/* PJA-W2D public Article Renderer. Safe DOM structure only. */

.knowledge-article,
.knowledge-article * {
  min-width: 0;
}

.knowledge-loading-state {
  display: grid;
  min-height: 55vh;
  place-items: center;
  padding: 2rem;
  color: #5f6672;
}

.knowledge-article__header {
  padding-inline: 1.25rem;
}

.knowledge-article__header-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(2rem, 6vw, 5rem);
  width: min(960px, 100%);
  margin-inline: auto;
}

.knowledge-article__header-layout--with-visual {
  grid-template-columns: minmax(0, 1.05fr) minmax(260px, 0.55fr);
  width: min(1120px, 100%);
}

.knowledge-article__header-content {
  min-width: 0;
}

.knowledge-article__hero-visual {
  align-self: center;
  margin: 0;
}

.knowledge-article__hero-visual img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 1rem;
}

.knowledge-article__hero-visual figcaption,
.knowledge-block__credit {
  display: block;
  margin-top: 0.65rem;
  color: #686f79;
  font-size: 0.78rem;
  line-height: 1.6;
}

.knowledge-article__meta {
  margin: 1.25rem 0 0;
  color: #646b76;
  font-size: 0.82rem;
}

.knowledge-article__body,
.knowledge-article__body p,
.knowledge-article__body li,
.knowledge-article__aside,
.knowledge-boundary,
.knowledge-related {
  overflow-wrap: anywhere;
}

.knowledge-article__body > section {
  scroll-margin-top: 6rem;
}

.knowledge-article__toc ol,
.knowledge-source-list {
  display: grid;
  gap: 0.4rem;
  margin: 0;
  padding-left: 1.2rem;
}

.knowledge-article__toc a,
.knowledge-source-list a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: #28316f;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

.knowledge-concept-list {
  display: grid;
  gap: 0.4rem;
  margin: 0;
}

.knowledge-concept-list dt {
  margin-top: 0.55rem;
  color: #252c36;
  font-weight: 700;
}

.knowledge-concept-list dd {
  margin: 0;
  color: #59606b;
  line-height: 1.65;
}

.knowledge-block--horizontal ol {
  grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr));
}

.knowledge-block--figure {
  max-width: 100%;
  margin-inline: 0;
}

.knowledge-block--figure picture {
  display: block;
}

.knowledge-block--figure img {
  max-width: 100%;
  object-fit: contain;
}

.knowledge-block--figure-inline {
  width: min(100%, 40rem);
}

.knowledge-block--figure-wide,
.knowledge-block--figure-full {
  width: 100%;
}

.knowledge-block__availability {
  color: #646b76 !important;
  font-size: 0.88rem !important;
}

.knowledge-article__aside {
  position: sticky;
  top: 5.5rem;
}

.knowledge-empty-state__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.knowledge-empty-state__actions a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
}

@media (max-width: 900px) {
  .knowledge-article__header-layout--with-visual {
    grid-template-columns: 1fr;
  }

  .knowledge-article__hero-visual {
    width: min(100%, 36rem);
  }

  .knowledge-article__aside {
    position: static;
  }

  .knowledge-block--horizontal ol {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .knowledge-article__header h1 {
    font-size: clamp(2.55rem, 13vw, 4.2rem);
    line-height: 1.02;
  }

  .knowledge-article__layout,
  .knowledge-article > .knowledge-boundary,
  .knowledge-related,
  .knowledge-exit-grid {
    width: min(100% - 1.5rem, 960px);
  }

  .knowledge-block--mechanism,
  .knowledge-block--timeline,
  .knowledge-block--comparison,
  .knowledge-block--question,
  .knowledge-block--insight,
  .knowledge-block--next-node {
    padding: 1rem;
  }
}

@media print {
  .knowledge-article__actions,
  .knowledge-article__toc,
  .knowledge-exit-grid {
    display: none;
  }

  .knowledge-article__layout {
    display: block;
  }
}

@media (prefers-reduced-motion: reduce) {
  .knowledge-article-shell[aria-busy="true"] {
    animation: none;
  }
}