Maybe/app/views/accounts/_accountable_group.html.erb

<%# locals: (account_group:) %>

<%= render DisclosureComponent.new(title: account_group.name, align: :left, open: account_group.accounts.any? { |account| page_active?(account_path(account)) }) do |disclosure| %>
  <% disclosure.with_summary_content do %>
    <div class="ml-auto text-right grow">
      <%= tag.p format_money(account_group.total_money), class: "text-sm font-medium text-primary" %>

      <%= turbo_frame_tag "#{account_group.key}_sparkline", src: accountable_sparkline_path(account_group.key), loading: "lazy" do %>
        <div class="flex items-center w-8 h-4 ml-auto">
          <div class="w-6 h-px bg-surface-inset"></div>
        </div>
      <% end %>
    </div>
  <% end %>

  <div class="space-y-1">
    <% account_group.accounts.each do |account| %>
      <%= link_to account_path(account), 
                  class: class_names(
                    "block flex items-center gap-2 px-3 py-2 rounded-lg",
                    page_active?(account_path(account)) ? "bg-container" : "hover:bg-surface-hover"
                  ), 
                  data: { sidebar_tabs_target: "account", action: "click->sidebar-tabs#select" },
                  title: account.name do %>
        <%= render "accounts/logo", account: account, size: "sm", color: account_group.color %>

        <div class="min-w-0 grow">
          <%= tag.p account.name, class: "text-sm text-primary font-medium mb-0.5 truncate" %>
          <%= tag.p account.short_subtype_label, class: "text-sm text-secondary truncate" %>
        </div>

        <div class="ml-auto text-right grow h-10">
          <%= tag.p format_money(account.balance_money), class: "text-sm font-medium text-primary whitespace-nowrap" %>

          <%= turbo_frame_tag dom_id(account, :sparkline), src: sparkline_account_path(account), loading: "lazy" do %>
            <div class="flex items-center w-8 h-5 ml-auto">
              <div class="w-6 h-px bg-surface-inset"></div>
            </div>
          <% end %>
        </div>
      <% end %>
    <% end %>
  </div>

  <div class="my-2">
    <%= render LinkComponent.new(
      href: new_polymorphic_path(account_group.key, step: "method_select"),
      text: "New #{account_group.name.downcase.singularize}",
      icon: "plus",
      full_width: true,
      variant: "ghost",
      frame: :modal,
      class: "justify-start"
    ) %>
  </div>
<% end %>