:root {
  --ink: oklch(16% 0.01 70);
  --ink-soft: oklch(24% 0.012 70);
  --paper: oklch(94% 0.018 80);
  --paper-dim: oklch(87% 0.02 80);
  --graphite: oklch(42% 0.014 75);
  --steel: oklch(56% 0.018 245);
  --signal: oklch(58% 0.16 38);
  --signal-dark: oklch(42% 0.13 38);
  --moss: oklch(45% 0.06 145);
  --gold: oklch(68% 0.1 82);
  --line-dark: oklch(94% 0.018 80 / 0.16);
  --line-light: oklch(20% 0.01 70 / 0.14);
  --surface: oklch(97% 0.012 82);
  --surface-warm: oklch(90% 0.032 78);
  --shadow: 0 28px 90px oklch(12% 0.01 70 / 0.32);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, system-ui, sans-serif;
  letter-spacing: 0;
}

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

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: minmax(170px, 1fr) auto minmax(170px, 1fr);
  align-items: center;
  gap: 24px;
  padding: 18px clamp(18px, 4vw, 56px);
  color: var(--paper);
  background: oklch(16% 0.01 70 / 0.84);
  border-bottom: 1px solid var(--line-dark);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  width: max-content;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid currentColor;
  border-radius: 4px;
  font-family: "IBM Plex Mono", monospace;
  font-weight: 600;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 14px;
}

.brand small,
.nav-links a,
.header-action,
.eyebrow,
.hero-ledger span,
.argument-rail span,
.rail-node span,
.route-step span,
.proof-ledger span {
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.brand small {
  margin-top: 3px;
  color: oklch(94% 0.018 80 / 0.68);
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(14px, 2vw, 30px);
}

.nav-links a {
  color: oklch(94% 0.018 80 / 0.76);
}

.nav-links a:hover,
.header-action:hover {
  color: var(--gold);
}

.header-action {
  justify-self: end;
  color: var(--paper);
}

.hero {
  position: relative;
  display: grid;
  min-height: 100svh;
  padding: 132px clamp(18px, 5vw, 72px) 38px;
  overflow: hidden;
  background:
    radial-gradient(circle at 84% 18%, oklch(58% 0.16 38 / 0.2), transparent 28%),
    linear-gradient(135deg, var(--ink), oklch(20% 0.015 88) 58%, oklch(13% 0.014 70));
  color: var(--paper);
}

#producer-canvas,
.hero-grain {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

#producer-canvas {
  opacity: 0.82;
}

.hero-grain {
  pointer-events: none;
  opacity: 0.2;
  background-image:
    linear-gradient(oklch(94% 0.018 80 / 0.045) 1px, transparent 1px),
    linear-gradient(90deg, oklch(94% 0.018 80 / 0.035) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom, black, transparent 86%);
}

.hero-content {
  position: relative;
  z-index: 1;
  align-self: center;
  width: min(1080px, 100%);
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--gold);
}

.eyebrow.dark {
  color: var(--signal-dark);
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 1050px;
  margin-bottom: 28px;
  font-size: clamp(58px, 12vw, 158px);
  font-weight: 760;
  line-height: 0.9;
  letter-spacing: 0;
}

h2 {
  max-width: 940px;
  margin-bottom: 22px;
  font-size: clamp(34px, 5.6vw, 74px);
  font-weight: 760;
  line-height: 1;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 12px;
  font-size: clamp(21px, 2.2vw, 28px);
  line-height: 1.12;
}

.nowrap {
  white-space: nowrap;
  word-spacing: 0.12em;
}

p {
  color: color-mix(in oklch, currentColor 78%, transparent);
  font-size: 16px;
  line-height: 1.64;
}

.hero-copy {
  max-width: 760px;
  margin-bottom: 34px;
  color: oklch(94% 0.018 80 / 0.82);
  font-size: clamp(19px, 2.1vw, 25px);
  line-height: 1.42;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 14px 18px;
  border: 1px solid transparent;
  border-radius: 4px;
  font-weight: 700;
  line-height: 1;
}

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

.button.primary:hover {
  background: var(--signal-dark);
}

.button.secondary {
  border-color: oklch(94% 0.018 80 / 0.34);
  background: oklch(16% 0.01 70 / 0.48);
  color: var(--paper);
}

.button.secondary.light {
  background: transparent;
}

.button.text-button {
  color: var(--paper);
  border-color: transparent;
  background: transparent;
}

.hero-ledger {
  position: relative;
  z-index: 1;
  align-self: end;
  display: grid;
  width: min(960px, 100%);
  grid-template-columns: repeat(3, 1fr);
  margin-top: 72px;
  border-top: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
}

.hero-ledger div {
  min-height: 90px;
  padding: 18px;
  border-right: 1px solid var(--line-dark);
}

.hero-ledger div:last-child {
  border-right: 0;
}

.hero-ledger span {
  display: block;
  margin-bottom: 10px;
  color: oklch(94% 0.018 80 / 0.55);
}

.hero-ledger strong {
  font-size: clamp(17px, 2vw, 21px);
}

.section-shell {
  width: min(1220px, calc(100% - 36px));
  margin: 0 auto;
  padding: clamp(78px, 10vw, 132px) 0;
}

section[id] {
  scroll-margin-top: 92px;
}

.thesis-band {
  background: var(--paper);
}

.thesis-layout,
.ecosystem-layout,
.monetization-layout,
.signal-layout,
.close-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(300px, 0.95fr);
  gap: clamp(34px, 7vw, 92px);
  align-items: start;
}

.thesis-copy {
  padding-top: clamp(6px, 1.2vw, 18px);
}

.thesis-copy p {
  max-width: 690px;
  color: var(--graphite);
  font-size: clamp(17px, 1.8vw, 21px);
}

.problem-section {
  background:
    linear-gradient(90deg, oklch(20% 0.01 70 / 0.08) 1px, transparent 1px),
    var(--surface-warm);
  background-size: 36px 36px;
  border-top: 1px solid var(--line-light);
  border-bottom: 1px solid var(--line-light);
}

.problem-header {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1.1fr);
  gap: clamp(26px, 5vw, 72px);
  align-items: end;
  margin-bottom: clamp(34px, 6vw, 72px);
}

.argument-rail {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr 1fr 1.12fr;
  border-top: 1px solid var(--line-light);
  border-bottom: 1px solid var(--line-light);
}

.argument-rail article {
  min-height: 320px;
  padding: clamp(22px, 3vw, 34px);
  border-right: 1px solid var(--line-light);
  background: oklch(97% 0.012 82 / 0.48);
}

.argument-rail article:nth-child(even) {
  transform: translateY(28px);
  background: oklch(94% 0.018 80 / 0.78);
}

.argument-rail article:last-child {
  border-right: 0;
}

.argument-rail span,
.proof-ledger span,
.route-step span,
.rail-node span {
  display: block;
  color: var(--signal-dark);
}

.argument-rail span {
  margin-bottom: clamp(54px, 8vw, 112px);
}

.argument-rail p,
.proof-ledger p {
  margin-bottom: 0;
  color: var(--graphite);
}

.ecosystem-section {
  background:
    radial-gradient(circle at 18% 24%, oklch(68% 0.1 82 / 0.12), transparent 28%),
    var(--ink);
  color: var(--paper);
}

.ecosystem-intro {
  position: sticky;
  top: 112px;
}

.ecosystem-intro p {
  max-width: 620px;
  color: oklch(94% 0.018 80 / 0.72);
}

.rail-map {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 12px;
}

.rail-node {
  display: grid;
  min-height: 210px;
  align-content: space-between;
  padding: 22px;
  border: 1px solid var(--line-dark);
  border-radius: 8px;
  background: oklch(94% 0.018 80 / 0.055);
  box-shadow: 0 1px 0 oklch(94% 0.018 80 / 0.06) inset;
}

.rail-node:hover {
  border-color: oklch(68% 0.1 82 / 0.56);
  background: oklch(94% 0.018 80 / 0.09);
}

.rail-node strong {
  display: block;
  margin: 16px 0;
  color: var(--paper);
  font-size: clamp(25px, 3vw, 40px);
  line-height: 0.98;
}

.rail-node small {
  color: oklch(94% 0.018 80 / 0.66);
  font-size: 14px;
  line-height: 1.46;
}

.rail-node.ownership {
  grid-column: span 4;
  min-height: 260px;
}

.rail-node.growth {
  grid-column: span 2;
  background: oklch(45% 0.06 145 / 0.24);
}

.rail-node.launch,
.rail-node.income,
.rail-node.payments,
.rail-node.distribution {
  grid-column: span 3;
}

.rail-node.income {
  background: oklch(68% 0.1 82 / 0.16);
}

.monetization-band {
  background:
    linear-gradient(180deg, var(--paper), var(--paper-dim));
  color: var(--ink);
}

.monetization-layout > div:first-child {
  position: sticky;
  top: 112px;
}

.monetization-layout p {
  max-width: 650px;
  color: var(--graphite);
}

.route-stack {
  display: grid;
  gap: 14px;
}

.route-step {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 22px;
  align-items: start;
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid var(--line-light);
  background: var(--surface);
}

.route-step:first-child {
  border-radius: 8px 8px 0 0;
}

.route-step:last-child {
  border-radius: 0 0 8px 8px;
  background: var(--ink);
  color: var(--paper);
}

.route-step strong {
  font-size: clamp(21px, 2.4vw, 32px);
  line-height: 1.08;
}

.proof-section {
  background: var(--paper);
}

.section-heading {
  margin-bottom: clamp(34px, 6vw, 64px);
}

.section-lede {
  max-width: 780px;
  color: var(--graphite);
  font-size: clamp(17px, 1.7vw, 20px);
}

.proof-ledger {
  display: grid;
  border-top: 1px solid var(--line-light);
}

.proof-ledger a {
  display: grid;
  grid-template-columns: 80px minmax(180px, 0.7fr) minmax(0, 1fr);
  gap: clamp(16px, 3vw, 42px);
  align-items: baseline;
  padding: clamp(22px, 3vw, 34px) 0;
  border-bottom: 1px solid var(--line-light);
}

.proof-ledger a:hover strong {
  color: var(--signal-dark);
}

.proof-ledger strong {
  font-size: clamp(24px, 3.4vw, 42px);
  line-height: 1;
}

.signal-band {
  background: var(--surface-warm);
  border-top: 1px solid var(--line-light);
  border-bottom: 1px solid var(--line-light);
}

.signal-panel {
  padding: clamp(24px, 4vw, 46px);
  border: 1px solid var(--line-light);
  border-radius: 8px;
  background:
    linear-gradient(135deg, oklch(97% 0.012 82 / 0.72), oklch(87% 0.02 80 / 0.76));
  box-shadow: var(--shadow);
}

.signal-panel p {
  margin-bottom: 0;
  color: var(--ink-soft);
  font-size: clamp(19px, 2.2vw, 27px);
  line-height: 1.36;
}

.final-cta {
  background:
    radial-gradient(circle at 76% 10%, oklch(58% 0.16 38 / 0.2), transparent 32%),
    var(--moss);
  color: var(--paper);
}

.final-cta .section-shell {
  padding-bottom: clamp(92px, 12vw, 156px);
}

.final-cta p {
  max-width: 720px;
  color: oklch(94% 0.018 80 / 0.78);
  font-size: clamp(18px, 2vw, 22px);
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 22px clamp(18px, 4vw, 56px);
  background: var(--ink);
  color: oklch(94% 0.018 80 / 0.72);
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  text-transform: uppercase;
}

@media (max-width: 980px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .nav-links {
    display: none;
  }

  .thesis-layout,
  .ecosystem-layout,
  .monetization-layout,
  .signal-layout,
  .close-layout,
  .problem-header {
    grid-template-columns: 1fr;
  }

  .ecosystem-intro,
  .monetization-layout > div:first-child {
    position: static;
  }

  .argument-rail {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .argument-rail article:nth-child(even) {
    transform: none;
  }

  .argument-rail article:nth-child(2) {
    border-right: 0;
  }

  .argument-rail article:nth-child(1),
  .argument-rail article:nth-child(2) {
    border-bottom: 1px solid var(--line-light);
  }

  .rail-node.ownership,
  .rail-node.growth,
  .rail-node.launch,
  .rail-node.income,
  .rail-node.payments,
  .rail-node.distribution {
    grid-column: span 6;
    min-height: 190px;
  }
}

@media (max-width: 680px) {
  .site-header {
    gap: 14px;
    padding: 14px 18px;
  }

  .header-action {
    display: none;
  }

  .hero {
    min-height: 94svh;
    padding-top: 108px;
  }

  #producer-canvas {
    opacity: 0.42;
  }

  h1 {
    font-size: clamp(44px, 14vw, 58px);
    line-height: 0.94;
  }

  .hero-ledger {
    grid-template-columns: 1fr;
  }

  .hero-ledger div {
    min-height: 76px;
    border-right: 0;
    border-bottom: 1px solid var(--line-dark);
  }

  .hero-ledger div:last-child {
    border-bottom: 0;
  }

  .argument-rail,
  .proof-ledger a,
  .route-step {
    grid-template-columns: 1fr;
  }

  .argument-rail article,
  .argument-rail article:nth-child(2) {
    min-height: 0;
    border-right: 0;
    border-bottom: 1px solid var(--line-light);
  }

  .argument-rail article:last-child {
    border-bottom: 0;
  }

  .argument-rail span {
    margin-bottom: 28px;
  }

  .hero-actions,
  .button {
    width: 100%;
  }

  .site-footer {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}