/* ==========================================================================
   LUX&GO — Membership / Understanding Your Usage
   ========================================================================== */

.membership-usage {
    padding-block: clamp(40px, 3.4vw, 58px);
    background-color: var(--color-off-white);
}

/* Header ---------------------------------------------------------------------- */

.membership-usage__header {
    display: grid;
    grid-template-columns: repeat(var(--grid-columns), 1fr);
    column-gap: var(--grid-gap);
    align-items: end;
    margin-bottom: clamp(24px, 2.2vw, 40px);
}

.membership-usage__heading {
    grid-column: 1 / 7;
}

.membership-usage__eyebrow {
    font-family: var(--font-body);
    font-weight: var(--fw-semibold);
    font-size: clamp(0.6875rem, 0.65rem + 0.1vw, 0.8125rem);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-lux-blue);
}

.membership-usage__title {
    margin-top: clamp(12px, 1.1vw, 18px);
    font-family: var(--font-heading);
    font-weight: var(--fw-medium);
    font-size: clamp(2.125rem, 1.8rem + 1vw, 3rem);
    line-height: 1.08;
    letter-spacing: -0.01em;
    text-transform: uppercase;
    color: var(--color-text);
}

.membership-usage__title-line {
    display: block;
}

.membership-usage__copy {
    grid-column: 8 / 13;
    max-width: 400px;
    font-family: var(--font-body);
    font-weight: var(--fw-regular);
    font-size: var(--fs-body);
    line-height: var(--lh-body);
    color: var(--color-text-muted);
}

/* Comparison ------------------------------------------------------------------- */

/* Two conditions read side by side, separated by a hairline — never boxed. */
/* Three rates side by side, each separated by the same hairline. */
.membership-usage__comparison {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 1px minmax(0, 1fr) 1px minmax(0, 1fr);
    column-gap: clamp(20px, 2.4vw, 44px);
    padding-top: clamp(20px, 1.8vw, 30px);
    border-top: var(--border-thin);
}

/* The member rate is the one the programme is selling, so it carries the
   brand colour while the other two stay in text colour. */
.membership-usage__case--highlight .membership-usage__amount {
    color: var(--color-lux-blue);
}

.membership-usage__divider {
    background-color: var(--color-border);
}

.membership-usage__case-label {
    font-family: var(--font-body);
    font-weight: var(--fw-semibold);
    font-size: clamp(0.625rem, 0.6rem + 0.08vw, 0.75rem);
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.membership-usage__amount {
    font-family: var(--font-heading);
    font-weight: var(--fw-medium);
    font-size: clamp(1.875rem, 1.6rem + 0.9vw, 2.625rem);
    line-height: 1;
    letter-spacing: -0.02em;
    color: var(--color-text);
}

.membership-usage__case > .membership-usage__amount {
    margin-top: clamp(14px, 1.3vw, 22px);
}

.membership-usage__unit {
    margin-top: 8px;
    font-family: var(--font-body);
    font-weight: var(--fw-semibold);
    font-size: clamp(0.75rem, 0.72rem + 0.1vw, 0.875rem);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-text);
}

/* The unit belongs to the total, so it tracks the right-aligned amount. */
.membership-usage__breakdown + .membership-usage__unit {
    text-align: right;
}

.membership-usage__caption {
    margin-top: 4px;
    font-family: var(--font-body);
    font-weight: var(--fw-regular);
    font-size: clamp(0.75rem, 0.72rem + 0.1vw, 0.875rem);
    color: var(--color-text-muted);
}

.membership-usage__note {
    margin-top: clamp(16px, 1.4vw, 24px);
    padding-top: clamp(12px, 1.1vw, 18px);
    border-top: var(--border-thin);
    font-family: var(--font-body);
    font-weight: var(--fw-regular);
    font-size: clamp(0.75rem, 0.72rem + 0.1vw, 0.875rem);
    line-height: 1.55;
    color: var(--color-text-muted);
}

/* Breakdown so the arithmetic stays visible: 750 + 500 = 1.250 ------------------ */

.membership-usage__breakdown {
    margin-top: clamp(14px, 1.3vw, 22px);
}

.membership-usage__row {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 16px;
    padding-block: clamp(6px, 0.6vw, 10px);
}

.membership-usage__row--total {
    align-items: baseline;
    margin-top: clamp(6px, 0.6vw, 10px);
    padding-top: clamp(10px, 1vw, 16px);
    border-top: var(--border-thin);
}

.membership-usage__row-label {
    font-family: var(--font-body);
    font-weight: var(--fw-regular);
    font-size: clamp(0.75rem, 0.72rem + 0.1vw, 0.875rem);
    color: var(--color-text-muted);
}

.membership-usage__row--total .membership-usage__row-label {
    font-weight: var(--fw-semibold);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-text);
}

.membership-usage__row-value {
    font-family: var(--font-heading);
    font-weight: var(--fw-medium);
    font-size: clamp(1rem, 0.94rem + 0.2vw, 1.25rem);
    letter-spacing: -0.01em;
    color: var(--color-text);
}

/* Tablet and mobile ------------------------------------------------------------- */

/* Side-by-side comparison becomes a vertical one, split by the same hairline. */
@media (max-width: 1023px) {
    .membership-usage__header {
        grid-template-columns: minmax(0, 1fr);
        row-gap: clamp(16px, 2.4vw, 24px);
    }

    .membership-usage__heading,
    .membership-usage__copy {
        grid-column: 1 / -1;
        max-width: 560px;
    }

    .membership-usage__comparison {
        grid-template-columns: minmax(0, 1fr);
        row-gap: clamp(24px, 4vw, 34px);
    }

    /* The 1px track was vertical; as a row it needs its height stated. */
    .membership-usage__divider {
        height: 1px;
    }
}

@media (max-width: 767px) {
    .membership-usage__title {
        font-size: clamp(1.875rem, 1.6rem + 1.2vw, 2.375rem);
    }
}