#hc-polinom-regresyon-hesaplama textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-family: monospace;
    resize: vertical;
}

#hc-polinom-regresyon-hesaplama #hc-poly-formula-display {
    margin-bottom: 15px;
    font-size: 1.05rem;
    color: #2c3e50;
    line-height: 1.5;
}