Accessing .Section when at list template

I’m using the Sections as my menu with SectionPagesMenu = "main"

in my header partial I have a navigation that is included in every page

{{ $currentPage := . }}
        {{ range .Site.Menus.main }}
            <li class="{{if or ($currentPage.IsMenuCurrent "main" .) ($currentPage.HasMenuCurrent "main" .) }} active{{end}}"><a href="{{ .URL }}">{{ .Name }}</a></li>
        {{ end }}
...
<main class="{{ .Section }}">

This works as expected, until we get to the main tag. What I really want here is blog or tutorials or any other top level menu (section) items. I get this when I am in a piece of content (/blog/2016/10/10/my-post.md), but not when I am at a list view (/blog or /tutorials/). Is there a way to get this?

Look at isNode vs isPage, and keep in mind that {{.Title}} is the section title for your list/section.html.