:root {
  --background: #fbfaf7;
  --foreground: #101418;
  --ink: #071d38;
  --muted: #5e6874;
  --line: #e1ded6;
  --panel: #ffffff;
  --soft: #eef2ee;
  --green: #2c8b66;
  --blue: #2d71b8;
  --amber: #c58b27;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--background);
  color: var(--foreground);
  font-family: Inter, Aptos, "Segoe UI", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
h1, h2, h3, p { margin-top: 0; }

.site-shell {
  min-height: 100vh;
  overflow-x: hidden;
}

.topbar,
.hero-layout,
.signal-strip,
.product-section,
.platform-section > *,
.products-section > *,
.validation-section > *,
.cta-section,
.detail-hero,
.setup-section,
.method-demo-section,
.evidence-section,
.workflow-section,
.detail-system,
.product-nav-section,
.simple-hero,
.simple-grid {
  width: min(1240px, calc(100% - 40px));
  margin-left: auto;
  margin-right: auto;
}

.topbar {
  min-height: 76px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  border-bottom: 1px solid var(--line);
}

.brand,
.nav-links {
  display: flex;
  align-items: center;
}

.brand {
  gap: 11px;
  color: var(--ink);
  font-weight: 680;
}

.brand-mark {
  width: 34px;
  height: 34px;
  border: 1px solid #bec8c6;
  border-radius: 6px;
  display: grid;
  place-items: center;
  background: #ffffff;
  color: var(--ink);
  font-size: 15px;
}

.nav-links {
  gap: clamp(14px, 2.5vw, 30px);
  color: var(--muted);
  font-size: 14px;
  font-weight: 560;
}

.nav-links a[aria-current="page"],
.nav-links a:hover {
  color: var(--ink);
}

.eyebrow {
  margin: 0 0 13px;
  color: var(--green);
  font-size: 12px;
  font-weight: 720;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1 {
  margin-bottom: 22px;
  color: var(--ink);
  font-size: clamp(42px, 5vw, 72px);
  font-weight: 590;
  line-height: 1.03;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 0;
  color: var(--ink);
  font-size: clamp(28px, 3.2vw, 46px);
  font-weight: 590;
  line-height: 1.08;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 8px;
  color: var(--ink);
  font-size: 18px;
  font-weight: 660;
  line-height: 1.25;
}

.hero-section {
  min-height: calc(100vh - 77px);
  padding: clamp(42px, 7vw, 90px) 0 32px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.hero-layout {
  display: grid;
  grid-template-columns: minmax(390px, 0.82fr) minmax(520px, 1.18fr);
  align-items: center;
  gap: clamp(30px, 5vw, 76px);
}

.hero-text,
.simple-hero p,
.detail-hero p {
  max-width: 650px;
  color: #3f4852;
  font-size: clamp(17px, 1.25vw, 19px);
  line-height: 1.65;
}

.hero-actions {
  margin-top: 30px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.primary-action,
.secondary-action {
  min-height: 48px;
  border-radius: 6px;
  padding: 0 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 650;
}

.primary-action { background: var(--ink); color: #ffffff; }
.secondary-action { border: 1px solid #c8c4bc; color: var(--ink); }

.hero-visual,
.cockpit-visual,
.image-figure {
  margin: 0;
}

.hero-visual img,
.cockpit-visual img {
  width: 100%;
  border-radius: 8px;
  filter: drop-shadow(0 24px 46px rgba(23, 33, 45, 0.13));
}

.signal-strip {
  margin-top: clamp(36px, 6vw, 68px);
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.signal-strip span {
  min-height: 70px;
  padding: 20px 18px;
  border-right: 1px solid var(--line);
  color: #39434f;
  font-size: 14px;
  font-weight: 570;
}

.signal-strip span:last-child { border-right: 0; }

.mind-section {
  width: 100%;
  padding: clamp(76px, 10vw, 128px) clamp(20px, 4vw, 72px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--soft);
}

.mind-expansion,
.mind-section .section-heading,
.paper-grid {
  width: min(1240px, 100%);
  margin-left: auto;
  margin-right: auto;
}

.mind-expansion {
  margin-bottom: clamp(44px, 5vw, 68px);
  padding-bottom: clamp(38px, 4vw, 56px);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(18px, 2.4vw, 34px);
  border-bottom: 1px solid var(--line);
}

.mind-letter {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-left: clamp(14px, 1.4vw, 20px);
  border-left: 2px solid rgba(44, 139, 102, 0.4);
}

.mind-letter span {
  color: var(--green);
  font-size: clamp(58px, 8vw, 108px);
  font-weight: 560;
  line-height: 0.88;
  letter-spacing: 0;
}

.mind-letter strong {
  color: var(--ink);
  font-size: clamp(15px, 1.35vw, 20px);
  font-weight: 620;
  line-height: 1.2;
}

.mind-section .section-heading {
  margin-bottom: clamp(34px, 5vw, 58px);
}

.paper-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.paper-card {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: start;
  gap: 20px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  transition: border-color 0.14s, box-shadow 0.14s, transform 0.14s;
}

.paper-card:hover,
.paper-card:focus-visible {
  border-color: #b3c7bd;
  box-shadow: 0 18px 40px rgba(7, 29, 56, 0.09);
  transform: translateY(-2px);
}

.paper-icon {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border: 1px solid #cfdcd6;
  border-radius: 8px;
  background: rgba(44, 139, 102, 0.08);
  color: var(--green);
}

.paper-icon svg {
  width: 26px;
  height: 26px;
}

.paper-id {
  display: block;
  margin-bottom: 9px;
  color: var(--green);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px;
  font-weight: 650;
}

.paper-copy h3 {
  margin-bottom: 10px;
  font-size: 17px;
  line-height: 1.3;
}

.paper-authors {
  margin: 0 0 10px;
  color: var(--ink);
  font-size: 13px;
  font-weight: 560;
}

.paper-note {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

.paper-arrow {
  color: #9aa5b1;
  transition: color 0.14s;
}

.paper-arrow svg {
  width: 20px;
  height: 20px;
}

.paper-card:hover .paper-arrow,
.paper-card:focus-visible .paper-arrow {
  color: var(--green);
}

.product-section,
.platform-section,
.products-section,
.validation-section,
.detail-hero,
.setup-section,
.method-demo-section,
.evidence-section,
.workflow-section,
.detail-system,
.product-nav-section,
.simple-hero,
.simple-grid {
  padding: clamp(68px, 9vw, 118px) 0;
}

.product-section {
  display: grid;
  grid-template-columns: minmax(330px, 0.48fr) minmax(560px, 1fr);
  gap: clamp(28px, 5vw, 70px);
  align-items: center;
}

.bottleneck-grid {
  margin-top: 34px;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.compact-point {
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.compact-point p,
.stack-list p,
.product-card p,
.image-figure figcaption,
.workflow-steps p,
.detail-system li,
.simple-grid p {
  color: var(--muted);
  line-height: 1.58;
}

.platform-section {
  width: 100%;
  background: var(--soft);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.split-heading {
  display: grid;
  grid-template-columns: 0.86fr 0.62fr;
  gap: clamp(28px, 5vw, 72px);
  align-items: end;
}

.split-heading > p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.65;
}

.architecture-layout {
  margin-top: clamp(34px, 5vw, 58px);
  display: grid;
  grid-template-columns: minmax(470px, 0.94fr) minmax(360px, 0.72fr);
  gap: clamp(30px, 6vw, 82px);
  align-items: center;
}

.architecture-visual {
  position: relative;
  min-height: 500px;
  border: 1px solid #d7ddd5;
  border-radius: 8px;
  overflow: hidden;
  background:
    linear-gradient(rgba(7, 29, 56, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(7, 29, 56, 0.055) 1px, transparent 1px),
    #fbfcf8;
  background-size: 36px 36px;
}

.architecture-core,
.architecture-column {
  position: absolute;
  z-index: 2;
  border: 1px solid rgba(7, 29, 56, 0.14);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 16px 38px rgba(7, 29, 56, 0.09);
}

.architecture-column {
  width: 178px;
  padding: 18px;
  display: grid;
  gap: 10px;
}

.architecture-column span,
.architecture-core span {
  color: var(--green);
  font-size: 12px;
  font-weight: 720;
  text-transform: uppercase;
}

.architecture-column div {
  min-height: 46px;
  border: 1px solid #dce3dc;
  border-radius: 6px;
  padding: 12px;
  display: flex;
  align-items: center;
  background: #ffffff;
  color: var(--ink);
  font-size: 14px;
  font-weight: 650;
  line-height: 1.2;
}

.input-column { top: 74px; left: 42px; }
.output-column { top: 58px; right: 42px; }

.architecture-core {
  width: 260px;
  min-height: 184px;
  top: 164px;
  left: 50%;
  padding: 26px;
  transform: translateX(-50%);
  background: var(--ink);
  color: #ffffff;
}

.architecture-core strong {
  display: block;
  margin-top: 18px;
  color: #ffffff;
  font-size: 24px;
  font-weight: 680;
  line-height: 1.12;
}

.architecture-core p {
  margin: 14px 0 0;
  color: #d4dee7;
  font-size: 14px;
}

.stack-list {
  display: grid;
  gap: 0;
  border-top: 1px solid #d3dad2;
}

.stack-list article {
  display: grid;
  grid-template-columns: 54px 1fr;
  gap: 20px;
  padding: 24px 0;
  border-bottom: 1px solid #d3dad2;
}

.stack-list span {
  color: var(--blue);
  font-size: 13px;
  font-weight: 700;
}

.products-section {
  width: 100%;
  background: var(--ink);
  color: #ffffff;
}

.products-section h2,
.products-section h3 {
  color: #ffffff;
}

.products-section .eyebrow {
  color: #8fe0c4;
}

.product-mosaic {
  margin-top: clamp(34px, 5vw, 58px);
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  grid-auto-rows: minmax(172px, auto);
  gap: 14px;
}

.product-card {
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: rgba(255, 255, 255, 0.045);
}

.product-card span {
  margin-bottom: 44px;
  color: #8fe0c4;
  font-size: 13px;
  font-weight: 700;
}

.product-card:nth-child(1),
.product-card:nth-child(2) { grid-column: span 3; }
.product-card:nth-child(n + 3) { grid-column: span 2; }

.validation-section { background: #fbfaf7; }

.proof-grid {
  margin-top: clamp(34px, 5vw, 58px);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.proof-tile {
  min-height: 150px;
  padding: 28px 22px;
  border-right: 1px solid var(--line);
}

.proof-tile:last-child { border-right: 0; }

.proof-tile strong {
  display: block;
  margin-bottom: 12px;
  color: var(--ink);
  font-size: clamp(32px, 4.2vw, 54px);
  font-weight: 590;
  line-height: 1;
}

.proof-tile span,
.metric-tile span {
  color: var(--muted);
  line-height: 1.45;
}

.cta-section {
  margin-top: 42px;
  margin-bottom: 42px;
  padding: clamp(60px, 8vw, 96px) clamp(20px, 4vw, 72px);
  border: 1px solid #cfd6dd;
  border-radius: 8px;
  background: #ffffff;
  text-align: center;
}

.cta-section h2 {
  max-width: 850px;
  margin-left: auto;
  margin-right: auto;
}

.detail-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 260px;
  column-gap: clamp(30px, 6vw, 82px);
  row-gap: clamp(22px, 4vw, 40px);
  align-items: start;
  padding-top: clamp(38px, 5vw, 64px);
  padding-bottom: clamp(22px, 3vw, 36px);
}

.detail-metric {
  border-top: 3px solid var(--green);
  padding: 22px 0 0;
}

.detail-metric strong {
  display: block;
  margin-bottom: 10px;
  color: var(--ink);
  font-size: clamp(28px, 3vw, 40px);
  font-weight: 620;
  line-height: 1;
}

.detail-metric span {
  color: var(--muted);
}

.setup-section {
  border-top: 1px solid var(--line);
  padding-top: clamp(34px, 5vw, 56px);
}

.setup-section .split-heading {
  align-items: start;
}

.setup-section .section-heading {
  margin-bottom: clamp(26px, 4vw, 42px);
}

.transmission-setup .split-heading {
  grid-template-columns: minmax(320px, 0.58fr) minmax(620px, 1fr);
  gap: clamp(24px, 4vw, 52px);
}

.framework-scope-list {
  width: min(360px, 100%);
  margin-top: clamp(22px, 3vw, 34px);
  border-top: 1px solid #d8ded8;
  border-bottom: 1px solid #d8ded8;
  padding: 13px 0 2px;
}

.framework-scope-list > span {
  display: block;
  color: var(--green);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

.framework-scope-list ol {
  counter-reset: framework-scope;
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
}

.framework-scope-list li {
  counter-increment: framework-scope;
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 10px;
  padding: 9px 0;
  border-top: 1px solid #edf0ec;
  color: #263646;
  font-size: 14px;
  font-weight: 620;
  line-height: 1.25;
}

.framework-scope-list li::before {
  content: "0" counter(framework-scope);
  color: #7a8793;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px;
  font-weight: 650;
}

.setup-heading-side {
  display: grid;
  gap: 18px;
  align-self: start;
}

.setup-heading-side > p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.65;
}

.setup-figures {
  margin-top: 38px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.setup-figures.single {
  grid-template-columns: 1fr;
}

.image-figure {
  border: 1px solid #dce3dc;
  border-radius: 8px;
  overflow: hidden;
  background: #ffffff;
}

.image-figure img {
  width: 100%;
  background: #ffffff;
}

.image-figure figcaption {
  padding: 14px 16px 16px;
  border-top: 1px solid #edf0ec;
  font-size: 13px;
}

.method-view-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  align-items: stretch;
}

.method-world-model-card {
  margin: 0;
  border: 1px solid #d9ded6;
  border-radius: 8px;
  overflow: hidden;
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
  background: #ffffff;
  box-shadow: 0 14px 34px rgba(7, 29, 56, 0.07);
}

.method-world-model-card img {
  width: 100%;
  height: 258px;
  display: block;
  object-fit: contain;
  background: #ffffff;
}

.method-world-model-card figcaption {
  margin: 0;
  padding: 8px 10px 10px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 11px;
  font-weight: 620;
  line-height: 1.2;
  text-align: center;
}

.corner-demo-panel {
  width: 100%;
  border: 1px solid #d9ded6;
  border-radius: 8px;
  padding: 14px;
  background: #ffffff;
  box-shadow: 0 14px 34px rgba(7, 29, 56, 0.08);
}

.corner-demo-label {
  display: block;
  margin: 0 2px 8px;
  color: var(--green);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 11px;
  font-weight: 650;
  letter-spacing: 0;
  text-transform: uppercase;
}

.corner-demo-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.corner-demo-card {
  margin: 0;
}

.corner-demo-media {
  aspect-ratio: 420 / 408;
  border: 1px solid #e2e6e0;
  border-radius: 6px;
  overflow: hidden;
  display: grid;
  place-items: center;
  background: #fbfcfb;
}

.corner-demo-media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.corner-demo-card figcaption {
  margin-top: 5px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 620;
  line-height: 1.2;
  text-align: center;
}

.method-demo-section {
  border-top: 1px solid var(--line);
  width: min(960px, 100%);
  padding-top: clamp(36px, 5vw, 58px);
  padding-bottom: clamp(36px, 5vw, 58px);
}

.method-demo-section .split-heading {
  margin-bottom: 22px;
  grid-template-columns: minmax(260px, 0.72fr) minmax(300px, 0.78fr);
  gap: clamp(22px, 4vw, 48px);
  align-items: start;
}

.method-demo-section h2 {
  max-width: 520px;
  font-size: clamp(24px, 2.5vw, 34px);
  line-height: 1.12;
}

.method-demo-section .split-heading > p {
  max-width: 430px;
  font-size: 14.5px;
  line-height: 1.55;
}

.method-demo-grid {
  width: min(720px, 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.method-demo-card {
  margin: 0;
  border: 1px solid #dce3dc;
  border-radius: 8px;
  overflow: hidden;
  background: #ffffff;
}

.method-demo-media {
  aspect-ratio: 16 / 10;
  border-bottom: 1px solid #edf0ec;
  display: grid;
  place-items: center;
  background: #fbfcfb;
}

.method-demo-media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.method-demo-card figcaption {
  min-height: 82px;
  padding: 12px 14px 14px;
  display: grid;
  gap: 4px;
  align-content: start;
}

.method-demo-card strong {
  color: var(--ink);
  font-size: 14px;
  font-weight: 650;
  line-height: 1.25;
}

.method-demo-card span {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

.evidence-section {
  display: grid;
  grid-template-columns: minmax(320px, 0.43fr) minmax(0, 1fr);
  gap: clamp(28px, 5vw, 70px);
  border-top: 1px solid var(--line);
  align-items: start;
}

.evidence-section.wide {
  grid-template-columns: minmax(320px, 0.36fr) minmax(0, 1fr);
}

.evidence-copy > p:not(.eyebrow),
.condition {
  color: var(--muted);
  line-height: 1.65;
}

.condition {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  color: #354252;
}

.notes {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.notes span {
  border: 1px solid #d8ded8;
  border-radius: 999px;
  padding: 7px 11px;
  background: #ffffff;
  color: #40505c;
  font-size: 12px;
  font-weight: 650;
}

.evidence-board {
  min-width: 0;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 18px;
}

.metric-tile {
  min-height: 112px;
  border: 1px solid #dce3dc;
  border-radius: 8px;
  padding: 18px;
  background: #ffffff;
}

.metric-tile strong {
  display: block;
  margin-bottom: 10px;
  color: var(--ink);
  font-size: clamp(22px, 2vw, 30px);
  font-weight: 650;
  line-height: 1.05;
}

.evidence-figures {
  display: grid;
  gap: 18px;
}

.evidence-section.wide .evidence-figures {
  grid-template-columns: 1fr;
}

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

.workflow-panel {
  border: 1px solid #d6deda;
  border-radius: 8px;
  padding: clamp(24px, 4vw, 46px);
  background: #ffffff;
}

.workflow-steps {
  margin-top: 28px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.workflow-steps article {
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

.workflow-steps span {
  display: block;
  margin-bottom: 16px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 700;
}

.detail-system {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(28px, 5vw, 70px);
  border-top: 1px solid var(--line);
}

.detail-system ul {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.detail-system li {
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

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

.product-nav-grid {
  margin-top: 22px;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 10px;
}

.product-nav-grid a {
  min-height: 108px;
  border: 1px solid #d9dfdd;
  border-radius: 8px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: #ffffff;
}

.product-nav-grid a.active {
  border-color: var(--green);
  box-shadow: inset 0 3px 0 var(--green);
}

.product-nav-grid span {
  color: var(--green);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.product-nav-grid strong {
  color: var(--ink);
  font-size: 15px;
  line-height: 1.25;
}

.simple-hero {
  max-width: 980px;
}

.simple-grid {
  padding-top: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.simple-grid article {
  border: 1px solid #d9dfdd;
  border-radius: 8px;
  padding: 24px;
  background: #ffffff;
}

.simple-grid h2 {
  margin-bottom: 14px;
  font-size: 24px;
}

@media (max-width: 980px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
    padding: 18px 0;
  }

  .nav-links {
    flex-wrap: wrap;
  }

  .hero-layout,
  .product-section,
  .architecture-layout,
  .detail-hero,
  .split-heading,
  .evidence-section,
  .evidence-section.wide,
  .detail-system {
    grid-template-columns: 1fr;
  }

  .signal-strip,
  .proof-grid,
  .metrics-grid,
  .workflow-steps,
  .product-nav-grid,
  .mind-expansion,
  .simple-grid,
  .setup-figures {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .product-card,
  .product-card:nth-child(1),
  .product-card:nth-child(2),
  .product-card:nth-child(n + 3) {
    grid-column: span 3;
  }

  .architecture-visual {
    min-height: 620px;
  }

  .input-column,
  .output-column,
  .architecture-core {
    position: static;
    width: auto;
    margin: 22px;
    transform: none;
  }

}

@media (max-width: 640px) {
  .topbar,
  .hero-layout,
  .signal-strip,
  .product-section,
  .platform-section > *,
  .products-section > *,
  .validation-section > *,
  .cta-section,
  .detail-hero,
  .setup-section,
  .evidence-section,
  .workflow-section,
  .detail-system,
  .product-nav-section,
  .simple-hero,
  .simple-grid {
    width: min(100% - 28px, 1240px);
  }

  h1 { font-size: 40px; }

  .signal-strip,
  .proof-grid,
  .metrics-grid,
  .workflow-steps,
  .product-nav-grid,
  .mind-expansion,
  .simple-grid,
  .setup-figures,
  .method-demo-grid,
  .paper-grid,
  .product-mosaic {
    grid-template-columns: 1fr;
  }

  .paper-card {
    grid-template-columns: auto 1fr;
  }

  .paper-arrow {
    display: none;
  }

  .method-demo-section .split-heading {
    grid-template-columns: 1fr;
  }

  .method-view-grid {
    grid-template-columns: 1fr;
  }

  .method-world-model-card img {
    height: auto;
  }

  .corner-demo-panel {
    justify-self: start;
  }

  .product-card,
  .product-card:nth-child(1),
  .product-card:nth-child(2),
  .product-card:nth-child(n + 3) {
    grid-column: auto;
  }
}