@font-face {
  font-family: "IBM Plex Sans";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("assets/fonts/ibm-plex-sans-regular-latin1.woff2") format("woff2");
}

@font-face {
  font-family: "IBM Plex Sans";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("assets/fonts/ibm-plex-sans-semibold-latin1.woff2") format("woff2");
}

@font-face {
  font-family: "IBM Plex Serif";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("assets/fonts/ibm-plex-serif-regular-latin1.woff2") format("woff2");
}

@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("assets/fonts/ibm-plex-mono-regular-latin1.woff2") format("woff2");
}

@font-face {
  font-family: "IBM Plex Sans Condensed";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("assets/fonts/ibm-plex-sans-condensed-semibold-latin1.woff2") format("woff2");
}

:root {
  color-scheme: dark;
  --black: #060908;
  --carbon: #090d0c;
  --graphite: #0d1311;
  --elevated: #121a17;
  --surface: #18231f;
  --line: #28332f;
  --line-strong: #485952;
  --text: #f1f4ed;
  --text-soft: #c0c9c1;
  --text-muted: #8b9991;
  --silver: #d8ded6;
  --cyan: #78e0c5;
  --cyan-dark: #277c68;
  --amber: #f2c36b;
  --green: #a4d678;
  --red: #ff7a78;
  --violet: #c2b7ed;
  --blue: #82b4e5;
  --paper: #dfe3d9;
  --paper-ink: #101512;
  --focus: #f2c36b;
  --header-height: 72px;
  --font-display: "IBM Plex Sans Condensed", "IBM Plex Sans", sans-serif;
  --font-editorial: "IBM Plex Serif", Georgia, serif;
  --font-sans: "IBM Plex Sans", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "IBM Plex Mono", "Cascadia Code", Consolas, monospace;
  --ease-standard: cubic-bezier(0.2, 0.8, 0.2, 1);
  --ease-enter: cubic-bezier(0.16, 1, 0.3, 1);
  --motion-fast: 180ms;
  --motion-state: 460ms;
  font-family: var(--font-sans);
  font-variant-numeric: tabular-nums;
  font-synthesis: none;
  font-kerning: normal;
}

* {
  box-sizing: border-box;
}

html {
  background:
    linear-gradient(rgba(120, 224, 197, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120, 224, 197, 0.025) 1px, transparent 1px),
    var(--black);
  background-size: 48px 48px;
  color: var(--text);
  scroll-behavior: smooth;
}

#main-content,
section[id] {
  scroll-margin-top: var(--header-height);
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  background: var(--black);
  color: var(--text);
  line-height: 1.6;
}

body.menu-open {
  overflow: hidden;
}

button,
select,
input {
  font: inherit;
}

button,
a,
select {
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

button,
select {
  color: inherit;
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

button:focus-visible,
a:focus-visible,
select:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

h1,
h2,
h3,
h4,
p,
blockquote,
dl,
dd,
ol,
ul {
  margin-top: 0;
}

h1,
h2,
h3,
h4 {
  margin-bottom: 0;
  letter-spacing: 0;
  line-height: 1.08;
  text-wrap: balance;
}

h1,
h2 {
  font-family: var(--font-display);
}

h2 {
  max-width: 860px;
  font-size: clamp(48px, 5.2vw, 82px);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 0.98;
}

h3 {
  font-size: 27px;
  font-weight: 600;
}

h4 {
  font-size: 18px;
  font-weight: 600;
}

code,
.eyebrow,
.section-index,
.surface-label,
.method-kind,
.expansion,
.console-command,
.console-bar,
.vision-status,
.inquiry-classification,
.method-number,
.surface-count {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

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

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 1000;
  padding: 10px 14px;
  border: 1px solid var(--cyan);
  border-radius: 4px;
  background: var(--black);
  color: var(--text);
  transform: translateY(-180%);
  transition: transform var(--motion-fast) var(--ease-enter);
}

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

.world-shell {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: var(--black);
}

#world-canvas {
  width: 100%;
  height: 100%;
  display: block;
  opacity: 1;
  transition: opacity var(--motion-state) var(--ease-standard);
}

.world-fallback {
  position: absolute;
  inset: 0;
  background: var(--carbon);
}

.site-header,
main,
.site-footer {
  position: relative;
  z-index: 2;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  display: grid;
  grid-template-columns: 240px 1fr auto;
  align-items: center;
  height: var(--header-height);
  padding: 0 clamp(20px, 3vw, 48px);
  border-bottom: 1px solid rgba(120, 224, 197, 0.14);
  background: rgba(6, 9, 8, 0.86);
  backdrop-filter: blur(14px);
  z-index: 100;
}

.site-header.is-scrolled {
  background: rgba(6, 9, 8, 0.97);
}

.company-mark {
  width: 214px;
  height: 40px;
  display: flex;
  align-items: center;
}

.company-mark img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
  object-position: left center;
  transition: opacity var(--motion-fast) var(--ease-standard);
}

.company-mark:hover img {
  opacity: 0.86;
}

.primary-navigation {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(18px, 2vw, 32px);
}

.primary-navigation a {
  position: relative;
  padding: 24px 0 22px;
  color: var(--text-soft);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
}

.primary-navigation a::after {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 16px;
  height: 2px;
  background: var(--cyan);
  content: "";
  opacity: 0;
  transform: scaleX(0.5);
  transition: opacity var(--motion-fast) var(--ease-standard),
    transform var(--motion-fast) var(--ease-standard);
}

.primary-navigation a:hover,
.primary-navigation a.is-active {
  color: var(--text);
}

.primary-navigation a:hover::after,
.primary-navigation a.is-active::after {
  opacity: 1;
  transform: scaleX(1);
}

.vision-status {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 11px;
  white-space: nowrap;
}

.vision-status i {
  width: 7px;
  height: 7px;
  border: 1px solid var(--cyan);
  background: var(--cyan);
  transform: rotate(45deg);
}

.vision-status span {
  color: var(--text-soft);
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

.site-progress {
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 2px;
  overflow: hidden;
  pointer-events: none;
}

.site-progress span {
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--cyan), var(--silver) 72%, var(--amber));
  transform: scaleX(var(--page-progress, 0));
  transform-origin: left center;
  will-change: transform;
}

.menu-toggle {
  display: none;
  min-width: 52px;
  min-height: 44px;
  border: 1px solid var(--line-strong);
  border-radius: 0;
  background: var(--graphite);
  cursor: pointer;
}

.menu-toggle:hover {
  border-color: var(--cyan);
  background: var(--surface);
}

.scene-section,
.content-section,
.thesis-band {
  position: relative;
}

.scene-section {
  min-height: 760px;
}

.content-section {
  padding: clamp(104px, 10vw, 152px) 0;
  border-top: 1px solid rgba(120, 224, 197, 0.11);
}

.section-inner {
  width: min(1320px, calc(100% - 64px));
  margin: 0 auto;
}

.section-index,
.eyebrow,
.surface-label,
.method-kind {
  margin-bottom: 18px;
  color: var(--cyan);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.section-index {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-muted);
  letter-spacing: 0.12em;
}

.section-index::before {
  width: 24px;
  height: 1px;
  flex: 0 0 auto;
  background: var(--silver);
  content: "";
  opacity: 0.78;
}

.system-tour {
  position: relative;
  z-index: 3;
  padding: 34px 0 36px;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
  background: rgba(8, 12, 10, 0.98);
}

.system-tour-layout {
  display: grid;
  grid-template-columns: 250px minmax(0, 1fr);
  gap: clamp(36px, 5vw, 72px);
  align-items: stretch;
}

.system-tour-intro {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 8px 0;
}

.system-tour-intro p,
.system-tour-links span {
  margin: 0;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.system-tour-intro h2 {
  max-width: 12ch;
  font-family: var(--font-editorial);
  font-size: 25px;
  font-weight: 400;
  letter-spacing: -0.015em;
  line-height: 1.14;
}

.system-tour-links {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.system-tour-links a {
  position: relative;
  display: grid;
  min-height: 112px;
  align-content: space-between;
  gap: 8px;
  padding: 16px 18px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: inherit;
  text-decoration: none;
}

.system-tour-links a::before {
  position: absolute;
  top: -1px;
  right: -1px;
  left: -1px;
  height: 2px;
  background: var(--cyan);
  content: "";
  opacity: 0;
  transform: scaleX(0.22);
  transform-origin: left center;
  transition: opacity var(--motion-fast) var(--ease-standard),
    transform var(--motion-state) var(--ease-enter);
}

.system-tour-links a:hover,
.system-tour-links a.is-active {
  background: rgba(120, 224, 197, 0.055);
}

.system-tour-links a:hover::before,
.system-tour-links a.is-active::before {
  opacity: 1;
  transform: scaleX(1);
}

.system-tour-links strong,
.system-tour-links small {
  display: block;
}

.system-tour-links strong {
  color: var(--text);
  font-family: var(--font-display);
  font-size: 19px;
  line-height: 1.08;
}

.system-tour-links small {
  color: var(--text-muted);
  font-size: 12px;
  line-height: 1.4;
}

.hero {
  display: flex;
  min-height: 92dvh;
  align-items: center;
  padding: calc(var(--header-height) + 70px) 6vw 96px;
  overflow: hidden;
}

.hero::after {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 58%;
  height: 1px;
  background: var(--cyan-dark);
  content: "";
}

.hero-inner {
  width: min(680px, 54vw);
  margin-left: max(0px, calc((100vw - 1440px) / 2));
}

.kaya-lockup {
  width: min(520px, 85vw);
  aspect-ratio: 1627 / 494;
  margin: 18px 0 22px;
}

.kaya-lockup img {
  width: 100%;
  height: auto;
  display: block;
}

.expansion {
  margin-bottom: 34px;
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
}

.hero-category {
  max-width: 650px;
  margin-bottom: 16px;
  color: var(--text);
  font-family: var(--font-display);
  font-size: 40px;
  font-weight: 400;
  line-height: 1.16;
}

.hero-statement {
  max-width: 630px;
  margin-bottom: 30px;
  color: var(--text-soft);
  font-size: 18px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.button {
  min-height: 46px;
  padding: 12px 18px;
  border: 1px solid transparent;
  border-radius: 4px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  transition: transform 120ms var(--ease-standard);
}

.button:active {
  transform: translateY(1px);
}

.button-primary {
  background: var(--text);
  color: var(--black);
}

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

.button-secondary {
  border-color: var(--line-strong);
  background: rgba(7, 10, 11, 0.84);
  color: var(--text);
}

.button-secondary:hover {
  border-color: var(--cyan);
}

.button-quiet {
  border-color: transparent;
  background: transparent;
  color: var(--text-muted);
}

.button-quiet:hover {
  color: var(--text);
}

.hero-facts {
  display: flex;
  margin: 40px 0 0;
  gap: 28px;
}

.hero-facts div {
  min-width: 120px;
  padding-left: 13px;
  border-left: 1px solid var(--line-strong);
}

.hero-facts dt {
  margin-bottom: 3px;
  font-size: 24px;
  font-weight: 600;
}

.hero-facts dd {
  margin: 0;
  color: var(--text-muted);
  font-size: 12px;
}

.hero-flow {
  position: absolute;
  right: 28px;
  bottom: 32px;
  display: grid;
  width: min(680px, 47vw);
  grid-template-columns: repeat(6, minmax(0, 1fr));
  margin: 0;
  padding: 0;
  list-style: none;
}

.hero-flow li {
  position: relative;
  padding: 14px 8px 0;
  border-top: 1px solid var(--line-strong);
  color: var(--text-muted);
  font-size: 11px;
}

.hero-flow li::before {
  position: absolute;
  top: -4px;
  left: 8px;
  width: 7px;
  height: 7px;
  background: var(--cyan);
  content: "";
  transform: rotate(45deg);
}

.hero-flow span {
  display: block;
  margin-bottom: 3px;
  color: var(--text);
  font-family: var(--font-mono);
}

/* Research-instrument hero: copy and method stay readable above the live scene. */
.hero {
  display: block;
  min-height: max(900px, 100svh);
  padding: calc(var(--header-height) + 44px) 0 52px;
  background:
    linear-gradient(90deg, rgba(6, 9, 8, 0.96) 0%, rgba(6, 9, 8, 0.8) 46%, rgba(6, 9, 8, 0.42) 100%),
    linear-gradient(rgba(120, 224, 197, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120, 224, 197, 0.035) 1px, transparent 1px);
  background-size: auto, 48px 48px, 48px 48px;
}

.hero::after {
  right: 0;
  left: 0;
  width: auto;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan) 0 28%, var(--amber) 28% 38%, var(--line) 38% 100%);
}

.hero-grid {
  position: relative;
  display: grid;
  width: min(1400px, calc(100% - 64px));
  min-height: calc(max(900px, 100svh) - var(--header-height) - 96px);
  grid-template-columns: minmax(0, 1.08fr) minmax(440px, 0.92fr);
  gap: clamp(56px, 7vw, 118px);
  align-items: center;
  margin: 0 auto;
}

.hero-inner {
  width: auto;
  max-width: 720px;
  margin: 0;
}

.kaya-lockup {
  width: min(600px, 100%);
  margin: 20px 0 14px;
}

.expansion {
  margin-bottom: clamp(36px, 5vh, 58px);
  color: var(--text-muted);
  font-size: 12px;
  letter-spacing: 0.16em;
}

.hero-category {
  max-width: 690px;
  margin-bottom: 18px;
  font-family: var(--font-editorial);
  font-size: clamp(38px, 3.4vw, 54px);
  line-height: 1.08;
}

.hero-statement {
  max-width: 650px;
  margin-bottom: 30px;
  color: var(--text-soft);
  font-size: 17px;
  line-height: 1.7;
}

.hero-actions {
  gap: 8px;
}

.button {
  min-height: 48px;
  border-radius: 0;
  touch-action: manipulation;
}

.button-primary {
  border-color: var(--cyan);
  background: var(--cyan);
  color: #07100d;
}

.button-primary:hover {
  border-color: #b0f2df;
  background: #b0f2df;
}

.button-secondary {
  background: rgba(9, 13, 12, 0.72);
}

.hero-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  margin-top: clamp(36px, 5vh, 54px);
  border-top: 1px solid var(--line-strong);
}

.hero-facts div {
  min-width: 0;
  padding: 16px 16px 0 0;
  border-left: 0;
}

.hero-facts div + div {
  padding-left: 16px;
  border-left: 1px solid var(--line);
}

.hero-facts dt {
  color: var(--text);
  font-family: var(--font-display);
  font-size: 32px;
  line-height: 1;
}

.hero-facts dd {
  max-width: 15ch;
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1.45;
  text-transform: uppercase;
}

.hero-instrument {
  position: relative;
  width: 100%;
  max-width: 560px;
  justify-self: end;
  border: 1px solid rgba(120, 224, 197, 0.44);
  background: rgba(8, 13, 11, 0.84);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.36);
  backdrop-filter: blur(12px);
}

.hero-instrument::before,
.hero-instrument::after {
  position: absolute;
  width: 26px;
  height: 26px;
  pointer-events: none;
  content: "";
}

.hero-instrument::before {
  top: -5px;
  left: -5px;
  border-top: 2px solid var(--cyan);
  border-left: 2px solid var(--cyan);
}

.hero-instrument::after {
  right: -5px;
  bottom: -5px;
  border-right: 2px solid var(--amber);
  border-bottom: 2px solid var(--amber);
}

.instrument-topline,
.instrument-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 13px 18px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.instrument-topline {
  border-bottom: 1px solid var(--line);
}

.instrument-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--cyan);
}

.instrument-status i {
  width: 7px;
  height: 7px;
  border: 1px solid currentColor;
  background: currentColor;
  transform: rotate(45deg);
}

.instrument-heading {
  display: grid;
  grid-template-columns: 128px 1fr;
  gap: 20px;
  align-items: end;
  padding: 28px 18px 24px;
  border-bottom: 1px solid var(--line-strong);
}

.instrument-heading p {
  margin: 0 0 5px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
}

.instrument-heading h2 {
  font-size: clamp(36px, 3.6vw, 54px);
  line-height: 0.92;
}

.hero-instrument .hero-flow {
  position: static;
  display: block;
  width: auto;
  margin: 0;
}

.hero-instrument .hero-flow li {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 16px;
  min-height: 63px;
  align-items: center;
  padding: 10px 18px;
  border-top: 0;
  border-bottom: 1px solid var(--line);
  color: var(--text-muted);
}

.hero-instrument .hero-flow li > div {
  transition: transform var(--motion-state) var(--ease-enter);
}

.hero-instrument .hero-flow li::before {
  top: 50%;
  left: 21px;
  width: 6px;
  height: 6px;
  border: 1px solid var(--line-strong);
  background: var(--graphite);
  transform: translateY(-50%) rotate(45deg);
}

.hero-instrument .hero-flow li::after {
  position: absolute;
  top: calc(50% + 6px);
  bottom: calc(-50% + 6px);
  left: 24px;
  width: 1px;
  background: var(--line);
  content: "";
}

.hero-instrument .hero-flow li:last-child::after {
  display: none;
}

.hero-instrument .hero-flow li.is-current {
  background: linear-gradient(90deg, rgba(120, 224, 197, 0.11), transparent 72%);
  color: var(--text);
  box-shadow: inset 3px 0 var(--cyan);
}

.hero-instrument .hero-flow li.is-current > div {
  transform: translateX(4px);
}

.hero-instrument .hero-flow li.is-current::before {
  border-color: var(--cyan);
  background: var(--cyan);
}

.hero-instrument .hero-flow span {
  margin: 0;
  color: var(--text-muted);
  font-size: 10px;
  text-align: right;
}

.hero-instrument .hero-flow strong,
.hero-instrument .hero-flow small {
  display: block;
}

.hero-instrument .hero-flow strong {
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
}

.hero-instrument .hero-flow small {
  margin-top: 2px;
  color: var(--text-muted);
  font-size: 11px;
}

.instrument-footer {
  min-height: 46px;
  color: var(--cyan);
}

.instrument-footer span:last-child {
  color: var(--amber);
}

.thesis-band {
  padding: clamp(112px, 10vw, 156px) 0;
  background: var(--paper);
  color: var(--paper-ink);
}

.thesis-layout {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 24px;
}

.thesis-layout > :first-child {
  grid-column: 1 / 6;
  padding-right: 32px;
}

.thesis-copy {
  grid-column: 6 / 13;
}

.thesis-band .section-index {
  color: #536159;
}

.thesis-band .section-index::before {
  background: var(--paper-ink);
}

.thesis-band h2 {
  font-family: var(--font-editorial);
  font-size: clamp(44px, 4.2vw, 68px);
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 1.02;
}

.thesis-copy > p {
  max-width: 720px;
  margin-bottom: 48px;
  color: #344039;
  font-size: 20px;
  line-height: 1.65;
}

.thesis-principles {
  display: grid;
  gap: 0;
  border-top: 1px solid #9ca89f;
}

.thesis-principles article {
  display: grid;
  grid-template-columns: 230px 1fr;
  gap: 30px;
  padding: 24px 0;
  border-bottom: 1px solid #9ca89f;
}

.thesis-principles strong {
  font-size: 16px;
}

.thesis-principles p {
  margin: 0;
  color: #4d5b53;
}

.section-heading {
  margin-bottom: 72px;
}

.editorial-heading {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  align-items: start;
  gap: 24px;
  padding-top: 24px;
  border-top: 2px solid var(--line-strong);
}

.editorial-heading .section-index {
  grid-column: 1 / 3;
  margin: 7px 0 0;
}

.editorial-heading h2 {
  grid-column: 3 / 9;
  max-width: 760px;
}

.editorial-heading .section-summary {
  grid-column: 9 / 13;
  max-width: 66ch;
  margin: 0;
  padding-left: 24px;
  border-left: 2px solid var(--cyan-dark);
  color: var(--text-soft);
  font-size: 17px;
  line-height: 1.65;
}

.assumption-section {
  background:
    radial-gradient(circle at 86% 18%, rgba(120, 224, 197, 0.07), transparent 30%),
    rgba(6, 10, 8, 0.93);
}

.scenario-switcher {
  display: flex;
  width: fit-content;
  margin-bottom: 24px;
  border: 1px solid var(--line-strong);
  border-radius: 0;
  background: var(--carbon);
}

.scenario-switcher button {
  min-height: 44px;
  padding: 10px 15px;
  border: 0;
  border-right: 1px solid var(--line-strong);
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 13px;
}

.scenario-switcher button:last-child {
  border-right: 0;
}

.scenario-switcher button:hover,
.scenario-switcher button[aria-pressed="true"] {
  background: var(--cyan);
  color: #07100d;
}

.assumption-workbench {
  display: grid;
  grid-template-columns: minmax(300px, 0.7fr) minmax(520px, 1.3fr);
  min-height: 540px;
  border: 1px solid var(--line-strong);
  background: rgba(9, 14, 12, 0.96);
}

.inquiry-surface,
.claim-surface {
  padding: 38px;
}

.inquiry-surface {
  border-right: 1px solid var(--line-strong);
  background: linear-gradient(150deg, rgba(120, 224, 197, 0.08), transparent 54%);
}

.inquiry-surface blockquote {
  margin-bottom: 30px;
  color: var(--text);
  font-family: var(--font-editorial);
  font-size: clamp(27px, 2.2vw, 35px);
  line-height: 1.38;
}

.inquiry-classification {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}

.inquiry-classification span {
  padding: 7px 9px;
  border: 1px solid var(--line);
  border-radius: 0;
  color: var(--text-muted);
  font-size: 11px;
}

.inquiry-decision {
  margin: 0;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  color: var(--text-soft);
}

.surface-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
}

.surface-count {
  color: var(--text-muted);
  font-size: 12px;
}

.assumption-list {
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}

.assumption-item {
  display: grid;
  grid-template-columns: 14px minmax(0, 1fr) auto;
  gap: 14px;
  align-items: start;
  padding: 18px 0;
  border-top: 1px solid var(--line);
}

.assumption-item:first-child {
  border-top-color: var(--line-strong);
}

.claim-symbol {
  width: 10px;
  height: 10px;
  margin-top: 6px;
  border: 1px solid currentColor;
  transform: rotate(45deg);
}

.assumption-item strong {
  display: block;
  margin-bottom: 5px;
  font-size: 15px;
}

.assumption-item p {
  margin: 0;
  color: var(--text-muted);
  font-size: 13px;
  overflow-wrap: anywhere;
}

.claim-status {
  padding: 5px 7px;
  border: 1px solid currentColor;
  border-radius: 0;
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
  white-space: nowrap;
}

.assumption-item[data-state="supported"],
[data-claim-state="supported"] { color: var(--green); }
.assumption-item[data-state="contested"],
[data-claim-state="contested"] { color: var(--amber); }
.assumption-item[data-state="refuted"],
[data-claim-state="refuted"] { color: var(--red); }
.assumption-item[data-state="unknown"],
[data-claim-state="unknown"] { color: var(--text-muted); }
.assumption-item[data-state="observed"],
[data-claim-state="observed"] { color: var(--blue); }
.assumption-item[data-state="stale"],
[data-claim-state="stale"] { color: var(--violet); }
.assumption-item[data-state="bounded"],
[data-claim-state="bounded"] { color: var(--cyan); }

.claim-state-rail {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 26px;
}

.claim-state-rail span {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
}

.claim-state-rail span::before {
  width: 7px;
  height: 7px;
  border: 1px solid currentColor;
  content: "";
  transform: rotate(45deg);
}

.methods-section {
  background:
    linear-gradient(180deg, rgba(120, 224, 197, 0.025), transparent 18%),
    rgba(9, 13, 12, 0.96);
}

.method-kinds {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-bottom: 58px;
  border: 1px solid var(--line-strong);
  background: rgba(6, 9, 8, 0.72);
}

.method-kinds div {
  padding: 24px 20px;
  border-right: 1px solid var(--line);
}

.method-kinds div:last-child {
  border-right: 0;
}

.method-kinds strong,
.method-kinds span,
.method-kinds small {
  display: block;
}

.method-kinds strong {
  margin-bottom: 12px;
  color: var(--cyan);
  font-family: var(--font-display);
  font-size: 42px;
  line-height: 0.9;
}

.method-kinds span {
  margin-bottom: 5px;
  font-weight: 600;
}

.method-kinds small {
  color: var(--text-muted);
  animation: state-enter var(--motion-state) var(--ease-enter) both;
}

.assumption-item:nth-child(2) { animation-delay: 30ms; }
.assumption-item:nth-child(3) { animation-delay: 60ms; }
.assumption-item:nth-child(4) { animation-delay: 90ms; }
.assumption-item:nth-child(5) { animation-delay: 120ms; }

.method-explorer {
  display: grid;
  grid-template-columns: 285px minmax(0, 1fr);
  min-height: 830px;
  border: 1px solid var(--line-strong);
  background: rgba(6, 9, 8, 0.46);
}

.method-navigation {
  padding: 28px 22px;
  border-right: 1px solid var(--line-strong);
}

.method-navigation > label {
  display: block;
  margin-bottom: 16px;
  color: var(--text-muted);
  font-size: 12px;
}

#method-select {
  display: none;
}

.method-buttons {
  display: grid;
}

.method-button {
  display: grid;
  grid-template-columns: 29px 1fr;
  min-height: 52px;
  align-items: center;
  padding: 8px 10px;
  border: 0;
  border-top: 1px solid var(--line);
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  text-align: left;
}

.method-button:last-child {
  border-bottom: 1px solid var(--line);
}

.method-button span {
  font-family: var(--font-mono);
  font-size: 10px;
}

.method-button strong {
  font-size: 13px;
  font-weight: 600;
}

.method-button:hover,
.method-button.is-active {
  background: rgba(120, 224, 197, 0.1);
  color: var(--text);
}

.method-button.is-active {
  box-shadow: inset 2px 0 var(--cyan);
}

.method-detail {
  padding: 48px;
}

.method-detail-heading {
  display: flex;
  justify-content: space-between;
  gap: 30px;
}

.method-detail-heading h3 {
  font-family: var(--font-display);
  font-size: clamp(44px, 4vw, 64px);
  letter-spacing: -0.02em;
}

.method-number {
  color: var(--line-strong);
  font-size: 76px;
  line-height: 1;
}

.method-summary {
  max-width: 830px;
  margin: 26px 0 30px;
  color: var(--text-soft);
  font-size: 19px;
  line-height: 1.65;
}

.method-power {
  display: grid;
  grid-template-columns: 120px 1fr;
  max-width: 980px;
  padding: 22px 0;
  border-top: 2px solid var(--cyan-dark);
  border-bottom: 1px solid var(--line-strong);
}

.method-power span {
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 12px;
  text-transform: uppercase;
}

.method-power p {
  margin: 0;
  color: var(--text);
  font-size: 18px;
}

.method-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  max-width: 980px;
  margin: 30px 0 40px;
  border-top: 1px solid var(--line);
}

.method-facts div {
  min-height: 130px;
  padding: 20px 22px 20px 0;
  border-bottom: 1px solid var(--line);
}

.method-facts div:nth-child(odd) {
  padding-right: 30px;
  border-right: 1px solid var(--line);
}

.method-facts div:nth-child(even) {
  padding-left: 30px;
}

.method-facts span {
  display: block;
  margin-bottom: 8px;
  color: var(--text-muted);
  font-size: 11px;
  text-transform: uppercase;
}

.method-facts p {
  margin: 0;
  color: var(--text-soft);
  overflow-wrap: anywhere;
}

.method-lifecycle {
  max-width: 980px;
}

.method-lifecycle h4 {
  font-size: 20px;
}

.method-lifecycle ol {
  display: flex;
  flex-wrap: wrap;
  margin: 25px 0 0;
  padding: 0;
  list-style: none;
}

.method-lifecycle li {
  position: relative;
  flex: 1 1 150px;
  min-height: 76px;
  padding: 19px 13px 13px;
  border-top: 1px solid var(--line-strong);
  color: var(--text-soft);
  font-size: 12px;
  animation: state-enter var(--motion-state) var(--ease-enter) both;
}

.method-lifecycle li:nth-child(2) { animation-delay: 30ms; }
.method-lifecycle li:nth-child(3) { animation-delay: 60ms; }
.method-lifecycle li:nth-child(4) { animation-delay: 90ms; }
.method-lifecycle li:nth-child(5) { animation-delay: 120ms; }
.method-lifecycle li:nth-child(6) { animation-delay: 150ms; }

.method-lifecycle li::before {
  position: absolute;
  top: -4px;
  left: 13px;
  width: 7px;
  height: 7px;
  background: var(--cyan);
  content: "";
  transform: rotate(45deg);
}

.method-lifecycle li span {
  display: block;
  margin-bottom: 4px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 9px;
}

.method-navigation-actions {
  display: flex;
  justify-content: space-between;
  max-width: 980px;
  margin-top: 30px;
}

.method-navigation-actions button {
  min-height: 44px;
  padding: 9px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 0;
  background: transparent;
  color: var(--text-soft);
  cursor: pointer;
}

.method-navigation-actions button:hover {
  border-color: var(--cyan);
  color: var(--text);
}

.execution-protocol {
  margin-top: clamp(88px, 10vw, 144px);
  padding-top: clamp(66px, 7vw, 96px);
  border-top: 1px solid var(--line-strong);
}

.execution-protocol-heading {
  display: grid;
  grid-template-columns: minmax(190px, 0.58fr) minmax(0, 1.75fr);
  gap: clamp(34px, 6vw, 90px);
  align-items: start;
}

.execution-protocol-index {
  padding: 10px 0 14px 16px;
  border-left: 2px solid var(--cyan);
}

.execution-protocol-index span,
.execution-protocol-index strong {
  display: block;
}

.execution-protocol-index span {
  margin-bottom: 8px;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.execution-protocol-index strong {
  max-width: 16ch;
  color: var(--text-soft);
  font-size: 14px;
  line-height: 1.35;
}

.execution-protocol-heading .section-index {
  margin-bottom: 26px;
}

.execution-protocol-heading h3 {
  max-width: 900px;
  font-family: var(--font-display);
  font-size: clamp(42px, 4.6vw, 66px);
  letter-spacing: -0.02em;
  line-height: 0.98;
}

.execution-protocol-heading > div:last-child > p:last-child {
  max-width: 850px;
  margin: 30px 0 0;
  color: var(--text-soft);
  font-size: 18px;
  line-height: 1.7;
}

.execution-contract {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 60px 0 0;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
}

.execution-contract > div {
  min-width: 0;
  min-height: 112px;
  padding: 22px 22px 20px 0;
  border-right: 1px solid var(--line);
}

.execution-contract > div:not(:first-child) {
  padding-left: 22px;
}

.execution-contract > div:last-child {
  border-right: 0;
}

.execution-contract dt,
.execution-handoff dt,
.execution-role-heading span,
.execution-roles dt,
.execution-human-gate span,
.execution-status span,
.execution-ledger-heading > span,
.execution-event > span,
.execution-event small {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

.execution-contract dt,
.execution-handoff dt,
.execution-roles dt {
  margin-bottom: 7px;
  color: var(--text-muted);
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.execution-contract dd,
.execution-handoff dd,
.execution-roles dd {
  margin: 0;
  overflow-wrap: anywhere;
}

.execution-contract dd {
  color: var(--text-soft);
  font-size: 13px;
  line-height: 1.5;
}

.execution-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  margin-top: 38px;
}

.execution-status {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 14px;
}

.execution-status span {
  color: var(--cyan);
  font-size: 11px;
}

.execution-status strong {
  font-size: 14px;
  font-weight: 600;
}

.execution-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.execution-demo-note {
  display: flex;
  gap: 12px;
  margin: 20px 0 18px;
  color: var(--text-muted);
  font-size: 12px;
  line-height: 1.55;
}

.execution-demo-note span {
  flex: 0 0 auto;
  color: var(--amber);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.execution-board {
  --execution-accent: var(--cyan);
  --execution-progress: 0;
  position: relative;
  border: 1px solid var(--line-strong);
  background:
    linear-gradient(rgba(120, 224, 197, 0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120, 224, 197, 0.014) 1px, transparent 1px),
    rgba(5, 8, 7, 0.93);
  background-size: 34px 34px, 34px 34px, auto;
  box-shadow: 0 28px 90px rgba(0, 0, 0, 0.22);
  isolation: isolate;
}

.execution-board::before {
  position: absolute;
  z-index: 4;
  top: -1px;
  left: -1px;
  width: calc(100% + 2px);
  height: 2px;
  background: linear-gradient(90deg, var(--amber), var(--cyan), var(--green));
  content: "";
  transform: scaleX(var(--execution-progress));
  transform-origin: left center;
  transition: transform 520ms var(--ease-enter);
}

.execution-board[data-result="refuted"] {
  --execution-accent: var(--red);
}

.execution-board[data-result="confirmed"],
.execution-board[data-result="owner"] {
  --execution-accent: var(--green);
}

.execution-board[data-result="candidate"],
.execution-board[data-result="rework"] {
  --execution-accent: var(--amber);
}

.execution-roles {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 0;
  padding: 0;
  border-bottom: 1px solid var(--line-strong);
  list-style: none;
}

.execution-roles > li {
  --role-accent: var(--cyan);
  position: relative;
  min-width: 0;
  min-height: 310px;
  padding: 30px 28px 26px;
  border-right: 1px solid var(--line-strong);
  background: rgba(8, 12, 11, 0.78);
}

.execution-roles > li:last-child {
  border-right: 0;
}

.execution-roles > li[data-execution-role="executor"] {
  --role-accent: var(--amber);
}

.execution-roles > li[data-execution-role="validator"] {
  --role-accent: var(--violet);
}

.execution-roles > li:not(:last-child)::after {
  position: absolute;
  z-index: 2;
  top: 36px;
  right: -7px;
  width: 12px;
  height: 12px;
  border-top: 1px solid var(--line-strong);
  border-right: 1px solid var(--line-strong);
  background: var(--carbon);
  content: "";
  transform: rotate(45deg);
}

.execution-board[data-active-role="orchestrator"] [data-execution-role="orchestrator"],
.execution-board[data-active-role="executor"] [data-execution-role="executor"],
.execution-board[data-active-role="validator"] [data-execution-role="validator"] {
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--role-accent) 9%, transparent), transparent 72%),
    rgba(8, 12, 11, 0.92);
  box-shadow: inset 0 3px var(--role-accent);
}

.execution-role-heading {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 18px;
}

.execution-role-heading span {
  color: var(--role-accent);
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.execution-role-heading h4 {
  font-family: var(--font-display);
  font-size: clamp(27px, 2.4vw, 36px);
  line-height: 0.98;
  text-align: right;
}

.execution-roles > li > p:not(.execution-role-state) {
  min-height: 82px;
  margin: 36px 0 26px;
  color: var(--text-soft);
  font-size: 14px;
  line-height: 1.6;
}

.execution-roles dl {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 0;
  border-top: 1px solid var(--line);
}

.execution-roles dl > div {
  min-width: 0;
  padding: 16px 12px 0 0;
}

.execution-roles dl > div + div {
  padding-left: 14px;
  border-left: 1px solid var(--line);
}

.execution-roles dd {
  color: var(--text-muted);
  font-size: 11px;
  line-height: 1.5;
}

.execution-role-state {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 22px 0 0;
  color: var(--text-muted);
  font-size: 11px;
}

.execution-role-state i {
  width: 7px;
  height: 7px;
  flex: 0 0 auto;
  border: 1px solid var(--role-accent);
  transform: rotate(45deg);
}

.execution-roles > li.is-active .execution-role-state {
  color: var(--text);
}

.execution-roles > li.is-active .execution-role-state i {
  background: var(--role-accent);
  box-shadow: 0 0 14px color-mix(in srgb, var(--role-accent) 54%, transparent);
}

.execution-workflow {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(360px, 0.88fr);
  min-height: 500px;
}

.execution-handoff {
  min-width: 0;
  padding: clamp(36px, 5vw, 68px);
  border-top: 2px solid var(--execution-accent);
  background: rgba(6, 10, 9, 0.7);
}

.execution-handoff > .surface-label {
  margin-bottom: 20px;
  color: var(--execution-accent);
}

.execution-handoff > h4 {
  max-width: 720px;
  font-family: var(--font-editorial);
  font-size: clamp(32px, 3.2vw, 47px);
  font-weight: 400;
  line-height: 1.08;
}

.execution-handoff > h4 + p {
  max-width: 720px;
  margin: 28px 0 0;
  color: var(--text-soft);
  font-size: 16px;
  line-height: 1.75;
}

.execution-handoff dl {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  max-width: 740px;
  margin: 44px 0 0;
  border-top: 1px solid var(--line-strong);
}

.execution-handoff dl > div {
  min-width: 0;
  padding: 20px 22px 0 0;
}

.execution-handoff dl > div + div {
  padding-left: 24px;
  border-left: 1px solid var(--line);
}

.execution-handoff dd {
  color: var(--text-soft);
  font-size: 13px;
  line-height: 1.6;
}

.execution-ledger {
  min-width: 0;
  padding: 30px 26px 26px;
  border-left: 1px solid var(--line-strong);
  background: rgba(3, 6, 6, 0.86);
}

.execution-ledger-heading {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 18px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line-strong);
}

.execution-ledger-heading .surface-label {
  margin-bottom: 7px;
}

.execution-ledger-heading h4 {
  font-size: 17px;
}

.execution-ledger-heading > span {
  color: var(--text-muted);
  font-size: 9px;
  white-space: nowrap;
}

.execution-ledger ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

.execution-event {
  position: relative;
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  min-height: 56px;
  align-items: center;
  padding: 9px 8px;
  border-bottom: 1px solid var(--line);
  opacity: 0.38;
  overflow-wrap: anywhere;
  transition: opacity var(--motion-fast) var(--ease-standard),
    transform var(--motion-fast) var(--ease-enter);
}

.execution-event::before {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 19px;
  width: 1px;
  background: var(--line);
  content: "";
}

.execution-event > span {
  z-index: 1;
  display: grid;
  width: 23px;
  height: 23px;
  place-items: center;
  border: 1px solid var(--line-strong);
  background: var(--carbon);
  color: var(--text-muted);
  font-size: 8px;
}

.execution-event > div {
  min-width: 0;
}

.execution-event small,
.execution-event strong {
  display: block;
}

.execution-event small {
  margin-bottom: 2px;
  color: var(--text-muted);
  font-size: 8px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.execution-event strong {
  color: var(--text-soft);
  font-size: 11px;
  font-weight: 600;
  line-height: 1.35;
}

.execution-event.is-reached {
  opacity: 0.76;
}

.execution-event.is-current {
  background: color-mix(in srgb, var(--execution-accent) 9%, transparent);
  opacity: 1;
  transform: translateX(4px);
}

.execution-event.is-current > span {
  border-color: var(--execution-accent);
  color: var(--text);
}

.execution-event[data-result="refuted"].is-reached > span {
  border-color: var(--red);
}

.execution-event[data-result="confirmed"].is-reached > span,
.execution-event[data-result="owner"].is-reached > span {
  border-color: var(--green);
}

.execution-human-gate {
  display: grid;
  grid-template-columns: minmax(210px, 0.7fr) minmax(0, 1.45fr) auto;
  gap: 28px;
  align-items: center;
  min-height: 108px;
  padding: 24px 28px;
  border-top: 1px solid var(--line-strong);
  background: rgba(9, 13, 12, 0.96);
}

.execution-human-gate > div > span,
.execution-gate-state {
  color: var(--amber);
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.execution-human-gate strong {
  display: block;
  margin-top: 5px;
  font-size: 17px;
}

.execution-human-gate p {
  margin: 0;
  color: var(--text-muted);
  font-size: 12px;
  line-height: 1.55;
}

.execution-gate-state {
  min-width: 112px;
  padding: 9px 12px;
  border: 1px solid var(--amber);
  text-align: center;
}

.execution-human-gate.is-ready .execution-gate-state {
  border-color: var(--green);
  color: var(--green);
}

.execution-board.is-paused::after {
  position: absolute;
  z-index: 6;
  top: 14px;
  right: 14px;
  padding: 6px 9px;
  border: 1px solid var(--amber);
  background: var(--black);
  color: var(--amber);
  content: "Playback paused";
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.operation-section {
  --operation-panel: rgba(7, 11, 12, 0.97);
  --operation-panel-raised: rgba(12, 18, 19, 0.98);
  background:
    radial-gradient(circle at 14% 68%, rgba(242, 195, 107, 0.07), transparent 30%),
    radial-gradient(circle at 86% 32%, rgba(120, 224, 197, 0.055), transparent 26%),
    rgba(5, 8, 7, 0.94);
  overflow: clip;
}

.operation-controls {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 14px;
}

.operation-control-field {
  display: grid;
  gap: 8px;
}

.operation-control-field label {
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.operation-controls select,
#method-select {
  min-height: 46px;
  padding: 10px 38px 10px 13px;
  border: 1px solid var(--line-strong);
  border-radius: 0;
  background: var(--graphite);
}

.operation-controls select:hover,
#method-select:hover {
  border-color: var(--cyan);
}

.operation-controls select {
  min-width: min(440px, 46vw);
}

.operation-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.operation-demo-note {
  display: flex;
  gap: 12px;
  margin: 0 0 22px;
  color: var(--text-muted);
  font-size: 12px;
  line-height: 1.55;
}

.operation-demo-note span {
  flex: 0 0 auto;
  color: var(--amber);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.cli-demo {
  --demo-progress: 0;
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(500px, 0.92fr);
  border: 1px solid var(--line-strong);
  background: var(--operation-panel);
  box-shadow: 0 28px 90px rgba(0, 0, 0, 0.24);
  isolation: isolate;
  scroll-margin-top: calc(var(--header-height) + 14px);
}

.cli-demo::before {
  position: absolute;
  z-index: 5;
  top: -1px;
  left: -1px;
  width: calc(100% + 2px);
  height: 2px;
  background: linear-gradient(90deg, var(--amber), var(--cyan));
  box-shadow: 0 0 18px rgba(120, 224, 197, 0.28);
  content: "";
  transform: scaleX(var(--demo-progress));
  transform-origin: left center;
  transition: transform 520ms var(--ease-enter);
}

.cli-terminal {
  display: flex;
  min-width: 0;
  min-height: 720px;
  flex-direction: column;
  border-right: 1px solid var(--line-strong);
  background:
    linear-gradient(rgba(120, 224, 197, 0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120, 224, 197, 0.012) 1px, transparent 1px),
    rgba(2, 5, 6, 0.985);
  background-size: 100% 32px, 32px 100%, auto;
}

.terminal-chrome,
.cli-terminal-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  min-height: 46px;
  padding: 0 18px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.04em;
}

.terminal-chrome {
  justify-content: flex-start;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.018);
}

.terminal-dots {
  display: flex;
  gap: 6px;
  margin-right: 4px;
}

.terminal-dots i {
  display: block;
  width: 6px;
  height: 6px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
}

#operation-state {
  margin-left: auto;
  color: var(--cyan);
  text-align: right;
}

.cli-terminal-body {
  display: flex;
  min-height: 0;
  flex: 1;
  flex-direction: column;
  padding: 26px 22px 16px;
}

.cli-prompt {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  min-height: 74px;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(72, 89, 82, 0.48);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.65;
}

.cli-prompt-prefix {
  flex: 0 0 auto;
  color: var(--cyan);
}

.cli-command {
  min-width: 0;
  flex: 1 1 auto;
  color: var(--text);
  overflow-wrap: anywhere;
}

.cli-prompt code {
  color: var(--text);
  overflow-wrap: anywhere;
  white-space: pre-wrap;
}

.typing-cursor {
  display: inline-block;
  width: 7px;
  height: 1.2em;
  flex: 0 0 auto;
  margin-top: 2px;
  margin-left: 3px;
  background: var(--amber);
  vertical-align: -0.12em;
  animation: cursor-blink 920ms steps(1, end) infinite;
}

.cli-demo.is-paused .typing-cursor {
  animation-play-state: paused;
}

.cli-demo.is-complete .typing-cursor {
  opacity: 0;
  animation: none;
}

.cli-transcript {
  display: flex;
  min-height: 0;
  flex: 1;
  flex-direction: column;
  gap: 0;
  margin: 0;
  padding: 14px 4px 10px 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  list-style: none;
  scrollbar-color: var(--line-strong) transparent;
  scrollbar-width: thin;
}

.cli-line {
  display: grid;
  grid-template-columns: 26px minmax(120px, 0.38fr) minmax(0, 1fr);
  gap: 10px;
  padding: 7px 0;
  border-bottom: 1px solid rgba(40, 51, 47, 0.34);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.5;
  animation: cli-line-enter 320ms var(--ease-enter) both;
}

.cli-line-index {
  color: #53605b;
}

.cli-line-prefix {
  color: var(--text-soft);
  font-size: inherit;
  overflow-wrap: anywhere;
}

.cli-line > span:last-child {
  overflow-wrap: anywhere;
}

.cli-line[data-tone="verified"] .cli-line-prefix {
  color: var(--cyan);
}

.cli-line[data-tone="method"] .cli-line-prefix {
  color: var(--violet);
}

.cli-line[data-tone="caution"] .cli-line-prefix {
  color: var(--amber);
}

.cli-line[data-tone="critical"] .cli-line-prefix {
  color: var(--red);
}

.cli-terminal-footer {
  min-height: 58px;
  border-top: 1px solid var(--line);
  line-height: 1.4;
}

#operation-event {
  color: var(--text-soft);
}

#operation-progress {
  flex: 0 0 auto;
  color: var(--amber);
}

.reasoning-stage {
  display: grid;
  min-width: 0;
  min-height: 720px;
  grid-template-columns: 146px minmax(0, 1fr);
  grid-template-rows: auto minmax(0, 1fr);
  background: var(--operation-panel-raised);
  scroll-margin-top: calc(var(--header-height) + 14px);
}

.reasoning-heading {
  display: flex;
  grid-column: 1 / -1;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 76px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--line-strong);
}

.reasoning-heading h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 23px;
  line-height: 1;
}

.reasoning-heading .surface-label {
  margin-bottom: 5px;
}

#reasoning-stage-state {
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.phase-rail {
  min-width: 0;
  margin: 0;
  padding: 0;
  border-right: 1px solid var(--line-strong);
  overflow-y: auto;
  list-style: none;
}

.phase-trigger {
  position: relative;
  display: grid;
  width: 100%;
  min-height: 82px;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 3px 8px;
  align-content: center;
  padding: 12px 12px 12px 16px;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: transparent;
  color: #65726c;
  text-align: left;
}

.phase-trigger::before {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 2px;
  background: transparent;
  content: "";
}

.phase-trigger:disabled {
  cursor: not-allowed;
  opacity: 0.58;
}

.phase-trigger.is-reached:not(:disabled) {
  color: var(--text-muted);
  cursor: pointer;
}

.phase-trigger.is-reached:not(:disabled):hover {
  background: rgba(120, 224, 197, 0.035);
  color: var(--text);
}

.phase-trigger.is-active {
  background: rgba(120, 224, 197, 0.055);
  color: var(--text);
}

.phase-trigger.is-active::before {
  background: var(--cyan);
}

.phase-trigger.is-current::before {
  background: var(--amber);
}

.phase-index {
  grid-row: 1 / 3;
  color: inherit;
  font-family: var(--font-mono);
  font-size: 10px;
}

.phase-name {
  color: var(--text-soft);
  font-size: 11px;
  font-weight: 600;
}

.phase-state {
  color: inherit;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.phase-detail {
  min-width: 0;
  padding: 28px;
  overflow-y: auto;
  scrollbar-color: var(--line-strong) transparent;
  scrollbar-width: thin;
}

.phase-detail-header {
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

.phase-eyebrow {
  margin: 0 0 10px;
  color: var(--amber);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.phase-detail h4 {
  max-width: 22ch;
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(25px, 2.25vw, 36px);
  font-weight: 600;
  line-height: 1.02;
  letter-spacing: -0.025em;
}

#phase-summary {
  max-width: 62ch;
  margin: 16px 0 0;
  color: var(--text-muted);
  font-size: 12px;
  line-height: 1.65;
}

.phase-artifacts {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 10px 0 0;
  list-style: none;
}

.phase-artifact {
  position: relative;
  padding: 16px 0 16px 13px;
  border-bottom: 1px solid var(--line);
  animation: artifact-enter 360ms var(--ease-enter) both;
}

.phase-artifact::before {
  position: absolute;
  top: 19px;
  bottom: 19px;
  left: 0;
  width: 2px;
  background: var(--line-strong);
  content: "";
}

.phase-artifact[data-state="supported"]::before,
.phase-artifact[data-state="bounded"]::before,
.phase-artifact[data-state="sealed"]::before,
.phase-artifact[data-state="fresh-target"]::before {
  background: var(--cyan);
}

.phase-artifact[data-state="root"]::before,
.phase-artifact[data-state="embedded"]::before,
.phase-artifact[data-state="review"]::before,
.phase-artifact[data-state="independent"]::before {
  background: var(--violet);
}

.phase-artifact[data-state="critical"]::before,
.phase-artifact[data-state="refuted"]::before,
.phase-artifact[data-state="locked"]::before {
  background: var(--red);
}

.phase-artifact[data-state="high"]::before,
.phase-artifact[data-state="material"]::before,
.phase-artifact[data-state="contested"]::before,
.phase-artifact[data-state="gate"]::before {
  background: var(--amber);
}

.artifact-topline {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 7px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.055em;
  text-transform: uppercase;
}

.artifact-topline span:last-child {
  flex: 0 0 auto;
  color: var(--text-soft);
}

.phase-artifact strong {
  display: block;
  color: var(--text);
  font-size: 13px;
  line-height: 1.35;
}

.phase-artifact p {
  margin: 6px 0 0;
  color: var(--text-muted);
  font-size: 11px;
  line-height: 1.55;
}

.phase-artifact:nth-child(2) { animation-delay: 45ms; }
.phase-artifact:nth-child(3) { animation-delay: 90ms; }
.phase-artifact:nth-child(4) { animation-delay: 135ms; }
.phase-artifact:nth-child(5) { animation-delay: 180ms; }

.phase-boundary {
  margin: 22px 0 0;
  padding: 14px 15px;
  border-left: 2px solid var(--amber);
  background: rgba(242, 195, 107, 0.045);
  color: var(--text-soft);
  font-size: 10px;
  line-height: 1.55;
}

.operation-outcome-band {
  display: grid;
  grid-template-columns: 1fr 1fr 1.15fr;
  margin-top: -1px;
  border: 1px solid var(--line-strong);
  background: rgba(7, 10, 11, 0.96);
}

.operation-outcome-band > div {
  min-width: 0;
  padding: 22px 24px;
  border-right: 1px solid var(--line-strong);
}

.operation-outcome-band > div:last-child {
  border-right: 0;
}

.operation-outcome-band span,
.operation-outcome-band strong {
  display: block;
}

.operation-outcome-band span {
  margin-bottom: 7px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.operation-outcome-band strong {
  color: var(--text-soft);
  font-size: 13px;
  line-height: 1.4;
}

.human-gate {
  position: relative;
}

.human-gate::before {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--amber), transparent);
  opacity: 0.65;
  content: "";
}

.operation-outcome-band .human-gate strong {
  color: var(--amber);
  font-family: var(--font-display);
  font-size: 22px;
  line-height: 1;
}

.human-gate p {
  margin: 8px 0 0;
  color: var(--text-muted);
  font-size: 10px;
  line-height: 1.55;
}

.cli-demo.is-paused::after {
  position: absolute;
  z-index: 7;
  top: 16px;
  left: 50%;
  padding: 6px 9px;
  border: 1px solid var(--amber);
  background: var(--graphite);
  color: var(--amber);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transform: translateX(-50%);
  content: "Playback paused";
}

@keyframes cursor-blink {
  0%, 46% { opacity: 1; }
  47%, 100% { opacity: 0; }
}

@keyframes cli-line-enter {
  from { opacity: 0; transform: translateY(7px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes artifact-enter {
  from { opacity: 0; transform: translateX(8px); }
  to { opacity: 1; transform: translateX(0); }
}

.runtime-section {
  background:
    linear-gradient(90deg, transparent 0 49.95%, rgba(120, 224, 197, 0.035) 50%, transparent 50.05%),
    rgba(10, 15, 13, 0.96);
}

.environment-equation {
  display: flex;
  align-items: center;
  gap: 13px;
  margin-bottom: 45px;
  padding: 24px 0;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
  overflow-x: auto;
}

.environment-equation span,
.environment-equation strong {
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 0;
  white-space: nowrap;
}

.environment-equation i {
  color: var(--text-muted);
  font-style: normal;
}

.environment-equation strong {
  margin-left: auto;
  border-color: var(--cyan);
  color: var(--cyan);
}

.runtime-layers {
  display: block;
  border-top: 1px solid var(--line-strong);
}

.runtime-layers article {
  position: relative;
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 24px;
  min-height: 124px;
  padding: 26px 0;
  border-bottom: 1px solid var(--line);
}

.runtime-layers article::before {
  position: absolute;
  top: 18px;
  bottom: 18px;
  left: 0;
  width: 2px;
  background: var(--cyan);
  content: "";
  opacity: 0;
  transform: scaleY(0.2);
  transition: opacity var(--motion-fast) var(--ease-standard),
    transform var(--motion-state) var(--ease-enter);
}

.runtime-layers article:hover {
  background: rgba(120, 224, 197, 0.045);
}

.runtime-layers article:hover::before {
  opacity: 1;
  transform: scaleY(1);
}

.runtime-layers article > div {
  display: grid;
  grid-template-columns: minmax(240px, 0.42fr) minmax(0, 0.58fr);
  gap: 48px;
  align-items: baseline;
  transition: transform var(--motion-state) var(--ease-enter);
}

.runtime-layers article:hover > div {
  transform: translateX(8px);
}

.runtime-layers article > span {
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 11px;
}

.runtime-layers h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 25px;
}

.runtime-layers p {
  max-width: 66ch;
  margin: 0;
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.6;
}

.context-comparison {
  display: grid;
  grid-template-columns: 1fr 140px 1fr;
  align-items: center;
  margin-top: 58px;
  padding: 42px 0;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
  background: transparent;
}

.context-comparison span,
.context-comparison strong {
  display: block;
}

.context-comparison span {
  margin-bottom: 9px;
  color: var(--text-muted);
  font-size: 11px;
  text-transform: uppercase;
}

.context-comparison strong {
  margin-bottom: 8px;
  font-size: 18px;
}

.context-comparison p {
  margin: 0;
  color: var(--text-muted);
  font-size: 13px;
}

.context-aperture {
  position: relative;
  width: 82px;
  height: 82px;
  margin: 0 auto;
  border: 1px solid var(--cyan-dark);
  transform: rotate(45deg);
}

.context-aperture i {
  position: absolute;
  width: 50%;
  height: 50%;
  border: 1px solid var(--line-strong);
}

.context-aperture i:nth-child(1) { top: 0; left: 0; }
.context-aperture i:nth-child(2) { top: 0; right: 0; }
.context-aperture i:nth-child(3) { bottom: 0; left: 0; }
.context-aperture i:nth-child(4) { right: 0; bottom: 0; }

.learning-section {
  background: rgba(6, 10, 8, 0.95);
}

.learning-layout {
  display: grid;
  grid-template-columns: minmax(360px, 0.78fr) minmax(520px, 1.22fr);
  gap: 90px;
}

.learning-lead {
  max-width: 620px;
  margin-top: 32px;
  color: var(--text-soft);
  font-size: 18px;
  line-height: 1.7;
}

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

.learning-loop li {
  display: grid;
  grid-template-columns: 45px 180px 1fr;
  gap: 16px;
  align-items: baseline;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.learning-loop li > span {
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 11px;
}

.learning-loop strong {
  font-family: var(--font-display);
  font-size: 20px;
}

.learning-loop p {
  margin: 0;
  color: var(--text-muted);
  font-size: 13px;
}

.learning-nonclaim {
  grid-column: 2;
  padding: 24px 0 0;
  border-top: 1px solid var(--red);
}

.learning-nonclaim strong {
  display: block;
  margin-bottom: 8px;
  color: var(--red);
  font-size: 18px;
}

.learning-nonclaim p {
  margin: 0;
  color: var(--text-muted);
}

.company-section {
  background:
    linear-gradient(145deg, rgba(120, 224, 197, 0.035), transparent 42%),
    rgba(5, 8, 7, 0.97);
}

.company-identity {
  display: grid;
  grid-template-columns: minmax(360px, 0.72fr) minmax(520px, 1.28fr);
  align-items: center;
  gap: 80px;
  margin-bottom: 90px;
}

.company-identity > img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: contain;
  object-position: left center;
}

.company-identity h2 {
  margin-bottom: 28px;
}

.company-identity p:last-child {
  max-width: 720px;
  margin: 0;
  color: var(--text-soft);
  font-size: 18px;
}

.company-case {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line-strong);
}

.company-case article {
  display: grid;
  grid-template-columns: 108px minmax(0, 1fr);
  grid-template-rows: auto 1fr;
  column-gap: 24px;
  min-height: 220px;
  padding: 32px 32px 32px 0;
  border-bottom: 1px solid var(--line);
}

.company-case article:nth-child(odd) {
  border-right: 1px solid var(--line);
}

.company-case article:nth-child(even) {
  padding-right: 0;
  padding-left: 32px;
}

.company-case span {
  grid-row: 1 / 3;
  margin: 4px 0 0;
  color: var(--cyan);
  font-size: 11px;
  text-transform: uppercase;
}

.company-case h3 {
  max-width: 440px;
  margin-bottom: 16px;
  font-family: var(--font-display);
  font-size: 26px;
  line-height: 1.08;
}

.company-case p {
  margin: 0;
  color: var(--text-muted);
  font-size: 14px;
}

.capital-path {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 70px;
  margin-top: 80px;
  padding: 44px 0;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
  background: transparent;
}

.capital-path h3 {
  max-width: 500px;
}

.capital-path ol {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.capital-path li {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  color: var(--text-soft);
  font-size: 13px;
}

.capital-path li span {
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 10px;
}

.site-footer {
  display: grid;
  grid-template-columns: 260px 1fr auto;
  gap: 50px;
  align-items: center;
  padding: 52px max(32px, calc((100vw - 1320px) / 2));
  border-top: 1px solid var(--line-strong);
  background: var(--black);
}

.footer-brand img {
  width: 180px;
  height: auto;
  display: block;
}

.footer-brand span {
  display: block;
  color: var(--text-muted);
  font-size: 11px;
}

.site-footer p {
  max-width: 760px;
  margin: 0;
  color: var(--text-muted);
  font-size: 12px;
}

.site-footer > a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  color: var(--text-soft);
  font-size: 12px;
}

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

@keyframes state-enter {
  from {
    opacity: 0.18;
    transform: translateY(7px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.js [data-reveal] {
  opacity: 0;
  transform: translateY(9px);
  transition: opacity var(--motion-state) var(--ease-enter),
    transform var(--motion-state) var(--ease-enter);
}

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

.runtime-layers article:nth-child(2),
.learning-loop li:nth-child(2),
.company-case article:nth-child(2) {
  transition-delay: 30ms;
}

.runtime-layers article:nth-child(3),
.learning-loop li:nth-child(3),
.company-case article:nth-child(3) {
  transition-delay: 60ms;
}

.runtime-layers article:nth-child(4),
.learning-loop li:nth-child(4),
.company-case article:nth-child(4) {
  transition-delay: 90ms;
}

@media (max-width: 1180px) {
  .site-header {
    grid-template-columns: 225px 1fr;
  }

  .vision-status {
    display: none;
  }

  .hero-grid {
    grid-template-columns: minmax(0, 1fr) 420px;
    gap: 42px;
  }

  .hero-inner {
    width: auto;
  }

  .method-explorer {
    grid-template-columns: 245px minmax(0, 1fr);
  }

  .method-detail {
    padding-left: 34px;
  }

}

@media (max-width: 900px) {
  :root {
    --header-height: calc(68px + env(safe-area-inset-top));
  }

  h2 {
    font-size: 46px;
  }

  .site-header {
    grid-template-columns: 190px 1fr auto;
    padding: 0 18px;
    padding-top: env(safe-area-inset-top);
    padding-right: max(18px, env(safe-area-inset-right));
    padding-left: max(18px, env(safe-area-inset-left));
    background: var(--black);
    backdrop-filter: none;
  }

  .company-mark {
    width: 178px;
    height: 30px;
  }

  .menu-toggle {
    display: block;
    grid-column: 3;
  }

  .primary-navigation {
    position: fixed;
    top: var(--header-height);
    right: 0;
    bottom: 0;
    left: 0;
    display: none;
    align-content: start;
    justify-content: stretch;
    padding: 32px max(24px, env(safe-area-inset-right)) calc(32px + env(safe-area-inset-bottom)) max(24px, env(safe-area-inset-left));
    overscroll-behavior: contain;
    height: calc(100dvh - var(--header-height));
    overflow-y: auto;
    background: rgba(6, 9, 8, 0.995);
  }

  .primary-navigation.is-open {
    display: grid;
  }

  .primary-navigation a {
    min-height: 54px;
    padding: 16px 0;
    border-bottom: 1px solid var(--line);
    font-size: 19px;
  }

  .primary-navigation a::after {
    display: none;
  }

  .section-inner {
    width: min(100% - 40px, 760px);
  }

  .content-section {
    padding: 94px 0;
  }

  .hero {
    min-height: auto;
    padding: calc(var(--header-height) + 54px) 0 84px;
    background:
      linear-gradient(180deg, rgba(6, 9, 8, 0.95) 0%, rgba(6, 9, 8, 0.72) 100%),
      linear-gradient(rgba(120, 224, 197, 0.035) 1px, transparent 1px),
      linear-gradient(90deg, rgba(120, 224, 197, 0.035) 1px, transparent 1px);
    background-size: auto, 40px 40px, 40px 40px;
  }

  .hero-grid {
    width: min(760px, calc(100% - 40px));
    min-height: 0;
    grid-template-columns: 1fr;
    gap: 64px;
  }

  .system-tour-layout {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .system-tour-intro {
    display: grid;
    grid-template-columns: 140px 1fr;
    gap: 24px;
    align-items: end;
  }

  .system-tour-intro h2 {
    max-width: 18ch;
  }

  .hero-inner {
    width: auto;
    max-width: 680px;
    margin: 0;
  }

  .kaya-lockup {
    width: min(480px, 82vw);
    margin: 12px 0 20px;
  }

  .hero-category {
    font-size: clamp(38px, 7vw, 50px);
  }

  .hero-instrument {
    max-width: none;
    justify-self: stretch;
  }

  .thesis-layout,
  .learning-layout,
  .company-identity,
  .capital-path {
    grid-template-columns: 1fr;
    gap: 46px;
  }

  .thesis-layout > :first-child,
  .thesis-copy {
    grid-column: 1;
    padding-right: 0;
  }

  .editorial-heading {
    grid-template-columns: repeat(8, minmax(0, 1fr));
    gap: 20px;
  }

  .editorial-heading .section-index {
    grid-column: 1 / 3;
  }

  .editorial-heading h2,
  .editorial-heading .section-summary {
    grid-column: 3 / 9;
  }

  .editorial-heading .section-summary {
    margin-top: 22px;
  }

  .thesis-principles article {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .assumption-workbench,
  .operation-grid {
    grid-template-columns: 1fr;
  }

  .inquiry-surface,
  .operation-timeline {
    border-right: 0;
    border-bottom: 1px solid var(--line-strong);
  }

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

  .method-kinds div:nth-child(2) {
    border-right: 0;
  }

  .method-kinds div:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }

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

  .method-navigation {
    padding: 24px 0;
    border-right: 0;
    border-bottom: 1px solid var(--line-strong);
  }

  #method-select {
    display: block;
    width: 100%;
  }

  .method-buttons {
    display: none;
  }

  .method-detail {
    padding: 38px 0;
  }

  .context-comparison {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .context-aperture {
    transform: rotate(45deg) scale(0.78);
  }

  .learning-nonclaim {
    grid-column: auto;
  }

  .company-identity > img {
    width: min(540px, 100%);
  }

  .site-footer {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

@media (max-width: 620px) {
  h2 {
    font-size: 42px;
    line-height: 1;
  }

  h3 {
    font-size: 24px;
  }

  .site-header {
    grid-template-columns: 156px 1fr auto;
    padding: 0 12px;
    padding-top: env(safe-area-inset-top);
    padding-right: max(12px, env(safe-area-inset-right));
    padding-left: max(12px, env(safe-area-inset-left));
  }

  .company-mark {
    width: 150px;
    height: 26px;
  }

  .menu-toggle {
    min-width: 48px;
    padding: 8px;
    font-size: 12px;
  }

  .section-inner {
    width: calc(100% - 28px);
  }

  .system-tour {
    padding: 28px 0;
  }

  .system-tour-intro {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .system-tour-intro h2 {
    max-width: 15ch;
    font-size: 26px;
  }

  .system-tour-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .system-tour-links a {
    min-height: 122px;
    padding: 14px;
  }

  .system-tour-links strong {
    font-size: 17px;
  }

  .hero {
    min-height: auto;
    padding: calc(var(--header-height) + 38px) 0 70px;
  }

  .hero-grid {
    width: calc(100% - 32px);
    gap: 52px;
  }

  .hero-inner {
    width: 100%;
  }

  .kaya-lockup {
    width: 100%;
    margin: 16px 0 14px;
  }

  .expansion {
    margin-bottom: 38px;
    font-size: 10px;
  }

  .hero-category {
    max-width: 12ch;
    font-size: 36px;
    line-height: 1.08;
  }

  .hero-statement {
    font-size: 17px;
    line-height: 1.62;
  }

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

  .hero-actions .button-quiet {
    justify-self: start;
    min-height: 44px;
    padding-left: 0;
  }

  .hero-facts {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
  }

  .hero-facts div {
    min-width: 0;
    padding: 14px 8px 0 0;
  }

  .hero-facts dt {
    font-size: 28px;
  }

  .hero-facts dd {
    font-size: 10px;
  }

  .hero-instrument {
    box-shadow: none;
  }

  .instrument-heading {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 24px 16px 20px;
  }

  .instrument-heading h2 {
    font-size: 42px;
  }

  .instrument-topline,
  .instrument-footer {
    padding-right: 14px;
    padding-left: 14px;
  }

  .instrument-topline > :first-child,
  .instrument-footer > :first-child {
    display: none;
  }

  .hero-instrument .hero-flow li {
    grid-template-columns: 40px 1fr;
    min-height: 60px;
    padding-right: 14px;
    padding-left: 14px;
  }

  .hero-instrument .hero-flow li::before {
    left: 17px;
  }

  .hero-instrument .hero-flow li::after {
    left: 20px;
  }

  .thesis-band {
    padding: 90px 0;
  }

  .content-section {
    padding: 80px 0;
  }

  .section-heading {
    margin-bottom: 52px;
  }

  .editorial-heading {
    grid-template-columns: 1fr;
    gap: 0;
    padding-top: 18px;
  }

  .editorial-heading .section-index,
  .editorial-heading h2,
  .editorial-heading .section-summary {
    grid-column: 1;
  }

  .editorial-heading .section-index {
    margin: 0 0 24px;
  }

  .editorial-heading .section-summary {
    margin-top: 28px;
    padding-left: 0;
    border-left: 0;
    font-size: 16px;
  }

  .scenario-switcher {
    display: grid;
    width: 100%;
  }

  .scenario-switcher button {
    border-right: 0;
    border-bottom: 1px solid var(--line-strong);
    text-align: left;
  }

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

  .inquiry-surface,
  .claim-surface,
  .operation-evidence {
    padding: 26px 20px;
  }

  .inquiry-surface blockquote {
    font-size: 23px;
  }

  .assumption-item {
    grid-template-columns: 12px 1fr;
  }

  .claim-status {
    grid-column: 2;
    width: fit-content;
  }

  .claim-state-rail {
    gap: 12px;
  }

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

  .method-kinds div {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .method-kinds div:last-child {
    border-bottom: 0;
  }

  .method-detail-heading h3 {
    font-size: 34px;
  }

  .method-number {
    font-size: 40px;
  }

  .method-summary {
    font-size: 17px;
  }

  .method-power {
    grid-template-columns: 1fr;
    gap: 10px;
  }

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

  .method-facts div:nth-child(odd) {
    padding-right: 0;
    border-right: 0;
  }

  .method-facts div:nth-child(even) {
    padding-left: 0;
  }

  .method-lifecycle li {
    flex-basis: 120px;
  }

  .operation-controls {
    display: grid;
  }

  .operation-controls select {
    width: 100%;
    min-width: 0;
  }

  .operation-timeline {
    padding: 18px;
  }

  .operation-step {
    grid-template-columns: 30px 1fr;
    padding: 10px 0;
  }

  .operation-step .step-state {
    grid-column: 2;
  }

  .environment-equation {
    flex-wrap: wrap;
    gap: 8px;
    overflow-x: visible;
  }

  .environment-equation strong {
    flex-basis: 100%;
    margin-left: 0;
    margin-top: 8px;
    text-align: center;
  }

  .runtime-layers article {
    grid-template-columns: 34px 1fr;
    padding-right: 0;
  }

  .runtime-layers article > div {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .context-comparison {
    padding: 32px 0;
  }

  .learning-loop li {
    grid-template-columns: 34px 1fr;
  }

  .learning-loop p {
    grid-column: 2;
  }

  .company-case {
    grid-template-columns: 1fr;
  }

  .company-case article {
    grid-template-columns: 82px minmax(0, 1fr);
    min-height: 0;
    padding: 28px 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .company-case article:nth-child(odd) {
    border-right: 0;
  }

  .company-case article:nth-child(even) {
    padding-left: 0;
  }

  .capital-path {
    padding: 32px 0;
  }

  .site-footer {
    padding: 44px max(20px, env(safe-area-inset-right)) calc(44px + env(safe-area-inset-bottom)) max(20px, env(safe-area-inset-left));
  }
}

@media (max-width: 1180px) {
  .cli-demo {
    grid-template-columns: 1fr;
  }

  .cli-terminal {
    min-height: 620px;
    border-right: 0;
    border-bottom: 1px solid var(--line-strong);
  }

  .reasoning-stage {
    min-height: 660px;
  }
}

@media (max-width: 900px) {
  .operation-controls {
    align-items: stretch;
  }

  .operation-control-field {
    flex: 1 1 360px;
  }

  .operation-actions {
    align-content: end;
  }

  .operation-outcome-band {
    grid-template-columns: 1fr 1fr;
  }

  .operation-outcome-band > div:nth-child(2) {
    border-right: 0;
  }

  .operation-outcome-band .human-gate {
    grid-column: 1 / -1;
    border-top: 1px solid var(--line-strong);
  }
}

@media (max-width: 620px) {
  .operation-controls,
  .operation-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .operation-control-field,
  .operation-controls select,
  .operation-actions .button {
    width: 100%;
    min-width: 0;
  }

  .operation-demo-note {
    display: block;
  }

  .operation-demo-note span {
    margin-bottom: 7px;
  }

  .terminal-chrome,
  .cli-terminal-footer {
    padding-right: 13px;
    padding-left: 13px;
  }

  .terminal-chrome {
    gap: 9px;
  }

  .cli-terminal {
    min-height: 580px;
  }

  .cli-terminal-body {
    padding: 20px 14px 10px;
  }

  .cli-prompt {
    min-height: 92px;
    flex-wrap: wrap;
    align-content: flex-start;
    gap: 5px 8px;
    font-size: 11px;
  }

  .cli-prompt-prefix {
    flex-basis: 100%;
  }

  .cli-command {
    flex-basis: 100%;
  }

  .cli-line {
    grid-template-columns: 22px minmax(0, 1fr);
    gap: 3px 8px;
    padding: 8px 0;
  }

  .cli-line > span:last-child {
    grid-column: 2;
  }

  .cli-terminal-footer {
    align-items: flex-start;
    min-height: 72px;
    flex-direction: column;
    justify-content: center;
  }

  .reasoning-stage {
    min-height: 0;
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
  }

  .reasoning-heading {
    grid-column: 1;
  }

  .phase-rail {
    display: flex;
    grid-row: 2;
    border-right: 0;
    border-bottom: 1px solid var(--line-strong);
    overflow-x: auto;
    overflow-y: hidden;
    scroll-snap-type: x proximity;
  }

  .phase-rail li {
    flex: 0 0 116px;
    scroll-snap-align: start;
  }

  .phase-trigger {
    min-height: 78px;
    border-right: 1px solid var(--line);
    border-bottom: 0;
    padding-left: 12px;
  }

  .phase-trigger::before {
    top: auto;
    right: 0;
    bottom: 0;
    width: auto;
    height: 2px;
  }

  .phase-detail {
    grid-row: 3;
    padding: 24px 18px 28px;
    overflow: visible;
  }

  .phase-detail h4 {
    max-width: none;
    font-size: 29px;
  }

  .operation-outcome-band {
    grid-template-columns: 1fr;
  }

  .operation-outcome-band > div,
  .operation-outcome-band > div:nth-child(2) {
    border-right: 0;
    border-bottom: 1px solid var(--line-strong);
  }

  .operation-outcome-band .human-gate {
    grid-column: auto;
    border-top: 0;
    border-bottom: 0;
  }

  .cli-demo.is-paused::after {
    top: 52px;
  }
}

@media (max-width: 1100px) {
  .execution-roles > li {
    padding-right: 22px;
    padding-left: 22px;
  }

  .execution-role-heading {
    display: grid;
    gap: 10px;
  }

  .execution-role-heading h4 {
    text-align: left;
  }

  .execution-roles > li > p:not(.execution-role-state) {
    min-height: 104px;
    margin-top: 26px;
  }
}

@media (max-width: 900px) {
  .execution-protocol-heading {
    grid-template-columns: 1fr;
  }

  .execution-protocol-index strong {
    max-width: none;
  }

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

  .execution-contract > div:nth-child(2) {
    border-right: 0;
  }

  .execution-contract > div:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }

  .execution-controls {
    align-items: flex-start;
    flex-direction: column;
  }

  .execution-actions {
    justify-content: flex-start;
  }

  .execution-roles {
    grid-template-columns: 1fr;
  }

  .execution-roles > li {
    min-height: 0;
    padding: 28px;
    border-right: 0;
    border-bottom: 1px solid var(--line-strong);
  }

  .execution-roles > li:last-child {
    border-bottom: 0;
  }

  .execution-roles > li:not(:last-child)::after {
    display: none;
  }

  .execution-role-heading {
    display: flex;
  }

  .execution-role-heading h4 {
    text-align: right;
  }

  .execution-roles > li > p:not(.execution-role-state) {
    min-height: 0;
    max-width: 680px;
    margin: 26px 0 22px;
  }

  .execution-roles dl {
    max-width: 680px;
  }

  .execution-workflow {
    grid-template-columns: 1fr;
  }

  .execution-ledger {
    border-top: 1px solid var(--line-strong);
    border-left: 0;
  }

  .execution-human-gate {
    grid-template-columns: minmax(190px, 0.7fr) minmax(0, 1.3fr);
  }

  .execution-gate-state {
    grid-column: 1 / -1;
    width: 100%;
  }
}

@media (max-width: 620px) {
  .execution-protocol {
    margin-top: 76px;
    padding-top: 56px;
  }

  .execution-protocol-heading {
    gap: 34px;
  }

  .execution-protocol-heading h3 {
    font-size: 38px;
    line-height: 1;
  }

  .execution-protocol-heading > div:last-child > p:last-child {
    margin-top: 24px;
    font-size: 16px;
  }

  .execution-contract {
    grid-template-columns: 1fr;
    margin-top: 42px;
  }

  .execution-contract > div,
  .execution-contract > div:not(:first-child) {
    min-height: 0;
    padding: 18px 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .execution-contract > div:last-child {
    border-bottom: 0;
  }

  .execution-status {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .execution-actions {
    display: grid;
    width: 100%;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .execution-actions .button {
    width: 100%;
    padding-right: 10px;
    padding-left: 10px;
  }

  #execution-run {
    grid-column: 1 / -1;
  }

  .execution-demo-note {
    display: grid;
    gap: 6px;
  }

  .execution-roles > li {
    padding: 24px 18px;
  }

  .execution-role-heading h4 {
    font-size: 29px;
  }

  .execution-roles dl {
    grid-template-columns: 1fr;
  }

  .execution-roles dl > div {
    padding: 14px 0;
  }

  .execution-roles dl > div + div {
    padding-left: 0;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .execution-handoff {
    padding: 34px 20px 38px;
  }

  .execution-handoff > h4 {
    font-size: 30px;
  }

  .execution-handoff > h4 + p {
    font-size: 15px;
  }

  .execution-handoff dl {
    grid-template-columns: 1fr;
    margin-top: 34px;
  }

  .execution-handoff dl > div {
    padding: 18px 0;
  }

  .execution-handoff dl > div + div {
    padding-left: 0;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .execution-ledger {
    padding: 26px 14px 20px;
  }

  .execution-ledger-heading {
    display: grid;
    gap: 10px;
  }

  .execution-event {
    grid-template-columns: 34px minmax(0, 1fr);
    min-height: 60px;
    padding-right: 4px;
    padding-left: 4px;
  }

  .execution-human-gate {
    grid-template-columns: 1fr;
    gap: 18px;
    padding: 24px 20px;
  }

  .execution-gate-state {
    grid-column: auto;
  }
}

@supports (margin: max(0px)) {
  @media (max-width: 900px) {
    .section-inner,
    .hero-grid {
      width: auto;
      margin-right: max(20px, env(safe-area-inset-right));
      margin-left: max(20px, env(safe-area-inset-left));
    }
  }

  @media (max-width: 620px) {
    .section-inner {
      margin-right: max(14px, env(safe-area-inset-right));
      margin-left: max(14px, env(safe-area-inset-left));
    }

    .hero-grid {
      margin-right: max(16px, env(safe-area-inset-right));
      margin-left: max(16px, env(safe-area-inset-left));
    }
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .js [data-reveal] {
    opacity: 1;
    transform: none;
  }

  .typing-cursor {
    display: none;
  }

  .site-progress span {
    transition: none;
  }
}

.motion-paused .typing-cursor {
  display: none;
}

.motion-paused .cli-line,
.motion-paused .phase-artifact {
  animation: none;
}

@media (forced-colors: active) {
  .world-shell {
    display: none;
  }

  .button,
  .scenario-switcher,
  .cli-demo,
  .context-comparison,
  .capital-path {
    border: 1px solid CanvasText;
  }
}