@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;450;500;550;600;650;700&family=IBM+Plex+Mono:wght@400;500&display=swap');
:root {
  color-scheme:light;
  --ink:#0d1824;
  --muted:#52677b;
  --amber:#f5b840;
  --amber-light:#fff7e7;
  --line:#d8dde2;
  --paper:#fff;
  --wash:#f7f8f9;
  --claude:#a89acd;
  --codex:#65aeb5;
  --font:'DM Sans',Arial,sans-serif;
  --mono:'IBM Plex Mono',monospace
}
* {
  box-sizing:border-box
}
html {
  scroll-behavior:smooth;
  scroll-padding-top:90px
}
body {
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font);
  font-size:17px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased
}
a {
  color:inherit;
  text-underline-offset:4px
}
button,input,select {
  font:inherit;
  color:inherit
}
button,a,summary,input,select {
  -webkit-tap-highlight-color:transparent
}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible {
  outline:3px solid #ab7100;
  outline-offset:5px
}
button {
  cursor:pointer
}
h1,h2,h3,p,figure {
  margin:0
}
h1,h2,h3 {
  font-weight:550;
  line-height:1.15;
  letter-spacing:-.035em
}
p+p {
  margin-top:18px
}
h2 {
  font-size:42px
}
h3 {
  font-size:24px
}
img,video {
  max-width:100%
}
.site-header {
  max-width:1360px;
  margin:auto;
  min-height:86px;
  padding:18px 48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  border-bottom:1px solid var(--line);
  gap:24px
}
.brand {
  display:inline-flex;
  align-items:center;
  gap:8px;
  text-decoration:none;
  white-space:nowrap;
  font-weight:650;
  font-size:23px;
  letter-spacing:-.035em
}
.brand-divider {
  color:#a6adb6;
  font-weight:400;
  margin:0 13px
}
.brand-research {
  font-size:16px;
  font-weight:450;
  letter-spacing:0
}
.site-header nav {
  display:flex;
  gap:30px;
  font-size:14px;
  font-weight:550
}
.site-header nav a {
  text-decoration:none
}
.site-header nav a:hover {
  color:#996400
}
.hero {
  text-align:center;
  max-width:940px;
  margin:auto;
  padding:72px 24px 76px
}
.eyebrow,.section-number,.figure-label,.version,.overline {
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.085em;
  text-transform:uppercase
}
.eyebrow {
  display:flex;
  align-items:center;
  justify-content:center;
  gap:12px
}
.accent-line {
  width:26px;
  height:3px;
  background:var(--amber)
}
.version {
  background:var(--wash);
  border:1px solid var(--line);
  padding:2px 7px;
  font-size:12px;
  letter-spacing:0
}
.hero h1 {
  font-size:clamp(46px,6.6vw,80px);
  line-height:1.01;
  letter-spacing:-.055em;
  margin:25px 0
}
.title-dot {
  color:var(--amber)
}
.hero-deck {
  font-size:25px;
  line-height:1.35;
  letter-spacing:-.015em
}
.hero-intro {
  font-size:17px;
  max-width:650px;
  margin:21px auto 0;
  color:var(--muted);
  line-height:1.65
}
.actions {
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:12px;
  margin-top:29px
}
.button {
  display:inline-flex;
  justify-content:center;
  align-items:center;
  gap:22px;
  border:1px solid var(--line);
  padding:11px 18px;
  border-radius:3px;
  text-decoration:none;
  font-size:14px;
  font-weight:600;
  background:white;
  transition:background .15s
}
.button.primary {
  background:var(--ink);
  border-color:var(--ink);
  color:white
}
.button:hover {
  background:var(--wash)
}
.button.primary:hover {
  background:#263a4d
}
.publication-meta {
  display:flex;
  gap:20px;
  justify-content:center;
  margin-top:23px;
  font-size:12px;
  color:var(--muted)
}
.publication-meta span+span:before,.publication-meta a:not(:first-child):before {
  content:'·';
  margin-right:20px
}
.publication-meta a {
  text-decoration:none
}
.section {
  max-width:1184px;
  padding:66px 0 70px;
  margin:auto;
  border-top:1px solid var(--line)
}
.section-heading {
  display:grid;
  grid-template-columns:190px 1fr;
  gap:24px;
  margin-bottom:38px
}
.section-number {
  color:var(--muted);
  padding-top:10px;
  font-size:12px
}
.section-deck {
  color:var(--muted);
  margin-top:14px;
  max-width:770px;
  font-size:18px
}
.index-figure {
  border-top:2px solid var(--ink)
}
.pillars {
  display:grid;
  grid-template-columns:1fr 1fr 1fr
}
.pillar {
  padding:26px 30px 27px 0
}
.pillar+.pillar {
  padding-left:30px;
  border-left:1px solid var(--line)
}
.pillar:last-child {
  padding-right:0
}
.pillar-top {
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:19px
}
.pillar-letter {
  font-family:var(--mono);
  font-size:52px;
  line-height:1.15
}
.weight {
  font-family:var(--mono);
  font-size:14px;
  padding:3px 10px;
  border:1px solid var(--line);
  border-radius:2px
}
.pillar h3 {
  font-size:23px;
  margin-bottom:12px
}
.pillar p {
  font-size:16px;
  line-height:1.55;
  color:var(--muted)
}
.pillar-evidence {
  font-size:12px;
  margin-top:24px;
  line-height:1.5;
  color:var(--muted)
}
.formula-row {
  border-top:1px solid var(--ink);
  padding:26px 24px;
  background:var(--amber-light);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px
}
.formula {
  font-family:var(--mono);
  font-size:26px;
  letter-spacing:-.04em;
  white-space:nowrap
}
.formula sup {
  font-size:13px;
  margin-left:2px
}
.math-muted {
  color:#64707a
}
.figure-label {
  font-size:12px
}
.scale-label {
  font-family:var(--mono);
  font-size:12px;
  white-space:nowrap
}
figcaption {
  font-size:13px;
  line-height:1.6;
  color:var(--muted);
  margin-top:15px;
  max-width:1000px
}
.caption-number {
  color:var(--ink);
  font-weight:600
}
.editorial-grid {
  display:grid;
  grid-template-columns:1fr 2fr;
  gap:50px;
  margin-top:47px
}
.editorial-grid h3 {
  font-size:26px;
  line-height:1.3
}
.editorial-grid p {
  color:var(--muted);
  font-size:16px
}
.site-footer {
  border-top:1px solid var(--line);
  max-width:1280px;
  margin:auto;
  padding:32px 48px 50px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:24px
}
.site-footer p {
  font-size:12px;
  color:var(--muted)
}
.skip-link {
  position:absolute;
  top:-100px;
  left:16px;
  background:var(--ink);
  color:white;
  padding:10px 15px;
  z-index:100
}
.skip-link:focus {
  top:12px
}
@media(min-width:1100px) and (max-width:1280px) {
  .section {
    margin:0 48px
  }
}
@media(max-width:1099px) {
  .section {
    margin:0 32px
  }
  .site-header {
    padding:18px 32px
  }
  .section-heading {
    grid-template-columns:145px 1fr
  }
  .formula-row {
    flex-wrap:wrap;
    justify-content:center
  }
  .figure-label {
    display:none
  }
  .pillar {
    padding-right:22px
  }
  .pillar+.pillar {
    padding-left:22px
  }
  .pillar h3 {
    font-size:21px
  }
  .site-header nav {
    gap:20px
  }
  .brand-divider {
    margin:0 8px
  }
}
@media(max-width:760px) {
  body {
    font-size:16px
  }
  .site-header {
    padding:18px 22px;
    flex-wrap:wrap;
    gap:16px
  }
  .site-header nav {
    width:100%;
    gap:0;
    justify-content:space-between;
    font-size:12px
  }
  .brand {
    font-size:22px
  }
  .hero {
    padding:52px 24px
  }
  .hero h1 {
    font-size:clamp(40px,8.5vw,54px)
  }
  .hero-deck {
    font-size:22px
  }
  .desktop-break {
    display:none
  }
  .hero-intro {
    font-size:16px
  }
  .publication-meta {
    font-size:12px;
    gap:9px
  }
  .publication-meta span+span:before,.publication-meta a:not(:first-child):before {
    margin-right:9px
  }
  .section {
    margin:0 24px;
    padding:44px 0
  }
  .section-heading {
    display:block;
    margin-bottom:28px
  }
  .section-number {
    margin-bottom:14px
  }
  h2 {
    font-size:33px
  }
  .section-deck {
    font-size:17px
  }
  .pillars {
    grid-template-columns:1fr
  }
  .pillar,.pillar+.pillar,.pillar:last-child {
    padding:23px 0;
    border-left:0
  }
  .pillar+.pillar {
    border-top:1px solid var(--line)
  }
  .pillar-top {
    margin-bottom:8px
  }
  .pillar-letter {
    font-size:40px
  }
  .pillar h3 {
    font-size:23px
  }
  .pillar-evidence {
    margin-top:13px
  }
  .formula-row {
    padding:22px 8px;
    gap:10px
  }
  .formula {
    font-size:20px
  }
  .formula sup {
    font-size:12px
  }
  .scale-label {
    font-size:12px
  }
  .editorial-grid {
    grid-template-columns:1fr;
    gap:18px;
    margin-top:35px
  }
  .editorial-grid h3 {
    font-size:24px
  }
  .editorial-grid h3 br {
    display:none
  }
  .site-footer {
    padding:25px 24px 35px;
    display:block
  }
  .site-footer p {
    margin-top:12px
  }
}
.method-details {
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  margin-top:30px
}
.method-details+.method-details {
  margin-top:-1px
}
.method-details summary {
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  list-style:none;
  padding:18px 0;
  font-size:15px;
  font-weight:550
}
.method-details summary::-webkit-details-marker,.question-answer summary::-webkit-details-marker {
  display:none
}
summary>span {
  font-family:var(--mono);
  font-size:22px;
  font-weight:400;
  transition:transform .15s
}
.method-details[open]>summary>span,.question-answer details[open]>summary>span {
  transform:rotate(45deg)
}
.details-body {
  padding:5px 0 25px
}
.method-columns {
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:30px
}
.method-columns h4 {
  font-size:16px;
  font-weight:600;
  margin:0 0 10px;
  line-height:1.4
}
.method-columns p {
  font-size:14px;
  color:var(--muted);
  line-height:1.65
}
.small {
  font-size:13px;
  line-height:1.6;
  color:var(--muted)
}
.overline {
  font-size:12px;
  color:var(--muted);
  margin-bottom:12px
}
.learning-header {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:40px;
  margin:48px 0 24px;
  align-items:end
}
.learning-header>p {
  font-size:15px;
  color:var(--muted);
  max-width:520px
}
.learning-header h3 {
  font-size:28px
}
.learning-figure {
  background:var(--wash);
  padding:28px 32px 23px;
  border:1px solid var(--line)
}
.learning-start {
  display:grid;
  grid-template-columns:1fr 50px 1fr 50px 1.3fr;
  align-items:center;
  gap:12px
}
.learning-node {
  display:grid;
  grid-template-columns:24px 1fr;
  gap:4px 12px
}
.node-step {
  font-family:var(--mono);
  font-size:12px;
  color:var(--muted);
  padding-top:4px;
  grid-row:span 2
}
.learning-node strong {
  font-size:16px;
  font-weight:600
}
.learning-node small {
  font-size:12px;
  color:var(--muted)
}
.flow-arrow {
  font-size:25px;
  color:#8d9ca9;
  text-align:center
}
.checkpoint {
  border-left:3px solid var(--amber);
  padding:12px 15px;
  background:white
}
.branch-label {
  text-align:center;
  font-size:12px;
  color:var(--muted);
  border-top:1px solid #a5b1ba;
  margin:32px 5% 23px;
  line-height:0
}
.branch-label span {
  background:var(--wash);
  padding:0 14px
}
.learning-branches {
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
  margin-bottom:23px
}
.learning-branches>div {
  position:relative;
  text-align:center
}
.learning-branches>div:before {
  content:'';
  position:absolute;
  width:1px;
  background:#a5b1ba;
  height:9px;
  top:-14px;
  left:50%
}
.learning-branches strong {
  font-size:15px;
  font-weight:550;
  display:block
}
.learning-branches span {
  font-size:12px;
  color:var(--muted)
}
.learning-figure figcaption {
  border-top:1px solid var(--line);
  padding-top:16px;
  font-size:12px
}
.heading-with-tag {
  display:flex;
  gap:23px;
  align-items:center
}
.status-tag {
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.025em;
  background:var(--amber-light);
  border:1px solid #ecd6aa;
  padding:4px 8px;
  border-radius:2px;
  white-space:nowrap
}
.teach-strip {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:24px 0;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line)
}
.teach-strip>div {
  display:flex;
  gap:14px;
  align-items:flex-start;
  flex:1
}
.step-circle {
  font-family:var(--mono);
  flex-shrink:0;
  font-size:12px;
  border:1px solid #b0bec9;
  border-radius:50%;
  width:27px;
  height:27px;
  display:grid;
  place-items:center;
  margin-top:2px
}
.teach-strip strong {
  font-size:15px;
  display:block
}
.teach-strip p>span {
  display:block;
  font-size:13px;
  line-height:1.5;
  color:var(--muted);
  margin-top:3px
}
.strip-arrow {
  color:#8d9ca9;
  font-size:23px
}
.result-layout {
  display:grid;
  grid-template-columns:1fr 2.15fr;
  gap:50px;
  margin-top:46px
}
.result-intro h3 {
  font-size:28px;
  line-height:1.2;
  margin-bottom:20px
}
.result-intro>p:not(.overline) {
  font-size:15px;
  color:var(--muted)
}
.text-link {
  display:inline-block;
  font-size:13px;
  font-weight:550;
  margin-top:22px
}
.results-figure {
  border:1px solid var(--line);
  padding:25px 27px 18px;
  border-radius:3px
}
.figure-top {
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:15px
}
.figure-top h3 {
  font-size:18px;
  line-height:1.4;
  letter-spacing:-.025em
}
.segmented {
  display:flex;
  flex-shrink:0;
  border:1px solid var(--line);
  border-radius:3px;
  padding:3px;
  gap:2px
}
.segmented button {
  background:transparent;
  border:0;
  padding:5px 9px;
  font-size:12px;
  line-height:1.35;
  border-radius:2px
}
.segmented .selected {
  color:white;
  background:var(--ink)
}
.chart-context {
  font-size:12px;
  color:var(--muted);
  line-height:1.6;
  margin:12px 0 22px
}
.bar-chart {
  padding-bottom:10px
}
.bar-row {
  display:grid;
  grid-template-columns:130px 1fr 63px;
  gap:15px;
  align-items:center;
  margin:20px 0
}
.bar-label strong {
  font-size:15px;
  font-weight:550;
  display:block
}
.bar-detail {
  display:block;
  font-size:12px;
  color:var(--muted);
  line-height:1.4;
  margin-top:2px
}
.bar-track {
  height:31px;
  background:repeating-linear-gradient(to right,transparent 0,transparent calc(25% - 1px),#e7ebef calc(25% - 1px),#e7ebef 25%);
  position:relative;
  border-left:1px solid #dce2e8
}
.bar-fill {
  height:100%;
  border-radius:0 2px 2px 0
}
.bar-fill.brackett {
  background:var(--amber)
}
.bar-fill.codex {
  background:var(--codex)
}
.bar-fill.claude {
  background:var(--claude)
}
.bar-value {
  font-family:var(--mono);
  font-size:22px;
  letter-spacing:-.06em;
  text-align:right
}
.bar-value>span {
  font-size:12px;
  margin-left:2px
}
.axis-row {
  display:flex;
  justify-content:space-between;
  margin-left:145px;
  margin-right:78px;
  font-size:12px;
  font-family:var(--mono);
  color:var(--muted)
}
.results-figure figcaption {
  font-size:12px;
  border-top:1px solid var(--line);
  padding-top:14px
}
.figure-source {
  font-size:12px;
  display:flex;
  justify-content:space-between;
  gap:10px;
  margin-top:15px;
  color:var(--muted)
}
.source-note {
  font-size:12px;
  line-height:1.65;
  color:var(--muted);
  margin-top:23px
}
code {
  font-family:var(--mono);
  font-size:.9em;
  overflow-wrap:anywhere
}
.case-controls {
  display:flex;
  gap:20px;
  align-items:end;
  margin:0 0 14px
}
.case-controls label {
  font-size:12px;
  flex:1
}
.case-controls label:last-child {
  flex:0 1 220px
}
.case-controls input,.case-controls select {
  display:block;
  background:white;
  border:1px solid #acb8c3;
  border-radius:3px;
  font-size:14px;
  padding:10px 12px;
  width:100%;
  margin-top:6px
}
.table-scroll {
  overflow:auto
}
.case-table {
  border-collapse:collapse;
  width:100%;
  font-size:13px;
  margin:16px 0
}
.case-table th {
  padding:12px 16px;
  border-bottom:1px solid var(--ink);
  font-weight:550;
  text-align:right;
  white-space:nowrap
}
.case-table td {
  padding:10px 16px;
  border-bottom:1px solid var(--line);
  font-family:var(--mono);
  font-size:12px;
  text-align:right
}
.case-table th:first-child,.case-table td:first-child {
  text-align:left;
  font-family:var(--font);
  font-size:13px;
  min-width:240px
}
.case-table td:nth-child(2) {
  background:#fffaf0
}
.case-table th:nth-child(2) {
  box-shadow:inset 0 -3px var(--amber)
}
.case-table th:nth-child(3) {
  box-shadow:inset 0 -3px var(--codex)
}
.case-table th:nth-child(4) {
  box-shadow:inset 0 -3px var(--claude)
}
.observation {
  border-left:3px solid var(--amber);
  padding-left:27px;
  grid-template-columns:1fr 2.2fr
}
.demo-layout {
  display:grid;
  grid-template-columns:1.65fr 1fr;
  gap:42px;
  align-items:center
}
.demo-video video {
  display:block;
  width:100%;
  aspect-ratio:16/9;
  object-fit:contain;
  background:#f0f2f4;
  border:1px solid var(--line)
}
.demo-video figcaption {
  font-size:12px;
  line-height:1.75
}
.demo-context h3 {
  font-size:30px;
  line-height:1.15;
  margin-bottom:14px
}
.demo-context>p:not(.overline) {
  font-size:15px;
  color:var(--muted)
}
.task-facts {
  margin:20px 0;
  border-top:1px solid var(--line)
}
.task-facts>div {
  padding:10px 0;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:14px;
  border-bottom:1px solid var(--line)
}
.task-facts dt {
  font-size:12px;
  color:var(--muted)
}
.task-facts dd {
  font-size:12px;
  margin:0;
  font-weight:550;
  text-align:right
}
.demo-context p.small {
  font-size:12px
}
.question-explorer {
  margin-top:42px;
  border:1px solid var(--line)
}
.question-tabs {
  display:grid;
  grid-template-columns:repeat(3,1fr);
  border-bottom:1px solid var(--line)
}
.question-tabs button {
  display:flex;
  align-items:center;
  gap:14px;
  border:0;
  background:var(--wash);
  padding:17px 22px;
  font-family:var(--mono);
  font-size:12px;
  text-align:left
}
.question-tabs button+button {
  border-left:1px solid var(--line)
}
.question-tabs button span {
  font-family:var(--font);
  font-size:14px;
  font-weight:550
}
.question-tabs button[aria-selected=true] {
  background:white;
  box-shadow:inset 0 3px var(--amber)
}
.question-panel {
  display:grid;
  grid-template-columns:1.2fr 1fr;
  min-height:282px
}
.question-panel[hidden] {
  display:none
}
.question-main {
  padding:28px
}
.question-main h3 {
  font-size:22px;
  line-height:1.4;
  letter-spacing:-.02em
}
.question-meta {
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:26px;
  font-size:12px;
  align-items:center;
  color:var(--muted)
}
.evidence-link {
  font-size:12px;
  padding:0;
  border:0;
  background:transparent;
  text-decoration:underline;
  text-underline-offset:4px
}
.question-answer {
  padding:28px;
  background:var(--wash);
  border-left:1px solid var(--line)
}
.question-answer>p:not(.overline) {
  font-size:15px;
  color:var(--muted)
}
.question-answer details {
  margin-top:22px;
  border-top:1px solid var(--line)
}
.question-answer summary {
  font-size:13px;
  display:flex;
  align-items:center;
  gap:15px;
  justify-content:space-between;
  cursor:pointer;
  list-style:none;
  padding-top:14px;
  font-weight:550
}
.answer-body {
  font-size:13px;
  padding-top:17px
}
.answer-body p {
  font-size:12px;
  color:var(--muted);
  margin-top:16px
}
.decision-row {
  display:flex;
  justify-content:space-between;
  gap:10px;
  padding:9px 0;
  border-bottom:1px solid var(--line);
  font-size:12px
}
.decision-row strong {
  font-weight:600;
  white-space:nowrap
}
.exception-flow {
  display:grid;
  justify-items:center;
  font-size:13px;
  gap:3px;
  padding:14px;
  border:1px solid var(--line);
  background:white
}
.exception-flow strong {
  background:var(--amber-light);
  border:1px solid #ecd6aa;
  padding:6px 12px;
  margin-top:3px
}
.corrections {
  padding-left:20px;
  margin:0
}
.corrections li {
  padding-left:3px;
  margin:8px 0;
  font-size:12px
}
.resource-list {
  border-top:2px solid var(--ink)
}
.resource-list>a {
  display:grid;
  grid-template-columns:160px 1fr 25px;
  align-items:center;
  padding:25px 0;
  gap:25px;
  border-bottom:1px solid var(--line);
  text-decoration:none
}
.resource-list>a:hover h3 {
  text-decoration:underline;
  text-underline-offset:4px
}
.resource-type {
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.06em;
  color:var(--muted)
}
.resource-list h3 {
  font-size:21px
}
.resource-list p {
  font-size:13px;
  color:var(--muted);
  margin-top:7px
}
.resource-list>a>span:last-child {
  font-size:23px
}
.walkthrough-grid {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:28px
}
.walkthrough-grid img {
  display:block;
  aspect-ratio:16/9;
  border:1px solid var(--line);
  background:var(--wash)
}
.walkthrough-grid figcaption {
  font-size:12px
}
.research-note {
  display:grid;
  grid-template-columns:1fr 1.7fr;
  gap:20px 45px;
  margin-top:45px
}
.research-note h3 {
  font-size:26px;
  line-height:1.3
}
.research-note p {
  font-size:16px;
  color:var(--muted)
}
.research-note>a {
  grid-column:2;
  font-size:13px;
  justify-self:start
}
.sr-only {
  position:absolute;
  width:1px;
  height:1px;
  padding:0;
  margin:-1px;
  overflow:hidden;
  clip:rect(0,0,0,0);
  white-space:nowrap;
  border:0
}
@media(min-width:1100px) {
  .result-layout {
    gap:45px
  }
}
@media(max-width:1099px) {
  .result-layout {
    gap:30px;
    grid-template-columns:1fr 2fr
  }
  .figure-top {
    display:block
  }
  .segmented {
    display:inline-flex;
    margin-top:12px
  }
  .results-figure {
    padding:23px 20px 17px
  }
  .bar-row {
    grid-template-columns:105px 1fr 57px;
    gap:10px
  }
  .axis-row {
    margin-left:115px;
    margin-right:67px
  }
  .bar-value {
    font-size:20px
  }
  .bar-detail {
    font-size:12px
  }
  .demo-layout {
    gap:25px;
    grid-template-columns:1.4fr 1fr
  }
  .demo-context h3 {
    font-size:27px
  }
  .task-facts>div {
    display:block
  }
  .task-facts dd {
    text-align:left;
    margin-top:3px
  }
  .question-tabs button {
    gap:8px;
    padding:16px
  }
  .question-tabs button span {
    font-size:13px
  }
  .question-panel {
    grid-template-columns:1fr 1fr
  }
  .question-main,.question-answer {
    padding:24px
  }
  .learning-start {
    gap:8px;
    grid-template-columns:1fr 30px 1fr 30px 1.2fr
  }
  .learning-node {
    display:block
  }
  .learning-node strong {
    display:block;
    font-size:14px
  }
  .learning-node small {
    line-height:1.5;
    display:block
  }
  .node-step {
    display:none
  }
}
@media(max-width:760px) {
  .method-details summary {
    font-size:14px
  }
  .method-columns {
    grid-template-columns:1fr;
    gap:22px
  }
  .method-columns h4 {
    margin-bottom:6px
  }
  .learning-header {
    grid-template-columns:1fr;
    gap:15px;
    margin-top:34px
  }
  .learning-header h3 {
    font-size:25px
  }
  .learning-figure {
    padding:20px 16px
  }
  .learning-start {
    grid-template-columns:1fr;
    gap:9px
  }
  .learning-node {
    display:grid;
    grid-template-columns:25px 1fr;
    gap:3px 10px
  }
  .node-step {
    display:block
  }
  .learning-node strong {
    font-size:15px
  }
  .flow-arrow {
    font-size:19px;
    line-height:1;
    transform:rotate(90deg)
  }
  .checkpoint {
    padding:12px 8px
  }
  .branch-label {
    font-size:12px;
    margin-left:0;
    margin-right:0
  }
  .branch-label span {
    padding:0 5px
  }
  .learning-branches {
    grid-template-columns:1fr 1fr;
    gap:22px 14px
  }
  .learning-branches>div:nth-child(n+3):before {
    display:none
  }
  .learning-branches strong {
    font-size:14px
  }
  .learning-branches span {
    font-size:12px
  }
  .heading-with-tag {
    flex-wrap:wrap;
    gap:12px
  }
  .teach-strip {
    display:grid;
    grid-template-columns:1fr;
    gap:16px
  }
  .strip-arrow {
    display:none
  }
  .teach-strip>div {
    gap:14px
  }
  .result-layout {
    grid-template-columns:1fr;
    gap:25px;
    margin-top:32px
  }
  .result-intro h3 {
    font-size:27px;
    margin-bottom:14px
  }
  .result-intro h3 br {
    display:none
  }
  .text-link {
    margin-top:13px
  }
  .figure-top {
    display:flex;
    align-items:center;
    flex-wrap:wrap;
    gap:10px
  }
  .segmented {
    margin-top:0
  }
  .results-figure {
    padding:20px 16px 16px
  }
  .bar-row {
    grid-template-columns:91px 1fr 54px;
    gap:8px
  }
  .bar-label strong {
    font-size:13px
  }
  .bar-detail {
    font-size:12px
  }
  .bar-value {
    font-size:19px
  }
  .bar-value>span {
    font-size:12px
  }
  .bar-track {
    height:28px
  }
  .axis-row {
    margin-left:99px;
    margin-right:62px;
    font-size:12px
  }
  .results-figure figcaption {
    font-size:12px
  }
  .observation {
    padding-left:19px;
    grid-template-columns:1fr
  }
  .case-controls {
    display:block
  }
  .case-controls label {
    display:block;
    margin-top:12px
  }
  .demo-layout {
    grid-template-columns:1fr;
    gap:28px
  }
  .demo-context h3 br {
    display:none
  }
  .task-facts>div {
    display:flex
  }
  .task-facts dd {
    text-align:right;
    margin:0
  }
  .question-explorer {
    margin-top:28px
  }
  .question-tabs button {
    display:block;
    padding:13px 10px;
    font-size:12px
  }
  .question-tabs button span {
    display:block;
    font-size:12px;
    margin-top:4px;
    line-height:1.3
  }
  .question-panel {
    grid-template-columns:1fr;
    min-height:0
  }
  .question-main,.question-answer {
    padding:23px 20px
  }
  .question-main h3 {
    font-size:20px
  }
  .question-answer {
    border-left:0;
    border-top:1px solid var(--line)
  }
  .question-meta {
    margin-top:20px
  }
  .resource-list>a {
    grid-template-columns:1fr 24px;
    gap:8px 15px;
    padding:22px 0
  }
  .resource-type {
    grid-column:1;
    font-size:12px
  }
  .resource-list>a>div {
    grid-column:1
  }
  .resource-list>a>span:last-child {
    grid-column:2;
    grid-row:1 / 3
  }
  .resource-list h3 {
    font-size:20px;
    line-height:1.3
  }
  .resource-list p {
    font-size:12px
  }
  .walkthrough-grid {
    grid-template-columns:1fr;
    gap:25px
  }
  .research-note {
    grid-template-columns:1fr;
    gap:17px
  }
  .research-note>a {
    grid-column:1
  }
  .research-note h3 {
    font-size:24px
  }
}
.noscript-note {
  font-size:13px;
  padding:12px 24px;
  background:var(--amber-light);
  text-align:center
}
button:disabled {
  cursor:default;
  opacity:.55
}
.method-columns p,.learning-header>p,.result-intro>p:not(.overline),.demo-context>p:not(.overline):not(.small),.question-answer>p:not(.overline) {
  font-size:16px
}
.segmented button,.question-tabs button span,.evidence-link,.question-answer summary,.text-link,.research-note>a,.resource-list p,.case-controls label {
  font-size:14px
}
.figure-top {
  flex-wrap:wrap
}
.question-meta {
  font-size:13px
}
.bar-detail {
  font-size:12px
}
.bar-row {
  grid-template-columns:142px minmax(0,1fr) 63px
}
.axis-row {
  margin-left:157px
}
.bar-label {
  min-width:0
}
.question-tabs button {
  line-height:1.4
}
.question-tabs button span {
  font-size:14px
}
.decision-row {
  flex-wrap:wrap
}
.question-answer .answer-body,.answer-body p,.corrections li {
  font-size:14px
}
.decision-row {
  font-size:13px
}
.case-table th,.case-table td,.case-table th:first-child,.case-table td:first-child {
  font-size:14px
}
.task-facts dt,.task-facts dd {
  font-size:14px
}
.task-facts>div {
  align-items:flex-start
}
.learning-node strong,.learning-branches strong {
  font-size:16px
}
.learning-node small,.learning-branches span {
  font-size:13px
}
.resource-list h3 {
  line-height:1.3
}
.source-note {
  overflow-wrap:anywhere
}
.teach-strip strong {
  font-size:16px
}
.teach-strip p>span {
  font-size:14px
}
@media(max-width:1099px) {
  .bar-row {
    grid-template-columns:108px minmax(0,1fr) 57px
  }
  .axis-row {
    margin-left:118px
  }
  .bar-detail {
    font-size:12px
  }
  .result-layout {
    grid-template-columns:1fr 2fr
  }
  .task-facts>div {
    display:block
  }
  .task-facts dd {
    text-align:left
  }
  .question-meta {
    display:grid
  }
}
@media(max-width:760px) {
  .result-layout {
    grid-template-columns:1fr
  }
  .bar-row {
    grid-template-columns:96px minmax(0,1fr) 54px
  }
  .axis-row {
    margin-left:104px
  }
  .bar-label strong {
    font-size:14px
  }
  .bar-detail {
    font-size:12px
  }
  .bar-track {
    height:35px
  }
  .task-facts>div {
    display:flex
  }
  .task-facts dd {
    text-align:right
  }
  .branch-label {
    line-height:1.4;
    border:0
  }
  .question-tabs button {
    padding:13px 9px
  }
  .question-tabs button span {
    font-size:14px
  }
  .source-note,.figure-source {
    font-size:12px
  }
}
.case-study-figure {
  margin: 0 0 48px;
  padding: 25px 0 24px;
  border-top: 2px solid var(--ink);
  border-bottom: 1px solid var(--line);
}
.case-study-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px 30px;
  margin-bottom: 24px;
}
.case-study-heading h3 {
  font-size: 26px;
}
.case-study-heading p {
  font-size: 13px;
  color: var(--muted);
}
.case-image-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}
.case-image-link {
  position: relative;
  display: block;
  aspect-ratio: 1.45;
  overflow: hidden;
  background: var(--wash);
  border: 1px solid var(--line);
  border-radius: 2px;
  cursor: zoom-in;
}
.case-image-link img {
  display: block;
  width: 125%;
  max-width: none;
  height: auto;
  margin-left: -5%;
}
.image-enlarge {
  position: absolute;
  right: 8px;
  bottom: 8px;
  padding: 3px 8px;
  background: white;
  border: 1px solid var(--line);
  font-size: 12px;
  line-height: 1.5;
}
.case-image-link:hover {
  border-color: var(--ink);
}
.case-image-caption h4 {
  margin: 17px 0 9px;
  font-size: 18px;
  font-weight: 550;
  line-height: 1.35;
  letter-spacing: -.025em;
}
.case-image-caption h4 span {
  font-family: var(--mono);
  font-size: 14px;
  color: var(--muted);
  margin-right: 7px;
}
.case-image-caption p {
  font-size: 16px;
  line-height: 1.55;
  color: var(--muted);
}
.case-image-caption .case-image-facts {
  font-size: 13px;
  color: var(--ink);
  background: var(--amber-light);
  display: inline-block;
  padding: 4px 8px;
  margin-bottom: 10px;
}
.case-image-caption p + p {
  margin-top: 0;
}
.case-study-figure > figcaption {
  margin-top: 25px;
}
@media(max-width:1099px) {
  .case-study-heading {
    display: block;
  }
  .case-study-heading p {
    margin-top: 10px;
  }
  .case-image-grid {
    gap: 18px;
  }
}
@media(max-width:760px) {
  .case-study-figure {
    margin-bottom: 32px;
    padding-top: 22px;
  }
  .case-study-heading h3 {
    font-size: 24px;
  }
  .case-image-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}
/* Research landing page: figures first, detailed methods on demand. */
.hero { padding-top:44px; padding-bottom:42px; }
.hero h1 { font-size:clamp(42px,5.6vw,68px); margin:20px 0; }
.hero-deck { font-size:23px; }
.hero-intro { max-width:700px; }
.section { padding-top:45px; padding-bottom:46px; }
.pillar { padding-top:18px; padding-bottom:18px; }
.pillar-top { margin-bottom:9px; }
.pillar-letter { font-size:40px; }
.pillar-evidence { margin-top:14px; }
.publication-meta { flex-wrap:wrap; }
.learning-header { margin-top:32px; }
.connected-figure { padding:22px; background:white; }
.learning-connection { display:grid; grid-template-columns:1fr 24px 3.3fr 24px 1.2fr; gap:14px; align-items:center; }
.context-node { color:var(--muted); }
.context-node strong,.context-node span { display:block; }
.context-node strong { font-size:14px; font-weight:500; }
.context-node span { font-size:12px; margin-top:4px; }
.connection-arrow { color:#8496a6; font-size:23px; }
.repo-contribution { background:var(--amber-light); border:2px solid var(--amber); padding:16px 20px; }
.repo-label { display:block; font-family:var(--mono); font-size:12px; margin-bottom:13px; }
.repo-contribution>div { display:flex; align-items:center; justify-content:space-between; gap:12px; }
.repo-contribution p { margin:0; }
.repo-contribution strong { display:block; font-size:22px; line-height:1.2; }
.repo-contribution p>span { display:block; font-size:12px; margin-top:7px; }
.repo-contribution>div>span { font-size:24px; }
.learning-extension { margin-top:17px; border-bottom:0; }
.learning-extension summary { padding-bottom:0; }
.learning-extension[open] summary { padding-bottom:17px; }
.result-layout { display:block; margin:22px auto 0; max-width:840px; }
.result-scope { font-size:14px; color:var(--muted); }
.result-layout .figure-top { display:flex; justify-content:space-between; }
.result-layout .bar-row { grid-template-columns:160px minmax(0,1fr) 64px; }
.result-layout .axis-row { margin-left:175px; margin-right:79px; }
.research-chart { margin:30px auto 18px; max-width:1080px; }
.research-chart>a { display:block; }
.research-chart img { display:block; width:100%; height:auto; }
.research-chart figcaption { font-size:13px; margin:12px 3% 0; }
.research-chart>a:focus-visible { outline-offset:3px; }
.heatmap-chart { max-width:1030px; }
.inventory-chart { margin-top:0; }
.task-dimensions { display:grid; grid-template-columns:repeat(3,1fr); border-top:1px solid var(--line); margin-top:27px; }
.task-dimensions span { border-bottom:1px solid var(--line); padding:13px; font-size:14px; }
.task-dimensions span:before { content:'+'; color:#9b6b0d; margin-right:12px; font-family:var(--mono); }
.question-explorer { margin-top:12px; }
.case-study-heading h3 { font-size:24px; }
.case-study-figure { margin-bottom:28px; }
.demo-context>p:not(.overline):not(.small) { font-size:16px; }
.chart-details[open]>summary { border-bottom:1px solid var(--line); }
@media(max-width:760px) {
  .hero { padding:34px 24px; }
  .hero h1 { font-size:42px; }
  .section { padding:32px 0; }
  .publication-meta { gap:10px 16px; }
  .publication-meta a:not(:first-child):before { content:none; }
  .learning-connection { grid-template-columns:1fr; text-align:center; gap:12px; }
  .connection-arrow { transform:rotate(90deg); }
  .repo-contribution { padding:18px 12px; text-align:left; }
  .repo-label { text-align:center; }
  .repo-contribution strong { font-size:20px; }
  .repo-contribution p>span { font-size:12px; }
  .result-layout .bar-row { grid-template-columns:96px minmax(0,1fr) 54px; }
  .result-layout .axis-row { margin-left:104px; margin-right:62px; }
  .task-dimensions { grid-template-columns:1fr 1fr; }
  .research-chart { overflow-x:auto; }
  .research-chart>a { min-width:650px; }
  .heatmap-chart>a { min-width:780px; }
}
@media(prefers-reduced-motion:reduce) {
  html {
    scroll-behavior:auto
  }
  * {
    transition:none!important
  }
}