:root {
  --mineral: #f2f3ee;
  --paper: #fffefa;
  --ink: #071421;
  --ink-soft: #12283a;
  --muted: #536272;
  --sapphire: #2468dc;
  --blue-soft: #b7cdf9;
  --line: #bdc6cb;
  --dark-line: #314353;
  --signal: #c46c19;
  --mint: #72d5ba;
  --display: "Avenir Next Condensed", "Arial Narrow", "Helvetica Neue", sans-serif;
  --body: "Iowan Old Style", "Palatino Linotype", Palatino, serif;
  --utility: "Avenir Next", Aptos, "Helvetica Neue", sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--mineral);
  font-family: var(--body);
  font-size: 18px;
  line-height: 1.55;
}

a { color: inherit; }

.skip-link {
  position: fixed;
  z-index: 30;
  top: 1rem;
  left: 1rem;
  padding: 0.75rem 1rem;
  color: var(--paper);
  background: var(--ink);
  font-family: var(--utility);
  font-size: 0.78rem;
  transform: translateY(-180%);
}

.skip-link:focus { transform: translateY(0); }

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

.masthead,
main > section:not(.inference),
footer {
  width: min(1320px, calc(100% - 56px));
  margin-inline: auto;
}

/* Research publication: the question ledger is the signature surface. */
.research-publication {
  background:
    linear-gradient(90deg, transparent 0 67%, rgba(52, 120, 246, 0.055) 67% 67.08%, transparent 67.08%),
    var(--mineral);
}

.research-hero {
  min-height: calc(100vh - 96px);
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(330px, 0.72fr);
  align-items: center;
  gap: clamp(3rem, 8vw, 9rem);
  padding: clamp(72px, 11vw, 148px) 0;
}

.research-hero-copy h1 {
  max-width: 760px;
  margin: 0 0 2rem;
}

.research-hero-copy .hero-deck {
  max-width: 690px;
}

.editorial-boundary {
  max-width: 660px;
  margin: 2rem 0 0;
  padding-left: 1rem;
  color: var(--muted);
  border-left: 2px solid var(--line);
  font-family: var(--utility);
  font-size: 0.72rem;
  line-height: 1.65;
  letter-spacing: 0.035em;
}

.question-ledger {
  position: relative;
  padding: clamp(2rem, 4vw, 3.4rem);
  color: var(--paper);
  background: var(--ink);
  box-shadow: 18px 18px 0 var(--blue-soft);
  animation: settle 0.75s ease both;
}

.question-ledger::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 7px;
  background: linear-gradient(var(--sapphire) 0 54%, var(--signal) 54% 72%, var(--mint) 72%);
}

.question-ledger .eyebrow { color: var(--mint); }
.question-ledger h2 {
  margin: 1.15rem 0 2.75rem;
  color: var(--paper);
  font-size: clamp(2rem, 3.4vw, 4rem);
}

.question-ledger dl { margin: 0; }
.question-ledger dl div {
  display: grid;
  grid-template-columns: minmax(95px, 0.45fr) 1fr;
  gap: 1rem;
  padding: 0.9rem 0;
  border-top: 1px solid var(--dark-line);
}
.question-ledger dt,
.question-ledger dd {
  margin: 0;
  font-family: var(--utility);
  font-size: 0.7rem;
}
.question-ledger dt { color: #91a4b3; text-transform: uppercase; letter-spacing: 0.07em; }
.question-ledger dd { color: var(--paper); }
.state-reviewed { color: var(--mint); }

.today-section,
.thesis-section,
.evidence-section,
.history-section {
  padding: clamp(92px, 11vw, 150px) 0;
}

.today-section { border-top: 1px solid var(--line); }

.change-ledger {
  margin: 4rem 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--ink);
}

.change-ledger li {
  display: grid;
  grid-template-columns: 90px minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 4rem);
  padding: 2.25rem 0;
  border-bottom: 1px solid var(--line);
}
.change-index {
  color: var(--sapphire);
  font-family: var(--utility);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}
.change-ledger h3 {
  margin: 0 0 0.7rem;
  font-size: clamp(1.55rem, 3vw, 2.55rem);
}
.change-ledger p { max-width: 880px; margin: 0; }
.change-ledger small {
  display: block;
  margin-top: 0.85rem;
  color: var(--muted);
  font-family: var(--utility);
  font-size: 0.71rem;
  font-weight: 700;
}

.thesis-section {
  color: var(--paper);
  background: var(--ink-soft);
  box-shadow: 50vw 0 0 var(--ink-soft), -50vw 0 0 var(--ink-soft);
}
.thesis-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 3rem;
  align-items: start;
}
.thesis-heading .eyebrow { color: var(--mint); }
.thesis-heading h2 {
  max-width: 1000px;
  margin: 1rem 0 0;
  color: var(--paper);
  font-size: clamp(2.25rem, 5.2vw, 5.4rem);
}
.review-stamp {
  width: 92px;
  aspect-ratio: 1;
  display: grid;
  place-content: center;
  color: var(--ink);
  background: var(--mint);
  border-radius: 50%;
  font-family: var(--utility);
  font-size: 0.64rem;
  font-weight: 900;
  letter-spacing: 0.09em;
  line-height: 1.45;
  text-align: center;
  text-transform: uppercase;
  transform: rotate(5deg);
}

.scenario-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 4.5rem;
  border: 1px solid var(--dark-line);
}
.scenario {
  min-height: 285px;
  padding: 2rem;
  border-right: 1px solid var(--dark-line);
}
.scenario:last-child { border-right: 0; }
.scenario-label {
  margin: 0 0 3rem;
  font-family: var(--utility);
  font-size: 0.66rem;
  font-weight: 900;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}
.bull-case .scenario-label { color: var(--mint); }
.base-case .scenario-label { color: var(--blue-soft); }
.bear-case .scenario-label { color: #ffc18a; }
.scenario > p:last-child { margin: 0; color: #dce4e9; }

.thesis-detail-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 1px;
  background: var(--dark-line);
}
.thesis-detail-grid article { padding: 2rem; background: var(--ink); }
.thesis-detail-grid .eyebrow { color: #91a4b3; }
.thesis-detail-grid ul { margin: 1.5rem 0 0; padding-left: 1.1rem; color: #c8d3da; }
.thesis-detail-grid li + li { margin-top: 0.75rem; }
.falsifier-card { box-shadow: inset 0 4px 0 var(--signal); }

.evidence-section {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.28fr);
  gap: clamp(3rem, 8vw, 8rem);
}
.evidence-section .section-heading { grid-template-columns: 1fr; align-content: start; }
.evidence-section .section-heading > p:last-child { grid-column: 1; }
.source-receipt {
  align-self: start;
  padding: clamp(2rem, 4vw, 3.5rem);
  background: var(--paper);
  border: 1px solid var(--line);
  box-shadow: 12px 12px 0 var(--blue-soft);
}
.source-type {
  color: var(--sapphire);
  font-family: var(--utility);
  font-size: 0.68rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.source-receipt h3 { margin: 1rem 0 0.6rem; font-size: clamp(1.7rem, 3vw, 3rem); }
.source-receipt p { margin: 0; color: var(--muted); }
.source-receipt dl { margin: 2.5rem 0; }
.source-receipt dl div {
  display: grid;
  grid-template-columns: 0.42fr 1fr;
  padding: 0.8rem 0;
  border-top: 1px solid var(--line);
}
.source-receipt dt,
.source-receipt dd { margin: 0; font-family: var(--utility); font-size: 0.72rem; }
.source-receipt dt { color: var(--muted); text-transform: uppercase; }
.source-receipt a,
.history-section a { color: var(--sapphire); font-family: var(--utility); font-weight: 800; text-decoration-thickness: 2px; }
.source-receipt small { display: block; margin-top: 1.5rem; color: var(--muted); }

.history-section {
  display: grid;
  grid-template-columns: 0.8fr 1fr;
  gap: clamp(2rem, 7vw, 8rem);
  align-items: end;
  border-top: 1px solid var(--line);
}
.history-section h2 { margin: 1rem 0 0; }
.history-section > p { margin: 0; }
.history-section > a { grid-column: 2; }

.masthead {
  position: relative;
  min-height: 92px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 2rem;
  border-bottom: 1px solid var(--line);
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  width: fit-content;
  text-decoration: none;
  font-family: var(--utility);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.wordmark-mark {
  width: 22px;
  aspect-ratio: 1;
  border: 1px solid var(--sapphire);
  background:
    linear-gradient(135deg, transparent 46%, var(--sapphire) 47% 53%, transparent 54%),
    linear-gradient(45deg, transparent 46%, var(--sapphire) 47% 53%, transparent 54%);
  transform: rotate(45deg);
}

.desktop-nav,
.mobile-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  font-family: var(--utility);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.desktop-nav a,
.mobile-nav a {
  color: var(--muted);
  text-decoration: none;
}

.desktop-nav a:hover,
.mobile-nav a:hover { color: var(--sapphire); }

.nav-disclosure { display: none; }

.release-note {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0;
  color: var(--muted);
  font-family: var(--utility);
  font-size: 0.63rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.release-signal {
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 0 4px rgba(114, 213, 186, 0.14);
}

.hero {
  min-height: 760px;
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(410px, 0.88fr);
  gap: clamp(4rem, 8vw, 9rem);
  align-items: center;
  padding: 110px 0 124px;
}

.hero-copy {
  min-width: 0;
  max-width: 100%;
}

.eyebrow {
  margin: 0 0 1.4rem;
  color: var(--sapphire);
  font-family: var(--utility);
  font-size: 0.67rem;
  font-weight: 800;
  letter-spacing: 0.19em;
  text-transform: uppercase;
}

h1, h2, h3, p { text-wrap: pretty; }

h1 {
  max-width: 830px;
  margin: 0;
  font-family: var(--display);
  font-size: clamp(4.4rem, 7vw, 7.4rem);
  font-weight: 520;
  letter-spacing: -0.055em;
  line-height: 0.86;
  text-transform: uppercase;
}

h1 em {
  color: var(--sapphire);
  font-family: var(--body);
  font-size: 0.76em;
  font-weight: 400;
  letter-spacing: -0.045em;
  text-transform: none;
}

.hero-deck {
  max-width: 740px;
  margin: 2.7rem 0 0;
  color: #34495a;
  font-size: clamp(1.1rem, 1.7vw, 1.35rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1rem;
  border: 1px solid var(--ink);
  font-family: var(--utility);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-decoration: none;
  text-transform: uppercase;
}

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

.button-primary:hover { background: var(--sapphire); border-color: var(--sapphire); }
.button-secondary:hover { color: var(--sapphire); border-color: var(--sapphire); }

.hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 2.3rem;
}

.hero-facts span {
  padding: 0.52rem 0.72rem;
  border: 1px solid var(--line);
  color: var(--muted);
  background: rgba(255, 254, 250, 0.42);
  font-family: var(--utility);
  font-size: 0.64rem;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.system-stack {
  margin: 0;
  padding: 1.6rem;
  color: var(--paper);
  background:
    linear-gradient(140deg, rgba(52, 120, 246, 0.14), transparent 50%),
    var(--ink);
  box-shadow: 26px 26px 0 var(--blue-soft);
  animation: settle 800ms cubic-bezier(0.2, 0.8, 0.2, 1) both;
}

.system-stack figcaption { margin-bottom: 2.7rem; }
.system-stack figcaption > * { display: block; }
.system-stack .eyebrow { color: #9fc0ff; }

.system-stack figcaption strong {
  font-family: var(--display);
  font-size: clamp(2.2rem, 4vw, 3.7rem);
  font-weight: 560;
  letter-spacing: -0.035em;
  line-height: 1;
  text-transform: uppercase;
}

.system-stack figcaption > span:last-child {
  margin-top: 0.65rem;
  color: #bac8d3;
  font-size: 0.93rem;
}

.system-stack ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

.system-stack li {
  display: grid;
  grid-template-columns: 2rem 1fr auto;
  gap: 0.9rem;
  align-items: center;
  padding: 1.15rem 0;
  border-top: 1px solid var(--dark-line);
}

.system-stack li.authority-layer {
  margin-inline: -1.6rem;
  padding-inline: 1.6rem;
  border-top-color: var(--sapphire);
  background: rgba(52, 120, 246, 0.12);
}

.layer-index {
  color: #8ea2b4;
  font-family: var(--utility);
  font-size: 0.6rem;
}

.system-stack li div strong,
.system-stack li div small { display: block; }

.system-stack li div strong {
  font-family: var(--utility);
  font-size: 0.83rem;
}

.system-stack li div small {
  margin-top: 0.1rem;
  color: #9fb0bd;
  font-size: 0.72rem;
}

.state,
.proof-chip,
.lane-state {
  font-family: var(--utility);
  font-size: 0.56rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.state { color: #a7b6c2; }
.state-authority { color: #9fc0ff; }
.state-gate { color: #f5ad69; }

.compute { padding: 125px 0 140px; }

.section-heading {
  display: grid;
  grid-template-columns: 0.45fr 1.05fr 0.5fr;
  gap: 4rem;
  align-items: end;
  margin-bottom: 5.5rem;
}

.section-heading .eyebrow { align-self: start; }

.section-heading h2,
.contract h2,
.public-status h2 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(3.2rem, 5.4vw, 6rem);
  font-weight: 520;
  letter-spacing: -0.045em;
  line-height: 0.9;
  text-transform: uppercase;
}

.section-heading > p:last-child,
.contract-intro > p:last-child {
  margin: 0;
  color: var(--muted);
  font-size: 0.98rem;
}

.compute-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.compute-card {
  min-width: 0;
  padding: 2rem;
  background: var(--paper);
}

.compute-card.flagship { background: #e3ebfb; }
.compute-card.advisory { background: #f3e9db; }

.card-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.card-number {
  color: var(--muted);
  font-family: var(--utility);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
}

.proof-chip {
  padding: 0.35rem 0.5rem;
  color: #145c4a;
  border: 1px solid #6ab6a2;
}

.proof-chip-advisory {
  color: #875115;
  border-color: #d59b5a;
}

.compute-card h3 {
  margin: 4.5rem 0 0;
  font-family: var(--display);
  font-size: clamp(2.4rem, 4vw, 4.2rem);
  font-weight: 550;
  letter-spacing: -0.045em;
  line-height: 0.9;
  text-transform: uppercase;
}

.card-role {
  min-height: 3.3rem;
  margin: 1rem 0 3.5rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.compute-card dl { margin: 0; }

.compute-card dl div,
.snapshot-card dl div {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 1rem;
  padding: 0.8rem 0;
  border-top: 1px solid rgba(83, 98, 114, 0.28);
}

dt {
  color: var(--muted);
  font-family: var(--utility);
  font-size: 0.61rem;
  font-weight: 750;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

dd {
  margin: 0;
  font-family: var(--utility);
  font-size: 0.72rem;
  font-weight: 650;
}

.inference {
  width: 100%;
  padding: 125px max(28px, calc((100vw - 1320px) / 2)) 140px;
  color: var(--paper);
  background:
    radial-gradient(circle at 89% 15%, rgba(52, 120, 246, 0.23), transparent 28%),
    var(--ink);
}

.section-heading.inverse h2 { color: var(--paper); }
.section-heading.inverse .eyebrow { color: #9fc0ff; }
.section-heading.inverse > p:last-child { color: #b9c6cf; }

.lane-catalog {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--dark-line);
  border-left: 1px solid var(--dark-line);
  list-style: none;
}

.lane-catalog li {
  min-width: 0;
  min-height: 265px;
  padding: 1.7rem;
  border-right: 1px solid var(--dark-line);
  border-bottom: 1px solid var(--dark-line);
}

.lane-state { color: #9fc0ff; }
.lane-state.bounded { color: #f5ad69; }
.lane-state.catalogued { color: #9fb0bd; }

.lane-catalog h3 {
  margin: 4.2rem 0 0;
  font-family: var(--display);
  font-size: 2.8rem;
  font-weight: 550;
  letter-spacing: -0.035em;
  line-height: 1;
  text-transform: uppercase;
}

.lane-catalog p {
  max-width: 20rem;
  margin: 0.8rem 0 0;
  color: #b9c6cf;
  font-size: 0.9rem;
}

.contract {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 10vw;
  padding: 140px 0;
  border-bottom: 1px solid var(--line);
}

.contract-intro > p:last-child { max-width: 520px; margin-top: 2rem; }

.contract-steps {
  margin: 0;
  padding: 0;
  list-style: none;
}

.contract-steps li {
  display: grid;
  grid-template-columns: 3rem 1fr;
  gap: 1.4rem;
  padding: 1.8rem 0;
  border-top: 1px solid var(--line);
}

.contract-steps > li > span {
  color: var(--sapphire);
  font-family: var(--utility);
  font-size: 0.64rem;
}

.contract-steps h3 {
  margin: 0;
  font-family: var(--utility);
  font-size: 0.93rem;
  letter-spacing: 0.03em;
}

.contract-steps p {
  max-width: 560px;
  margin: 0.45rem 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.contract-steps .gate-step {
  margin-left: -1.2rem;
  padding-left: 1.2rem;
  border-top-color: var(--signal);
  border-left: 2px solid var(--signal);
}

.public-status {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 10vw;
  padding: 120px 0;
}

.evidence-intro > p:not(.eyebrow) {
  max-width: 34rem;
  margin: 2rem 0 0;
  color: var(--muted);
  font-size: 0.98rem;
}

.evidence-link {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1.5rem;
  color: var(--sapphire);
  font-family: var(--utility);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-underline-offset: 0.25em;
  text-transform: uppercase;
}

.evidence-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  align-self: start;
  border: 1px solid var(--line);
  background: var(--line);
}

.evidence-grid > article {
  min-height: 180px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 2rem;
  padding: 1.5rem;
  background: var(--paper);
}

.evidence-grid > article strong {
  color: var(--sapphire);
  font-family: var(--display);
  font-size: clamp(3rem, 5vw, 4.8rem);
  font-weight: 550;
  line-height: 0.8;
}

.evidence-grid > article > span {
  max-width: 13rem;
  color: var(--muted);
  font-family: var(--utility);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.evidence-grid .snapshot-card { grid-column: 1 / -1; }

.snapshot-card {
  align-self: start;
  padding: 1.8rem;
  color: var(--paper);
  background: var(--ink-soft);
}

.snapshot-heading {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 2rem;
  font-family: var(--utility);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.freshness-badge {
  margin-left: auto;
  padding: 0.35rem 0.5rem;
  color: #b9c6cf;
  border: 1px solid #536272;
  white-space: nowrap;
}

.freshness-badge[data-state="current"] {
  color: #8bd6be;
  border-color: #3f8f78;
}

.freshness-badge[data-state="stale"],
.freshness-badge[data-state="unverifiable"] {
  color: #ffd1aa;
  border-color: var(--signal);
}

.snapshot-card dt { color: #9fb0bd; }
.snapshot-card p {
  margin: 2rem 0 0;
  color: #b9c6cf;
  font-size: 0.88rem;
}

.snapshot-card .snapshot-stale-note {
  padding: 0.8rem 0.9rem;
  color: #ffd1aa;
  border: 1px solid var(--signal);
}

/* V2 research ledger: the aligned COIN/HOOD spine is the single visual signature. */
.ledger-hero { min-height: 720px; }

.comparison-section,
.coverage-section {
  padding: clamp(96px, 11vw, 150px) 0;
}

.comparison-section {
  color: var(--paper);
  background: var(--ink);
  box-shadow: 50vw 0 0 var(--ink), -50vw 0 0 var(--ink);
}

.comparison-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.55fr);
  gap: clamp(3rem, 9vw, 9rem);
  align-items: end;
}

.comparison-heading h2 {
  margin: 0;
  color: var(--paper);
  font-family: var(--display);
  font-size: clamp(3.2rem, 6vw, 6.6rem);
  font-weight: 520;
  letter-spacing: -0.05em;
  line-height: 0.88;
  text-transform: uppercase;
}

.comparison-heading h2 em {
  color: var(--mint);
  font-family: var(--body);
  font-size: 0.72em;
  font-weight: 400;
  text-transform: none;
}

.comparison-heading > p {
  margin: 0;
  color: #b9c6cf;
}

.comparison-spine {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 76px minmax(0, 1fr);
  margin-top: 5rem;
  border: 1px solid var(--dark-line);
}

.comparison-company { min-width: 0; padding: clamp(1.6rem, 4vw, 3.2rem); }
.comparison-company header { display: flex; align-items: baseline; gap: 1.1rem; }
.comparison-company h3 {
  margin: 0;
  color: var(--paper);
  font-family: var(--display);
  font-size: clamp(2rem, 4vw, 3.8rem);
  font-weight: 540;
  letter-spacing: -0.04em;
  line-height: 0.9;
  text-transform: uppercase;
}

.ticker {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 3.8rem;
  min-height: 2rem;
  padding: 0.35rem 0.55rem;
  color: var(--ink);
  background: var(--mint);
  font-family: var(--utility);
  font-size: 0.66rem;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.hood-side .ticker { background: #ffc18a; }
.company-question { margin: 1.6rem 0 2.4rem; color: #cbd6dd; }
.fact-register { margin: 0; }
.fact-register div {
  display: grid;
  grid-template-columns: minmax(120px, 1fr) auto;
  gap: 1rem;
  padding: 0.9rem 0;
  border-top: 1px solid var(--dark-line);
}
.fact-register dt { color: #91a4b3; }
.fact-register dd { color: var(--paper); font-size: 0.82rem; }
.evidence-note {
  margin: 2rem 0 0;
  color: #91a4b3;
  font-family: var(--utility);
  font-size: 0.62rem;
  letter-spacing: 0.04em;
}

.comparison-axis {
  display: grid;
  grid-template-rows: repeat(3, 1fr);
  border-inline: 1px solid var(--dark-line);
  background: var(--ink-soft);
}
.comparison-axis span {
  display: grid;
  place-content: center;
  color: #7890a2;
  border-bottom: 1px solid var(--dark-line);
  font-family: var(--utility);
  font-size: 0.55rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
}
.comparison-axis span:last-child { border-bottom: 0; }

.comparison-reading {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 1px;
  background: var(--dark-line);
}
.comparison-reading p {
  margin: 0;
  padding: 1.7rem;
  color: #bdcbd4;
  background: var(--ink-soft);
  font-size: 0.88rem;
}
.comparison-reading strong { color: var(--paper); font-family: var(--utility); }

.coverage-section {
  color: var(--paper);
  background: var(--ink-soft);
  box-shadow: 50vw 0 0 var(--ink-soft), -50vw 0 0 var(--ink-soft);
  border-top: 1px solid var(--dark-line);
}
.coverage-heading { margin-bottom: 4.5rem; }
.company-theses { display: grid; gap: 1.5rem; }
.company-thesis {
  padding: clamp(1.5rem, 4vw, 3rem);
  border: 1px solid var(--dark-line);
  background: var(--ink);
}
.company-thesis-heading { display: flex; gap: 1.3rem; align-items: flex-start; }
.company-thesis-heading p {
  margin: 0 0 0.35rem;
  color: #91a4b3;
  font-family: var(--utility);
  font-size: 0.62rem;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.company-thesis-heading h3 {
  margin: 0;
  color: var(--paper);
  font-family: var(--display);
  font-size: clamp(2rem, 4vw, 4rem);
  font-weight: 540;
  letter-spacing: -0.04em;
  line-height: 0.92;
  text-transform: uppercase;
}
.company-thesis:nth-child(2) .ticker { background: #ffc18a; }
.ceg-thesis .ticker { background: var(--blue-soft); }

.mini-scenarios,
.proof-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 2.4rem;
  background: var(--dark-line);
}
.mini-scenarios section,
.proof-grid section { padding: 1.5rem; background: var(--ink-soft); }
.mini-scenarios h4,
.proof-grid h4 {
  margin: 0 0 1.25rem;
  color: var(--mint);
  font-family: var(--utility);
  font-size: 0.62rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.mini-scenarios section:nth-child(2) h4 { color: var(--blue-soft); }
.mini-scenarios section:nth-child(3) h4,
.proof-falsifier h4 { color: #ffc18a; }
.mini-scenarios p { margin: 0; color: #d2dce2; font-size: 0.92rem; }
.proof-grid { margin-top: 1px; }
.proof-grid ul { margin: 0; padding-left: 1rem; color: #b9c6cf; font-size: 0.84rem; }
.proof-grid li + li { margin-top: 0.6rem; }
.proof-falsifier { box-shadow: inset 0 3px 0 var(--signal); }

.evidence-ledger { align-items: start; }
.source-receipts { display: grid; gap: 1.2rem; }
.compact-receipt { box-shadow: 8px 8px 0 var(--blue-soft); }
.compact-receipt h3 { font-size: clamp(1.45rem, 2.5vw, 2.4rem); }
.compact-receipt dl { margin: 1.6rem 0; }

footer {
  min-height: 100px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--muted);
  border-top: 1px solid var(--line);
  font-family: var(--utility);
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

@keyframes settle {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 980px) {
  .masthead {
    grid-template-columns: minmax(0, 1fr) auto auto;
    gap: clamp(0.7rem, 2.5vw, 1.4rem);
  }
  .desktop-nav { display: none; }
  .nav-disclosure {
    position: relative;
    z-index: 20;
    grid-column: 3;
    grid-row: 1;
    display: block;
    justify-self: end;
    font-family: var(--utility);
  }
  .nav-toggle {
    min-height: 44px;
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0 0.2rem;
    color: var(--ink);
    cursor: pointer;
    list-style: none;
    font-size: 0.64rem;
    font-weight: 850;
    letter-spacing: 0.11em;
    text-transform: uppercase;
  }
  .nav-toggle::-webkit-details-marker { display: none; }
  .nav-toggle-mark {
    position: relative;
    width: 18px;
    height: 10px;
  }
  .nav-toggle-mark::before,
  .nav-toggle-mark::after {
    content: "";
    position: absolute;
    left: 0;
    width: 18px;
    height: 2px;
    background: var(--sapphire);
    transition: transform 160ms ease;
  }
  .nav-toggle-mark::before { top: 1px; }
  .nav-toggle-mark::after { bottom: 1px; }
  .nav-disclosure[open] .nav-toggle { color: var(--sapphire); }
  .nav-disclosure[open] .nav-toggle-mark::before {
    transform: translateY(3px) rotate(45deg);
  }
  .nav-disclosure[open] .nav-toggle-mark::after {
    transform: translateY(-3px) rotate(-45deg);
  }
  .mobile-nav {
    position: absolute;
    top: calc(100% + 1rem);
    right: 0;
    width: min(22rem, calc(100vw - 2rem));
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.55rem 0 0.55rem 7px;
    color: var(--paper);
    background:
      linear-gradient(to bottom, var(--sapphire) 0 54%, var(--signal) 54% 72%, var(--mint) 72%) left / 7px 100% no-repeat,
      var(--ink);
    border: 1px solid var(--dark-line);
    box-shadow: 10px 10px 0 var(--blue-soft);
  }
  .mobile-nav a {
    min-height: 46px;
    display: flex;
    align-items: center;
    padding: 0.75rem 1.1rem;
    color: #dce4e9;
    border-top: 1px solid var(--dark-line);
  }
  .mobile-nav a:first-child { border-top: 0; }
  .mobile-nav a:hover,
  .mobile-nav a:focus-visible {
    color: var(--paper);
    background: rgba(36, 104, 220, 0.16);
  }
  .release-note {
    grid-column: 2;
    grid-row: 1;
  }
  .release-text {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }
  .hero { grid-template-columns: minmax(0, 1fr); min-height: auto; }
  .system-stack { max-width: 640px; }
  .section-heading { grid-template-columns: 0.5fr 1.5fr; }
  .section-heading > p:last-child { grid-column: 2; }
  .compute-grid { grid-template-columns: 1fr; }
  .card-role { min-height: 0; }
  .lane-catalog { grid-template-columns: 1fr 1fr; }
  .research-hero { grid-template-columns: 1fr; min-height: auto; }
  .question-ledger { max-width: 680px; }
  .scenario-grid,
  .thesis-detail-grid { grid-template-columns: 1fr; }
  .scenario { min-height: auto; border-right: 0; border-bottom: 1px solid var(--dark-line); }
  .scenario:last-child { border-bottom: 0; }
  .evidence-section { grid-template-columns: 1fr; }
  .comparison-heading { grid-template-columns: 1fr; }
  .comparison-spine { grid-template-columns: 1fr; }
  .comparison-axis {
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: auto;
    border-inline: 0;
    border-block: 1px solid var(--dark-line);
  }
  .comparison-axis span {
    min-height: 44px;
    border-right: 1px solid var(--dark-line);
    border-bottom: 0;
    writing-mode: horizontal-tb;
    transform: none;
  }
  .comparison-axis span:last-child { border-right: 0; }
  .comparison-reading,
  .mini-scenarios,
  .proof-grid { grid-template-columns: 1fr; }
}

@media (max-width: 700px) {
  body { font-size: 16px; }
  .masthead,
  main > section:not(.inference),
  footer { width: min(100% - 32px, 620px); }
  .masthead { min-height: 76px; }
  .hero { gap: 4.5rem; padding: 76px 0 96px; }
  h1 { font-size: 2.85rem; }
  .hero-actions { display: grid; }
  .system-stack { box-shadow: 12px 12px 0 var(--blue-soft); }
  .system-stack figcaption strong { font-size: clamp(1.7rem, 8vw, 3.7rem); }
  .system-stack li { grid-template-columns: 1.7rem 1fr; }
  .system-stack li.authority-layer { margin-inline: 0; padding-inline: 0; }
  .system-stack .state { grid-column: 2; }
  .compute, .contract, .public-status { padding: 92px 0; }
  .section-heading,
  .contract,
  .public-status { grid-template-columns: minmax(0, 1fr); gap: 2.5rem; }
  .section-heading h2 { font-size: clamp(2.6rem, 14vw, 3.2rem); }
  .section-heading > p:last-child { grid-column: 1; }
  .inference { padding-block: 92px; }
  .lane-catalog { grid-template-columns: 1fr; }
  .lane-catalog li { min-height: 220px; }
  .lane-catalog h3 { font-size: clamp(1.8rem, 8vw, 2.8rem); }
  .contract-steps .gate-step { margin-left: 0; }
  .evidence-grid { grid-template-columns: 1fr; }
  .evidence-grid .snapshot-card { grid-column: 1; }
  .research-hero { gap: 4rem; padding: 76px 0 96px; }
  .question-ledger { box-shadow: 10px 10px 0 var(--blue-soft); }
  .change-ledger li { grid-template-columns: 48px minmax(0, 1fr); gap: 1rem; }
  .thesis-heading { grid-template-columns: 1fr; }
  .review-stamp { width: 78px; }
  .history-section { grid-template-columns: 1fr; align-items: start; }
  .history-section > a { grid-column: 1; }
  .comparison-section,
  .coverage-section { padding-block: 92px; }
  .comparison-company header,
  .company-thesis-heading { align-items: flex-start; flex-direction: column; }
  .fact-register div { grid-template-columns: 1fr; gap: 0.3rem; }
  footer { flex-direction: column; align-items: flex-start; justify-content: center; gap: 0.35rem; }
}

@media (max-width: 360px) {
  .wordmark { font-size: 0.66rem; letter-spacing: 0.09em; }
  .hero-facts { display: grid; }
  .compute-card { padding: 1.35rem; }
  .compute-card dl div, .snapshot-card dl div { grid-template-columns: 1fr; gap: 0.3rem; }
  .snapshot-heading { flex-wrap: wrap; }
  .freshness-badge { flex-basis: 100%; margin-left: 0; }
  .question-ledger dl div,
  .source-receipt dl div { grid-template-columns: 1fr; gap: 0.35rem; }
  .change-ledger li { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
  .nav-toggle-mark::before,
  .nav-toggle-mark::after { transition-duration: 0.01ms !important; }
}