{% load brickwork_components %}
{% comment %}
CTA band (04-interfaces.md section 4d): a full-width call-to-action band,
the section that closes a marketing page. Structural, consumed via
{% include %} (BR-BW-MKT §4d structural-include doctrine).

Required context: heading. An absent heading renders nothing at all (the same
"reason to render" convention every sibling component in this kit follows,
BR-BW-PAGE-002/BR-BW-MKT-005): the three pages wire this component into a
normal (non-reason-to-exist) block on every page that uses it, so a page
extended with no cta_heading in context must not still emit an empty CTA band.

Optional context:
  body          (str).
  primary_cta   ({label, url}): rendered via {% bw_button %} primary.
  primary_cta_label / primary_cta_url (str, #98): the same primary CTA as
                flat strings, for a template-authored caller (a Django
                template cannot build a dict inline, so the ADR-056
                compose-it-yourself shape passes
                {% include ... with heading="Ready?" primary_cta_label="Get started" primary_cta_url="/signup/" %}).
                When both shapes are supplied the dict wins outright (the
                flat kwargs are ignored); a dict-shaped caller renders
                byte-identically to before the flat shape existed.
  secondary_cta ({label, url}): rendered via {% bw_button %} secondary
                (styled to read on the tinted band, see marketing.css).
  secondary_cta_label / secondary_cta_url (str, #98): the flat form of
                secondary_cta, same precedence.
  no_tint       (bool, default False): opts OUT of the tinted band
                background (composed from --bw-color-surface-marketing-tint,
                contrast-checked in both themes per BR-BW-MKT-002), for a
                CTA that should render on the page's own surface instead of
                standing out as its own band. Named as an opt-out (default
                False) rather than a tint=True default: a plain {% include %}
                forwarding an omitted page-level context variable resolves
                it to an empty string, not None, so a default-True flag
                combined with Django's |default filter cannot distinguish
                "the caller never set this" from "the caller explicitly
                turned it off" and would silently re-enable the tint either
                way. A default-False flag has no such ambiguity: omitted and
                explicitly-False both correctly mean "tint stays on".
{% endcomment %}
{% if heading %}
<section class="bw-cta{% if not no_tint %} bw-cta--tint{% endif %}">
  <div class="bw-cta__inner">
    <h2 class="bw-cta__heading">{{ heading }}</h2>
    {% if body %}<p class="bw-cta__body">{{ body }}</p>{% endif %}
    {% if primary_cta or secondary_cta or primary_cta_label or secondary_cta_label %}
      <div class="bw-cta__actions">
        {% if primary_cta %}{% bw_button primary_cta.label variant="primary" size="lg" href=primary_cta.url %}{% elif primary_cta_label %}{% bw_button primary_cta_label variant="primary" size="lg" href=primary_cta_url %}{% endif %}
        {% if secondary_cta %}{% bw_button secondary_cta.label variant="secondary" size="lg" href=secondary_cta.url %}{% elif secondary_cta_label %}{% bw_button secondary_cta_label variant="secondary" size="lg" href=secondary_cta_url %}{% endif %}
      </div>
    {% endif %}
  </div>
</section>
{% endif %}