:root {
  color-scheme: dark;
  --color-black: #050505;
  --color-graphite: #0b0b0b;
  --color-surface: #111111;
  --color-surface-strong: #151515;
  --color-line: rgba(255, 255, 255, 0.12);
  --color-line-soft: rgba(255, 255, 255, 0.07);
  --line-default: rgba(255, 255, 255, 0.12);
  --line-accent: rgba(255, 192, 0, 0.35);
  --line-hover: rgba(255, 192, 0, 0.55);
  --color-text: #f2f2f2;
  --color-muted: #b8b8b8;
  --color-subtle: #a8a8a8;
  --color-dim: #6e6e6e;
  --color-accent: #ffc000;
  --container: 1520px;
  --side-pad: clamp(40px, 5vw, 72px);
  --nav-height: 76px;
  --section-pad: clamp(120px, 12vw, 180px);
  --module-gap: clamp(64px, 7vw, 104px);
  --font-main: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-height) + 24px);
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 72% 8%, rgba(255, 192, 0, 0.08), transparent 28rem),
    radial-gradient(circle at 18% 26%, rgba(255, 255, 255, 0.04), transparent 34rem),
    linear-gradient(180deg, #050505 0%, #080808 40%, #050505 100%);
  color: var(--color-text);
  font-family: var(--font-main);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  content: "";
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.95), rgba(0, 0, 0, 0.34));
}

body::after {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  opacity: 0.35;
  background-image:
    linear-gradient(115deg, rgba(255, 255, 255, 0.025) 0, rgba(255, 255, 255, 0.025) 1px, transparent 1px, transparent 8px);
}

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

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

p {
  color: var(--color-muted);
  font-size: clamp(16px, 1.08vw, 19px);
  line-height: 1.68;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 100;
  padding: 10px 14px;
  background: var(--color-accent);
  color: #050505;
  transform: translateY(-140%);
}

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

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

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 50;
  width: 100%;
  border-bottom: 1px solid transparent;
  transition: background 220ms ease, border-color 220ms ease;
}

.site-header.is-scrolled {
  border-color: var(--color-line-soft);
  background: rgba(5, 5, 5, 0.84);
  backdrop-filter: blur(18px);
}

.nav-shell {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  width: min(100%, var(--container));
  height: var(--nav-height);
  margin: 0 auto;
  padding: 0 var(--side-pad);
  gap: 36px;
}

.brand-mark,
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.brand-mark span,
.footer-brand span {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

.brand-mark .logo-crop,
.footer-brand .logo-crop {
  position: relative;
  display: block;
  overflow: hidden;
  clip: auto;
  white-space: normal;
  flex: 0 0 auto;
  width: 119px;
  height: 22px;
}

.footer-brand .logo-crop {
  width: 162px;
  height: 30px;
}

.brand-mark img,
.footer-brand img {
  position: absolute;
  top: -15px;
  left: -19px;
  width: 156px;
  height: auto;
  max-width: none;
  object-fit: unset;
}

.footer-brand img {
  top: -20px;
  left: -26px;
  width: 212px;
}

.nav-links {
  display: flex;
  justify-content: center;
  gap: clamp(18px, 2vw, 32px);
}

.nav-links a,
.nav-cta,
.footer-links a,
.footer-links .footer-link-primary {
  position: relative;
  color: var(--color-subtle);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: color 180ms ease;
}

.nav-links a::after {
  position: absolute;
  right: 0;
  bottom: -10px;
  left: 0;
  height: 1px;
  background: var(--color-accent);
  content: "";
  opacity: 0;
  transform: scaleX(0.35);
  transition: opacity 180ms ease, transform 180ms ease;
}

.nav-links a:hover,
.nav-links a.is-active,
.nav-cta:hover,
.footer-links a:hover {
  color: var(--color-text);
}

.nav-links a.is-active::after {
  opacity: 1;
  transform: scaleX(1);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 0 16px;
  border: 1px solid rgba(255, 192, 0, 0.54);
  color: var(--color-accent);
}

.nav-toggle {
  display: none;
}

.section,
.hero {
  position: relative;
  overflow: clip;
}

.section-shell,
.hero-inner,
.footer-shell {
  width: min(100%, var(--container));
  margin: 0 auto;
  padding-right: var(--side-pad);
  padding-left: var(--side-pad);
}

.section {
  padding: var(--section-pad) 0;
  border-top: 1px solid var(--color-line-soft);
}

.section-grid::before,
.section::before {
  display: none;
}

.hero {
  min-height: 96vh;
  padding-top: var(--nav-height);
}

.hero-system-field {
  position: absolute;
  top: 18%;
  right: max(28px, calc((100vw - var(--container)) / 2 + var(--side-pad)));
  width: min(34vw, 520px);
  height: min(42vh, 420px);
  pointer-events: none;
  opacity: 0.48;
}

.system-frame {
  position: absolute;
  inset: 0;
  border: 1px solid rgba(255, 255, 255, 0.055);
  background:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(135deg, transparent, #000 18%, #000 72%, transparent);
}

.system-frame::before,
.system-frame::after {
  position: absolute;
  width: 58px;
  height: 58px;
  border-color: rgba(255, 192, 0, 0.18);
  content: "";
}

.system-frame::before {
  top: -1px;
  left: -1px;
  border-top: 1px solid;
  border-left: 1px solid;
}

.system-frame::after {
  right: -1px;
  bottom: -1px;
  border-right: 1px solid;
  border-bottom: 1px solid;
}

.system-node,
.system-line,
.system-marker {
  position: absolute;
}

.system-node {
  width: 8px;
  height: 8px;
  border: 1px solid rgba(255, 192, 0, 0.42);
  border-radius: 999px;
  background: #050505;
}

.node-a {
  top: 27%;
  left: 24%;
}

.node-b {
  top: 52%;
  left: 68%;
  border-color: rgba(255, 255, 255, 0.24);
}

.node-c {
  top: 72%;
  left: 38%;
  border-color: rgba(255, 255, 255, 0.2);
}

.system-line {
  height: 1px;
  background: rgba(255, 255, 255, 0.1);
  transform-origin: left center;
}

.line-a {
  top: 31%;
  left: 26%;
  width: 44%;
  transform: rotate(22deg);
}

.line-b {
  top: 55%;
  left: 40%;
  width: 31%;
  transform: rotate(139deg);
}

.system-marker {
  padding: 5px 7px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.38);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.marker-a {
  top: 12%;
  right: 8%;
}

.marker-b {
  right: 18%;
  bottom: 12%;
  color: rgba(255, 192, 0, 0.42);
}

.hero-inner {
  display: grid;
  align-content: end;
  min-height: calc(96vh - var(--nav-height));
  padding-top: 86px;
  padding-bottom: clamp(44px, 6vw, 86px);
}

.section-kicker,
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--color-subtle);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.section-label span:first-child,
.section-kicker::before,
.article-label {
  color: var(--color-accent);
}

.section-kicker::before,
.section-label::before {
  width: 28px;
  height: 1px;
  background: rgba(255, 192, 0, 0.74);
  content: "";
}

.hero-copy {
  display: grid;
  gap: 28px;
  margin-top: clamp(58px, 9vh, 110px);
}

.hero-title {
  max-width: 13ch;
  font-size: clamp(72px, 9vw, 148px);
  line-height: 0.91;
  font-weight: 800;
  letter-spacing: -0.055em;
}

.hero-subtitle {
  max-width: 760px;
  color: #c6c6c6;
  font-size: clamp(19px, 1.55vw, 28px);
  line-height: 1.42;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(38px, 6vh, 72px);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  min-height: 50px;
  padding: 0 22px;
  border: 1px solid var(--color-line);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: transform 180ms ease, border-color 180ms ease, color 180ms ease, background 180ms ease;
}

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

.button-primary {
  border-color: var(--color-accent);
  background: var(--color-accent);
  color: #050505;
}

.hero-actions .button-primary {
  min-width: 190px;
}

.button-secondary {
  background: rgba(5, 5, 5, 0.28);
  color: var(--color-text);
}

.button-secondary:hover {
  border-color: rgba(255, 192, 0, 0.6);
  color: var(--color-accent);
}

.hero-boundary {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin-top: clamp(46px, 8vh, 88px);
  padding-top: 18px;
  border-top: 1px solid var(--color-line);
  color: var(--color-dim);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-boundary strong {
  color: var(--color-text);
}

.two-column,
.diagnostic-layout,
.boundary-layout {
  display: grid;
  grid-template-columns: minmax(220px, 0.58fr) minmax(0, 1.42fr);
  gap: clamp(60px, 8vw, 140px);
}

.section-title {
  max-width: 980px;
  font-size: clamp(42px, 5vw, 92px);
  line-height: 0.98;
  font-weight: 720;
  letter-spacing: -0.05em;
}

.principles-section .section-title {
  max-width: none;
  font-size: clamp(42px, 4.35vw, 82px);
  white-space: nowrap;
}

.diagnostic-intro > .section-label + .section-title,
.section-heading-row .section-label + .section-title,
.boundary-copy > .section-label + .section-title {
  margin-top: clamp(30px, 3.2vw, 52px);
}

.body-stack {
  display: grid;
  max-width: 760px;
  gap: 24px;
  margin-top: 34px;
}

.compact-copy p {
  max-width: 680px;
}

.system-equation {
  display: grid;
  grid-template-columns: minmax(118px, auto) minmax(32px, 1fr) minmax(92px, auto) minmax(32px, 1fr) minmax(110px, auto) minmax(32px, 1fr) minmax(160px, auto);
  align-items: center;
  max-width: 920px;
  margin-top: 50px;
  padding: 24px 0;
  border-top: 1px solid var(--line-default);
  border-bottom: 1px solid var(--color-line-soft);
}

.equation-node {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding-left: 18px;
  color: var(--color-text);
  font-size: clamp(13px, 0.9vw, 16px);
  font-weight: 740;
  line-height: 1.15;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.equation-node::before {
  position: absolute;
  top: 50%;
  left: 0;
  width: 8px;
  height: 8px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  background: #050505;
  content: "";
  transform: translateY(-50%);
}

.equation-node.is-source {
  color: var(--color-subtle);
}

.equation-node.is-target::before {
  border-color: rgba(255, 192, 0, 0.62);
}

.system-equation i {
  display: block;
  height: 1px;
  margin: 0 16px;
  background: linear-gradient(90deg, rgba(255, 192, 0, 0.35), rgba(255, 255, 255, 0.12));
}

.section-lede {
  max-width: 720px;
  margin-top: 26px;
  color: var(--color-subtle);
}

.diagnostic-map {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line-default);
  border-left: 1px solid var(--color-line-soft);
}

.diagnostic-cell {
  position: relative;
  min-height: 238px;
  padding: 30px clamp(24px, 3vw, 42px) 34px;
  border-right: 1px solid var(--color-line-soft);
  border-bottom: 1px solid var(--color-line-soft);
  background:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 34px 34px;
  transition: border-color 180ms ease, background-color 180ms ease;
}

.diagnostic-cell:hover {
  border-color: var(--line-hover);
  background-color: rgba(255, 255, 255, 0.015);
}

.risk-marker {
  position: absolute;
  right: 24px;
  top: 28px;
  width: 28px;
  height: 28px;
  border: 1px solid rgba(255, 255, 255, 0.18);
}

.risk-marker::before,
.risk-marker::after {
  position: absolute;
  content: "";
}

.risk-marker::before {
  top: 13px;
  left: 5px;
  width: 18px;
  height: 1px;
  background: rgba(255, 255, 255, 0.22);
}

.risk-marker::after {
  top: 5px;
  left: 13px;
  width: 1px;
  height: 18px;
  background: rgba(255, 192, 0, 0.26);
}

.row-number,
.pillar-number,
.system-row span,
.product-stage-index,
.principle-index {
  color: var(--color-accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.diagnostic-cell h3,
.pillar h3,
.system-row h3,
.article-row h3,
.path-fit-path,
.principle-card h3 {
  color: var(--color-text);
  font-size: clamp(22px, 2vw, 32px);
  line-height: 1.08;
  font-weight: 620;
  letter-spacing: -0.03em;
}

.diagnostic-cell p,
.pillar p,
.product-module p,
.system-row p,
.article-row p,
.principle-card p {
  max-width: 620px;
  margin-top: 12px;
  color: var(--color-subtle);
}

.diagnostic-cell h3 {
  max-width: 12ch;
  margin-top: 58px;
  font-size: clamp(20px, 1.6vw, 28px);
}

.section-heading-block,
.system-header {
  display: grid;
  gap: 26px;
}

.method-system {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  margin-top: var(--module-gap);
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
}

.method-center {
  position: absolute;
  top: -31px;
  left: 50%;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 118px;
  min-height: 34px;
  border: 1px solid rgba(255, 192, 0, 0.36);
  background: #050505;
  color: var(--color-accent);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  transform: translateX(-50%);
}

.method-connector {
  position: absolute;
  top: 0;
  width: 1px;
  height: 62px;
  background: linear-gradient(180deg, rgba(255, 192, 0, 0.35), rgba(255, 255, 255, 0.08));
  content: "";
}

.connector-a {
  left: 16.66%;
}

.connector-b {
  left: 50%;
}

.connector-c {
  left: 83.33%;
}

.pillar {
  position: relative;
  min-height: 360px;
  padding: 34px clamp(24px, 3vw, 44px) 42px 0;
  border-right: 1px solid var(--color-line-soft);
}

.pillar + .pillar {
  padding-left: clamp(24px, 3vw, 44px);
}

.pillar:last-child {
  border-right: 0;
}

.pillar h3 {
  margin-top: 86px;
}

.glyph {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 44px;
  color: var(--color-subtle);
}

.glyph::before,
.glyph::after {
  position: absolute;
  content: "";
}

.glyph-audit::before {
  inset: 8px;
  border: 1px solid currentColor;
}

.glyph-audit::after {
  inset: 0;
  border: 1px solid transparent;
  background:
    linear-gradient(currentColor, currentColor) 0 0 / 12px 1px no-repeat,
    linear-gradient(currentColor, currentColor) 0 0 / 1px 12px no-repeat,
    linear-gradient(currentColor, currentColor) 100% 0 / 12px 1px no-repeat,
    linear-gradient(currentColor, currentColor) 100% 0 / 1px 12px no-repeat,
    linear-gradient(currentColor, currentColor) 0 100% / 12px 1px no-repeat,
    linear-gradient(currentColor, currentColor) 0 100% / 1px 12px no-repeat,
    linear-gradient(currentColor, currentColor) 100% 100% / 12px 1px no-repeat,
    linear-gradient(currentColor, currentColor) 100% 100% / 1px 12px no-repeat;
}

.glyph-sprint::before {
  top: 10px;
  left: 6px;
  width: 32px;
  height: 22px;
  background:
    linear-gradient(currentColor, currentColor) 0 0 / 32px 1px no-repeat,
    linear-gradient(currentColor, currentColor) 0 10px / 24px 1px no-repeat,
    linear-gradient(currentColor, currentColor) 0 20px / 32px 1px no-repeat;
}

.glyph-sprint::after {
  top: 6px;
  right: 7px;
  width: 6px;
  height: 30px;
  border: 1px solid currentColor;
}

.glyph-review::before {
  inset: 8px;
  border: 1px dashed currentColor;
  border-radius: 999px;
}

.glyph-review::after {
  top: 10px;
  right: 7px;
  width: 8px;
  height: 8px;
  border-top: 1px solid currentColor;
  border-right: 1px solid currentColor;
  transform: rotate(38deg);
}

.method-mark {
  position: relative;
  display: inline-block;
  width: 72px;
  height: 48px;
  color: rgba(255, 255, 255, 0.32);
  background:
    linear-gradient(rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.1)) 0 0 / 72px 1px no-repeat,
    linear-gradient(rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.08)) 0 100% / 72px 1px no-repeat;
}

.method-mark::before,
.method-mark::after {
  position: absolute;
  content: "";
}

.method-mark-clarity::before {
  top: 23px;
  left: 8px;
  width: 56px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.18), rgba(255, 192, 0, 0.5), rgba(255, 255, 255, 0.18), transparent);
}

.method-mark-clarity::after {
  top: 17px;
  left: 30px;
  width: 12px;
  height: 12px;
  border: 1px solid rgba(255, 192, 0, 0.64);
  border-radius: 999px;
  background: #050505;
  box-shadow:
    0 0 0 7px rgba(255, 192, 0, 0.035),
    0 0 0 18px rgba(255, 255, 255, 0.018);
}

.method-mark-credibility::before {
  top: 10px;
  left: 16px;
  width: 40px;
  height: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.3);
  border-bottom: 1px solid rgba(255, 255, 255, 0.3);
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.16), rgba(255, 255, 255, 0.16)) 0 50% / 40px 1px no-repeat,
    linear-gradient(rgba(255, 192, 0, 0.48), rgba(255, 192, 0, 0.48)) 50% 50% / 8px 8px no-repeat;
}

.method-mark-credibility::after {
  top: 6px;
  left: 12px;
  width: 48px;
  height: 36px;
  border-right: 1px solid rgba(255, 255, 255, 0.12);
  border-left: 1px solid rgba(255, 255, 255, 0.12);
}

.method-mark-operating::before {
  top: 9px;
  left: 13px;
  width: 46px;
  height: 30px;
  background:
    linear-gradient(rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0.14)) 0 0 / 46px 1px no-repeat,
    linear-gradient(rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0.14)) 0 14px / 46px 1px no-repeat,
    linear-gradient(rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0.14)) 0 29px / 46px 1px no-repeat,
    linear-gradient(90deg, currentColor, currentColor) 0 0 / 1px 30px no-repeat,
    linear-gradient(90deg, currentColor, currentColor) 22px 0 / 1px 30px no-repeat,
    linear-gradient(90deg, currentColor, currentColor) 45px 0 / 1px 30px no-repeat;
}

.method-mark-operating::after {
  top: 11px;
  left: 15px;
  width: 6px;
  height: 6px;
  border: 1px solid rgba(255, 192, 0, 0.7);
  border-radius: 999px;
  background: #050505;
  box-shadow:
    22px 14px 0 -1px #050505,
    22px 14px 0 0 rgba(255, 255, 255, 0.34),
    44px 0 0 -1px #050505,
    44px 0 0 0 rgba(255, 255, 255, 0.34);
}

.product-module.is-open .glyph,
.path-fit-row:first-child .glyph {
  color: var(--color-accent);
}

.section-heading-row {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
  align-items: end;
  gap: clamp(44px, 6vw, 100px);
}

.product-path-rail {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  margin-top: var(--module-gap);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  border-bottom: 1px solid var(--color-line-soft);
  background:
    linear-gradient(rgba(255, 255, 255, 0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.018) 1px, transparent 1px);
  background-size: 44px 44px;
}

.product-path-rail::before {
  position: absolute;
  top: -1px;
  left: 0;
  width: 66%;
  height: 1px;
  background: linear-gradient(90deg, rgba(255, 192, 0, 0.35), rgba(255, 192, 0, 0.12));
  content: "";
}

.product-rail-labels {
  position: absolute;
  top: -42px;
  right: 0;
  left: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  color: var(--color-dim);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.product-rail-labels span {
  position: relative;
  padding-left: clamp(26px, 3vw, 48px);
}

.product-rail-labels span:first-child {
  padding-left: 0;
}

.product-rail-labels span::before {
  position: absolute;
  top: 50%;
  left: clamp(26px, 3vw, 48px);
  width: 6px;
  height: 6px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 999px;
  content: "";
  transform: translateY(-50%) translateX(-18px);
}

.product-rail-labels span:first-child::before {
  left: 0;
  border-color: rgba(255, 192, 0, 0.48);
  transform: translateY(-50%);
}

.product-stage-marker {
  display: inline-flex;
  margin-top: 56px;
  color: var(--color-accent);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.product-stage-name {
  display: block;
  margin-top: 16px;
  color: var(--color-dim);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.product-module {
  position: relative;
  min-height: 430px;
  padding: 34px clamp(26px, 3vw, 48px) 36px 0;
  border-right: 1px solid var(--color-line-soft);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.012), rgba(255, 255, 255, 0));
}

.product-module + .product-module {
  padding-left: clamp(26px, 3vw, 48px);
}

.product-module:last-child {
  border-right: 0;
}

.product-module::before {
  position: absolute;
  top: -6px;
  left: 0;
  width: 11px;
  height: 11px;
  border: 1px solid rgba(255, 192, 0, 0.68);
  border-radius: 999px;
  background: #050505;
  content: "";
}

.product-module + .product-module::before {
  left: clamp(26px, 3vw, 48px);
}

.product-module.is-application::before {
  border-color: rgba(255, 192, 0, 0.38);
}

.product-module.is-testing {
  opacity: 0.58;
  border-right-style: dashed;
  background: transparent;
}

.product-module.is-testing::before {
  border-color: rgba(255, 255, 255, 0.24);
  background: #111111;
}

.product-module-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.product-glyph {
  flex: 0 0 auto;
}

.product-status {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 9px;
  border: 1px solid rgba(255, 192, 0, 0.42);
  color: var(--color-accent);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  white-space: nowrap;
}

.product-module.is-testing .product-status {
  border-color: rgba(255, 255, 255, 0.18);
  color: #8a8a8a;
}

.product-module .product-stage-index {
  display: block;
  margin-top: 56px;
}

.product-module .product-stage-marker {
  margin-top: 16px;
}

.product-module.is-testing .product-stage-marker {
  color: #8a8a8a;
}

.product-module h3 {
  max-width: 13ch;
  margin-top: 54px;
  color: var(--color-text);
  font-size: clamp(23px, 1.85vw, 30px);
  line-height: 1.02;
  font-weight: 640;
  letter-spacing: -0.03em;
}

.product-name span {
  display: block;
}

.product-name span:first-child {
  color: #ffffff;
}

.product-name span:last-child {
  color: #d9d9d9;
}

.product-role {
  min-height: 64px;
}

.product-availability {
  margin-top: 16px;
  color: var(--color-dim);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.12em;
  line-height: 1.35;
  text-transform: uppercase;
}

.product-module-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  margin-top: 32px;
  padding: 0 16px;
  border: 1px solid rgba(255, 192, 0, 0.62);
  color: var(--color-accent);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: transform 180ms ease, border-color 180ms ease, color 180ms ease;
}

.product-module-action:hover {
  border-color: var(--color-accent);
  color: var(--color-text);
  transform: translateY(-2px);
}

.product-module-action.is-secondary {
  border-color: rgba(255, 255, 255, 0.2);
  color: var(--color-muted);
}

.product-module-action.is-secondary:hover {
  border-color: rgba(255, 192, 0, 0.42);
  color: var(--color-accent);
}

.product-module-action.is-disabled {
  pointer-events: none;
  border-style: dashed;
  border-color: rgba(255, 255, 255, 0.16);
  color: #7a7a7a;
  transform: none;
}

.path-fit-list {
  margin-top: var(--module-gap);
  border-top: 1px solid var(--color-line);
}

.path-fit-head {
  display: grid;
  grid-template-columns: 70px minmax(220px, 0.85fr) minmax(220px, 0.72fr) minmax(130px, 0.26fr);
  gap: clamp(22px, 3vw, 54px);
  padding: 0 0 16px;
  border-bottom: 1px solid var(--color-line-soft);
  color: var(--color-dim);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.path-fit-head span:first-child {
  grid-column: 2;
}

.path-fit .section-lede {
  color: var(--color-dim);
  font-size: clamp(14px, 0.95vw, 16px);
}

.path-fit-row {
  position: relative;
  display: grid;
  grid-template-columns: 70px minmax(220px, 0.85fr) minmax(220px, 0.72fr) minmax(130px, 0.26fr);
  gap: clamp(22px, 3vw, 54px);
  align-items: center;
  padding: 24px 0;
  border-bottom: 1px solid var(--color-line-soft);
  transition: border-color 180ms ease, background-color 180ms ease;
}

.path-fit-row:first-of-type {
  border-bottom-color: rgba(255, 192, 0, 0.25);
  background: linear-gradient(90deg, rgba(255, 192, 0, 0.035), transparent 42%);
}

.path-fit-row:hover {
  border-color: var(--line-hover);
}

.path-fit-row.is-muted {
  opacity: 0.64;
}

.path-fit-condition {
  margin-top: 0;
  color: var(--color-muted);
  font-size: clamp(15px, 1.1vw, 18px);
  line-height: 1.45;
}

.path-fit-path {
  margin: 0;
  color: var(--color-text);
  font-size: clamp(19px, 1.5vw, 25px);
  line-height: 1.08;
  font-weight: 620;
  letter-spacing: -0.03em;
}

.path-fit-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  min-height: 24px;
  padding: 0 9px;
  border: 1px solid rgba(255, 192, 0, 0.42);
  color: var(--color-accent);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.path-fit-badge.is-muted {
  border-color: rgba(255, 255, 255, 0.18);
  color: #8a8a8a;
}

.principle-map {
  position: relative;
  margin-top: var(--module-gap);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  min-height: clamp(300px, 25vw, 390px);
  border-top: 1px solid var(--line-default);
  border-bottom: 1px solid var(--line-default);
}

.principle-map::before,
.principle-map::after {
  position: absolute;
  z-index: 0;
  content: "";
  pointer-events: none;
}

.principle-map::before {
  top: 0;
  bottom: 0;
  left: 50%;
  width: 1px;
  background: linear-gradient(180deg, transparent, var(--line-default) 14%, rgba(255, 192, 0, 0.22) 50%, var(--line-default) 86%, transparent);
}

.principle-map::after {
  top: 50%;
  right: 0;
  left: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line-default) 14%, rgba(255, 192, 0, 0.18) 50%, var(--line-default) 86%, transparent);
}

.principle-center {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 68px;
  height: 68px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  background: rgba(5, 5, 5, 0.92);
  transform: translate(-50%, -50%);
}

.principle-center::before,
.principle-center::after {
  position: absolute;
  border-radius: 999px;
  content: "";
}

.principle-center::before {
  inset: 9px;
  border: 1px solid rgba(255, 192, 0, 0.18);
}

.principle-center::after {
  width: 5px;
  height: 5px;
  background: var(--color-accent);
}

.principle-center span {
  position: absolute;
  bottom: -25px;
  color: var(--color-dim);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  white-space: nowrap;
}

.principle-card {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: clamp(150px, 13vw, 190px);
  padding: clamp(22px, 2.6vw, 34px);
  overflow: hidden;
}

.principle-card::before {
  position: absolute;
  width: 24px;
  height: 24px;
  border-color: rgba(255, 255, 255, 0.12);
  content: "";
  pointer-events: none;
}

.principle-card.is-top-left::before {
  top: 20px;
  left: 20px;
  border-top: 1px solid;
  border-left: 1px solid;
}

.principle-card.is-top-right::before {
  top: 20px;
  right: 20px;
  border-top: 1px solid;
  border-right: 1px solid;
}

.principle-card.is-bottom-left::before {
  bottom: 20px;
  left: 20px;
  border-bottom: 1px solid;
  border-left: 1px solid;
}

.principle-card.is-bottom-right::before {
  right: 20px;
  bottom: 20px;
  border-right: 1px solid;
  border-bottom: 1px solid;
}

.principle-card h3 {
  max-width: 15ch;
  margin-top: clamp(30px, 3.4vw, 48px);
  font-size: clamp(20px, 1.45vw, 26px);
}

.principle-card h3 span {
  display: block;
}

.principle-card p {
  max-width: 36ch;
  margin-top: 14px;
  font-size: clamp(15px, 1vw, 17px);
  line-height: 1.55;
  text-wrap: balance;
}

.principle-card.is-top-right,
.principle-card.is-bottom-right {
  align-items: flex-end;
  text-align: left;
}

.principle-card.is-bottom-left,
.principle-card.is-bottom-right {
  justify-content: flex-end;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 38px;
  color: var(--color-accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.text-link span {
  transition: transform 180ms ease;
}

.text-link:hover span {
  transform: translateX(4px);
}

.boundary-section {
  background: linear-gradient(180deg, rgba(17, 17, 17, 0.34), rgba(5, 5, 5, 0));
}

.boundary-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 clamp(36px, 5vw, 80px);
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-default);
  list-style: none;
}

.boundary-list li {
  position: relative;
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 70px;
  padding: 18px 0;
  border-bottom: 1px solid var(--color-line-soft);
  color: var(--color-muted);
  font-size: clamp(16px, 1.25vw, 21px);
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: -0.01em;
}

.boundary-list li span {
  position: relative;
  display: inline-block;
  width: 12px;
  height: 12px;
  flex: 0 0 auto;
}

.boundary-list li span::before {
  position: absolute;
  top: 5px;
  left: 0;
  width: 14px;
  height: 1px;
  background: rgba(255, 255, 255, 0.28);
  content: "";
  transform: rotate(-42deg);
}

.boundary-list li span::after {
  position: absolute;
  top: 0;
  left: 5px;
  width: 1px;
  height: 12px;
  background: rgba(255, 255, 255, 0.12);
  content: "";
}

.system-header .section-lede {
  margin-top: 0;
}

.proof-architecture {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(24px, 4vw, 64px);
  margin-top: var(--module-gap);
  padding-top: 42px;
  border-top: 1px solid var(--line-default);
}

.proof-architecture::before {
  position: absolute;
  top: 41px;
  right: 0;
  left: 0;
  height: 1px;
  background: linear-gradient(90deg, rgba(255, 192, 0, 0.28), rgba(255, 255, 255, 0.12));
  content: "";
}

.proof-block {
  position: relative;
  display: grid;
  align-content: start;
  gap: 22px;
  min-height: 260px;
  padding: 30px 0 0;
}

.proof-index {
  color: var(--color-accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.proof-marker {
  position: relative;
  display: inline-block;
  width: 72px;
  height: 48px;
  color: rgba(255, 255, 255, 0.26);
}

.proof-marker::before,
.proof-marker::after {
  position: absolute;
  content: "";
}

.proof-marker-diagnosis::before {
  top: 6px;
  left: 12px;
  width: 48px;
  height: 36px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  clip-path: polygon(0 0, 82% 0, 100% 24%, 100% 100%, 18% 100%, 0 76%);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.055) 0 1px, transparent 1px) 0 0 / 8px 8px,
    linear-gradient(rgba(255, 192, 0, 0.46), rgba(255, 192, 0, 0.46)) 50% 50% / 14px 1px no-repeat,
    linear-gradient(90deg, rgba(255, 192, 0, 0.46), rgba(255, 192, 0, 0.46)) 50% 50% / 1px 14px no-repeat;
}

.proof-marker-diagnosis::after {
  top: 15px;
  left: 21px;
  width: 30px;
  height: 18px;
  background:
    linear-gradient(currentColor, currentColor) 0 0 / 30px 1px no-repeat,
    linear-gradient(currentColor, currentColor) 0 100% / 30px 1px no-repeat;
}

.proof-marker-logic::before {
  top: 7px;
  left: 14px;
  width: 44px;
  height: 34px;
  border-top: 1px solid rgba(255, 255, 255, 0.24);
  border-bottom: 1px solid rgba(255, 255, 255, 0.24);
  background:
    linear-gradient(90deg, rgba(255, 192, 0, 0.48), rgba(255, 192, 0, 0.48)) 0 50% / 44px 1px no-repeat,
    linear-gradient(currentColor, currentColor) 10px 0 / 1px 34px no-repeat,
    linear-gradient(currentColor, currentColor) 33px 0 / 1px 34px no-repeat;
}

.proof-marker-logic::after {
  top: 14px;
  left: 28px;
  width: 16px;
  height: 20px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  background:
    linear-gradient(rgba(255, 192, 0, 0.52), rgba(255, 192, 0, 0.52)) 50% 50% / 8px 1px no-repeat,
    #050505;
}

.proof-marker-rhythm::before {
  top: 8px;
  left: 11px;
  width: 50px;
  height: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.22);
  border-bottom: 1px solid rgba(255, 255, 255, 0.22);
  background:
    linear-gradient(90deg, currentColor, currentColor) 0 0 / 1px 32px no-repeat,
    linear-gradient(90deg, currentColor, currentColor) 100% 0 / 1px 32px no-repeat;
}

.proof-marker-rhythm::after {
  top: 15px;
  left: 20px;
  width: 32px;
  height: 18px;
  background:
    linear-gradient(rgba(255, 192, 0, 0.52), rgba(255, 192, 0, 0.52)) 0 50% / 7px 1px no-repeat,
    linear-gradient(rgba(255, 255, 255, 0.3), rgba(255, 255, 255, 0.3)) 12px 50% / 7px 1px no-repeat,
    linear-gradient(rgba(255, 255, 255, 0.3), rgba(255, 255, 255, 0.3)) 25px 50% / 7px 1px no-repeat;
  box-shadow:
    0 -5px 0 -2px rgba(255, 255, 255, 0.2),
    12px 5px 0 -2px rgba(255, 255, 255, 0.2),
    25px -5px 0 -2px rgba(255, 255, 255, 0.2);
}

.proof-block::before {
  position: absolute;
  top: -6px;
  left: 0;
  width: 11px;
  height: 11px;
  border: 1px solid rgba(255, 192, 0, 0.38);
  border-radius: 999px;
  background: #050505;
  content: "";
}

.proof-block:nth-child(2)::before,
.proof-block:nth-child(3)::before {
  border-color: rgba(255, 255, 255, 0.24);
}

.proof-copy {
  display: grid;
  gap: 14px;
  max-width: 360px;
}

.proof-block h3 {
  max-width: 14ch;
  color: var(--color-text);
  font-size: clamp(19px, 1.35vw, 24px);
  line-height: 1.12;
  font-weight: 580;
  letter-spacing: -0.03em;
}

.proof-block p {
  max-width: 31ch;
  margin-top: 0;
  color: var(--color-subtle);
  font-size: clamp(15px, 1vw, 17px);
  line-height: 1.5;
}

.article-list {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  margin-top: var(--module-gap);
  border-top: 1px solid var(--line-default);
  border-bottom: 1px solid var(--line-default);
}

.article-list::before,
.article-list::after {
  position: absolute;
  left: 0;
  width: 58px;
  height: 1px;
  background: var(--line-accent);
  content: "";
  opacity: 0.75;
}

.article-list::before {
  top: -1px;
}

.article-list::after {
  bottom: -1px;
  opacity: 0.28;
}

.article-row {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 22px;
  align-content: start;
  min-height: clamp(230px, 20vw, 310px);
  padding: clamp(28px, 3.2vw, 44px) clamp(24px, 2.8vw, 38px) clamp(28px, 3.2vw, 44px) 0;
  border-right: 1px solid var(--line-default);
  transition: background 180ms ease, border-color 180ms ease, opacity 180ms ease;
}

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

.article-row::before {
  position: absolute;
  top: clamp(28px, 3.2vw, 44px);
  bottom: clamp(28px, 3.2vw, 44px);
  left: 0;
  width: 1px;
  background: linear-gradient(180deg, rgba(255, 192, 0, 0.3), rgba(255, 255, 255, 0.1));
  content: "";
}

.article-label {
  grid-column: 1;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--color-accent);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.article-label::before {
  width: 18px;
  height: 1px;
  background: rgba(255, 192, 0, 0.52);
  content: "";
}

.article-index {
  position: absolute;
  top: clamp(28px, 3.2vw, 44px);
  right: clamp(24px, 2.8vw, 38px);
  color: var(--color-dim);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.article-row h3 {
  grid-column: 1 / -1;
  max-width: 15ch;
  margin-top: clamp(46px, 5vw, 72px);
  padding-left: clamp(18px, 1.8vw, 24px);
  font-size: clamp(22px, 1.8vw, 32px);
  font-weight: 620;
  letter-spacing: -0.035em;
}

.article-row p {
  grid-column: 1;
  max-width: 360px;
  margin-top: clamp(18px, 2vw, 28px);
  padding-left: clamp(18px, 1.8vw, 24px);
  font-size: 15px;
}

.article-arrow {
  position: absolute;
  right: clamp(24px, 2.8vw, 38px);
  bottom: clamp(28px, 3.2vw, 44px);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  color: var(--color-accent);
  text-align: right;
  transition: border-color 180ms ease, transform 180ms ease;
}

.article-row:hover .article-arrow {
  border-color: var(--line-hover);
  transform: translateX(6px);
}

.article-row:hover {
  background: linear-gradient(90deg, rgba(255, 192, 0, 0.035), transparent 42%);
  border-color: var(--line-hover);
  opacity: 1;
}

.insights-action {
  display: flex;
  justify-content: flex-end;
  margin-top: 28px;
}

.insights-action .text-link {
  margin-top: 0;
}

.final-cta {
  position: relative;
  display: grid;
  justify-items: start;
  gap: 30px;
  min-height: 58vh;
  align-content: center;
  padding-top: clamp(52px, 6vw, 82px);
  padding-bottom: clamp(52px, 6vw, 82px);
}

.closing-frame {
  position: absolute;
  pointer-events: none;
}

.frame-right {
  top: 0;
  bottom: 0;
  width: 52px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.frame-right {
  right: var(--side-pad);
  border-right: 1px solid rgba(255, 255, 255, 0.08);
}

.closing-status {
  position: absolute;
  top: 22px;
  right: var(--side-pad);
  color: rgba(255, 192, 0, 0.56);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.final-cta .section-lede {
  margin-top: 0;
}

.final-cta .button {
  width: auto;
  min-width: 150px;
}

.site-footer {
  padding: 66px 0 38px;
  border-top: 1px solid var(--color-line);
  background: #050505;
}

.footer-shell {
  display: grid;
  gap: clamp(28px, 4vw, 42px);
}

.footer-topline {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: clamp(36px, 7vw, 120px);
}

.footer-links {
  display: flex;
  gap: 22px;
  align-items: center;
}

.footer-links .footer-link-primary {
  display: inline-flex;
  align-items: center;
  color: var(--color-text);
  font-weight: 800;
}

.footer-links .footer-link-primary::before {
  width: 16px;
  height: 1px;
  margin-right: 9px;
  background: var(--color-accent);
  content: "";
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  width: min(100%, var(--container));
  margin: 34px auto 0;
  padding: 18px var(--side-pad) 0;
  border-top: 1px solid var(--color-line-soft);
  color: rgba(168, 168, 168, 0.5);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  line-height: 1.4;
  text-transform: uppercase;
}

body.audit-page {
  background:
    radial-gradient(circle at 78% 14%, rgba(255, 192, 0, 0.06), transparent 24rem),
    radial-gradient(circle at 16% 72%, rgba(255, 255, 255, 0.035), transparent 28rem),
    linear-gradient(180deg, #050505 0%, #080808 42%, #050505 100%);
}

body.audit-page::before {
  background-size: 54px 54px;
  opacity: 0.82;
}

.audit-page .site-header.is-scrolled {
  border-color: rgba(255, 192, 0, 0.1);
}

.audit-page .section {
  border-top-color: rgba(255, 255, 255, 0.08);
}

.audit-page .section::after {
  position: absolute;
  top: 0;
  right: var(--side-pad);
  left: var(--side-pad);
  height: 1px;
  background: linear-gradient(90deg, rgba(255, 192, 0, 0.18), transparent 34%, rgba(255, 255, 255, 0.06));
  content: "";
  pointer-events: none;
}

.audit-hero {
  min-height: 100vh;
}

.audit-page .hero-title {
  max-width: 17ch;
  font-size: clamp(64px, 7.3vw, 118px);
}

.audit-page .hero-copy {
  gap: 24px;
  margin-top: clamp(44px, 7vh, 84px);
}

.audit-hero-inner {
  align-content: center;
  padding-bottom: clamp(56px, 6.5vw, 96px);
}

.audit-hero-note {
  max-width: 720px;
  color: var(--color-subtle);
  font-size: clamp(17px, 1.18vw, 21px);
  line-height: 1.58;
}

.audit-system-field {
  position: absolute;
  top: 15%;
  right: max(24px, calc((100vw - var(--container)) / 2 + var(--side-pad)));
  width: min(40vw, 620px);
  height: min(52vh, 520px);
  pointer-events: none;
  opacity: 0.58;
}

.audit-system-field::before,
.audit-system-field::after {
  position: absolute;
  content: "";
  pointer-events: none;
}

.audit-system-field::before {
  top: 14%;
  right: 14%;
  width: 38%;
  height: 38%;
  border: 1px solid rgba(255, 192, 0, 0.1);
  background:
    linear-gradient(rgba(255, 192, 0, 0.08), rgba(255, 192, 0, 0.08)) 0 50% / 100% 1px no-repeat,
    linear-gradient(90deg, rgba(255, 192, 0, 0.08), rgba(255, 192, 0, 0.08)) 50% 0 / 1px 100% no-repeat;
}

.audit-system-field::after {
  right: 0;
  bottom: 22%;
  width: 46%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 192, 0, 0.3), rgba(255, 255, 255, 0.1));
  transform: rotate(-14deg);
}

.audit-grid-frame,
.audit-axis,
.audit-node,
.audit-status {
  position: absolute;
}

.audit-grid-frame {
  inset: 0;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background:
    linear-gradient(135deg, rgba(255, 192, 0, 0.08) 0 1px, transparent 1px) 0 0 / 18px 18px,
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(135deg, transparent, #000 16%, #000 76%, transparent);
}

.audit-grid-frame::before,
.audit-grid-frame::after {
  position: absolute;
  width: 68px;
  height: 68px;
  border-color: rgba(255, 192, 0, 0.18);
  content: "";
}

.audit-grid-frame::before {
  top: -1px;
  left: -1px;
  border-top: 1px solid;
  border-left: 1px solid;
}

.audit-grid-frame::after {
  right: -1px;
  bottom: -1px;
  border-right: 1px solid;
  border-bottom: 1px solid;
}

.audit-axis {
  background: rgba(255, 255, 255, 0.11);
}

.axis-x {
  top: 50%;
  right: 10%;
  left: 10%;
  height: 1px;
}

.axis-y {
  top: 12%;
  bottom: 12%;
  left: 50%;
  width: 1px;
}

.audit-node {
  width: 10px;
  height: 10px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 999px;
  background: #050505;
}

.node-ready {
  top: 31%;
  left: 58%;
  border-color: rgba(255, 192, 0, 0.68);
}

.node-risk {
  top: 61%;
  left: 32%;
}

.node-fix {
  top: 68%;
  left: 72%;
  border-color: rgba(255, 192, 0, 0.34);
}

.audit-status {
  padding: 5px 7px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.38);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.status-a {
  top: 12%;
  right: 10%;
}

.status-b {
  bottom: 13%;
  left: 11%;
  color: rgba(255, 192, 0, 0.42);
}

.audit-boundary {
  max-width: 940px;
  border-top-color: rgba(255, 192, 0, 0.2);
}

.audit-hero-brief {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  max-width: 860px;
  margin-top: clamp(34px, 5vh, 54px);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

.audit-hero-brief div {
  position: relative;
  display: grid;
  gap: 12px;
  min-height: 88px;
  padding: 20px clamp(18px, 2vw, 28px) 18px 0;
  border-right: 1px solid rgba(255, 255, 255, 0.07);
}

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

.audit-hero-brief div::before {
  width: 9px;
  height: 9px;
  border: 1px solid rgba(255, 192, 0, 0.5);
  border-radius: 999px;
  content: "";
}

.audit-hero-brief span {
  color: var(--color-dim);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.audit-hero-brief strong {
  color: var(--color-text);
  font-size: clamp(14px, 0.95vw, 17px);
  font-weight: 720;
  letter-spacing: 0.08em;
  line-height: 1.2;
  text-transform: uppercase;
}

.audit-exists-copy .body-stack {
  margin-top: 44px;
}

.audit-exists-section {
  background:
    linear-gradient(90deg, rgba(255, 192, 0, 0.025), transparent 30%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.018), rgba(255, 255, 255, 0));
}

.audit-exists-section .two-column {
  position: relative;
}

.audit-exists-section .two-column::after {
  position: absolute;
  right: var(--side-pad);
  bottom: -34px;
  color: rgba(255, 255, 255, 0.045);
  font-size: clamp(52px, 8vw, 132px);
  font-weight: 800;
  letter-spacing: -0.06em;
  line-height: 0.8;
  content: "CHECK";
  pointer-events: none;
}

.audit-module-grid {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: var(--module-gap);
  border-top: 1px solid var(--line-default);
  border-left: 1px solid var(--color-line-soft);
}

.audit-module-grid::before {
  position: absolute;
  top: -42px;
  right: 0;
  width: min(40%, 440px);
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 192, 0, 0.28));
  content: "";
}

.audit-module {
  position: relative;
  min-height: 280px;
  padding: 28px clamp(22px, 2.4vw, 36px) 30px;
  border-right: 1px solid var(--color-line-soft);
  border-bottom: 1px solid var(--color-line-soft);
  background:
    linear-gradient(rgba(255, 255, 255, 0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.018) 1px, transparent 1px);
  background-size: 38px 38px;
  transition: border-color 180ms ease, background-color 180ms ease;
}

.audit-module::before {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 18px;
  height: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  border-right: 1px solid rgba(255, 255, 255, 0.1);
  content: "";
}

.audit-module:hover {
  border-color: var(--line-hover);
  background-color: rgba(255, 255, 255, 0.014);
}

.audit-module.is-risk {
  grid-column: span 2;
  min-height: 250px;
  background:
    linear-gradient(90deg, rgba(255, 192, 0, 0.035), transparent 44%),
    linear-gradient(rgba(255, 255, 255, 0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.018) 1px, transparent 1px);
  background-size: auto, 38px 38px, 38px 38px;
}

.audit-module.is-risk::after {
  position: absolute;
  right: 22px;
  bottom: 22px;
  width: 96px;
  height: 1px;
  background: linear-gradient(90deg, rgba(255, 192, 0, 0.36), transparent);
  content: "";
}

.audit-module-marker {
  position: relative;
  display: inline-block;
  width: 42px;
  height: 42px;
  color: rgba(255, 255, 255, 0.3);
}

.audit-module-marker::before,
.audit-module-marker::after {
  position: absolute;
  content: "";
}

.marker-square::before {
  inset: 8px;
  border: 1px solid currentColor;
}

.marker-square::after {
  top: 20px;
  left: 9px;
  width: 24px;
  height: 1px;
  background: rgba(255, 192, 0, 0.52);
}

.marker-proof::before {
  top: 9px;
  left: 8px;
  width: 26px;
  height: 24px;
  border-top: 1px solid currentColor;
  border-bottom: 1px solid currentColor;
}

.marker-proof::after {
  top: 17px;
  left: 16px;
  width: 10px;
  height: 10px;
  border: 1px solid rgba(255, 192, 0, 0.58);
  background: #050505;
}

.marker-market::before {
  inset: 7px;
  border: 1px solid currentColor;
  border-radius: 999px;
}

.marker-market::after {
  top: 9px;
  left: 20px;
  width: 1px;
  height: 24px;
  background: rgba(255, 192, 0, 0.42);
  box-shadow: -8px 11px 0 -0.5px rgba(255, 255, 255, 0.25), 8px 11px 0 -0.5px rgba(255, 255, 255, 0.25);
}

.marker-rhythm::before {
  top: 12px;
  left: 6px;
  width: 30px;
  height: 18px;
  background:
    linear-gradient(rgba(255, 192, 0, 0.5), rgba(255, 192, 0, 0.5)) 0 50% / 8px 1px no-repeat,
    linear-gradient(currentColor, currentColor) 12px 50% / 8px 1px no-repeat,
    linear-gradient(currentColor, currentColor) 24px 50% / 8px 1px no-repeat;
}

.marker-rhythm::after {
  top: 12px;
  left: 5px;
  width: 32px;
  height: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.marker-structure::before {
  inset: 8px;
  background:
    linear-gradient(currentColor, currentColor) 0 0 / 26px 1px no-repeat,
    linear-gradient(currentColor, currentColor) 0 12px / 26px 1px no-repeat,
    linear-gradient(currentColor, currentColor) 0 25px / 26px 1px no-repeat,
    linear-gradient(90deg, currentColor, currentColor) 0 0 / 1px 26px no-repeat,
    linear-gradient(90deg, currentColor, currentColor) 13px 0 / 1px 26px no-repeat,
    linear-gradient(90deg, currentColor, currentColor) 25px 0 / 1px 26px no-repeat;
}

.marker-structure::after {
  top: 10px;
  left: 10px;
  width: 6px;
  height: 6px;
  border: 1px solid rgba(255, 192, 0, 0.65);
  border-radius: 999px;
  background: #050505;
}

.marker-loop::before {
  inset: 9px;
  border: 1px dashed currentColor;
  border-radius: 999px;
}

.marker-loop::after {
  top: 11px;
  right: 7px;
  width: 8px;
  height: 8px;
  border-top: 1px solid rgba(255, 192, 0, 0.62);
  border-right: 1px solid rgba(255, 192, 0, 0.62);
  transform: rotate(40deg);
}

.marker-risk::before {
  top: 7px;
  left: 7px;
  width: 28px;
  height: 28px;
  border: 1px solid rgba(255, 192, 0, 0.46);
}

.marker-risk::after {
  top: 20px;
  left: 11px;
  width: 20px;
  height: 1px;
  background: rgba(255, 255, 255, 0.34);
  transform: rotate(-42deg);
}

.audit-module-index {
  display: block;
  margin-top: 58px;
  color: var(--color-accent);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.audit-module h3 {
  max-width: 12ch;
  margin-top: 16px;
  color: var(--color-text);
  font-size: clamp(21px, 1.55vw, 28px);
  line-height: 1.08;
  font-weight: 620;
  letter-spacing: -0.03em;
}

.audit-module p {
  max-width: 30ch;
  margin-top: 14px;
  color: var(--color-subtle);
  font-size: clamp(15px, 1vw, 17px);
  line-height: 1.52;
}

.audit-output-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.7fr) minmax(0, 1fr);
  gap: clamp(56px, 8vw, 132px);
  align-items: start;
}

.audit-output-copy .section-label + .section-title {
  margin-top: clamp(30px, 3.2vw, 52px);
}

.audit-line-list {
  display: grid;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-default);
  list-style: none;
}

.audit-line-list li {
  position: relative;
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 16px;
  align-items: center;
  min-height: 72px;
  padding: 18px 0;
  border-bottom: 1px solid var(--color-line-soft);
  color: var(--color-muted);
  font-size: clamp(17px, 1.3vw, 22px);
  line-height: 1.25;
}

.audit-line-list li::after {
  position: absolute;
  right: 0;
  bottom: -1px;
  width: 42px;
  height: 1px;
  background: rgba(255, 192, 0, 0.18);
  content: "";
}

.audit-line-list li span {
  width: 10px;
  height: 10px;
  border: 1px solid rgba(255, 192, 0, 0.46);
  border-radius: 999px;
}

.audit-output-section .audit-line-list li {
  align-items: start;
}

.audit-output-section .audit-line-list li > span {
  margin-top: 0.48em;
}

.audit-output-detail {
  width: 100%;
}

.audit-output-detail summary {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  color: var(--color-muted);
  cursor: pointer;
  list-style: none;
  transition: color 180ms ease;
}

.audit-output-detail summary:hover {
  color: var(--color-text);
}

.audit-output-detail summary::-webkit-details-marker {
  display: none;
}

.audit-output-detail summary::after {
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  border-top: 1px solid rgba(255, 192, 0, 0.56);
  border-right: 1px solid rgba(255, 192, 0, 0.56);
  content: "";
  transform: rotate(135deg) translate(-2px, 2px);
  transition: transform 180ms ease, border-color 180ms ease;
}

.audit-output-detail[open] summary {
  color: var(--color-text);
}

.audit-output-detail[open] summary::after {
  border-color: rgba(255, 255, 255, 0.42);
  transform: rotate(-45deg) translate(-2px, 2px);
}

.audit-output-detail p {
  max-width: 58ch;
  margin-top: 16px;
  color: var(--color-subtle);
  font-size: clamp(15px, 1vw, 17px);
  line-height: 1.58;
}

.audit-flow {
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  margin-top: var(--module-gap);
  border-top: 1px solid var(--line-default);
  border-bottom: 1px solid var(--color-line-soft);
  background:
    linear-gradient(90deg, rgba(255, 192, 0, 0.025), transparent 55%),
    linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px);
  background-size: auto, 100% 46px;
}

.audit-flow::before {
  position: absolute;
  top: -1px;
  left: 0;
  width: 78%;
  height: 1px;
  background: linear-gradient(90deg, rgba(255, 192, 0, 0.35), rgba(255, 255, 255, 0.08));
  content: "";
}

.audit-flow-step {
  position: relative;
  min-height: 230px;
  padding: 30px clamp(18px, 2.1vw, 32px) 32px 0;
  border-right: 1px solid var(--color-line-soft);
}

.audit-flow-step::after {
  position: absolute;
  top: 88px;
  right: clamp(18px, 2vw, 30px);
  left: 0;
  height: 1px;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.14), transparent);
  content: "";
}

.audit-flow-step:last-child {
  border-right: 0;
}

.audit-flow-step::before {
  position: absolute;
  top: -6px;
  left: 0;
  width: 11px;
  height: 11px;
  border: 1px solid rgba(255, 192, 0, 0.48);
  border-radius: 999px;
  background: #050505;
  content: "";
}

.audit-flow-step span {
  color: var(--color-accent);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.audit-flow-step h3 {
  max-width: 11ch;
  margin-top: 86px;
  color: var(--color-text);
  font-size: clamp(20px, 1.35vw, 25px);
  line-height: 1.08;
  font-weight: 620;
  letter-spacing: -0.03em;
}

.audit-flow-detail {
  max-width: 18ch;
  margin-top: 24px;
}

.audit-flow-detail summary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--color-dim);
  cursor: pointer;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.14em;
  line-height: 1.3;
  list-style: none;
  text-transform: uppercase;
  transition: color 180ms ease;
}

.audit-flow-detail summary::-webkit-details-marker {
  display: none;
}

.audit-flow-detail summary::before {
  width: 12px;
  height: 1px;
  background: rgba(255, 192, 0, 0.42);
  content: "";
}

.audit-flow-detail summary::after {
  width: 7px;
  height: 7px;
  border-top: 1px solid rgba(255, 192, 0, 0.5);
  border-right: 1px solid rgba(255, 192, 0, 0.5);
  content: "";
  transform: rotate(135deg) translate(-1px, 1px);
  transition: transform 180ms ease, border-color 180ms ease;
}

.audit-flow-detail summary:hover,
.audit-flow-detail[open] summary {
  color: var(--color-accent);
}

.audit-flow-detail[open] summary::after {
  border-color: rgba(255, 255, 255, 0.42);
  transform: rotate(-45deg) translate(-1px, 1px);
}

.audit-flow-detail p {
  max-width: 28ch;
  margin-top: 14px;
  color: var(--color-subtle);
  font-size: 14px;
  line-height: 1.5;
}

.audit-fit-section {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.012), rgba(255, 192, 0, 0.018), rgba(255, 255, 255, 0));
}

.audit-limits-section .section-lede {
  max-width: 560px;
}

.audit-promise-list {
  margin-top: var(--module-gap);
}

.audit-page .final-cta {
  min-height: 52vh;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 640ms ease, transform 640ms ease;
}

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

@media (max-width: 980px) {
  :root {
    --side-pad: 28px;
    --section-pad: 96px;
    --module-gap: 58px;
  }

  .nav-shell {
    grid-template-columns: auto auto;
    justify-content: space-between;
  }

  .nav-toggle {
    display: inline-grid;
    width: 42px;
    height: 42px;
    place-content: center;
    gap: 6px;
    border: 1px solid var(--color-line);
    background: transparent;
    color: var(--color-text);
  }

  .nav-toggle-line {
    width: 18px;
    height: 1px;
    background: currentColor;
  }

  .nav-links {
    position: fixed;
    top: var(--nav-height);
    right: 0;
    left: 0;
    display: grid;
    justify-content: stretch;
    gap: 0;
    padding: 16px 28px 24px;
    border-bottom: 1px solid var(--color-line);
    background: rgba(5, 5, 5, 0.96);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-12px);
    transition: opacity 180ms ease, transform 180ms ease;
  }

  .nav-links.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .nav-links a {
    padding: 15px 0;
    border-bottom: 1px solid var(--color-line-soft);
  }

  .nav-links a::after {
    display: none;
  }

  .nav-cta {
    display: none;
  }

  .hero {
    min-height: 92vh;
  }

  .hero-inner {
    min-height: calc(92vh - var(--nav-height));
  }

  .hero-title {
    font-size: clamp(48px, 14vw, 72px);
    line-height: 0.93;
    letter-spacing: -0.045em;
  }

  .hero-subtitle {
    max-width: 620px;
    font-size: 18px;
    line-height: 1.52;
  }

  .hero-system-field {
    top: 14%;
    right: 20px;
    width: 42vw;
    height: 34vh;
    opacity: 0.26;
  }

  .audit-system-field {
    top: 13%;
    right: 20px;
    width: 48vw;
    height: 36vh;
    opacity: 0.26;
  }

  .audit-hero-brief {
    grid-template-columns: 1fr;
    max-width: 620px;
  }

  .audit-hero-brief div {
    grid-template-columns: 10px minmax(88px, auto) minmax(0, 1fr);
    align-items: center;
    min-height: 58px;
    padding: 14px 0;
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  }

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

  .audit-hero-brief div::before {
    grid-column: 1;
  }

  .audit-hero-brief span {
    grid-column: 2;
  }

  .audit-hero-brief strong {
    grid-column: 3;
  }

  .two-column,
  .diagnostic-layout,
  .boundary-layout,
  .section-heading-row,
  .audit-output-layout {
    grid-template-columns: 1fr;
    gap: 44px;
  }

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

  .audit-module.is-risk {
    grid-column: span 2;
  }

  .method-system,
  .product-path-rail,
  .audit-flow {
    grid-template-columns: 1fr;
  }

  .audit-flow::before {
    top: 0;
    bottom: 0;
    left: 5px;
    width: 1px;
    height: auto;
    background: linear-gradient(180deg, rgba(255, 192, 0, 0.3), rgba(255, 255, 255, 0.08));
  }

  .audit-flow-step {
    min-height: auto;
    padding: 28px 0 28px 32px;
    border-right: 0;
    border-bottom: 1px solid var(--color-line-soft);
  }

  .audit-flow-step:last-child {
    border-bottom: 0;
  }

  .audit-flow-step::before {
    top: 34px;
  }

  .audit-flow-step h3 {
    max-width: 100%;
    margin-top: 34px;
  }

  .audit-flow-detail {
    max-width: 100%;
  }

  .audit-flow-detail p {
    max-width: 46ch;
  }

  .audit-flow-step::after {
    display: none;
  }

  .method-center,
  .method-connector {
    display: none;
  }

  .pillar,
  .pillar + .pillar,
  .product-module,
  .product-module + .product-module {
    min-height: auto;
    padding: 30px 0 34px;
    border-right: 0;
    border-bottom: 1px solid var(--color-line-soft);
  }

  .pillar:last-child,
  .product-module:last-child {
    border-bottom: 0;
  }

  .pillar h3 {
    margin-top: 64px;
  }

  .product-path-rail::before {
    top: 0;
    bottom: 0;
    left: 5px;
    width: 1px;
    height: auto;
    background: linear-gradient(180deg, rgba(255, 192, 0, 0.3), rgba(255, 255, 255, 0.1));
  }

  .product-rail-labels {
    display: none;
  }

  .product-module {
    padding-left: 32px;
  }

  .product-module + .product-module {
    padding-left: 32px;
  }

  .product-module::before,
  .product-module + .product-module::before {
    top: 34px;
    left: 0;
  }

  .product-stage-marker {
    margin-top: 44px;
  }

  .product-module h3 {
    max-width: 100%;
    margin-top: 44px;
  }

  .product-role {
    min-height: auto;
  }

  .path-fit-head,
  .path-fit-row {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .path-fit-head {
    display: none;
  }

  .principle-map {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .principle-map::before,
  .principle-map::after,
  .principle-center {
    display: none;
  }

  .principle-card,
  .principle-card.is-top-right,
  .principle-card.is-bottom-right {
    align-items: flex-start;
    justify-content: start;
    min-height: auto;
    padding: 30px 0;
    border-bottom: 1px solid var(--color-line-soft);
    text-align: left;
  }

  .principle-card:last-child {
    border-bottom: 0;
  }

  .principle-card::before {
    top: 30px;
    right: 0;
    left: auto;
    width: 28px;
    height: 28px;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    border-right: 1px solid rgba(255, 255, 255, 0.12);
    border-bottom: 0;
    border-left: 0;
  }

  .principle-card h3 {
    max-width: 100%;
    margin-top: 38px;
  }

  .principle-card p {
    max-width: 100%;
    margin-top: 16px;
    white-space: normal;
  }

  .proof-architecture,
  .article-list,
  .article-row {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .article-list {
    margin-top: var(--module-gap);
  }

  .article-row {
    min-height: auto;
    padding: 30px 0;
    border-right: 0;
    border-bottom: 1px solid var(--color-line-soft);
  }

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

  .article-index,
  .article-arrow {
    right: 0;
  }

  .article-row h3 {
    max-width: 17ch;
    margin-top: 38px;
    font-size: clamp(22px, 6vw, 30px);
    line-height: 1.08;
    letter-spacing: -0.025em;
  }

  .article-row p {
    margin-top: 18px;
  }

  .proof-architecture::before {
    top: 0;
    bottom: 0;
    left: 5px;
    width: 1px;
    height: auto;
    background: linear-gradient(180deg, rgba(255, 192, 0, 0.24), rgba(255, 255, 255, 0.08));
  }

  .proof-block {
    min-height: auto;
    padding: 28px 0 22px 32px;
    border-bottom: 1px solid var(--color-line-soft);
  }

  .proof-copy,
  .proof-block h3,
  .proof-block p {
    max-width: 100%;
  }

  .proof-block::before {
    top: 35px;
  }

  .path-fit-condition,
  .proof-block p,
  .system-row p,
  .article-row p {
    margin-top: 0;
  }

  .article-arrow {
    position: static;
    text-align: left;
  }
}

@media (max-width: 640px) {
  :root {
    --side-pad: 20px;
    --section-pad: 78px;
    --module-gap: 52px;
  }

  .hero-inner {
    padding-top: 54px;
    padding-bottom: 34px;
  }

  .hero-copy {
    gap: 22px;
    margin-top: 42px;
  }

  .hero-actions {
    width: 100%;
  }

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

  .audit-page .hero-title {
    max-width: 10ch;
  }

  .audit-hero-note {
    font-size: 16px;
  }

  .button {
    min-height: 48px;
  }

  .final-cta .button,
  .product-module-action {
    width: fit-content;
  }

  .section-title {
    font-size: clamp(40px, 11vw, 58px);
    line-height: 1;
    letter-spacing: -0.045em;
  }

  .principles-section .section-title {
    font-size: clamp(40px, 10vw, 58px);
    white-space: normal;
  }

  .diagnostic-intro > .section-label + .section-title,
  .section-heading-row .section-label + .section-title,
  .boundary-copy > .section-label + .section-title {
    margin-top: 24px;
  }

  .diagnostic-map {
    grid-template-columns: 1fr;
  }

  .audit-module-grid {
    grid-template-columns: 1fr;
  }

  .audit-module,
  .audit-module.is-risk {
    grid-column: auto;
    min-height: 236px;
  }

  .audit-hero {
    min-height: 94vh;
  }

  .audit-system-field {
    width: 64vw;
    opacity: 0.18;
  }

  .audit-hero-brief {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    margin-top: 30px;
  }

  .audit-hero-brief div {
    display: grid;
    grid-template-columns: 1fr;
    gap: 8px;
    min-height: 92px;
    padding: 14px 10px 12px 0;
    border-right: 1px solid rgba(255, 255, 255, 0.07);
    border-bottom: 0;
  }

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

  .audit-hero-brief div::before,
  .audit-hero-brief span,
  .audit-hero-brief strong {
    grid-column: auto;
  }

  .audit-hero-brief span {
    font-size: 9px;
  }

  .audit-hero-brief strong {
    font-size: 11px;
    line-height: 1.25;
  }

  .audit-exists-section .two-column::after {
    display: none;
  }

  .audit-module-index {
    margin-top: 44px;
  }

  .audit-line-list li {
    min-height: 64px;
    font-size: 17px;
  }

  .diagnostic-cell {
    min-height: 210px;
  }

  .boundary-list li {
    font-size: 17px;
  }

  .boundary-list {
    grid-template-columns: 1fr;
  }

  .system-equation {
    grid-template-columns: 1fr;
    gap: 12px;
    max-width: 100%;
  }

  .system-equation i {
    width: 1px;
    height: 28px;
    margin: 0 0 0 8px;
    background: linear-gradient(180deg, rgba(255, 192, 0, 0.38), rgba(255, 255, 255, 0.12));
  }

  .brand-mark img,
  .footer-brand img {
    top: -14px;
    left: -17px;
    width: 142px;
  }

  .brand-mark .logo-crop {
    width: 108px;
    height: 20px;
  }

  .footer-brand .logo-crop {
    width: 140px;
    height: 26px;
  }

  .footer-brand img {
    top: -17px;
    left: -23px;
    width: 184px;
  }

  .footer-topline {
    display: grid;
    gap: 34px;
  }

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

  .footer-bottom {
    display: grid;
    gap: 10px;
  }
}

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

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