sure/app/views/admin/users/index.html.erb

<%= content_for :page_title, t(".title") %>

<div class="bg-container rounded-xl shadow-border-xs p-4">
  <div class="mb-6">
    <p class="text-sm text-secondary"><%= t(".description") %></p>
  </div>

  <!-- Filters -->
  <div class="mb-6">
    <%= form_with url: admin_users_path, method: :get, class: "flex gap-4 items-end flex-wrap" do |f| %>
      <div class="w-full md:w-auto">
        <%= f.label :role, t(".filters.role"), class: "block text-sm font-medium text-primary mb-1" %>
        <%= f.select :role,
            options_for_select(
              [[t(".filters.role_all"), ""], [t(".roles.guest"), "guest"], [t(".roles.member", default: "Member"), "member"], [t(".roles.admin"), "admin"], [t(".roles.super_admin"), "super_admin"]],
              params[:role]
            ),
            {},
            class: "rounded-lg border border-primary px-3 py-2 text-sm bg-container-inset text-primary w-full" %>
      </div>
      <div class="w-full md:w-auto">
        <%= f.label :trial_status, t(".filters.trial_status"), class: "block text-sm font-medium text-primary mb-1" %>
        <%= f.select :trial_status,
            options_for_select(
              [[t(".filters.trial_all"), ""], [t(".filters.trial_expiring_soon"), "expiring_soon"], [t(".filters.trial_trialing"), "trialing"]],
              params[:trial_status]
            ),
            {},
            class: "rounded-lg border border-primary px-3 py-2 text-sm bg-container-inset text-primary w-full" %>
      </div>
      <%= render DS::Button.new(variant: :primary, size: :md, type: "submit", text: t(".filters.submit"), class: "md:w-auto w-full justify-center") %>
    <% end %>
  </div>

  <!-- Summary: trials expiring in next 7 days -->
  <div class="grid grid-cols-1 md:grid-cols-4 gap-4 mb-6">
    <div class="bg-container-inset rounded-lg p-4">
      <div class="flex items-center gap-2 mb-2">
        <%= icon "calendar-clock", class: "w-5 h-5 text-secondary" %>
        <p class="text-xs font-medium text-secondary uppercase"><%= t(".summary.trials_expiring_7_days") %></p>
      </div>
      <p class="text-2xl font-semibold text-primary"><%= @trials_expiring_in_7_days %></p>
    </div>
  </div>

  <!-- Families/Groups & Users -->
  <div>
    <h2 class="text-lg font-semibold text-primary mb-3"><%= t(".section_title") %></h2>

    <% if @families_with_users.any? %>
      <div class="space-y-4">
        <% @families_with_users.each do |family, users| %>
          <% pending_invitations = @invitations_by_family[family.id] || [] %>
          <details class="bg-container-inset rounded-lg overflow-hidden group"
                   data-controller="admin-invitation-delete"
                   data-admin-invitation-delete-delete-all-label-value="<%= t(".invitations.delete_all") %>">
            <summary class="flex items-center justify-between gap-4 px-4 py-3 cursor-pointer select-none hover:bg-surface-hover">
              <div class="flex items-center gap-3">
                <%= icon "users", class: "w-5 h-5 text-secondary shrink-0" %>
                <div>
                  <p class="font-semibold text-primary"><%= family.name.presence || t(".unnamed_family") %></p>
                  <p class="text-xs text-secondary">
                    <%= t(".family_summary",
                          members: users.size,
                          accounts: number_with_delimiter(@accounts_count_by_family[family.id] || 0),
                          transactions: number_with_delimiter(@entries_count_by_family[family.id] || 0)) %>
                  </p>
                </div>
              </div>
              <div class="flex items-center gap-4 shrink-0">
                <% sub = family.subscription %>
                <% if sub&.trialing? %>
                  <span class="text-xs text-secondary">
                    <%= t(".table.trial_ends_at") %>: <%= sub.trial_ends_at&.to_fs(:long) || t(".not_available") %>
                  </span>
                <% elsif sub %>
                  <span class="inline-flex items-center px-2 py-0.5 rounded text-xs font-medium
                    <%= sub.active? ? "bg-green-100 text-green-800" : "bg-surface text-secondary" %>">
                    <%= sub.status.humanize %>
                  </span>
                <% else %>
                  <span class="text-xs text-secondary"><%= t(".no_subscription") %></span>
                <% end %>
                <%= icon "chevron-down", class: "w-4 h-4 text-secondary transition-transform group-open:rotate-180" %>
              </div>
            </summary>

            <div class="border-t border-primary">
              <table class="w-full">
                <thead class="bg-surface-default border-b border-primary">
                  <tr>
                    <th class="px-4 py-2 text-left text-xs font-medium text-secondary uppercase"><%= t(".table.user") %></th>
                    <th class="px-4 py-2 text-left text-xs font-medium text-secondary uppercase"><%= t(".table.last_login") %></th>
                    <th class="px-4 py-2 text-right text-xs font-medium text-secondary uppercase"><%= t(".table.session_count") %></th>
                    <th class="px-4 py-2 text-right text-xs font-medium text-secondary uppercase"><%= t(".table.role") %></th>
                  </tr>
                </thead>
                <tbody class="divide-y divide-primary">
                  <% users.each do |user| %>
                    <tr>
                      <td class="px-4 py-3">
                        <div class="flex items-center gap-3">
                          <div class="w-8 h-8 rounded-full bg-surface flex items-center justify-center shrink-0">
                            <span class="text-sm font-medium text-primary"><%= user.initials %></span>
                          </div>
                          <div>
                            <p class="font-medium text-primary"><%= user.display_name %></p>
                            <p class="text-sm text-secondary"><%= user.email %></p>
                          </div>
                        </div>
                      </td>
                      <td class="px-4 py-3 text-sm text-primary whitespace-nowrap">
                        <%= @last_login_by_user[user.id]&.to_fs(:long) || t(".table.never") %>
                      </td>
                      <td class="px-4 py-3 text-sm text-primary text-right whitespace-nowrap">
                        <%= number_with_delimiter(@sessions_count_by_user[user.id] || 0) %>
                      </td>
                      <td class="px-4 py-3 text-right">
                        <% if user.id == Current.user.id %>
                          <span class="text-sm text-secondary"><%= t(".you") %></span>
                        <% else %>
                          <%= form_with model: [:admin, user], method: :patch, class: "flex items-center justify-end gap-2", data: { controller: "auto-submit-form" } do |form| %>
                            <%= form.select :role,
                                options_for_select([
                                  [t(".roles.guest"), "guest"],
                                  [t(".roles.member", default: "Member"), "member"],
                                  [t(".roles.admin"), "admin"],
                                  [t(".roles.super_admin"), "super_admin"]
                                ], user.role),
                                {},
                                class: "text-sm rounded-lg border border-primary bg-container text-primary px-2 py-1",
                                data: { auto_submit_form_target: "auto" } %>
                          <% end %>
                        <% end %>
                      </td>
                    </tr>
                  <% end %>
                </tbody>
                <% if pending_invitations.any? %>
                  <tbody class="divide-y divide-primary border-t border-dashed border-primary">
                    <% pending_invitations.each do |invitation| %>
                      <tr class="bg-red-50/30 dark:bg-red-950/20">
                        <td class="px-4 py-3">
                          <div class="flex items-center gap-3">
                            <%= icon "mail", class: "w-5 h-5 text-secondary shrink-0" %>
                            <div>
                              <p class="font-medium text-secondary italic"><%= invitation.email %></p>
                              <p class="text-xs text-secondary"><%= t(".invitations.pending_label") %></p>
                            </div>
                          </div>
                        </td>
                        <td class="px-4 py-3 text-sm text-secondary whitespace-nowrap">
                          <%= t(".invitations.expires", date: invitation.expires_at.to_fs(:long)) %>
                        </td>
                        <td class="px-4 py-3 text-sm text-secondary text-right whitespace-nowrap">
                          —
                        </td>
                        <td class="px-4 py-3 text-right">
                          <%= form_with url: admin_invitation_path(invitation), method: :delete, class: "inline" do |f| %>
                            <button type="submit"
                                    data-admin-invitation-delete-target="button"
                                    data-action="click->admin-invitation-delete#handleClick"
                                    class="text-sm text-red-600 hover:text-red-800 border border-red-300 rounded-lg px-2 py-1 hover:bg-red-50 transition-colors">
                              <%= t(".invitations.delete") %>
                            </button>
                          <% end %>
                        </td>
                      </tr>
                    <% end %>
                  </tbody>
                <% end %>
              </table>
              <% if pending_invitations.any? %>
                <%= form_with url: invitations_admin_family_path(family), method: :delete,
                              data: { admin_invitation_delete_target: "destroyAllForm" },
                              class: "hidden" do |f| %>
                <% end %>
              <% end %>
            </div>
          </details>
        <% end %>
      </div>
    <% else %>
      <div class="bg-container-inset rounded-lg p-8 text-center">
        <%= icon "users", class: "w-12 h-12 mx-auto text-secondary mb-3" %>
        <p class="text-secondary"><%= t(".no_users") %></p>
      </div>
    <% end %>
  </div>

  <%= settings_section title: t(".role_descriptions_title"), collapsible: true, open: true do %>
    <div class="space-y-3 text-sm">
      <div class="flex items-start gap-3">
        <span class="inline-flex items-center px-2 py-0.5 rounded text-xs font-medium bg-surface text-primary shrink-0">
          <%= t(".roles.guest") %>
        </span>
        <p class="text-secondary"><%= t(".role_descriptions.guest") %></p>
      </div>
      <div class="flex items-start gap-3">
        <span class="inline-flex items-center px-2 py-0.5 rounded text-xs font-medium bg-surface text-primary shrink-0">
          <%= t(".roles.member", default: "Member") %>
        </span>
        <p class="text-secondary"><%= t(".role_descriptions.member", default: "Basic user access. Can manage their own accounts, transactions, and settings.") %></p>
      </div>
      <div class="flex items-start gap-3">
        <span class="inline-flex items-center px-2 py-0.5 rounded text-xs font-medium bg-surface text-primary shrink-0">
          <%= t(".roles.admin") %>
        </span>
        <p class="text-secondary"><%= t(".role_descriptions.admin") %></p>
      </div>
      <div class="flex items-start gap-3">
        <span class="inline-flex items-center px-2 py-0.5 rounded text-xs font-medium bg-green-100 text-green-800 shrink-0">
          <%= t(".roles.super_admin") %>
        </span>
        <p class="text-secondary"><%= t(".role_descriptions.super_admin") %></p>
      </div>
    </div>
  <% end %>
</div>