Header and footer missing in HubSpot custom blog template theme

I’m just starting with HubSpot development and running into an issue with my custom theme.

I built a new theme and made a file called “article-listing.html” for showing blog posts. The blog entries display fine, but the header and footer sections don’t appear on this page. They work perfectly on my main homepage though.

I tried adding the header.html file from my theme folder but I’m not sure if I’m doing it right. The styles aren’t loading either. Since I’m still learning, I could really use some guidance on the proper way to include these elements.

<!--
  templateType: blog_listing
  isAvailableForNewContent: true
  enableDomainStylesheets: true
  label: Custom - article listing
  screenshotPath: ../images/previews/article-page.png
-->

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Article Listing</title>
  <style>
    @import url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500;600&display=swap');
    html, body {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

   .category-nav {
    display: flex;
    gap: 15px;
    margin-bottom: 25px;
    flex-wrap: wrap;
   }

  </style>
  
</head>
<body> 
   {% block top_section %}
        {% global_partial path="MyTheme/templates/partials/top-nav.html" %}
      {% endblock top_section %}
  <div class="category-nav"> 
    <a  
      href="/articles"  
      class="{% if request.path == '/articles' or request.path == '/articles/' %}current{% endif %}"> 
      Show All
    </a> 
         
    {% set article_categories = blog_topics('default', 200) %} 
    {% for category in article_categories %} 
    <a  
      href="{{ blog_tag_url(group.id, category.slug) }}"  
      class="{% if '/articles/category/' + category.slug in request.path %}current{% endif %}"> 
      {{ category.name }} 
    </a> 
    {% endfor %} 
  </div> 

  <div class="article-grid"> 
    <div class="grid-wrapper"> 
      {# Pagination setup #}
      {% set items_per_page = 8 %}
      {% set total_items = contents|length %}
      {% set page_count = (total_items / items_per_page)|round(0, 'ceil')|int %}
      {% set active_page = request.query_dict.page|default('1')|int %}
      {% set first_item = (active_page - 1) * items_per_page %}
      {% set last_item = first_item + items_per_page %}

      {# Show paginated articles #}
      {% for post in contents[first_item:last_item] %} 
      <div class="article-card"> 
        <img src="{{ post.featured_image }}" alt="{{ post.name }}"> 
        <div class="card-content"> 
          <div class="post-categories"> 
            {% if post.tag_list %} 
            <div> 
              {% for category in post.tag_list %} 
              <a class="category-link" href="/articles/category/{{ category.slug }}">{{ category.name }}</a>{% if not loop.last %}, {% endif %} 
              {% endfor %} 
            </div> 
            {% endif %} 
          </div> 
          <h3 class="post-title"><a href="{{ post.absolute_url }}">{{ post.name }}</a></h3> 
          <p class="post-excerpt">{{ post.post_summary|truncate(120, true) }}</p> 
        </div> 
      </div> 
      {% endfor %} 
    </div>

    {# Page navigation #}
    {% if page_count > 1 %}
    <div class="page-nav">
      {# Back button #}
      <a href="?page={{ active_page - 1 }}" 
         class="{% if active_page == 1 %}inactive{% endif %}">
        Back
      </a>

      {# Number links #}
      {% for num in range(1, page_count + 1) %}
        <a href="?page={{ num }}"
           class="{% if num == active_page %}current{% endif %}">
          {{ num }}
        </a>
      {% endfor %}

      {# Forward button #}
      <a href="?page={{ active_page + 1 }}"
         class="{% if active_page == page_count %}inactive{% endif %}">
        Forward
      </a>
    </div>
    {% endif %}
  </div> 
  
   {% block bottom_section %}
        {% global_partial path="MyTheme/templates/partials/bottom-nav.html" %}
      {% endblock bottom_section %}
</body> 
</html>