.step {
    display: none;
    min-height: 300px; /* Altezza minima uguale per tutti gli step */
    padding: 20px;
    border: 1px solid #ddd;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    position: relative;
}
.step.active {
    display: block;
}
.btn-option {
    background-color: white;
    border: 1px solid #007bff;
    color: #007bff;
    margin: 5px;
}
.btn-option.active {
    background-color: #007bff;
    color: white;
}
.form-group { text-align: center; }
.calculator-slider-container {
    position: relative;
    width: 100%;
    max-width: 600px;
    margin: auto;
}
#slider-value{
    margin-right: 1rem;
}
.slider-value {
    position: absolute;
    left: -50px;
    top: 50%;
    transform: translateY(-50%);
}
.form-navigation {
    position: absolute;
    bottom: 20px;
    left: 0;
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 20px;
}