.catalog-page main {
  padding-bottom: 96px;
}

.catalog-page h1,
.catalog-page h2,
.catalog-page h3 {
  color: var(--text-bright);
}

.catalog-page h1,
.catalog-page h2 {
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: -0.025em;
}

.catalog-page h3 {
  font-family: var(--font-body);
  font-weight: 600;
  letter-spacing: -0.015em;
}

.catalog-page a:not(.wordmark):not(.button) {
  text-underline-offset: 3px;
}

.catalog-page p {
  max-width: 70ch;
}

.catalog-intro {
  padding-top: 64px;
  padding-bottom: 48px;
}

.catalog-intro h1 {
  max-width: 850px;
  margin: 0;
  font-size: clamp(38px, 4.5vw, 58px);
  line-height: 1.1;
}

.catalog-intro > p {
  max-width: 710px;
  margin: 24px 0 0;
  color: var(--text);
  font-size: 19px;
  line-height: 1.6;
}

.catalog-meta {
  margin: 0;
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.5;
}

.catalog-section-heading {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 24px;
  margin-bottom: 24px;
}

.catalog-section-heading h2,
.catalog-directory > h2 {
  margin: 0;
  font-size: 30px;
  line-height: 1.2;
}

.catalog-section-heading > a {
  flex-shrink: 0;
  font-size: 15px;
}

.catalog-page pre {
  overflow-x: auto;
  margin: 20px 0;
  padding: 18px 20px;
  border: 1px solid var(--line);
  background: var(--surface-raised);
  color: var(--text-bright);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.7;
  tab-size: 2;
}

.catalog-page pre code {
  font: inherit;
}

.catalog-resource-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 24px;
  margin-top: 24px;
  font-size: 15px;
}

.catalog-tool-lead {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.8fr);
  gap: 72px;
  padding-top: 32px;
  padding-bottom: 48px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.catalog-tool-lead h2 {
  margin: 8px 0 16px;
  font-size: 40px;
  line-height: 1.2;
}

.catalog-tool-lead h2 a,
.catalog-world h2 a {
  color: var(--text-bright);
  text-decoration: none;
}

.catalog-tool-lead h2 a:hover,
.catalog-world h2 a:hover {
  text-decoration: underline;
}

.catalog-tool-lead p {
  margin-top: 16px;
  margin-bottom: 0;
}

.catalog-tool-lead .catalog-meta {
  margin-top: 0;
}

.catalog-lead-summary {
  font-size: 21px;
  line-height: 1.5;
}

.catalog-lead-install {
  align-self: center;
}

.catalog-lead-install h3 {
  margin: 0;
  font-size: 18px;
}

.catalog-lead-install p {
  color: var(--text-muted);
  font-size: 15px;
}

.catalog-directory {
  padding-top: 48px;
}

.catalog-directory > h2 {
  margin-bottom: 24px;
}

.catalog-tool-list {
  border-top: 1px solid var(--line);
}

.catalog-tool-row {
  display: grid;
  grid-template-columns: minmax(220px, 0.8fr) minmax(0, 1.6fr) auto;
  align-items: start;
  gap: 32px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}

.catalog-tool-name h3 {
  margin: 0;
  font-size: 18px;
  line-height: 1.4;
  overflow-wrap: anywhere;
}

.catalog-tool-name h3 a {
  text-decoration: none;
}

.catalog-tool-name h3 a:hover {
  text-decoration: underline;
}

.catalog-tool-name p {
  margin: 5px 0 0;
  color: var(--text-muted);
  font-size: 14px;
}

.catalog-tool-purpose {
  margin: 0;
  font-size: 16px;
  line-height: 1.6;
}

.catalog-row-links {
  display: flex;
  gap: 20px;
  padding-top: 2px;
  font-size: 14px;
}

.catalog-notes-section {
  margin-top: 72px;
}

.catalog-note-list {
  border-top: 1px solid var(--line);
}

.catalog-note-row {
  padding: 28px 0 32px;
  border-bottom: 1px solid var(--line);
}

.catalog-note-row h2 {
  max-width: 750px;
  margin: 9px 0 12px;
  font-size: 27px;
  line-height: 1.3;
}

.catalog-note-row h2 a {
  text-decoration: none;
}

.catalog-note-row h2 a:hover {
  text-decoration: underline;
}

.catalog-note-row > p:last-child {
  max-width: 770px;
  margin: 0;
  color: var(--text-muted);
}

.catalog-notes-index {
  max-width: 900px;
}

.catalog-model-intro {
  padding-bottom: 40px;
}

.catalog-model-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  margin-top: 28px;
  font-size: 16px;
}

.catalog-world-list {
  border-top: 1px solid var(--line);
}

.catalog-world {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  align-items: center;
  gap: 56px;
  padding: 40px 0;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 32px;
}

.catalog-world-media {
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background: var(--surface); border: 1px solid var(--line);
}

.catalog-world-media img,
.catalog-world-media video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.catalog-world-media.morph img { object-fit: contain; }

.catalog-world h2 {
  margin: 7px 0 18px;
  font-size: 38px;
  line-height: 1.2;
}

.catalog-world-copy .catalog-question {
  max-width: 28ch;
  margin: 0 0 14px;
  color: var(--text-bright);
  font-size: 21px;
  line-height: 1.45;
}

.catalog-world-copy > p:not(.catalog-meta):not(.catalog-question) {
  max-width: 48ch;
  margin: 0;
  color: var(--text-muted);
  font-size: 16px;
}

.catalog-open-world {
  display: inline-block;
  margin-top: 24px;
  font-size: 16px;
}

.catalog-method {
  display: grid;
  grid-template-columns: minmax(0, 0.75fr) minmax(0, 1.25fr);
  gap: 72px;
  padding-top: 64px;
  padding-bottom: 64px;
}

.catalog-method h2,
.catalog-research-paths h2 {
  margin: 0 0 16px;
  font-size: 30px;
  line-height: 1.25;
}

.catalog-method > div > p {
  max-width: 35ch;
  margin: 0;
  color: var(--text-muted);
}

.catalog-method ol {
  margin: 0;
  padding-left: 25px;
}

.catalog-method li {
  padding-left: 10px;
}

.catalog-method li + li {
  margin-top: 28px;
}

.catalog-method li::marker {
  color: var(--text-muted);
}

.catalog-method h3 {
  margin: 0 0 7px;
  font-size: 18px;
}

.catalog-method li p {
  margin: 0;
  color: var(--text-muted);
}

.catalog-research-paths {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 72px;
  padding-top: 40px;
  border-top: 1px solid var(--line);
}

.catalog-research-paths p {
  margin: 0;
}

.catalog-research-paths pre {
  margin-top: 24px;
}

.catalog-tool-detail,
.catalog-field-note {
  padding-top: 32px;
}

.catalog-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.5;
}

.catalog-article-hero {
  max-width: 860px;
  padding: 40px 0 44px;
}

.catalog-article-hero h1 {
  margin: 12px 0 24px;
  font-size: clamp(34px, 4.1vw, 52px);
  line-height: 1.12;
  overflow-wrap: anywhere;
}

.catalog-article-hero > p:not(.catalog-meta) {
  max-width: 740px;
  margin: 18px 0 0;
}

.catalog-article-lede {
  color: var(--text-bright);
  font-size: 22px;
  line-height: 1.5;
}

.catalog-article-layout {
  display: grid;
  grid-template-columns: 210px minmax(0, 740px);
  gap: 64px;
  border-top: 1px solid var(--line);
}

.catalog-contents {
  align-self: start;
  position: sticky;
  top: 32px;
  padding-top: 32px;
}

.catalog-contents > p {
  margin: 0 0 14px;
  color: var(--text-muted);
  font-size: 14px;
}

.catalog-contents > a {
  display: block;
  margin: 9px 0;
  font-size: 15px;
}

.catalog-article-body {
  min-width: 0;
}

.catalog-article-section {
  padding: 32px 0 36px;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 32px;
}

.catalog-article-section h2 {
  margin: 0 0 18px;
  font-size: 29px;
  line-height: 1.25;
}

.catalog-article-section > p {
  margin: 16px 0 0;
}

.catalog-article-section ul {
  margin: 0;
  padding-left: 23px;
}

.catalog-article-section li {
  padding-left: 4px;
}

.catalog-article-section li + li {
  margin-top: 10px;
}

.catalog-evidence {
  margin: 0;
}

.catalog-evidence figcaption {
  margin-bottom: 12px;
  color: var(--text-muted);
  font-size: 14px;
}

.catalog-evidence h3 {
  max-width: 50ch;
  margin: 0 0 14px;
  font-size: 20px;
  line-height: 1.45;
}

.catalog-evidence p {
  margin: 0;
}

.catalog-evidence .catalog-resource-links {
  margin-top: 16px;
}

.catalog-related {
  margin-top: 64px;
}

.catalog-field-note {
  width: min(100%, 760px);
  margin-inline: auto;
}

.catalog-field-note .catalog-article-hero {
  border-bottom: 1px solid var(--line);
}

.catalog-field-note .catalog-article-hero h1 {
  max-width: 24ch;
  font-size: clamp(34px, 4vw, 48px);
  line-height: 1.16;
}

.catalog-field-note .catalog-article-lede {
  font-size: 21px;
}

.catalog-workflow-step {
  margin-top: 30px;
}

.catalog-workflow-step h3 {
  margin: 0 0 10px;
  font-size: 20px;
  line-height: 1.4;
}

.catalog-workflow-step p {
  margin: 0;
}

@media (max-width: 960px) {
  .catalog-tool-lead,
  .catalog-world,
  .catalog-method,
  .catalog-research-paths {
    gap: 36px;
  }

  .catalog-tool-row {
    grid-template-columns: minmax(180px, 0.8fr) minmax(0, 1.4fr) auto;
    gap: 24px;
  }

  .catalog-row-links {
    flex-direction: column;
    gap: 8px;
  }

  .catalog-article-layout {
    grid-template-columns: 165px minmax(0, 1fr);
    gap: 36px;
  }
}

@media (max-width: 700px) {
  .catalog-page main {
    padding-bottom: 64px;
  }

  .catalog-intro {
    padding-top: 40px;
    padding-bottom: 32px;
  }

  .catalog-intro > p {
    margin-top: 20px;
    font-size: 18px;
  }

  .catalog-tool-lead,
  .catalog-world,
  .catalog-method,
  .catalog-research-paths,
  .catalog-article-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }

  .catalog-tool-lead {
    padding-top: 28px;
    padding-bottom: 32px;
  }

  .catalog-lead-install {
    padding-top: 24px;
    border-top: 1px solid var(--line);
  }

  .catalog-tool-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 12px;
  }

  .catalog-row-links {
    flex-direction: row;
    gap: 24px;
    padding-top: 0;
  }

  .catalog-notes-section {
    margin-top: 48px;
  }

  .catalog-section-heading {
    gap: 16px;
  }

  .catalog-note-row h2 {
    font-size: 25px;
  }

  .catalog-model-jump {
    gap: 12px 24px;
  }

  .catalog-world {
    gap: 24px;
    padding: 28px 0 32px;
  }

  .catalog-world-media.morph img { object-fit: contain; }

.catalog-world h2 {
    margin-bottom: 14px;
    font-size: 34px;
  }

  .catalog-world-copy .catalog-question {
    max-width: 35ch;
  }

  .catalog-method {
    padding-top: 40px;
    padding-bottom: 40px;
  }

  .catalog-research-paths {
    padding-top: 32px;
  }

  .catalog-research-paths article + article {
    padding-top: 28px;
    border-top: 1px solid var(--line);
  }

  .catalog-tool-detail,
  .catalog-field-note {
    padding-top: 24px;
  }

  .catalog-article-hero {
    padding: 32px 0;
  }

  .catalog-article-hero h1 {
    margin-bottom: 20px;
  }

  .catalog-article-lede {
    font-size: 20px;
  }

  .catalog-contents {
    display: flex;
    flex-wrap: wrap;
    position: static;
    gap: 12px 20px;
    padding-top: 24px;
  }

  .catalog-contents > p {
    flex-basis: 100%;
    margin: 0;
  }

  .catalog-contents > a {
    margin: 0;
  }

  .catalog-article-layout {
    gap: 4px;
  }

  .catalog-article-section {
    padding: 28px 0 32px;
  }

  .catalog-article-section h2 {
    font-size: 27px;
  }

  .catalog-page pre {
    padding: 14px;
    font-size: 12px;
  }

  .catalog-related {
    margin-top: 48px;
  }
}