.ns-service-calculator {
    margin: 24px 0;
    padding: 24px;
    border: 1px solid rgba(128, 128, 128, 0.25);
    border-radius: 16px;
}

.ns-calc__heading {
    margin: 0 0 20px;
    font-size: 20px;
    line-height: 1.3;
}

.ns-calc__fields {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.ns-calc__field {
    min-width: 0;
}

.ns-calc__label {
    display: flex;
    flex-direction: column;
    gap: 8px;
    font-size: 14px;
    line-height: 1.4;
}

.ns-calc__label input:not([type="checkbox"]),
.ns-calc__label select {
    box-sizing: border-box;
    width: 100%;
    min-height: 44px;
    padding: 10px 12px;
    border: 1px solid rgba(128, 128, 128, 0.4);
    border-radius: 8px;
    background: transparent;
    color: inherit;
    font: inherit;
}

.ns-calc__label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin: 4px 0;
    accent-color: currentColor;
}

.ns-calc__total {
    margin-top: 22px;
    font-size: 26px;
    font-weight: 700;
    line-height: 1.3;
}

.ns-calc__details {
    margin: 12px 0 0;
    padding-left: 20px;
}

.ns-calc__detail {
    margin: 6px 0;
    font-size: 14px;
}

.ns-calc__status {
    margin-top: 12px;
    font-size: 14px;
    line-height: 1.5;
    opacity: 0.8;
}

@media (max-width: 640px) {
    .ns-service-calculator {
        padding: 18px;
    }

    .ns-calc__fields {
        grid-template-columns: minmax(0, 1fr);
    }

    .ns-calc__total {
        font-size: 23px;
    }
}

/* Fix: dropdown option readability in Windows */
.ns-service-calculator .ns-calc__label select option {
    color: #1f2937;
    background-color: #ffffff;
}