{% comment %}
Tooltip (0.12.0, #56; supersedes STA-015's title-only baseline). Consumed by
EXTENDING, like patterns/ and _modal.html: a consumer's tooltip partial opens
with {% extends "brickwork/components/_tooltip.html" %} and fills the
trigger block, e.g.

    {% extends "brickwork/components/_tooltip.html" %}
    {% block trigger %}
      <button type="button" class="bw-btn bw-btn--ghost bw-btn--sm bw-btn--icon-only"
              aria-label="{% translate "More info" %}">
        {% bw_icon "info" size="sm" decorative=True %}
      </button>
    {% endblock %}

Named blocks (semver-public, BR-BW-TPL-001):
  trigger:         present SINCE 3.4.0, the concise successor to the
                    deprecated tooltip_trigger block below (ADR-077 SS4).
                    Empty by default.
  tooltip_trigger: present since before 3.4.0 (unchanged back to at least
                    3.2.1). DEPRECATED, removed at 4.0 (ADR-077 SS4,
                    BR-BW-TPL-001/BR-BW-VER-001). Kept as an additional
                    empty extension point for backwards compatibility: a
                    shipped block name cannot be renamed silently. Both
                    trigger and tooltip_trigger render when both are
                    filled; a caller migrating to the concise name fills
                    trigger only.

A block name this file does not define is SILENTLY DISCARDED by Django:
no error, no warning, DEBUG=True does not catch it. A consumer pinned
below 3.4.0 who fills "trigger" from a newer checkout gets a
structurally valid, entirely empty trigger span that still passes
template loading; check this header against your pinned version before
relying on a name.

No-JS floor (BR-BW-HTMX-006): the trigger keeps a native title attribute set
to ``text``, so a tooltip with zero JavaScript still has SOME accessible
hint (the browser's own native title tooltip) rather than a silently absent
one. Enhanced: bwTooltip shows a styled bubble on hover AND focus (not click:
a tooltip is supplementary information, not an interactive disclosure), wired
via aria-describedby, and hides on mouseleave, blur or Escape. A tooltip is
NOT a dialog (WAI-ARIA APG Tooltip pattern): it never traps focus and never
blocks the trigger's own click/keyboard behaviour, unlike bw_modal.

Required context:
  id: a stable, id-safe token (letters, digits, hyphen, underscore; the same
      convention {% bw_tabs %} enforces at render time), for aria-describedby.
      This is the BUBBLE's id (role="tooltip" id="{{ id }}"); the wrapper
      root carries "{{ id }}-root" so the two never collide. Structural
      extends-consumed template, so this cannot raise at render time the way
      a tag can; the caller supplies a safe id (mirrors _modal.html's
      modal_id doctrine: an unsafe id is an authoring error, not a runtime
      guard here).
  text: the tooltip's content. Rendered BOTH as the trigger's native title
      (the no-JS floor) and inside the bubble (the enhanced floor), so the
      two never drift out of sync.
Optional:
  placement ("top" default | "bottom" | "start" | "end"): "start"/"end" are
      logical (inline-start/inline-end), so they flip automatically under
      dir="rtl"; "top"/"bottom" are block-axis and direction-agnostic.

Events (optional conventions, BR-BW-HTMX-004): bw:tooltip:show,
bw:tooltip:hide (detail { id }).

Tokens (CSS lane): bubble at --bw-z-tooltip (the highest rung in the
stacking scale, DESIGN.md section 6.5) over --bw-color-surface-raised,
--bw-elevation-2, radius --bw-radius-md. Motion, when present, follows the
BR-BW-TOK-009 reduced-motion floor like every other overlay in the set.

States: floor-only (native title attribute, no bubble shown) vs enhanced
  (styled bubble shown on hover AND focus, hidden on mouseleave/blur/
  Escape); four placement states (top default, bottom, start, end, the
  last two logical and RTL-mirroring).
Accessibility: WAI-ARIA APG Tooltip pattern, explicitly NOT a dialog: it
  never traps focus and never blocks the trigger's own click/keyboard
  behaviour. Wired via aria-describedby pointing at the bubble's id; the
  no-JS floor still carries the browser's own native title tooltip, so a
  hint exists with zero JavaScript. Covered by axe.spec.mjs against
  feedback-*.html/feedback-js-*.html/feedback-tooltip-open-*.html (the
  floor, the JS-boot leg and the open bubble state respectively), both
  themes.
Responsive: no breakpoint switch; no width-dependent CSS on any
  .bw-tooltip* selector.
{% endcomment %}
<span class="bw-tooltip bw-tooltip--{% firstof placement 'top' %}"
      id="{{ id }}-root"
      x-data="bwTooltip({ id: '{{ id|escapejs }}' })">
  <span data-bw-tooltip-trigger aria-describedby="{{ id }}" title="{{ text }}">
    {% block trigger %}{% endblock %}
    {% block tooltip_trigger %}{% endblock %}
  </span>
  <span class="bw-tooltip__bubble"
        id="{{ id }}"
        role="tooltip"
        data-bw-tooltip-bubble
        hidden>
    {{ text }}
  </span>
</span>