{# `breadcrumbs` is the list every template context already carries
   (`[{title, url}, ...]`, current page last). Renders nothing for a
   0- or 1-item trail (nothing to show — "you are here: Home" alone
   isn't a breadcrumb), so no guard needed at the call site. #}
{% macro render_breadcrumbs(breadcrumbs) %}
{% if breadcrumbs and breadcrumbs|length > 1 %}
<nav class="breadcrumbs" aria-label="breadcrumbs">
    {% for crumb in breadcrumbs %}
    {% if not loop.last %}<a href="{{ crumb.url }}">{{ crumb.title }}</a><span
        class="breadcrumbs__sep">/</span>
    {% else %}<span class="breadcrumbs__current">{{ crumb.title }}</span>{% endif %}
    {% endfor %}
</nav>
{% endif %}
{% endmacro %}