/* Beyond Ontology — Grand Thera editorial prototype */
:root {
  color-scheme: dark;
  --black: #050505;
  --black-soft: #0b0b0b;
  --black-raised: #111111;
  --paper: #f1f1ee;
  --paper-bright: #fbfbf8;
  --ink: #f8f8f5;
  --ink-dark: #101010;
  --muted-dark: #6e6e6e;
  --muted-light: #bdbdb7;
  --line-dark: rgba(255, 255, 255, 0.16);
  --line-light: rgba(0, 0, 0, 0.15);
  --accent: #8cd9ff;
  --accent-soft: rgba(140, 217, 255, 0.12);
  --accent-line: rgba(140, 217, 255, 0.45);
  --max: 1440px;
  --gutter: clamp(22px, 4vw, 72px);
  --section-y: clamp(96px, 11vw, 172px);
  --header-h: 72px;
  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 30px;
  --sans: "Helvetica Neue", Helvetica, Arial, sans-serif;
  --technical: "Space Grotesk", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  background: var(--black);
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
}

body {
  margin: 0;
  min-width: 280px;
  overflow-x: hidden;
  background: var(--black);
  color: var(--ink);
  font-family: var(--sans);
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::selection,
::selection {
  background: var(--accent);
  color: var(--ink-dark);
}

button,
a,
input {
  font: inherit;
}

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

button:focus-visible,
a:focus-visible,
input:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

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

button {
  border: 0;
}

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

ul,
ol {
  margin: 0;
  padding: 0;
}

main {
  overflow: clip;
}

.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;
  z-index: 200;
  top: 10px;
  left: 12px;
  translate: 0 -160%;
  min-height: 44px;
  padding: 12px 18px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--ink-dark);
  font-size: 14px;
  text-decoration: none;
}

.skip-link:focus {
  translate: 0 0;
}

.site-header {
  position: fixed;
  z-index: 100;
  inset: 0 0 auto;
  height: var(--header-h);
  padding: 0 max(18px, calc((100vw - var(--max)) / 2 + var(--gutter)));
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 22px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(5, 5, 5, 0.92);
  color: white;
  backdrop-filter: blur(16px);
}

.brand-lockup {
  width: 144px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.brand-lockup img {
  width: 144px;
  height: auto;
}

.header-context {
  display: flex;
  align-items: center;
  gap: 14px;
  color: rgba(255, 255, 255, 0.56);
  font-family: var(--technical);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.header-context span + span::before {
  content: "";
  display: inline-block;
  width: 22px;
  height: 1px;
  margin: 0 14px 3px 0;
  background: rgba(255, 255, 255, 0.28);
}

.language-switcher {
  justify-self: end;
  display: flex;
  padding: 3px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
}

.language-switcher button {
  min-width: 48px;
  min-height: 44px;
  border-radius: 999px;
  background: transparent;
  color: rgba(255, 255, 255, 0.58);
  cursor: pointer;
  font-family: var(--technical);
  font-size: 11px;
  letter-spacing: 0.12em;
  transition: background 180ms ease, color 180ms ease;
}

.language-switcher button[aria-pressed="true"] {
  background: white;
  color: black;
}

.section {
  position: relative;
  min-width: 0;
  padding: var(--section-y) max(var(--gutter), calc((100vw - var(--max)) / 2 + var(--gutter)));
}

.section-dark {
  background: var(--black);
  color: var(--ink);
}

.section-light {
  background: var(--paper);
  color: var(--ink-dark);
}

.section-heading {
  max-width: 1020px;
  margin-bottom: clamp(52px, 7vw, 96px);
}

.section-label,
.technical-label,
.source-note,
.scroller-label,
.layer-kind,
.artifact-status,
.gate-result > span,
.qualification-result > span {
  font-family: var(--technical);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.section-label {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-bottom: 22px;
}

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

.section-light .section-label span:first-child,
.section-light .technical-label {
  color: #186481;
}

.section-label span:first-child::after {
  content: "";
  display: inline-block;
  width: 34px;
  height: 1px;
  margin-left: 15px;
  vertical-align: middle;
  background: currentColor;
  opacity: 0.65;
}

.section-heading h2,
.closing-section > h2 {
  max-width: 1120px;
  font-size: clamp(48px, 7.4vw, 112px);
  font-weight: 300;
  line-height: 0.96;
  letter-spacing: -0.055em;
  text-wrap: balance;
}

.section-intro {
  max-width: 780px;
  margin-top: 30px;
  color: var(--muted-light);
  font-size: clamp(17px, 1.45vw, 22px);
  line-height: 1.48;
  text-wrap: pretty;
}

.section-light .section-intro {
  color: #50504c;
}

.source-note {
  margin-top: 32px;
  color: rgba(255, 255, 255, 0.58);
  letter-spacing: 0.08em;
  line-height: 1.55;
}

.section-light .source-note {
  color: #62625e;
}

.text-link,
.primary-link {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  gap: 18px;
  color: inherit;
  font-size: 14px;
  font-weight: 500;
  text-underline-offset: 7px;
}

.text-link span:last-child,
.primary-link span:last-child {
  transition: transform 260ms var(--ease-out);
}

.text-link:hover span:last-child,
.primary-link:hover span:last-child {
  transform: translate(3px, -3px);
}

.primary-link {
  padding: 0 22px;
  border-radius: 999px;
  background: white;
  color: black;
  text-decoration: none;
}

/* Hero */
.hero {
  min-height: max(820px, 100svh);
  padding-top: calc(var(--header-h) + clamp(52px, 7vw, 92px));
  padding-bottom: 78px;
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(390px, 0.88fr);
  gap: clamp(40px, 6vw, 100px);
  align-items: center;
  isolation: isolate;
}

.hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0;
  background:
    linear-gradient(90deg, transparent 49.94%, rgba(255, 255, 255, 0.055) 50%, transparent 50.06%),
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 100% 100%, 100% 96px;
  mask-image: linear-gradient(to bottom, transparent, black 20%, black 78%, transparent);
  pointer-events: none;
}

.hero-copy {
  position: relative;
  z-index: 2;
}

.hero h1 {
  margin: 0 0 38px;
  font-size: clamp(82px, 11vw, 178px);
  font-weight: 300;
  line-height: 0.76;
  letter-spacing: -0.075em;
}

.hero h1 span {
  display: block;
}

.hero h1 span:last-child {
  color: transparent;
  -webkit-text-stroke: 1px rgba(255, 255, 255, 0.74);
}

.hero blockquote {
  max-width: 780px;
  padding: 0 0 0 22px;
  border-left: 1px solid var(--accent);
  font-size: clamp(18px, 1.7vw, 26px);
  font-weight: 300;
  line-height: 1.42;
  text-wrap: pretty;
}

.hero-deck {
  max-width: 660px;
  margin-top: 28px;
  color: rgba(255, 255, 255, 0.69);
  font-size: 16px;
  line-height: 1.62;
}

.hero-meta {
  max-width: 780px;
  margin: 42px 0 22px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
}

.hero-meta > div {
  min-width: 0;
  padding: 18px 16px 18px 0;
}

.hero-meta > div + div {
  padding-left: 18px;
  border-left: 1px solid var(--line-dark);
}

.hero-meta span,
.hero-meta strong {
  display: block;
}

.hero-meta span {
  margin-bottom: 8px;
  color: rgba(255, 255, 255, 0.54);
  font-family: var(--technical);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero-meta strong {
  overflow-wrap: anywhere;
  font-size: 12px;
  font-weight: 500;
  line-height: 1.4;
}

.hero-visual {
  min-width: 0;
}

.epistemic-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 0.92;
  overflow: hidden;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 50% 46%, rgba(140, 217, 255, 0.08), transparent 42%),
    #080808;
  box-shadow: inset 0 0 80px rgba(0, 0, 0, 0.62);
  cursor: crosshair;
}

.epistemic-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 52px 52px;
  mask-image: radial-gradient(circle at center, black, transparent 74%);
  pointer-events: none;
}

.epistemic-frame.is-webgl-fallback::after {
  content: "";
  position: absolute;
  z-index: 1;
  left: 50%;
  top: 50%;
  width: 62%;
  aspect-ratio: 1;
  translate: -50% -50%;
  border: 1px solid rgba(140, 217, 255, 0.24);
  border-radius: 50%;
  background:
    radial-gradient(circle, transparent 24%, rgba(140, 217, 255, 0.08) 24.4%, transparent 25%, transparent 42%, rgba(255, 255, 255, 0.08) 42.4%, transparent 43%),
    repeating-conic-gradient(from 18deg, rgba(140, 217, 255, 0.18) 0 0.4deg, transparent 0.4deg 28deg);
  box-shadow: 0 0 72px rgba(140, 217, 255, 0.08);
  transform: rotateX(62deg) rotateZ(14deg);
  pointer-events: none;
}

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

.scene-axis {
  position: absolute;
  z-index: 2;
  left: 50%;
  top: 12%;
  bottom: 12%;
  width: 1px;
  background: linear-gradient(transparent, var(--accent-line), transparent);
  pointer-events: none;
}

.scene-core {
  position: absolute;
  z-index: 3;
  left: 50%;
  top: 50%;
  translate: -50% -50%;
  width: 72px;
  height: 72px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(140, 217, 255, 0.56);
  border-radius: 50%;
  background: rgba(5, 5, 5, 0.72);
  color: white;
  font-family: var(--technical);
  font-size: 18px;
  letter-spacing: -0.02em;
  box-shadow: 0 0 56px rgba(140, 217, 255, 0.14);
  pointer-events: none;
}

.scene-core sup {
  margin-left: -3px;
  color: var(--accent);
  font-size: 9px;
}

.scene-label {
  position: absolute;
  z-index: 3;
  left: 22px;
  right: 22px;
  display: flex;
  justify-content: space-between;
  color: rgba(255, 255, 255, 0.5);
  font-family: var(--technical);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  pointer-events: none;
}

.scene-label-top {
  top: 20px;
}

.scene-label-bottom {
  bottom: 20px;
}

.scene-label span:first-child {
  color: var(--accent);
}

.visual-caption {
  max-width: 500px;
  margin-top: 16px;
  color: rgba(255, 255, 255, 0.54);
  font-family: var(--technical);
  font-size: 10px;
  letter-spacing: 0.1em;
  line-height: 1.5;
  text-transform: uppercase;
}

.scroll-cue {
  position: absolute;
  left: max(var(--gutter), calc((100vw - var(--max)) / 2 + var(--gutter)));
  bottom: 22px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  gap: 16px;
  color: rgba(255, 255, 255, 0.46);
  font-family: var(--technical);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-decoration: none;
  text-transform: uppercase;
}

.scroll-cue span:last-child {
  color: var(--accent);
  animation: cue-bob 1.8s ease-in-out infinite;
}

/* Inferential gap */
.gap-section {
  border-top: 1px solid rgba(0, 0, 0, 0.08);
}

.gap-equation {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: stretch;
  gap: clamp(20px, 4vw, 60px);
  margin-bottom: clamp(66px, 8vw, 112px);
}

.equation-term {
  position: relative;
  min-height: 220px;
  padding: 28px 30px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  border-top: 1px solid var(--ink-dark);
  border-bottom: 1px solid var(--line-light);
}

.term-index {
  position: absolute;
  top: 22px;
  right: 24px;
  color: rgba(0, 0, 0, 0.1);
  font-size: 92px;
  font-weight: 300;
  line-height: 1;
}

.equation-term strong {
  position: relative;
  font-size: clamp(26px, 3vw, 44px);
  font-weight: 300;
  line-height: 1;
  letter-spacing: -0.04em;
}

.equation-term small {
  position: relative;
  max-width: 390px;
  margin-top: 14px;
  color: var(--muted-dark);
  font-size: 14px;
  line-height: 1.5;
}

.not-implies {
  align-self: center;
  color: #176380;
  font-size: clamp(40px, 5vw, 76px);
  font-weight: 300;
}

.gap-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(420px, 1.18fr);
  gap: clamp(50px, 8vw, 126px);
  align-items: center;
}

.gap-copy .lede {
  max-width: 640px;
  margin-bottom: 24px;
  font-size: clamp(27px, 3vw, 43px);
  font-weight: 300;
  line-height: 1.15;
  letter-spacing: -0.035em;
}

.gap-copy > p:not(.lede):not(.source-note) {
  max-width: 620px;
  color: #50504c;
  font-size: 17px;
  line-height: 1.65;
}

.signal-lab {
  min-width: 0;
  padding-top: 18px;
  border-top: 1px solid var(--line-light);
}

.signal-lab-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 16px;
}

.signal-lab-head button {
  min-height: 44px;
  padding: 0 17px;
  border: 1px solid var(--line-light);
  border-radius: 999px;
  background: transparent;
  color: var(--ink-dark);
  cursor: pointer;
  font-size: 12px;
}

.signal-lab-head button[aria-pressed="true"] {
  background: var(--ink-dark);
  color: white;
}

.signal-canvas-wrap {
  position: relative;
  aspect-ratio: 1.55;
  overflow: hidden;
  border: 1px solid var(--line-light);
  border-radius: var(--radius-md);
  background: #e7e7e2;
  cursor: crosshair;
}

#signal-canvas {
  width: 100%;
  height: 100%;
}

.signal-legend {
  position: absolute;
  inset: auto 16px 14px;
  display: flex;
  justify-content: space-between;
  color: rgba(0, 0, 0, 0.5);
  font-family: var(--technical);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  pointer-events: none;
}

.interaction-note,
.equation-note,
.equation-legend {
  color: inherit;
  font-size: 13px;
  line-height: 1.55;
  opacity: 0.58;
}

.signal-lab .interaction-note {
  margin-top: 15px;
}

/* Layer explorer */
.layers-section::before {
  content: "Mᴱ";
  position: absolute;
  top: 92px;
  right: -0.02em;
  color: rgba(255, 255, 255, 0.025);
  font-size: min(32vw, 520px);
  font-weight: 300;
  letter-spacing: -0.08em;
  line-height: 0.75;
  pointer-events: none;
}

.layer-flow {
  margin: 0 0 42px;
}

.flow-track {
  height: 1px;
  overflow: visible;
  background: rgba(255, 255, 255, 0.18);
}

#flow-progress {
  display: block;
  width: 0;
  height: 1px;
  background: var(--accent);
  box-shadow: 0 0 14px rgba(140, 217, 255, 0.72);
  transition: width 520ms var(--ease-out);
}

#flow-progress::after {
  content: "";
  float: right;
  width: 7px;
  height: 7px;
  margin-top: -3px;
  border-radius: 50%;
  background: var(--accent);
}

.flow-labels {
  margin-top: 12px;
  display: flex;
  justify-content: space-between;
  color: rgba(255, 255, 255, 0.36);
  font-family: var(--technical);
  font-size: 9px;
  letter-spacing: 0.12em;
}

.flow-labels span:last-child {
  padding-right: 2px;
  white-space: nowrap;
}

.layer-explorer {
  position: relative;
  display: grid;
  grid-template-columns: minmax(230px, 0.32fr) minmax(0, 1fr);
  border-top: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
}

.layer-nav {
  min-width: 0;
  padding: 28px 28px 28px 0;
  border-right: 1px solid var(--line-dark);
}

.scroller-label {
  margin-bottom: 18px;
  color: rgba(255, 255, 255, 0.62);
}

.layer-buttons {
  display: grid;
}

.layer-button {
  min-height: 62px;
  padding: 10px 12px;
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  align-items: center;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: transparent;
  color: rgba(255, 255, 255, 0.5);
  text-align: left;
  cursor: pointer;
  transition: background 180ms ease, color 180ms ease, padding 220ms var(--ease-out);
}

.layer-button:last-child {
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.layer-button:hover,
.layer-button.is-active {
  padding-left: 18px;
  background: rgba(255, 255, 255, 0.05);
  color: white;
}

.layer-button.is-active span {
  color: var(--accent);
}

.layer-button span {
  font-family: var(--technical);
  font-size: 12px;
  letter-spacing: 0.12em;
}

.layer-button small {
  overflow: hidden;
  font-size: 13px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.layer-detail {
  min-width: 0;
  min-height: 610px;
  padding: clamp(34px, 5vw, 78px);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background:
    linear-gradient(90deg, transparent, rgba(140, 217, 255, 0.03), transparent),
    var(--black);
}

.layer-detail-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.layer-number {
  color: var(--accent);
  font-size: clamp(54px, 8vw, 116px);
  font-weight: 300;
  line-height: 0.8;
  letter-spacing: -0.07em;
}

.layer-kind {
  padding: 9px 12px;
  border: 1px solid var(--accent-line);
  color: var(--accent);
}

.layer-detail h3 {
  max-width: 900px;
  margin-top: 48px;
  font-size: clamp(38px, 5vw, 78px);
  font-weight: 300;
  line-height: 0.98;
  letter-spacing: -0.05em;
  text-wrap: balance;
}

.layer-question {
  max-width: 820px;
  margin-top: 20px;
  color: rgba(255, 255, 255, 0.64);
  font-size: clamp(18px, 2vw, 27px);
  font-weight: 300;
  line-height: 1.35;
}

.layer-columns {
  margin-top: auto;
  padding-top: 56px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
}

.layer-columns > div {
  min-width: 0;
  padding: 20px 24px 20px 0;
  border-top: 1px solid var(--line-dark);
}

.layer-columns > div + div {
  padding-left: 24px;
  border-left: 1px solid var(--line-dark);
}

.layer-columns span {
  color: rgba(255, 255, 255, 0.56);
  font-family: var(--technical);
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.layer-columns p {
  margin-top: 10px;
  color: rgba(255, 255, 255, 0.76);
  font-size: 14px;
  line-height: 1.58;
}

.layer-citation {
  margin-top: 24px;
  color: rgba(255, 255, 255, 0.52);
  font-family: var(--technical);
  font-size: 10px;
  letter-spacing: 0.08em;
  line-height: 1.5;
  text-transform: uppercase;
}

.transversal-note {
  max-width: 920px;
  margin: 30px 0 0 auto;
  display: grid;
  grid-template-columns: 54px 1fr;
  gap: 18px;
  color: rgba(255, 255, 255, 0.56);
  font-size: 14px;
  line-height: 1.55;
}

.transversal-note > span:first-child {
  color: var(--accent);
  font-family: var(--technical);
  letter-spacing: 0.12em;
}

/* Persistence */
.persistence-lab {
  display: grid;
  grid-template-columns: minmax(260px, 0.78fr) minmax(300px, 1fr) minmax(260px, 0.72fr);
  gap: 1px;
  border-top: 1px solid var(--ink-dark);
  border-bottom: 1px solid var(--line-light);
  background: var(--line-light);
}

.persistence-lab > div {
  min-width: 0;
  padding: clamp(28px, 4vw, 54px);
  background: var(--paper);
}

.persistence-control label,
.dependence-panel label,
.probability-control label {
  margin: 34px 0 22px;
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
  font-size: 15px;
  line-height: 1.35;
}

.persistence-control output,
.dependence-panel output,
.probability-control output {
  flex: none;
  color: #176380;
  font-size: 38px;
  font-weight: 300;
  letter-spacing: -0.05em;
}

input[type="range"] {
  width: 100%;
  height: 44px;
  margin: 0;
  appearance: none;
  background: transparent;
  cursor: ew-resize;
}

input[type="range"]::-webkit-slider-runnable-track {
  height: 2px;
  background: linear-gradient(90deg, #176380 var(--range-progress, 50%), rgba(0, 0, 0, 0.18) var(--range-progress, 50%));
}

input[type="range"]::-moz-range-track {
  height: 2px;
  background: rgba(0, 0, 0, 0.18);
}

input[type="range"]::-moz-range-progress {
  height: 2px;
  background: #176380;
}

input[type="range"]::-webkit-slider-thumb {
  width: 20px;
  height: 20px;
  margin-top: -9px;
  appearance: none;
  border: 5px solid var(--paper);
  border-radius: 50%;
  background: #176380;
  box-shadow: 0 0 0 1px #176380;
}

input[type="range"]::-moz-range-thumb {
  width: 12px;
  height: 12px;
  border: 5px solid var(--paper);
  border-radius: 50%;
  background: #176380;
  box-shadow: 0 0 0 1px #176380;
}

.range-ticks {
  display: flex;
  justify-content: space-between;
  color: #7c7c76;
  font-family: var(--technical);
  font-size: 9px;
}

.persistence-control .interaction-note,
.probability-control .interaction-note {
  margin-top: 26px;
}

.perturbation-grid {
  display: grid;
  gap: 20px;
  align-content: center;
}

.perturbation-row {
  display: grid;
  grid-template-columns: minmax(86px, 0.42fr) minmax(110px, 1fr) 42px;
  align-items: center;
  gap: 14px;
  font-size: 12px;
}

.perturbation-row > span {
  color: #4e4e4a;
}

.micro-track {
  height: 5px;
  overflow: hidden;
  background: rgba(0, 0, 0, 0.12);
}

.micro-track i {
  display: block;
  width: 0;
  height: 100%;
  background: #176380;
  transition: width 420ms var(--ease-out);
}

.perturbation-row strong {
  color: #176380;
  font-family: var(--technical);
  font-size: 11px;
  font-weight: 500;
  text-align: right;
}

.qualification-result {
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: var(--ink-dark) !important;
  color: white;
}

.qualification-result > span {
  color: var(--accent);
}

.qualification-result strong {
  margin-top: 28px;
  font-size: clamp(30px, 3.2vw, 50px);
  font-weight: 300;
  line-height: 1;
  letter-spacing: -0.04em;
}

.qualification-result p {
  margin-top: 16px;
  color: rgba(255, 255, 255, 0.58);
  font-size: 14px;
  line-height: 1.56;
}

.classification-scale {
  margin-top: 24px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line-light);
}

.classification-scale span {
  position: relative;
  padding: 14px 12px 0 0;
  color: #62625e;
  font-size: 11px;
}

.classification-scale span::before {
  content: "";
  position: absolute;
  top: -3px;
  left: 0;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #62625e;
}

.classification-scale span.is-active {
  color: #176380;
  font-weight: 600;
}

.classification-scale span.is-active::before {
  width: 9px;
  height: 9px;
  top: -5px;
  background: #176380;
}

/* Convergence */
.convergence-lab {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(310px, 0.65fr);
  gap: 1px;
  border: 1px solid var(--line-dark);
  background: var(--line-dark);
}

.family-field,
.dependence-panel {
  min-width: 0;
  background: var(--black);
}

.family-field {
  position: relative;
  min-height: 500px;
  overflow: hidden;
}

.family-field::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(90deg, black, transparent 86%);
}

.family-node {
  position: absolute;
  z-index: 2;
  left: clamp(22px, 5vw, 72px);
  width: min(245px, 38%);
  min-height: 94px;
  padding: 16px;
  display: grid;
  grid-template-columns: 42px 1fr;
  align-content: center;
  border-left: 1px solid var(--accent-line);
  background: rgba(5, 5, 5, 0.8);
}

.family-node > span {
  grid-row: span 2;
  align-self: center;
  color: var(--accent);
  font-size: 22px;
}

.family-node strong {
  font-size: 14px;
  font-weight: 500;
}

.family-node small {
  margin-top: 6px;
  color: rgba(255, 255, 255, 0.62);
  font-size: 10px;
  line-height: 1.35;
}

.family-stat {
  top: 10%;
}

.family-symbolic {
  top: 40%;
}

.family-learned {
  top: 70%;
}

.convergence-lines {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.convergence-lines path {
  fill: none;
  stroke: var(--accent);
  stroke-width: 1.5;
  stroke-dasharray: 4 10;
  opacity: var(--stream-opacity, 0.72);
  animation: stream-flow 3s linear infinite;
}

.convergence-lines circle {
  fill: #080808;
  stroke: var(--accent-line);
  stroke-width: 1;
}

.convergence-lines text {
  fill: white;
  font-family: var(--technical);
  font-size: 22px;
}

.convergence-lines .svg-small {
  fill: var(--accent);
  font-size: 9px;
  letter-spacing: 0.12em;
}

.dependence-panel {
  padding: clamp(30px, 5vw, 62px);
}

.dependence-panel .technical-label {
  color: var(--accent);
}

.dependence-panel label {
  color: rgba(255, 255, 255, 0.74);
}

.dependence-panel output {
  color: var(--accent);
}

.dependence-panel input[type="range"]::-webkit-slider-runnable-track,
.probability-control input[type="range"]::-webkit-slider-runnable-track {
  background: linear-gradient(90deg, var(--accent) var(--range-progress, 50%), rgba(255, 255, 255, 0.18) var(--range-progress, 50%));
}

.dependence-panel input[type="range"]::-moz-range-track,
.probability-control input[type="range"]::-moz-range-track {
  background: rgba(255, 255, 255, 0.18);
}

.dependence-panel input[type="range"]::-moz-range-progress,
.probability-control input[type="range"]::-moz-range-progress {
  background: var(--accent);
}

.dependence-panel input[type="range"]::-webkit-slider-thumb,
.probability-control input[type="range"]::-webkit-slider-thumb {
  border-color: var(--black);
  background: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}

.dependence-panel input[type="range"]::-moz-range-thumb,
.probability-control input[type="range"]::-moz-range-thumb {
  border-color: var(--black);
  background: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}

.evidence-counts {
  margin-top: 36px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
}

.evidence-counts > div {
  padding: 20px 18px 20px 0;
}

.evidence-counts > div + div {
  padding-left: 18px;
  border-left: 1px solid var(--line-dark);
}

.evidence-counts span,
.evidence-counts strong {
  display: block;
}

.evidence-counts span {
  min-height: 32px;
  color: rgba(255, 255, 255, 0.62);
  font-size: 10px;
  line-height: 1.4;
}

.evidence-counts strong {
  margin-top: 12px;
  color: white;
  font-size: 34px;
  font-weight: 300;
  letter-spacing: -0.04em;
}

.dependence-panel .interaction-note {
  min-height: 62px;
  margin-top: 22px;
  color: rgba(255, 255, 255, 0.78);
  opacity: 1;
}

.equation-note {
  margin-top: 28px;
  padding-top: 18px;
  border-top: 1px solid var(--line-dark);
}

.principle-quote {
  max-width: 1180px;
  margin: clamp(70px, 9vw, 128px) auto 0;
  font-size: clamp(34px, 5vw, 72px);
  font-weight: 300;
  line-height: 1.08;
  letter-spacing: -0.04em;
  text-align: center;
  text-wrap: balance;
}

/* Probability and artifact */
.probability-lab {
  display: grid;
  grid-template-columns: minmax(280px, 0.72fr) minmax(0, 1.28fr);
  gap: 1px;
  border-top: 1px solid var(--ink-dark);
  border-bottom: 1px solid var(--line-light);
  background: var(--line-light);
}

.probability-control {
  min-width: 0;
  padding: clamp(30px, 5vw, 60px);
  background: var(--ink-dark);
  color: white;
}

.probability-control .technical-label,
.probability-control output {
  color: var(--accent);
}

.probability-outputs {
  min-width: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line-light);
}

.probability-outputs > div {
  min-height: 210px;
  padding: clamp(24px, 3.5vw, 46px);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: var(--paper);
}

.probability-outputs span,
.probability-outputs small {
  color: var(--muted-dark);
  font-size: 11px;
  line-height: 1.45;
}

.probability-outputs strong {
  margin: auto 0 16px;
  color: #176380;
  font-size: clamp(42px, 5vw, 72px);
  font-weight: 300;
  letter-spacing: -0.055em;
}

.impact-arrow {
  margin: 54px 0;
  display: grid;
  grid-template-columns: auto 1fr auto 1fr auto;
  align-items: center;
  gap: 18px;
  color: #176380;
  font-family: var(--technical);
  font-size: 11px;
  letter-spacing: 0.12em;
}

.impact-arrow i {
  height: 1px;
  background: linear-gradient(90deg, #176380, transparent 72%, #176380);
}

.decision-artifact {
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: var(--ink-dark);
  color: white;
}

.decision-artifact > header {
  padding: clamp(26px, 4vw, 48px);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid var(--line-dark);
}

.decision-artifact .technical-label {
  color: var(--accent);
}

.decision-artifact h3 {
  margin-top: 15px;
  font-size: clamp(29px, 4vw, 54px);
  font-weight: 300;
  letter-spacing: -0.045em;
}

.artifact-status {
  flex: none;
  padding: 10px 12px;
  border: 1px solid var(--accent-line);
  color: var(--accent);
}

.artifact-primary {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  border-bottom: 1px solid var(--line-dark);
}

.artifact-primary > div {
  min-width: 0;
  padding: clamp(30px, 5vw, 64px);
}

.artifact-primary > div + div {
  border-left: 1px solid var(--line-dark);
}

.artifact-primary span,
.artifact-primary strong,
.artifact-primary small {
  display: block;
}

.artifact-primary span {
  color: rgba(255, 255, 255, 0.62);
  font-size: 11px;
}

.artifact-primary strong {
  margin-top: 28px;
  color: var(--accent);
  font-size: clamp(46px, 7vw, 102px);
  font-weight: 300;
  line-height: 0.9;
  letter-spacing: -0.06em;
}

.artifact-primary > div:last-child strong {
  color: white;
  font-size: clamp(33px, 4vw, 62px);
}

.artifact-primary small {
  margin-top: 18px;
  color: rgba(255, 255, 255, 0.64);
  font-size: 12px;
  line-height: 1.45;
}

.artifact-ledger {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.artifact-ledger > div {
  min-width: 0;
  padding: 24px clamp(20px, 3vw, 40px);
  border-right: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
}

.artifact-ledger > div:nth-child(3n) {
  border-right: 0;
}

.artifact-ledger dt {
  color: rgba(255, 255, 255, 0.55);
  font-family: var(--technical);
  font-size: 9px;
  letter-spacing: 0.12em;
  line-height: 1.4;
  text-transform: uppercase;
}

.artifact-ledger dd {
  margin-top: 12px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 13px;
  line-height: 1.45;
  overflow-wrap: anywhere;
}

.decision-artifact > footer {
  padding: 22px clamp(24px, 4vw, 48px);
  color: rgba(255, 255, 255, 0.62);
  font-size: 12px;
  line-height: 1.5;
}

/* Complexity */
.complexity-section::after {
  content: "ΔV > 0";
  position: absolute;
  top: 58%;
  right: -0.04em;
  z-index: 0;
  color: rgba(255, 255, 255, 0.025);
  font-size: min(24vw, 380px);
  font-weight: 300;
  letter-spacing: -0.07em;
  line-height: 0.8;
  pointer-events: none;
}

.complexity-section > * {
  position: relative;
  z-index: 1;
}

.complexity-gate {
  display: grid;
  grid-template-columns: 1fr 1fr 0.9fr;
  gap: 1px;
  border: 1px solid var(--line-dark);
  background: var(--line-dark);
}

.gate-step,
.gate-result {
  min-width: 0;
  min-height: 330px;
  padding: clamp(28px, 4vw, 52px);
  background: var(--black);
}

.gate-step[aria-disabled="true"] {
  opacity: 0.32;
}

.gate-index {
  color: var(--accent);
  font-family: var(--technical);
  font-size: 11px;
  letter-spacing: 0.16em;
}

.gate-step h3 {
  max-width: 420px;
  margin-top: 34px;
  font-size: clamp(23px, 2.5vw, 36px);
  font-weight: 300;
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.choice-group {
  margin-top: 50px;
  display: flex;
  gap: 8px;
}

.choice {
  min-width: 76px;
  min-height: 46px;
  border: 1px solid var(--line-dark);
  border-radius: 999px;
  background: transparent;
  color: rgba(255, 255, 255, 0.55);
  cursor: pointer;
  font-size: 13px;
}

.choice.is-selected {
  border-color: white;
  background: white;
  color: black;
}

.choice:disabled {
  cursor: not-allowed;
}

.gate-result {
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: var(--accent);
  color: var(--ink-dark);
}

.gate-result > span {
  color: rgba(0, 0, 0, 0.55);
}

.gate-result strong {
  margin-top: 28px;
  font-size: clamp(34px, 4vw, 58px);
  font-weight: 300;
  line-height: 0.98;
  letter-spacing: -0.05em;
}

.gate-result p {
  margin-top: 18px;
  font-size: 14px;
  line-height: 1.55;
}

.value-equation {
  margin-top: clamp(62px, 8vw, 110px);
  padding: 26px 0;
  overflow-x: auto;
  border-top: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
  color: rgba(255, 255, 255, 0.82);
  font-size: clamp(22px, 2.8vw, 42px);
  scrollbar-color: var(--accent) transparent;
  scrollbar-width: thin;
}

.value-equation mjx-container[jax="CHTML"] {
  width: max-content;
  min-width: 100%;
  margin: 0 !important;
  padding-inline: 2px;
  text-align: left !important;
}

.equation-legend {
  max-width: 780px;
  margin-top: 20px;
  color: rgba(255, 255, 255, 0.62);
  opacity: 1;
}

/* Limits */
.limits-ledger {
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--ink-dark);
  border-bottom: 1px solid var(--line-light);
}

.limits-ledger article {
  min-width: 0;
  padding: clamp(30px, 5vw, 64px);
  background: var(--paper);
}

.limits-ledger ul {
  margin-top: 36px;
  list-style: none;
}

.limits-ledger article:first-child li {
  position: relative;
  padding: 18px 0 18px 32px;
  border-top: 1px solid var(--line-light);
  font-size: clamp(17px, 1.6vw, 22px);
  font-weight: 300;
  line-height: 1.45;
}

.limits-ledger article:first-child li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 27px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #176380;
}

.agenda {
  margin-top: clamp(72px, 9vw, 130px);
  display: grid;
  grid-template-columns: minmax(180px, 0.36fr) minmax(0, 1fr);
  gap: clamp(32px, 6vw, 90px);
}

.agenda ol {
  list-style: none;
}

.agenda li {
  padding: 24px 0;
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 22px;
  border-top: 1px solid var(--line-light);
}

.agenda li:last-child {
  border-bottom: 1px solid var(--line-light);
}

.agenda li > span {
  color: #176380;
  font-family: var(--technical);
  font-size: 11px;
  letter-spacing: 0.12em;
}

.agenda li p {
  max-width: 820px;
  font-size: clamp(19px, 2.1vw, 30px);
  font-weight: 300;
  line-height: 1.26;
  letter-spacing: -0.02em;
}

.governance-callout {
  margin-top: clamp(72px, 9vw, 126px);
  padding: clamp(28px, 5vw, 58px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 30px;
  border: 1px solid var(--ink-dark);
}

.governance-callout p {
  max-width: 970px;
  font-size: clamp(27px, 3.6vw, 54px);
  font-weight: 300;
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.governance-callout span {
  color: var(--muted-dark);
  font-family: var(--technical);
  font-size: 9px;
  letter-spacing: 0.1em;
  line-height: 1.55;
  text-transform: uppercase;
}

/* Closing */
.closing-section {
  min-height: 92svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background:
    radial-gradient(circle at 74% 42%, rgba(140, 217, 255, 0.08), transparent 28%),
    var(--black);
}

.closing-section > h2 {
  max-width: 1320px;
  font-size: clamp(54px, 9vw, 142px);
}

.closing-grid {
  margin-top: clamp(54px, 8vw, 110px);
  padding-top: 28px;
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) auto;
  gap: 48px;
  border-top: 1px solid var(--line-dark);
}

.closing-grid > p {
  max-width: 760px;
  color: rgba(255, 255, 255, 0.6);
  font-size: 17px;
  line-height: 1.62;
}

.closing-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 18px;
}

.page-footer {
  margin-top: clamp(72px, 10vw, 150px);
  padding-top: 28px;
  display: grid;
  grid-template-columns: 170px 1fr auto;
  align-items: center;
  gap: 28px;
  border-top: 1px solid var(--line-dark);
}

.page-footer img {
  width: 142px;
  height: auto;
}

.page-footer > div {
  display: flex;
  flex-direction: column;
  gap: 7px;
  color: rgba(255, 255, 255, 0.42);
  font-size: 11px;
  line-height: 1.4;
}

.page-footer a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: rgba(255, 255, 255, 0.62);
  font-size: 12px;
}

noscript {
  position: fixed;
  z-index: 500;
  inset: auto 12px 12px;
  padding: 14px 18px;
  border: 1px solid white;
  background: black;
  color: white;
  font-size: 13px;
}

/* Entrance motion */
.js .reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 800ms var(--ease), transform 900ms var(--ease-out);
}

.js .reveal[data-reveal-delay="1"] {
  transition-delay: 100ms;
}

.js .reveal[data-reveal-delay="2"] {
  transition-delay: 190ms;
}

.js .reveal.is-visible {
  opacity: 1;
  transform: none;
}

@keyframes stream-flow {
  to {
    stroke-dashoffset: -28;
  }
}

@keyframes cue-bob {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(5px);
  }
}

/* Responsive */
@media (max-width: 1120px) {
  .hero {
    grid-template-columns: minmax(0, 1fr) minmax(360px, 0.78fr);
  }

  .hero h1 {
    font-size: clamp(78px, 10vw, 126px);
  }

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

  .qualification-result {
    grid-column: 1 / -1;
    min-height: 230px;
  }

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

  .gate-result {
    grid-column: 1 / -1;
    min-height: 230px;
  }
}

@media (max-width: 900px) {
  :root {
    --header-h: 68px;
  }

  .site-header {
    grid-template-columns: 1fr auto;
  }

  .header-context {
    display: none;
  }

  .hero {
    min-height: auto;
    padding-top: calc(var(--header-h) + 70px);
    padding-bottom: 110px;
    grid-template-columns: 1fr;
  }

  .hero-copy {
    max-width: 760px;
  }

  .hero-visual {
    width: min(100%, 660px);
    margin: 18px auto 0;
  }

  .epistemic-frame {
    aspect-ratio: 1.12;
  }

  .gap-grid,
  .convergence-lab,
  .limits-ledger,
  .agenda,
  .governance-callout,
  .closing-grid {
    grid-template-columns: 1fr;
  }

  .gap-equation {
    grid-template-columns: 1fr;
  }

  .not-implies {
    justify-self: center;
    rotate: 90deg;
  }

  .layer-explorer {
    grid-template-columns: 1fr;
  }

  .layer-nav {
    padding: 24px 0;
    border-right: 0;
    border-bottom: 1px solid var(--line-dark);
  }

  .layer-buttons {
    grid-auto-flow: column;
    grid-auto-columns: minmax(128px, 0.32fr);
    overflow-x: auto;
    overscroll-behavior-x: contain;
    scroll-snap-type: x proximity;
    scrollbar-color: var(--accent) transparent;
    scrollbar-width: thin;
  }

  .layer-button {
    min-height: 86px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 8px;
    border: 0;
    border-right: 1px solid rgba(255, 255, 255, 0.1);
    scroll-snap-align: start;
  }

  .layer-button:last-child {
    border-bottom: 0;
  }

  .layer-detail {
    min-height: 680px;
  }

  .family-field {
    min-height: 470px;
  }

  .dependence-panel {
    border-top: 1px solid var(--line-dark);
  }

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

  .artifact-ledger > div:nth-child(3n) {
    border-right: 1px solid var(--line-dark);
  }

  .artifact-ledger > div:nth-child(2n) {
    border-right: 0;
  }

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

  .page-footer > div {
    grid-column: 1 / -1;
    grid-row: 2;
  }
}

@media (max-width: 680px) {
  :root {
    --gutter: 20px;
    --section-y: 88px;
  }

  .site-header {
    padding-inline: 16px;
  }

  .brand-lockup,
  .brand-lockup img {
    width: 122px;
  }

  .language-switcher button {
    min-width: 44px;
  }

  .section-heading {
    margin-bottom: 50px;
  }

  .section-heading h2,
  .closing-section > h2 {
    font-size: clamp(43px, 13.2vw, 72px);
  }

  .hero {
    padding-top: calc(var(--header-h) + 58px);
  }

  .hero h1 {
    margin-bottom: 30px;
    font-size: clamp(72px, 22vw, 112px);
  }

  .hero blockquote {
    padding-left: 16px;
    font-size: 18px;
  }

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

  .hero-meta > div {
    padding: 14px 0;
  }

  .hero-meta > div + div {
    padding-left: 0;
    border-top: 1px solid var(--line-dark);
    border-left: 0;
  }

  .epistemic-frame {
    min-height: 430px;
    aspect-ratio: auto;
  }

  .scene-label {
    left: 15px;
    right: 15px;
  }

  .scroll-cue {
    left: var(--gutter);
  }

  .equation-term {
    min-height: 180px;
    padding: 24px 20px;
  }

  .gap-grid {
    gap: 58px;
  }

  .signal-lab-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .signal-canvas-wrap {
    min-height: 330px;
    aspect-ratio: auto;
  }

  .layer-detail {
    min-height: 760px;
    padding: 30px 20px;
  }

  .layer-detail h3 {
    margin-top: 42px;
    font-size: 42px;
  }

  .layer-columns {
    padding-top: 42px;
    grid-template-columns: 1fr;
  }

  .layer-columns > div,
  .layer-columns > div + div {
    padding: 16px 0;
    border-top: 1px solid var(--line-dark);
    border-left: 0;
  }

  .transversal-note {
    grid-template-columns: 42px 1fr;
  }

  .persistence-lab,
  .probability-lab,
  .artifact-primary,
  .complexity-gate {
    grid-template-columns: 1fr;
  }

  .qualification-result,
  .gate-result {
    grid-column: auto;
  }

  .classification-scale {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    row-gap: 26px;
  }

  .family-field {
    min-height: 440px;
  }

  .family-node {
    left: 16px;
    width: 45%;
    min-height: 84px;
    padding: 12px;
    grid-template-columns: 30px 1fr;
  }

  .convergence-lines {
    left: 5%;
    width: 112%;
  }

  .probability-outputs {
    grid-template-columns: 1fr;
  }

  .probability-outputs > div {
    min-height: 178px;
  }

  .artifact-primary > div + div {
    border-top: 1px solid var(--line-dark);
    border-left: 0;
  }

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

  .artifact-ledger > div,
  .artifact-ledger > div:nth-child(3n) {
    border-right: 0;
  }

  .decision-artifact > header {
    align-items: flex-start;
    flex-direction: column;
  }

  .gate-step,
  .gate-result {
    min-height: 280px;
  }

  .value-equation {
    font-size: 22px;
  }

  .limits-ledger article {
    padding: 30px 20px;
  }

  .agenda li {
    grid-template-columns: 36px minmax(0, 1fr);
    gap: 12px;
  }

  .governance-callout {
    align-items: start;
  }

  .closing-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .closing-actions a {
    width: fit-content;
  }

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

  .page-footer > div,
  .page-footer a {
    grid-column: auto;
    grid-row: auto;
  }
}

@media (max-width: 390px) {
  .brand-lockup,
  .brand-lockup img {
    width: 108px;
  }

  .language-switcher button {
    min-width: 44px;
    padding: 0 8px;
  }

  .hero h1 {
    font-size: 68px;
  }

  .section-heading h2,
  .closing-section > h2 {
    font-size: 42px;
  }

  .family-node small {
    display: none;
  }

  .evidence-counts {
    grid-template-columns: 1fr;
  }

  .evidence-counts > div + div {
    padding-left: 0;
    border-top: 1px solid var(--line-dark);
    border-left: 0;
  }
}

@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;
  }

  .js .reveal,
  .js .reveal.is-visible {
    opacity: 1;
    transform: none;
  }
}