{% comment %}
  The reverse escape-hatch strip (#584) rendered above the Django admin
  content. Same UX contract as the SPA-side LegacyAdminBanner (#583):
  thin, persistent, no dismiss control. Uses inline neutral styling
  rather than a new admin CSS file so the strip ships without any
  staticfiles requirement on the consumer's side.

  When `visible` is false (either prefix unset, request missing, or
  current path outside the legacy mount), this template renders
  nothing — the surrounding {% block %} stays clean.
{% endcomment %}
{% if visible %}
<div role="region" aria-label="Experience toggle"
     style="padding:.25rem .75rem; border-bottom:1px solid #e5e7eb;
            background:#f9fafb; font-size:.75rem; color:#4b5563;">
  <a href="{{ target }}" target="_self" rel="noopener"
     style="color:inherit; text-decoration:none;">
    Looking for the new admin experience?
    <strong style="font-weight:600;">Open this page in {{ react_root }}</strong>
  </a>
</div>
{% endif %}