/* 七指数广度总览：绘图区与两行可交互图例信息带共享布局。 */
.breadth-overview-card {
    display: grid;
    grid-template-rows: minmax(300px, 1fr) auto;
    align-items: stretch;
    justify-content: stretch;
    min-height: 430px;
    padding-bottom: 0 !important;
    overflow: hidden;
}

.breadth-overview-plot {
    width: 100%;
    height: 100%;
    min-width: 0;
    min-height: 300px;
}

.pro-breadth-overview {
    flex: 1 1 auto;
    min-height: 0;
    padding: 0 !important;
}

.breadth-overview-legend {
    display: grid;
    grid-template-columns: repeat(8, minmax(0, 1fr));
    grid-template-rows: repeat(2, minmax(22px, auto));
    align-items: center;
    row-gap: 4px;
    width: 100%;
    min-width: 0;
    min-height: 62px;
    margin-top: 4px;
    padding: 6px 10px 7px;
    overflow: hidden;
    border-top: 1px solid var(--border-subtle);
    color: var(--text-primary);
    background: var(--surface-inset);
}

.breadth-overview-legend-item {
    grid-column: span 2;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
    min-width: 0;
    min-height: 22px;
    padding: 1px 3px;
    border: 1px solid transparent;
    border-radius: 4px;
    color: inherit;
    background: transparent;
    font: inherit;
    font-size: 12px;
    line-height: 18px;
    white-space: nowrap;
    cursor: pointer;
    transition: color 120ms ease, background-color 120ms ease, border-color 120ms ease, opacity 120ms ease;
}

.breadth-overview-legend-item:nth-child(5) {
    grid-row: 2;
    grid-column: 2 / span 2;
}

.breadth-overview-legend-item:nth-child(6) {
    grid-row: 2;
    grid-column: 4 / span 2;
}

.breadth-overview-legend-item:nth-child(7) {
    grid-row: 2;
    grid-column: 6 / span 2;
}

.breadth-overview-legend-item:hover {
    color: var(--text-strong);
    background: var(--surface-muted);
    border-color: var(--border-strong);
}

.breadth-overview-legend-item:focus-visible {
    outline: 2px solid var(--interaction-focus-outer);
    outline-offset: 1px;
    color: var(--text-strong);
    background: color-mix(in srgb, var(--interaction-selected) 14%, transparent);
}

.breadth-overview-legend-line {
    width: 20px;
    flex: 0 0 20px;
    border-top: 2px solid var(--legend-color);
    transition: filter 120ms ease, opacity 120ms ease;
}

.breadth-overview-legend-line.is-dashed {
    border-top-style: dashed;
}

.breadth-overview-legend-line.is-dotted {
    border-top-style: dotted;
}

.breadth-overview-legend-label {
    overflow: hidden;
    text-overflow: ellipsis;
}

.breadth-overview-legend-item.is-market-all {
    color: var(--text-strong);
    font-weight: 600;
}

.breadth-overview-legend-item.is-market-all .breadth-overview-legend-line {
    border-top-width: 3px;
    filter: drop-shadow(0 0 3px color-mix(in srgb, var(--text-strong) 42%, transparent));
}

.breadth-overview-legend-item.is-hidden {
    color: var(--text-tertiary);
    opacity: 1;
    background: var(--surface-inset);
}

.breadth-overview-legend-item.is-hidden .breadth-overview-legend-line {
    filter: none;
    opacity: 1;
}

.breadth-overview-legend-item.is-hidden .breadth-overview-legend-label {
    text-decoration: line-through;
    text-decoration-color: currentColor;
    text-decoration-thickness: 1px;
}

@media (forced-colors: active) {
    .breadth-overview-legend {
        border-top-color: CanvasText;
        color: CanvasText;
        background: Canvas;
    }

    .breadth-overview-legend-item,
    .breadth-overview-legend-item:hover,
    .breadth-overview-legend-item:focus-visible {
        color: CanvasText;
        background: Canvas;
    }

    .breadth-overview-legend-item:hover {
        border-color: CanvasText;
    }

    .breadth-overview-legend-item:focus-visible {
        outline-color: Highlight;
    }

    .breadth-overview-legend-line {
        border-top-color: currentColor;
    }

    .breadth-overview-legend-item.is-market-all .breadth-overview-legend-line {
        filter: none;
    }

    .breadth-overview-legend-item.is-hidden {
        color: CanvasText;
        opacity: 1;
        background: Canvas;
    }

    .breadth-overview-legend-item.is-hidden .breadth-overview-legend-line {
        border-top-color: GrayText;
        filter: none;
        opacity: 1;
    }
}

@media (max-width: 768px) {
    .breadth-overview-card {
        min-height: 430px;
    }

    .breadth-overview-legend-item {
        min-height: 44px;
    }

    .pro-top-bar {
        flex-basis: 430px !important;
        min-height: 430px !important;
    }
}

@media (max-width: 360px) {
    .breadth-overview-legend {
        padding-inline: 7px;
    }

    .breadth-overview-legend-item {
        gap: 3px;
        padding-inline: 1px;
        font-size: 12px;
    }

    .breadth-overview-legend-line {
        width: 12px;
        flex-basis: 12px;
    }
}

/* Narrow chart cards need three columns to retain distinct index names. */
@media (max-width: 768px) {
    .breadth-overview-legend {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        grid-template-rows: repeat(3, minmax(44px, auto));
    }
    .breadth-overview-legend .breadth-overview-legend-item {
        grid-column: auto;
        grid-row: auto;
    }
    .breadth-overview-legend-line { width: 12px; flex-basis: 12px; }
    .pro-top-bar {
        flex-basis: 476px !important;
        min-height: 476px !important;
    }
}