:root {
  --ink: #0b1020;
  --paper: #f4f2eb;
  --blue: #703cff;
  --lime: #c8ff3d;
  --muted: #626878;
  --line: rgba(11, 16, 32, 0.17);
  --content: min(1280px, calc(100vw - 64px));
}

.article-next {
  display: block;
  width: fit-content;
  margin-top: 28px;
  color: white;
  font-size: 0.78rem;
  font-weight: 700;
  border-bottom: 1px solid rgba(255, 255, 255, 0.5);
}

/* Cumulative systems */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

.value-page {
  width: var(--content);
  margin-inline: auto;
}

.value-hero {
  padding: clamp(80px, 10vw, 148px) 0 clamp(72px, 9vw, 124px);
  border-bottom: 1px solid var(--line);
}

.value-hero h1 {
  max-width: 12.5ch;
  margin: 28px 0 36px;
  font-size: clamp(4.1rem, 7.8vw, 8rem);
  font-weight: 600;
  letter-spacing: -0.075em;
  line-height: 0.9;
}

.value-hero h1 span {
  color: var(--blue);
}

.value-deck {
  max-width: 47rem;
  margin: 0;
  color: var(--muted);
  font-size: clamp(1.2rem, 2vw, 1.65rem);
  letter-spacing: -0.035em;
  line-height: 1.5;
}

.value-visual,
.value-concepts,
.measurement-loop {
  padding: clamp(88px, 10vw, 140px) 0;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 24px;
}

.visual-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
  gap: 80px;
  align-items: end;
}

.visual-heading h2 {
  max-width: 13ch;
  margin: 24px 0 0;
  font-size: clamp(3.1rem, 5.6vw, 5.8rem);
  font-weight: 600;
  letter-spacing: -0.065em;
  line-height: 0.96;
}

.visual-heading > p {
  margin: 0;
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.7;
}

.value-chart {
  margin-top: 76px;
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  grid-template-rows: auto 460px;
  gap: 20px 24px;
}

.chart-legend {
  grid-column: 2;
  display: flex;
  justify-content: flex-end;
  gap: 24px;
  color: var(--muted);
  font-size: 0.7rem;
}

.chart-legend span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.chart-legend i {
  width: 11px;
  height: 11px;
  display: inline-block;
}

.legend-measured {
  background: var(--blue);
}

.legend-unmeasured {
  background: var(--lime);
  border: 1px solid var(--ink);
}

.chart-scale {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  color: var(--muted);
  font-family: "DM Mono", monospace;
  font-size: 0.62rem;
}

.chart-plot {
  position: relative;
  padding: 0 18px 32px;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: clamp(10px, 2vw, 28px);
  align-items: end;
  border-left: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  background: repeating-linear-gradient(
    to bottom,
    transparent 0,
    transparent calc(25% - 1px),
    var(--line) 25%
  );
}

.build-cost-line {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 25%;
  z-index: 2;
  border-top: 2px solid var(--ink);
}

.build-cost-line span {
  position: absolute;
  right: 0;
  bottom: 8px;
  padding: 4px 7px;
  color: white;
  background: var(--ink);
  font-family: "DM Mono", monospace;
  font-size: 0.61rem;
}

.value-column {
  position: relative;
  height: 100%;
}

.column-measured,
.column-unmeasured {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
}

.column-measured {
  z-index: 1;
  height: var(--measured);
  background: var(--blue);
}

.column-unmeasured {
  bottom: var(--measured);
  height: calc(var(--actual) - var(--measured));
  background: repeating-linear-gradient(
    135deg,
    var(--lime) 0,
    var(--lime) 7px,
    rgba(200, 255, 61, 0.35) 7px,
    rgba(200, 255, 61, 0.35) 14px
  );
  border: 1px solid var(--ink);
  border-bottom: 0;
}

.value-column > span {
  position: absolute;
  left: 50%;
  bottom: -25px;
  width: max-content;
  transform: translateX(-50%);
  color: var(--muted);
  font-family: "DM Mono", monospace;
  font-size: 0.61rem;
}

.value-math {
  margin-top: 54px;
  padding: 28px 0;
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
  gap: 24px;
  align-items: center;
  border-block: 1px solid var(--ink);
}

.value-math div {
  display: grid;
  gap: 7px;
}

.value-math span {
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  font-weight: 600;
  letter-spacing: -0.05em;
}

.value-math small {
  color: var(--muted);
  font-size: 0.7rem;
  line-height: 1.4;
}

.value-math b {
  color: var(--blue);
  font-family: "DM Mono", monospace;
  font-size: 1.3rem;
}

.value-math__result span {
  color: var(--blue);
}

.concept-list {
  margin-top: 76px;
  border-top: 1px solid var(--ink);
}

.concept-list article {
  min-height: 176px;
  padding: 28px 0;
  display: grid;
  grid-template-columns: 90px 0.65fr 1.35fr;
  gap: 36px;
  align-items: center;
  border-bottom: 1px solid var(--line);
}

.concept-list article > span,
.measurement-loop ol > li > span {
  color: var(--blue);
  font-family: "DM Mono", monospace;
  font-size: 0.65rem;
}

.concept-list article > div {
  display: contents;
}

.concept-list h3 {
  margin: 0;
  font-size: clamp(1.6rem, 2.6vw, 2.5rem);
  letter-spacing: -0.05em;
}

.concept-list p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.65;
}

.compound-note {
  width: min(760px, 100%);
  margin: 76px 0 0 auto;
  padding: 36px;
  color: white;
  background: var(--ink);
}

.compound-note .eyebrow {
  color: var(--lime);
}

.compound-note h3 {
  margin: 54px 0 18px;
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  letter-spacing: -0.05em;
}

.compound-note > p:last-child {
  max-width: 58ch;
  margin: 0;
  color: rgba(255, 255, 255, 0.66);
  line-height: 1.65;
}

.measurement-loop ol {
  margin: 76px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  list-style: none;
  border-block: 1px solid var(--ink);
}

.measurement-loop ol li {
  min-height: 260px;
  padding: 24px 22px 24px 0;
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--line);
}

.measurement-loop ol li:not(:first-child) {
  padding-left: 22px;
}

.measurement-loop ol li:last-child {
  border-right: 0;
}

.measurement-loop ol h3 {
  margin: auto 0 8px;
  font-size: 1.25rem;
  letter-spacing: -0.035em;
}

.measurement-loop ol p {
  margin: 0;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.5;
}

.value-cta {
  margin-top: 100px;
  padding: 48px;
  display: grid;
  grid-template-columns: 1fr 0.8fr;
  gap: 80px;
  color: white;
  background: var(--blue);
}

.value-cta .eyebrow {
  color: var(--lime);
}

.value-cta h2 {
  max-width: 11ch;
  margin: 24px 0 0;
  font-size: clamp(2.8rem, 5vw, 5rem);
  letter-spacing: -0.065em;
  line-height: 0.96;
}

.value-cta > div:last-child {
  align-self: end;
}

.value-cta > div:last-child > p {
  margin: 0;
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.7;
}

.value-actions {
  margin-top: 34px;
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.value-text-link {
  color: white;
  font-size: 0.76rem;
  font-weight: 700;
  border-bottom: 1px solid rgba(255, 255, 255, 0.5);
}

@media (max-width: 900px) {
  .visual-heading,
  .value-cta {
    grid-template-columns: 1fr;
  }

  .measurement-loop ol {
    grid-template-columns: repeat(2, 1fr);
  }

  .measurement-loop ol li:nth-child(2) {
    border-right: 0;
  }
}

@media (max-width: 680px) {
  .value-hero {
    padding: 64px 0 72px;
  }

  .value-hero h1 {
    font-size: clamp(3.65rem, 17vw, 5.1rem);
  }

  .value-chart {
    grid-template-columns: 46px minmax(0, 1fr);
    grid-template-rows: auto 360px;
    gap: 18px 10px;
  }

  .chart-legend {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }

  .chart-plot {
    padding-inline: 8px;
    gap: 8px;
  }

  .build-cost-line span {
    max-width: 150px;
    line-height: 1.35;
  }

  .value-column > span {
    font-size: 0.55rem;
  }

  .value-math {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .concept-list article {
    grid-template-columns: 44px 1fr;
    gap: 18px;
  }

  .concept-list article > div {
    display: block;
  }

  .concept-list p {
    margin-top: 12px;
  }

  .compound-note {
    padding: 28px 24px;
  }

  .measurement-loop ol {
    grid-template-columns: 1fr;
  }

  .measurement-loop ol li,
  .measurement-loop ol li:not(:first-child) {
    min-height: 190px;
    padding: 22px 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .value-cta {
    padding: 32px 24px;
    gap: 46px;
  }
}

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

html {
  scroll-behavior: auto;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background: var(--paper);
  font-family: "Manrope", sans-serif;
  -webkit-font-smoothing: antialiased;
}

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

a:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 4px;
}

.site-header,
main,
.site-footer {
  width: var(--content);
  margin-inline: auto;
}

.site-header {
  min-height: 84px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-size: 0.98rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.brand-mark {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: white;
  background: var(--ink);
}

.site-header nav {
  display: flex;
  gap: 28px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 600;
}

.site-header nav a:hover,
.header-link:hover,
.site-footer a:hover {
  color: var(--blue);
}

.header-link {
  padding-bottom: 3px;
  border-bottom: 1px solid currentColor;
  font-size: 0.78rem;
  font-weight: 700;
}

.hero {
  min-height: 620px;
  padding: clamp(60px, 6vw, 76px) 0;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(380px, 0.75fr);
  align-items: center;
  gap: clamp(56px, 8vw, 120px);
  border-bottom: 1px solid var(--line);
}

.eyebrow,
.deal-card__top,
.term-list > li > span {
  margin: 0;
  font-family: "DM Mono", monospace;
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  line-height: 1.4;
  text-transform: uppercase;
}

.eyebrow {
  color: var(--blue);
}

.hero h1 {
  max-width: 12ch;
  margin: 24px 0;
  font-size: clamp(4.1rem, 6vw, 6.3rem);
  font-weight: 600;
  letter-spacing: -0.07em;
  line-height: 0.91;
}

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

.hero-intro {
  max-width: 42rem;
  margin: 0 0 28px;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.6vw, 1.32rem);
  letter-spacing: -0.025em;
  line-height: 1.55;
}

.button {
  min-height: 56px;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
  padding: 0 22px;
  font-size: 0.78rem;
  font-weight: 700;
  transition:
    transform 160ms ease,
    background-color 160ms ease;
}

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

.button--blue {
  color: white;
  background: var(--blue);
}

.button--blue:hover {
  background: var(--ink);
}

.deal-card {
  min-height: 460px;
  padding: 30px;
  display: flex;
  flex-direction: column;
  color: white;
  background: var(--ink);
}

.deal-card__top {
  display: flex;
  justify-content: space-between;
  color: rgba(255, 255, 255, 0.48);
}

.deal-card__top p {
  margin: 0;
}

.deal-card__top span {
  color: var(--lime);
}

.deal-formula {
  margin: auto 0;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 20px;
}

.deal-formula div {
  display: grid;
  gap: 8px;
}

.deal-formula strong {
  font-size: clamp(1.55rem, 2.4vw, 2.4rem);
  letter-spacing: -0.05em;
  line-height: 1;
}

.deal-formula small,
.deal-summary {
  color: rgba(255, 255, 255, 0.56);
  line-height: 1.5;
}

.deal-formula b {
  color: var(--lime);
  font-size: 1.4rem;
}

.deal-summary {
  max-width: 38ch;
  margin: 0;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
  font-size: 0.86rem;
}

.contributions {
  padding: 76px 0;
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: stretch;
  border-bottom: 1px solid var(--line);
}

.contributions article {
  min-height: 230px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
}

.contributions h2 {
  margin: auto 0 10px;
  font-size: clamp(1.8rem, 3vw, 2.7rem);
  letter-spacing: -0.055em;
  line-height: 1;
}

.contributions article > p:last-child {
  max-width: 31ch;
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.5;
}

.contribution-sign {
  width: 42px;
  display: grid;
  place-items: center;
  color: var(--muted);
  font-family: "DM Mono", monospace;
}

.contributions .contribution-result {
  color: white;
  background: var(--blue);
  border-color: var(--blue);
}

.contribution-result .eyebrow {
  color: var(--lime);
}

.contributions .contribution-result > p:last-child {
  color: rgba(255, 255, 255, 0.68);
}

.terms {
  padding: clamp(88px, 10vw, 140px) 0;
  display: grid;
  grid-template-columns: minmax(300px, 0.8fr) minmax(500px, 1.2fr);
  gap: clamp(72px, 10vw, 150px);
  border-bottom: 1px solid var(--line);
}

.terms-intro h2,
.cta h2 {
  margin: 24px 0;
  font-size: clamp(3.2rem, 5.5vw, 5.6rem);
  font-weight: 600;
  letter-spacing: -0.065em;
  line-height: 0.95;
}

.terms-intro > p:last-child,
.cta > p {
  max-width: 43ch;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.96rem;
  line-height: 1.65;
}

.term-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--ink);
}

.term-list li {
  min-height: 112px;
  padding: 22px 0;
  display: grid;
  grid-template-columns: 72px 1fr;
  align-items: center;
  border-bottom: 1px solid var(--line);
}

.term-list > li > span {
  color: var(--blue);
}

.term-list h3 {
  margin: 0 0 5px;
  font-size: 1.3rem;
  letter-spacing: -0.035em;
}

.term-list p {
  margin: 0;
  color: var(--muted);
  font-size: 0.84rem;
}

.cta {
  width: 100vw;
  margin-left: calc(50% - 50vw);
  padding: clamp(90px, 11vw, 150px) max(32px, calc((100vw - 1280px) / 2));
  color: white;
  background: var(--blue);
}

.cta .eyebrow {
  color: var(--lime);
}

.cta h2 {
  max-width: 13ch;
}

.cta > p {
  color: rgba(255, 255, 255, 0.7);
}

.button--lime {
  margin-top: 38px;
  color: var(--ink);
  background: var(--lime);
}

.button--lime:hover {
  color: white;
  background: var(--ink);
}

.site-footer {
  min-height: 108px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  color: var(--muted);
  font-size: 0.74rem;
}

.site-footer .brand {
  color: var(--ink);
  font-size: 0.88rem;
}

.site-footer .brand-mark {
  width: 30px;
  height: 30px;
  font-size: 0.82rem;
}

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

  .hero {
    min-height: auto;
  }

  .deal-card {
    min-height: 380px;
  }

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

  .contribution-sign {
    width: auto;
    min-height: 42px;
  }
}

@media (max-width: 680px) {
  :root {
    --content: calc(100vw - 32px);
  }

  .site-header {
    min-height: 74px;
  }

  .site-header nav {
    display: none;
  }

  .hero {
    padding: 62px 0 70px;
    gap: 58px;
  }

  .hero h1 {
    font-size: clamp(3.7rem, 18vw, 5rem);
  }

  .deal-card {
    min-height: 400px;
    padding: 24px;
  }

  .deal-formula {
    grid-template-columns: 1fr;
  }

  .deal-formula b {
    margin: 2px 0;
  }

  .contributions {
    padding: 58px 0;
  }

  .contributions article {
    min-height: 220px;
    padding: 24px;
  }

  .terms {
    padding: 84px 0;
    gap: 62px;
  }

  .term-list li {
    grid-template-columns: 54px 1fr;
  }

  .cta {
    padding-inline: 16px;
  }

  .site-footer {
    padding: 30px 0;
    align-items: flex-start;
    flex-direction: column;
  }
}

/* Article */
.article-page {
  width: var(--content);
  margin-inline: auto;
}

.article-hero {
  padding: clamp(76px, 9vw, 132px) 0 clamp(68px, 8vw, 112px);
  border-bottom: 1px solid var(--line);
}

.article-hero h1 {
  max-width: 12ch;
  margin: 28px 0 36px;
  font-size: clamp(4.1rem, 7.8vw, 8rem);
  font-weight: 600;
  letter-spacing: -0.075em;
  line-height: 0.9;
}

.article-hero h1 span {
  color: var(--blue);
}

.article-deck {
  max-width: 47rem;
  margin: 0;
  color: var(--muted);
  font-size: clamp(1.2rem, 2vw, 1.65rem);
  letter-spacing: -0.035em;
  line-height: 1.48;
}

.article-meta {
  margin-top: 48px;
  display: flex;
  gap: 24px;
  color: var(--muted);
  font-family: "DM Mono", monospace;
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.article-layout {
  padding: 84px 0 120px;
  display: grid;
  grid-template-columns: 220px minmax(0, 760px);
  justify-content: space-between;
  gap: 80px;
}

.article-aside {
  align-self: start;
  position: sticky;
  top: 28px;
}

.article-aside > p {
  margin: 0 0 20px;
  color: var(--blue);
  font-family: "DM Mono", monospace;
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.article-aside nav {
  display: grid;
  border-top: 1px solid var(--ink);
}

.article-aside a {
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.76rem;
  line-height: 1.35;
}

.article-aside a:hover {
  color: var(--blue);
}

.article-body {
  min-width: 0;
}

.article-summary {
  margin-bottom: 96px;
  padding: 34px;
  color: white;
  background: var(--ink);
}

.article-summary .eyebrow {
  color: var(--lime);
}

.article-summary > p:last-child {
  margin: 64px 0 0;
  font-size: clamp(1.45rem, 2.5vw, 2.15rem);
  letter-spacing: -0.045em;
  line-height: 1.25;
}

.prose-section {
  padding: 0 0 104px;
  scroll-margin-top: 30px;
}

.prose-section + .prose-section {
  padding-top: 104px;
  border-top: 1px solid var(--line);
}

.section-number {
  margin: 0 0 24px;
  color: var(--blue);
  font-family: "DM Mono", monospace;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.prose-section > h2,
.article-conclusion h2 {
  margin: 0 0 32px;
  font-size: clamp(2.65rem, 4.5vw, 4.6rem);
  font-weight: 600;
  letter-spacing: -0.065em;
  line-height: 0.98;
}

.prose-section > p:not(.section-number) {
  margin: 0 0 22px;
  color: #353b49;
  font-size: 1.04rem;
  line-height: 1.78;
}

.reason-grid {
  margin: 48px 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}

.reason-grid article {
  min-height: 230px;
  padding: 22px 20px 22px 0;
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--line);
}

.reason-grid article:not(:first-child) {
  padding-left: 20px;
}

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

.reason-grid span,
.article-terms > li > span {
  color: var(--blue);
  font-family: "DM Mono", monospace;
  font-size: 0.65rem;
}

.reason-grid h3 {
  margin: auto 0 8px;
  font-size: 1.2rem;
  letter-spacing: -0.035em;
}

.reason-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.5;
}

blockquote {
  margin: 52px 0 0;
  padding: 12px 0 12px 30px;
  border-left: 5px solid var(--blue);
  font-size: clamp(1.45rem, 2.6vw, 2.2rem);
  font-weight: 500;
  letter-spacing: -0.045em;
  line-height: 1.3;
}

.evidence-ladder {
  margin: 48px 0;
  border-top: 1px solid var(--ink);
}

.evidence-ladder article {
  min-height: 130px;
  padding: 24px 0;
  display: grid;
  grid-template-columns: 132px 1fr;
  gap: 24px;
  align-items: start;
  border-bottom: 1px solid var(--line);
}

.evidence-grade {
  color: var(--blue);
  font-family: "DM Mono", monospace;
  font-size: 0.63rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.evidence-ladder h3 {
  margin: 0 0 8px;
  font-size: 1.25rem;
  letter-spacing: -0.03em;
}

.evidence-ladder p {
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.55;
}

.formula-card,
.deal-principle {
  padding: 30px;
  color: white;
  background: var(--blue);
}

.formula-card > p,
.deal-principle > p {
  margin: 0 0 54px;
  color: var(--lime);
  font-family: "DM Mono", monospace;
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.formula-card strong,
.deal-principle strong {
  display: block;
  font-size: clamp(1.65rem, 3vw, 2.6rem);
  letter-spacing: -0.05em;
  line-height: 1.15;
}

.formula-card small,
.deal-principle small {
  display: block;
  max-width: 55ch;
  margin-top: 24px;
  color: rgba(255, 255, 255, 0.66);
  line-height: 1.6;
}

.article-terms {
  margin: 48px 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--ink);
}

.article-terms li {
  min-height: 112px;
  padding: 24px 0;
  display: grid;
  grid-template-columns: 72px 1fr;
  align-items: center;
  border-bottom: 1px solid var(--line);
}

.article-terms h3 {
  margin: 0 0 6px;
  font-size: 1.32rem;
  letter-spacing: -0.035em;
}

.article-terms p {
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.5;
}

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

.stage-table {
  margin-top: 48px;
  border-top: 1px solid var(--ink);
}

.stage-row {
  min-height: 86px;
  padding: 18px 0;
  display: grid;
  grid-template-columns: 0.7fr 1.5fr 0.7fr;
  gap: 24px;
  align-items: center;
  border-bottom: 1px solid var(--line);
  font-size: 0.82rem;
}

.stage-row span {
  color: var(--muted);
  line-height: 1.45;
}

.stage-row span:last-child {
  color: var(--blue);
  font-weight: 700;
}

.stage-row--head {
  min-height: 52px;
  color: var(--muted);
  font-family: "DM Mono", monospace;
  font-size: 0.61rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.qualification-list {
  margin: 48px 0 80px;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--ink);
}

.qualification-list li {
  position: relative;
  padding: 20px 48px 20px 0;
  border-bottom: 1px solid var(--line);
  font-size: 1rem;
  line-height: 1.45;
}

.qualification-list li::after {
  content: "✓";
  position: absolute;
  top: 20px;
  right: 0;
  color: var(--blue);
  font-weight: 700;
}

.article-conclusion {
  padding: 48px;
  color: white;
  background: var(--blue);
}

.article-conclusion h2 {
  max-width: 11ch;
}

.article-conclusion p {
  max-width: 52ch;
  margin: 0;
  color: rgba(255, 255, 255, 0.74);
  line-height: 1.7;
}

.article-conclusion .button {
  margin-top: 36px;
}

.article-hero--compact h1 {
  max-width: 13ch;
  font-size: clamp(3.9rem, 7vw, 7.2rem);
}

.article-layout--compact {
  padding-bottom: 80px;
}

.article-summary--equation {
  padding: 32px;
}

.summary-equation {
  margin-top: 62px;
  display: grid;
  gap: 22px;
}

.summary-inputs {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  gap: 18px;
  align-items: center;
}

.summary-inputs span,
.summary-output {
  font-size: clamp(1.25rem, 2.4vw, 1.95rem);
  font-weight: 600;
  letter-spacing: -0.045em;
  line-height: 1.05;
}

.summary-output {
  color: var(--lime);
  font-size: clamp(2rem, 4vw, 3.5rem);
}

.summary-equation b {
  color: var(--lime);
  font-family: "DM Mono", monospace;
}

.summary-equals {
  font-size: 1.25rem;
}

.capability-chain {
  margin: 48px 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}

.capability-chain article {
  min-height: 260px;
  padding: 22px 20px 22px 0;
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--line);
}

.capability-chain article:not(:first-child) {
  padding-left: 20px;
}

.capability-chain article:last-child {
  border-right: 0;
}

.capability-chain span,
.delivery-flow > li > span {
  color: var(--blue);
  font-family: "DM Mono", monospace;
  font-size: 0.65rem;
}

.capability-chain h3 {
  margin: auto 0 8px;
  font-size: 1.2rem;
  letter-spacing: -0.035em;
  line-height: 1.1;
}

.capability-chain p {
  margin: 0;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.5;
}

.principle-note {
  margin-top: 48px;
  padding: 28px 0;
  display: grid;
  grid-template-columns: 0.75fr 1.25fr;
  gap: 40px;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}

.principle-note strong {
  font-size: 1.2rem;
  letter-spacing: -0.03em;
  line-height: 1.25;
}

.principle-note p {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.65;
}

.delivery-flow {
  margin: 48px 0 80px;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  list-style: none;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}

.delivery-flow li {
  min-height: 230px;
  padding: 22px 18px 22px 0;
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--line);
}

.delivery-flow li:not(:first-child) {
  padding-left: 18px;
}

.delivery-flow li:last-child {
  border-right: 0;
}

.delivery-flow div {
  margin-top: auto;
}

.delivery-flow h3 {
  margin: 0 0 8px;
  font-size: 1.2rem;
  letter-spacing: -0.035em;
}

.delivery-flow p {
  margin: 0;
  color: var(--muted);
  font-size: 0.76rem;
  line-height: 1.5;
}

@media (max-width: 900px) {
  .article-layout {
    grid-template-columns: 1fr;
  }

  .article-aside {
    display: none;
  }
}

@media (max-width: 680px) {
  .article-hero {
    padding: 64px 0 70px;
  }

  .article-hero h1 {
    font-size: clamp(3.7rem, 17vw, 5.2rem);
  }

  .article-meta {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }

  .article-layout {
    padding: 64px 0 80px;
  }

  .article-summary {
    margin-bottom: 76px;
    padding: 26px;
  }

  .article-summary > p:last-child {
    margin-top: 48px;
  }

  .prose-section {
    padding-bottom: 82px;
  }

  .prose-section + .prose-section {
    padding-top: 82px;
  }

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

  .reason-grid article,
  .reason-grid article:not(:first-child) {
    min-height: 180px;
    padding: 20px 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .evidence-ladder article {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .stage-row {
    grid-template-columns: 1fr;
    gap: 7px;
  }

  .stage-row--head {
    display: none;
  }

  .article-conclusion {
    padding: 30px 24px;
  }

  .summary-inputs {
    grid-template-columns: 1fr auto;
  }

  .summary-inputs span:nth-of-type(3) {
    grid-column: 1;
  }

  .capability-chain,
  .delivery-flow {
    grid-template-columns: 1fr;
  }

  .capability-chain article,
  .capability-chain article:not(:first-child),
  .delivery-flow li,
  .delivery-flow li:not(:first-child) {
    min-height: 180px;
    padding: 20px 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .principle-note {
    grid-template-columns: 1fr;
    gap: 18px;
  }
}