:root {
  color-scheme: light;
}

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

html {
  scroll-behavior: smooth;
}

body.site-body {
  margin: 0;
  background: var(--ds-color-white);
  color: var(--ds-color-gray900);
  font-family: var(--ds-font-sans);
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration-color: color-mix(in srgb, var(--ds-color-accent) 70%, transparent);
  text-underline-offset: 0.18em;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

code,
pre {
  font-family: var(--ds-font-mono);
}

.skip-link {
  position: absolute;
  left: var(--ds-scale-md);
  top: 0;
  transform: translateY(-140%);
  padding: var(--ds-scale-sm) var(--ds-scale-md);
  background: var(--ds-color-black);
  color: var(--ds-color-white);
  z-index: 20;
}

.skip-link:focus {
  transform: translateY(var(--ds-scale-sm));
}

.site-shell {
  min-height: 100vh;
}

.site-main {
  width: min(980px, calc(100vw - 2rem));
  margin: 0 auto;
  padding: 0 0 var(--ds-scale-2xl);
}

.site-header,
.site-footer {
  width: min(980px, calc(100vw - 2rem));
  margin: 0 auto;
}

.site-header__inner,
.site-footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--ds-scale-md);
}

.site-header {
  padding: var(--ds-scale-lg) 0 0;
}

.site-header__inner {
  margin-top: 0;
  padding: 0 0 var(--ds-scale-md);
  border-bottom: 1px solid var(--ds-color-gray200);
}

.site-brand {
  display: inline-flex;
  align-items: center;
  font-weight: 700;
  text-decoration: none;
}

.site-nav__list,
.simple-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--ds-scale-md);
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav__list a,
.simple-list a {
  text-decoration: none;
  color: var(--ds-color-gray700);
}

.page-hero {
  padding: var(--ds-scale-xl) 0 var(--ds-scale-lg);
}

.page-hero--compact {
  padding-top: var(--ds-scale-lg);
}

.page-hero__inner {
  display: grid;
  gap: var(--ds-scale-md);
  max-width: 48rem;
}

.eyebrow,
.taxonomy-card__eyebrow {
  margin: 0;
  color: var(--ds-color-gray600);
  font-family: var(--ds-font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.page-title,
.post-title,
.section-title {
  margin: 0;
  font-family: var(--ds-font-display);
  line-height: 1.1;
}

.page-title,
.post-title {
  font-size: clamp(2rem, 4.5vw, 3.5rem);
}

.page-description,
.section-copy,
.muted-copy,
.site-footer__copy {
  margin: 0;
  color: var(--ds-color-gray700);
}

.content-section {
  padding: var(--ds-scale-md) 0 var(--ds-scale-xl);
}

.content-section--split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--ds-scale-md);
}

.content-section__header {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: var(--ds-scale-md);
  margin-bottom: var(--ds-scale-lg);
}

.post-grid,
.taxonomy-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.post-card,
.taxonomy-card,
.surface-panel,
.toc-box,
.empty-state {
  padding: var(--ds-scale-lg) 0;
  border: 0;
  border-bottom: 1px solid var(--ds-color-gray200);
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.post-card__body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 13rem;
  gap: var(--ds-scale-lg);
  align-items: start;
  width: 100%;
}

.post-card__main {
  display: grid;
  gap: 0.45rem;
}

.post-card__title,
.taxonomy-card__title {
  margin: 0;
  font-family: var(--ds-font-display);
  font-size: 1.45rem;
  line-height: 1.15;
}

.post-card__summary > :first-child {
  margin-top: 0;
}

.post-card__summary > :last-child {
  margin-bottom: 0;
}

.post-card__summary {
  max-width: 44rem;
  color: var(--ds-color-gray700);
}

.post-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--ds-scale-sm);
  color: var(--ds-color-gray500);
  font-family: var(--ds-font-mono);
  font-size: 0.76rem;
}

.post-meta span + span::before {
  content: "•";
  margin-right: var(--ds-scale-sm);
}

.taxonomy-links,
.taxonomy-links__group,
.taxonomy-chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.taxonomy-links {
  justify-content: flex-start;
  align-content: flex-start;
  padding-top: 1.9rem;
}

.taxonomy-chip {
  display: inline-flex;
  align-items: center;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  text-decoration: none;
  color: var(--ds-color-gray500);
  font-size: 0.76rem;
  line-height: 1.4;
}

.taxonomy-chip--plain {
  background: transparent;
}

.button-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.4rem;
  padding: 0 0.85rem;
  border: 1px solid var(--ds-color-gray300);
  border-radius: var(--ds-radius-full);
  background: transparent;
  color: var(--ds-color-gray900);
  font-weight: 500;
  text-decoration: none;
}

.button-link--ghost {
  color: var(--ds-color-gray700);
}

.post-layout {
  display: grid;
  gap: var(--ds-scale-lg);
  padding: var(--ds-scale-lg) 0 var(--ds-scale-2xl);
}

.post-header {
  display: grid;
  gap: var(--ds-scale-md);
  max-width: 52rem;
}

.post-body-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 18rem;
  gap: var(--ds-scale-lg);
  align-items: start;
}

.post-body {
  min-width: 0;
}

.discussion-section {
  display: grid;
  gap: var(--ds-scale-md);
  max-width: 52rem;
  padding: var(--ds-scale-lg) 0 0;
  border-top: 1px solid var(--ds-color-gray200);
}

.discussion-section__header {
  display: grid;
  gap: 0.4rem;
}

.discussion-section__title {
  margin: 0;
  color: var(--ds-color-gray600);
  font-family: var(--ds-font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  line-height: 1.4;
  text-transform: uppercase;
}

.discussion-section__status {
  margin: 0;
  color: var(--ds-color-gray700);
}

.discussion-section__embed {
  min-height: 8rem;
}

.toc-box {
  position: sticky;
  top: 6.4rem;
  order: 2;
  padding-left: var(--ds-scale-md);
  border-left: 1px solid var(--ds-color-gray200);
  border-bottom: 0;
}

.toc-box__title {
  margin: 0 0 var(--ds-scale-md);
  font-family: var(--ds-font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.generic-page,
.generic-page--standalone {
  display: grid;
  gap: var(--ds-scale-lg);
}

.page-content {
  max-width: 52rem;
}

.empty-state h2,
.surface-panel h2 {
  margin-top: 0;
}

.surface-panel {
  max-width: 100%;
}

.section-link {
  color: var(--ds-color-gray700);
  text-decoration: none;
}

.section-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--ds-scale-md);
  margin-top: var(--ds-scale-lg);
}

.section-nav .section-link {
  color: var(--ds-color-gray600);
  font-size: 0.92rem;
}

.site-footer {
  padding-bottom: var(--ds-scale-xl);
}

.site-footer__inner {
  padding: var(--ds-scale-lg) 0 0;
  border-top: 1px solid var(--ds-color-gray200);
}

.site-footer__title {
  margin: 0;
  font-family: var(--ds-font-display);
}

@media (max-width: 900px) {
  .content-section--split,
  .post-body-layout,
  .post-card__body {
    grid-template-columns: 1fr;
  }

  .toc-box {
    position: static;
    order: 0;
  }

  .taxonomy-links {
    padding-top: 0;
  }

  .discussion-section {
    padding-top: var(--ds-scale-md);
  }
}

@media (max-width: 720px) {
  .site-header__inner,
  .site-footer__inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .content-section__header {
    flex-direction: column;
    align-items: flex-start;
  }
}