:root {
  --color-red: #b51700;
  --color-ink: #111111;
  --color-grey: #666666;
  --color-rule: #d4d4d2;
  --color-soft: #f2f2f0;
  --color-paper: #ffffff;
  --color-error: #8f1200;
  --font-display: "Inter", Helvetica, Arial, sans-serif;
  --font-body: "Inter", Helvetica, Arial, sans-serif;
  --page-pad: clamp(1.4rem, 4.2vw, 4.75rem);
  --content-max: 90rem;
  --header-height: 6.25rem;
}
*,
*:before,
*:after {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 1rem);
  -webkit-text-size-adjust: 100%;
}
body {
  min-width: 20rem;
  margin: 0;
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
}
h1,
h2,
h3,
h4,
p,
ul,
ol {
  margin: 0;
}
ul,
ol {
  padding: 0;
  list-style: none;
}
a {
  color: inherit;
  text-decoration: none;
}
button,
input,
textarea,
select {
  font: inherit;
}
button {
  cursor: pointer;
}
.skip-link {
  position: fixed;
  top: 0.5rem;
  left: 0.5rem;
  z-index: 200;
  padding: 0.7rem 1rem;
  background: var(--color-ink);
  color: var(--color-paper);
  transform: translateY(-150%);
}
.skip-link:focus {
  transform: translateY(0);
}
:focus-visible {
  outline: 2px solid var(--color-red);
  outline-offset: 4px;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  border-bottom: 1px solid
    color-mix(in srgb, var(--color-rule) 80%, transparent);
  background: color-mix(in srgb, var(--color-paper) 96%, transparent);
  backdrop-filter: blur(10px);
}
.site-header-inner {
  display: flex;
  width: min(calc(100% - (2 * var(--page-pad))), var(--content-max));
  height: 100%;
  align-items: center;
  justify-content: space-between;
  margin-inline: auto;
}
.site-mark {
  color: var(--color-red);
  font-family: var(--font-display);
  font-size: clamp(2.75rem, 4vw, 3.75rem);
  font-weight: 700;
  letter-spacing: -0.08em;
  line-height: 1;
}
.primary-navigation {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2.2vw, 2.5rem);
}
.primary-navigation a {
  position: relative;
  padding-block: 0.8rem;
  font-size: clamp(0.72rem, 0.9vw, 0.88rem);
  font-weight: 500;
  white-space: nowrap;
}
.primary-navigation a:after {
  position: absolute;
  right: 0;
  bottom: 0.25rem;
  left: 0;
  height: 2px;
  background: var(--color-red);
  content: "";
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.16s ease;
}
.primary-navigation a:hover:after,
.primary-navigation a:focus-visible:after,
.primary-navigation a[aria-current="page"]:after {
  transform: scaleX(1);
}
.primary-navigation .contact-link {
  color: var(--color-red);
}
.menu-toggle {
  display: none;
  border: 0;
  padding: 0.75rem 0;
  background: transparent;
  color: var(--color-ink);
  font-size: 0.86rem;
  font-weight: 600;
}
.editorial-page {
  overflow: clip;
}
.story-section {
  display: flex;
  min-height: calc(100svh - var(--header-height));
  flex-direction: column;
  background: var(--color-paper);
}
.story-section:nth-child(2n) {
  background: color-mix(in srgb, var(--color-soft) 24%, var(--color-paper));
}
.editorial-page--variable-rhythm .story-section:not(:first-child) {
  min-height: clamp(38rem, 72svh, 45rem);
}
.editorial-page--variable-rhythm .story-section:not(:first-child) .story-inner {
  padding-block: clamp(4rem, 8vh, 5.5rem);
}
.story-inner {
  display: flex;
  width: min(calc(100% - (2 * var(--page-pad))), var(--content-max));
  flex: 1;
  flex-direction: column;
  justify-content: center;
  margin-inline: auto;
  padding-block: clamp(3rem, 7vh, 6.5rem);
}
.story-inner--top {
  justify-content: flex-start;
}
.section-kicker {
  margin-bottom: clamp(1.35rem, 2.5vh, 2.25rem);
  color: var(--color-red);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.015em;
  text-transform: uppercase;
}
.display-title,
.section-title {
  max-width: 78rem;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.045em;
  line-height: 0.98;
  text-wrap: balance;
}
.display-title {
  font-size: clamp(3.6rem, 6.2vw, 6.4rem);
}
.section-title {
  font-size: clamp(2.65rem, 5.1vw, 5.4rem);
}
.section-title--medium {
  font-size: clamp(2.35rem, 4.2vw, 4.5rem);
}
.red-text {
  color: var(--color-red);
}
.section-lede {
  max-width: 67rem;
  margin-top: clamp(1.5rem, 3vh, 2.75rem);
  color: var(--color-grey);
  font-size: clamp(1.15rem, 1.65vw, 1.65rem);
  line-height: 1.35;
}
.section-lede--dark {
  color: var(--color-ink);
}
.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: clamp(2rem, 4vh, 3.5rem);
}
.button-primary,
.button-secondary,
.text-link {
  display: inline-flex;
  min-height: 3rem;
  align-items: center;
  justify-content: space-between;
  gap: 1.75rem;
  padding: 0.8rem 1.15rem;
  border: 1px solid var(--color-red);
  font-size: 0.86rem;
  font-weight: 700;
  transition:
    background-color 0.16s ease,
    color 0.16s ease,
    border-color 0.16s ease;
}
.button-primary {
  background: var(--color-red);
  color: var(--color-paper);
}
.button-secondary {
  border-color: var(--color-ink);
  background: transparent;
  color: var(--color-ink);
}
.text-link {
  min-height: auto;
  border: 0;
  padding: 0;
  color: var(--color-red);
}
.button-primary:hover,
.button-primary:focus-visible {
  background: var(--color-ink);
  border-color: var(--color-ink);
}
.button-secondary:hover,
.button-secondary:focus-visible {
  border-color: var(--color-red);
  color: var(--color-red);
}
.hero-layout,
.split-hero,
.lab-hero-grid,
.about-intro,
.featured-thinking {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(18rem, 0.7fr);
  gap: clamp(3rem, 8vw, 9rem);
  align-items: center;
}
.hero-layout {
  grid-template-columns: minmax(0, 1.7fr) minmax(17rem, 0.6fr);
  gap: clamp(3rem, 5vw, 6rem);
}
.contribution-model {
  align-self: center;
  padding-top: 1rem;
}
.model-labels {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  border-top: 3px solid var(--color-red);
  padding-top: 1rem;
  color: var(--color-grey);
  font-size: 0.73rem;
  font-weight: 700;
  text-align: center;
  text-transform: uppercase;
}
.model-value {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 2rem;
  font-size: 1.5rem;
  font-weight: 700;
}
.model-value:after {
  height: 1px;
  flex: 1;
  background: var(--color-rule);
  content: "";
}
.model-dot {
  width: 0.85rem;
  height: 0.85rem;
  border-radius: 50%;
  background: var(--color-red);
}
.evidence-row,
.three-column,
.comparison-grid,
.candidate-grid,
.dimension-grid,
.thinking-grid,
.stats-grid {
  display: grid;
  gap: 0;
  margin-top: clamp(3rem, 8vh, 7rem);
  border-top: 1px solid var(--color-rule);
}
.evidence-row {
  grid-template-columns: 1fr 1fr 1.15fr;
}
.evidence-row > div,
.three-column > article,
.comparison-grid > article,
.dimension-grid > article,
.thinking-grid > article {
  min-width: 0;
  padding: clamp(1.5rem, 3vw, 2.75rem) clamp(1rem, 2vw, 2rem) 1.5rem 0;
}
.evidence-row strong {
  font-size: clamp(1.35rem, 2.2vw, 2.25rem);
  letter-spacing: -0.025em;
  line-height: 1.1;
}
.evidence-row .evidence-emphasis {
  color: var(--color-red);
}
.evidence-row p {
  color: var(--color-grey);
  font-size: 0.92rem;
}
.evidence-note {
  margin-top: 2rem;
  color: var(--color-grey);
  font-size: 0.73rem;
}
.three-column {
  grid-template-columns: repeat(3, 1fr);
}
.three-column > article + article,
.comparison-grid > article + article {
  border-left: 1px solid var(--color-rule);
  padding-left: clamp(1rem, 2.5vw, 2.5rem);
}
.item-number,
.question-number {
  display: block;
  margin-bottom: 1.5rem;
  color: var(--color-red);
  font-size: 0.82rem;
  font-weight: 700;
}
.three-column h3,
.comparison-grid h3,
.dimension-grid h3,
.thinking-grid h3 {
  font-size: clamp(1.55rem, 2.2vw, 2.35rem);
  letter-spacing: -0.035em;
  line-height: 1.05;
}
.three-column h4 {
  margin-top: 1.6rem;
  font-size: 1rem;
}
.three-column p,
.comparison-grid p,
.dimension-grid p,
.thinking-grid p {
  margin-top: 1.35rem;
  color: var(--color-grey);
}
.method-grid {
  margin-top: clamp(3rem, 6vh, 5rem);
}
.method-grid .method-label,
.dimension-label,
.thinking-label {
  display: block;
  margin-bottom: 1.15rem;
  color: var(--color-red);
  font-size: 0.74rem;
  font-weight: 700;
  text-transform: uppercase;
}
.five-step-grid,
.flow-grid,
.lineage-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: clamp(1rem, 2vw, 2.25rem);
  margin-top: clamp(3rem, 6vh, 5rem);
}
.step-card,
.flow-card,
.lineage-card {
  position: relative;
  border-top: 1px solid var(--color-rule);
  padding-top: 1.2rem;
}
.step-card h3,
.flow-card h3,
.lineage-card h3 {
  margin-top: 1rem;
  font-size: clamp(1.2rem, 1.8vw, 1.8rem);
  letter-spacing: -0.025em;
}
.step-card p,
.flow-card p,
.lineage-card p {
  margin-top: 1.25rem;
  color: var(--color-grey);
  font-size: 0.9rem;
}
.stats-grid {
  grid-template-columns: repeat(4, 1fr);
  border-top: 0;
  gap: clamp(1.5rem, 3vw, 3.5rem);
}
.stat-value {
  display: block;
  border-bottom: 2px solid var(--color-red);
  padding-bottom: 0.55rem;
  font-size: clamp(2.5rem, 4.5vw, 4.75rem);
  font-weight: 700;
  letter-spacing: -0.06em;
  line-height: 1;
}
.stat-label {
  display: block;
  margin-top: 0.8rem;
  color: var(--color-grey);
  font-size: 0.88rem;
}
.unit-analysis {
  align-self: center;
  border-top: 3px solid var(--color-red);
  padding-top: 1.2rem;
  text-align: right;
}
.unit-analysis span {
  display: block;
  color: var(--color-grey);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}
.unit-analysis strong {
  display: block;
  margin-top: 3rem;
  font-size: clamp(2rem, 3.3vw, 3.5rem);
  line-height: 1.02;
}
.value-chain {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(3rem, 5vw, 5.5rem);
  margin-top: clamp(3rem, 7vh, 5.5rem);
}
.value-node {
  position: relative;
  min-height: clamp(11rem, 17vw, 14rem);
  border-top: 1px solid var(--color-rule);
  padding: 1.2rem clamp(0.25rem, 1vw, 1rem) 2rem 0;
}
.value-node:not(:last-child):after {
  position: absolute;
  top: 50%;
  right: calc(-1 * clamp(1.5rem, 2.7vw, 2.9rem));
  display: grid;
  width: 2.3rem;
  height: 2.3rem;
  place-items: center;
  border: 1px solid var(--color-red);
  border-radius: 50%;
  background: var(--color-paper);
  color: var(--color-red);
  content: "→";
  font-size: 1rem;
  transform: translate(50%, -50%);
}
.value-node h3 {
  max-width: 19ch;
  margin-top: clamp(2.25rem, 4vw, 3.5rem);
  font-size: clamp(1.65rem, 2.05vw, 2.25rem);
  letter-spacing: -0.035em;
  line-height: 1.06;
  text-wrap: balance;
}
.value-destination {
  margin-top: 0;
  border-top: 2px solid var(--color-red);
  padding-top: clamp(1.5rem, 2.5vw, 2.25rem);
}
.value-destination span {
  display: block;
  color: var(--color-red);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}
.value-destination strong {
  display: block;
  max-width: 64rem;
  margin-top: clamp(1rem, 2vw, 1.5rem);
  font-size: clamp(2.25rem, 4vw, 4.25rem);
  letter-spacing: -0.045em;
  line-height: 1;
  text-wrap: balance;
}
.comparison-grid {
  grid-template-columns: 1fr 1fr;
}
.bullet-list {
  display: grid;
  gap: 1rem;
  margin-top: 1.7rem;
  color: var(--color-grey);
}
.bullet-list li,
.prompt-list li,
.candidate-list li {
  position: relative;
  padding-left: 1.5rem;
}
.bullet-list li:before,
.prompt-list li:before,
.candidate-list li:before {
  position: absolute;
  top: 0;
  left: 0;
  color: var(--color-red);
  content: "•";
}
.contribution-timeline {
  position: relative;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  margin-top: clamp(4rem, 10vh, 8rem);
}
.contribution-timeline:before {
  position: absolute;
  top: 0.7rem;
  right: 0;
  left: 0;
  height: 2px;
  background: var(--color-rule);
  content: "";
}
.timeline-node {
  position: relative;
  padding-top: 2.5rem;
  color: var(--color-grey);
  font-size: 0.86rem;
  text-align: center;
}
.timeline-node:before {
  position: absolute;
  top: 0;
  left: 50%;
  z-index: 1;
  width: 1.5rem;
  height: 1.5rem;
  border: 2px solid var(--color-rule);
  border-radius: 50%;
  background: var(--color-paper);
  content: "";
  transform: translate(-50%);
}
.timeline-node.is-human:before {
  border-color: var(--color-red);
  background: var(--color-red);
}
.timeline-node.is-human {
  color: var(--color-ink);
  font-weight: 700;
}
.timeline-reason {
  display: block;
  margin-top: 1.2rem;
  color: var(--color-red);
}
.timeline-conclusion {
  max-width: 64rem;
  margin-top: clamp(3rem, 6vh, 5rem);
  font-size: clamp(1.4rem, 2.6vw, 2.5rem);
  font-weight: 700;
  line-height: 1.15;
}
.question-grid,
.outputs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 clamp(2rem, 5vw, 5rem);
  margin-top: clamp(2.5rem, 6vh, 5rem);
}
.question-row,
.output-row {
  display: grid;
  grid-template-columns: 3rem minmax(7rem, 0.75fr) minmax(0, 1.2fr);
  gap: 1rem;
  align-items: start;
  border-bottom: 1px solid var(--color-rule);
  padding-block: 1.4rem;
}
.question-row strong,
.output-row strong {
  font-size: 1.2rem;
}
.question-row p {
  color: var(--color-grey);
  font-size: 0.92rem;
}
.dimension-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  column-gap: clamp(2rem, 3vw, 4rem);
  align-items: start;
}
.dimension-grid > article {
  padding-right: 0;
}
.site-footer-shell {
  width: min(calc(100% - (2 * var(--page-pad))), var(--content-max));
  margin-inline: auto;
}
.site-footer-cta {
  display: grid;
  min-height: clamp(12rem, 20vw, 18rem);
  grid-template-columns: minmax(0, 2.15fr) minmax(13rem, 0.85fr);
  gap: clamp(2rem, 5vw, 6rem);
  align-items: end;
  border-bottom: 1px solid rgb(255 255 255 / 28%);
  padding-block: clamp(3rem, 6vw, 5.75rem) clamp(2.5rem, 4vw, 3.75rem);
}
.site-footer-cta strong {
  max-width: 62rem;
  font-size: clamp(2.25rem, 4.4vw, 4.75rem);
  letter-spacing: -0.05em;
  line-height: 0.98;
}
.site-footer-cta-link {
  display: inline-flex;
  gap: 0.65rem;
  align-items: center;
  justify-self: end;
  padding-bottom: 0.2rem;
  border-bottom: 1px solid currentColor;
  font-size: 0.86rem;
  font-weight: 700;
  white-space: nowrap;
}
.mini-process {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.3rem;
  align-items: start;
}
.mini-process li {
  position: relative;
  padding-top: 3rem;
  font-size: 0.7rem;
  font-weight: 600;
  text-align: center;
}
.mini-process li:before {
  position: absolute;
  top: 0;
  left: 50%;
  z-index: 1;
  display: grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  border: 1px solid var(--color-rule);
  border-radius: 50%;
  background: var(--color-paper);
  content: attr(data-step);
  transform: translate(-50%);
}
.mini-process li:first-child:before {
  border-color: var(--color-red);
  background: var(--color-red);
  color: var(--color-paper);
}
.mini-process li:not(:last-child):after {
  position: absolute;
  top: 1rem;
  left: calc(50% + 1rem);
  width: calc(100% - 2rem);
  height: 1px;
  background: var(--color-rule);
  content: "";
}
.candidate-grid {
  grid-template-columns: 1fr 1fr;
}
.candidate-grid > div {
  padding: 2rem 2rem 0 0;
}
.candidate-grid > div + div {
  border-left: 1px solid var(--color-rule);
  padding-left: clamp(1.5rem, 3vw, 3rem);
}
.candidate-grid h3 {
  font-size: clamp(1.5rem, 2.4vw, 2.5rem);
}
.candidate-list {
  display: grid;
  gap: 1rem;
  margin-top: 1.75rem;
  color: var(--color-grey);
}
.example-list {
  display: grid;
  gap: 1rem;
  margin-top: 1.75rem;
}
.example-list li {
  display: grid;
  grid-template-columns: 2.5rem 1fr;
  gap: 0.75rem;
  color: var(--color-grey);
}
.example-list span {
  color: var(--color-red);
  font-weight: 700;
}
.word-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  column-gap: clamp(1.5rem, 3vw, 3.5rem);
  row-gap: clamp(1.5rem, 3vw, 2.5rem);
  margin-top: clamp(3rem, 7vh, 5.5rem);
}
.word-grid span {
  display: flex;
  min-width: 0;
  min-height: clamp(4rem, 6vw, 5.75rem);
  align-items: flex-end;
  border-bottom: 1px solid var(--color-rule);
  padding-bottom: clamp(0.8rem, 1.4vw, 1.1rem);
  font-size: clamp(1.85rem, 2.45vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1;
}
.word-grid span:nth-child(9),
.word-grid span:nth-child(10) {
  grid-column: span 2;
}
.word-grid .accent-word {
  color: var(--color-red);
}
.output-row {
  grid-template-columns: 3rem 1fr;
}
.thinking-grid {
  grid-template-columns: 1fr 1fr;
}
.thinking-grid > article:nth-child(2n) {
  padding-left: clamp(1.5rem, 3vw, 3rem);
}
.featured-thinking {
  grid-template-columns: minmax(0, 1.25fr) minmax(19rem, 0.75fr);
  align-items: stretch;
  margin-top: clamp(3rem, 7vh, 6rem);
}
.featured-story h3 {
  margin-top: 1rem;
  font-size: clamp(2.5rem, 5vw, 5.25rem);
  letter-spacing: -0.05em;
  line-height: 0.98;
}
.featured-story p {
  max-width: 50rem;
  margin-top: 2rem;
  color: var(--color-grey);
  font-size: clamp(1.15rem, 1.7vw, 1.55rem);
}
.featured-story .text-link {
  margin-top: 3rem;
}
.thinking-sidebar {
  display: grid;
  border-left: 1px solid var(--color-rule);
  padding-left: clamp(1.5rem, 3vw, 3rem);
}
.thinking-sidebar article {
  border-bottom: 1px solid var(--color-rule);
  padding-block: 1.5rem;
}
.thinking-sidebar article:first-child {
  padding-top: 0;
}
.thinking-sidebar h4 {
  margin-top: 0.8rem;
  font-size: clamp(1.3rem, 2.1vw, 2rem);
  line-height: 1.15;
}
.evidence-brief {
  display: grid;
  gap: 0;
  margin-top: clamp(3rem, 7vh, 6rem);
  border-top: 1px solid var(--color-rule);
}
.brief-row {
  display: grid;
  grid-template-columns: minmax(12rem, 0.35fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 6rem);
  border-bottom: 1px solid var(--color-rule);
  padding-block: 1.75rem;
}
.brief-row span {
  color: var(--color-red);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}
.brief-row strong {
  font-size: clamp(1.45rem, 2.5vw, 2.6rem);
  line-height: 1.12;
}
.field-questions {
  margin-top: clamp(2.5rem, 6vh, 5rem);
}
.field-question {
  display: grid;
  grid-template-columns: 4rem 1fr;
  gap: 1rem;
  border-bottom: 1px solid var(--color-rule);
  padding-block: clamp(1.35rem, 3vh, 2.5rem);
}
.field-question span {
  color: var(--color-red);
  font-size: 1rem;
  font-weight: 700;
}
.field-question strong {
  font-size: clamp(1.55rem, 3vw, 3.2rem);
  letter-spacing: -0.04em;
  line-height: 1.05;
}
.identity-block {
  align-self: end;
  text-align: right;
}
.identity-block strong {
  display: block;
  font-size: clamp(1.8rem, 3vw, 3rem);
}
.identity-details {
  display: flex;
  width: max-content;
  max-width: 100%;
  margin-left: auto;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
}
.identity-details span {
  width: 100%;
  text-align: justify;
  text-align-last: justify;
}
.identity-block span {
  display: block;
  margin-top: 0.3rem;
  color: var(--color-grey);
}
.identity-block em {
  display: block;
  margin-top: 1rem;
  color: var(--color-red);
  font-size: 0.84rem;
  font-style: normal;
  font-weight: 700;
}
.lineage-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(2.75rem, 4vw, 4.5rem);
}
.lineage-card:not(:last-child):after {
  content: none;
}
.lineage-card h3 {
  position: relative;
  height: 2.2em;
  min-height: 2.2em;
  line-height: 1.1;
}
.lineage-card:not(:last-child) h3:after {
  position: absolute;
  top: clamp(0.66rem, 0.99vw, 0.99rem);
  right: calc(-1 * clamp(1.375rem, 2vw, 2.25rem));
  display: none;
  width: 2.3rem;
  height: 2.3rem;
  place-items: center;
  border: 1px solid var(--color-red);
  border-radius: 50%;
  background: var(--color-paper);
  color: var(--color-red);
  content: "→";
  font-size: 1rem;
  line-height: 1;
  transform: translate(50%, -50%);
}
@media (min-width: 64.0625rem) and (hover: hover) and (pointer: fine) {
  .lineage-card:not(:last-child) h3:after {
    display: grid;
  }
}
.capabilities-note {
  max-width: 78rem;
  margin-top: clamp(3rem, 6vh, 5rem);
  color: var(--color-grey);
  font-size: 0.95rem;
}
.principles-list {
  margin-top: clamp(2rem, 4vh, 3rem);
}
.principle {
  display: grid;
  grid-template-columns: 3rem 1fr;
  border-bottom: 1px solid var(--color-rule);
  padding-block: 1.1rem;
}
.principle span {
  color: var(--color-red);
  font-weight: 700;
}
.principle strong {
  font-size: clamp(1.35rem, 2.4vw, 2.5rem);
}
.talk-intro .section-lede {
  max-width: 60rem;
}
.prompt-list {
  display: grid;
  gap: 1.25rem;
  max-width: 62rem;
  margin-top: clamp(2.5rem, 6vh, 5rem);
  color: var(--color-grey);
  font-size: clamp(1rem, 1.5vw, 1.35rem);
}
.site-footer {
  background: var(--color-red);
  color: var(--color-paper);
}
.site-footer-inner {
  display: flex;
  min-height: clamp(10rem, 14vw, 13rem);
  gap: 3rem;
  align-items: flex-end;
  justify-content: space-between;
  padding-block: clamp(2.5rem, 4vw, 4rem);
}
.site-footer-brand {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}
.site-footer-name {
  font-size: clamp(2.6rem, 4.5vw, 5rem);
  font-weight: 700;
  letter-spacing: -0.06em;
  line-height: 0.9;
}
.site-footer p {
  font-size: 0.8rem;
  font-weight: 600;
  opacity: 0.82;
}
.site-footer .site-footer-copyright {
  margin-top: -0.2rem;
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.015em;
  line-height: 1.4;
  opacity: 0.58;
}
.site-footer-link {
  display: inline-flex;
  gap: 0.55rem;
  align-items: center;
  padding-bottom: 0.2rem;
  font-size: 0.85rem;
  font-weight: 700;
  border-bottom: 1px solid currentColor;
}
@media (max-width: 64rem) {
  :root {
    --header-height: 5.5rem;
  }
  .primary-navigation {
    gap: 1rem;
  }
  .primary-navigation a {
    font-size: 0.7rem;
  }
  .five-step-grid,
  .flow-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .lineage-grid,
  .dimension-grid,
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .lineage-card h3:after {
    display: none;
  }
  .word-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .word-grid span:nth-child(9),
  .word-grid span:nth-child(10) {
    grid-column: span 1;
  }
}
@media (max-width: 47.5rem) {
  :root {
    --header-height: 5rem;
  }
  .site-header-inner {
    width: calc(100% - 2.5rem);
  }
  .site-mark {
    font-size: 3rem;
  }
  .menu-toggle {
    display: block;
  }
  .primary-navigation {
    position: fixed;
    top: var(--header-height);
    right: 0;
    left: 0;
    display: grid;
    gap: 0;
    border-bottom: 1px solid var(--color-rule);
    background: var(--color-paper);
    padding: 0.75rem 1.25rem 1.5rem;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-0.75rem);
    transition:
      opacity 0.16s ease,
      transform 0.16s ease;
  }
  .site-header[data-menu-open="true"] .primary-navigation {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }
  .primary-navigation a {
    border-bottom: 1px solid var(--color-rule);
    padding: 0.95rem 0;
    font-size: 0.92rem;
  }
  .primary-navigation a:last-child {
    border-bottom: 0;
  }
  .primary-navigation a:after {
    display: none;
  }
  .primary-navigation a[aria-current="page"] {
    color: var(--color-red);
  }
  .story-section {
    min-height: auto;
  }
  .story-inner {
    width: calc(100% - 2.5rem);
    min-height: calc(100svh - var(--header-height));
    padding-block: 3.75rem;
  }
  .editorial-page--variable-rhythm .story-section:not(:first-child) {
    min-height: 0;
  }
  .editorial-page--variable-rhythm
    .story-section:not(:first-child)
    .story-inner {
    min-height: 0;
    padding-block: clamp(4rem, 12vw, 5rem);
  }
  .display-title {
    font-size: clamp(3.25rem, 15vw, 5.25rem);
  }
  .section-title,
  .section-title--medium {
    font-size: clamp(2.55rem, 11.5vw, 4.25rem);
  }
  .hero-layout,
  .split-hero,
  .lab-hero-grid,
  .about-intro,
  .featured-thinking {
    grid-template-columns: 1fr;
    gap: 3.5rem;
  }
  .contribution-model,
  .unit-analysis,
  .mini-process,
  .identity-block {
    width: 100%;
  }
  .unit-analysis,
  .identity-block {
    text-align: left;
  }
  .identity-details {
    margin-left: 0;
  }
  .unit-analysis strong {
    margin-top: 1.5rem;
  }
  .evidence-row,
  .three-column,
  .comparison-grid,
  .candidate-grid,
  .thinking-grid,
  .stats-grid,
  .dimension-grid,
  .value-chain,
  .lineage-grid,
  .five-step-grid,
  .flow-grid {
    grid-template-columns: 1fr;
  }
  .evidence-row,
  .three-column,
  .comparison-grid,
  .candidate-grid,
  .thinking-grid,
  .dimension-grid {
    border-top: 0;
  }
  .evidence-row > div,
  .three-column > article,
  .comparison-grid > article,
  .dimension-grid > article,
  .thinking-grid > article,
  .candidate-grid > div {
    border-right: 0;
    border-bottom: 0;
    border-left: 0 !important;
    padding: 1.6rem 0 !important;
  }
  .evidence-row > div:not(:last-child),
  .three-column > article:not(:last-child),
  .comparison-grid > article:not(:last-child),
  .dimension-grid > article:not(:last-child),
  .thinking-grid > article:not(:last-child),
  .candidate-grid > div:not(:last-child) {
    border-bottom: 1px solid var(--color-rule);
  }
  .step-card:first-child,
  .flow-card:first-child,
  .lineage-card:first-child {
    border-top: 0;
  }
  .value-node:not(:last-child):after,
  .lineage-card:not(:last-child):after,
  .lineage-card h3:after {
    display: none;
  }
  .lineage-card h3 {
    height: auto;
    min-height: 0;
  }
  .value-node {
    min-height: 0;
    border-top: 0;
    border-bottom: 0;
    padding: 1.6rem 0 2rem;
  }
  .value-node:not(:last-child) {
    border-bottom: 1px solid var(--color-rule);
  }
  .value-node h3 {
    max-width: none;
    margin-top: 1rem;
  }
  .value-destination {
    margin-top: 2.5rem;
  }
  .contribution-timeline {
    grid-template-columns: 1fr;
    gap: 0;
    margin-top: 3rem;
  }
  .contribution-timeline:before {
    top: 0;
    bottom: 0;
    left: 0.7rem;
    width: 2px;
    height: auto;
  }
  .timeline-node {
    min-height: 4.25rem;
    padding: 0 0 1.75rem 3.5rem;
    text-align: left;
  }
  .timeline-node:before {
    top: 0;
    left: 0.75rem;
  }
  .question-grid,
  .outputs-grid {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .question-row {
    grid-template-columns: 2.5rem 1fr;
  }
  .question-row p {
    grid-column: 2;
  }
  .word-grid {
    grid-template-columns: 1fr;
    row-gap: 1.15rem;
  }
  .word-grid span {
    min-height: 3.5rem;
    border-bottom: 0;
    padding-bottom: 0;
    font-size: clamp(1.75rem, 8vw, 2.4rem);
  }
  .thinking-sidebar {
    border-top: 1px solid var(--color-rule);
    border-left: 0;
    padding-top: 1rem;
    padding-left: 0;
  }
  .brief-row {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }
  .field-question {
    grid-template-columns: 2.5rem 1fr;
  }
  .question-row:last-child,
  .output-row:last-child,
  .brief-row:last-child,
  .field-question:last-child,
  .principle:last-child,
  .thinking-sidebar article:last-child {
    border-bottom: 0;
  }
  .site-footer-cta {
    min-height: 0;
    grid-template-columns: 1fr;
    gap: 2rem;
    padding-block: 3rem 2.5rem;
  }
  .site-footer-shell {
    width: calc(100% - 2.5rem);
  }
  .site-footer-cta strong {
    font-size: clamp(2rem, 9vw, 3.25rem);
    line-height: 1.02;
  }
  .site-footer-cta-link {
    justify-self: start;
  }
  .site-footer-inner {
    min-height: 0;
    flex-direction: column;
    gap: 2.5rem;
    align-items: flex-start;
    padding-block: 2.5rem 3rem;
  }
  .site-footer-link {
    align-self: flex-start;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *:before,
  *:after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}
.form-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.7rem 1.5rem;
  width: 100%;
  margin-top: clamp(2.5rem, 6vh, 5rem);
}
.form-field {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 0.55rem;
}
.form-field--redesign {
  grid-column: 1 / -1;
}
.form-label {
  color: var(--color-grey);
  font-size: 0.78rem;
  font-weight: 600;
}
.required {
  color: var(--color-red);
}
.form-input,
.form-textarea {
  width: 100%;
  border: 0;
  border-bottom: 1px solid var(--color-rule);
  border-radius: 0;
  background: transparent;
  color: var(--color-ink);
  font-size: 1rem;
  outline: 0;
  transition: border-color 0.16s ease;
}
.form-input {
  min-height: 3rem;
  padding: 0.5rem 0;
}
.form-textarea {
  min-height: 6.5rem;
  padding: 0.75rem 0;
  resize: vertical;
}
.form-input:focus,
.form-textarea:focus {
  border-color: var(--color-red);
  border-bottom-width: 2px;
}
.form-actions {
  display: flex;
  grid-column: 1 / -1;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  margin-top: 0.5rem;
}
.form-actions p {
  color: var(--color-grey);
  font-size: 0.72rem;
}
.form-button {
  display: inline-flex;
  min-width: 11rem;
  min-height: 3rem;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  border: 1px solid var(--color-red);
  padding: 0.75rem 1rem;
  background: var(--color-red);
  color: var(--color-paper);
  font-size: 0.86rem;
  font-weight: 700;
  transition:
    background-color 0.16s ease,
    border-color 0.16s ease;
}
.form-button:hover:not(:disabled),
.form-button:focus-visible {
  border-color: var(--color-ink);
  background: var(--color-ink);
}
.form-button:disabled {
  cursor: wait;
  opacity: 0.6;
}
.form-error,
.form-field-error {
  color: var(--color-error);
  font-size: 0.82rem;
}
.form-error {
  grid-column: 1 / -1;
}
.form-input-error {
  border-color: var(--color-error);
}
.form-success-panel {
  scroll-margin-top: calc(var(--header-height) + 2rem);
  outline: none;
}
.form-success-kicker {
  display: block;
  margin-bottom: 1.75rem;
  color: var(--color-red);
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
}
.form-success-panel h2 {
  max-width: 70rem;
  font-size: clamp(2.65rem, 5.1vw, 5.4rem);
  letter-spacing: -0.045em;
  line-height: 0.98;
}
.form-success-panel > p {
  margin-top: 1.75rem;
  color: var(--color-grey);
  font-size: clamp(1.1rem, 1.6vw, 1.55rem);
}
.form-success-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.5rem, 3vw, 3rem);
  margin-top: clamp(3rem, 7vh, 6rem);
}
.form-success-steps article {
  border-top: 1px solid var(--color-rule);
  padding-top: 1.4rem;
}
.form-success-steps span {
  color: var(--color-red);
  font-size: 0.8rem;
  font-weight: 700;
}
.form-success-steps h3 {
  margin-top: 1.25rem;
  font-size: clamp(1.35rem, 2.2vw, 2.2rem);
  letter-spacing: -0.03em;
  line-height: 1.08;
}
.form-success-steps p {
  margin-top: 1.5rem;
  color: var(--color-grey);
}
@media (max-width: 47.5rem) {
  .form-container,
  .form-success-steps {
    grid-template-columns: 1fr;
  }
  .form-field--redesign {
    grid-column: auto;
  }
  .form-actions {
    flex-direction: column-reverse;
    align-items: stretch;
  }
  .form-button {
    width: 100%;
  }
}