{% extends "wagtailadmin/base.html" %}
{% load wagtailadmin_tags i18n %}

{% block titletag %}{{ header_title }}{% endblock %}

{% block content %}

    {% block header %}
        {% block slim_header %}
            {% if breadcrumbs_items %}
                {# Ensure all necessary variables are passed explicitly here #}
                {% include "wagtailadmin/shared/headers/slim_header.html" with breadcrumbs_items=breadcrumbs_items side_panels=side_panels history_url=history_url title=header_title search_url=index_results_url search_form=search_form filters=filters buttons=header_buttons icon_name=header_icon only %}
            {% endif %}
        {% endblock %}
        {% block main_header %}
            {% if not breadcrumbs_items %}
                {% include "wagtailadmin/shared/header.html" with title=page_title subtitle=page_subtitle icon=header_icon only %}
            {% endif %}
        {% endblock %}
    {% endblock %}

    <div class="nice-padding">
        {% block main_content %}{% endblock %}
    </div>
{% endblock %}