.calculator {
    padding: 2.5rem 1.875rem;
    border: 1px solid #d7d9da;
}

.calculator__title {
    margin-bottom: 2.5rem;
    font-size: 1.125rem;
    font-weight: 700;
}

.calculator__subtitle {
    margin-bottom: .625rem;
    font-size: 1rem;
    font-weight: 700;
}

.calculator__item {
    position: relative;
    display: inline-block;
    color: #384044;
}

.calculator__label {
    font-size: 16px;
}

.calculator__item._radio {
    display: flex;
}

.calculator__item._radio .calculator__label {
    position: relative;
    padding-left: .75rem;
    margin: 0;
    padding: 3px 2px;
    border-bottom: 1px solid transparent;
    cursor: pointer;
    color: #888c8f;
    font-size: 14px;
    font-weight: 500;
    transition: .35s;
}

.calculator__input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
    pointer-events: none;
}

.calculator__item._radio .calculator__label {
    position: relative;
    padding-left: 1.5rem;
    cursor: pointer;
    user-select: none;
    line-height: 24px;
}

.calculator__item._radio .calculator__label:before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 15px;
    height: 15px;
    border: 2px solid #ccc;
    border-radius: 50%;
    background-color: #fff;
    transition: all .35s ease;
    box-sizing: border-box;
}

.calculator__item._radio input[type="radio"]:checked ~ .calculator__label:before {
    border-color: var(--primary-color);
    background-color: var(--primary-color);
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3e%3ccircle r='2' fill='%23fff'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: center;
    background-size: 120%;
}

.calculator__item._radio .calculator__label:hover:before {
    border-color: var(--primary-color);
}

.calculator_btns {
    display: flex;
    column-gap: 1rem;
    padding-top: 1.25rem;
}

@media (max-width: 1400px) {
    .calculator__item {
        width: 100%;
    }
}
@media (max-width: 991px) {
    .calculator__title {
        font-size: 16px;
    }
    .calculator__subtitle {
        font-size: 15px;
    }
    .calculator__label {
        font-size: 14px;
    }
}
@media (max-width: 767px) {
    .calculator .col-custom:nth-child(2) {
        padding-top: 1.25rem;
    }
}
@media (max-width: 520px) {
    .calculator__input,
    .calculator__input .form-control {
        width: 100%;
    }
}