.whitepaper-page {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 34px 0 56px;
}

.whitepaper-page h1,
.whitepaper-page h2,
.whitepaper-page h3 {
  line-height: 1.08;
  letter-spacing: 0;
}

.paper-index-hero,
.paper-hero {
  display: grid;
  gap: 20px;
  padding: 58px 0 44px;
}

.paper-index-hero {
  max-width: 880px;
}

.paper-index-hero h1,
.paper-hero h1 {
  margin: 0;
  font-size: 58px;
}

.paper-index-hero > p:last-child,
.paper-lead,
.paper-stance {
  max-width: 800px;
  margin: 0;
  color: var(--muted);
  font-size: 19px;
}

.paper-lead {
  color: var(--fg);
  font-size: 24px;
}

.paper-eyebrow,
.paper-section-role {
  margin: 0;
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

.paper-page-kicker {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.paper-page-kicker a {
  font-weight: 700;
}

.paper-page-kicker span {
  text-align: right;
}

.paper-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.paper-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 9px 15px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--fg);
  font-weight: 700;
  text-decoration: none;
}

.paper-button.primary {
  border-color: var(--accent);
  background: var(--accent);
  color: #ffffff;
}

.paper-catalog {
  display: grid;
  gap: 18px;
  padding: 24px 0 12px;
  border-top: 1px solid var(--line);
}

.paper-listing {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(220px, 0.42fr);
  gap: 28px 42px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
}

.paper-listing.featured-whitepaper {
  border: 2px solid var(--accent);
  background: linear-gradient(135deg, rgba(11, 111, 104, 0.13), var(--panel) 62%);
  box-shadow: inset 5px 0 0 var(--accent), 0 18px 48px rgba(18, 23, 34, 0.10);
}

.paper-type-badge {
  width: fit-content;
  margin: 0;
  padding: 4px 9px;
  border: 1px solid var(--line);
  background: var(--panel-soft);
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  line-height: 1.4;
  text-transform: uppercase;
}

.paper-type-badge.whitepaper {
  border-color: var(--accent);
  background: var(--fg);
  color: var(--bg);
}

.paper-listing-copy {
  display: grid;
  gap: 13px;
}

.paper-listing-copy h2,
.paper-listing-copy p {
  margin: 0;
}

.paper-listing-copy h2 {
  font-size: 32px;
}

.paper-listing-facts,
.paper-source-facts {
  margin: 0;
}

.paper-listing-facts > div,
.paper-source-facts > div {
  display: grid;
  gap: 3px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.paper-listing-facts dt,
.paper-source-facts dt {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.paper-listing-facts dd,
.paper-source-facts dd {
  min-width: 0;
  margin: 0;
  overflow-wrap: anywhere;
}

.paper-listing > .paper-actions {
  grid-column: 1 / -1;
}

.paper-source-catalog {
  display: grid;
  gap: 24px;
  padding: 54px 0 18px;
}

.paper-source-heading {
  display: grid;
  gap: 12px;
  max-width: 820px;
}

.paper-source-heading h2,
.paper-source-heading p {
  margin: 0;
}

.paper-source-heading h2 {
  font-size: 36px;
}

.paper-source-heading > p:last-child {
  color: var(--muted);
  font-size: 18px;
}

.paper-source-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.paper-source-card {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
}

.paper-source-card h3 {
  margin: 10px 0 14px;
  font-size: 27px;
}

.paper-source-card p,
.paper-source-card ul {
  margin: 0 0 16px;
}

.paper-source-card ul {
  padding-left: 20px;
}

.paper-preview {
  padding: 28px 0 42px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.paper-preview-heading {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: end;
  margin-bottom: 18px;
}

.paper-preview-heading h2 {
  margin: 5px 0 0;
  font-size: 28px;
}

.paper-preview object {
  display: block;
  width: 100%;
  height: 620px;
  border: 1px solid var(--line);
  background: var(--panel-soft);
}

.paper-layout {
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr);
  gap: 72px;
  padding-top: 46px;
}

.paper-sidebar {
  position: sticky;
  top: 24px;
  align-self: start;
  display: grid;
  gap: 28px;
  max-height: calc(100vh - 48px);
  overflow: auto;
  padding-right: 8px;
}

.paper-toc {
  display: grid;
  gap: 8px;
}

.paper-toc strong {
  margin-bottom: 4px;
}

.paper-toc a {
  padding: 5px 0 5px 12px;
  border-left: 2px solid var(--line);
  color: var(--muted);
  text-decoration: none;
}

.paper-toc a:hover,
.paper-toc a:focus-visible {
  border-left-color: var(--accent);
  color: var(--fg);
}

.paper-article {
  width: min(100%, 790px);
}

.paper-section {
  padding: 8px 0 48px;
  scroll-margin-top: 24px;
}

.paper-section + .paper-section {
  padding-top: 42px;
  border-top: 1px solid var(--line);
}

.paper-section h2 {
  margin: 8px 0 22px;
  font-size: 38px;
}

.paper-prose {
  color: var(--fg);
  font-size: 17px;
}

.paper-prose h2,
.paper-prose h3 {
  margin: 32px 0 12px;
  font-size: 25px;
}

.paper-prose p,
.paper-prose ul,
.paper-prose ol,
.paper-prose blockquote {
  margin: 0 0 18px;
}

.paper-prose ul,
.paper-prose ol {
  padding-left: 24px;
}

.paper-prose li + li {
  margin-top: 7px;
}

.paper-prose code,
.paper-source-facts code,
.paper-listing-facts code {
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 0.86em;
  overflow-wrap: anywhere;
}

.paper-prose blockquote {
  padding: 2px 0 2px 18px;
  border-left: 3px solid var(--accent-2);
  color: var(--muted);
}

.paper-prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
}

.paper-prose th,
.paper-prose td {
  padding: 10px 12px;
  border: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.paper-principles {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 0 0 26px;
}

.paper-principle {
  display: grid;
  gap: 8px;
  min-height: 112px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface);
}

.paper-principle span {
  color: var(--accent-2);
  font-size: 13px;
  font-weight: 700;
}

.paper-principle strong {
  font-size: 17px;
}

@media (max-width: 820px) {
  .whitepaper-page {
    width: min(100% - 28px, 640px);
    padding: 28px 0 40px;
  }

  .paper-index-hero,
  .paper-hero {
    padding: 40px 0 34px;
  }

  .paper-index-hero h1,
  .paper-hero h1 {
    font-size: 40px;
  }

  .paper-lead {
    font-size: 21px;
  }

  .paper-listing,
  .paper-source-grid,
  .paper-layout {
    grid-template-columns: 1fr;
  }

  .paper-listing {
    gap: 24px;
    padding: 20px;
  }

  .paper-layout {
    gap: 36px;
    padding-top: 36px;
  }

  .paper-sidebar {
    position: static;
    max-height: none;
    overflow: visible;
    padding-right: 0;
  }

  .paper-toc {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .paper-toc strong {
    grid-column: 1 / -1;
  }

  .paper-preview object {
    height: 480px;
  }

  .paper-section h2 {
    font-size: 32px;
  }
}

@media (max-width: 520px) {
  .paper-page-kicker,
  .paper-preview-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .paper-page-kicker span {
    text-align: left;
  }

  .paper-actions,
  .paper-actions .paper-button {
    width: 100%;
  }

  .paper-toc,
  .paper-principles {
    grid-template-columns: 1fr;
  }

  .paper-preview object {
    height: 360px;
  }
}