/* Treemap container and header */
.benefits-treemap {
    width: 100%;
    min-width: 0;
    margin: 15px auto;
    font-family: inherit;
}

.benefits-treemap__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
    margin-bottom: 1rem;
}

.benefits-treemap__header h4 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 700;
}

.benefits-treemap__total {
    text-align: right;
    white-space: nowrap;
}

.benefits-treemap__total strong {
    display: block;
    color: var(--color-primary);
    font-size: 42px;
    font-weight: 800;
    line-height: 1.1;
}

/* Chart layout */
.benefits-treemap__chart {
    position: relative;
    width: 100%;
    aspect-ratio: 1.4 / 1;
    overflow: hidden;
}

/* Tiles */
.benefit-tile {
    position: absolute;
    box-sizing: border-box;
    overflow: hidden;
    padding: 1rem;
    color: #fff;
    transform-origin: center center;

    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;

    opacity: 0;
}

.benefit-tile__value,
.benefit-tile__title {
    min-width: 0;
    max-width: 100%;
    overflow-wrap: break-word;
}

.benefit-tile__value {
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 0.5rem;
}

.benefit-tile__title {
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.3;
    word-break: normal;
}

/* Small tiles */
.benefit-tile.is-small .benefit-tile__value {
    font-size: 1.25rem;
}

/* Tiny tiles */
.benefit-tile.is-tiny {
    padding: 0.4rem;
}

.benefit-tile.is-tiny .benefit-tile__value {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

/* Numbered references */
.benefit-tile__reference {
    font-size: clamp(1.25rem, 2vw, 1.75rem);
    font-weight: 700;
    line-height: 1.2;
    color: #fff;
}

/* Footnote legend */
.benefits-treemap__legend {
    margin-top: 1.5rem;
    opacity: 1;
    transition: opacity 600ms ease-in-out;
}

.benefits-treemap__legend:empty {
    display: none;
}

.benefits-treemap.is-animating .benefits-treemap__legend {
    opacity: 0;
}

.benefits-treemap__legend-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 1.5rem;

    list-style: none;
    padding: 0;
    margin: 0;
    margin-bottom: 20px;
}

.benefits-treemap__legend-list li {
    display: flex;
    align-items: flex-start;
    flex: 1 1 calc(50% - 0.75rem);
    gap: 0.75rem;
    min-width: 0;
    line-height: 22px;
}

.benefits-treemap__legend-list li p {
    margin: 5px 0 0;
}

.benefits-treemap__legend-number {
    display: flex;
    flex: 0 0 2rem;
    align-items: center;
    justify-content: center;
    min-height: 2rem;

    background: #333;
    color: #fff;
    font-weight: 700;
}

/* Animation: hide labels until individual tiles finish */
/* Text starts hidden without fading out */
.benefit-tile.is-pending .benefit-tile__value,
.benefit-tile.is-pending .benefit-tile__title,
.benefit-tile.is-pending .benefit-tile__reference {
    opacity: 0;
    transition: none;
}

/* Fade in only when the tile finishes expanding */
.benefit-tile__value,
.benefit-tile__title,
.benefit-tile__reference {
    opacity: 1;
    transition: opacity 350ms ease-in-out;
}

/* Responsive layout */
@media (max-width: 700px) {
    .benefits-treemap__chart {
        aspect-ratio: 1 / 1.3;
    }

    .benefit-tile {
        padding: 0.75rem;
    }
}

@media (max-width: 600px) {
    .benefits-treemap__legend-list li {
        flex-basis: 100%;
    }
}

/* Accessibility: reduced motion */
@media (prefers-reduced-motion: reduce) {
    .benefits-treemap__legend,
    .benefit-tile__value,
    .benefit-tile__title,
    .benefit-tile__reference {
        transition: none;
    }
    
    .benefit-tile {
        opacity: 1;
    }

    .benefits-treemap__legend {
        transition: none;
    }
}