{# Shared template macros. Import with: {% from "_macros.html" import crumbs %} #}

{# Breadcrumb trail. `items` is a list of (label, href) pairs, ordered root→current.
   Intermediate items with a truthy href render as links; the last item (or any
   item with an empty href) renders as plain current text. #}
{% macro crumbs(items) -%}
<nav class="breadcrumb" aria-label="Breadcrumb">
  {%- for label, href in items -%}
    {%- if loop.last -%}
      <span class="breadcrumb-cur" aria-current="page">{{ label }}</span>
    {%- elif href -%}
      <a href="{{ href }}">{{ label }}</a><span class="breadcrumb-sep">›</span>
    {%- else -%}
      <span>{{ label }}</span><span class="breadcrumb-sep">›</span>
    {%- endif -%}
  {%- endfor -%}
</nav>
{%- endmacro %}