{# `data-fcu-auth` fingerprints the session this shell (navbar user menu,
sidebar) was rendered for. Fragment responses carry the same value in the
X-Construct-Auth header; construct-core.js reloads the document when they
diverge, since a partial swap can never bring the shell back in sync.
`data-fcu-menu` does the same for the *contents* of the sidebar menu, which
an app can make depend on anything it likes (see add_menu_provider). It is
only rendered when the app actually has a dynamic menu, and a mismatch there
reloads the menu fragment alone rather than the document — a new entry
showing up must not throw anyone out of a half-filled form. #}
{# Varies per page (construct.page_title folds in the active view's name),
so navigating between list/create/edit changes the document title. #}
{% block title %}{{ construct.page_title }}{% endblock %}
{% if construct.icon_mode == "bootstrap" %}
{% else %}
{% endif %}
{% if construct.design_stylesheet %}
{% endif %}
{# Application stylesheets (FlaskConstructUI(stylesheets=…) /
add_stylesheet). Linked after everything the library owns so app rules
and --fcu-* overrides win the cascade. #}
{% for href in construct.stylesheets or [] %}
{% endfor %}
{% block head_extra %}{% endblock %}
{# First focusable element on the page: lets a keyboard user jump the
sidebar (which can be 20+ links) straight to content. Visible only
while focused. #}
{{ construct.t("nav-skip-to-content") }}
{% block navbar %}
{{ construct.title }}
{% endblock navbar %}
{% block sidebar %}
{% endblock sidebar %}
{% include "style/_flashes.html" %}
{# Every page needs exactly one
. Templates that render their own
visible heading override this block to empty (the CRUD views do);
component pages, whose content the library does not compose, get
this visually-hidden default. #}
{% block page_heading %}