An unexpected error occurred during factorization. Please check your input. ${error.message || ''}

`; downloadBtn.style.display = 'none'; factorizationResult = null; } } }); downloadBtn.addEventListener('click', downloadPDF); // Add input listeners to clear errors (basic) coefficientsContainer.addEventListener('input', (e) => { if (e.target.tagName === 'INPUT') { e.target.style.borderColor = ''; if (resultsDiv.querySelector('.pft-error')) { resultsDiv.innerHTML = '

Enter coefficients and click "Factorize".

'; downloadBtn.style.display = 'none'; factorizationResult = null; } } }); // --- Initial Setup --- generateInputs(degreeSelector.value); // Initialize with default degree })(); // IIFE