{"component":{"aria":"Native <details>/<summary> element pair. Browsers handle keyboard (Enter/Space on summary), screen-reader announcement, and aria-expanded natively. Subsections use <h3> because the article's '## Research trail' renders as <h2>. Focus ring on summary via :focus-visible.","category":"wiki","css":".ps-research-trail { margin-block-start: var(--pds-space-4); padding: var(--pds-space-2); background: var(--pds-surface-layer-accent); border-inline-start: 3px solid var(--pds-border-subtle); }\n.ps-research-trail__summary { font-family: var(--pds-font-sans); font-size: 0.875rem; font-weight: 600; color: var(--pds-text-secondary); cursor: pointer; list-style: revert; user-select: none; }\n.ps-research-trail__summary:focus-visible { outline: 2px solid var(--pds-focus-ring); outline-offset: 2px; }\n.ps-research-trail__body { margin-block-start: var(--pds-space-2); }\n.ps-research-trail__heading { font-family: var(--pds-font-sans); font-size: 0.9375rem; font-weight: 600; margin: var(--pds-space-2) 0 var(--pds-space-1); padding-inline-start: var(--pds-space-1); border-inline-start: 3px solid transparent; }\n.ps-research-trail__heading--done { border-inline-start-color: var(--pds-status-success); }\n.ps-research-trail__heading--suggested { border-inline-start-color: var(--pds-brand-blue-60); }\n.ps-research-trail__heading--open { border-inline-start-color: var(--pds-status-warn); }\n.ps-research-trail__list { margin: 0; padding-inline-start: var(--pds-space-2); font-size: 0.875rem; line-height: 1.6; }\n.ps-research-trail__list li { padding-block: 0.125rem; color: var(--pds-text-primary); }","description":"Collapsible bottom-of-article epistemic-frontier disclosure. Three fixed subsections: Research done / Suggested research / Open questions. Collapsed by default; summary line shows counts ('N done · N suggested · N open question(s)'). Native <details>/<summary> — no JS needed. Emits JSON-LD potentialAction nodes (SearchAction + Question). Doctrine claim #39 at article scale.","display_name":"Research Trail Footer","html":"<details class=\"ps-research-trail\">\n  <summary class=\"ps-research-trail__summary\">\n    Research trail — 4 done · 3 suggested · 1 open question\n  </summary>\n  <section class=\"ps-research-trail__body\" aria-label=\"Research trail detail\">\n    <h3 class=\"ps-research-trail__heading ps-research-trail__heading--done\"\n        id=\"research-trail-done\">\n      Research done\n    </h3>\n    <ul class=\"ps-research-trail__list\">\n      <li>Klein 2009 — seL4 formal verification (academic source)</li>\n      <li>Wikipedia capability-based-security article (secondary survey)</li>\n    </ul>\n    <h3 class=\"ps-research-trail__heading ps-research-trail__heading--suggested\"\n        id=\"research-trail-suggested\">\n      Suggested research\n    </h3>\n    <ul class=\"ps-research-trail__list\">\n      <li>seL4 capability-revocation 2024–2026 papers — verify transitive revocation behaviour</li>\n    </ul>\n    <h3 class=\"ps-research-trail__heading ps-research-trail__heading--open\"\n        id=\"research-trail-open\">\n      Open questions\n    </h3>\n    <ul class=\"ps-research-trail__list\">\n      <li>Does the seL4 microkernel revoke capabilities transitively when a parent capability is destroyed?</li>\n    </ul>\n  </section>\n</details>","name":"research-trail-footer","registry_type":"component","research_links":["research/wikipedia-leapfrog-2030.md#62-research-trail-footer-block-first"],"tabs_available":[],"variants":[{"css_class":"","description":"Default — summary line with counts visible; body hidden.","html":"","name":"collapsed","tokens":[]},{"css_class":"","description":"Full three-subsection content visible.","html":"","name":"expanded","tokens":[]},{"css_class":"","description":"Not rendered — article frontmatter declares research_trail: false, or all three counts are zero.","html":"","name":"suppressed","tokens":[]}],"wcag":{"target":"2.2 AA"}},"tenant":"pointsav","theme":"pointsav-brand"}