:root {
  --paper: #f2efe8;
  --paper-deep: #e8e3d9;
  --paper-light: #faf8f3;
  --ink: #171714;
  --ink-soft: #56564f;
  --ink-faint: #7d7c73;
  --rule: #cbc6bb;
  --rule-dark: #aba69c;
  --accent: #c84e32;
  --accent-dark: #883421;
  --accent-wash: #ead7cd;
  --chart-secondary: #386f74;
  --sans: "Helvetica Neue", "Inter", "Segoe UI", Helvetica, Arial, sans-serif;
  --serif: Georgia, "Times New Roman", Times, serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --article: 690px;
  --wide: 1000px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.68;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration-color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

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

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

button:focus-visible,
a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

code {
  border-radius: 3px;
  background: rgba(23, 23, 20, 0.07);
  padding: 0.12em 0.3em;
  font-family: var(--mono);
  font-size: 0.82em;
}

.reading-progress {
  position: fixed;
  z-index: 100;
  top: 0;
  right: 0;
  left: 0;
  height: 3px;
  pointer-events: none;
}

.reading-progress span {
  display: block;
  width: 0;
  height: 100%;
  background: var(--accent);
}

.skip-link {
  position: fixed;
  z-index: 200;
  top: 10px;
  left: 10px;
  translate: 0 -160%;
  border-radius: 2px;
  background: var(--ink);
  color: white;
  padding: 9px 14px;
  font: 700 13px/1 var(--sans);
  transition: translate 160ms ease;
}

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

.site-header {
  display: flex;
  min-height: 82px;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--rule);
  padding: 0 5vw;
  font-family: var(--sans);
}

.site-mark {
  display: flex;
  align-items: center;
  gap: 13px;
  text-decoration: none;
}

.mark-glyph {
  display: inline-grid;
  width: 38px;
  height: 38px;
  place-items: center;
  background: var(--ink);
  color: var(--paper);
  font: 800 12px/1 var(--sans);
  letter-spacing: -0.03em;
}

.mark-label {
  color: var(--ink-soft);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.mark-label i {
  color: var(--accent);
  font-style: normal;
  margin: 0 5px;
}

.top-links {
  display: flex;
  align-items: center;
  gap: clamp(15px, 2.5vw, 36px);
  font-size: 13px;
  font-weight: 600;
}

.top-links a {
  text-decoration: none;
}

.top-links .top-cta {
  border-radius: 2px;
  background: var(--ink);
  color: var(--paper-light);
  padding: 10px 15px;
}

.top-links .top-cta:hover {
  background: var(--accent-dark);
  color: white;
}

.hero {
  min-height: calc(100vh - 82px);
  border-bottom: 1px solid var(--rule);
  padding: clamp(42px, 6vw, 88px) 5vw 42px;
}

.hero-kicker {
  display: flex;
  max-width: 1350px;
  justify-content: space-between;
  margin: 0 auto;
  color: var(--ink-soft);
  font: 700 11px/1.2 var(--sans);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 1270px;
  margin: clamp(60px, 11vh, 122px) auto 0;
  font: 700 clamp(3.6rem, 8.5vw, 8.6rem)/0.89 var(--sans);
  letter-spacing: -0.073em;
}

.hero h1 em {
  color: var(--accent);
  font-family: var(--serif);
  font-size: 0.86em;
  font-weight: 400;
  letter-spacing: -0.055em;
}

.hero-deck {
  max-width: 790px;
  margin: clamp(46px, 7vw, 82px) 8vw 0 auto;
  color: #31312d;
  font-size: clamp(1.2rem, 2vw, 1.75rem);
  line-height: 1.38;
}

.hero-metrics {
  display: grid;
  max-width: 1350px;
  margin: clamp(62px, 8vw, 100px) auto 0;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  grid-template-columns: repeat(4, 1fr);
}

.hero-metrics div {
  padding: 19px 24px 24px;
}

.hero-metrics div + div {
  border-left: 1px solid var(--rule-dark);
}

.hero-metrics dt {
  margin-bottom: 14px;
  color: var(--ink-soft);
  font: 700 10px/1 var(--sans);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero-metrics dd {
  margin: 0;
  font: 600 clamp(2rem, 4vw, 4.2rem)/1 var(--sans);
  letter-spacing: -0.06em;
}

.hero-footer {
  display: flex;
  max-width: 1350px;
  justify-content: space-between;
  margin: 22px auto 0;
  color: var(--ink-soft);
  font: 12px/1.5 var(--sans);
}

.hero-footer p {
  margin: 0;
}

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

.article-layout {
  display: grid;
  max-width: 1440px;
  margin: 0 auto;
  grid-template-columns: minmax(180px, 260px) minmax(0, 1fr);
}

.section-rail {
  position: sticky;
  top: 0;
  height: 100vh;
  align-self: start;
  border-right: 1px solid var(--rule);
  padding: 76px 28px 36px;
  font-family: var(--sans);
}

.section-rail > p {
  margin: 0 0 22px;
  color: var(--ink-faint);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.section-rail nav {
  display: grid;
}

.section-rail a {
  display: grid;
  align-items: center;
  border-top: 1px solid var(--rule);
  color: var(--ink-faint);
  font-size: 12px;
  gap: 10px;
  grid-template-columns: 21px 1fr;
  padding: 10px 0;
  text-decoration: none;
  transition: color 160ms ease, padding-left 160ms ease;
}

.section-rail a:last-child {
  border-bottom: 1px solid var(--rule);
}

.section-rail a span {
  font: 10px/1 var(--mono);
}

.section-rail a:hover,
.section-rail a.is-active {
  color: var(--ink);
  padding-left: 5px;
}

.section-rail a.is-active span {
  color: var(--accent);
}

.model-card {
  min-width: 0;
  padding: 0 clamp(28px, 6vw, 92px);
}

.article-section {
  max-width: var(--article);
  margin: 0 auto;
  border-bottom: 1px solid var(--rule-dark);
  padding: clamp(80px, 10vw, 140px) 0;
}

.article-section:last-child {
  border-bottom: 0;
}

.article-section p {
  margin: 0 0 1.35em;
}

.article-section strong {
  font-weight: 700;
}

.intro-section {
  padding-top: 78px;
}

.byline {
  color: var(--ink-soft);
  font-style: italic;
}

.lead {
  margin-top: 30px !important;
  color: #252521;
  font-size: clamp(1.38rem, 2.1vw, 1.82rem);
  line-height: 1.42;
}

.section-heading {
  margin-bottom: 52px;
}

.section-heading > p {
  margin-bottom: 20px;
  color: var(--accent-dark);
  font: 700 11px/1 var(--sans);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.section-heading h2 {
  margin: 0;
  font: 650 clamp(2.5rem, 5vw, 4.8rem)/0.99 var(--sans);
  letter-spacing: -0.058em;
}

.article-section h3 {
  font-family: var(--sans);
}

.notice {
  display: grid;
  margin: 56px 0;
  gap: 32px;
  grid-template-columns: 100px 1fr;
  padding: 30px;
}

.notice-dark {
  background: var(--ink);
  color: var(--paper-light);
}

.notice-index {
  color: #c2bcb1;
  font: 700 10px/1 var(--sans);
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.notice h2 {
  margin: 0 0 12px;
  font: 600 1.35rem/1.2 var(--sans);
  letter-spacing: -0.03em;
}

.notice p {
  margin: 0;
  color: #d7d2c9;
  font-size: 15px;
  line-height: 1.55;
}

.wide-figure {
  width: min(var(--wide), calc(100vw - 340px));
  margin: 72px 50% 72px;
  translate: -50% 0;
}

.article-section > .wide-figure:last-child {
  margin-bottom: 0;
}

.wide-figure figcaption {
  display: flex;
  justify-content: space-between;
  border-top: 1px solid var(--ink);
  padding: 11px 0 13px;
  font: 700 10px/1.3 var(--sans);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.wide-figure figcaption span:last-child {
  color: var(--ink-faint);
  font-weight: 500;
}

.figure-note {
  max-width: 750px;
  margin: 18px 0 0 !important;
  color: var(--ink-soft);
  font: 12px/1.55 var(--sans);
}

.run-signature {
  background: var(--paper-light);
  padding: 0 24px 24px;
}

.signature-grid {
  display: grid;
  border-top: 1px solid var(--rule);
  border-left: 1px solid var(--rule);
  grid-template-columns: repeat(3, 1fr);
}

.signature-grid > div {
  min-height: 150px;
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  padding: 20px;
}

.signature-grid small,
.signature-grid span {
  display: block;
  color: var(--ink-faint);
  font: 10px/1.3 var(--sans);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.signature-grid strong {
  display: block;
  margin: 25px 0 8px;
  font: 600 clamp(1.65rem, 3vw, 2.8rem)/1 var(--sans);
  letter-spacing: -0.05em;
}

.architecture-figure,
.parameter-figure,
.pipeline-figure,
.chart-figure,
.benchmark-figure,
.recovery-figure,
.checkpoint-figure {
  border-bottom: 1px solid var(--rule-dark);
  padding-bottom: 24px;
}

.architecture-flow {
  display: flex;
  align-items: stretch;
  justify-content: center;
  gap: 12px;
  padding: 42px 28px;
  background: var(--paper-light);
}

.flow-node,
.transformer-stack {
  display: flex;
  min-width: 140px;
  min-height: 150px;
  flex-direction: column;
  justify-content: space-between;
  border: 1px solid var(--rule-dark);
  background: var(--paper);
  padding: 16px;
}

.flow-node small,
.flow-node span,
.transformer-stack > p {
  margin: 0;
  color: var(--ink-faint);
  font: 9px/1.3 var(--sans);
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.flow-node strong {
  font: 650 17px/1.08 var(--sans);
  letter-spacing: -0.03em;
}

.flow-input {
  border-color: var(--ink);
}

.flow-embedding {
  background: var(--accent-wash);
  border-color: #b98b7d;
}

.flow-output {
  background: var(--ink);
  color: var(--paper-light);
}

.flow-output small,
.flow-output span {
  color: #aaa69d;
}

.flow-arrow {
  align-self: center;
  color: var(--ink-faint);
  font: 18px/1 var(--sans);
}

.transformer-stack {
  min-width: 250px;
  border-color: var(--accent);
  background: #efe4db;
}

.transformer-stack > div {
  display: grid;
  gap: 5px;
  grid-template-columns: repeat(6, 1fr);
}

.transformer-stack button {
  width: 30px;
  height: 30px;
  border: 1px solid #c9a393;
  border-radius: 50%;
  background: transparent;
  color: var(--ink-soft);
  cursor: pointer;
  font: 9px/1 var(--mono);
}

.transformer-stack button:hover,
.transformer-stack button.is-selected {
  border-color: var(--accent);
  background: var(--accent);
  color: white;
}

.layer-inspector {
  border: 1px solid var(--rule-dark);
  border-top: 0;
  padding: 24px 28px 28px;
}

.inspector-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 26px;
  font-family: var(--sans);
}

.inspector-title > span {
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
}

.inspector-title b {
  color: var(--accent);
  font-family: var(--mono);
}

.inspector-title small {
  color: var(--ink-faint);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.block-path {
  display: grid;
  align-items: center;
  gap: 8px;
  grid-template-columns: 1fr auto 1.35fr auto 1fr auto 1.35fr auto;
}

.block-path > div {
  min-height: 92px;
  border: 1px solid var(--rule);
  padding: 13px;
}

.block-path > span {
  color: var(--ink-faint);
  font-family: var(--sans);
}

.block-path small,
.block-path strong,
.block-path div > span {
  display: block;
}

.block-path small {
  margin-bottom: 14px;
  color: var(--ink-faint);
  font: 8px/1 var(--sans);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.block-path strong {
  font: 650 13px/1.1 var(--sans);
}

.block-path div > span {
  margin-top: 5px;
  color: var(--ink-faint);
  font: 9px/1.2 var(--sans);
}

.block-path .accent-node {
  border-color: var(--accent);
  background: var(--accent-wash);
}

.layer-inspector > p {
  max-width: 760px;
  margin: 24px 0 0;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.55;
}

.spec-grid {
  display: grid;
  margin: 54px 0;
  border-top: 1px solid var(--rule-dark);
  border-left: 1px solid var(--rule-dark);
  grid-template-columns: repeat(3, 1fr);
}

.spec-grid > div {
  min-height: 135px;
  border-right: 1px solid var(--rule-dark);
  border-bottom: 1px solid var(--rule-dark);
  padding: 17px;
}

.spec-grid span,
.spec-grid small,
.spec-grid strong {
  display: block;
}

.spec-grid span {
  color: var(--ink-faint);
  font: 9px/1 var(--sans);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.spec-grid strong {
  margin: 23px 0 5px;
  font: 600 2.25rem/1 var(--sans);
  letter-spacing: -0.05em;
}

.spec-grid small {
  color: var(--ink-soft);
  font: 10px/1.2 var(--sans);
}

.parameter-bars {
  padding: 30px 0 10px;
}

.parameter-row {
  display: grid;
  align-items: center;
  gap: 28px;
  grid-template-columns: 260px 1fr;
  margin-bottom: 22px;
}

.parameter-row > div:first-child {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-family: var(--sans);
}

.parameter-row strong {
  font-size: 12px;
}

.parameter-row span {
  color: var(--ink-faint);
  font-size: 10px;
  white-space: nowrap;
}

.bar-track {
  height: 14px;
  background: #ded9cf;
}

.bar-track i {
  display: block;
  width: var(--bar);
  min-width: 2px;
  height: 100%;
  background: var(--accent);
}

.parameter-row:nth-child(2) .bar-track i {
  background: var(--chart-secondary);
}

.parameter-row:nth-child(n + 3) .bar-track i {
  background: var(--ink-soft);
}

.pipeline {
  display: grid;
  padding: 0;
  counter-reset: none;
  grid-template-columns: repeat(5, 1fr);
  list-style: none;
}

.pipeline li {
  position: relative;
  min-height: 180px;
  border-top: 1px solid var(--rule-dark);
  border-bottom: 1px solid var(--rule-dark);
  border-left: 1px solid var(--rule-dark);
  padding: 19px 16px;
}

.pipeline li:last-child {
  border-right: 1px solid var(--rule-dark);
  background: var(--ink);
  color: var(--paper-light);
}

.pipeline li:not(:last-child)::after {
  position: absolute;
  z-index: 2;
  top: 50%;
  right: -9px;
  display: grid;
  width: 18px;
  height: 18px;
  place-items: center;
  border-radius: 50%;
  background: var(--accent);
  color: white;
  content: "→";
  font: 10px/1 var(--sans);
  translate: 0 -50%;
}

.pipeline span,
.pipeline strong,
.pipeline small {
  display: block;
}

.pipeline span {
  color: var(--accent);
  font: 10px/1 var(--mono);
}

.pipeline strong {
  margin-top: 55px;
  font: 650 13px/1.2 var(--sans);
}

.pipeline small {
  margin-top: 7px;
  color: var(--ink-faint);
  font: 9px/1.35 var(--sans);
}

.pipeline li:last-child small {
  color: #aaa69d;
}

.two-column-copy {
  display: grid;
  margin: 56px 0;
  gap: 40px;
  grid-template-columns: 1fr 1fr;
}

.two-column-copy h3 {
  margin: 0 0 12px;
  font-size: 16px;
}

.two-column-copy p {
  color: var(--ink-soft);
  font-size: 14px;
}

.evidence-note {
  display: grid;
  border-top: 1px solid var(--accent);
  border-bottom: 1px solid var(--accent);
  gap: 28px;
  grid-template-columns: 110px 1fr;
  padding: 22px 0;
}

.evidence-note span {
  color: var(--accent-dark);
  font: 700 10px/1.3 var(--sans);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.evidence-note p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.55;
}

.evidence-note > div {
  display: grid;
  gap: 10px;
}

.equation-strip {
  display: grid;
  align-items: center;
  margin: 54px 0;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  gap: 13px;
  grid-template-columns: 1fr auto 1fr auto 1fr auto 1.25fr;
  padding: 24px 0;
}

.equation-strip > div {
  text-align: center;
}

.equation-strip span,
.equation-strip small {
  display: block;
}

.equation-strip span {
  font: 600 clamp(1.5rem, 3vw, 2.3rem)/1 var(--sans);
  letter-spacing: -0.05em;
}

.equation-strip small {
  margin-top: 7px;
  color: var(--ink-faint);
  font: 9px/1.2 var(--sans);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.equation-strip > b {
  color: var(--ink-faint);
  font: 400 17px/1 var(--sans);
}

.equation-result {
  color: var(--accent-dark);
}

.recipe-table {
  display: grid;
  border-top: 1px solid var(--rule-dark);
  grid-template-columns: 1fr 1fr;
}

.recipe-table div {
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid var(--rule);
  gap: 15px;
  padding: 12px 0;
  font: 12px/1.4 var(--sans);
}

.recipe-table div:nth-child(odd) {
  padding-right: 28px;
}

.recipe-table div:nth-child(even) {
  border-left: 1px solid var(--rule);
  padding-left: 28px;
}

.recipe-table dt {
  color: var(--ink-soft);
}

.recipe-table dd {
  margin: 0;
  font-weight: 700;
}

.chart {
  position: relative;
  min-height: 360px;
  background: var(--paper-light);
}

.chart svg {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
}

.chart .grid-line {
  stroke: var(--rule);
  stroke-width: 1;
}

.chart .axis-label {
  fill: var(--ink-faint);
  font: 10px var(--sans);
}

.chart .raw-line {
  fill: none;
  opacity: 0.22;
  stroke: var(--ink-soft);
  stroke-width: 1.2;
  vector-effect: non-scaling-stroke;
}

.chart .main-line {
  fill: none;
  stroke: var(--accent);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2.4;
  vector-effect: non-scaling-stroke;
}

.chart[data-chart="validation-loss"] .main-line,
.chart[data-chart="throughput"] .main-line {
  stroke: var(--chart-secondary);
}

.chart .point {
  fill: var(--paper-light);
  stroke: var(--chart-secondary);
  stroke-width: 2;
}

.chart .hover-line {
  opacity: 0;
  stroke: var(--ink-soft);
  stroke-dasharray: 3 3;
  stroke-width: 1;
}

.chart .hover-dot {
  opacity: 0;
  fill: var(--paper-light);
  stroke: var(--accent);
  stroke-width: 2.5;
}

.chart-tooltip {
  position: absolute;
  z-index: 4;
  top: 0;
  left: 0;
  min-width: 128px;
  pointer-events: none;
  background: var(--ink);
  color: white;
  opacity: 0;
  padding: 9px 11px;
  font: 10px/1.45 var(--sans);
  transform: translate(-50%, -110%);
  transition: opacity 100ms ease;
}

.chart-tooltip strong,
.chart-tooltip span {
  display: block;
}

.chart-tooltip span {
  color: #bcb8af;
}

.chart-error {
  display: grid;
  min-height: 360px;
  place-items: center;
  border: 1px solid var(--rule);
  color: var(--ink-soft);
  font: 13px/1.5 var(--sans);
  padding: 30px;
  text-align: center;
}

.benchmark-scale {
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid var(--rule-dark);
  padding: 18px 0 7px 230px;
  color: var(--ink-faint);
  font: 9px/1 var(--sans);
}

.benchmark-bars > div {
  display: grid;
  align-items: center;
  border-bottom: 1px solid var(--rule);
  gap: 26px;
  grid-template-columns: 205px 1fr;
  padding: 18px 0;
}

.benchmark-bars p {
  display: flex;
  justify-content: space-between;
  margin: 0;
  font: 11px/1.2 var(--sans);
}

.benchmark-bars p span {
  color: var(--ink-faint);
  font-family: var(--mono);
}

.benchmark-bars i {
  display: block;
  width: var(--score);
  height: 30px;
  background: var(--ink-faint);
}

.benchmark-bars .is-project i {
  background: var(--accent);
}

.benchmark-bars .is-project p {
  color: var(--accent-dark);
}

.recovery-timeline {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--rule-dark);
  list-style: none;
}

.recovery-timeline li {
  display: grid;
  align-items: start;
  border-bottom: 1px solid var(--rule-dark);
  gap: 24px;
  grid-template-columns: 38px 1fr 1fr;
  padding: 22px 0;
}

.recovery-timeline li > span {
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  border-radius: 50%;
  background: var(--accent);
  color: white;
  font: 9px/1 var(--mono);
}

.recovery-timeline strong {
  font: 650 13px/1.3 var(--sans);
}

.recovery-timeline p {
  margin: 5px 0 0;
  color: var(--ink-soft);
  font-size: 12px;
  line-height: 1.45;
}

.recovery-timeline small {
  color: var(--ink-faint);
  font: 11px/1.5 var(--sans);
}

.checkpoint-core {
  display: grid;
  align-items: center;
  gap: 52px;
  grid-template-columns: 240px 1fr;
  padding: 34px 0;
}

.checkpoint-center {
  display: grid;
  width: 220px;
  height: 220px;
  place-content: center;
  border: 1px solid var(--accent);
  border-radius: 50%;
  background: var(--accent-wash);
  text-align: center;
}

.checkpoint-center span {
  font: 650 18px/1.2 var(--sans);
  letter-spacing: -0.03em;
}

.checkpoint-center small {
  margin-top: 10px;
  color: var(--accent-dark);
  font: 9px/1 var(--mono);
  text-transform: uppercase;
}

.checkpoint-core ul {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--rule-dark);
  list-style: none;
}

.checkpoint-core li {
  display: grid;
  border-bottom: 1px solid var(--rule-dark);
  gap: 20px;
  grid-template-columns: 110px 1fr;
  padding: 11px 0;
  font-family: var(--sans);
}

.checkpoint-core li strong {
  font-size: 11px;
}

.checkpoint-core li span {
  color: var(--ink-soft);
  font-size: 10px;
}

.hash-line {
  display: grid;
  border-top: 1px solid var(--rule-dark);
  gap: 20px;
  grid-template-columns: 110px 1fr;
  padding-top: 16px;
  font: 9px/1.4 var(--sans);
}

.hash-line span {
  color: var(--ink-faint);
  font-weight: 700;
  letter-spacing: 0.1em;
}

.hash-line code {
  overflow-wrap: anywhere;
}

.sample-browser {
  margin: 52px 0;
  border: 1px solid var(--rule-dark);
  background: var(--paper-light);
}

.sample-tabs {
  display: grid;
  border-bottom: 1px solid var(--rule-dark);
  grid-template-columns: repeat(4, 1fr);
}

.sample-tabs button {
  min-height: 58px;
  border: 0;
  border-right: 1px solid var(--rule-dark);
  background: transparent;
  color: var(--ink-soft);
  cursor: pointer;
  font: 10px/1.2 var(--sans);
  padding: 10px;
}

.sample-tabs button:last-child {
  border-right: 0;
}

.sample-tabs button:hover,
.sample-tabs button[aria-selected="true"] {
  background: var(--ink);
  color: var(--paper-light);
}

.sample-panel {
  min-height: 330px;
  padding: clamp(30px, 6vw, 60px);
}

.sample-prompt {
  margin: 0 0 30px !important;
  color: var(--accent-dark);
  font: 700 11px/1.4 var(--mono);
}

.sample-prompt::before {
  content: "Prompt / ";
  color: var(--ink-faint);
}

.sample-panel blockquote {
  margin: 0;
  font-size: clamp(1.35rem, 2.4vw, 2rem);
  line-height: 1.45;
}

.sample-panel blockquote::first-letter {
  color: var(--accent);
  font-size: 1.6em;
}

.sample-browser footer {
  display: flex;
  border-top: 1px solid var(--rule-dark);
  color: var(--ink-faint);
  font: 9px/1 var(--sans);
  gap: 26px;
  letter-spacing: 0.09em;
  padding: 13px 20px;
  text-transform: uppercase;
}

.use-grid {
  display: grid;
  margin: 54px 0 70px;
  gap: 0;
  grid-template-columns: 1fr 1fr;
}

.use-grid article {
  border: 1px solid var(--rule-dark);
  padding: 28px;
}

.use-grid article + article {
  border-left: 0;
}

.use-grid article > span {
  color: var(--chart-secondary);
  font: 700 9px/1 var(--sans);
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.use-grid .use-negative > span {
  color: var(--accent-dark);
}

.use-grid h3 {
  margin: 28px 0 24px;
  font-size: 1.4rem;
  letter-spacing: -0.03em;
}

.use-grid ul {
  margin: 0;
  padding-left: 18px;
  color: var(--ink-soft);
  font-size: 13px;
}

.use-grid li + li {
  margin-top: 8px;
}

.limitation-list {
  border-top: 1px solid var(--rule-dark);
}

.limitation-list article {
  display: grid;
  border-bottom: 1px solid var(--rule-dark);
  gap: 26px;
  grid-template-columns: 45px 1fr;
  padding: 20px 0;
}

.limitation-list article > span {
  color: var(--accent);
  font: 10px/1 var(--mono);
}

.limitation-list h3 {
  margin: 0 0 5px;
  font-size: 14px;
}

.limitation-list p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.5;
}

.resource-groups {
  width: min(var(--wide), calc(100vw - 340px));
  margin: 60px 50% 70px;
  translate: -50% 0;
  display: grid;
  border-top: 1px solid var(--ink);
  border-left: 1px solid var(--rule-dark);
  grid-template-columns: repeat(2, 1fr);
}

.resource-groups section {
  border-right: 1px solid var(--rule-dark);
  border-bottom: 1px solid var(--rule-dark);
  padding: 24px;
}

.resource-groups h3 {
  margin: 0 0 23px;
  color: var(--ink-faint);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.resource-groups a {
  display: flex;
  justify-content: space-between;
  border-top: 1px solid var(--rule);
  gap: 20px;
  padding: 12px 0;
  text-decoration: none;
}

.resource-groups a span {
  font: 650 12px/1.3 var(--sans);
}

.resource-groups a small {
  color: var(--ink-faint);
  font: 9px/1.4 var(--sans);
  text-align: right;
}

.resource-groups a:hover span {
  color: var(--accent-dark);
}

.reproduce-block {
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper-light);
}

.reproduce-block > div {
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid #4a4a45;
  padding: 10px 15px;
  color: #aaa69d;
  font: 9px/1 var(--sans);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.copy-button {
  border: 0;
  background: transparent;
  color: var(--paper-light);
  cursor: pointer;
  font: inherit;
}

.copy-button:hover {
  color: #ff9d80;
}

.reproduce-block pre {
  margin: 0;
  overflow: auto;
  padding: 24px;
}

.reproduce-block code {
  background: transparent;
  color: #efebe2;
  font-size: 12px;
}

.site-footer {
  display: grid;
  min-height: 360px;
  align-items: end;
  border-top: 1px solid var(--ink);
  gap: 40px;
  grid-template-columns: 1.2fr 1fr auto;
  padding: 70px 5vw 50px;
  font-family: var(--sans);
}

.site-footer > div {
  display: flex;
  align-items: center;
  gap: 16px;
}

.site-footer p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 12px;
  line-height: 1.45;
}

.site-footer nav {
  display: grid;
  justify-items: end;
}

.site-footer nav a {
  border-bottom: 1px solid var(--rule);
  font-size: 11px;
  padding: 6px 0;
  text-decoration: none;
}

.noscript-note {
  position: fixed;
  z-index: 300;
  right: 0;
  bottom: 0;
  left: 0;
  background: var(--ink);
  color: white;
  padding: 10px;
  font: 12px/1.4 var(--sans);
  text-align: center;
}

@media (max-width: 1120px) {
  .article-layout {
    grid-template-columns: 190px minmax(0, 1fr);
  }

  .model-card {
    padding: 0 42px;
  }

  .wide-figure,
  .resource-groups {
    width: calc(100vw - 280px);
  }

  .architecture-flow {
    flex-wrap: wrap;
  }

  .flow-node,
  .transformer-stack {
    flex: 1 1 160px;
  }

  .flow-arrow {
    display: none;
  }

  .block-path {
    grid-template-columns: 1fr auto 1fr;
  }

  .block-path > span:nth-of-type(2),
  .block-path > span:nth-of-type(3),
  .block-path > div:nth-of-type(3),
  .block-path > div:nth-of-type(4) {
    margin-top: 8px;
  }
}

@media (max-width: 800px) {
  html {
    scroll-padding-top: 150px;
  }

  body {
    font-size: 16px;
  }

  .site-header {
    min-height: 70px;
    padding: 0 20px;
  }

  .mark-label {
    display: none;
  }

  .top-links {
    gap: 15px;
    font-size: 11px;
  }

  .top-links .top-cta {
    padding: 9px 11px;
  }

  .hero {
    min-height: 0;
    padding: 35px 20px 30px;
  }

  .hero-kicker {
    font-size: 9px;
  }

  .hero h1 {
    margin-top: 76px;
    font-size: clamp(3.1rem, 14vw, 6.3rem);
  }

  .hero-deck {
    margin: 55px 0 0;
    font-size: 1.18rem;
  }

  .hero-metrics {
    grid-template-columns: 1fr 1fr;
  }

  .hero-metrics div {
    padding: 15px 14px 18px;
  }

  .hero-metrics div:nth-child(3) {
    border-top: 1px solid var(--rule-dark);
    border-left: 0;
  }

  .hero-metrics div:nth-child(4) {
    border-top: 1px solid var(--rule-dark);
  }

  .hero-metrics dd {
    font-size: clamp(1.7rem, 9vw, 3.2rem);
  }

  .hero-footer {
    display: grid;
    gap: 8px;
  }

  .article-layout {
    display: block;
  }

  .section-rail {
    z-index: 30;
    top: 0;
    width: 100%;
    height: auto;
    overflow-x: auto;
    border-right: 0;
    border-bottom: 1px solid var(--rule-dark);
    background: color-mix(in srgb, var(--paper) 94%, transparent);
    backdrop-filter: blur(8px);
    padding: 0 20px;
  }

  .section-rail > p {
    display: none;
  }

  .section-rail nav {
    display: flex;
    width: max-content;
  }

  .section-rail a {
    display: flex;
    min-height: 47px;
    border-top: 0;
    border-right: 1px solid var(--rule);
    font-size: 10px;
    padding: 0 13px;
  }

  .section-rail a:first-child {
    border-left: 1px solid var(--rule);
  }

  .section-rail a:last-child {
    border-bottom: 0;
  }

  .section-rail a:hover,
  .section-rail a.is-active {
    padding-left: 13px;
  }

  .model-card {
    padding: 0 20px;
  }

  .article-section {
    padding: 72px 0;
  }

  .intro-section {
    padding-top: 56px;
  }

  .section-heading {
    margin-bottom: 38px;
  }

  .wide-figure,
  .resource-groups {
    width: 100%;
    margin: 52px 0;
    translate: 0;
  }

  .article-section > .wide-figure:last-child {
    margin-bottom: 0;
  }

  .wide-figure figcaption {
    gap: 20px;
  }

  .wide-figure figcaption span:last-child {
    text-align: right;
  }

  .signature-grid,
  .spec-grid {
    grid-template-columns: 1fr 1fr;
  }

  .signature-grid > div {
    min-height: 125px;
  }

  .architecture-flow {
    display: grid;
    padding: 20px;
  }

  .flow-node,
  .transformer-stack {
    min-height: 120px;
  }

  .block-path {
    display: grid;
    grid-template-columns: 1fr;
  }

  .block-path > span {
    display: none;
  }

  .parameter-row {
    gap: 12px;
    grid-template-columns: 1fr;
  }

  .pipeline {
    grid-template-columns: 1fr;
  }

  .pipeline li {
    min-height: 118px;
    border-right: 1px solid var(--rule-dark);
    border-bottom: 0;
  }

  .pipeline li:last-child {
    border-bottom: 1px solid var(--rule-dark);
  }

  .pipeline li:not(:last-child)::after {
    top: auto;
    right: 50%;
    bottom: -9px;
    rotate: 90deg;
    translate: 50% 0;
  }

  .pipeline strong {
    margin-top: 27px;
  }

  .equation-strip {
    gap: 7px;
  }

  .equation-strip span {
    font-size: 1.2rem;
  }

  .equation-strip small {
    font-size: 7px;
  }

  .benchmark-scale {
    padding-left: 0;
  }

  .benchmark-bars > div {
    grid-template-columns: 1fr;
  }

  .recovery-timeline li {
    grid-template-columns: 36px 1fr;
  }

  .recovery-timeline small {
    grid-column: 2;
  }

  .checkpoint-core {
    grid-template-columns: 1fr;
  }

  .checkpoint-center {
    justify-self: center;
  }

  .sample-tabs {
    grid-template-columns: 1fr 1fr;
  }

  .sample-tabs button:nth-child(2) {
    border-right: 0;
  }

  .sample-tabs button:nth-child(-n + 2) {
    border-bottom: 1px solid var(--rule-dark);
  }

  .sample-panel {
    min-height: 280px;
  }

  .resource-groups {
    grid-template-columns: 1fr;
  }

  .site-footer {
    min-height: 0;
    align-items: start;
    grid-template-columns: 1fr;
    padding: 55px 20px;
  }

  .site-footer nav {
    justify-items: start;
  }
}

@media (max-width: 520px) {
  .top-links > a:not(.top-cta) {
    display: none;
  }

  .hero-kicker span:last-child {
    display: none;
  }

  .notice {
    gap: 18px;
    grid-template-columns: 1fr;
    padding: 24px;
  }

  .signature-grid {
    grid-template-columns: 1fr;
  }

  .signature-grid > div {
    min-height: 115px;
  }

  .spec-grid {
    grid-template-columns: 1fr 1fr;
  }

  .spec-grid > div {
    min-height: 115px;
    padding: 14px;
  }

  .spec-grid strong {
    font-size: 1.8rem;
  }

  .two-column-copy,
  .use-grid {
    grid-template-columns: 1fr;
  }

  .use-grid article + article {
    border-top: 0;
    border-left: 1px solid var(--rule-dark);
  }

  .evidence-note {
    gap: 12px;
    grid-template-columns: 1fr;
  }

  .recipe-table {
    grid-template-columns: 1fr;
  }

  .recipe-table div:nth-child(odd) {
    padding-right: 0;
  }

  .recipe-table div:nth-child(even) {
    border-left: 0;
    padding-left: 0;
  }

  .chart {
    min-height: 270px;
  }

  .chart-error {
    min-height: 270px;
  }

  .checkpoint-core li,
  .hash-line {
    grid-template-columns: 1fr;
  }

  .sample-browser footer {
    flex-wrap: wrap;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
  }
}

@media print {
  .reading-progress,
  .site-header,
  .section-rail,
  .copy-button {
    display: none !important;
  }

  body {
    background: white;
  }

  .hero {
    min-height: 0;
  }

  .article-layout {
    display: block;
  }

  .wide-figure,
  .resource-groups {
    width: 100%;
  }
}