{#
  Vertical sub-tab macros — reusable across any settings pane.

  Usage:
    {% from '_stab.html' import stab_shell, stab_pane %}

    {% call stab_shell('my-shell-id', [
        {'id': 'overview', 'label': _('Overview'), 'icon': '✦'},
        {'id': 'settings', 'label': _('Settings'), 'icon': '⚙'},
    ]) %}
      {% call stab_pane('overview') %}
        <p>Overview content…</p>
      {% endcall %}
      {% call stab_pane('settings') %}
        <p>Settings content…</p>
      {% endcall %}
    {% endcall %}

  Tabs are switched by sub-tabs.js (looks for .stab-shell elements).
  Hidden panes use visibility:hidden so form fields inside still submit.
  Active tab is persisted in localStorage keyed by shell id.

  data-stab-goto="tab-id" on any element inside the shell navigates to that tab.
#}

{% macro stab_shell(shell_id, tabs) %}
<div class="stab-shell" id="{{ shell_id }}">
  <nav class="stab-nav" aria-label="{{ _('Settings sections') }}">
    {%- for tab in tabs %}
    <button class="stab-btn" type="button" data-stab="{{ tab.id }}" aria-controls="stab-pane-{{ tab.id }}">
      {%- if tab.get('icon') %}<span class="stab-icon" aria-hidden="true">{{ tab.icon }}</span>{% endif -%}
      {{ tab.label }}
    </button>
    {%- endfor %}
  </nav>
  <div class="stab-body">
    {{ caller() }}
  </div>
</div>
{% endmacro %}


{% macro stab_pane(tab_id) %}
<div class="stab-pane" data-stab="{{ tab_id }}" id="stab-pane-{{ tab_id }}" role="tabpanel">
  {{ caller() }}
</div>
{% endmacro %}