:root {
  --paper: #f4efe5;
  --paper-strong: #fffdf8;
  --ink: #17201c;
  --muted: #59655f;
  --line: #cfc9bc;
  --accent: #176b4d;
  --accent-strong: #0f513a;
  --accent-soft: #dce9df;
  --night: #101815;
  --night-muted: #c8d2cc;
  --measure: 72rem;
  --text-measure: 46rem;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 18rem;
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.6;
}

a {
  color: inherit;
  text-underline-offset: 0.2em;
  text-decoration-thickness: 0.08em;
}

a:hover {
  text-decoration-color: var(--accent);
}

button,
input {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 0.2rem solid #ee8b2d;
  outline-offset: 0.2rem;
}

::selection {
  color: #fff;
  background: var(--accent);
}

.shell {
  width: min(calc(100% - 2rem), var(--measure));
  margin-inline: auto;
}

.narrow {
  max-width: 58rem;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.65rem 0.85rem;
  translate: 0 -200%;
  background: var(--paper-strong);
  border: 1px solid var(--ink);
  font-weight: 700;
}

.skip-link:focus {
  translate: 0;
}

.site-header {
  position: sticky;
  z-index: 50;
  top: 0;
  border-bottom: 1px solid color-mix(in srgb, var(--line), transparent 15%);
  background: color-mix(in srgb, var(--paper), transparent 6%);
  backdrop-filter: blur(0.8rem);
}

.header-inner {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  min-height: 4.75rem;
  gap: 1.25rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  line-height: 1.05;
}

.brand-mark {
  display: grid;
  width: 2.25rem;
  height: 2.25rem;
  place-items: center;
  border-radius: 0.35rem 0.35rem 0.85rem 0.35rem;
  color: #fff;
  background: var(--accent);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-weight: 800;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  letter-spacing: -0.02em;
}

.brand small {
  margin-top: 0.2rem;
  color: var(--muted);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.primary-nav {
  display: flex;
  justify-content: center;
  gap: 1.15rem;
  min-width: 0;
}

.primary-nav a,
.language-link {
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 650;
  text-decoration: none;
}

.primary-nav a:hover,
.language-link:hover {
  color: var(--accent-strong);
}

.language-link {
  padding: 0.42rem 0.65rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  white-space: nowrap;
}

.hero {
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(circle at 85% 15%, color-mix(in srgb, var(--accent-soft), transparent 10%) 0, transparent 35%),
    linear-gradient(120deg, var(--paper-strong), var(--paper));
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(18rem, 0.9fr);
  align-items: end;
  gap: clamp(2rem, 6vw, 6rem);
  min-height: 35rem;
  padding-block: clamp(5rem, 10vw, 9rem);
}

.hero h1,
.page-hero h1 {
  max-width: 12ch;
  margin: 0;
  overflow-wrap: anywhere;
  font-size: clamp(3.5rem, 6.5vw, 5rem);
  line-height: 0.9;
  letter-spacing: -0.075em;
}

.hero-copy {
  max-width: 36rem;
  padding-bottom: 0.4rem;
  font-size: clamp(1.05rem, 2vw, 1.35rem);
}

.hero-copy p:first-child {
  font-size: 1.18em;
  font-weight: 650;
  letter-spacing: -0.02em;
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--accent-strong);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.section-block {
  padding-block: clamp(4rem, 9vw, 7.5rem);
}

.section-heading {
  display: grid;
  grid-template-columns: 0.7fr 1.3fr;
  gap: 2rem;
  align-items: start;
  margin-bottom: 3rem;
}

.section-heading h2 {
  max-width: 20ch;
  margin: 0;
  font-size: clamp(2rem, 5vw, 4.1rem);
  line-height: 1;
  letter-spacing: -0.055em;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.card {
  min-height: 14rem;
  padding: clamp(1.4rem, 4vw, 2.3rem);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  transition: background-color 140ms ease, translate 140ms ease;
}

.card:hover {
  background: var(--paper-strong);
}

.card span {
  color: var(--accent);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 0.8rem;
  font-weight: 800;
}

.card h3 {
  margin: 2.4rem 0 0.5rem;
  font-size: 1.6rem;
  line-height: 1.15;
  letter-spacing: -0.035em;
}

.card p {
  max-width: 34rem;
  margin: 0;
  color: var(--muted);
}

.principle-band {
  background: var(--night);
  color: #f4f6f4;
}

.principle-grid {
  display: grid;
  grid-template-columns: 0.55fr 1.45fr;
  gap: 2rem;
  padding-block: clamp(4rem, 9vw, 8rem);
}

.principle-grid .eyebrow {
  color: #84d7b2;
}

.principle-grid > p:last-child {
  max-width: 31ch;
  margin: 0;
  font-size: clamp(1.8rem, 4vw, 3.5rem);
  font-weight: 650;
  line-height: 1.08;
  letter-spacing: -0.045em;
}

.page-hero {
  border-bottom: 1px solid var(--line);
  background: linear-gradient(135deg, var(--paper-strong), var(--paper));
}

.page-hero .narrow {
  padding-block: clamp(4rem, 9vw, 7.5rem);
}

.page-hero h1 {
  max-width: 100%;
  font-size: clamp(3rem, 7vw, 5.5rem);
}

.breadcrumb {
  margin: 0 0 2rem;
  color: var(--muted);
  font-size: 0.86rem;
}

.lede {
  max-width: 44rem;
  margin: 1.7rem 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  line-height: 1.55;
}

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1.75rem;
  margin: 2rem 0 0;
}

.meta-row div {
  display: grid;
  gap: 0.2rem;
}

.meta-row dt {
  color: var(--muted);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.meta-row dd {
  margin: 0;
  font-weight: 700;
}

.content-layout {
  display: grid;
  grid-template-columns: minmax(0, var(--text-measure)) minmax(16rem, 1fr);
  align-items: start;
  gap: clamp(3rem, 8vw, 7rem);
  padding-block: clamp(3.5rem, 8vw, 7rem);
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(10rem, 14rem) minmax(0, var(--text-measure));
  justify-content: center;
  align-items: start;
  gap: clamp(2.5rem, 7vw, 6rem);
  padding-block: clamp(3.5rem, 8vw, 7rem);
}

.article-layout-single {
  grid-template-columns: minmax(0, var(--text-measure));
}

.prose {
  min-width: 0;
  color: var(--ink);
}

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

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

.prose h2,
.prose h3,
.prose h4 {
  line-height: 1.15;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

.prose h2 {
  margin: 3.25rem 0 1rem;
  padding-top: 0.5rem;
  font-size: clamp(1.7rem, 4vw, 2.5rem);
}

.prose h3 {
  margin: 2.4rem 0 0.75rem;
  font-size: 1.35rem;
}

.prose p,
.prose li {
  color: color-mix(in srgb, var(--ink), var(--muted) 24%);
}

.prose p {
  margin-block: 1rem;
}

.prose ul,
.prose ol {
  padding-left: 1.3rem;
}

.prose li + li {
  margin-top: 0.55rem;
}

.prose strong {
  color: var(--ink);
}

.prose blockquote {
  margin: 2rem 0;
  padding: 1rem 1.25rem;
  border-left: 0.3rem solid var(--accent);
  background: var(--accent-soft);
}

.prose blockquote p {
  margin: 0;
  color: var(--ink);
}

.prose table {
  display: block;
  width: 100%;
  margin: 1.5rem 0;
  overflow-x: auto;
  border-collapse: collapse;
  font-size: 0.93rem;
}

.prose th,
.prose td {
  min-width: 9rem;
  padding: 0.75rem;
  border: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.prose th {
  background: color-mix(in srgb, var(--accent-soft), transparent 30%);
}

.prose code {
  padding: 0.12em 0.3em;
  border-radius: 0.2rem;
  background: color-mix(in srgb, var(--line), transparent 55%);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 0.9em;
}

.prose pre {
  position: relative;
  max-width: 100%;
  margin: 1.5rem 0;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 0.45rem;
  background: var(--paper-strong) !important;
}

.prose pre code {
  display: block;
  min-width: max-content;
  padding: 1.1rem;
  background: transparent;
}

.copy-code {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  padding: 0.3rem 0.55rem;
  border: 1px solid var(--line);
  border-radius: 0.25rem;
  color: var(--ink);
  background: var(--paper);
  cursor: pointer;
  font-size: 0.72rem;
  font-weight: 700;
}

.related,
.toc {
  position: sticky;
  top: 6.5rem;
}

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

.related-list a {
  display: grid;
  gap: 0.35rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
}

.related-list a:hover strong {
  color: var(--accent-strong);
}

.related-list span {
  color: var(--muted);
  font-size: 0.9rem;
}

.toc ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

.toc li + li {
  margin-top: 0.65rem;
}

.toc a {
  color: var(--muted);
  font-size: 0.9rem;
  text-decoration: none;
}

.toc a:hover {
  color: var(--accent-strong);
}

.search-shell {
  min-height: 28rem;
  padding-block: clamp(3.5rem, 8vw, 6rem);
}

.search-form {
  max-width: 54rem;
}

.search-form label {
  display: block;
  margin-bottom: 0.55rem;
  font-weight: 750;
}

.search-form > div {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
}

.search-form input,
.search-form button {
  min-height: 3.4rem;
  border: 1px solid var(--ink);
}

.search-form input {
  min-width: 0;
  padding: 0 1rem;
  color: var(--ink);
  background: var(--paper-strong);
}

.search-form button {
  padding: 0 1.4rem;
  color: #fff;
  background: var(--accent-strong);
  cursor: pointer;
  font-weight: 750;
}

.search-status {
  margin-block: 1.5rem;
  color: var(--muted);
}

.search-results {
  max-width: 54rem;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.search-results li {
  padding: 1.3rem 0;
  border-bottom: 1px solid var(--line);
}

.search-results a {
  font-size: 1.2rem;
  font-weight: 750;
}

.search-results p {
  margin: 0.35rem 0 0;
  color: var(--muted);
}

.site-footer {
  border-top: 1px solid #27312c;
  color: var(--night-muted);
  background: var(--night);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 2.5rem;
  padding-block: 3.5rem;
}

.footer-grid p {
  max-width: 23rem;
  margin: 0.45rem 0 0;
  font-size: 0.9rem;
}

.footer-heading {
  color: #fff;
  font-weight: 750;
}

.site-footer a {
  color: #fff;
}

@media (max-width: 62rem) {
  .header-inner {
    grid-template-columns: auto auto;
    padding-block: 0.65rem;
  }

  .primary-nav {
    grid-column: 1 / -1;
    grid-row: 2;
    justify-content: flex-start;
    overflow-x: auto;
    padding: 0.3rem 0 0.35rem;
    scrollbar-width: thin;
  }

  .language-link {
    grid-column: 2;
    grid-row: 1;
    justify-self: end;
  }

  .content-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .related {
    position: static;
    max-width: var(--text-measure);
  }
}

@media (max-width: 46rem) {
  .hero-grid,
  .section-heading,
  .principle-grid,
  .article-layout,
  .footer-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-grid {
    min-height: auto;
    padding-block: 5rem;
  }

  .hero h1,
  .page-hero h1 {
    font-size: clamp(2.5rem, 11vw, 3.6rem);
  }

  .primary-nav {
    flex-wrap: wrap;
    gap: 0.65rem 1rem;
    overflow-x: visible;
  }

  .card-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .card {
    min-height: 12rem;
  }

  .toc {
    position: static;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--line);
  }

  .search-form > div {
    grid-template-columns: minmax(0, 1fr);
  }

  .search-form button {
    border-top: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #111815;
    --paper-strong: #17211d;
    --ink: #edf3ef;
    --muted: #aab8b0;
    --line: #34433b;
    --accent: #70d4a5;
    --accent-strong: #91e5bd;
    --accent-soft: #203c30;
  }

  .hero,
  .page-hero {
    background: linear-gradient(135deg, #17211d, #111815);
  }

  .prose pre {
    filter: invert(0.88) hue-rotate(165deg);
  }

  .prose pre .copy-code {
    filter: invert(1) hue-rotate(195deg);
  }
}