px; width: 100%; box-sizing: border-box; }
            
            .section-title { font-size: 1rem; font-weight: 600; color: #1e293b; border-bottom: 2px solid #f1f5f9; padding-bottom: 8px; display: flex; justify-content: space-between; align-items: center; gap: 10px; flex-wrap: wrap; }
            
            .file-info-badge { display: flex; align-items: center; justify-content: space-between; background: #f1f5f9; border: 1px solid #e2e8f0; border-radius: 6px; padding: 10px 12px; font-size: 0.85rem; font-weight: 600; color: #334155; gap: 10px; overflow: hidden; }
            .file-info-badge span:first-child { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
            
            .options-group { display: flex; flex-direction: column; gap: 12px; margin-top: 5px; width: 100%; box-sizing: border-box; }
            .radio-label { display: flex; align-items: flex-start; gap: 8px; font-weight: 600; color: #334155; font-size: 0.9rem; cursor: pointer; line-height: 1.4; }
            .radio-label input[type="radio"] { width: 18px; height: 18px; accent-color: var(--primary); cursor: pointer; margin-top: 1px; flex-shrink: 0; }
            
            /* Ajuste dos inputs de intervalo adaptáveis para mobile */
            .range-inputs { display: flex; gap: 8px; align-items: center; padding-left: 26px; flex-wrap: wrap; font-size: 0.88rem; color: #475569; }
            .range-inputs input { width: 75px; padding: 8px; border: 1px solid #cbd5e1; border-radius: 6px; font-weight: 600; text-align: center; background: #f8fafc; color: #1e293b; font-size: 0.95rem; }
            .range-inputs input:focus { border-color: #2563eb; background: #fff; outline: none; }

            /* Ações Principais */
            .split-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 5px; width: 100%; }
            .btn { padding: 12px 20px; border: none; border-radius: 8px; font-size: 0.95rem; font-weight: 600; cursor: pointer; transition: background-color 0.2s; text-align: center; display: flex; align-items: center; justify-content: center; gap: 8px; width: 100%; box-sizing: border-box; }
            .btn-primary { background-color: #2563eb; color: white; }
            .btn-primary:hover { background-color: #1d4ed8; }
            .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: 0.9rem; padding: 5px; }