{#- Shared learning/content index for chirp-theme.

    One parameterized listing surface for the near-duplicate `*/list.html`
    pages (tutorial, resume, notebook). Each caller differs only in labels and
    feed shape, so they share this macro instead of cloning a per-vertical
    template.

    Composes page_hero + grid/feed DIRECTLY — it deliberately does NOT use
    chirpui/resource_index, because resource_index always emits a search_header
    GET form ("Filter X… / Search") + a "0 filters selected" selection bar that
    is inert on a static Bengal build (no request-time server) and duplicates
    the working global Cmd+K search. Discovery lives in Cmd+K; the list just
    presents the catalog. This also removes the old double heading (page-hero
    title + a near-synonym results_title). The blog/tracks lists already prove
    this page_hero + grid pattern.

    Args:
        title           Index heading (e.g. "Tutorials").
        subtitle        Lede under the heading.
        items           Resolved list of child pages to render.
        content         Optional rendered section body (markdown index page).
        eyebrow         Optional small-caps badge label above the title.
        eyebrow_icon    Optional icon name for the eyebrow badge.
        item_singular   Noun for the count label (e.g. "tutorial").
        item_plural     Optional explicit plural (defaults to singular + "s").
        empty_title     Empty-state heading.
        empty_message   Empty-state prose.
        empty_icon      Empty-state icon name.
        layout          "grid" (resource cards) or "feed" (post-card stack).
        card_kind       Card modifier for grid layout.
        surface         data-chirp-theme-surface value (centers the intro lede
                        via the type-identity measure system).
-#}
{% from "chirpui/badge.html" import badge %}
{% from "chirpui/hero.html" import page_hero %}
{% from "chirpui/layout.html" import container, stack %}
{% from "partials/learning-pages.html" import content_cards, learning_feed, rendered_body %}
{% from "partials/taxonomy-pages.html" import count_label %}
{% from "partials/empty-state.html" import empty_state %}
{% from "partials/catalog-shell.html" import catalog_shell %}

{% def learning_index(title, subtitle=none, items=none, content=none, eyebrow=none, eyebrow_icon=none, item_singular="entry", item_plural=none, empty_title="Nothing here yet", empty_message="Entries appear here when published.", empty_icon="inbox", layout="grid", card_kind="page", surface=none, cls="") %}
{% let safe_items = items ?? [] %}
{% let _layout = "grid" if layout == "grid" else "feed" %}
{% let _count = count_label(safe_items | length, item_singular, item_plural) %}
{% let _catalog_path = page?._path ?? page?.href ?? '/' %}
{% call catalog_shell(surface=surface, current_path=_catalog_path) %}
<div class="chirp-theme-learning-shell">
{% call container(cls="chirp-theme-learning-page" ~ (" " ~ cls if cls else "")) %}
  {% call stack(gap="lg") %}
    {% call page_hero(title=title, subtitle=subtitle, variant="minimal", background="solid", cls="chirp-theme-learning-hero") %}
      {% slot eyebrow %}{% if eyebrow %}{{ badge(eyebrow, variant="primary") }}{% end %}{% end %}
      {% slot metadata %}{{ _count }}{% end %}
    {% end %}
    {{ rendered_body(content) }}
    {% if safe_items | length > 0 %}
    {% if _layout == "grid" %}
    {{ content_cards(safe_items, empty_message, card_kind) }}
    {% else %}
    {{ learning_feed(safe_items, empty_message) }}
    {% end %}
    {% else %}
    {{ empty_state(empty_title, empty_message, icon_name=empty_icon) }}
    {% end %}
  {% end %}
{% end %}
</div>
{% end %}
{% end %}