/* Chart wrapper: chips (mobile) above, then the canvas, then the gap note.
   The canvas has its OWN definite height (Chart.js needs one for
   maintainAspectRatio: false); the chips and the note flow at their natural
   size around it rather than competing with it for a fixed outer height —
   so a longer note (e.g. the KS4 gap caption) or a two-row chip legend can
   never squash the chart. */
.wrapper {
    display: flex;
    flex-direction: column;
}

.canvasBox {
    position: relative;
    height: 380px;
}

@media (max-width: 640px) {
    .canvasBox {
        height: 280px;
    }
}

/* School chips: mobile-only legend + tap-to-focus control. Desktop keeps
   Chart.js's built-in legend (with per-school point shapes). */
.chips {
    display: none;
}

@media (max-width: 640px) {
    .chips {
        /* Two chips per row so long school names don't crowd into a single
           line; each chip fills its column and truncates with an ellipsis. */
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 6px;
        padding-bottom: 8px;
    }

    .chip {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        min-height: 40px;
        min-width: 0;
        padding: 4px 10px;
        border: 1px solid var(--border);
        border-radius: 999px;
        background: transparent;
        cursor: pointer;
        font-size: 12px;
        font-weight: 600;
    }

    .chip[aria-pressed="true"] {
        background: var(--bg-secondary);
        border-color: var(--border-strong);
    }

    .chipDot {
        flex: 0 0 auto;
        width: 10px;
        height: 10px;
        border-radius: 50%;
    }

    .chipName {
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
        /* min-width:0 lets the name shrink inside the grid cell so the
           ellipsis kicks in instead of overflowing. */
        min-width: 0;
    }
}

.chartNote {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin: 0.5rem 0 0;
}
