:root {
  --font-sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "SFMono-Regular", "Cascadia Code", "Roboto Mono", ui-monospace, monospace;
  --max-width: 1480px;
  --page-pad: clamp(22px, 4vw, 72px);
  --header-height: 84px;
  --radius-sm: 4px;
  --radius-md: 6px;
  --ease: cubic-bezier(0.2, 0.75, 0.25, 1);
  --signal: #9bbbd3;
  --signal-bright: #c4d6e3;
  --signal-soft: rgba(155, 187, 211, 0.12);
  --amber: #d39746;
  --amber-soft: rgba(211, 151, 70, 0.14);
}

html[data-theme="dark"] {
  --bg: #080a0b;
  --bg-rgb: 8, 10, 11;
  --surface: #101315;
  --surface-soft: rgba(13, 18, 25, 0.78);
  --surface-raised: #181d21;
  --surface-glass: rgba(15, 22, 30, 0.58);
  --text: #f4f6fa;
  --text-strong: #ffffff;
  --muted: #aab3bd;
  --quiet: #78838f;
  --line: rgba(186, 201, 216, 0.2);
  --line-strong: rgba(207, 221, 236, 0.36);
  --grid: rgba(139, 167, 195, 0.12);
  --header: rgba(5, 7, 10, 0.76);
  --shadow: rgba(0, 0, 0, 0.54);
  --floor-start: rgba(34, 47, 62, 0.54);
  --floor-end: rgba(6, 9, 13, 0.08);
  --plane-start: rgba(103, 139, 175, 0.2);
  --plane-end: rgba(25, 37, 50, 0.04);
  --inverse: #05070a;
  --inverse-text: #f4f6fa;
  --readability-solid: rgba(5, 7, 10, 0.96);
  --readability-strong: rgba(5, 7, 10, 0.82);
  --readability-soft: rgba(5, 7, 10, 0.52);
  --readability-panel: rgba(7, 11, 16, 0.86);
}

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

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

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  color: var(--text);
  background:
    radial-gradient(circle at 76% 2%, rgba(120, 145, 168, 0.11), transparent 26rem),
    var(--bg);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  transition: color 300ms ease, background-color 300ms ease;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  opacity: 0.28;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 68px 68px;
  mask-image: linear-gradient(to bottom, transparent 0, #000 10%, #000 82%, transparent 100%);
}

::selection {
  color: #fff;
  background: var(--signal);
}

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

button,
input,
textarea {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  color: inherit;
}

img,
svg {
  display: block;
  max-width: 100%;
}

p,
h1,
h2,
h3,
blockquote,
figure,
dl,
dd {
  margin: 0;
}

.shell {
  width: min(100%, calc(var(--max-width) + 2 * var(--page-pad)));
  margin-inline: auto;
  padding-inline: var(--page-pad);
}

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

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 1000;
  padding: 10px 14px;
  color: #fff;
  background: var(--signal);
  transform: translateY(-160%);
  transition: transform 180ms ease;
}

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

:focus-visible {
  outline: 2px solid var(--signal-bright);
  outline-offset: 4px;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: var(--header-height);
  border-bottom: 1px solid transparent;
  background: linear-gradient(to bottom, rgba(var(--bg-rgb), 0.95), rgba(var(--bg-rgb), 0.24));
  transition: border-color 220ms ease, background-color 220ms ease, backdrop-filter 220ms ease;
}

.site-header.is-scrolled {
  border-bottom-color: var(--line);
  background: var(--header);
  backdrop-filter: blur(18px) saturate(130%);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 28px;
}

.brand {
  display: block;
  flex: 0 0 auto;
  width: clamp(185px, 17vw, 244px);
}

.brand img {
  width: 100%;
  height: auto;
}

.primary-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(16px, 2.1vw, 34px);
  margin-left: auto;
}

.processing-toc {
  border-block: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 92%, transparent);
}

.processing-toc-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 64px;
}

.processing-toc a {
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.processing-toc a:hover,
.processing-toc a:focus-visible {
  color: var(--text-strong);
}

.primary-nav a,
.footer-layout nav a {
  color: var(--muted);
  font-size: 0.88rem;
  letter-spacing: 0.015em;
  transition: color 180ms ease;
}

.primary-nav a:hover,
.footer-layout nav a:hover {
  color: var(--text-strong);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 18px;
}

.header-cta {
  min-width: 152px;
  padding: 11px 18px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  color: var(--text-strong);
  text-align: center;
  font-size: 0.86rem;
  transition: border-color 180ms ease, background-color 180ms ease;
}

.header-cta:hover {
  border-color: var(--text);
  background: var(--surface-soft);
}

.menu-button,
.mobile-menu {
  display: none;
}

.hero {
  position: relative;
  min-height: 100svh;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.hero-atmosphere {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse at 70% 20%, rgba(128, 149, 169, 0.15), transparent 32%),
    radial-gradient(ellipse at 79% 62%, var(--signal-soft), transparent 28%),
    linear-gradient(112deg, transparent 18%, rgba(142, 162, 182, 0.05) 48%, transparent 70%);
}

.hero-layout {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(390px, 0.83fr) minmax(620px, 1.47fr);
  align-items: center;
  min-height: calc(100svh - 72px);
  padding-top: calc(var(--header-height) + 42px);
  padding-bottom: 72px;
}

.hero-copy {
  position: relative;
  z-index: 4;
  max-width: 610px;
  padding: 36px 0 68px;
}

.hero-copy::before {
  position: absolute;
  inset: -54px -110px -46px calc(-1 * var(--page-pad));
  z-index: -1;
  pointer-events: none;
  content: "";
  background: linear-gradient(90deg, var(--readability-solid) 0%, var(--readability-strong) 58%, transparent 100%);
  filter: blur(18px);
}

.eyebrow {
  margin-bottom: 24px;
  color: var(--quiet);
  font-family: var(--font-mono);
  font-size: clamp(0.64rem, 0.75vw, 0.76rem);
  line-height: 1.3;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1,
h2 {
  max-width: 15ch;
  color: var(--text-strong);
  font-weight: 420;
  letter-spacing: -0.052em;
  text-wrap: balance;
}

h1 {
  font-size: clamp(3.6rem, 5.65vw, 6.9rem);
  line-height: 0.96;
}

h2 {
  font-size: clamp(2.7rem, 4.55vw, 5.7rem);
  line-height: 0.98;
}

.hero-lede,
.section-intro > p:last-child,
.access-layout > div > p:last-child {
  max-width: 52ch;
  color: var(--muted);
  font-size: clamp(1rem, 1.32vw, 1.28rem);
  line-height: 1.55;
}

.hero-lede {
  max-width: 45ch;
  margin-top: 32px;
}

.actions {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-top: 42px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 52px;
  padding: 14px 24px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-weight: 520;
  cursor: pointer;
  transition: transform 180ms var(--ease), background-color 180ms ease, border-color 180ms ease;
}

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

.button-primary {
  color: #fff;
  background: var(--signal);
  box-shadow: 0 14px 42px rgba(36, 107, 253, 0.22);
}

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

.button-link,
.text-button {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0;
  border: 0;
  color: var(--text);
  background: transparent;
  font-size: 0.94rem;
  cursor: pointer;
}

.button-link::after,
.text-button::after {
  position: absolute;
  right: 0;
  bottom: 4px;
  left: 0;
  height: 1px;
  content: "";
  background: currentColor;
  transform-origin: right;
  transition: transform 220ms var(--ease);
}

.button-link:hover::after,
.text-button:hover::after {
  transform: scaleX(0.35);
}

.hero-instrument {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  z-index: 1;
  width: 100vw;
  margin-left: -50vw;
  pointer-events: none;
}

.hero-plate {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: contrast(1.06) saturate(1.05);
  user-select: none;
}

.hero-annotations {
  position: absolute;
  inset: 0;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: clamp(0.55rem, 0.72vw, 0.72rem);
  letter-spacing: 0.025em;
}

.annotation {
  position: absolute;
  z-index: 2;
  white-space: nowrap;
  text-shadow: 0 1px 14px var(--bg);
}

.annotation-work {
  top: 46.8%;
  left: 38.1%;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.annotation-role {
  top: 33.5%;
  left: 43.3%;
}

.annotation-interview {
  top: 35.2%;
  left: 61.8%;
}

.annotation-review {
  top: 40.5%;
  left: 77.2%;
}

.annotation-human {
  top: 47.1%;
  left: 91.3%;
  line-height: 1.7;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.annotation-evidence {
  top: 79.4%;
  left: 61%;
  letter-spacing: 0.48em;
  text-transform: uppercase;
}

.floor-start { stop-color: var(--floor-start); }
.floor-end { stop-color: var(--floor-end); }
.plane-start { stop-color: var(--plane-start); }
.plane-end { stop-color: var(--plane-end); }

.map-floor {
  fill: url(#floor-gradient);
  stroke: var(--line);
  stroke-width: 1;
}

.floor-grid path {
  fill: none;
  stroke: var(--grid);
  stroke-width: 1;
}

.planes polygon {
  fill: url(#plane-gradient);
  stroke: var(--line-strong);
  stroke-width: 1;
}

.secondary-paths path,
.proof-connector path {
  fill: none;
  stroke: var(--line-strong);
  stroke-width: 1.2;
}

.secondary-paths .amber-path {
  stroke: color-mix(in srgb, var(--amber) 58%, transparent);
}

.signal-path {
  fill: none;
  stroke: var(--signal-bright);
  stroke-width: 3;
  filter: drop-shadow(0 0 8px rgba(36, 107, 253, 0.9));
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
  animation: draw-signal 2.4s 420ms var(--ease) forwards;
}

@keyframes draw-signal {
  to { stroke-dashoffset: 0; }
}

.signal-nodes circle,
.proof-connector circle,
.shape-nodes circle {
  fill: var(--signal-bright);
  stroke: color-mix(in srgb, var(--signal-bright) 30%, white);
  stroke-width: 1.5;
}

.evidence-points circle {
  fill: var(--text);
  opacity: 0.72;
}

.map-blocks polygon {
  fill: var(--surface-glass);
  stroke: var(--line-strong);
}

.map-labels text,
.shape-labels text {
  fill: var(--text);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
}

.map-labels .floor-label {
  fill: var(--muted);
  font-size: 15px;
  letter-spacing: 0.22em;
}

.hero-index {
  position: absolute;
  right: 0;
  bottom: 24px;
  left: 0;
  z-index: 3;
  display: flex;
  justify-content: space-between;
  color: var(--quiet);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.section {
  position: relative;
  overflow: hidden;
  padding-block: clamp(110px, 13vw, 200px);
  border-bottom: 1px solid var(--line);
}

.section-intro {
  display: grid;
  grid-template-columns: minmax(260px, 0.62fr) minmax(520px, 1.2fr) minmax(260px, 0.62fr);
  align-items: end;
  gap: 42px;
  margin-bottom: clamp(70px, 8vw, 124px);
}

.section-intro .eyebrow {
  align-self: start;
  margin-top: 10px;
}

.section-intro > p:last-child {
  align-self: end;
}

.proof-section {
  background:
    linear-gradient(135deg, transparent 52%, var(--signal-soft) 100%),
    var(--bg);
}

.proof-instrument {
  position: relative;
  display: grid;
  grid-template-columns: minmax(360px, 1fr) minmax(160px, 0.35fr) minmax(330px, 0.82fr);
  align-items: center;
  min-height: 490px;
}

.proof-instrument::before {
  position: absolute;
  inset: -90px 24% -80px 16%;
  z-index: -1;
  content: "";
  background: radial-gradient(circle, var(--signal-soft), transparent 62%);
  filter: blur(20px);
}

.transcript-panel,
.criterion-panel {
  position: relative;
  z-index: 2;
  border: 1px solid var(--line-strong);
  background: linear-gradient(145deg, var(--surface-glass), var(--surface-soft));
  box-shadow: 0 30px 80px var(--shadow);
  backdrop-filter: blur(16px);
}

.transcript-panel {
  min-height: 390px;
  padding: clamp(24px, 3.4vw, 50px);
  transform: perspective(1000px) rotateY(4deg) rotateX(1deg);
}

.criterion-panel {
  min-height: 330px;
  padding: clamp(24px, 3vw, 42px);
  transform: perspective(1000px) rotateY(-4deg) translateY(34px);
}

.instrument-bar {
  display: flex;
  justify-content: space-between;
  gap: 22px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
  color: var(--quiet);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.transcript-panel .question {
  max-width: 48ch;
  margin-top: 38px;
  color: var(--muted);
  font-size: 0.9rem;
}

.transcript-panel blockquote {
  position: relative;
  max-width: 42ch;
  margin-top: 28px;
  padding: 18px 20px;
  border: 1px solid color-mix(in srgb, var(--signal) 48%, transparent);
  color: color-mix(in srgb, var(--signal-bright) 70%, var(--text));
  background: var(--signal-soft);
  font-family: var(--font-mono);
  font-size: clamp(0.84rem, 1.1vw, 1.02rem);
  line-height: 1.7;
}

.source-meta {
  display: flex;
  gap: 24px;
  margin-top: 28px;
  color: var(--quiet);
  font-size: 0.76rem;
}

.proof-connector {
  position: relative;
  z-index: 3;
  width: 125%;
  margin-left: -13%;
  overflow: visible;
}

.criterion-title {
  max-width: 18ch;
  margin-top: 32px;
  color: var(--text-strong);
  font-size: clamp(1.35rem, 2vw, 2rem);
  line-height: 1.15;
}

.criterion-panel dl {
  margin-top: 26px;
}

.criterion-panel dl div,
.dialog dl div {
  display: grid;
  grid-template-columns: 98px 1fr;
  gap: 16px;
  padding: 12px 0;
  border-top: 1px solid var(--line);
}

.criterion-panel dt,
.dialog dt {
  color: var(--quiet);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.criterion-panel dd,
.dialog dd {
  color: var(--muted);
  font-size: 0.84rem;
}

.finding {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 24px;
  color: var(--amber);
  font-family: var(--font-mono);
  font-size: 0.71rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.finding span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 12px color-mix(in srgb, var(--amber) 72%, transparent);
}

.proof-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  margin-top: 42px;
  color: var(--quiet);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.delivery-section {
  background:
    radial-gradient(circle at 50% 54%, var(--signal-soft), transparent 25rem),
    var(--bg);
}

.delivery-intro {
  grid-template-columns: minmax(230px, 0.55fr) minmax(560px, 1.25fr) minmax(310px, 0.72fr);
}

.delivery-instrument {
  position: relative;
  display: grid;
  grid-template-columns: 0.82fr 1.16fr 1.62fr 1.16fr 0.84fr;
  align-items: center;
  gap: clamp(18px, 2.2vw, 40px);
  min-height: 560px;
  padding: 68px 24px 30px;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
}

.delivery-instrument::before {
  position: absolute;
  top: 50%;
  right: 4%;
  left: 4%;
  z-index: 0;
  height: 1px;
  content: "";
  background: linear-gradient(90deg, transparent, var(--signal), var(--line-strong), var(--amber), transparent);
  box-shadow: 0 0 18px var(--signal-soft);
}

.objective-node,
.delivery-spine,
.reasoning-shape,
.alignment-findings,
.human-gate {
  position: relative;
  z-index: 2;
}

.objective-node,
.human-gate {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 170px;
  padding: 24px;
  border: 1px solid var(--line-strong);
  background: var(--surface-glass);
  backdrop-filter: blur(12px);
}

.objective-node span,
.shape-title,
.alignment-label,
.human-gate span {
  color: var(--quiet);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.objective-node strong,
.human-gate strong {
  margin-top: 16px;
  color: var(--text-strong);
  font-size: 1.05rem;
  line-height: 1.25;
  font-weight: 520;
}

.delivery-spine {
  display: grid;
  grid-template-columns: 1fr 10px 1fr;
  align-items: center;
  gap: 8px;
  padding: 24px 18px;
  border: 1px solid var(--line);
  background: var(--surface-soft);
}

.delivery-spine span {
  padding: 10px 6px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.67rem;
  text-align: center;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.delivery-spine i {
  width: 8px;
  height: 1px;
  background: var(--line-strong);
}

.delivery-spine i:nth-of-type(2),
.delivery-spine i:nth-of-type(3) {
  display: none;
}

.reasoning-shape {
  min-height: 470px;
  padding: 24px;
  border: 1px solid color-mix(in srgb, var(--signal) 32%, var(--line));
  background:
    radial-gradient(circle at 50% 50%, var(--signal-soft), transparent 55%),
    var(--surface-soft);
  box-shadow: 0 30px 90px var(--shadow);
}

.reasoning-shape svg {
  width: 100%;
  margin-top: 30px;
  overflow: visible;
}

.shape-grid path {
  fill: none;
  stroke: var(--line);
  stroke-width: 1;
}

.shape-signal {
  fill: var(--signal-soft);
  stroke: var(--signal-bright);
  stroke-width: 2;
  filter: drop-shadow(0 0 8px var(--signal-soft));
}

.shape-nodes .shape-amber {
  fill: var(--amber);
  stroke: color-mix(in srgb, var(--amber) 30%, white);
}

.shape-labels text {
  fill: var(--quiet);
  font-size: 12px;
}

.alignment-findings {
  padding: 26px 22px;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
  background: var(--surface-soft);
}

.alignment-findings > div {
  display: grid;
  grid-template-columns: 10px 1fr;
  gap: 12px;
  align-items: start;
  padding: 17px 0;
  border-bottom: 1px solid var(--line);
}

.alignment-findings > div:last-child {
  border-bottom: 0;
}

.alignment-findings i {
  width: 7px;
  height: 7px;
  margin-top: 5px;
  border-radius: 50%;
}

.alignment-findings .supported { background: var(--signal-bright); }
.alignment-findings .needs { background: var(--amber); }
.alignment-findings .unknown { border: 1px solid var(--quiet); }

.alignment-findings div span {
  color: var(--quiet);
  font-size: 0.72rem;
}

.alignment-findings div strong {
  display: block;
  margin-bottom: 3px;
  color: var(--text);
  font-size: 0.74rem;
  font-weight: 520;
}

.human-gate {
  align-items: center;
  text-align: center;
}

.gate-mark {
  position: relative;
  width: 28px;
  height: 28px;
  margin-top: 24px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
}

.gate-mark::after {
  position: absolute;
  inset: 8px;
  content: "";
  border-radius: 50%;
  background: var(--text);
  box-shadow: 0 0 14px var(--signal-soft);
}

.delivery-instrument figcaption {
  grid-column: 1 / -1;
  display: flex;
  justify-content: space-between;
  gap: 28px;
  padding-top: 26px;
  color: var(--quiet);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.04em;
}

.delivery-instrument figcaption strong {
  color: var(--text);
  font-weight: 500;
}

.engine-section {
  background: linear-gradient(to bottom, var(--surface-soft), transparent 46%);
}

.engine-rail {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-strong);
}

.engine-rail::before {
  position: absolute;
  top: -1px;
  left: 0;
  width: 76%;
  height: 2px;
  content: "";
  background: linear-gradient(90deg, var(--signal), var(--signal-bright), transparent);
  box-shadow: 0 0 16px var(--signal-soft);
}

.engine-rail li {
  position: relative;
  min-height: 270px;
  padding: 46px clamp(20px, 2.5vw, 40px) 30px;
  border-right: 1px solid var(--line);
}

.engine-rail li:last-child {
  border-right: 0;
}

.engine-rail li::before {
  position: absolute;
  top: -6px;
  left: clamp(20px, 2.5vw, 40px);
  width: 11px;
  height: 11px;
  border: 2px solid var(--bg);
  border-radius: 50%;
  content: "";
  background: var(--signal-bright);
  box-shadow: 0 0 14px var(--signal-soft);
}

.rail-index {
  display: block;
  margin-bottom: 58px;
  color: var(--quiet);
  font-family: var(--font-mono);
  font-size: 0.66rem;
}

.engine-rail strong {
  display: block;
  color: var(--text-strong);
  font-size: clamp(1.08rem, 1.4vw, 1.35rem);
  font-weight: 500;
}

.engine-rail p {
  max-width: 26ch;
  margin-top: 14px;
  color: var(--muted);
  font-size: 0.9rem;
}

.engine-rule {
  display: grid;
  grid-template-columns: auto minmax(80px, 1fr) auto;
  align-items: center;
  gap: 28px;
  margin-top: 62px;
}

.engine-rule span,
.engine-rule strong {
  color: var(--text-strong);
  font-size: clamp(1.7rem, 3vw, 3.1rem);
  font-weight: 430;
  letter-spacing: -0.035em;
}

.engine-rule i {
  height: 1px;
  background: linear-gradient(90deg, var(--signal), var(--amber));
}

.engine-rule small {
  grid-column: 1 / -1;
  color: var(--quiet);
  font-family: var(--font-mono);
  text-align: center;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.method-section {
  background:
    radial-gradient(circle at 16% 48%, var(--signal-soft), transparent 26rem),
    var(--bg);
}

.method-layout {
  display: grid;
  grid-template-columns: minmax(360px, 0.78fr) minmax(560px, 1.22fr);
  gap: clamp(70px, 11vw, 180px);
  align-items: start;
}

.method-layout .section-intro {
  position: sticky;
  top: calc(var(--header-height) + 72px);
  display: block;
  margin-bottom: 0;
}

.method-layout .section-intro > p:last-of-type {
  margin-top: 32px;
}

.method-layout .button-link {
  margin-top: 38px;
}

.method-lenses {
  border-top: 1px solid var(--line-strong);
}

.method-lenses > div {
  display: grid;
  grid-template-columns: 54px minmax(190px, 0.75fr) 1fr;
  gap: 24px;
  align-items: baseline;
  padding: 34px 0;
  border-bottom: 1px solid var(--line);
}

.method-lenses span {
  color: var(--signal-bright);
  font-family: var(--font-mono);
  font-size: 0.68rem;
}

.method-lenses strong {
  color: var(--text-strong);
  font-size: 1.02rem;
  font-weight: 520;
}

.method-lenses p {
  color: var(--muted);
  font-size: 0.88rem;
}

.trust-section {
  background: linear-gradient(160deg, transparent 50%, var(--signal-soft));
}

.trust-rules {
  border-top: 1px solid var(--line-strong);
}

.trust-rules > div {
  display: grid;
  grid-template-columns: minmax(240px, 0.7fr) 1fr;
  gap: 30px;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}

.trust-rules span {
  color: var(--text-strong);
  font-size: clamp(1.1rem, 1.6vw, 1.5rem);
}

.trust-rules p {
  color: var(--muted);
}

.exclusion-line {
  max-width: 76ch;
  margin: 54px 0 0 auto;
  padding-left: 28px;
  border-left: 2px solid var(--amber);
  color: var(--muted);
  font-size: 0.9rem;
}

.faq {
  display: grid;
  grid-template-columns: minmax(290px, 0.66fr) minmax(520px, 1.34fr);
  gap: clamp(60px, 10vw, 160px);
  margin-top: clamp(100px, 12vw, 180px);
  padding-top: clamp(90px, 10vw, 150px);
  border-top: 1px solid var(--line-strong);
}

.faq-heading h2 {
  max-width: 8ch;
  font-size: clamp(2.6rem, 4vw, 4.8rem);
}

.faq-list {
  border-top: 1px solid var(--line-strong);
}

.faq-list details {
  border-bottom: 1px solid var(--line);
}

.faq-list summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 76px;
  padding: 20px 0;
  color: var(--text-strong);
  font-size: 1rem;
  cursor: pointer;
  list-style: none;
}

.faq-list summary::-webkit-details-marker { display: none; }

.faq-list summary span {
  flex: 0 0 auto;
  color: var(--signal-bright);
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 300;
  transition: transform 180ms ease;
}

.faq-list details[open] summary span {
  transform: rotate(45deg);
}

.faq-list details p {
  max-width: 68ch;
  padding: 0 52px 26px 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.access-section {
  min-height: 70vh;
  display: flex;
  align-items: center;
  background: var(--surface);
}

.access-glow {
  position: absolute;
  top: 50%;
  left: 73%;
  width: 520px;
  height: 520px;
  pointer-events: none;
  background: radial-gradient(circle, var(--signal-soft), transparent 66%);
  transform: translate(-50%, -50%);
}

.access-layout {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 100px;
  align-items: end;
}

.access-layout h2 {
  max-width: 9ch;
}

.access-layout > div > p:last-child {
  margin-top: 30px;
}

.access-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 22px;
  padding-bottom: 8px;
}

.access-actions span {
  color: var(--quiet);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.site-footer {
  padding-block: 56px;
  background: var(--bg);
}

.footer-layout {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 70px;
  align-items: end;
}

.footer-brand {
  width: 190px;
}

.footer-layout > div > p {
  margin-top: 18px;
  color: var(--quiet);
  font-size: 0.8rem;
}

.footer-layout nav {
  display: grid;
  grid-template-columns: repeat(2, auto);
  gap: 10px 28px;
}

.footer-status {
  color: var(--quiet);
  font-family: var(--font-mono);
  font-size: 0.64rem;
  line-height: 1.8;
  text-align: right;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.dialog {
  width: min(620px, calc(100vw - 32px));
  max-height: calc(100svh - 40px);
  padding: clamp(28px, 5vw, 58px);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-md);
  color: var(--text);
  background: var(--surface);
  box-shadow: 0 40px 120px rgba(0, 0, 0, 0.4);
}

.dialog::backdrop {
  background: rgba(0, 0, 0, 0.64);
  backdrop-filter: blur(10px);
}

.dialog h2 {
  max-width: 12ch;
  font-size: clamp(2rem, 4vw, 3.5rem);
}

.dialog > p:not(.eyebrow, .dialog-note, .form-note) {
  margin-top: 22px;
  color: var(--muted);
}

.dialog dl {
  margin-top: 34px;
  border-bottom: 1px solid var(--line);
}

.dialog-close {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--muted);
  background: transparent;
  font-size: 1.5rem;
  cursor: pointer;
}

.dialog-note,
.form-note {
  margin-top: 24px;
  color: var(--quiet);
  font-size: 0.72rem;
}

.access-dialog form {
  display: grid;
  gap: 20px;
  margin-top: 30px;
}

.access-dialog label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 0.78rem;
}

.access-dialog input,
.access-dialog textarea {
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  padding: 13px 14px;
  color: var(--text);
  background: var(--bg);
  resize: vertical;
}

.form-success {
  margin-top: 34px;
  padding: 24px;
  border-left: 2px solid var(--signal);
  background: var(--signal-soft);
}

.form-success p {
  margin-top: 8px;
  color: var(--muted);
}

/* Cinematic section plates. The raster plates carry the dimensional scene;
   all product copy, controls, and accessible descriptions remain live HTML. */
.cinematic-plate {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

.cinematic-plate::after {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  content: "";
}

.cinematic-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  filter: brightness(0.58) contrast(1.1) saturate(1.02);
  user-select: none;
}

.proof-section > .shell,
.delivery-section > .shell,
.engine-section > .shell,
.method-section > .shell,
.trust-section > .shell {
  position: relative;
  z-index: 1;
}

.proof-section,
.delivery-section,
.engine-section,
.method-section,
.trust-section {
  background: var(--bg);
}

.proof-section {
  min-height: 1000px;
  padding-block: clamp(92px, 8vw, 128px) 72px;
}

.cinematic-plate-evidence .cinematic-image {
  object-position: center 54%;
}

.cinematic-plate-evidence::after {
  background:
    linear-gradient(180deg, var(--readability-solid) 0%, var(--readability-strong) 24%, transparent 52%, var(--readability-strong) 100%),
    linear-gradient(90deg, var(--readability-strong) 0%, transparent 42%, transparent 64%, var(--readability-strong) 100%);
}

.proof-section .section-intro {
  display: block;
  max-width: 1100px;
  margin-bottom: 52px;
}

.proof-section .section-intro h2 {
  max-width: none;
  font-size: clamp(3rem, 5.1vw, 5.55rem);
}

.proof-section .section-intro > p:last-child {
  max-width: 54ch;
  margin-top: 20px;
}

.proof-section .section-intro,
.delivery-section .delivery-intro,
.engine-section .section-intro,
.method-layout .section-intro,
.trust-section .section-intro {
  position: relative;
  isolation: isolate;
  text-shadow: 0 2px 24px var(--bg), 0 1px 8px var(--bg);
}

.proof-section .section-intro::before,
.delivery-section .delivery-intro::before,
.engine-section .section-intro::before,
.method-layout .section-intro::before,
.trust-section .section-intro::before {
  position: absolute;
  inset: -28px -56px -30px -24px;
  z-index: -1;
  pointer-events: none;
  content: "";
  background: linear-gradient(90deg, var(--readability-strong) 0%, var(--readability-soft) 58%, transparent 100%);
  filter: blur(14px);
}

.proof-section .proof-instrument {
  grid-template-columns: minmax(300px, 0.94fr) minmax(320px, 1.23fr) minmax(270px, 0.82fr);
  min-height: 500px;
}

.proof-section .proof-instrument::before {
  display: none;
}

.proof-section .transcript-panel,
.proof-section .criterion-panel {
  min-height: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
  backdrop-filter: none;
  text-shadow: 0 1px 12px var(--bg);
  transform: none;
}

.proof-section .transcript-panel {
  align-self: center;
  padding: 26px 38px 26px 22px;
}

.proof-section .criterion-panel {
  align-self: center;
  padding: 28px 18px 28px 34px;
}

.proof-section .transcript-panel blockquote {
  padding-inline: 0;
  border: 0;
  background: transparent;
}

.proof-section .proof-connector {
  opacity: 0;
}

.proof-section .proof-actions {
  margin-top: -66px;
  padding-left: 73%;
}

.delivery-section {
  min-height: 980px;
  padding-block: clamp(92px, 8vw, 126px) 54px;
}

.cinematic-plate-delivery .cinematic-image {
  object-position: center bottom;
}

.cinematic-plate-delivery::after {
  background:
    linear-gradient(180deg, var(--readability-solid) 0%, var(--readability-strong) 25%, transparent 58%),
    linear-gradient(90deg, var(--readability-strong) 0%, transparent 46%);
}

.delivery-section .delivery-intro {
  display: block;
  max-width: 720px;
  margin-bottom: 0;
}

.delivery-section .delivery-intro h2 {
  max-width: 12ch;
  font-size: clamp(3rem, 4.7vw, 5.3rem);
}

.delivery-section .delivery-intro > p:last-child {
  max-width: 55ch;
  margin-top: 22px;
}

.delivery-section .delivery-instrument {
  grid-template-columns: 0.82fr 1.16fr 1.62fr 1.16fr 0.84fr;
  min-height: 610px;
  margin-top: -124px;
  padding: 138px 8px 18px;
  border: 0;
}

.delivery-section .delivery-instrument::before {
  display: none;
}

.delivery-section .objective-node,
.delivery-section .delivery-spine,
.delivery-section .reasoning-shape,
.delivery-section .alignment-findings,
.delivery-section .human-gate {
  border: 0;
  background: transparent;
  box-shadow: none;
  backdrop-filter: none;
}

.delivery-section .objective-node,
.delivery-section .human-gate {
  min-height: 150px;
}

.delivery-section .reasoning-shape {
  min-height: 440px;
}

.delivery-section .reasoning-shape svg {
  visibility: hidden;
}

.delivery-section .delivery-spine {
  background: transparent;
}

.delivery-section .delivery-instrument figcaption {
  align-self: end;
  border-top: 1px solid var(--line);
}

.engine-section {
  min-height: 900px;
  padding-block: clamp(100px, 9vw, 142px) 66px;
}

.cinematic-plate-engine .cinematic-image {
  object-position: center bottom;
}

.cinematic-plate-engine::after {
  background:
    linear-gradient(180deg, var(--readability-strong) 0%, transparent 46%),
    linear-gradient(90deg, var(--readability-strong) 0%, transparent 42%);
}

.engine-section > .shell {
  min-height: 690px;
}

.engine-section .section-intro {
  display: block;
  width: min(34%, 470px);
  margin-bottom: 0;
}

.engine-section .section-intro h2 {
  max-width: 9ch;
}

.engine-section .section-intro > p:last-child {
  max-width: 31ch;
  margin-top: 26px;
}

.engine-section .engine-rail {
  position: absolute;
  top: 24px;
  right: var(--page-pad);
  left: 36%;
  border: 0;
  background: transparent;
  box-shadow: none;
  backdrop-filter: none;
}

.engine-section .engine-rail::before,
.engine-section .engine-rail li::before {
  display: none;
}

.engine-section .engine-rail li {
  min-height: 190px;
  padding: 0 clamp(14px, 1.8vw, 30px);
  border-right-color: var(--line);
}

.engine-section .rail-index {
  margin-bottom: 34px;
}

.engine-section .engine-rail strong {
  font-family: var(--font-mono);
  font-size: clamp(0.72rem, 0.82vw, 0.84rem);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.engine-section .engine-rail p {
  font-size: 0.76rem;
}

.engine-section .engine-rule {
  position: absolute;
  right: var(--page-pad);
  bottom: 18px;
  left: var(--page-pad);
  margin-top: 0;
}

.method-section {
  min-height: 980px;
  padding-block: clamp(100px, 9vw, 144px) 70px;
}

.cinematic-plate-method .cinematic-image {
  object-position: center bottom;
}

.cinematic-plate-method::after {
  background:
    linear-gradient(180deg, var(--readability-strong) 0%, transparent 48%),
    linear-gradient(90deg, var(--readability-strong) 0%, transparent 44%);
}

.method-layout {
  display: block;
  min-height: 750px;
}

.method-layout .section-intro {
  position: static;
  display: block;
  width: min(36%, 500px);
  margin-bottom: 0;
}

.method-layout .section-intro h2 {
  max-width: none;
  font-size: clamp(3rem, 4.35vw, 5rem);
}

.method-layout .method-lenses {
  position: absolute;
  top: 390px;
  left: var(--page-pad);
  width: min(420px, 31vw);
  border-top-color: transparent;
  background: transparent;
  box-shadow: none;
  backdrop-filter: none;
}

.method-layout .method-lenses > div {
  grid-template-columns: 38px 1fr;
  gap: 12px;
  padding: 15px 0;
}

.method-layout .method-lenses p {
  grid-column: 2;
  font-size: 0.76rem;
}

.trust-section {
  padding-block: clamp(100px, 9vw, 144px) clamp(110px, 10vw, 160px);
}

.cinematic-plate-trust {
  height: 900px;
  bottom: auto;
}

.cinematic-plate-trust .cinematic-image {
  object-position: center top;
}

.cinematic-plate-trust::after {
  background:
    linear-gradient(180deg, var(--readability-strong) 0%, transparent 48%),
    linear-gradient(90deg, var(--readability-strong) 0%, transparent 44%);
}

.trust-section .section-intro {
  display: block;
  width: min(36%, 510px);
  margin-bottom: 0;
}

.trust-section .section-intro h2 {
  max-width: 8ch;
}

.trust-section .section-intro > p:last-child {
  margin-top: 26px;
}

.trust-section .trust-rules {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin-top: 390px;
  border-top: 0;
  border-bottom: 0;
  background: transparent;
  box-shadow: none;
  backdrop-filter: none;
}

.trust-section .trust-rules > div {
  display: block;
  padding: 28px clamp(18px, 3vw, 46px);
  border: 0;
  border-right: 1px solid var(--line);
}

.trust-section .trust-rules > div:first-child {
  padding-left: 0;
}

.trust-section .trust-rules > div:last-child {
  padding-right: 0;
  border-right: 0;
}

.trust-section .trust-rules p {
  margin-top: 8px;
}

@media (max-width: 1180px) {
  .hero-layout {
    grid-template-columns: minmax(330px, 0.82fr) minmax(530px, 1.18fr);
  }

  .section-intro,
  .delivery-intro {
    grid-template-columns: 0.45fr 1.08fr 0.7fr;
  }

  .delivery-instrument {
    grid-template-columns: 0.9fr 1fr 1.45fr 1fr 0.9fr;
    gap: 14px;
    padding-inline: 0;
  }

  .objective-node,
  .human-gate {
    padding: 18px 14px;
  }

  .reasoning-shape {
    min-height: 420px;
    padding: 20px 12px;
  }
}

@media (max-width: 960px) {
  :root { --header-height: 74px; }

  .primary-nav,
  .header-cta {
    display: none;
  }

  .header-actions {
    margin-left: auto;
  }

  .processing-toc-inner {
    justify-content: flex-start;
    overflow-x: auto;
    padding-block: 15px;
    scrollbar-width: thin;
  }

  .processing-toc a { flex: 0 0 auto; }

  .menu-button {
    display: grid;
    width: 44px;
    height: 44px;
    place-content: center;
    gap: 7px;
    border: 1px solid var(--line);
    background: var(--surface-soft);
    cursor: pointer;
  }

  .menu-button > span:not(.sr-only) {
    width: 18px;
    height: 1px;
    background: var(--text);
    transition: transform 180ms ease;
  }

  .menu-button[aria-expanded="true"] > span:nth-child(2) {
    transform: translateY(4px) rotate(45deg);
  }

  .menu-button[aria-expanded="true"] > span:nth-child(3) {
    transform: translateY(-4px) rotate(-45deg);
  }

  .mobile-menu {
    position: absolute;
    top: var(--header-height);
    right: var(--page-pad);
    display: grid;
    width: min(310px, calc(100vw - 2 * var(--page-pad)));
    padding: 16px 22px;
    border: 1px solid var(--line-strong);
    background: var(--surface);
    box-shadow: 0 28px 80px var(--shadow);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-12px);
    transition: opacity 180ms ease, transform 180ms ease;
  }

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

  .mobile-menu a {
    min-height: 50px;
    padding: 13px 0;
    border-bottom: 1px solid var(--line);
  }

  .mobile-menu a:last-child { border-bottom: 0; }

  .hero-layout {
    grid-template-columns: 1fr;
    padding-top: calc(var(--header-height) + 92px);
  }

  .hero-copy {
    max-width: 740px;
    padding-bottom: 16px;
  }

  h1 { max-width: 11ch; }

  .hero-instrument {
    position: relative;
    inset: auto;
    width: 145%;
    height: auto;
    margin: -42px 0 -38px -42%;
  }

  .hero-plate {
    height: auto;
    object-fit: contain;
  }

  .hero-annotations { font-size: 0.58rem; }

  .section-intro,
  .delivery-intro {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .section-intro .eyebrow { margin: 0; }
  .section-intro h2 { max-width: 12ch; }

  .proof-instrument {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .transcript-panel,
  .criterion-panel {
    transform: none;
  }

  .criterion-panel {
    width: 78%;
    margin: -20px 0 0 auto;
  }

  .proof-connector {
    width: 190px;
    height: 110px;
    margin: -14px 0 -20px 48%;
    transform: rotate(84deg);
  }

  .delivery-instrument {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 40px 0;
  }

  .delivery-instrument::before {
    top: 5%;
    right: auto;
    bottom: 13%;
    left: 50%;
    width: 1px;
    height: auto;
    background: linear-gradient(var(--signal), var(--line-strong), var(--amber));
  }

  .objective-node,
  .delivery-spine,
  .reasoning-shape,
  .alignment-findings,
  .human-gate {
    width: min(620px, 90%);
    margin-inline: auto;
  }

  .delivery-spine {
    grid-template-columns: 1fr 12px 1fr 12px 1fr 12px 1fr;
  }

  .delivery-spine i:nth-of-type(2),
  .delivery-spine i:nth-of-type(3) {
    display: block;
  }

  .reasoning-shape { min-height: 0; }

  .delivery-instrument figcaption {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

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

  .engine-rail li:nth-child(2) { border-right: 0; }
  .engine-rail li:nth-child(-n + 2) { border-bottom: 1px solid var(--line); }

  .method-layout,
  .faq,
  .access-layout {
    grid-template-columns: 1fr;
  }

  .method-layout .section-intro {
    position: static;
  }

  .faq { gap: 70px; }

  .access-layout { gap: 60px; }

  .footer-layout {
    grid-template-columns: 1fr 1fr;
  }

  .footer-status {
    grid-column: 1 / -1;
    text-align: left;
  }
}

@media (max-width: 640px) {
  :root {
    --page-pad: 20px;
    --header-height: 68px;
  }

  body::before { background-size: 44px 44px; }

  .brand { width: 164px; }
  .header-actions { gap: 10px; }

  .hero-layout {
    min-height: auto;
    padding-top: calc(var(--header-height) + 72px);
    padding-bottom: 90px;
  }

  .hero-copy { padding-top: 10px; }

  h1 {
    max-width: 10ch;
    font-size: clamp(3.2rem, 15vw, 4.7rem);
  }

  h2 {
    max-width: 11ch;
    font-size: clamp(2.45rem, 11.5vw, 3.7rem);
  }

  .hero-lede { font-size: 1rem; }

  .actions {
    align-items: flex-start;
    flex-direction: column;
    gap: 18px;
    margin-top: 34px;
  }

  .hero-instrument {
    width: 190%;
    margin: -6px 0 -32px -70%;
  }

  .hero-annotations { font-size: 0.48rem; }
  .annotation-role,
  .annotation-interview,
  .annotation-review,
  .annotation-evidence {
    display: none;
  }

  .hero-index {
    display: none;
  }

  .section {
    padding-block: 96px;
  }

  .section-intro {
    margin-bottom: 60px;
  }

  .transcript-panel,
  .criterion-panel {
    min-height: 0;
  }

  .criterion-panel {
    width: 93%;
  }

  .instrument-bar {
    align-items: flex-start;
    flex-direction: column;
    gap: 5px;
  }

  .source-meta {
    flex-direction: column;
    gap: 6px;
  }

  .proof-connector {
    margin-left: 39%;
  }

  .proof-actions {
    align-items: flex-start;
    flex-direction: column;
  }

  .proof-actions span { line-height: 1.6; }

  .delivery-spine {
    grid-template-columns: 1fr;
  }

  .delivery-spine i,
  .delivery-spine i:nth-of-type(2),
  .delivery-spine i:nth-of-type(3) {
    display: block;
    width: 1px;
    height: 10px;
    margin-inline: auto;
  }

  .reasoning-shape {
    width: 100%;
    padding: 22px 8px;
  }

  .shape-labels text { font-size: 13px; }

  .engine-rail {
    grid-template-columns: 1fr;
  }

  .engine-rail li,
  .engine-rail li:nth-child(2) {
    min-height: 0;
    padding: 38px 0 38px 34px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .engine-rail li::before { left: 0; }
  .rail-index { margin-bottom: 26px; }

  .engine-rule {
    grid-template-columns: auto minmax(24px, 1fr) auto;
    gap: 14px;
  }

  .engine-rule span,
  .engine-rule strong {
    font-size: 1.55rem;
  }

  .method-lenses > div {
    grid-template-columns: 38px 1fr;
    gap: 12px;
  }

  .method-lenses p {
    grid-column: 2;
  }

  .trust-rules > div {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .exclusion-line { margin-top: 44px; }

  .faq {
    margin-top: 90px;
    padding-top: 82px;
  }

  .faq-list summary {
    font-size: 0.92rem;
  }

  .faq-list details p {
    padding-right: 0;
  }

  .access-section { min-height: auto; }

  .footer-layout {
    grid-template-columns: 1fr;
    gap: 42px;
  }

  .footer-layout nav {
    grid-template-columns: 1fr 1fr;
  }

  .footer-status { grid-column: auto; }
}

@media (max-width: 1180px) {
  .proof-section .proof-instrument {
    grid-template-columns: minmax(280px, 0.94fr) minmax(250px, 1.04fr) minmax(250px, 0.82fr);
  }

  .proof-section .transcript-panel {
    padding-inline: 14px 24px;
  }

  .proof-section .criterion-panel {
    padding-inline: 24px 10px;
  }

  .delivery-section .delivery-instrument {
    grid-template-columns: 0.88fr 0.95fr 1.42fr 1fr 0.88fr;
    gap: 8px;
    padding-inline: 0;
  }

  .engine-section .engine-rail {
    left: 34%;
  }

  .engine-section .engine-rail li {
    padding-inline: 14px;
  }
}

@media (max-width: 960px) {
  .cinematic-plate {
    height: 720px;
    bottom: auto;
  }

  .cinematic-image {
    object-position: center top !important;
  }

  .hero-copy::before {
    inset: -40px -42px -36px calc(-1 * var(--page-pad));
  }

  .cinematic-plate::after {
    background:
      linear-gradient(180deg, var(--readability-solid) 0%, var(--readability-strong) 42%, transparent 78%),
      linear-gradient(90deg, var(--readability-soft) 0%, transparent 70%);
  }

  .proof-section,
  .delivery-section,
  .engine-section,
  .method-section,
  .trust-section {
    min-height: auto;
    padding-block: 96px;
  }

  .proof-section .section-intro,
  .delivery-section .delivery-intro,
  .engine-section .section-intro,
  .method-layout .section-intro,
  .trust-section .section-intro {
    width: 100%;
    max-width: 680px;
  }

  .proof-section .section-intro h2,
  .delivery-section .delivery-intro h2,
  .engine-section .section-intro h2,
  .method-layout .section-intro h2,
  .trust-section .section-intro h2 {
    max-width: 11ch;
  }

  .delivery-section .delivery-intro > p:last-child {
    color: var(--text);
    text-shadow: 0 2px 18px var(--bg), 0 2px 32px var(--bg);
  }

  .proof-section .proof-instrument {
    display: block;
    min-height: 490px;
  }

  .proof-section .transcript-panel,
  .proof-section .criterion-panel,
  .proof-section .proof-connector,
  .delivery-section .objective-node,
  .delivery-section .delivery-spine,
  .delivery-section .reasoning-shape,
  .delivery-section .alignment-findings,
  .delivery-section .human-gate {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    min-height: 0 !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    clip-path: inset(50%) !important;
    white-space: nowrap !important;
    border: 0 !important;
  }

  .proof-section .proof-actions {
    margin-top: -72px;
    padding-left: 0;
  }

  .delivery-section .delivery-instrument {
    display: block;
    min-height: 500px;
    margin-top: 8px;
    padding: 0;
  }

  .delivery-section .delivery-instrument figcaption {
    position: absolute;
    right: 0;
    bottom: 0;
    left: 0;
    align-items: flex-start;
    padding-top: 20px;
    text-align: left;
  }

  .engine-section > .shell {
    min-height: 0;
  }

  .engine-section .engine-rail {
    position: static;
    margin-top: 350px;
    border-top: 1px solid var(--line-strong);
    background: color-mix(in srgb, var(--surface) 72%, transparent);
    backdrop-filter: blur(14px);
  }

  .engine-section .engine-rail li {
    min-height: 190px;
    padding: 34px;
  }

  .engine-section .engine-rule {
    position: static;
    margin-top: 48px;
  }

  .method-layout {
    min-height: 0;
  }

  .method-layout .method-lenses {
    position: static;
    width: min(100%, 620px);
    margin-top: 390px;
    background: color-mix(in srgb, var(--surface) 68%, transparent);
    backdrop-filter: blur(14px);
  }

  .trust-section .trust-rules {
    margin-top: 360px;
  }
}

@media (max-width: 640px) {
  .cinematic-plate {
    height: 610px;
  }

  .proof-section,
  .delivery-section,
  .engine-section,
  .method-section,
  .trust-section {
    padding-block: 82px;
  }

  .proof-section .section-intro h2,
  .delivery-section .delivery-intro h2,
  .engine-section .section-intro h2,
  .method-layout .section-intro h2,
  .trust-section .section-intro h2 {
    font-size: clamp(2.45rem, 11.5vw, 3.7rem);
  }

  .proof-section .proof-instrument {
    min-height: 410px;
  }

  .proof-section .proof-actions {
    margin-top: -58px;
  }

  .delivery-section .delivery-instrument {
    min-height: 410px;
  }

  .delivery-section .delivery-instrument figcaption {
    gap: 12px;
  }

  .engine-section .engine-rail {
    grid-template-columns: repeat(2, 1fr);
    margin-top: 300px;
  }

  .engine-section .engine-rail li,
  .engine-section .engine-rail li:nth-child(2) {
    min-height: 0;
    padding: 28px 24px;
  }

  .engine-section .engine-rail p {
    margin-top: 10px;
    font-size: 0.7rem;
  }

  .method-layout .method-lenses {
    margin-top: 325px;
  }

  .trust-section .trust-rules {
    grid-template-columns: 1fr;
    margin-top: 310px;
  }

  .trust-section .trust-rules > div,
  .trust-section .trust-rules > div:first-child,
  .trust-section .trust-rules > div:last-child {
    padding: 22px 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .trust-section .trust-rules > div:last-child {
    border-bottom: 0;
  }
}

/* Dark-only processing story */
.processing-section {
  min-height: auto;
  padding-block: clamp(110px, 12vw, 180px);
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(11, 16, 23, 0.7), rgba(5, 7, 10, 0.96)),
    radial-gradient(circle at 74% 26%, rgba(36, 107, 253, 0.12), transparent 34%);
}

.processing-layout {
  display: grid;
  grid-template-columns: minmax(300px, 0.72fr) minmax(560px, 1.28fr);
  column-gap: clamp(56px, 8vw, 132px);
  row-gap: 80px;
  align-items: start;
}

.processing-section .section-intro {
  max-width: 560px;
}

.processing-section .section-intro h2 {
  max-width: 8ch;
}

.processing-section .button-link {
  display: inline-flex;
  margin-top: 28px;
}

.processing-rail {
  border-top: 1px solid var(--line-strong);
}

.processing-rail > div {
  display: grid;
  grid-template-columns: minmax(112px, 0.46fr) minmax(220px, 1fr) minmax(240px, 1.18fr);
  gap: 28px;
  align-items: start;
  padding: 30px 0;
  border-bottom: 1px solid var(--line);
}

.processing-rail span,
.processing-kicker,
.viewer-spec figcaption,
.page-section-index,
.layer-rail span,
.evidence-ledger span,
.reasoning-index span,
.separation-ledger dt,
.proof-ladder span {
  color: var(--signal-bright);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  line-height: 1.45;
  text-transform: uppercase;
}

.processing-rail strong {
  color: var(--text-strong);
  font-size: 1.03rem;
  font-weight: 520;
  line-height: 1.42;
}

.processing-rail p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.72;
}

.processing-boundary {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: minmax(300px, 0.72fr) minmax(560px, 1.28fr);
  column-gap: clamp(56px, 8vw, 132px);
  margin: 0;
  padding-top: 32px;
  border-top: 1px solid var(--line-strong);
  color: var(--muted);
  line-height: 1.75;
}

.processing-boundary strong {
  color: var(--text-strong);
  font-size: clamp(1.35rem, 2vw, 2rem);
  font-weight: 480;
  line-height: 1.28;
}

/* Deep processing review */
.processing-page {
  background:
    radial-gradient(circle at 78% 5%, rgba(90, 116, 143, 0.12), transparent 30rem),
    var(--bg);
}

.processing-main {
  overflow: hidden;
}

.processing-hero {
  padding: calc(var(--header-height) + 86px) 0 108px;
  border-bottom: 1px solid var(--line);
}

.processing-hero-grid {
  display: grid;
  grid-template-columns: minmax(320px, 0.76fr) minmax(500px, 1.24fr);
  gap: clamp(52px, 8vw, 126px);
  align-items: end;
}

.processing-kicker {
  margin: 0 0 24px;
}

.processing-hero h1 {
  max-width: 8ch;
  margin: 0;
  font-size: clamp(4rem, 8vw, 8.4rem);
  line-height: 0.88;
  letter-spacing: -0.075em;
}

.processing-hero-summary {
  max-width: 720px;
  margin: 0;
  color: var(--muted);
  font-size: clamp(1.15rem, 1.8vw, 1.7rem);
  line-height: 1.55;
}

.processing-hero-summary strong {
  color: var(--text-strong);
  font-weight: 520;
}

.processing-principles {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin: 70px 0 0;
  padding: 0;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line);
  list-style: none;
}

.processing-principles li {
  min-height: 126px;
  padding: 26px 32px 28px 0;
  color: var(--muted);
  line-height: 1.65;
}

.processing-principles li + li {
  padding-left: 32px;
  border-left: 1px solid var(--line);
}

.viewer-band {
  padding: 48px 0 74px;
  border-bottom: 1px solid var(--line);
}

.system-demo {
  margin: 0;
  padding: 0;
  background: transparent;
}

.system-demo-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 32px;
  padding: 0 0 24px;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: calc(var(--header-height) + 34px);
}

.system-demo-heading h2 { margin: 8px 0 10px; font-size: clamp(2.1rem, 3.8vw, 4.35rem); line-height: 1; }
.system-demo-heading p:last-child { max-width: 620px; margin: 0; color: var(--muted); font-size: 1.05rem; }
.system-demo-control { flex: 0 0 auto; padding: 10px 0; border: 0; border-bottom: 1px solid #6f9cff; background: transparent; color: #dce9ff; cursor: pointer; }
.system-demo-label { color: #87aef7; font: 0.72rem/1.4 var(--mono); letter-spacing: 0.11em; text-transform: uppercase; }
.evidence-system { position: relative; min-height: 520px; margin-top: 8px; overflow: hidden; background: radial-gradient(circle at 52% 48%, rgba(26, 91, 174, .14), transparent 37%); }
.evidence-source, .evidence-result { position: absolute; z-index: 3; width: min(31%, 330px); min-height: 330px; padding: 25px; border: 1px solid rgba(133, 175, 224, .48); background: rgba(5, 12, 19, .88); box-shadow: inset 0 0 44px rgba(62, 125, 207, .06), 0 26px 70px rgba(0, 0, 0, .22); backdrop-filter: blur(12px); }
.evidence-source { top: 46px; left: 0; }
.evidence-result { top: 62px; right: 0; }
.evidence-source h3, .evidence-result h3 { margin: 14px 0 20px; color: #f0f5fa; font-size: clamp(1.15rem, 1.55vw, 1.52rem); font-weight: 470; line-height: 1.3; }
.evidence-source blockquote { margin: 0; padding: 16px 17px 16px 20px; border-left: 2px solid #2679ff; background: rgba(27, 86, 194, .16); color: #dfeaff; font-size: .94rem; line-height: 1.55; }
.evidence-note { margin: 18px 0 0; color: var(--quiet); font: .72rem/1.4 var(--mono); text-transform: uppercase; }
.evidence-field { position: absolute; inset: 0 13% 0 14%; z-index: 1; min-height: 500px; }
.evidence-field::after { position: absolute; right: 8%; bottom: 58px; left: 8%; height: 110px; background: linear-gradient(180deg, rgba(24, 61, 100, .08), rgba(2, 5, 8, .38)); border: 1px solid rgba(112, 166, 222, .11); transform: perspective(520px) rotateX(62deg); transform-origin: bottom; content: ""; }
.evidence-field svg { position: relative; z-index: 2; display: block; width: 100%; height: 500px; overflow: visible; }
.evidence-planes path { fill: url(#field-plane); stroke: #83b8ef; stroke-opacity: .35; }
.evidence-lines path { fill: none; stroke: #9fc8ef; stroke-opacity: .23; }
.evidence-signal { fill: none; stroke: #247dff; stroke-width: 3; stroke-dasharray: none; }
.evidence-nodes circle { fill: #8dc1ff; stroke: #2279ff; stroke-width: 2; }
.field-label { position: absolute; z-index: 4; padding: 7px 10px; background: rgba(5, 10, 16, .88); color: #d6e2ef; font: .72rem/1.3 var(--mono); letter-spacing: .04em; white-space: nowrap; }
.field-label-one { top: 13%; left: 24%; }.field-label-two { top: 47%; left: 43%; }.field-label-three { bottom: 9%; left: 43%; }
.evidence-result dl { margin: 0 0 26px; }
.evidence-result dl div { display: flex; justify-content: space-between; gap: 16px; padding: 10px 0; border-bottom: 1px solid var(--line); }
.evidence-result dt { color: var(--quiet); }.evidence-result dd { margin: 0; color: #e1ebf5; text-align: right; }
.bounded-finding { display: flex; gap: 11px; margin: 0; color: #f0c36d; line-height: 1.45; }
.bounded-finding span { flex: 0 0 auto; width: 9px; height: 9px; margin-top: 6px; border-radius: 50%; background: #ffc25e; box-shadow: 0 0 18px rgba(255, 180, 70, .8); }
.system-demo.is-paused .evidence-signal, .system-demo.is-paused .evidence-nodes circle { animation-play-state: paused; }
.system-demo figcaption {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  margin-top: 0;
  padding-top: 25px;
  border-top: 1px solid var(--line);
  color: var(--quiet);
}
.system-demo figcaption strong { color: #edf4fb; font-weight: 500; }


.processing-page-section {
  padding: clamp(100px, 11vw, 168px) 0;
  border-bottom: 1px solid var(--line);
}

.page-section-heading {
  display: grid;
  grid-template-columns: minmax(150px, 0.32fr) minmax(420px, 1fr) minmax(300px, 0.72fr);
  gap: 40px;
  align-items: start;
  margin-bottom: 72px;
}

.page-section-heading h2 {
  max-width: 12ch;
  margin: 0;
  font-size: clamp(3rem, 5.2vw, 6rem);
  line-height: 0.98;
}

.page-section-heading > p:last-child {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

.layer-rail {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line);
  list-style: none;
}

.layer-rail li {
  min-height: 290px;
  padding: 30px 28px 34px;
}

.layer-rail li:first-child {
  padding-left: 0;
}

.layer-rail li + li {
  border-left: 1px solid var(--line);
}

.layer-rail strong {
  display: block;
  margin: 52px 0 18px;
  color: var(--text-strong);
  font-size: 1.28rem;
  font-weight: 520;
}

.layer-rail p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.hard-boundary {
  display: grid;
  grid-template-columns: minmax(220px, 0.38fr) 1fr;
  gap: 52px;
  margin-top: 52px;
  padding-top: 28px;
  border-top: 1px solid var(--line-strong);
}

.hard-boundary span {
  color: var(--amber);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hard-boundary p {
  max-width: 1000px;
  margin: 0;
  color: var(--text-strong);
  font-size: clamp(1.45rem, 2.4vw, 2.5rem);
  line-height: 1.34;
}

.evidence-ledger {
  border-top: 1px solid var(--line-strong);
}

.evidence-ledger article {
  display: grid;
  grid-template-columns: minmax(130px, 0.28fr) minmax(250px, 0.68fr) minmax(340px, 1.04fr);
  gap: 40px;
  padding: 30px 0 34px;
  border-bottom: 1px solid var(--line);
}

.evidence-ledger h3 {
  margin: 0;
  color: var(--text-strong);
  font-size: 1.18rem;
  font-weight: 520;
}

.evidence-ledger p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.reasoning-index {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-strong);
  list-style: none;
}

.reasoning-index li {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 24px;
  min-height: 138px;
  padding: 28px 40px 30px 0;
  border-bottom: 1px solid var(--line);
}

.reasoning-index li:nth-child(even) {
  padding-left: 40px;
  border-left: 1px solid var(--line);
}

.reasoning-index strong {
  display: block;
  margin-bottom: 8px;
  color: var(--text-strong);
  font-size: 1rem;
  font-weight: 520;
}

.reasoning-index p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.65;
}

.definition-band {
  display: grid;
  grid-template-columns: minmax(220px, 0.38fr) 1fr;
  gap: 52px;
  margin-top: 64px;
  padding-top: 28px;
  border-top: 1px solid var(--line-strong);
}

.definition-band strong {
  color: var(--signal-bright);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.definition-band p {
  max-width: 970px;
  margin: 0;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.8;
}

.definition-band b {
  color: var(--text-strong);
  font-weight: 520;
}

.separation-ledger {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 0;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line);
}

.separation-ledger > div {
  min-height: 320px;
  padding: 32px 34px;
}

.separation-ledger > div:first-child {
  padding-left: 0;
}

.separation-ledger > div + div {
  border-left: 1px solid var(--line);
}

.separation-ledger dd {
  margin: 50px 0 0;
  color: var(--muted);
  line-height: 1.72;
}

.separation-ledger dd strong {
  display: block;
  margin-bottom: 16px;
  color: var(--text-strong);
  font-size: 1.25rem;
  font-weight: 520;
}

.boundary-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(52px, 8vw, 130px);
}

.boundary-columns h3 {
  margin: 0 0 28px;
  color: var(--text-strong);
  font-size: 1.35rem;
  font-weight: 520;
}

.boundary-columns ul {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-strong);
  list-style: none;
}

.boundary-columns li {
  margin: 0;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
}

.boundary-columns .cannot li::before {
  content: "—";
  margin-right: 14px;
  color: var(--amber);
}

.boundary-columns .can li::before {
  content: "+";
  margin-right: 14px;
  color: var(--signal-bright);
}

.proof-ladder {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-strong);
  list-style: none;
  counter-reset: proof;
}

.proof-ladder li {
  counter-increment: proof;
  display: grid;
  grid-template-columns: 80px minmax(240px, 0.52fr) 1fr;
  gap: 34px;
  padding: 25px 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
}

.proof-ladder li::before {
  content: "0" counter(proof);
  color: var(--signal-bright);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
}

.proof-ladder strong {
  color: var(--text-strong);
  font-weight: 520;
}

.processing-release-note {
  margin-top: 52px;
  padding-left: 22px;
  border-left: 2px solid var(--amber);
  color: var(--muted);
  line-height: 1.75;
}

@media (max-width: 960px) {
  .processing-layout,
  .processing-hero-grid,
  .page-section-heading {
    grid-template-columns: 1fr;
  }

  .processing-boundary {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .processing-rail > div,
  .evidence-ledger article {
    grid-template-columns: minmax(110px, 0.34fr) 1fr;
  }

  .processing-rail p,
  .evidence-ledger p {
    grid-column: 2;
  }

  .processing-principles,
  .layer-rail,
  .separation-ledger {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .processing-principles li:nth-child(3),
  .layer-rail li:nth-child(3),
  .separation-ledger > div:nth-child(3) {
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .layer-rail li:nth-child(3) {
    padding-left: 0;
  }

  .hard-boundary,
  .definition-band {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .evidence-source, .evidence-result { width: 29%; min-height: 360px; padding: 24px 20px; }
  .evidence-field { inset-inline: 12%; }
  .evidence-source h3, .evidence-result h3 { font-size: 1.22rem; }
  .evidence-source blockquote { padding: 16px; font-size: .92rem; }
  .field-label { font-size: .65rem; }
}

@media (max-width: 640px) {
  .processing-section {
    padding-block: 82px;
  }

  .processing-layout {
    row-gap: 52px;
  }

  .processing-section .section-intro h2 {
    font-size: clamp(2.8rem, 14vw, 4.2rem);
  }

  .processing-rail > div,
  .evidence-ledger article {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 24px 0;
  }

  .processing-rail p,
  .evidence-ledger p {
    grid-column: 1;
  }

  .processing-hero {
    padding-top: calc(var(--header-height) + 62px);
  }

  .processing-hero h1 {
    font-size: clamp(3.7rem, 18vw, 5.6rem);
  }

  .processing-principles,
  .layer-rail,
  .reasoning-index,
  .separation-ledger,
  .boundary-columns {
    grid-template-columns: 1fr;
  }

  .processing-principles li,
  .processing-principles li + li,
  .layer-rail li,
  .layer-rail li:first-child,
  .separation-ledger > div,
  .separation-ledger > div:first-child {
    min-height: auto;
    padding: 26px 0;
    border-top: 0;
    border-left: 0;
    border-bottom: 1px solid var(--line);
  }

  .layer-rail strong,
  .separation-ledger dd {
    margin-top: 24px;
  }

  .reasoning-index li,
  .reasoning-index li:nth-child(even) {
    padding: 24px 0;
    border-left: 0;
  }

  .system-demo-heading { align-items: flex-start; flex-direction: column; }
  .evidence-system { display: grid; min-height: 0; overflow: visible; }
  .evidence-source, .evidence-result { position: relative; top: auto; right: auto; left: auto; width: 100%; min-height: 0; padding: 26px 22px; }
  .evidence-source { grid-row: 1; }
  .evidence-field { position: relative; inset: auto; grid-row: 2; min-height: 260px; margin: -10px 0; }
  .evidence-result { grid-row: 3; }
  .evidence-field svg { height: 280px; }
  .field-label { font-size: .62rem; }
  .system-demo figcaption {
    flex-direction: column;
    gap: 8px;
  }

  .proof-ladder li {
    grid-template-columns: 50px 1fr;
    gap: 14px;
  }

  .proof-ladder li span {
    grid-column: 2;
  }
}

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

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

  .signal-path { stroke-dashoffset: 0; }
}

/* Approved section artwork is displayed unchanged. The crop windows only remove
   repeated header/next-section previews and the rejected logo in the old footer. */
.approved-section {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  margin: 0;
  padding: 0;
  background: #080b0d;
}

.approved-art {
  position: relative;
  overflow: hidden;
  width: 100%;
}

.approved-frame { position: relative; }
.approved-mobile-link, .approved-mobile-actions { display: none; }

.approved-art img {
  position: absolute;
  top: 0;
  left: 0;
  display: block;
  width: 100%;
  max-width: none;
  height: auto;
  margin: 0;
  filter: none;
  opacity: 1;
  transform: none;
}

.approved-engine .approved-art { aspect-ratio: 1554 / 834; }
.approved-method .approved-art { aspect-ratio: 1553 / 771; }
.approved-method .approved-art img { top: -10.8949416%; }
.approved-trust .approved-art { aspect-ratio: 1516 / 914; }

.approved-copy {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.approved-action {
  position: absolute;
  z-index: 2;
  display: block;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 3px;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  font: inherit;
}

.approved-action > span {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.approved-action:hover {
  box-shadow: inset 0 0 0 1px rgba(155, 193, 255, 0.65);
}

.approved-action:focus-visible {
  outline: 2px solid #9bc1ff;
  outline-offset: 4px;
}

.approved-method-link {
  left: 42.4%;
  top: 92.09%;
  width: 15.3%;
  height: 4.6%;
}

.approved-pilot-actions {
  position: absolute;
  inset: 80.306346% 0 0;
}

.approved-pilot-link {
  left: 61.807388%;
  top: 33.333333%;
  width: 17.480211%;
  height: 33.333333%;
}

.approved-access-link {
  left: 81.002639%;
  top: 33.333333%;
  width: 15.237467%;
  height: 33.333333%;
}

.approved-footer {
  padding: 25px 0 18px;
  border-top: 1px solid #343a3e;
  background: #080b0d;
}

.approved-footer .footer-layout {
  grid-template-columns: 1.1fr 1.25fr 0.9fr;
  align-items: center;
  gap: 30px;
  max-width: none;
  padding-inline: 3.8%;
}

.approved-footer .footer-brand { width: 242px; }
.approved-footer .footer-layout > div > p { margin-top: 12px; font-size: 14px; }
.approved-footer .footer-layout nav { display: flex; justify-content: space-between; gap: 24px; font-size: 14px; }
.footer-text-button { padding: 0; border: 0; background: none; color: inherit; font: inherit; cursor: pointer; }
.approved-footer .footer-status { font-size: 13px; text-transform: none; letter-spacing: 0; }
.approved-resources { max-width: none; margin-top: 25px; padding-inline: 3.8%; color: var(--muted); font-size: 13px; }
.approved-resources > summary { width: fit-content; cursor: pointer; }
.approved-resources[open] > summary { margin-bottom: 28px; }
.approved-resources .resource-links { display: flex; flex-wrap: wrap; gap: 12px 28px; }
.approved-resources .faq { margin-top: 50px; }

/* Buyer-facing landing page hierarchy. Keep proof early and secondary material compact. */
.motion-page .approved-footer { display: flex; flex-direction: column; padding-top: 0; }
.motion-page .approved-footer .approved-resources { order: -1; width: 100%; margin: 0; padding-top: clamp(56px, 6vw, 88px); padding-bottom: clamp(56px, 6vw, 88px); border-bottom: 1px solid var(--line); }
.motion-page .approved-resources > summary { display: none; }
.motion-page .approved-resources .faq { max-width: 1480px; margin: 0 auto; }
.motion-page .approved-resources .resource-links { max-width: 1480px; margin: 44px auto 0; padding-top: 28px; border-top: 1px solid var(--line); }
.motion-page .approved-footer .footer-layout { width: 100%; padding-top: 30px; padding-bottom: 16px; }
.motion-page .approved-footer .footer-layout nav { display: grid; grid-template-columns: repeat(4, max-content); justify-content: start; gap: 12px 30px; }
.motion-page .approved-footer .footer-layout nav a,
.motion-page .approved-footer .footer-text-button { white-space: nowrap; }

@media (min-width: 801px) and (max-width: 1100px) {
  .approved-footer .footer-layout { grid-template-columns: 1fr 1fr; }
  .approved-footer .footer-layout nav { flex-wrap: wrap; }
  .approved-footer .footer-status { grid-column: 2; }
}

@media (max-width: 800px) {
  .approved-copy {
    position: static;
    width: auto;
    height: auto;
    padding: 26px var(--page-pad) 36px;
    overflow: visible;
    clip-path: none;
    white-space: normal;
  }

  .approved-copy .section-intro { max-width: none; margin: 0; padding: 0; }
  .approved-copy h2 { max-width: none; font-size: clamp(30px, 8vw, 48px); line-height: 1.1; }
  .approved-copy p { margin-top: 18px; color: var(--muted); font-size: 16px; line-height: 1.6; }
  .approved-copy .eyebrow { font-size: 11px; }
  .approved-steps, .approved-lenses { margin: 28px 0; padding: 0; list-style: none; }
  .approved-steps li { padding: 18px 0; border-bottom: 1px solid var(--line); }
  .approved-steps h3, .approved-example h3 { margin: 0; font-size: 16px; font-weight: 500; }
  .approved-steps p { margin-top: 6px; }
  .approved-copy .approved-rule { color: var(--text); font-size: 26px; letter-spacing: -0.035em; }
  .approved-lenses { counter-reset: lens; }
  .approved-lenses li { counter-increment: lens; padding: 9px 0; }
  .approved-lenses li::before { content: "0" counter(lens); display: inline-block; width: 38px; color: var(--muted); font-family: var(--font-mono); }
  .approved-example { padding-top: 26px; border-top: 1px solid var(--line); }
  .approved-example dl > div { margin-top: 18px; }
  .approved-example dt { color: var(--muted); font-size: 12px; }
  .approved-example dd { margin-top: 5px; font-size: 16px; }
  .approved-mobile-link { display: block; width: fit-content; margin: 0 var(--page-pad) 40px; padding-block: 12px; color: #9bc1ff; border-bottom: 1px solid #9bc1ff; }
  .approved-mobile-actions { display: grid; gap: 12px; padding: 0 var(--page-pad) 40px; }
  .approved-mobile-actions .button { justify-content: center; min-height: 48px; }
  .approved-trust-rules > div { margin-top: 24px; padding-bottom: 18px; border-bottom: 1px solid var(--line); }
  .approved-trust-rules span { font-size: 21px; }
  .approved-trust-rules p { margin-top: 5px; }
  .approved-trust #access-title { margin-top: 36px; }
  .approved-footer .footer-layout { grid-template-columns: 1fr; padding-inline: var(--page-pad); gap: 25px; }
  .approved-footer .footer-layout nav { flex-wrap: wrap; justify-content: flex-start; }
  .approved-footer .footer-status { text-align: left; }
  .approved-resources { padding-inline: var(--page-pad); }
}

@media print {
  .approved-art, .approved-action, .approved-pilot-actions, .approved-mobile-actions { display: none; }
  .approved-copy { position: static; width: auto; height: auto; overflow: visible; clip-path: none; white-space: normal; color: #000; padding: 24px; }
  .approved-section { background: #fff; }
}

@media print {
  .site-header,
  .menu-button,
  .button,
  .button-link,
  .text-button,
  dialog {
    display: none !important;
  }

  body,
  .section,
  .hero {
    color: #000;
    background: #fff;
  }

  .hero { min-height: auto; }
  .hero-layout { min-height: auto; padding-top: 40px; }
}