/* Unified PAC-832 overview / technical-paper page */

body.pac832-page {
  min-height: 100vh;
  background: var(--bg);
  --reading-top: calc(var(--site-nav-h) + 3.15rem);
}

.pac832-view-bar {
  position: sticky;
  top: var(--site-nav-h);
  z-index: 900;
  width: 100%;
  border-bottom: 1px solid var(--border);
  background: rgba(252, 252, 248, 0.96);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.pac832-view-bar-inner {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 2.5rem;
}

.pac832-view-tabs {
  display: flex;
  align-items: center;
  gap: 1.6rem;
  min-height: 3.15rem;
}

.pac832-view-tab {
  position: relative;
  margin: 0;
  padding: 0.95rem 0 0.82rem;
  border: 0;
  background: transparent;
  color: var(--text-secondary);
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  font-size: 0.84rem;
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0.01em;
  cursor: pointer;
  opacity: 1;
}

.pac832-view-tab::after {
  content: '';
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 2px;
  background: var(--text);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 180ms ease;
}

.pac832-view-tab:hover {
  color: var(--text);
  opacity: 1;
}

.pac832-view-tab[aria-selected='true'] {
  color: var(--text);
  opacity: 1;
}

.pac832-view-tab[aria-selected='true']::after {
  transform: scaleX(1);
}

.pac832-view-tab:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

.pac832-view-host {
  min-height: calc(100vh - 7.65rem);
}

.pac832-view-host[aria-busy='true'] {
  cursor: progress;
}

.pac832-view-status {
  width: min(100% - 5rem, 720px);
  margin: 0 auto;
  padding: 4rem 0 7rem;
  color: var(--text-secondary);
  font-family: 'Merriweather', Georgia, serif;
  font-size: 0.96rem;
  line-height: 1.7;
}

.pac832-view-status button {
  margin-top: 1rem;
  padding: 0 0 0.2rem;
  border: 0;
  border-bottom: 1px solid currentColor;
  background: transparent;
  color: var(--text);
  font: 600 0.88rem/1.3 'Inter', system-ui, sans-serif;
  cursor: pointer;
}

.pac832-page #toc-sidebar[hidden] {
  display: none !important;
}

body.pac832-page #toc-sidebar {
  top: var(--reading-top);
  height: calc(100vh - var(--reading-top));
}

.pac832-view-host article[hidden] {
  display: none !important;
}

/* The standalone overview defines these treatments in its document head. Since
   the unified PAC-832 page imports only the article, preserve them here so the
   injected figures retain the original presentation. Keep this scoped to the
   overview: technical-paper figures should continue using their own styling. */
#pac832-overview figure img {
  border-radius: 6px;
}

#pac832-overview img.paper-title {
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.22);
}

body.pac832-page section[id],
body.pac832-page figure[id],
body.pac832-page h2[id],
body.pac832-page h3[id] {
  scroll-margin-top: calc(var(--reading-top) + 1rem);
}

@media (min-width: 900px) {
  body.pac832-page.view-overview article {
    margin-right: auto;
    margin-left: auto;
  }
}

@media (max-width: 720px) {
  .pac832-view-bar { top: var(--site-nav-h); }
  .pac832-view-bar-inner { padding: 0 1.35rem; }
  .pac832-view-tabs { min-height: 3.15rem; }
  .pac832-view-status { width: calc(100% - 2.7rem); }
  body.pac832-page #toc-sidebar {
    top: var(--reading-top);
    height: calc(100vh - var(--reading-top));
  }

  body.pac832-page section[id],
  body.pac832-page figure[id],
  body.pac832-page h2[id],
  body.pac832-page h3[id] {
    scroll-margin-top: calc(var(--reading-top) + 1rem);
  }
}

body.pac832-page.view-overview #toc-mobile { display: none; }
@media (max-width: 899px) {
  body.pac832-page { --reading-top: calc(var(--site-nav-h) + 6.4rem); }
  body.pac832-page #toc-mobile { top: calc(var(--site-nav-h) + 3.15rem); }
  body.pac832-page.view-overview { --reading-top: calc(var(--site-nav-h) + 3.15rem); }
}

@media (prefers-reduced-motion: reduce) {
  .pac832-view-tab::after { transition: none; }
}