.oby-encyclopedia {
  --oby-bg: #f6f4ef;
  --oby-surface: #ffffff;
  --oby-surface-soft: #f0ede6;
  --oby-border: #d8d2c6;
  --oby-text: #1f1b17;
  --oby-muted: #665f56;
  --oby-accent: #7a5a2f;
  --oby-shadow: 0 18px 40px rgba(37, 31, 24, 0.06);
  color: var(--oby-text);
  font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
  line-height: 1.65;
  background: var(--oby-bg);
  padding: 32px 16px 56px;
}

.oby-encyclopedia *,
.oby-encyclopedia *::before,
.oby-encyclopedia *::after {
  box-sizing: border-box;
}

.oby-encyclopedia a {
  color: inherit;
}

.oby-encyclopedia a:focus-visible,
.oby-encyclopedia summary:focus-visible {
  outline: 3px solid currentColor;
  outline-offset: 3px;
}

.oby-encyclopedia .oby-section {
  max-width: 1180px;
  margin: 0 auto 24px;
}

.oby-encyclopedia .oby-section--compact {
  max-width: 980px;
}

.oby-encyclopedia .oby-section--accent {
  padding-top: 8px;
}

.oby-encyclopedia .oby-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.9fr);
  gap: 24px;
  align-items: stretch;
}

.oby-encyclopedia .oby-hero--article {
  align-items: start;
}

.oby-encyclopedia .oby-hero__content,
.oby-encyclopedia .oby-hero__visual {
  background: var(--oby-surface);
  border: 1px solid var(--oby-border);
  border-radius: 24px;
  box-shadow: var(--oby-shadow);
}

.oby-encyclopedia .oby-hero__content {
  padding: 34px 32px;
}

.oby-encyclopedia .oby-hero__visual {
  padding: 18px;
  display: flex;
}

.oby-encyclopedia .oby-eyebrow,
.oby-encyclopedia .oby-kicker {
  margin: 0 0 10px;
  color: var(--oby-accent);
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.oby-encyclopedia h1,
.oby-encyclopedia h2,
.oby-encyclopedia h3 {
  margin: 0;
  line-height: 1.15;
  font-weight: 700;
}

.oby-encyclopedia h1 {
  font-size: clamp(2.4rem, 5vw, 4.4rem);
  max-width: 12ch;
}

.oby-encyclopedia h2 {
  font-size: clamp(1.7rem, 3vw, 2.5rem);
  margin-bottom: 16px;
}

.oby-encyclopedia h3 {
  font-size: 1.18rem;
}

.oby-encyclopedia p {
  margin: 0 0 14px;
}

.oby-encyclopedia .oby-lead {
  font-size: 1.12rem;
  color: var(--oby-muted);
  max-width: 52ch;
  margin: 18px 0 20px;
}

.oby-encyclopedia .oby-richtext p:last-child {
  margin-bottom: 0;
}

.oby-encyclopedia .oby-button,
.oby-encyclopedia .oby-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  text-decoration: none;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.oby-encyclopedia .oby-button {
  min-height: 48px;
  padding: 0 22px;
  background: var(--oby-text);
  color: #fff;
  border: 1px solid var(--oby-text);
  font-weight: 700;
}

.oby-encyclopedia .oby-button:hover,
.oby-encyclopedia .oby-button:focus-visible {
  background: #3b332b;
  border-color: #3b332b;
}

.oby-encyclopedia .oby-button--secondary {
  background: var(--oby-surface);
  color: var(--oby-text);
}

.oby-encyclopedia .oby-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.oby-encyclopedia .oby-hero__meta {
  margin-top: 14px;
}

.oby-encyclopedia .oby-card {
  background: var(--oby-surface);
  border: 1px solid var(--oby-border);
  border-radius: 22px;
  padding: 22px;
  box-shadow: var(--oby-shadow);
}

.oby-encyclopedia .oby-grid {
  display: grid;
  gap: 16px;
}

.oby-encyclopedia .oby-grid--entries,
.oby-encyclopedia .oby-grid--related {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.oby-encyclopedia .oby-grid--articles {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.oby-encyclopedia .oby-grid--series {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.oby-encyclopedia .oby-grid--claims,
.oby-encyclopedia .oby-grid--evidence {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.oby-encyclopedia .oby-two-column {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.oby-encyclopedia .oby-knowledge-flow {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}

.oby-encyclopedia .oby-knowledge-flow__item {
  min-height: 100%;
}

.oby-encyclopedia .oby-stack {
  display: grid;
  gap: 16px;
}

.oby-encyclopedia .oby-list {
  margin: 0;
  padding-left: 20px;
}

.oby-encyclopedia .oby-list li + li {
  margin-top: 10px;
}

.oby-encyclopedia .oby-list--tight li + li {
  margin-top: 8px;
}

.oby-encyclopedia .oby-section__header {
  max-width: 740px;
  margin-bottom: 18px;
}

.oby-encyclopedia .oby-entry-card,
.oby-encyclopedia .oby-related-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.oby-encyclopedia .oby-related-card--linked,
.oby-encyclopedia .oby-article-index {
  color: inherit;
  text-decoration: none;
  transition:
    transform 160ms ease,
    box-shadow 160ms ease,
    border-color 160ms ease;
}

.oby-encyclopedia .oby-related-card--linked:hover,
.oby-encyclopedia .oby-article-index:hover,
.oby-encyclopedia .oby-related-card--linked:focus-visible,
.oby-encyclopedia .oby-article-index:focus-visible {
  transform: translateY(-2px);
}

.oby-encyclopedia .oby-entry-card p,
.oby-encyclopedia .oby-related-card p {
  color: var(--oby-muted);
}

.oby-encyclopedia .oby-link {
  width: fit-content;
  padding-bottom: 2px;
  border-bottom: 1px solid currentColor;
}

.oby-encyclopedia .oby-series-card {
  display: grid;
  gap: 12px;
}

.oby-encyclopedia .oby-series-card__lede,
.oby-encyclopedia .oby-series-card__note {
  color: var(--oby-muted);
}

.oby-encyclopedia .oby-series-card__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 14px;
  margin: 0;
}

.oby-encyclopedia .oby-series-card__grid div {
  padding-top: 10px;
  border-top: 1px solid var(--oby-border);
}

.oby-encyclopedia .oby-series-card__grid dt {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--oby-muted);
}

.oby-encyclopedia .oby-series-card__grid dd {
  margin: 4px 0 0;
}

.oby-encyclopedia .oby-cta-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}

.oby-encyclopedia .oby-status {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 0.82rem;
  border: 1px solid var(--oby-border);
  color: var(--oby-muted);
  background: var(--oby-surface-soft);
}

.oby-encyclopedia .oby-status--draft {
  background: rgba(122, 90, 47, 0.08);
}

.oby-encyclopedia .oby-status--review {
  background: rgba(31, 27, 23, 0.06);
}

.oby-encyclopedia .oby-status--limited {
  background: rgba(184, 122, 62, 0.12);
}

.oby-encyclopedia .oby-faq {
  display: grid;
  gap: 14px;
}

.oby-encyclopedia .oby-faq__item {
  padding: 0;
  overflow: hidden;
}

.oby-encyclopedia .oby-faq__title {
  font-size: inherit;
}

.oby-encyclopedia .oby-faq__button {
  width: 100%;
  border: 0;
  background: transparent;
  color: inherit;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 22px;
  cursor: pointer;
  font: inherit;
  text-align: left;
}

.oby-encyclopedia .oby-faq__button[aria-expanded="true"] .oby-faq__icon {
  transform: rotate(45deg);
}

.oby-encyclopedia .oby-faq__icon {
  font-size: 1.4rem;
  line-height: 1;
  transition: transform 0.2s ease;
}

.oby-encyclopedia .oby-faq__answer {
  padding: 0 22px 20px;
}

.oby-encyclopedia .oby-faq__answer[hidden] {
  display: none;
}

.oby-encyclopedia .oby-breadcrumbs {
  max-width: 980px;
  color: var(--oby-muted);
  font-size: 0.95rem;
}

.oby-encyclopedia .oby-visual-placeholder {
  width: 100%;
  min-height: 100%;
  display: grid;
  align-content: start;
  gap: 14px;
  background:
    linear-gradient(180deg, rgba(122, 90, 47, 0.08), rgba(122, 90, 47, 0.02)),
    var(--oby-surface-soft);
}

.oby-encyclopedia .oby-visual-placeholder__meta {
  width: fit-content;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--oby-border);
  background: rgba(255, 255, 255, 0.7);
  font-size: 0.82rem;
  color: var(--oby-muted);
}

.oby-encyclopedia .oby-visual-placeholder__desc {
  color: var(--oby-muted);
  margin-bottom: 0;
}

.oby-encyclopedia .oby-topic-summary,
.oby-encyclopedia .oby-origin-card,
.oby-encyclopedia .oby-claim-card,
.oby-encyclopedia .oby-evidence-card,
.oby-encyclopedia .oby-article-index,
.oby-encyclopedia .oby-comparison-note {
  display: grid;
  gap: 12px;
}

.oby-encyclopedia .oby-quick-answer {
  border-color: rgba(122, 90, 47, 0.28);
  background: linear-gradient(180deg, rgba(122, 90, 47, 0.06), rgba(122, 90, 47, 0.02)), var(--oby-surface);
}

.oby-encyclopedia .oby-article-v2__hero {
  padding-top: 24px;
  padding-bottom: 24px;
}

.oby-encyclopedia .oby-article-v2__sections {
  display: grid;
  gap: 14px;
}

.oby-encyclopedia .oby-article-v2__jump-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  align-items: center;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--oby-border);
}

.oby-encyclopedia .oby-article-v2__jump-label {
  color: var(--oby-muted);
  font-size: 0.95rem;
}

.oby-encyclopedia .oby-detail {
  padding: 0;
  overflow: hidden;
}

.oby-encyclopedia .oby-detail__summary {
  list-style: none;
  cursor: pointer;
  padding: 18px 22px;
  font-size: 1.06rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.oby-encyclopedia .oby-detail__summary::-webkit-details-marker {
  display: none;
}

.oby-encyclopedia .oby-detail__summary::after {
  content: "+";
  color: var(--oby-muted);
  font-size: 1.2rem;
  line-height: 1;
}

.oby-encyclopedia .oby-detail[open] .oby-detail__summary::after {
  content: "−";
}

.oby-encyclopedia .oby-detail__body {
  padding: 0 22px 22px;
}

.oby-encyclopedia .oby-related-card--primary {
  border-color: rgba(122, 90, 47, 0.28);
}

.oby-encyclopedia .oby-related-card__meta,
.oby-encyclopedia .oby-related-card__action,
.oby-encyclopedia .oby-evidence-card__links {
  color: var(--oby-muted);
  font-size: 0.92rem;
}

.oby-encyclopedia .next-question-card {
  display: grid;
  gap: 12px;
  color: inherit;
  text-decoration: none;
  transition:
    transform 160ms ease,
    box-shadow 160ms ease,
    border-color 160ms ease;
}

.oby-encyclopedia .next-question-card:hover {
  transform: translateY(-2px);
}

.oby-encyclopedia .next-question-card:focus-visible {
  outline: 3px solid currentColor;
  outline-offset: 3px;
}

.oby-encyclopedia .next-question-card__label,
.oby-encyclopedia .next-question-card__action {
  color: var(--oby-muted);
  font-size: 0.9rem;
}

.oby-encyclopedia .next-question-card--primary {
  border-color: rgba(122, 90, 47, 0.28);
}

.oby-encyclopedia .oby-topic-rows,
.oby-encyclopedia .oby-topic-article-list,
.oby-encyclopedia .oby-evidence-list {
  display: grid;
  gap: 12px;
}

.oby-encyclopedia .oby-topic-row,
.oby-encyclopedia .oby-topic-article {
  display: grid;
  gap: 16px;
  align-items: center;
  color: inherit;
  text-decoration: none;
  transition:
    transform 160ms ease,
    box-shadow 160ms ease,
    border-color 160ms ease;
}

.oby-encyclopedia .oby-topic-row {
  grid-template-columns: minmax(160px, 0.8fr) minmax(0, 1.4fr) auto auto;
}

.oby-encyclopedia .oby-topic-article {
  grid-template-columns: minmax(0, 1fr) auto;
}

.oby-encyclopedia .oby-topic-row:hover,
.oby-encyclopedia .oby-topic-row:focus-visible,
.oby-encyclopedia .oby-topic-article:hover,
.oby-encyclopedia .oby-topic-article:focus-visible {
  transform: translateY(-2px);
}

.oby-encyclopedia .oby-topic-row__title,
.oby-encyclopedia .oby-topic-row__count,
.oby-encyclopedia .oby-topic-row__arrow {
  font-weight: 700;
}

.oby-encyclopedia .oby-topic-row__description,
.oby-encyclopedia .oby-topic-article p,
.oby-encyclopedia .oby-evidence-list__meta {
  color: var(--oby-muted);
}

.oby-encyclopedia .oby-topic-row__count {
  white-space: nowrap;
}

.oby-encyclopedia .oby-topic-row__arrow,
.oby-encyclopedia .oby-topic-article span[aria-hidden="true"] {
  font-size: 1.25rem;
}

.oby-encyclopedia .oby-evidence-list {
  margin: 0;
  padding-left: 20px;
}

.oby-encyclopedia .oby-evidence-list li p {
  margin-top: 6px;
  margin-bottom: 0;
}

.oby-encyclopedia .oby-status {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid var(--oby-border);
  background: var(--oby-surface-soft);
  font-size: 0.92rem;
}

.oby-encyclopedia .oby-status--ready {
  border-color: rgba(122, 90, 47, 0.28);
}

.oby-encyclopedia .oby-status--review {
  border-color: rgba(31, 27, 23, 0.16);
}

.oby-encyclopedia .oby-claim-card__meta,
.oby-encyclopedia .oby-evidence-card__meta,
.oby-encyclopedia .oby-article-index__meta {
  color: var(--oby-muted);
  font-size: 0.88rem;
}

.oby-encyclopedia .oby-article-status {
  color: var(--oby-muted);
  font-size: 0.92rem;
}

.oby-encyclopedia .oby-hero__visual .oby-visual-placeholder {
  min-height: 100%;
}

@media (prefers-reduced-motion: reduce) {
  .oby-encyclopedia,
  .oby-encyclopedia *,
  .oby-encyclopedia *::before,
  .oby-encyclopedia *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}

@media (max-width: 920px) {
  .oby-encyclopedia .oby-hero,
  .oby-encyclopedia .oby-two-column,
  .oby-encyclopedia .oby-knowledge-flow,
  .oby-encyclopedia .oby-grid--series,
  .oby-encyclopedia .oby-grid--articles,
  .oby-encyclopedia .oby-grid--claims,
  .oby-encyclopedia .oby-grid--evidence,
  .oby-encyclopedia .oby-grid--entries,
  .oby-encyclopedia .oby-grid--related {
    grid-template-columns: 1fr;
  }

  .oby-encyclopedia .oby-topic-row,
  .oby-encyclopedia .oby-topic-article {
    grid-template-columns: 1fr;
  }

  .oby-encyclopedia .oby-cta-card {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 640px) {
  .oby-encyclopedia {
    padding: 18px 10px 40px;
  }

  .oby-encyclopedia .oby-hero__content,
  .oby-encyclopedia .oby-card,
  .oby-encyclopedia .oby-hero__visual {
    padding: 18px;
    border-radius: 18px;
  }

  .oby-encyclopedia .oby-series-card__grid {
    grid-template-columns: 1fr;
  }
}