@font-face {
  font-family: "Barlow Condensed";
  src: url("/fonts/barlow-condensed-v13-latin-regular.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Barlow Semi Condensed";
  src: url("/fonts/barlow-semi-condensed-v16-latin-regular.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Barlow Semi Condensed";
  src: url("/fonts/BarlowSemiCondensed-Bold.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Barlow Semi Condensed";
  src: url("/fonts/BarlowSemiCondensed-Italic.woff2") format("woff2");
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}

@font-face {
  font-family: "Iosevka Term";
  src: url("/fonts/IosevkaTerm-Latin.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

:root {
  color-scheme: only light;
  --paper: #f3edf5;
  --paper-raised: #fcf8fb;
  --paper-soft: #e8deed;
  --ink: #22233b;
  --ink-soft: #41435f;
  --muted: #696a86;
  --line: #d4c4d6;
  --line-strong: #aa98b6;
  --rust: #b76e79;
  --rust-dark: #7f4552;
  --lavender: #75659d;
  --teal: #4a6fa5;
  --teal-soft: #dfe8f5;
  --code: #fbf8fc;
  --code-2: #ece4f0;
  --code-text: #383650;
  --code-muted: #817b8b;
  --shadow: 0 18px 45px rgba(59, 43, 75, 0.11);
  --radius: 7px;
  --content: 1180px;
  --measure: 730px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 7rem;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  background:
    linear-gradient(rgba(255, 255, 255, 0.24), rgba(255, 255, 255, 0.24)),
    var(--paper);
  color: var(--ink);
  font-family: "Barlow Semi Condensed", sans-serif;
  font-size: 1.125rem;
  line-height: 1.62;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: var(--teal);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.16em;
}

a:hover {
  color: var(--rust-dark);
}

button,
input,
textarea,
select {
  font: inherit;
}

code,
pre {
  font-family: "Iosevka Term", ui-monospace, monospace;
}

code:not(pre code) {
  padding: 0.08em 0.3em;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.55);
  font-size: 0.88em;
  white-space: nowrap;
}

::selection {
  background: #dfb5c0;
  color: var(--ink);
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.65rem 0.9rem;
  border-radius: 4px;
  background: var(--ink);
  color: #fff;
  transform: translateY(-180%);
}

.skip-link:focus {
  transform: translateY(0);
}

.shell {
  width: min(calc(100% - 3rem), var(--content));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  border-bottom: 1px solid rgba(170, 152, 182, 0.82);
  background: rgba(243, 237, 245, 0.94);
  backdrop-filter: blur(14px);
}

.header-inner {
  display: flex;
  min-height: 72px;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

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

.brand-image,
.hero-brand {
  display: block;
}

.brand-image {
  width: clamp(7.25rem, 15vw, 8.5rem);
}

.hero-brand {
  width: min(100%, 24rem);
  max-width: none;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.site-nav a {
  min-height: 40px;
  padding: 0.45rem 0.85rem;
  border-radius: 5px;
  color: var(--muted);
  font-size: 0.98rem;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  background: rgba(255, 255, 255, 0.58);
  color: var(--ink);
}

.site-nav a[aria-current="page"] {
  box-shadow: inset 0 0 0 1px var(--line);
}

main {
  min-height: calc(100vh - 160px);
}

.hero {
  padding: clamp(5.5rem, 11vw, 9.5rem) 0 clamp(4.5rem, 9vw, 7.5rem);
  border-bottom: 1px solid var(--line);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(360px, 1.08fr);
  align-items: center;
  gap: clamp(3rem, 7vw, 6.5rem);
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--rust);
  font-family: "Iosevka Term", ui-monospace, monospace;
  font-size: 0.76rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  color: var(--ink);
  font-family: "Barlow Condensed", sans-serif;
  font-weight: 400;
  line-height: 0.98;
  text-wrap: balance;
}

h1 {
  max-width: 11ch;
  font-size: clamp(4.3rem, 10vw, 7.75rem);
  letter-spacing: -0.025em;
}

.hero-claim {
  max-width: 14ch;
  margin: 1.25rem 0 0;
  color: var(--ink);
  font-family: "Barlow Condensed", sans-serif;
  font-size: clamp(2.6rem, 5vw, 4.15rem);
  line-height: 0.98;
  text-wrap: balance;
}

h2 {
  font-size: clamp(2.7rem, 5.7vw, 4.45rem);
  letter-spacing: -0.018em;
}

h3 {
  font-size: 1.75rem;
  line-height: 1.08;
}

h4 {
  font-size: 1.35rem;
  line-height: 1.15;
}

.lede {
  max-width: 38rem;
  margin: 1.5rem 0 0;
  color: var(--ink-soft);
  font-size: clamp(1.32rem, 2.2vw, 1.65rem);
  line-height: 1.42;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 0.6rem 1rem;
  border: 1px solid var(--ink);
  border-radius: 5px;
  background: var(--ink);
  color: #fff;
  font-weight: 700;
  text-decoration: none;
}

.button:hover {
  background: var(--rust-dark);
  color: #fff;
}

.button-secondary {
  border-color: var(--line-strong);
  background: transparent;
  color: var(--ink);
}

.button-secondary:hover {
  border-color: var(--ink);
  background: rgba(255, 255, 255, 0.55);
  color: var(--ink);
}

.code-window {
  container-type: inline-size;
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--code);
  box-shadow: 0 14px 36px rgba(59, 43, 75, 0.08);
  color: var(--code-text);
}

.code-window-bar {
  display: flex;
  min-height: 42px;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.65rem 1rem;
  border-bottom: 1px solid var(--line);
  background: var(--code-2);
  color: var(--code-muted);
  font-family: "Iosevka Term", ui-monospace, monospace;
  font-size: 0.76rem;
}

.code-window-bar span:last-child {
  color: var(--rust);
}

.code-window pre {
  --code-padding-block: clamp(1.1rem, 3vw, 1.65rem);

  max-width: 100%;
  max-height: calc(20lh + var(--code-padding-block) + var(--code-padding-block));
  margin: 0;
  overflow-x: auto;
  overflow-y: auto;
  padding: var(--code-padding-block);
  font-size: min(0.9rem, calc(4cqi - 0.132rem));
  line-height: 1.65;
  tab-size: 4;
}

.code-window code {
  display: block;
  min-width: max-content;
  color: var(--code-text);
  font-size: inherit;
  line-height: inherit;
  white-space: pre;
}

.section {
  padding: clamp(4.5rem, 9vw, 7.5rem) 0;
  border-bottom: 1px solid var(--line);
}

.section-plain {
  background: rgba(255, 255, 255, 0.34);
}

.section-head {
  max-width: 760px;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.section-head p:last-child {
  max-width: 43rem;
  margin: 1.25rem 0 0;
  color: var(--muted);
  font-size: 1.22rem;
}

.surface-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
}

.surface {
  min-width: 0;
  padding: 1.7rem 1.25rem 1.9rem;
  border-left: 1px solid var(--line);
}

.surface:first-child {
  border-left: 0;
}

.surface code {
  display: block;
  margin-bottom: 1.2rem;
  border: 0;
  background: transparent;
  color: var(--rust);
  font-size: 1.5rem;
}

.surface h3 {
  margin-bottom: 0.65rem;
}

.surface p {
  margin: 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.5;
}

.principles {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.principle {
  min-width: 0;
  padding: clamp(1.5rem, 3vw, 2.25rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper-raised);
}

.principle-index {
  display: block;
  margin-bottom: 3.5rem;
  color: var(--rust);
  font-family: "Iosevka Term", ui-monospace, monospace;
  font-size: 0.8rem;
}

.principle p {
  margin: 0.9rem 0 0;
  color: var(--muted);
}

.path-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.path-card {
  display: flex;
  min-height: 250px;
  flex-direction: column;
  justify-content: space-between;
  padding: clamp(1.6rem, 4vw, 2.5rem);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--paper-raised);
  color: var(--ink);
  text-decoration: none;
}

.path-card:hover {
  border-color: var(--teal);
  color: var(--ink);
  box-shadow: var(--shadow);
}

.path-card small {
  color: var(--rust);
  font-family: "Iosevka Term", ui-monospace, monospace;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.path-card p {
  max-width: 30rem;
  margin: 1rem 0 2rem;
  color: var(--muted);
}

.path-card strong {
  color: var(--teal);
}

.page-hero {
  padding: clamp(4.7rem, 9vw, 7.5rem) 0 clamp(3.7rem, 7vw, 5.5rem);
  border-bottom: 1px solid var(--line);
}

.page-hero h1 {
  max-width: 12ch;
  font-size: clamp(4rem, 8.5vw, 7rem);
}

.page-hero .lede {
  max-width: 50rem;
}

.document-meta {
  margin: 1.4rem 0 0;
  color: var(--muted);
  font-family: "Iosevka Term", ui-monospace, monospace;
  font-size: 0.8rem;
}

.doc-layout {
  display: grid;
  grid-template-columns: 220px minmax(0, var(--measure));
  justify-content: center;
  gap: clamp(3rem, 8vw, 7rem);
  padding: clamp(4rem, 8vw, 7rem) 0;
}

.toc {
  align-self: start;
  position: sticky;
  top: 104px;
  padding-top: 0.3rem;
}

.toc strong {
  display: block;
  margin-bottom: 0.85rem;
  color: var(--ink);
  font-size: 1rem;
}

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

.toc li + li {
  margin-top: 0.45rem;
}

.toc a {
  display: grid;
  grid-template-columns: 2.3rem 1fr;
  padding: 0.28rem 0;
  color: var(--muted);
  font-size: 0.95rem;
  text-decoration: none;
}

.toc-index {
  color: var(--rust);
  font-family: "Iosevka Term", ui-monospace, monospace;
  font-size: 0.8rem;
}

.toc a:hover {
  color: var(--rust-dark);
}

.article {
  min-width: 0;
}

.rite-layout {
  max-width: 930px;
  padding-block: clamp(4rem, 8vw, 7rem);
}

.rite-document > p:first-child {
  color: var(--ink-soft);
  font-size: 1.35rem;
  line-height: 1.48;
}

.rite-toc {
  margin: 3.5rem 0 5rem;
  padding: 1.6rem 0;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
}

.rite-toc h2 {
  margin: 0 0 1.25rem;
  font-size: 2rem;
}

.rite-toc > ol {
  columns: 2;
  column-gap: 3rem;
  margin: 0;
  padding: 0;
}

.rite-toc li {
  break-inside: avoid;
  padding-left: 0;
}

.rite-toc li + li {
  margin-top: 0.35rem;
}

.rite-toc ol ol {
  margin: 0.35rem 0 1rem;
  padding-left: 1rem;
}

.rite-toc a {
  color: var(--muted);
  font-size: 0.94rem;
  text-decoration: none;
}

.rite-toc a:hover {
  color: var(--rust-dark);
}

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

.article h2 {
  margin: 5rem 0 1.35rem;
  font-size: clamp(2.65rem, 5vw, 3.65rem);
}

.section-heading {
  display: grid;
  grid-template-columns: 2rem minmax(0, 1fr);
  align-items: baseline;
  gap: 0.8rem;
  margin: 5rem 0 1.35rem;
}

.article > section:first-child .section-heading {
  margin-top: 0;
}

.section-heading .eyebrow,
.article .section-heading h2 {
  margin: 0;
}

.article h3 {
  margin: 3.25rem 0 1rem;
}

.article p {
  margin: 0 0 1.35rem;
}

.article ul,
.article ol {
  margin: 0 0 1.7rem;
  padding-left: 1.35rem;
}

.article li {
  padding-left: 0.25rem;
}

.article li + li {
  margin-top: 0.45rem;
}

.article .code-window {
  width: 100%;
  max-width: 100%;
  margin: 2rem 0 2.35rem;
}

.article blockquote,
.callout {
  margin: 2.2rem 0;
  padding: 1.25rem 1.4rem;
  border: 1px solid var(--line);
  border-left: 4px solid var(--rust);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: var(--paper-raised);
}

.article blockquote p:last-child,
.callout p:last-child {
  margin-bottom: 0;
}

.callout-label {
  display: block;
  margin-bottom: 0.55rem;
  color: var(--rust);
  font-family: "Iosevka Term", ui-monospace, monospace;
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.requirements {
  margin: 2.2rem 0;
  padding: 0;
  border-top: 1px solid var(--line-strong);
  list-style: none;
}

.requirements li {
  display: grid;
  grid-template-columns: 2rem 1fr;
  gap: 1rem;
  margin: 0;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
}

.requirements span {
  color: var(--rust);
  font-family: "Iosevka Term", ui-monospace, monospace;
  font-size: 0.8rem;
}

.exhibit {
  width: 100%;
  margin: 2rem 0;
  border-collapse: collapse;
  font-size: 1rem;
}

.exhibit th,
.exhibit td {
  padding: 0.85rem 0.75rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.exhibit th {
  color: var(--muted);
  font-size: 0.82rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.table-scroll {
  width: 100%;
  margin: 2rem 0;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper-raised);
}

.rite-table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  font-size: 0.98rem;
}

.rite-table td {
  padding: 0.8rem 0.85rem;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.rite-table td:last-child {
  border-right: 0;
}

.rite-table tr:last-child td {
  border-bottom: 0;
}

.rite-table tr:first-child td {
  background: var(--paper-soft);
  color: var(--ink-soft);
  font-size: 0.84rem;
  letter-spacing: 0.035em;
}

.rite-document pre {
  --code-padding-block: 1rem;

  container-type: inline-size;
  max-width: 100%;
  max-height: calc(20lh + var(--code-padding-block) + var(--code-padding-block));
  margin: 2rem 0;
  overflow-x: auto;
  overflow-y: auto;
  padding: 1rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--code);
  font-size: min(0.9rem, calc(4cqi - 0.132rem));
  line-height: 1.65;
}

.rite-document pre code {
  display: block;
  min-width: max-content;
  font-size: inherit;
  line-height: inherit;
  white-space: pre;
}

.model-flow {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: stretch;
  gap: 0.65rem;
  margin: 3rem 0;
}

.flow-node {
  min-width: 0;
  padding: 1.25rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper-raised);
}

.flow-node small {
  display: block;
  margin-bottom: 0.7rem;
  color: var(--rust);
  font-family: "Iosevka Term", ui-monospace, monospace;
  font-size: 0.72rem;
  text-transform: uppercase;
}

.flow-node strong {
  display: block;
  font-size: 1.12rem;
}

.flow-node span {
  display: block;
  margin-top: 0.45rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.flow-arrow {
  align-self: center;
  color: var(--teal);
  font-family: "Iosevka Term", ui-monospace, monospace;
}

.site-footer {
  padding: 2.3rem 0 3rem;
  color: var(--muted);
  font-size: 0.96rem;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem 2rem;
}

.footer-inner p {
  margin: 0;
}

@media (max-width: 980px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }

  .hero-grid .code-window {
    max-width: 760px;
  }

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

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

  .surface:nth-child(odd) {
    border-left: 0;
  }

  .surface:first-child,
  .surface:nth-child(2) {
    border-top: 0;
  }

  .surface:last-child {
    grid-column: span 2;
  }
}

@media (max-width: 820px) {
  .principles {
    grid-template-columns: 1fr;
  }

  .principle-index {
    margin-bottom: 1.5rem;
  }

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

  .toc {
    position: static;
    padding: 1.15rem 1.25rem;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--paper-raised);
  }

  .toc ol {
    columns: 2;
    column-gap: 2rem;
  }

  .model-flow {
    grid-template-columns: 1fr;
  }

  .flow-arrow {
    justify-self: center;
    transform: rotate(90deg);
  }

  .rite-toc > ol {
    columns: 1;
  }
}

@media (max-width: 620px) {
  body {
    font-size: 1.06rem;
  }

  .shell {
    width: min(calc(100% - 2rem), var(--content));
  }

  .header-inner {
    min-height: 64px;
    gap: 1rem;
  }

  .site-nav {
    gap: 0;
  }

  .site-nav a {
    min-height: 38px;
    padding-inline: 0.58rem;
    font-size: 0.9rem;
  }

  .hero {
    padding-top: 4.5rem;
  }

  h1,
  .page-hero h1 {
    font-size: clamp(3.8rem, 20vw, 5rem);
  }

  .hero-claim {
    font-size: clamp(2.65rem, 13vw, 3.7rem);
  }

  .lede {
    font-size: 1.25rem;
  }

  .surface-grid,
  .path-grid {
    grid-template-columns: 1fr;
  }

  .surface {
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .surface:nth-child(2) {
    border-top: 1px solid var(--line);
  }

  .surface:last-child {
    grid-column: auto;
  }

  .path-card {
    min-height: 220px;
  }

  .toc ol {
    columns: 1;
  }

  .article .code-window {
    width: calc(100vw - 2rem);
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }
}

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

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}