{# Density tab — global preference (Compact / Comfortable / Tax-view).
   Promoted from per-page toggle in Phase 1 (audit H4, T1). The toggle
   itself stays in `_density_toggle.html`; this tab just hosts it plus
   a one-line explainer.

   profile_switcher_data() is a Jinja global callable; we use it to get
   the resolved ProfileSettings without requiring a per-route context var.
   page_key, selected_account, and account_id are set to app-wide defaults
   so the density write applies globally (no per-account filter).

   Guard: when no accounts exist the density toggle is not rendered (mirrors
   existing per-page toggle behaviour; test_base_topbar_omitted_when_no_accounts
   asserts hx-post="/preferences" must be absent in the no-accounts state). #}

<div class="space-y-3">
  <div>
    <h3 class="text-[14px] font-semibold m-0 mb-1">Density</h3>
    <p class="text-label-2 text-[12px] m-0">
      Controls row height and number formatting on tables across the app.
      Tax-view adds LT/ST + Lockout + Disallowed columns by default.
    </p>
  </div>
  {% set _psd = profile_switcher_data() %}
  {% if _psd.show_switcher %}
    {% with profile=_psd.profile, page_key="/", selected_account="", account_id=none %}
      {% include "_density_toggle.html" %}
    {% endwith %}
  {% else %}
    <p class="text-label-2 text-[12px] m-0">Import a CSV file to set up your first account, then density preferences will appear here.</p>
  {% endif %}
</div>