.calculator-box {
    background-color: #f9f9f9;
    border: 1px solid #ccc;
    padding: 1rem;
    border-radius: 8px;
    max-width: 400px;
    align-content: center;
}

.input-field {
    width: 100%;
    padding: 0.5rem;
    margin-bottom: 1rem;
    box-sizing: border-box;
}