{# Per-gate convergence viz. `conv` = section.convergence. ≤3 rounds → bars; ≥4 → line.
   Always plus a visually-hidden sr-only table of per-round per-series counts. #}
{% set conv = section.convergence %}
{% if conv.form == "bars" %}
  <div class="conv-bars" aria-hidden="true">
    {% for bar in conv.bars %}
      <div class="conv-bar" style="height: {{ bar.height_pct }}%;" title="round {{ bar.round }}"></div>
    {% endfor %}
  </div>
{% else %}
  <svg class="conv-line" viewBox="0 0 100 100" preserveAspectRatio="none" aria-hidden="true">
    {% for pl in conv.polylines %}
      <polyline class="{{ pl.css }}" points="{{ pl.points }}"></polyline>
    {% endfor %}
  </svg>
{% endif %}

<table class="sr-only">
  <caption>Convergence: per-round finding counts by decision series</caption>
  <thead>
    <tr>
      <th scope="col">round</th>
      {% for s in conv.series %}<th scope="col">{{ s.label }}</th>{% endfor %}
    </tr>
  </thead>
  <tbody>
    {% for row in conv.table_rows %}
      <tr>
        <th scope="row">{{ row.round }}</th>
        {% for cell in row.cells %}<td>{{ cell.count }}</td>{% endfor %}
      </tr>
    {% endfor %}
  </tbody>
</table>