:root {
  color-scheme: light;
  --font-sans: "Instrument Sans", "Aptos", "Inter", ui-sans-serif, system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
  --font-serif: "Instrument Serif", Georgia, serif;
  --ink: #121719;
  --muted: #64707a;
  --surface: #fffdf7;
  --wash: #f4f1e8;
  --line: #d9ded6;
  --charcoal: #151d1b;
  --lime: #c8ff52;
  --teal: #008c7b;
  --teal-soft: #dff3ec;
  --amber: #ffbd3d;
  --rose: #ff6f61;
  --blue: #4a70e8;
  --shadow: 0 28px 80px rgba(18, 23, 25, 0.14);
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  background:
    linear-gradient(90deg, rgba(18, 23, 25, 0.045) 1px, transparent 1px),
    linear-gradient(0deg, rgba(18, 23, 25, 0.04) 1px, transparent 1px),
    var(--wash);
  background-size: 46px 46px;
  color: var(--ink);
  font-family: var(--font-sans);
  font-optical-sizing: auto;
}

a {
  color: inherit;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  min-height: 66px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 12px clamp(18px, 5vw, 72px);
  border-bottom: 1px solid rgba(18, 23, 25, 0.1);
  background: rgba(244, 241, 232, 0.92);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--charcoal);
  font-weight: 820;
  text-decoration: none;
}

.brand span {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--charcoal);
  color: var(--lime);
  font: 700 0.94rem var(--font-mono);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.case-language-switch {
  display: flex;
  align-items: center;
  gap: 5px;
}

.case-language-switch a {
  min-height: 32px;
  display: inline-flex;
  align-items: center;
  padding: 0 9px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font: 700 0.68rem var(--font-mono);
  text-decoration: none;
}

.case-language-switch a[aria-current="page"] {
  border-color: var(--teal);
  background: var(--teal);
  color: var(--surface);
}

.header-actions p,
.eyebrow {
  margin: 0;
  color: var(--teal);
  font: 700 0.73rem var(--font-mono);
  text-transform: uppercase;
}

.header-actions p {
  color: var(--muted);
}

.header-actions a,
.primary-button,
.secondary-button {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  border-radius: 8px;
  font-weight: 760;
  text-decoration: none;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease;
}

.header-actions a,
.primary-button {
  background: var(--charcoal);
  color: var(--surface);
}

.secondary-button {
  border: 1px solid rgba(255, 253, 247, 0.35);
  color: var(--surface);
}

.header-actions a:hover,
.primary-button:hover,
.secondary-button:hover {
  transform: translateY(-1px);
}

.page-shell {
  width: min(1160px, calc(100% - 36px));
  margin: 0 auto;
}

.hero {
  padding: clamp(34px, 6vw, 76px) 0 30px;
}

.hero-grid {
  display: block;
}

.hero-copy {
  min-height: clamp(440px, 58vw, 560px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(28px, 5vw, 58px);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(0, 140, 123, 0.18), transparent 36%),
    radial-gradient(circle at 82% 20%, rgba(200, 255, 82, 0.28), transparent 28%),
    var(--charcoal);
  color: var(--surface);
  box-shadow: var(--shadow);
}

.hero-copy h1 {
  max-width: 820px;
  margin: 18px 0;
  font-size: clamp(3rem, 7.2vw, 6.8rem);
  line-height: 0.9;
  letter-spacing: 0;
}

.hero-copy h1 span {
  display: block;
  color: var(--lime);
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 500;
}

.lead {
  max-width: 760px;
  margin: 0;
  color: rgba(255, 253, 247, 0.88);
  font-size: clamp(1.15rem, 2.2vw, 1.55rem);
  line-height: 1.38;
}

.scope-note {
  max-width: 660px;
  margin: 22px 0 0;
  color: rgba(255, 253, 247, 0.64);
  font-size: 0.98rem;
  line-height: 1.55;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.hero-actions .primary-button {
  background: var(--lime);
  color: var(--charcoal);
}

.hero-panel {
  display: grid;
  grid-template-columns: minmax(120px, 0.2fr) minmax(0, 0.72fr) minmax(240px, 0.58fr);
  gap: clamp(16px, 3vw, 34px);
  align-items: center;
  margin-top: 14px;
  padding: clamp(18px, 3vw, 28px);
  border: 1px solid rgba(18, 23, 25, 0.12);
  border-radius: 8px;
  background: rgba(255, 253, 247, 0.82);
}

.panel-kicker {
  margin: 0;
  color: var(--teal);
  font: 700 0.73rem var(--font-mono);
  text-transform: uppercase;
}

.hero-panel h2 {
  margin: 0;
  font-size: clamp(1.5rem, 3vw, 2.85rem);
  line-height: 1;
}

.hero-panel p:not(.panel-kicker) {
  margin: 0;
  color: #394247;
  font-size: 0.98rem;
  line-height: 1.5;
}

.proof-flow {
  display: grid;
  grid-template-columns: auto minmax(24px, 1fr) auto minmax(24px, 1fr) auto minmax(24px, 1fr) auto;
  align-items: center;
  gap: 10px;
  margin-top: 12px;
  padding: 14px 18px;
  border: 1px solid rgba(18, 23, 25, 0.12);
  border-radius: 8px;
  background: rgba(255, 253, 247, 0.78);
}

.proof-flow span {
  color: var(--charcoal);
  font: 800 clamp(0.78rem, 1.4vw, 0.95rem) var(--font-mono);
  text-transform: uppercase;
}

.proof-flow i {
  display: block;
  height: 2px;
  background: linear-gradient(90deg, var(--teal), var(--lime));
}

.thesis {
  padding: 38px 0 22px;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(220px, 0.42fr) minmax(0, 1fr);
  gap: clamp(22px, 4vw, 58px);
  align-items: start;
  text-align: left;
}

.section-copy h2 {
  margin: 10px 0 0;
  max-width: 920px;
  font-size: clamp(2rem, 4.2vw, 4.15rem);
  line-height: 1;
  text-align: left;
}

.thesis-statement {
  max-width: 1040px;
  margin: 0;
  padding: clamp(18px, 4vw, 42px) 0;
  text-align: left;
}

.thesis-statement h2,
.thesis-statement h3 {
  max-width: 900px;
  margin: 12px 0 0;
  font-size: clamp(2.3rem, 5.2vw, 5.4rem);
  line-height: 0.96;
}

.thesis-statement h3 {
  font-weight: 820;
}

.thesis-statement > p:not(.eyebrow) {
  max-width: 720px;
  margin: 18px 0 0;
  color: #3e484e;
  font-size: clamp(1.02rem, 1.45vw, 1.22rem);
  line-height: 1.5;
}

.equation-strip {
  display: grid;
  grid-template-columns:
    minmax(120px, 1fr) auto minmax(120px, 1fr) auto minmax(120px, 1fr) auto
    minmax(120px, 1fr) minmax(150px, 0.9fr);
  gap: 8px;
  align-items: stretch;
  margin-top: 26px;
  max-width: 1060px;
}

.equation-strip article,
.equation-strip strong {
  min-height: 92px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 16px;
  border: 1px solid rgba(18, 23, 25, 0.12);
  border-radius: 8px;
  background: var(--surface);
}

.equation-strip b,
.equation-strip strong {
  color: var(--charcoal);
  font-size: clamp(1.25rem, 2.2vw, 1.9rem);
  line-height: 1;
}

.equation-strip span {
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.88rem;
}

.equation-strip i {
  display: grid;
  place-items: center;
  color: var(--teal);
  font: 800 1rem var(--font-mono);
  font-style: normal;
}

.equation-strip strong {
  background: var(--lime);
  text-transform: none;
}

.section-copy p {
  margin: 0;
  max-width: 760px;
  color: #3e484e;
  font-size: clamp(1.02rem, 1.5vw, 1.24rem);
  line-height: 1.58;
  text-align: left;
}

.section-block {
  padding: clamp(46px, 6.5vw, 82px) 0;
}

.section-marker span {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 8px;
  background: var(--charcoal);
  color: var(--lime);
  font: 700 0.84rem var(--font-mono);
}

.section-marker .eyebrow {
  margin-top: 12px;
}

.cost-grid article,
.case-comparison article,
.execution-ladder article {
  position: relative;
  min-height: 0;
  padding: 24px;
  border: 1px solid rgba(18, 23, 25, 0.12);
  border-radius: 8px;
  background: rgba(255, 253, 247, 0.82);
}

.rank {
  display: inline-grid;
  place-items: center;
  width: 35px;
  height: 35px;
  border-radius: 999px;
  background: var(--teal);
  color: var(--surface);
  font: 700 0.8rem var(--font-mono);
}

.cost-grid h3,
.case-comparison h3,
.execution-ladder h3,
.decision-rules h3 {
  margin: 18px 0 0;
  font-size: 1.45rem;
  line-height: 1.08;
}

.cost-grid p,
.case-comparison p,
.execution-ladder p,
.decision-rules p {
  margin: 12px 0 0;
  color: var(--muted);
  line-height: 1.55;
}

.case-comparison b {
  display: block;
  margin-top: 18px;
  color: var(--charcoal);
  font-size: 0.9rem;
  line-height: 1.45;
}

.stage-chart,
.cost-stack {
  margin-top: 18px;
  padding: clamp(22px, 4vw, 34px);
  border: 1px solid rgba(18, 23, 25, 0.12);
  border-radius: 8px;
  background: var(--surface);
}

.priority-matrix {
  margin-top: 34px;
  margin-right: auto;
  margin-left: 0;
  width: 100%;
  overflow: hidden;
  border: 1px solid rgba(18, 23, 25, 0.12);
  border-radius: 8px;
  background: var(--surface);
}

.priority-head,
.priority-matrix article {
  display: grid;
  grid-template-columns: minmax(170px, 1.1fr) repeat(3, minmax(0, 1fr));
  gap: 1px;
  align-items: stretch;
}

.priority-head {
  background: var(--charcoal);
  color: rgba(255, 253, 247, 0.72);
  font: 700 0.72rem var(--font-mono);
  text-transform: uppercase;
}

.priority-head span,
.priority-matrix b,
.heat {
  min-height: 58px;
  display: flex;
  align-items: center;
  padding: 14px 16px;
}

.priority-matrix article {
  border-top: 1px solid var(--line);
}

.priority-matrix b {
  background: rgba(244, 241, 232, 0.8);
  font-size: 1.02rem;
}

.heat {
  justify-content: center;
  color: var(--charcoal);
  font: 800 0.76rem var(--font-mono);
  text-transform: uppercase;
}

.heat.high {
  background: var(--lime);
}

.heat.mid {
  background: #8ee8dc;
}

.heat.low {
  background: rgba(18, 23, 25, 0.08);
  color: var(--muted);
}

.matrix-rule {
  display: flex;
  gap: 8px;
  align-items: center;
  padding: 15px 18px;
  border-top: 1px solid var(--line);
  background: var(--charcoal);
  color: rgba(255, 253, 247, 0.76);
}

.matrix-rule strong {
  color: var(--lime);
}

.proof-curve {
  display: grid;
  grid-template-columns: minmax(220px, 0.42fr) minmax(0, 1fr);
  gap: clamp(18px, 4vw, 46px);
  align-items: stretch;
  margin-top: 16px;
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid rgba(18, 23, 25, 0.12);
  border-radius: 8px;
  background: rgba(255, 253, 247, 0.82);
}

.curve-copy h3 {
  margin: 10px 0 0;
  font-size: clamp(1.45rem, 3vw, 2.7rem);
  line-height: 1;
}

.curve-visual {
  position: relative;
  min-height: 230px;
  border-left: 2px solid rgba(18, 23, 25, 0.18);
  border-bottom: 2px solid rgba(18, 23, 25, 0.18);
  background:
    linear-gradient(90deg, rgba(18, 23, 25, 0.055) 1px, transparent 1px),
    linear-gradient(0deg, rgba(18, 23, 25, 0.055) 1px, transparent 1px);
  background-size: 74px 58px;
}

.curve-line {
  position: absolute;
  left: 12%;
  right: 9%;
  bottom: 26%;
  height: 58%;
  border-bottom: 6px solid var(--teal);
  border-right: 6px solid var(--lime);
  border-radius: 0 0 90px 0;
  transform: skewX(-18deg);
  transform-origin: bottom left;
}

.curve-dot {
  position: absolute;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 68px;
  min-height: 34px;
  padding: 0 10px;
  border-radius: 999px;
  background: var(--charcoal);
  color: var(--surface);
  font: 800 0.7rem var(--font-mono);
  text-transform: uppercase;
}

.dot-one {
  left: 10%;
  bottom: 18%;
}

.dot-two {
  left: 43%;
  bottom: 38%;
}

.dot-three {
  right: 5%;
  top: 12%;
  background: var(--lime);
  color: var(--charcoal);
}

.curve-axis {
  position: absolute;
  color: var(--muted);
  font: 700 0.68rem var(--font-mono);
  text-transform: uppercase;
}

.curve-axis.y {
  top: 8px;
  left: 12px;
}

.curve-axis.x {
  right: 8px;
  bottom: 8px;
}

.chart-title-row {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: end;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.chart-title-row h3 {
  margin: 0;
  font-size: clamp(1.55rem, 3vw, 2.5rem);
}

.stage-row {
  display: grid;
  grid-template-columns: 90px minmax(0, 1fr);
  gap: 8px 14px;
  align-items: center;
  padding: 12px 0;
  border-top: 1px solid var(--line);
}

.stage-row span {
  grid-row: span 2;
  color: var(--muted);
  font: 700 0.74rem var(--font-mono);
  text-transform: uppercase;
}

.bar {
  width: var(--width);
  min-width: 170px;
  padding: 10px 12px;
  border-radius: 999px;
  color: var(--surface);
  font-size: 0.86rem;
  font-weight: 780;
}

.bar.relevance {
  background: var(--teal);
}

.bar.distribution {
  background: var(--blue);
}

.dark-block {
  margin-inline: calc(50% - 50vw);
  padding-inline: max(18px, calc((100vw - 1160px) / 2));
  background: var(--charcoal);
  color: var(--surface);
}

.dark-block .section-marker span {
  background: var(--lime);
  color: var(--charcoal);
}

.dark-block .section-copy p,
.dark-block .metric-rail span,
.dark-block .economics-claim p,
.dark-block .chart-note {
  color: rgba(255, 253, 247, 0.7);
}

.dark-block .economics-board {
  border-color: rgba(255, 253, 247, 0.14);
  background: rgba(255, 253, 247, 0.06);
}

.economics-board {
  display: grid;
  grid-template-columns: minmax(250px, 0.85fr) minmax(280px, 1.15fr);
  gap: 1px;
  margin-top: 34px;
  overflow: hidden;
  border: 1px solid rgba(18, 23, 25, 0.12);
  border-radius: 8px;
  background: rgba(255, 253, 247, 0.14);
}

.economics-claim,
.metric-rail,
.retail-price-map {
  padding: clamp(20px, 3vw, 30px);
}

.economics-claim {
  grid-row: span 2;
  background: rgba(255, 253, 247, 0.07);
}

.economics-claim h3 {
  margin: 12px 0 0;
  font-size: clamp(1.8rem, 3.8vw, 3.8rem);
  line-height: 0.98;
}

.economics-claim p:not(.eyebrow) {
  margin: 16px 0 0;
  line-height: 1.5;
}

.metric-rail {
  display: grid;
  gap: 0;
  background: rgba(255, 253, 247, 0.04);
}

.metric-rail a {
  display: grid;
  grid-template-columns: minmax(110px, 0.42fr) minmax(0, 1fr);
  gap: 16px;
  align-items: baseline;
  padding: 15px 0;
  border-top: 1px solid rgba(255, 253, 247, 0.12);
  text-decoration: none;
}

.metric-rail a:first-child {
  border-top: 0;
  padding-top: 0;
}

.metric-rail strong {
  color: var(--lime);
  font: 800 clamp(1.45rem, 3vw, 2.45rem) var(--font-mono);
  line-height: 1;
}

.metric-rail span {
  font-size: 0.96rem;
  line-height: 1.45;
}

.retail-price-map {
  border-top: 1px solid rgba(255, 253, 247, 0.12);
}

.cost-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 12px;
  margin-top: 34px;
}

.cost-grid article {
  padding: 20px;
}

.cost-grid h3 {
  margin-top: 12px;
  font-size: clamp(1.08rem, 2vw, 1.32rem);
}

.cost-grid p {
  font-size: 0.94rem;
}

.cost-number {
  display: block;
  color: var(--lime);
  font: 800 clamp(1.65rem, 3vw, 2.7rem) var(--font-mono);
  line-height: 1;
  overflow-wrap: anywhere;
}

.cost-grid a,
.case-comparison a {
  display: inline-flex;
  margin-top: 14px;
  color: var(--teal);
  font: 700 0.78rem var(--font-mono);
  text-transform: uppercase;
  text-decoration: none;
}

.dark-block .cost-grid a {
  color: var(--lime);
}

.stack-bar {
  display: flex;
  min-height: 64px;
  overflow: hidden;
  border: 1px solid rgba(255, 253, 247, 0.16);
  border-radius: 8px;
}

.stack {
  flex: var(--share) 0 0;
  min-width: 52px;
}

.manufacturing {
  background: var(--lime);
}

.freight {
  background: #8ee8dc;
}

.distributor {
  background: #6cc7ff;
}

.retailer {
  background: #ffcf68;
}

.trade {
  background: #ff8e75;
}

.brand-margin {
  background: #fffdf7;
}

.stack-legend {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin-top: 14px;
}

.stack-legend span {
  display: grid;
  grid-template-columns: 10px minmax(0, 1fr) auto;
  gap: 8px;
  align-items: center;
  padding: 9px 10px;
  border: 1px solid rgba(255, 253, 247, 0.12);
  border-radius: 8px;
  background: rgba(255, 253, 247, 0.06);
}

.stack-legend i {
  width: 10px;
  height: 10px;
  border-radius: 999px;
}

.stack-legend b,
.stack-legend em {
  font-size: 0.78rem;
  line-height: 1;
}

.stack-legend b {
  color: rgba(255, 253, 247, 0.86);
}

.stack-legend em {
  color: var(--lime);
  font-style: normal;
  font-weight: 800;
}

.chart-note {
  margin: 12px 0 0;
  font-size: 0.86rem;
  line-height: 1.5;
}

.case-comparison {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 12px;
  margin-top: 34px;
}

.case-comparison article {
  padding: 20px;
}

.case-comparison h3 {
  font-size: 1.28rem;
}

.case-comparison p,
.case-comparison b {
  font-size: 0.92rem;
}

.case-comparison b {
  margin-top: 14px;
}

.case-comparison span {
  display: inline-flex;
  padding: 7px 10px;
  border-radius: 999px;
  background: var(--teal-soft);
  color: var(--teal);
  font: 700 0.68rem var(--font-mono);
  text-transform: uppercase;
}

.case-risk span {
  background: #ffe8df;
  color: #b83422;
}

.failure-grid {
  margin-top: 12px;
}

.case-ledger {
  margin-top: 34px;
  overflow: hidden;
  border: 1px solid rgba(18, 23, 25, 0.12);
  border-radius: 8px;
  background: var(--surface);
}

.case-ledger article {
  display: grid;
  grid-template-columns: minmax(150px, 0.8fr) minmax(0, 1.35fr) minmax(0, 1fr) auto;
  gap: 18px;
  align-items: center;
  padding: 16px 18px;
  border-top: 1px solid var(--line);
}

.case-ledger .ledger-head {
  grid-template-columns: minmax(150px, 0.8fr) minmax(0, 1.35fr) minmax(0, 1fr) auto;
  border-top: 0;
  background: var(--charcoal);
  color: rgba(255, 253, 247, 0.7);
  font: 700 0.7rem var(--font-mono);
  text-transform: uppercase;
}

.case-ledger h3,
.case-ledger p,
.case-ledger b {
  margin: 0;
}

.case-ledger h3 {
  font-size: 1.12rem;
}

.case-ledger p,
.case-ledger b {
  color: var(--muted);
  line-height: 1.42;
}

.case-ledger b {
  color: var(--charcoal);
  font-size: 0.92rem;
}

.case-ledger a {
  color: var(--teal);
  font: 700 0.72rem var(--font-mono);
  text-transform: uppercase;
  text-decoration: none;
}

.case-ledger .is-risk {
  background: rgba(255, 232, 223, 0.34);
}

.case-ledger .is-risk a {
  color: #b83422;
}

.timing-matrix {
  position: relative;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  grid-template-rows: repeat(2, minmax(190px, auto));
  gap: 12px;
  margin-top: 34px;
  padding: 46px 0 0 46px;
}

.axis {
  position: absolute;
  color: rgba(255, 253, 247, 0.62);
  font: 700 0.72rem var(--font-mono);
  text-transform: uppercase;
}

.y-axis {
  top: 50%;
  left: 0;
  transform: translateY(-50%) rotate(-90deg);
  transform-origin: center;
}

.x-axis {
  right: 0;
  bottom: -26px;
}

.quadrant {
  padding: 24px;
  border: 1px solid rgba(255, 253, 247, 0.14);
  border-radius: 8px;
  background: rgba(255, 253, 247, 0.07);
}

.quadrant span {
  color: var(--lime);
  font: 700 0.72rem var(--font-mono);
  text-transform: uppercase;
}

.quadrant h3 {
  margin: 18px 0 0;
  font-size: clamp(1.45rem, 2.6vw, 2.4rem);
}

.quadrant p {
  margin: 10px 0 0;
  color: rgba(255, 253, 247, 0.7);
  line-height: 1.55;
}

.q2 {
  background: rgba(200, 255, 82, 0.14);
  border-color: rgba(200, 255, 82, 0.45);
}

.scenario-table {
  display: grid;
  margin-top: 34px;
  overflow: hidden;
  border: 1px solid rgba(18, 23, 25, 0.12);
  border-radius: 8px;
  background: var(--surface);
}

.scenario-table article {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr 1.08fr 1.12fr;
  gap: 16px;
  align-items: start;
  padding: 18px;
  border-top: 1px solid var(--line);
}

.scenario-table article:first-child {
  border-top: 0;
}

.scenario-header {
  background: var(--charcoal);
  color: var(--surface);
  font: 700 0.72rem var(--font-mono);
  text-transform: uppercase;
}

.scenario-table b {
  line-height: 1.35;
}

.scenario-table p {
  margin: 0;
  color: var(--muted);
  line-height: 1.48;
}

.scenario-board {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 34px;
}

.scenario-board article {
  min-height: 260px;
  display: grid;
  align-content: space-between;
  gap: 14px;
  padding: 22px;
  border: 1px solid rgba(18, 23, 25, 0.12);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(255, 253, 247, 0.88), rgba(255, 253, 247, 0.7)),
    var(--surface);
}

.scenario-board span {
  color: var(--teal);
  font: 700 0.68rem var(--font-mono);
  text-transform: uppercase;
}

.scenario-board h3 {
  margin: 0;
  font-size: clamp(2.3rem, 4.5vw, 4rem);
  line-height: 0.9;
}

.scenario-board p {
  margin: 0;
  color: var(--muted);
  line-height: 1.45;
}

.scenario-board b {
  display: block;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  color: var(--charcoal);
  font-size: 0.92rem;
  line-height: 1.35;
}

.scenario-board .is-ready {
  background: var(--charcoal);
  color: var(--surface);
}

.scenario-board .is-ready span,
.scenario-board .is-ready b {
  color: var(--lime);
}

.scenario-board .is-ready p {
  color: rgba(255, 253, 247, 0.7);
}

.scenario-board .is-ready b {
  border-color: rgba(255, 253, 247, 0.16);
}

.dark-block .scenario-board article {
  border-color: rgba(255, 253, 247, 0.16);
}

.dark-block .scenario-board .is-ready {
  border-color: rgba(200, 255, 82, 0.5);
  background: rgba(200, 255, 82, 0.12);
}

.execution-ladder {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(245px, 1fr));
  gap: 12px;
  margin-top: 34px;
}

.execution-ladder span {
  color: var(--teal);
  font: 700 0.72rem var(--font-mono);
  text-transform: uppercase;
}

.decision-rules {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 12px;
}

.decision-rules article {
  padding: 22px;
  border: 1px solid rgba(18, 23, 25, 0.12);
  border-radius: 8px;
  background: var(--surface);
}

.decision-rules h3,
.decision-rules p {
  margin: 0;
}

.decision-rules p {
  margin-top: 12px;
}

.sources-section {
  padding-top: 40px;
}

.source-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 10px;
  margin-top: 34px;
}

.source-list a {
  min-height: 78px;
  display: flex;
  align-items: center;
  padding: 16px;
  border: 1px solid rgba(18, 23, 25, 0.12);
  border-radius: 8px;
  background: rgba(255, 253, 247, 0.78);
  color: #334047;
  font-size: 0.9rem;
  line-height: 1.35;
  text-decoration: none;
}

.source-list a:hover {
  border-color: var(--teal);
  color: var(--teal);
}

.bottom-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  margin: 24px 0 72px;
  padding: clamp(24px, 4vw, 38px);
  border-radius: 8px;
  background: var(--charcoal);
  color: var(--surface);
}

.bottom-cta h2 {
  max-width: 760px;
  margin: 10px 0 0;
  font-size: clamp(1.8rem, 4vw, 3.4rem);
  line-height: 1;
}

.bottom-cta .primary-button {
  background: var(--lime);
  color: var(--charcoal);
  white-space: nowrap;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 28px clamp(18px, 5vw, 72px);
  border-top: 1px solid rgba(18, 23, 25, 0.12);
  background: var(--charcoal);
  color: rgba(255, 253, 247, 0.72);
  font-size: 0.86rem;
  font-weight: 650;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px 18px;
  font-size: 0.84rem;
}

.site-footer a {
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--lime);
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  filter: blur(10px);
  transition:
    opacity 800ms var(--ease),
    transform 800ms var(--ease),
    filter 800ms var(--ease);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, transform, filter;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}

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

  .hero-copy,
  .hero-panel {
    min-height: auto;
  }

  .hero-panel {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .signal-strip,
  .cost-grid,
  .case-comparison,
  .execution-ladder,
  .scenario-board,
  .source-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .equation-strip i {
    display: none;
  }

  .equation-strip strong {
    grid-column: 1 / -1;
  }

  .proof-curve {
    grid-template-columns: 1fr;
  }

  .proof-flow {
    grid-template-columns: 1fr;
    justify-items: start;
  }

  .proof-flow i {
    width: 2px;
    height: 18px;
    margin-left: 16px;
    background: linear-gradient(180deg, var(--teal), var(--lime));
  }

  .economics-board {
    grid-template-columns: 1fr;
  }

  .economics-claim {
    grid-row: auto;
  }

  .case-ledger .ledger-head {
    display: none;
  }

  .case-ledger article {
    grid-template-columns: 1fr;
    gap: 8px;
    align-items: start;
  }

  .scenario-table article {
    grid-template-columns: 1fr 1fr;
  }

  .scenario-header {
    display: none !important;
  }

  .scenario-table article:not(.scenario-header) {
    margin: 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: rgba(255, 253, 247, 0.72);
  }

  .scenario-table article + article {
    border-top: 1px solid var(--line);
  }

  .scenario-table b::before,
  .scenario-table p::before {
    content: attr(data-label);
    display: block;
    margin-bottom: 5px;
    color: var(--teal);
    font: 700 0.66rem var(--font-mono);
    text-transform: uppercase;
  }
}

@media (max-width: 680px) {
  .page-shell {
    width: min(100% - 24px, 1160px);
  }

  .site-header,
  .header-actions,
  .bottom-cta,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .header-actions p {
    display: none;
  }

  .hero {
    padding-top: 24px;
  }

  .hero-copy {
    padding: 24px;
  }

  .hero-copy h1 {
    font-size: clamp(2.8rem, 14vw, 4.3rem);
    line-height: 0.94;
  }

  .lead {
    font-size: 1.08rem;
  }

  .thesis,
  .section-block {
    padding-block: 42px;
  }

  .thesis-statement {
    text-align: left;
  }

  .thesis-pills {
    justify-content: flex-start;
  }

  .section-marker {
    display: flex;
    align-items: center;
    gap: 10px;
  }

  .section-marker .eyebrow {
    margin-top: 0;
  }

  .signal-strip,
  .cost-grid,
  .case-comparison,
  .execution-ladder,
  .decision-rules,
  .scenario-board,
  .source-list {
    grid-template-columns: 1fr;
  }

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

  .stage-row span {
    grid-row: auto;
  }

  .bar {
    width: 100%;
    min-width: 0;
  }

  .stack-bar {
    flex-direction: column;
  }

  .stack {
    min-height: 46px;
    width: 100%;
    flex-basis: auto;
  }

  .stack-legend {
    grid-template-columns: 1fr 1fr;
  }

  .chart-title-row {
    display: block;
  }

  .chart-title-row h3 {
    margin-top: 8px;
  }

  .priority-head {
    display: none;
  }

  .priority-matrix article {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
    padding: 12px;
  }

  .priority-matrix b {
    grid-column: 1 / -1;
    min-height: auto;
    padding: 0 0 10px;
    background: transparent;
  }

  .heat {
    min-height: 42px;
    padding: 9px 6px;
    font-size: 0.66rem;
  }

  .matrix-rule {
    display: block;
  }

  .metric-rail a {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .curve-visual {
    min-height: 190px;
  }

  .scenario-board article {
    min-height: auto;
  }

  .timing-matrix {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
    padding: 0;
  }

  .axis {
    display: none;
  }

  .q2 {
    grid-row: 1;
  }

  .scenario-table article {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 16px;
  }

  .scenario-table {
    border: 0;
    background: transparent;
  }

  .scenario-table article:not(.scenario-header) {
    margin: 0 0 12px;
  }

  .site-footer nav {
    justify-content: flex-start;
  }
}

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

  .reveal {
    opacity: 1;
    transform: none;
    filter: none;
  }
}