/* ===========================================================================
   PerimetroX — resources.css
   EXTENSIÓN de assets/styles.css (cárgalo ANTES). Reutiliza tokens (:root),
   .seo-hero/.seo-layout/.seo-article/.seo-block/.seo-aside/.seo-card,
   .glass, .card-hover, .icon-badge, .resource-grid/.resource-card.
   Aquí viven: breadcrumbs, tabla de contenido lateral (recursos) y la
   cuadrícula del hub de recursos.
   ========================================================================== */

/* ---------------------------------------------------------------------------
   Breadcrumb
   -------------------------------------------------------------------------- */
.seo-crumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-dim);
}
.seo-crumbs a { color: var(--text-muted); }
.seo-crumbs a:hover { color: var(--brand); }
.seo-crumbs span[aria-hidden] { opacity: 0.5; }
.seo-crumbs [aria-current="page"] { color: var(--text); }

/* ---------------------------------------------------------------------------
   Tabla de contenido lateral (sidebar TOC), dentro de .seo-aside
   -------------------------------------------------------------------------- */
.seo-toc {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 18px 16px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--panel-solid);
  position: sticky;
  top: calc(var(--nav-h) + 24px);
}
.seo-toc-label {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-dim);
  margin-bottom: 8px;
}
.seo-toc a {
  padding: 6px 8px;
  border-radius: 8px;
  font-size: 0.84rem;
  color: var(--text-muted);
  line-height: 1.4;
}
.seo-toc a:hover { background: var(--panel-2); color: var(--text); }
.seo-toc a.is-active { background: rgba(4, 154, 237, 0.1); color: var(--brand-dark); font-weight: 600; }

/* ---------------------------------------------------------------------------
   Hub de recursos (recursos.html) — reutiliza .resource-grid/.resource-card
   de styles.css (ya es un grid de 3 columnas); solo se añade una variante
   destacada para la tarjeta de "Seguridad y confidencialidad".
   -------------------------------------------------------------------------- */
.resource-card.featured { border: 1px solid var(--line-strong); }