.early-contribution{padding:12px 0 44px}.early-contribution h2{font-size:30px;line-height:1.25;margin:12px 0 24px}.contribution-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;margin-bottom:20px}.contribution-cards article{border-top:1px solid var(--line);padding-top:18px}.contribution-cards article>span{font-size:10px;letter-spacing:1px;font-weight:700;color:var(--muted)}.contribution-cards h3{font-size:18px;margin:12px 0}.contribution-cards p{font-size:14px;line-height:1.6;color:var(--muted)}
.decision-records{padding:0 0 88px}.decision-records>h2{font-size:clamp(32px,4vw,48px);line-height:1.1;letter-spacing:-1.5px;margin:20px 0}.tradeoff{border-top:1px solid var(--line)}.tradeoff:last-of-type{border-bottom:1px solid var(--line)}.tradeoff>summary{display:grid;grid-template-columns:180px minmax(0,1fr) 20px;gap:24px;padding:26px 0;cursor:pointer;list-style:none;align-items:center}.tradeoff>summary::-webkit-details-marker{display:none}.tradeoff>summary>span:first-child{font-size:10px;font-weight:700;letter-spacing:1px;color:var(--muted)}.tradeoff>summary strong{font-size:20px;line-height:1.4}.tradeoff[open]>summary>span:last-child{transform:rotate(45deg)}.tradeoff-content{padding:0 0 28px;max-width:1080px}.tradeoff-content p{line-height:1.7;color:var(--muted);font-size:15px}.era-comparison,.tradeoff-pair{display:grid;grid-template-columns:1fr 1fr;gap:28px;margin:0 0 22px}.era-comparison article{background:var(--soft);padding:24px;border-radius:4px}.era-comparison h3{font-size:18px;line-height:1.4;margin:12px 0}.choice-table{border-collapse:collapse;width:100%;min-width:650px;font-size:14px;line-height:1.6}.choice-table th,.choice-table td{text-align:left;padding:16px;border-bottom:1px solid var(--line);vertical-align:top}.choice-table th{font-weight:600}.choice-table thead th{background:var(--soft);font-size:12px}.choice-table .chosen{background:#e7edda}.tradeoff-content .table-region{margin-bottom:20px}
@media(max-width:760px){.contribution-cards,.era-comparison,.tradeoff-pair{grid-template-columns:1fr}.tradeoff>summary{grid-template-columns:minmax(0,1fr) 20px;gap:12px}.tradeoff>summary>span:first-child{grid-column:1/-1}.tradeoff>summary strong{font-size:18px}.early-contribution h2{font-size:26px}.decision-records{padding-bottom:56px}.contribution-cards{gap:14px}.tradeoff-content{padding-bottom:24px}.era-comparison,.tradeoff-pair{gap:16px}}
:root {
  --paper:#f7f8f3;
  --white:#fff;
  --ink:#1b3028;
  --muted:#5e6b63;
  --line:#d9dfd4;
  --accent:#dbe7bd;
  --forest:#254d3b;
  --soft:#eef1e7;
  --max:1320px;
  --font:"Helvetica Neue",Helvetica,Arial,sans-serif
}

.research-layout>* {
  min-width:0
}

* {
  box-sizing:border-box
}

html {
  scroll-behavior:smooth;
  scroll-padding-top:108px
}

body {
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased
}

button,input,select {
  font:inherit
}

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

button {
  color:inherit
}

a {
  color:inherit;
  text-decoration:none
}

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

button {
  cursor:pointer
}

p,h1,h2,h3,h4,figure,dl {
  margin:0
}

ul,ol {
  padding:0;
  margin:0
}

button:focus-visible,a:focus-visible,summary:focus-visible,[tabindex]:focus-visible {
  outline:3px solid #417354;
  outline-offset:5px
}

[hidden] {
  display:none!important
}

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

.wrap {
  width:min(calc(100% - 96px),var(--max));
  margin-inline:auto
}

.eyebrow,.mini-label,.screen-label {
  font-size:11px;
  line-height:1.5;
  font-weight:600;
  letter-spacing:.12em
}

.eyebrow {
  display:flex;
  align-items:center;
  gap:9px
}

.mini-label {
  color:var(--muted)
}

.status-dot {
  display:inline-block;
  width:7px;
  height:7px;
  flex-shrink:0;
  border-radius:50%;
  background:var(--forest)
}

.tag {
  font-size:11px;
  letter-spacing:.02em;
  font-weight:500;
  line-height:1.5;
  padding:5px 9px;
  border:1px solid var(--line);
  background:var(--paper)
}

.skip-link {
  position:fixed;
  left:20px;
  top:-100px;
  z-index:100;
  padding:12px 20px;
  background:var(--ink);
  color:white
}

.skip-link:focus {
  top:12px
}

.site-header {
  position:sticky;
  top:0;
  z-index:20;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:0 max(48px,calc((100vw - var(--max))/2));
  height:78px;
  border-bottom:1px solid var(--line);
  background:var(--paper)
}

.wordmark {
  font-size:21px;
  font-weight:700;
  letter-spacing:-1.5px;
  display:inline-flex;
  align-items:center;
  gap:14px
}

.wordmark span {
  font-size:13px;
  font-weight:500;
  letter-spacing:0
}

.site-header nav {
  display:flex;
  gap:25px;
  align-items:center;
  font-size:12px;
  font-weight:500
}

.site-header nav>a {
  padding:10px 0;
  position:relative
}

.site-header nav>a:not(.nav-demo)::after {
  position:absolute;
  content:"";
  bottom:3px;
  left:0;
  width:0;
  height:1px;
  background:var(--forest);
  transition:width .16s
}

.site-header nav>a:hover::after,.site-header nav>a[aria-current="location"]::after {
  width:100%
}

.nav-demo {
  margin-left:8px;
  padding:8px 13px!important;
  border:1px solid var(--line)
}

.nav-demo:hover {
  background:var(--soft)
}

.menu-toggle {
  display:none
}

.read-progress {
  position:absolute;
  bottom:-1px;
  left:0;
  width:100%;
  height:2px
}

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

.hero {
  display:grid;
  grid-template-columns:.92fr 1.08fr;
  gap:48px;
  padding-top:88px;
  padding-bottom:70px;
  align-items:center
}

.hero h1 {
  font-size:clamp(52px,5.2vw,76px);
  letter-spacing:-.067em;
  line-height:1.02;
  font-weight:500;
  margin:27px 0 25px
}

.hero h1 span {
  color:var(--forest)
}

.hero-intro {
  font-size:19px;
  line-height:1.55;
  max-width:430px;
  color:var(--muted)
}

.hero-actions {
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:22px;
  margin:27px 0 34px
}

.button {
  display:inline-flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding:14px 19px;
  font-size:12px;
  font-weight:600;
  border:1px solid var(--ink);
  transition:background .16s,transform .16s;
  min-height:46px
}

.button:hover {
  transform:translateY(-2px)
}

.primary {
  color:var(--white);
  background:var(--ink)
}

.primary:hover {
  background:var(--forest)
}

.secondary {
  background:transparent
}

.secondary:hover {
  background:var(--soft)
}

.text-link {
  font-size:12px;
  font-weight:600;
  text-decoration:underline;
  text-underline-offset:6px;
  text-decoration-color:var(--line);
  padding:10px 0
}

.text-link:hover {
  text-decoration-color:var(--ink)
}

.project-meta {
  display:grid;
  gap:10px;
  max-width:470px
}

.project-meta>div {
  display:grid;
  grid-template-columns:88px 1fr;
  font-size:12px;
  gap:13px;
  line-height:1.55
}

.project-meta dt {
  color:var(--muted)
}

.project-meta dd {
  margin:0
}

.hero-product {
  align-self:center;
  min-width:0
}

.screen-label {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  margin-bottom:15px;
  font-size:10px
}

.screen-label .tag {
  font-size:10px;
  letter-spacing:0
}

.screenshot {
  position:relative;
  display:block;
  width:100%;
  background:#fff;
  padding:0;
  border:1px solid var(--line);
  text-align:left;
  overflow:hidden;
  transition:border-color .15s
}

.screenshot:hover {
  border-color:#8c9b8b
}

.screenshot img {
  width:100%;
  height:auto
}

.hero-shot {
  box-shadow:0 24px 40px -30px #27473255
}

.hero-shot img {
  width:100%;
  height:440px;
  object-fit:cover;
  object-position:top
}

.browser-bar {
  display:flex;
  gap:5px;
  align-items:center;
  height:30px;
  padding:0 12px;
  background:#fff;
  border-bottom:1px solid var(--line);
  font-size:9px;
  color:var(--muted)
}

.browser-bar i {
  width:4px;
  height:4px;
  border:1px solid #8b978e;
  border-radius:50%
}

.browser-bar span {
  margin-left:15px;
  flex:1
}

.browser-bar b {
  font-size:13px;
  font-weight:400
}

.zoom-hint {
  position:absolute;
  right:14px;
  bottom:14px;
  padding:6px 10px;
  font-size:10px;
  font-weight:600;
  letter-spacing:.02em;
  background:var(--paper);
  border:1px solid var(--line);
  color:var(--ink)
}

figcaption {
  margin-top:12px;
  font-size:11px;
  line-height:1.6;
  color:var(--muted)
}

.caption-line {
  display:inline-block;
  height:1px;
  width:15px;
  margin-right:7px;
  vertical-align:middle;
  background:var(--forest)
}

.hero-principle {
  margin-top:32px;
  padding-top:20px;
  border-top:1px solid var(--line)
}

.hero-principle p {
  font-size:17px;
  line-height:1.6;
  margin-top:6px
}

.hero-principle strong {
  font-weight:500
}

.proof-strip {
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  display:grid;
  grid-template-columns:1fr 1.12fr 1fr 1.55fr
}

.proof-strip>div {
  display:flex;
  align-items:center;
  gap:17px;
  padding:27px 22px;
  border-right:1px solid var(--line)
}

.proof-strip>div:first-child {
  padding-left:0
}

.proof-strip>div:last-child {
  border-right:0;
  padding-right:0
}

.proof-strip strong {
  font-size:34px;
  letter-spacing:-.05em;
  line-height:1.1;
  font-weight:500;
  white-space:nowrap
}

.proof-strip span {
  font-size:12px;
  line-height:1.5
}

.proof-strip small {
  color:var(--muted);
  font-size:10px
}

.proof-strip .proof-outcome {
  display:block;
  padding-left:30px
}

.proof-outcome .mini-label {
  font-size:9px
}

.proof-outcome p {
  font-size:13px;
  margin-top:8px;
  line-height:1.55
}

.reader-note {
  display:flex;
  align-items:center;
  gap:28px;
  padding:24px 0;
  font-size:11px;
  color:var(--muted)
}

.reader-note>span {
  font-weight:600;
  white-space:nowrap
}

.reader-note p {
  flex:1;
  max-width:615px
}

.reader-note a {
  margin-left:auto;
  font-weight:600;
  white-space:nowrap;
  color:var(--ink)
}

.section {
  padding-top:108px;
  padding-bottom:108px;
  scroll-margin-top:0
}

.section-head {
  margin-bottom:46px;
  max-width:760px
}

.section-head h2,.contribution-layout h2,.closing h2 {
  font-size:clamp(38px,4vw,58px);
  font-weight:500;
  line-height:1.09;
  letter-spacing:-.055em;
  margin-top:20px
}

.section-intro {
  font-size:16px;
  line-height:1.65;
  color:var(--muted);
  max-width:615px;
  margin-top:21px
}

.lead {
  font-size:27px;
  line-height:1.45;
  letter-spacing:-.025em
}

.challenge-layout {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:100px
}

.challenge-layout .lead {
  max-width:500px
}

.challenge-lines>div {
  display:grid;
  grid-template-columns:32px 1fr;
  gap:6px 18px;
  padding:20px 0;
  border-top:1px solid var(--line)
}

.challenge-lines>div:first-child {
  padding-top:0;
  border-top:0
}

.challenge-lines>div>span {
  font-size:11px;
  color:var(--muted);
  grid-row:span 2;
  padding-top:4px
}

.challenge-lines h3 {
  font-size:16px;
  font-weight:500
}

.challenge-lines p {
  color:var(--muted);
  font-size:13px;
  line-height:1.65
}

.scope-line {
  display:flex;
  align-items:baseline;
  gap:24px;
  border-top:1px solid var(--line);
  margin-top:40px;
  padding-top:22px;
  font-size:12px
}

.scope-line>span {
  color:var(--muted);
  font-size:11px
}

.scope-line .source-link {
  margin-left:auto;
  white-space:nowrap
}

.source-link {
  font-size:11px;
  font-weight:600;
  text-decoration:underline;
  text-decoration-color:#a6b49d;
  text-underline-offset:5px;
  display:inline-block;
  padding:7px 0;
  line-height:1.5
}

.source-link:hover {
  text-decoration-color:var(--ink)
}

.source-note {
  color:var(--muted);
  font-size:11px;
  line-height:1.7;
  margin-top:17px
}

.research-section {
  background:var(--soft);
  border-block:1px solid var(--line)
}

.research-layout {
  display:grid;
  grid-template-columns:.7fr 1.3fr;
  gap:110px;
  align-items:start
}

.research-number strong {
  font-size:108px;
  line-height:1;
  letter-spacing:-.07em;
  font-weight:400;
  display:block
}

.research-number strong span {
  display:block;
  font-size:21px;
  line-height:1.3;
  letter-spacing:-.02em;
  margin-top:17px
}

.research-number p {
  font-size:12px;
  color:var(--muted);
  margin:24px 0 9px
}

.research-methods>div {
  display:grid;
  grid-template-columns:42px 115px 1fr;
  gap:15px;
  padding:24px 0;
  border-top:1px solid #c9d3c4
}

.research-methods>div:last-child {
  border-bottom:1px solid #c9d3c4
}

.method-index {
  font-size:11px;
  color:var(--muted);
  padding-top:5px
}

.research-methods h3 {
  font-size:24px;
  font-weight:500;
  letter-spacing:-.04em
}

.research-methods p {
  font-size:13px;
  color:var(--muted);
  line-height:1.7
}

.research-themes {
  margin-top:50px
}

.research-themes>div {
  display:grid;
  grid-template-columns:repeat(4,1fr);
  border-block:1px solid #c9d3c4;
  margin-top:16px
}

.research-themes>div>span {
  font-size:15px;
  font-weight:500;
  border-right:1px solid #c9d3c4;
  padding:21px 22px
}

.research-themes>div>span:first-child {
  padding-left:0
}

.research-themes>div>span:last-child {
  border-right:0
}

.research-atlas-teaser {display:grid;grid-template-columns:1fr 1fr;gap:40px 70px;border-top:1px solid var(--line);padding-top:45px;margin-top:46px}
.research-atlas-teaser h3 {font-size:clamp(32px,3.5vw,48px);line-height:1.14;letter-spacing:-.04em;font-weight:500;margin:15px 0 22px}
.research-atlas-teaser>div:first-child>p:not(.mini-label) {font-size:14px;color:var(--muted);max-width:480px;margin-bottom:25px}
.research-atlas-teaser .button {font-size:12px}
.research-depth {list-style:none;display:grid;gap:24px}
.research-depth li {border-bottom:1px solid var(--line);padding-bottom:20px}
.research-depth span {display:block;font-size:11px;letter-spacing:.08em;color:var(--muted);margin-bottom:8px}
.research-depth strong {font-size:18px;font-weight:500;display:block;margin-bottom:6px}
.research-depth p {font-size:13px;color:var(--muted);line-height:1.75}
.research-deep-links {grid-column:1/-1;display:flex;gap:28px;flex-wrap:wrap}
@media(max-width:760px) {.research-atlas-teaser{grid-template-columns:1fr;gap:28px;margin-top:32px;padding-top:30px}.research-deep-links{gap:14px}.research-atlas-teaser .button{font-size:11px;padding-inline:15px}}

.evidence-details {
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  margin-top:36px;
  padding:0 0 1px
}

.evidence-details summary {
  cursor:pointer;
  list-style:none;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:20px;
  font-size:12px;
  font-weight:600;
  padding:20px 0
}

.evidence-details summary::-webkit-details-marker {
  display:none
}

.evidence-details summary>span {
  font-size:20px;
  font-weight:400
}

.evidence-details[open] summary>span {
  transform:rotate(45deg)
}

.evidence-details>p {
  max-width:760px;
  font-size:13px;
  color:var(--muted);
  padding-bottom:20px
}

.evidence-details .source-note {
  font-size:11px
}

.evidence-details>.source-link {
  margin-bottom:20px
}

.historical-metrics {
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:45px;
  margin:10px 0 20px
}

.historical-metrics span {
  font-size:11px;
  color:var(--muted);
  display:block
}

.historical-metrics strong {
  font-size:37px;
  font-weight:500;
  letter-spacing:-.04em;
  display:block;
  margin:8px 0
}

.historical-metrics small {
  font-size:18px;
  font-weight:400
}

.historical-metrics p {
  font-size:12px;
  color:var(--muted);
  max-width:280px
}

.decision-layout {
  display:grid;
  grid-template-columns:.65fr 1.35fr;
  gap:70px
}

.decision-selectors {
  border-top:1px solid var(--line)
}

.decision-selectors button {
  width:100%;
  background:none;
  border:0;
  border-bottom:1px solid var(--line);
  display:grid;
  grid-template-columns:25px 1fr 20px;
  gap:3px 12px;
  padding:25px 14px;
  text-align:left;
  position:relative;
  line-height:1.55
}

.decision-selectors button>span {
  font-size:10px;
  color:var(--muted);
  grid-row:span 2;
  padding-top:3px
}

.decision-selectors button strong {
  font-size:17px;
  font-weight:500;
  letter-spacing:-.02em
}

.decision-selectors button small {
  font-size:11px;
  color:var(--muted);
  grid-column:2
}

.decision-selectors button b {
  font-weight:400;
  grid-column:3;
  grid-row:1/3;
  align-self:center
}

.decision-selectors button[aria-selected=true] {
  background:var(--soft);
  box-shadow:inset 3px 0 var(--forest)
}

.decision-selectors button:hover {
  background:var(--soft)
}

.decision-panel {
  background:var(--ink);
  color:var(--paper);
  padding:38px 43px;
  min-width:0
}

.decision-panel .mini-label {
  color:#c3d0bd
}

.decision-panel h3 {
  font-size:29px;
  font-weight:500;
  letter-spacing:-.035em;
  line-height:1.3;
  margin:11px 0 28px
}

.reasoning-chain {
  list-style:none;
  position:relative
}

.reasoning-chain li {
  display:grid;
  grid-template-columns:135px 1fr;
  gap:20px;
  border-top:1px solid #3e5146;
  padding:15px 0
}

.reasoning-chain li>span {
  font-size:10px;
  color:#c3d0bd;
  padding-top:3px
}

.reasoning-chain li p {
  font-size:13px;
  line-height:1.65
}

.reasoning-chain .implemented {
  border-left:2px solid var(--accent);
  padding-left:15px;
  margin-left:-17px
}

.reasoning-chain .implemented p {
  color:var(--accent)
}

.decision-boundary {
  font-size:10px;
  color:#c3d0bd;
  margin-top:23px
}

.decision-panel .source-link {
  color:var(--paper);
  margin-top:12px;
  text-decoration-color:#768c72
}

.design-section {
  background:#fff;
  border-block:1px solid var(--line)
}

.tab-bar {
  display:flex;
  gap:30px;
  border-bottom:1px solid var(--line);
  margin-bottom:35px;
  flex-wrap:wrap
}

.tab-bar button {
  border:0;
  background:none;
  font-size:12px;
  padding:12px 0 17px;
  border-bottom:2px solid transparent;
  margin-bottom:-1px;
  min-height:45px;
  line-height:1.4;
  white-space:nowrap;
  color:var(--muted)
}

.tab-bar button[aria-selected=true] {
  border-bottom-color:var(--forest);
  color:var(--ink);
  font-weight:600
}

.tab-bar button:hover {
  color:var(--ink)
}

.artifact-stage {
  min-height:370px
}

.artifact-caption {
  display:flex;
  gap:60px;
  justify-content:space-between;
  align-items:start;
  margin:0 0 32px
}

.artifact-caption h3 {
  font-size:24px;
  line-height:1.3;
  font-weight:500;
  letter-spacing:-.025em;
  max-width:480px
}

.artifact-caption p {
  font-size:13px;
  color:var(--muted);
  max-width:450px
}

.journey-stages {
  list-style:none;
  display:grid;
  grid-template-columns:repeat(5,1fr);
  border:1px solid var(--line)
}

.journey-stages li {
  padding:24px 20px;
  border-right:1px solid var(--line);
  min-width:0
}

.journey-stages li:last-child {
  border:0
}

.journey-stages li>span {
  font-size:10px;
  color:var(--muted)
}

.journey-stages h4 {
  font-size:17px;
  font-weight:500;
  letter-spacing:-.03em;
  margin:15px 0 8px
}

.journey-stages p {
  font-size:11px;
  color:var(--muted)
}

.journey-stages small {
  font-size:10px;
  display:block;
  margin-top:20px;
  color:var(--muted)
}

.journey-stages .focus-stage {
  background:var(--accent)
}

.journey-stages .focus-stage small {
  color:var(--ink)
}

.artifact-takeaway {
  display:grid;
  grid-template-columns:145px 1fr;
  gap:26px;
  padding:23px 0 16px;
  margin-top:12px
}

.artifact-takeaway>span {
  font-size:11px;
  font-weight:600;
  padding-top:2px
}

.artifact-takeaway p {
  font-size:13px;
  color:var(--muted);
  max-width:700px
}

.adjacent-link {
  margin-left:24px
}

.table-region {
  overflow-x:auto;
  overscroll-behavior-inline:contain;
  max-width:100%;
  border:1px solid var(--line)
}

table {
  border-collapse:collapse;
  width:100%;
  text-align:left;
  font-size:12px
}

th,td {
  padding:18px 20px;
  border-bottom:1px solid var(--line);
  border-right:1px solid var(--line);
  vertical-align:top;
  line-height:1.6
}

th:last-child,td:last-child {
  border-right:0
}

thead th {
  font-size:10px;
  color:var(--muted);
  font-weight:500;
  background:var(--paper)
}

tbody th {
  font-weight:500;
  min-width:125px
}

tbody td {
  color:var(--muted)
}

tbody tr:last-child td,tbody tr:last-child th {
  border-bottom:0
}

.blueprint {
  min-width:760px
}

.backstage-row {
  background:var(--soft);
  border-top:2px solid #97aa8b
}

.process-comparison {
  display:grid;
  grid-template-columns:1fr 1fr;
  border:1px solid var(--line)
}

.process-comparison>div {
  padding:26px 32px
}

.process-comparison>div+div {
  border-left:1px solid var(--line);
  background:var(--soft)
}

.process-comparison ol {
  list-style-position:inside;
  margin:18px 0;
  font-size:13px
}

.process-comparison li {
  padding:10px 0;
  border-bottom:1px solid var(--line)
}

.process-comparison p {
  font-size:11px;
  color:var(--muted)
}

.system-layout {
  display:grid;
  grid-template-columns:1.3fr .7fr;
  gap:35px;
  align-items:center
}

.system-layout>img {
  width:100%;
  height:auto;
  background:var(--paper);
  border:1px solid var(--line)
}

.data-outline dl {
  margin:15px 0
}

.data-outline dl>div {
  border-top:1px solid var(--line);
  padding:14px 0
}

.data-outline dt {
  font-size:13px;
  font-weight:500
}

.data-outline dd {
  font-size:11px;
  color:var(--muted);
  margin:4px 0 0
}

.data-outline>p {
  font-size:11px;
  color:var(--muted)
}

.product-scenario {
  display:grid;
  grid-template-columns:.75fr 1.25fr;
  gap:70px;
  align-items:start;
  padding-top:12px
}

.product-scenario h3 {
  font-size:33px;
  line-height:1.18;
  letter-spacing:-.04em;
  font-weight:500;
  margin:22px 0 25px
}

.compact-steps {
  list-style:none
}

.compact-steps li {
  display:flex;
  gap:15px;
  padding:18px 0;
  border-top:1px solid var(--line)
}

.compact-steps li>span {
  font-size:10px;
  color:var(--muted);
  padding-top:3px
}

.compact-steps p {
  font-size:12px;
  color:var(--muted)
}

.compact-steps strong {
  display:block;
  font-size:14px;
  font-weight:500;
  color:var(--ink);
  margin-bottom:4px
}

.staff-copy>.text-link {
  display:inline-block;
  margin-top:14px
}

.product-image {
  min-width:0
}

.product-image .screenshot img {
  aspect-ratio:1.3;
  object-fit:cover;
  object-position:right top
}

.product-boundary {
  border-top:1px solid var(--line);
  padding-top:23px;
  margin-top:37px;
  display:grid;
  grid-template-columns:145px 1fr;
  gap:26px
}

.product-boundary>span {
  font-size:11px;
  font-weight:600
}

.product-boundary p {
  font-size:12px;
  color:var(--muted);
  max-width:750px
}

.scenario-intro {
  font-size:16px;
  color:var(--muted);
  max-width:440px
}

.guest-flow {
  list-style:none;
  border-top:1px solid var(--line)
}

.guest-flow>li {
  display:flex;
  gap:28px;
  padding:23px 20px;
  border-bottom:1px solid var(--line)
}

.guest-flow>li:nth-child(3) {
  background:var(--soft)
}

.guest-flow>li>span {
  font-size:11px;
  color:var(--muted);
  padding-top:3px
}

.guest-flow h4 {
  font-size:17px;
  font-weight:500;
  margin-bottom:6px
}

.guest-flow p {
  font-size:13px;
  color:var(--muted)
}

code {
  font-family:ui-monospace,SFMono-Regular,Consolas,monospace;
  font-size:.9em;
  background:#e9eee2;
  padding:2px 4px;
  color:var(--ink)
}

.analytics-section {
  background:var(--soft);
  border-block:1px solid var(--line)
}

.synthetic-note {
  display:flex;
  align-items:center;
  gap:13px;
  font-size:11px;
  padding:15px 0;
  border-block:1px solid #c9d3c4;
  margin-bottom:35px
}

.synthetic-note strong {
  font-weight:600;
  white-space:nowrap
}

.synthetic-note>span:last-child {
  color:var(--muted)
}

.analytics-layout {
  display:grid;
  grid-template-columns:.74fr 1.26fr;
  gap:64px;
  align-items:start
}

.metric-selector {
  border-top:1px solid #c9d3c4
}

.metric-selector button {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  width:100%;
  background:none;
  border:0;
  border-bottom:1px solid #c9d3c4;
  text-align:left;
  padding:14px 15px;
  min-height:57px;
  line-height:1.3
}

.metric-selector button>span {
  font-size:12px
}

.metric-selector button strong {
  font-size:24px;
  font-weight:500;
  letter-spacing:-.04em;
  white-space:nowrap
}

.metric-selector button small {
  font-size:11px;
  letter-spacing:0;
  font-weight:400;
  color:var(--muted)
}

.metric-selector button[aria-selected=true] {
  background:var(--paper);
  box-shadow:inset 3px 0 var(--forest)
}

.metric-selector button:hover {
  background:var(--paper)
}

.metric-detail {
  margin-top:23px;
  min-height:160px
}

.metric-detail .mini-label {
  font-size:9px
}

.metric-detail h3 {
  font-size:21px;
  font-weight:500;
  letter-spacing:-.025em;
  line-height:1.35;
  margin:12px 0
}

.metric-detail p {
  font-size:12px;
  color:var(--muted)
}

.metric-detail p.metric-caveat {
  font-size:11px;
  margin-top:13px;
  border-left:2px solid #b4c4a5;
  padding-left:13px
}

.analytics-image .screenshot img {
  aspect-ratio:1.17;
  object-fit:cover;
  object-position:top
}

.measurement-principle {
  margin-top:34px;
  padding-top:24px;
  border-top:1px solid #c9d3c4;
  display:grid;
  grid-template-columns:180px 1fr;
  gap:35px
}

.measurement-principle>span {
  font-size:11px;
  font-weight:600
}

.measurement-principle p {
  font-size:16px;
  letter-spacing:-.015em;
  color:var(--muted)
}

.measurement-principle strong {
  font-weight:500;
  color:var(--ink)
}

.validation-grid {
  display:grid;
  grid-template-columns:repeat(3,1fr);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line)
}

.validation-grid article {
  padding:31px 32px 28px 0;
  border-right:1px solid var(--line);
  display:flex;
  flex-direction:column;
  align-items:start
}

.validation-grid article+article {
  padding-left:32px
}

.validation-grid article:last-child {
  border-right:0;
  padding-right:0
}

.validation-grid h3 {
  font-size:23px;
  font-weight:500;
  letter-spacing:-.035em;
  margin:15px 0 22px
}

.validation-grid ul {
  list-style:none;
  margin-bottom:24px;
  flex:1
}

.validation-grid li {
  font-size:12px;
  color:var(--muted);
  padding:5px 0;
  display:flex;
  gap:8px
}

.validation-grid li:before {
  content:"·";
  color:var(--forest);
  font-weight:700
}

.validation-mark {
  font-size:10px;
  color:var(--muted)
}

.validation-statement {
  font-size:25px;
  line-height:1.5;
  letter-spacing:-.025em;
  margin-top:36px
}

.validation-statement span {
  color:var(--muted)
}

.contribution-section {
  border-block:1px solid var(--line);
  background:#fff
}

.contribution-layout {
  display:grid;
  grid-template-columns:.9fr 1.1fr;
  gap:110px
}

.contribution-layout>.section-intro {
  max-width:440px
}

.contribution-layout .source-link {
  margin-top:24px
}

.contribution-timeline>article {
  display:grid;
  grid-template-columns:62px 1fr;
  gap:24px;
  padding:29px 0;
  border-top:1px solid var(--line)
}

.contribution-timeline>article>span {
  font-size:13px;
  color:var(--muted)
}

.contribution-timeline h3 {
  font-size:19px;
  font-weight:500;
  letter-spacing:-.025em;
  margin-bottom:12px
}

.contribution-timeline p {
  font-size:13px;
  color:var(--muted);
  line-height:1.75
}

.authorship-note {
  padding:24px 27px;
  background:var(--soft);
  margin-top:12px
}

.authorship-note>strong {
  font-size:12px;
  font-weight:600
}

.authorship-note p {
  font-size:11px;
  margin-top:8px
}

.next-layout {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:110px
}

.lesson {
  padding:29px 32px;
  background:var(--soft);
  align-self:start
}

.lesson h3 {
  font-size:27px;
  font-weight:500;
  letter-spacing:-.04em;
  line-height:1.35;
  margin:20px 0
}

.lesson p {
  font-size:13px;
  color:var(--muted);
  line-height:1.75
}

.next-steps {
  list-style:none
}

.next-steps li {
  display:flex;
  gap:25px;
  border-top:1px solid var(--line);
  padding:23px 0
}

.next-steps li>span {
  font-size:11px;
  color:var(--muted);
  padding-top:3px
}

.next-steps h3 {
  font-size:18px;
  line-height:1.4;
  font-weight:500;
  margin-bottom:10px;
  letter-spacing:-.02em
}

.next-steps p {
  font-size:12px;
  color:var(--muted);
  line-height:1.7
}

.closing {
  padding:75px 0 85px;
  border-top:1px solid var(--line);
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:12px 50px;
  align-items:center
}

.closing>.eyebrow {
  grid-column:1/-1
}

.closing h2 {
  margin-top:10px;
  font-size:52px
}

.closing>div {
  display:flex;
  gap:16px;
  justify-content:flex-end;
  flex-wrap:wrap
}

.closing>p:last-child {
  font-size:11px;
  color:var(--muted);
  grid-column:2;
  margin-top:4px;
  text-align:right
}

.site-footer {
  display:flex;
  justify-content:space-between;
  gap:50px;
  padding:32px 0 42px;
  border-top:1px solid var(--line)
}

.site-footer p {
  font-size:10px;
  line-height:1.8;
  color:var(--muted);
  margin-top:14px
}

.site-footer nav {
  display:flex;
  gap:27px;
  font-size:11px;
  align-items:start;
  padding-top:7px
}

.site-footer nav a:hover {
  text-decoration:underline;
  text-underline-offset:5px
}

dialog {
  border:1px solid var(--line);
  color:var(--ink);
  background:var(--paper);
  padding:20px;
  width:min(1240px,94vw);
  max-height:92vh;
  overscroll-behavior:contain
}

dialog::backdrop {
  background:#182b25d9
}

dialog form {
  position:sticky;
  top:0;
  display:flex;
  justify-content:flex-end;
  z-index:1;
  pointer-events:none
}

.dialog-close {
  pointer-events:auto;
  padding:10px 15px;
  border:1px solid var(--line);
  background:var(--paper);
  font-size:12px;
  display:flex;
  gap:25px;
  align-items:center
}

.dialog-close span {
  font-size:20px;
  line-height:1
}

.dialog-close:hover {
  background:var(--soft)
}

#image-caption {
  font-size:12px;
  color:var(--muted);
  margin:12px 0 20px;
  max-width:850px
}

#expanded-image {
  width:100%;
  height:auto
}

@media(min-width:1550px) {
  .hero-shot img {
    height:475px
  }
}

@media(max-width:1190px) {
  .site-header nav {
    gap:17px
  }
  .hero {
    gap:35px
  }
  .hero h1 {
    font-size:61px
  }
  .hero-shot img {
    height:420px
  }
  .hero-actions {
    gap:15px
  }
  .proof-strip>div {
    gap:12px;
    padding-inline:15px
  }
  .proof-strip strong {
    font-size:29px
  }
  .proof-strip .proof-outcome {
    padding-left:20px
  }
  .research-layout {
    gap:65px
  }
  .research-methods>div {
    grid-template-columns:27px 85px 1fr;
    gap:13px
  }
  .challenge-layout,.contribution-layout,.next-layout {
    gap:65px
  }
  .decision-layout,.analytics-layout,.product-scenario {
    gap:40px
  }
  .decision-panel {
    padding:30px
  }
  .reasoning-chain li {
    grid-template-columns:110px 1fr;
    gap:15px
  }
  .artifact-caption {
    gap:35px
  }
  .journey-stages li {
    padding:22px 15px
  }
  .screen-label {
    font-size:9px
  }
  .proof-strip small {
    font-size:9px
  }
}

@media(max-width:960px) {
  .wrap {
    width:calc(100% - 56px)
  }
  .site-header {
    padding-inline:28px;
    height:68px
  }
  .site-header nav {
    gap:16px
  }
  .site-header .wordmark span {
    display:none
  }
  .site-header nav>a {
    font-size:11px
  }
  .hero {
    padding-top:58px;
    gap:30px;
    grid-template-columns:.9fr 1.1fr
  }
  .hero h1 {
    font-size:51px
  }
  .hero-intro {
    font-size:16px
  }
  .hero-actions {
    gap:12px
  }
  .button {
    padding:12px 14px;
    font-size:11px;
    gap:12px
  }
  .hero-shot img {
    height:375px
  }
  .project-meta>div {
    font-size:10px;
    grid-template-columns:63px 1fr
  }
  .hero-principle p {
    font-size:14px
  }
  .proof-strip {
    grid-template-columns:1fr 1fr 1fr
  }
  .proof-strip .proof-outcome {
    grid-column:1/-1;
    border-top:1px solid var(--line);
    padding:20px 0;
    display:flex;
    align-items:center;
    gap:25px
  }
  .proof-outcome p {
    margin:0
  }
  .proof-outcome p br {
    display:none
  }
  .proof-strip>div:nth-child(3) {
    border-right:0
  }
  .reader-note {
    gap:20px
  }
  .reader-note p {
    font-size:10px
  }
  .section {
    padding-block:85px
  }
  .challenge-layout {
    gap:50px
  }
  .lead {
    font-size:23px
  }
  .research-layout {
    gap:40px;
    grid-template-columns:.6fr 1.4fr
  }
  .research-methods>div {
    grid-template-columns:25px 1fr;
    gap:10px
  }
  .research-methods p {
    grid-column:2
  }
  .research-number strong {
    font-size:88px
  }
  .research-number strong span {
    font-size:18px
  }
  .research-themes>div>span {
    font-size:13px;
    padding:18px
  }
  .decision-layout {
    grid-template-columns:.65fr 1.35fr;
    gap:25px
  }
  .decision-selectors button {
    padding:24px 12px;
    grid-template-columns:20px 1fr 12px;
    gap:3px 7px
  }
  .decision-selectors button strong {
    font-size:15px
  }
  .decision-selectors button small {
    font-size:10px
  }
  .decision-panel {
    padding:27px
  }
  .reasoning-chain li {
    grid-template-columns:1fr;
    gap:6px
  }
  .reasoning-chain li p {
    font-size:12px
  }
  .decision-panel h3 {
    font-size:26px
  }
  .artifact-caption h3 {
    font-size:21px
  }
  .journey-stages {
    grid-template-columns:repeat(5,1fr)
  }
  .journey-stages h4 {
    font-size:14px
  }
  .journey-stages li {
    padding:18px 11px
  }
  .journey-stages p,.journey-stages small {
    font-size:9px
  }
  .system-layout {
    grid-template-columns:1fr
  }
  .data-outline dl {
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:25px
  }
  .product-scenario {
    gap:35px;
    grid-template-columns:.9fr 1.1fr
  }
  .product-scenario h3 {
    font-size:27px
  }
  .analytics-layout {
    gap:35px;
    grid-template-columns:.9fr 1.1fr
  }
  .analytics-image .screenshot img {
    aspect-ratio:.9
  }
  .validation-grid article {
    padding-right:23px
  }
  .validation-grid article+article {
    padding-left:23px
  }
  .validation-grid h3 {
    font-size:20px
  }
  .contribution-layout,.next-layout {
    gap:50px
  }
  .contribution-timeline>article {
    grid-template-columns:42px 1fr;
    gap:15px
  }
  .contribution-timeline p {
    font-size:12px
  }
  .closing h2 {
    font-size:42px
  }
}

@media(max-width:760px) {
  html {
    scroll-padding-top:84px
  }
  .site-header .wordmark span {
    display:block
  }
  .menu-toggle {
    display:flex;
    align-items:center;
    gap:20px;
    background:none;
    border:0;
    padding:10px 0;
    font-size:12px
  }
  .menu-toggle span {
    font-size:20px
  }
  .site-header nav {
    display:none;
    position:absolute;
    top:67px;
    left:0;
    right:0;
    background:var(--paper);
    padding:20px 28px 28px;
    border-bottom:1px solid var(--line);
    flex-direction:column;
    align-items:stretch;
    gap:1px;
    box-shadow:0 20px 30px -30px #1b302850
  }
  .site-header nav>a {
    font-size:14px;
    padding:11px 0
  }
  .site-header nav>a:not(.nav-demo)::after {
    display:none
  }
  .menu-open .site-header nav {
    display:flex
  }
  .menu-open .menu-toggle span {
    transform:rotate(45deg)
  }
  .nav-demo {
    margin:12px 0 0;
    align-self:start
  }
  .hero {
    grid-template-columns:1fr;
    padding-top:53px;
    padding-bottom:50px;
    gap:40px
  }
  .hero-copy {
    max-width:590px
  }
  .hero h1 {
    font-size:clamp(48px,8.5vw,65px);
    letter-spacing:-.06em;
    line-height:1.05;
    margin-top:22px
  }
  .hero h1 br:nth-of-type(2) {
    display:none
  }
  .hero-intro {
    max-width:430px;
    font-size:18px
  }
  .hero-actions {
    gap:22px;
    margin:25px 0 28px
  }
  .hero-actions .button {
    font-size:12px;
    padding:14px 19px
  }
  .project-meta {
    max-width:520px
  }
  .project-meta>div {
    font-size:11px;
    grid-template-columns:73px 1fr
  }
  .hero-product {
    width:100%;
    max-width:660px
  }
  .hero-shot img {
    height:390px
  }
  .screen-label {
    font-size:10px
  }
  .hero-principle {
    display:none
  }
  .proof-strip strong {
    font-size:27px
  }
  .proof-strip>div {
    padding:24px 13px;
    display:block
  }
  .proof-strip>div>span {
    display:block;
    margin-top:10px;
    font-size:11px
  }
  .proof-strip small {
    font-size:9px
  }
  .proof-strip .proof-outcome {
    display:block;
    padding:20px 0
  }
  .proof-strip .proof-outcome .mini-label {
    margin:0
  }
  .proof-outcome p {
    margin-top:6px;
    font-size:12px
  }
  .reader-note {
    flex-wrap:wrap;
    gap:8px 20px;
    align-items:start;
    font-size:10px
  }
  .reader-note p {
    flex-basis:100%;
    order:3;
    font-size:11px;
    max-width:470px
  }
  .reader-note a {
    font-size:10px
  }
  .section {
    padding-block:70px
  }
  .section-head {
    margin-bottom:32px
  }
  .section-head h2,.contribution-layout h2 {
    font-size:42px;
    letter-spacing:-.055em
  }
  .section-intro {
    font-size:15px
  }
  .challenge-layout,.research-layout,.contribution-layout,.next-layout {
    grid-template-columns:1fr;
    gap:34px
  }
  .challenge-layout .lead {
    font-size:24px;
    max-width:560px
  }
  .challenge-lines>div:first-child {
    border-top:1px solid var(--line);
    padding-top:20px
  }
  .scope-line {
    flex-wrap:wrap;
    gap:10px 18px;
    margin-top:24px
  }
  .scope-line p {
    flex:1;
    min-width:200px;
    font-size:11px
  }
  .scope-line .source-link {
    flex-basis:100%;
    margin-left:0
  }
  .research-number strong {
    font-size:85px;
    display:flex;
    align-items:center;
    gap:28px
  }
  .research-number strong span {
    margin:0;
    font-size:22px
  }
  .research-number p {
    margin:19px 0 7px
  }
  .research-methods>div {
    grid-template-columns:30px 110px 1fr;
    gap:15px
  }
  .research-methods p {
    grid-column:auto;
    font-size:12px
  }
  .research-themes {
    margin-top:30px
  }
  .research-themes>div {
    grid-template-columns:1fr 1fr
  }
  .research-themes>div>span {
    padding:16px 0;
    font-size:13px
  }
  .research-themes>div>span:nth-child(2) {
    border-right:0;
    padding-left:17px
  }
  .research-themes>div>span:nth-child(3) {
    border-top:1px solid #c9d3c4
  }
  .research-themes>div>span:nth-child(4) {
    border-top:1px solid #c9d3c4;
    padding-left:17px
  }
  .historical-metrics {
    gap:25px
  }
  .historical-metrics strong {
    font-size:29px
  }
  .historical-metrics p {
    font-size:11px
  }
  .decision-layout {
    grid-template-columns:1fr;
    gap:25px
  }
  .decision-selectors {
    display:grid;
    grid-template-columns:1fr 1fr
  }
  .decision-selectors button {
    padding:18px 13px
  }
  .decision-selectors button:nth-child(odd) {
    border-right:1px solid var(--line)
  }
  .decision-panel {
    padding:30px
  }
  .decision-panel h3 {
    font-size:28px
  }
  .reasoning-chain li {
    grid-template-columns:115px 1fr;
    gap:15px
  }
  .tab-bar {
    gap:25px;
    flex-wrap:nowrap;
    overflow-x:auto;
    max-width:100%;
    padding:5px 5px 0;
    margin-left:-5px;
    margin-right:-5px;
    scrollbar-width:thin
  }
  .tab-bar button {
    font-size:11px;
    padding-bottom:15px
  }
  .artifact-caption {
    display:block
  }
  .artifact-caption h3 {
    font-size:24px;
    max-width:550px;
    margin-bottom:15px
  }
  .artifact-caption p {
    max-width:520px;
    font-size:13px
  }
  .journey-stages {
    grid-template-columns:1fr;
    max-width:100%
  }
  .journey-stages li {
    display:grid;
    grid-template-columns:25px 1fr 1fr;
    gap:8px 15px;
    padding:17px 18px;
    border-right:0;
    border-bottom:1px solid var(--line);
    align-items:baseline
  }
  .journey-stages h4 {
    font-size:15px;
    margin:0
  }
  .journey-stages p {
    font-size:11px
  }
  .journey-stages small {
    font-size:10px;
    margin:0;
    grid-column:2/-1
  }
  .artifact-takeaway {
    grid-template-columns:1fr;
    gap:9px;
    padding-top:20px
  }
  .process-comparison>div {
    padding:22px
  }
  .process-comparison ol {
    font-size:12px
  }
  .product-scenario {
    grid-template-columns:1fr;
    gap:30px
  }
  .product-scenario h3 {
    font-size:32px
  }
  .compact-steps {
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:20px
  }
  .compact-steps li {
    display:block;
    padding:15px 0 0
  }
  .compact-steps li>span {
    display:block;
    margin-bottom:10px
  }
  .compact-steps strong {
    font-size:13px
  }
  .compact-steps p {
    font-size:11px
  }
  .product-image .screenshot img {
    aspect-ratio:1.3
  }
  .product-boundary {
    grid-template-columns:1fr;
    gap:10px;
    margin-top:25px
  }
  .synthetic-note {
    flex-wrap:wrap;
    gap:6px 12px;
    align-items:start
  }
  .synthetic-note>.status-dot {
    margin-top:6px
  }
  .synthetic-note>span:last-child {
    flex-basis:100%;
    line-height:1.7
  }
  .analytics-layout {
    grid-template-columns:1fr;
    gap:30px
  }
  .metric-selector {
    display:grid;
    grid-template-columns:1fr 1fr
  }
  .metric-selector button:nth-child(odd) {
    border-right:1px solid #c9d3c4
  }
  .metric-selector button>span {
    font-size:11px
  }
  .metric-selector button strong {
    font-size:23px
  }
  .metric-detail {
    min-height:0;
    margin:23px 0 0;
    max-width:550px
  }
  .analytics-image .screenshot img {
    aspect-ratio:1.15
  }
  .measurement-principle {
    grid-template-columns:1fr;
    gap:9px;
    margin-top:26px
  }
  .measurement-principle p {
    font-size:15px
  }
  .validation-grid {
    grid-template-columns:1fr
  }
  .validation-grid article,.validation-grid article+article {
    padding:25px 0;
    border-right:0;
    border-bottom:1px solid var(--line);
    display:grid;
    grid-template-columns:1fr 1.4fr;
    gap:0 28px
  }
  .validation-grid article:last-child {
    border-bottom:0
  }
  .validation-grid .mini-label {
    grid-column:1/-1;
    margin-bottom:12px
  }
  .validation-grid h3 {
    margin:0;
    font-size:22px;
    grid-row:span 2
  }
  .validation-grid ul {
    margin-bottom:15px
  }
  .validation-grid .source-link,.validation-mark {
    grid-column:2
  }
  .validation-statement {
    font-size:22px
  }
  .contribution-timeline>article {
    grid-template-columns:55px 1fr;
    gap:20px
  }
  .authorship-note {
    padding:20px 25px
  }
  .next-layout {
    gap:28px
  }
  .lesson h3 {
    font-size:27px
  }
  .next-steps li {
    padding:21px 0
  }
  .closing {
    padding-block:60px;
    grid-template-columns:1fr;
    gap:15px
  }
  .closing h2 {
    font-size:45px
  }
  .closing>div {
    justify-content:flex-start;
    margin-top:10px
  }
  .closing>p:last-child {
    grid-column:1;
    text-align:left;
    max-width:420px
  }
  .site-footer {
    flex-direction:column;
    gap:24px;
    padding:29px 0 35px
  }
  .site-footer nav {
    gap:30px
  }
  .site-footer p {
    font-size:10px
  }
  dialog {
    padding:15px
  }
  #image-caption {
    font-size:11px
  }
}

@media(max-width:430px) {
  .wrap {
    width:calc(100% - 40px)
  }
  .site-header {
    padding-inline:20px
  }
  .site-header nav {
    padding-inline:20px
  }
  .hero {
    padding-top:42px;
    gap:32px
  }
  .hero h1 {
    font-size:46px;
    letter-spacing:-.06em
  }
  .hero h1 br:nth-of-type(2) {
    display:block
  }
  .hero-intro {
    font-size:17px
  }
  .hero-actions {
    gap:15px
  }
  .hero-actions .button {
    font-size:11px;
    gap:12px;
    padding:13px 15px
  }
  .hero-actions .text-link {
    font-size:11px
  }
  .hero-shot img {
    height:275px
  }
  .browser-bar {
    height:26px
  }
  .screen-label .tag {
    font-size:9px;
    padding:4px 6px
  }
  .screen-label {
    font-size:9px
  }
  .proof-strip {
    grid-template-columns:1fr 1fr
  }
  .proof-strip>div {
    padding:22px 10px
  }
  .proof-strip>div:nth-child(2) {
    border-right:0
  }
  .proof-strip>div:nth-child(3) {
    border-top:1px solid var(--line);
    border-right:1px solid var(--line);
    padding-left:0
  }
  .proof-strip .proof-outcome {
    grid-column:auto;
    padding:22px 0 22px 16px
  }
  .proof-outcome .mini-label {
    font-size:9px;
    line-height:1.6
  }
  .proof-outcome p {
    font-size:11px;
    margin-top:8px
  }
  .reader-note>span {
    font-size:10px
  }
  .reader-note a {
    font-size:10px
  }
  .section {
    padding-block:60px
  }
  .section-head h2,.contribution-layout h2 {
    font-size:36px
  }
  .section-head h2 br {
    display:none
  }
  .eyebrow {
    font-size:10px;
    letter-spacing:.09em
  }
  .lead {
    font-size:22px!important
  }
  .section-intro {
    font-size:14px
  }
  .challenge-lines p {
    font-size:12px
  }
  .research-number strong {
    font-size:82px;
    gap:24px
  }
  .research-number strong span {
    font-size:20px
  }
  .research-methods>div {
    grid-template-columns:24px 1fr;
    gap:8px 13px;
    padding:20px 0
  }
  .research-methods h3 {
    font-size:22px
  }
  .research-methods p {
    grid-column:2
  }
  .research-themes .mini-label {
    font-size:9px
  }
  .historical-metrics {
    grid-template-columns:1fr;
    gap:20px
  }
  .historical-metrics>div {
    border-top:1px solid #c9d3c4;
    padding-top:16px
  }
  .historical-metrics p {
    max-width:100%
  }
  .historical-metrics strong {
    font-size:33px;
    margin:5px 0
  }
  .evidence-details summary {
    font-size:11px
  }
  .decision-selectors button {
    grid-template-columns:18px 1fr;
    gap:4px;
    padding:17px 9px
  }
  .decision-selectors button strong {
    font-size:14px
  }
  .decision-selectors button small {
    font-size:10px
  }
  .decision-selectors button b {
    display:none
  }
  .decision-panel {
    padding:25px 22px
  }
  .reasoning-chain li {
    grid-template-columns:1fr;
    gap:6px;
    padding:13px 0
  }
  .reasoning-chain li>span {
    font-size:10px
  }
  .reasoning-chain li p {
    font-size:12px
  }
  .decision-panel h3 {
    font-size:26px
  }
  .tab-bar {
    gap:23px
  }
  .artifact-caption h3 {
    font-size:22px
  }
  .journey-stages li {
    grid-template-columns:20px 1fr;
    gap:6px 12px
  }
  .journey-stages p {
    grid-column:2
  }
  .journey-stages small {
    grid-column:2
  }
  .process-comparison {
    grid-template-columns:1fr
  }
  .process-comparison>div+div {
    border-left:0;
    border-top:1px solid var(--line)
  }
  .data-outline dl {
    grid-template-columns:1fr;
    gap:0
  }
  .artifact-takeaway p {
    font-size:12px
  }
  .adjacent-link {
    margin-left:16px
  }
  .compact-steps {
    grid-template-columns:1fr;
    gap:0
  }
  .compact-steps li {
    display:flex;
    gap:13px;
    padding:15px 0
  }
  .compact-steps li>span {
    margin:0
  }
  .compact-steps strong {
    font-size:14px
  }
  .compact-steps p {
    font-size:12px
  }
  .product-scenario h3 {
    font-size:29px
  }
  .staff-copy .tag,.guest-scenario .tag {
    font-size:9px
  }
  .guest-flow>li {
    padding:18px 15px;
    gap:18px
  }
  .guest-flow p {
    font-size:12px
  }
  .metric-selector {
    grid-template-columns:1fr
  }
  .metric-selector button:nth-child(odd) {
    border-right:0
  }
  .metric-selector button {
    min-height:54px
  }
  .metric-selector button>span {
    font-size:12px
  }
  .analytics-image .screenshot img {
    aspect-ratio:1
  }
  .validation-grid article,.validation-grid article+article {
    display:block
  }
  .validation-grid h3 {
    margin:9px 0 14px;
    font-size:25px
  }
  .validation-grid li {
    font-size:12px
  }
  .validation-grid ul {
    margin-bottom:15px
  }
  .validation-statement {
    font-size:21px
  }
  .contribution-timeline>article {
    grid-template-columns:43px 1fr;
    gap:15px
  }
  .contribution-timeline h3 {
    font-size:18px
  }
  .lesson {
    padding:26px 24px
  }
  .lesson h3 {
    font-size:25px
  }
  .closing h2 {
    font-size:38px
  }
  .closing>div {
    gap:12px
  }
  .closing .button {
    font-size:11px;
    gap:12px
  }
  .source-note {
    font-size:10px
  }
  .hero-product figcaption {
    font-size:10px
  }
}

@media(prefers-reduced-motion:reduce) {
  html {
    scroll-behavior:auto
  }
  *,*::before,*::after {
    transition:none!important;
    animation:none!important
  }
  .button:hover {
    transform:none
  }
}

@media(max-width:430px) {
  .research-number strong {
    font-size:72px;
    gap:22px
  }
  .research-number strong span {
    font-size:18px
  }
}

@media print {
  .site-header,.reader-note,.hero-actions,.zoom-hint,.menu-toggle,.closing,.site-footer nav {
    display:none
  }
  .wrap {
    width:100%
  }
  .hero,.section {
    padding:25px 0
  }
  body {
    font-size:12px;
    background:white
  }
  .hero h1 {
    font-size:44px
  }
  .section h2 {
    font-size:30px
  }
  .screenshot {
    border:1px solid #aaa
  }
  a {
    color:#000;
    text-decoration:underline
  }
  .decision-panel {
    background:#eee;
    color:#000
  }
  .decision-panel .mini-label,.reasoning-chain li>span,.decision-boundary,.reasoning-chain .implemented p,.decision-panel .source-link {
    color:#000
  }
  .section {
    break-inside:avoid
  }
}