:root {
  color-scheme: light;
  --paper: #f2f0e8;
  --paper-2: #e8e4da;
  --surface: rgba(255, 255, 255, 0.62);
  --surface-solid: #fbfaf5;
  --ink: #121411;
  --muted: #666961;
  --line: rgba(18, 20, 17, 0.18);
  --line-strong: rgba(18, 20, 17, 0.42);
  --accent: #ea542e;
  --accent-soft: #ffd8ca;
  --signal: #a8ee55;
  --nav: rgba(242, 240, 232, 0.9);
  --dark: #10120f;
  --dark-2: #171a16;
  --dark-ink: #f1eee6;
  --shadow: 0 28px 80px rgba(28, 29, 24, 0.12);
  --mono: "IBM Plex Mono", monospace;
  --sans: "Instrument Sans", "Helvetica Neue", sans-serif;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --paper: #11130f;
  --paper-2: #181b16;
  --surface: rgba(255, 255, 255, 0.055);
  --surface-solid: #1b1e19;
  --ink: #f1eee6;
  --muted: #a8aca2;
  --line: rgba(241, 238, 230, 0.16);
  --line-strong: rgba(241, 238, 230, 0.38);
  --accent: #ff7048;
  --accent-soft: #4a2118;
  --signal: #b6f66b;
  --nav: rgba(17, 19, 15, 0.92);
  --dark: #080a07;
  --dark-2: #10130f;
  --dark-ink: #f1eee6;
  --shadow: 0 30px 90px rgba(0, 0, 0, 0.32);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 76px;
  background: var(--paper);
}

html.nav-jump {
  scroll-snap-type: none !important;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  font-size:16px;
  line-height: 1.45;
  font-variation-settings: "wdth" 92;
  transition: color 220ms ease, background 220ms ease;
}

a {
  color: inherit;
}

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

button,
input,
select,
textarea {
  font: inherit;
}

button:focus-visible,
a:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 10px 14px;
  color: #fff;
  background: #111;
  transform: translateY(-160%);
}

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

.site-header {
  --header-ink: var(--ink);
  --header-muted: var(--muted);
  --header-line: var(--line);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  height: 68px;
  display: grid;
  grid-template-columns: 210px minmax(0, 1fr) auto;
  align-items: center;
  gap: 20px;
  padding: 0 clamp(18px, 3vw, 48px);
  color: var(--header-ink);
  border-bottom: 1px solid var(--header-line);
  background: var(--nav);
  backdrop-filter: blur(18px);
  transition: color 220ms ease, background 220ms ease, border-color 220ms ease;
}

.site-header.is-on-dark {
  --header-ink: #f1eee6;
  --header-muted: #a8aca2;
  --header-line: rgba(241, 238, 230, 0.18);
  background: rgba(8, 10, 7, 0.93);
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 12px;
  text-decoration: none;
  white-space: nowrap;
}

.brand strong {
  font-size:21px;
  letter-spacing: -0.04em;
}

.brand strong span {
  color: var(--accent);
}

.brand small {
  color: var(--header-muted);
  font: 500 10px/1.2 var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.chapter-nav {
  display: flex;
  align-items: stretch;
  justify-content: center;
  height: 100%;
  overflow-x: auto;
  scrollbar-width: none;
}

.chapter-nav::-webkit-scrollbar {
  display: none;
}

.chapter-nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 0 10px;
  color: var(--header-muted);
  font: 500 11px/1 var(--mono);
  text-decoration: none;
  white-space: nowrap;
  transition: color 180ms ease;
}

.chapter-nav a span {
  opacity: 0.56;
  font-size:11px;
}

.chapter-nav a::after {
  content: "";
  position: absolute;
  left: 10px;
  right: 10px;
  bottom: -1px;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 220ms ease;
}

.chapter-nav a:hover,
.chapter-nav a.is-active {
  color: var(--header-ink);
}

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

.header-tools {
  display: flex;
  align-items: center;
  gap: 8px;
}

.theme-toggle {
  width: 42px;
  height: 42px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  place-items: center;
  padding: 4px;
  border: 1px solid var(--header-line);
  border-radius: 99px;
  color: var(--header-ink);
  background: var(--surface);
  cursor: pointer;
}

.theme-toggle span {
  display: grid;
  width: 16px;
  height: 28px;
  place-items: center;
  font-size:14px;
  opacity: 1;
}

.theme-toggle .moon {
  display: none;
}

:root[data-theme="dark"] .theme-toggle .sun {
  display: none;
}

:root[data-theme="dark"] .theme-toggle .moon {
  display: grid;
}

.cv-link {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0 15px;
  color: var(--header-ink);
  border: 1px solid var(--header-ink);
  border-radius: 99px;
  font: 600 11px/1 var(--mono);
  text-decoration: none;
}

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

.reading-progress i {
  display: block;
  width: 0;
  height: 100%;
  background: var(--accent);
}

.chapter {
  position: relative;
  min-height: max(720px, 100svh);
  padding: 108px 0 72px;
  overflow: clip;
  border-bottom: 1px solid var(--line);
}

.section-shell {
  position: relative;
  z-index: 2;
  width: min(1320px, calc(100% - 64px));
  margin: 0 auto;
}

.chapter-label {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 20px;
  color: var(--muted);
  font: 600 11px/1.2 var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.chapter-label span {
  display: inline-grid;
  width: 28px;
  height: 28px;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  color: var(--ink);
  font-size:11px;
  letter-spacing: 0;
}

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

h1,
h2,
h3 {
  line-height: 0.97;
  letter-spacing: -0.055em;
}

h1 {
  max-width: 760px;
  margin-bottom: 28px;
  font-size:clamp(64px, 7.2vw, 112px);
  font-weight: 540;
}

h1 em {
  color: var(--accent);
  font-family: Georgia, serif;
  font-weight: 400;
}

h2 {
  margin: 0;
  font-size:clamp(44px, 5vw, 76px);
  font-weight: 560;
}

h3 {
  font-weight: 600;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(260px, 0.75fr);
  gap: 70px;
  align-items: end;
  margin-bottom: 50px;
}

.section-heading > p {
  max-width: 420px;
  margin: 0 0 4px auto;
  color: var(--muted);
  font-size:17px;
  line-height: 1.55;
}

.reveal {
  opacity: 1;
  transform: none;
  transition: opacity 650ms ease, transform 650ms cubic-bezier(0.22, 1, 0.36, 1);
}

.js .reveal {
  opacity: 0;
  transform: translateY(22px);
}

.js .hero .reveal {
  opacity: 1 !important;
  transform: none !important;
}

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

/* Hero */
.hero {
  display: grid;
  align-items: center;
  padding-top: 120px;
  background:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 78px 78px;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 75% 45%, var(--accent-soft), transparent 36%);
  opacity: 0.55;
}

.hero-shell {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(400px, 0.8fr);
  gap: clamp(50px, 8vw, 130px);
  align-items: center;
}

.hero-lede {
  max-width: 660px;
  margin-bottom: 34px;
  color: var(--muted);
  font-size:clamp(20px, 2vw, 27px);
  line-height: 1.42;
  letter-spacing: -0.02em;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 26px;
}

.button {
  min-height: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  border-radius: 3px;
  font: 600 12px/1 var(--mono);
  text-decoration: none;
}

.button-primary {
  color: #fff8f2;
  background: var(--accent);
}

.button-cv {
  color: var(--paper);
  background: var(--ink);
}

.text-link {
  color: var(--ink);
  font: 600 12px/1 var(--mono);
  text-underline-offset: 5px;
}

.decision-console {
  position: relative;
  padding: 22px;
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.decision-console::before {
  content: "";
  position: absolute;
  inset: 8px;
  border: 1px solid var(--line);
  pointer-events: none;
}

.console-head {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 4px 4px 20px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font: 500 10px/1.2 var(--mono);
  text-transform: uppercase;
}

.console-head span {
  color: var(--ink);
}

.console-head i,
.contact-status i {
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 7px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--signal) 20%, transparent);
}

.console-flow {
  display: grid;
  grid-template-columns: 1fr 18px 1fr 18px 1fr;
  align-items: center;
  gap: 8px;
  padding: 44px 4px;
}

.console-flow > div {
  min-width: 0;
}

.console-flow span {
  display: block;
  margin-bottom: 12px;
  color: var(--accent);
  font: 500 10px/1 var(--mono);
}

.console-flow b {
  display: block;
  margin-bottom: 7px;
  font-size:20px;
  line-height: 1;
}

.console-flow small {
  display: block;
  color: var(--muted);
  font-size:12px;
}

.console-flow > i {
  height: 1px;
  background: var(--line-strong);
}

.console-result {
  padding: 19px;
  color: var(--dark-ink);
  background: var(--dark);
}

.console-result span {
  display: block;
  margin-bottom: 8px;
  color: var(--signal);
  font: 500 9px/1 var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.console-result p {
  margin: 0;
  font-size:16px;
}

.hero-facts {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin: 0;
  padding: 18px 4px 4px;
}

.hero-facts div {
  padding: 0 12px;
  border-right: 1px solid var(--line);
}

.hero-facts div:first-child {
  padding-left: 4px;
}

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

.hero-facts dt,
.hero-facts dd {
  margin: 0;
}

.hero-facts dt {
  margin-bottom: 5px;
  color: var(--muted);
  font: 500 8px/1.2 var(--mono);
  text-transform: uppercase;
}

.hero-facts dd {
  font-size:12px;
  font-weight: 650;
}

.hero-field {
  position: absolute;
  inset: 68px 0 0;
  pointer-events: none;
  transform: translate3d(var(--pointer-x, 0), var(--pointer-y, 0), 0);
  transition: transform 180ms ease-out;
}

.hero-field .route {
  position: absolute;
  display: block;
  width: 26vw;
  height: 1px;
  background: var(--line-strong);
  transform-origin: left;
}

.route-a { top: 28%; right: 3%; transform: rotate(22deg); }
.route-b { top: 56%; right: -4%; transform: rotate(-12deg); }
.route-c { top: 77%; right: 12%; transform: rotate(6deg); }

.signal {
  position: absolute;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 8px color-mix(in srgb, var(--accent) 14%, transparent);
  animation: drift 7s ease-in-out infinite alternate;
}

.s1 { top: 27%; right: 20%; }
.s2 { top: 55%; right: 10%; animation-delay: -2s; }
.s3 { top: 76%; right: 27%; animation-delay: -4s; }

.scroll-cue {
  position: absolute;
  left: 50%;
  bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--muted);
  font: 500 9px/1 var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  transform: translateX(-50%);
}

.scroll-cue i {
  width: 24px;
  height: 1px;
  background: currentColor;
}

/* Proof */
.proof {
  background: var(--paper-2);
}

.proof-console {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line-strong);
  border-left: 1px solid var(--line-strong);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.proof-console > article {
  min-width: 0;
  border-right: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
}

.proof-console > article {
  padding: clamp(22px, 2.3vw, 32px);
}

.panel-label {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
  font: 500 10px/1.2 var(--mono);
  text-transform: uppercase;
}

.panel-label small {
  color: var(--muted);
}

.evidence-card {
  position: relative;
  min-height: 440px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: color-mix(in srgb, var(--surface-solid) 76%, transparent);
  transition: background 180ms ease, transform 180ms ease;
}

.evidence-card:hover {
  z-index: 2;
  background: var(--surface-solid);
  transform: translateY(-4px);
}

.evidence-value {
  display: flex;
  align-items: baseline;
  min-height: 94px;
  margin: 24px 0 14px;
  color: var(--accent);
}

.evidence-value strong {
  font-size:clamp(62px, 6vw, 92px);
  font-weight: 560;
  line-height: 0.85;
  letter-spacing: -0.08em;
}

.evidence-value b {
  font: 600 21px/1 var(--mono);
}

.evidence-value span {
  margin: 0 7px;
  color: var(--muted);
  font: 600 9px/1 var(--mono);
  text-transform: uppercase;
}

.evidence-value em {
  margin: 0 10px;
  color: var(--line-strong);
  font: 400 30px/1 var(--sans);
  font-style: normal;
}

.split-value strong {
  font-size:clamp(45px, 4.5vw, 68px);
}

.evidence-card h3 {
  max-width: 370px;
  margin: 0 0 12px;
  font-size:clamp(21px, 2vw, 28px);
  line-height: 1.05;
  letter-spacing: -0.025em;
}

.evidence-card > p {
  max-width: 420px;
  margin: 0;
  color: var(--muted);
  font-size:14px;
  line-height: 1.5;
}

.evidence-meaning {
  margin: 20px 0;
  padding: 15px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.evidence-meaning span {
  display: block;
  margin-bottom: 7px;
  color: var(--accent);
  font: 600 9px/1 var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.evidence-meaning strong {
  display: block;
  max-width: 430px;
  font-size:14px;
  line-height: 1.4;
}

.evidence-meter {
  display: grid;
  grid-template-columns: 86px minmax(0, 1fr);
  gap: 8px 12px;
  margin-top: auto;
  color: var(--muted);
  font: 500 9px/1 var(--mono);
  text-transform: uppercase;
}

.evidence-meter i {
  height: 9px;
  display: block;
  overflow: hidden;
  border: 1px solid var(--line);
}

.evidence-meter b {
  width: var(--fill);
  height: 100%;
  display: block;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 900ms 260ms cubic-bezier(0.22, 1, 0.36, 1);
}

.evidence-ledger.is-visible .evidence-meter b {
  transform: scale(1);
}

.resource-pulse {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  height: 42px;
  align-items: end;
  margin-top: auto;
}

.resource-pulse i {
  height: 42%;
  border: 1px solid var(--line-strong);
  background: var(--accent-soft);
  transform-origin: bottom;
}

.resource-pulse i:nth-child(2) { height: 68%; }
.resource-pulse i:nth-child(3) { height: 100%; background: var(--accent); }
.resource-pulse i:nth-child(4) { height: 82%; }
.resource-pulse i:nth-child(5) { height: 58%; }

.evidence-resource.is-visible .resource-pulse i,
.evidence-ledger.is-visible .resource-pulse i {
  animation: resourceRise 2.4s ease-in-out infinite alternate;
}

.resource-pulse i:nth-child(2) { animation-delay: 120ms; }
.resource-pulse i:nth-child(3) { animation-delay: 240ms; }
.resource-pulse i:nth-child(4) { animation-delay: 360ms; }
.resource-pulse i:nth-child(5) { animation-delay: 480ms; }

.cycle-comparison {
  display: grid;
  gap: 9px;
  margin-top: auto;
  font: 500 9px/1 var(--mono);
  text-transform: uppercase;
}

.cycle-comparison span {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 46px;
  align-items: center;
  gap: 12px;
}

.cycle-comparison i {
  display: block;
  height: 10px;
  background: repeating-linear-gradient(90deg, var(--line-strong) 0 2px, transparent 2px 6px);
}

.cycle-comparison span:last-child i {
  width: 80%;
  background: var(--accent);
}

.project-matrix {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  gap: 5px;
  margin-top: auto;
}

.project-matrix i {
  aspect-ratio: 1;
  display: block;
  border: 1px solid var(--line-strong);
  background: transparent;
  transform: scale(0.75);
  opacity: 0;
  transition: opacity 300ms ease, transform 300ms ease;
}

.is-visible .project-matrix i {
  transform: scale(1);
  opacity: 1;
}

.project-matrix i.active {
  border-color: var(--accent);
  background: var(--accent);
}

.project-matrix i:nth-child(n+7) { transition-delay: 100ms; }
.project-matrix i:nth-child(n+13) { transition-delay: 200ms; }
.project-matrix i:nth-child(n+19) { transition-delay: 300ms; }
.project-matrix i:nth-child(n+25) { transition-delay: 400ms; }

.people-field {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  gap: 7px;
  margin-top: auto;
}

.people-field i {
  position: relative;
  height: 28px;
}

.people-field i::before,
.people-field i::after {
  content: "";
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
}

.people-field i::before {
  top: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.people-field i::after {
  top: 11px;
  width: 13px;
  height: 17px;
  border-radius: 7px 7px 2px 2px;
}

.scale-route {
  display: grid;
  grid-template-columns: auto minmax(30px, 1fr) auto;
  align-items: center;
  gap: 12px;
  margin-top: auto;
  color: var(--muted);
  font: 600 9px/1 var(--mono);
  text-transform: uppercase;
}

.scale-route i {
  position: relative;
  height: 1px;
  background: var(--line-strong);
}

.scale-route i::after {
  content: "";
  position: absolute;
  top: -4px;
  left: 0;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--signal);
}

.proof.is-current .scale-route i::after {
  animation: scaleTravel 3.4s ease-in-out infinite;
}

/* Work */
.case-ribbon {
  border-top: 1px solid var(--line-strong);
}

.case {
  border-bottom: 1px solid var(--line-strong);
}

.case summary {
  min-height: 126px;
  display: grid;
  grid-template-columns: 58px minmax(0, 1.2fr) minmax(130px, 0.45fr) 34px;
  gap: 28px;
  align-items: center;
  padding: 22px 0;
  cursor: pointer;
  list-style: none;
}

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

.case-number {
  color: var(--accent);
  font: 500 12px/1 var(--mono);
}

.case summary small {
  display: block;
  margin-bottom: 10px;
  color: var(--muted);
  font: 500 10px/1.2 var(--mono);
  text-transform: uppercase;
}

.case summary h3 {
  margin: 0;
  font-size:clamp(27px, 2.5vw, 40px);
  line-height: 1;
}

.case summary > strong {
  justify-self: start;
  font: 500 13px/1.4 var(--mono);
}

.expand-mark {
  position: relative;
  width: 32px;
  height: 32px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
}

.expand-mark::before,
.expand-mark::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 11px;
  height: 1px;
  background: var(--ink);
  transform: translate(-50%, -50%);
  transition: transform 180ms ease;
}

.expand-mark::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.case[open] .expand-mark::after {
  transform: translate(-50%, -50%) rotate(0);
}

.case-body {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(260px, 0.55fr);
  gap: 55px;
  align-items: center;
  padding: 12px 0 40px 86px;
  animation: caseReveal 360ms cubic-bezier(0.22, 1, 0.36, 1);
}

.case-body > p {
  margin: 0;
  color: var(--muted);
  font-size:15px;
  line-height: 1.6;
}

.twin-model {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 18px;
  align-items: center;
}

.twin-model article {
  padding: 18px;
  border: 1px solid var(--line);
  background: var(--surface);
}

.twin-model article > span,
.twin-model article > small {
  display: block;
  color: var(--muted);
  font: 500 9px/1.3 var(--mono);
  text-transform: uppercase;
}

.twin-model article b {
  display: block;
  margin: 6px 0 15px;
  font-size:22px;
}

.twin-model > em {
  color: var(--muted);
  font: 500 9px/1.2 var(--mono);
  font-style: normal;
  text-align: center;
}

.plant {
  position: relative;
  display: block;
  height: 42px;
  margin-bottom: 15px;
  border-bottom: 2px solid var(--ink);
  background: repeating-linear-gradient(90deg, transparent 0 24px, var(--line) 24px 25px);
}

.plant::before,
.plant::after {
  content: "";
  position: absolute;
  bottom: 0;
  width: 24px;
  border: 2px solid var(--accent);
  border-bottom: 0;
}

.plant::before { left: 18%; height: 25px; }
.plant::after { right: 18%; height: 38px; }

.plant.new::before,
.plant.new::after {
  border-style: dashed;
}

.resource-model {
  display: grid;
  grid-template-columns: 1fr 28px 1fr 28px 1fr;
  gap: 12px;
  align-items: center;
  text-align: center;
}

.resource-model > span {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 7px;
}

.resource-model span i {
  width: 22px;
  height: 22px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
}

.resource-model span small {
  flex-basis: 100%;
  color: var(--muted);
  font: 500 9px/1.2 var(--mono);
}

.resource-model > b {
  padding: 25px 10px;
  color: #111;
  border-radius: 50%;
  background: var(--signal);
  font-size:13px;
}

.resource-model > em {
  color: var(--accent);
  font-style: normal;
}

.migration-route {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  margin: 0;
  padding: 0;
  list-style: none;
}

.migration-route li {
  position: relative;
  padding: 36px 8px 8px;
  border-top: 2px solid var(--line-strong);
  color: var(--muted);
  font: 500 9px/1.2 var(--mono);
  text-align: center;
}

.migration-route li::before {
  content: "";
  position: absolute;
  top: -6px;
  left: 50%;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
}

.decision-model {
  display: grid;
  grid-template-columns: 1fr 34px 1fr 34px 1fr;
  grid-template-rows: auto auto;
  align-items: center;
  text-align: center;
}

.decision-model span {
  padding: 20px 10px;
  border: 1px solid var(--line);
}

.decision-model span small,
.decision-model span b {
  display: block;
}

.decision-model span small {
  margin-bottom: 5px;
  color: var(--muted);
  font: 500 9px/1 var(--mono);
}

.decision-model > strong {
  padding: 20px 10px;
  color: #111;
  background: var(--signal);
  font-size:13px;
  line-height: 1.3;
}

.decision-model > i {
  height: 1px;
  background: var(--accent);
}

.decision-model > em {
  grid-column: 3;
  margin-top: 12px;
  color: var(--muted);
  font: 500 9px/1 var(--mono);
  font-style: normal;
}

/* Career route */
.career-route {
  background:
    linear-gradient(90deg, transparent 49.94%, var(--line) 50%, transparent 50.06%),
    var(--paper-2);
}

.career-journey {
  position: relative;
  border: 1px solid var(--line-strong);
  background: var(--surface);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.journey-stages {
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  min-height: 370px;
  margin: 0;
  padding: 0;
  border-bottom: 1px solid var(--line);
  list-style: none;
}

.journey-stages::before {
  content: "";
  position: absolute;
  z-index: 1;
  top: 68px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: var(--line-strong);
}

.journey-stages li {
  position: relative;
  min-width: 0;
  padding: 102px 14px 22px;
  border-right: 1px solid var(--line);
}

.journey-stages li:last-child {
  border-right: 0;
}

.journey-year {
  position: absolute;
  z-index: 3;
  top: 28px;
  left: 18px;
  color: var(--accent);
  font: 650 15px/1 var(--mono);
}

.journey-stages li > i {
  position: absolute;
  z-index: 3;
  top: 61px;
  left: 18px;
  width: 16px;
  height: 16px;
  border: 3px solid var(--paper-2);
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}

.journey-stages article {
  position: relative;
  min-height: 232px;
  padding: 18px;
  border: 1px solid var(--line-strong);
  background: var(--surface-solid);
  transform: translateY(28px);
  opacity: 0;
  transition: transform 700ms cubic-bezier(0.22, 1, 0.36, 1), opacity 500ms ease, background 180ms ease;
}

.career-journey.is-visible .journey-stages article {
  transform: translateY(0);
  opacity: 1;
}

.journey-stages li:nth-child(2) article { transition-delay: 120ms; }
.journey-stages li:nth-child(3) article { transition-delay: 240ms; }
.journey-stages li:nth-child(4) article { transition-delay: 360ms; }
.journey-stages li:nth-child(5) article { transition-delay: 480ms; }

.journey-stages li:nth-child(2) article,
.journey-stages li:nth-child(4) article {
  background: color-mix(in srgb, var(--accent-soft) 42%, var(--surface-solid));
}

.journey-stages li:last-child article {
  color: #111;
  border-color: var(--signal);
  background: var(--signal);
}

.journey-stages article small {
  display: block;
  min-height: 28px;
  margin-bottom: 30px;
  color: var(--muted);
  font: 600 8px/1.1 var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.journey-stages li:last-child article small {
  color: rgba(17, 17, 17, 0.62);
}

.journey-stages article h3 {
  margin: 0 0 12px;
  font-size:clamp(19px, 1.7vw, 26px);
  line-height: 1.02;
}

.journey-stages article p {
  margin: 0 0 22px;
  color: var(--muted);
  font-size:12px;
  line-height: 1.45;
}

.journey-stages li:last-child article p {
  color: rgba(17, 17, 17, 0.7);
}

.journey-stages article b {
  position: absolute;
  left: 18px;
  bottom: 17px;
  color: var(--accent);
  font: 600 8px/1 var(--mono);
  text-transform: uppercase;
  white-space: nowrap;
}

.journey-stages li:last-child article b {
  color: #111;
}

.journey-signal {
  position: absolute;
  z-index: 4;
  top: 62px;
  left: 10%;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 6px color-mix(in srgb, var(--signal) 18%, transparent);
  opacity: 0;
}

.career-route.is-current .journey-signal,
.career-journey.is-visible .journey-signal {
  animation: journeyTravel 6s 700ms ease-in-out both;
}

.learning-rail {
  display: grid;
  grid-template-columns: 150px 1fr 70px 1fr;
  gap: 18px;
  align-items: center;
  padding: 20px 24px;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--paper-2) 70%, transparent);
}

.learning-rail > span,
.journey-thesis span {
  color: var(--accent);
  font: 600 9px/1 var(--mono);
  text-transform: uppercase;
}

.learning-rail article {
  min-width: 0;
}

.learning-rail small {
  display: block;
  margin-bottom: 5px;
  color: var(--muted);
  font: 500 8px/1 var(--mono);
  text-transform: uppercase;
}

.learning-rail strong {
  display: block;
  font-size:15px;
}

.learning-rail p {
  margin: 5px 0 0;
  color: var(--muted);
  font-size:11px;
}

.learning-rail > i {
  height: 1px;
  background: var(--line-strong);
}

.journey-thesis {
  display: grid;
  grid-template-columns: 150px minmax(0, 1.1fr) minmax(280px, 0.7fr);
  gap: 22px;
  align-items: center;
  padding: 24px;
  color: #111;
  background: var(--signal);
}

.journey-thesis span {
  color: #111;
}

.journey-thesis strong {
  font-size:18px;
  line-height: 1.25;
}

.journey-thesis p {
  margin: 0;
  font-size:12px;
  line-height: 1.45;
}

/* Lab */
.lab {
  min-height: max(860px, 100svh);
  color: var(--ink);
  background:
    radial-gradient(circle at 16% 72%, rgba(168, 238, 85, 0.18), transparent 28%),
    radial-gradient(circle at 82% 22%, rgba(234, 84, 46, 0.1), transparent 24%),
    var(--paper-2);
}

.lab .chapter-label,
.lab .section-heading > p {
  color: var(--muted);
}

.lab .chapter-label span {
  color: var(--ink);
  border-color: var(--line-strong);
}

.lab-backdrop {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(18, 20, 17, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(18, 20, 17, 0.055) 1px, transparent 1px);
  background-size: 58px 58px;
}

.lab-backdrop i {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(18, 20, 17, 0.16);
}

.lab-backdrop i:nth-child(1) { width: 360px; height: 360px; left: 8%; top: 24%; }
.lab-backdrop i:nth-child(2) { width: 550px; height: 550px; right: -8%; bottom: -25%; }
.lab-backdrop i:nth-child(3) { width: 9px; height: 9px; left: 22%; top: 40%; background: var(--signal); }
.lab-backdrop i:nth-child(4) { width: 6px; height: 6px; right: 28%; top: 32%; background: var(--accent); }
.lab-backdrop i:nth-child(5) { width: 12px; height: 12px; right: 12%; bottom: 20%; background: var(--signal); }

.ecosystem {
  position: relative;
  min-height: 560px;
}

.ecosystem-core {
  position: absolute;
  z-index: 3;
  top: 50%;
  left: 50%;
  width: 190px;
  height: 190px;
  display: grid;
  align-content: center;
  place-items: center;
  padding: 20px;
  border: 1px solid var(--signal);
  border-radius: 50%;
  color: #111;
  background: var(--signal);
  text-align: center;
  transform: translate(-50%, -50%);
}

.ecosystem-core::before,
.ecosystem-core::after {
  content: "";
  position: absolute;
  inset: -24px;
  border: 1px dashed rgba(182, 246, 107, 0.34);
  border-radius: 50%;
}

.ecosystem-core::after {
  inset: -48px;
  border-style: solid;
  opacity: 0.32;
}

.lab.is-current .ecosystem-core::before {
  animation: orbit 16s linear infinite;
}

.lab.is-current .ecosystem-core::after {
  animation: orbit 24s linear infinite reverse;
}

.ecosystem-core span {
  margin-bottom: 10px;
  font: 600 9px/1 var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.ecosystem-core strong {
  font-size:18px;
  line-height: 1.25;
}

.ecosystem-core i {
  width: 6px;
  height: 6px;
  margin-top: 12px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 1.8s ease-in-out infinite;
}

.build {
  position: absolute;
  z-index: 2;
  width: 218px;
  min-height: 126px;
  padding: 15px;
  border: 1px solid var(--line);
  background: rgba(251, 250, 245, 0.9);
  box-shadow: 0 14px 38px rgba(18, 20, 17, 0.06);
  transition: border-color 180ms ease, transform 180ms ease, background 180ms ease;
}

.build:hover {
  z-index: 4;
  border-color: var(--accent);
  background: var(--surface-solid);
  transform: translateY(-4px);
}

.build > span,
.build > small {
  display: block;
  color: var(--muted);
  font: 500 8px/1.2 var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.build h3 {
  margin: 8px 0 7px;
  color: var(--ink);
  font-size:22px;
  line-height: 1;
}

.build p {
  margin-bottom: 8px;
  color: var(--muted);
  font-size:12px;
  line-height: 1.4;
}

.build a {
  display: inline-block;
  margin-top: 2px;
  color: var(--accent);
  font: 600 9px/1.2 var(--mono);
  text-underline-offset: 4px;
}

.build-1 { top: 0; left: 3%; }
.build-2 { top: 0; left: 30%; }
.build-3 { top: 0; right: 29%; }
.build-4 { top: 0; right: 3%; }
.build-5 { bottom: 0; left: 3%; }
.build-6 { bottom: 0; left: 30%; }
.build-7 { bottom: 0; right: 29%; }
.build-8 { bottom: 0; right: 3%; }

.weaveplane {
  border-color: var(--accent);
}

.ecosystem-lines {
  position: absolute;
  inset: 0;
  z-index: 1;
  width: 100%;
  height: 100%;
}

.ecosystem-lines path {
  fill: none;
  stroke: rgba(18, 20, 17, 0.24);
  stroke-width: 1;
  stroke-dasharray: 4 7;
  stroke-dashoffset: 60;
  transition: stroke-dashoffset 2200ms linear;
}

.is-visible .ecosystem-lines path {
  stroke-dashoffset: 0;
}

:root[data-theme="dark"] .lab {
  color: var(--ink);
  background:
    radial-gradient(circle at 16% 72%, rgba(182, 246, 107, 0.08), transparent 28%),
    radial-gradient(circle at 82% 22%, rgba(255, 112, 72, 0.1), transparent 24%),
    var(--dark);
}

:root[data-theme="dark"] .lab-backdrop {
  background:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 58px 58px;
}

:root[data-theme="dark"] .lab-backdrop i {
  border-color: rgba(182, 246, 107, 0.2);
}

:root[data-theme="dark"] .build {
  border-color: var(--line);
  background: rgba(16, 18, 15, 0.88);
  box-shadow: none;
}

:root[data-theme="dark"] .build:hover {
  border-color: var(--signal);
  background: var(--dark-2);
}

:root[data-theme="dark"] .build h3,
:root[data-theme="dark"] .build a {
  color: var(--signal);
}

:root[data-theme="dark"] .ecosystem-lines path {
  stroke: rgba(182, 246, 107, 0.28);
}

/* Systems */
.systems {
  background: var(--paper-2);
}

.signal-board {
  border: 1px solid var(--line-strong);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.board-head,
.signal-lane {
  display: grid;
  grid-template-columns: 1fr 50px 1fr 1.3fr 50px 1fr;
  align-items: center;
}

.board-head {
  grid-template-columns: 1fr calc(50px + 1fr) calc(1.3fr + 50px) 1fr;
  padding: 14px 22px;
  color: var(--muted);
  border-bottom: 1px solid var(--line-strong);
  font: 500 9px/1 var(--mono);
  text-transform: uppercase;
}

.signal-lane {
  min-height: 72px;
  padding: 0 22px;
  border-bottom: 1px solid var(--line);
}

.signal-lane > span {
  font-size:16px;
  font-weight: 600;
}

.signal-lane > span i {
  margin-right: 12px;
  color: var(--accent);
  font: 500 9px/1 var(--mono);
  font-style: normal;
}

.signal-lane > b {
  font-size:15px;
}

.signal-lane > strong {
  color: var(--muted);
  font: 500 11px/1.3 var(--mono);
}

.signal-lane > em {
  position: relative;
  height: 1px;
  margin: 0 12px;
  overflow: visible;
  background: var(--line-strong);
}

.signal-lane > em::after {
  content: "";
  position: absolute;
  top: -3px;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0;
  transition: transform 900ms ease, opacity 180ms ease;
}

.is-visible .signal-lane > em::after {
  opacity: 1;
  transform: translateX(30px);
}

.systems.is-current .signal-lane > em::after {
  animation: lanePulse 2.8s ease-in-out infinite;
}

.signal-lane:nth-child(3) em::after { transition-delay: 140ms; }
.signal-lane:nth-child(4) em::after { transition-delay: 280ms; }
.signal-lane:nth-child(5) em::after { transition-delay: 420ms; }
.signal-lane:nth-child(6) em::after { transition-delay: 560ms; }

.board-note {
  display: grid;
  grid-template-columns: 0.35fr 1fr;
  gap: 30px;
  padding: 24px 22px;
  color: #111;
  background: var(--signal);
}

.board-note span {
  font: 600 10px/1.2 var(--mono);
  text-transform: uppercase;
}

.board-note strong {
  font-size:19px;
  letter-spacing: -0.02em;
}

/* Method */
.method-loop {
  position: relative;
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr) 150px;
  align-items: stretch;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
}

.loop-input,
.loop-output {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 22px;
  border-left: 1px solid var(--line-strong);
  border-right: 1px solid var(--line-strong);
  overflow: hidden;
}

.loop-output {
  color: #111;
  background: var(--signal);
}

.loop-input span,
.loop-output span {
  margin-bottom: 15px;
  font: 600 9px/1 var(--mono);
  text-transform: uppercase;
}

.loop-input b,
.loop-output b {
  font-size:14px;
  line-height: 1.35;
}

.loop-input i,
.loop-output i {
  position: absolute;
  right: -14px;
  bottom: 22px;
  width: 70px;
  height: 70px;
  border: 1px dashed currentColor;
  border-radius: 50%;
  opacity: 0.24;
}

.method-loop ol {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 0;
  padding: 0;
  list-style: none;
}

.method-loop li {
  min-height: 220px;
  padding: 18px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.method-loop li:nth-child(n+4) {
  border-bottom: 0;
}

.method-loop li > span,
.method-loop li > small {
  color: var(--muted);
  font: 500 9px/1.2 var(--mono);
  text-transform: uppercase;
}

.method-loop li h3 {
  margin: 14px 0 7px;
  font-size:20px;
  letter-spacing: -0.035em;
}

.method-loop li p {
  min-height: 50px;
  margin-bottom: 9px;
  color: var(--muted);
  font-size:12px;
  line-height: 1.4;
}

.mini-model {
  position: relative;
  height: 48px;
  margin-top: 18px;
}

.mini-model i,
.mini-model b,
.mini-model em {
  position: absolute;
  display: block;
}

.mini-model.audit i {
  left: 0;
  width: 80%;
  height: 2px;
  background: var(--line-strong);
}
.mini-model.audit i:nth-child(1) { top: 2px; width: 92%; }
.mini-model.audit i:nth-child(2) { top: 14px; width: 65%; }
.mini-model.audit i:nth-child(3) { top: 26px; width: 78%; }
.mini-model.audit i:nth-child(4) { top: 38px; width: 48%; background: var(--accent); }

.mini-model.align i {
  top: 5px;
  width: 38px;
  height: 38px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
}
.mini-model.align i:first-child { left: 18%; }
.mini-model.align i:nth-child(2) { left: 43%; }
.mini-model.align b { top: 23px; left: 39%; width: 20%; height: 2px; background: var(--accent); }

.mini-model.organise i {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--accent);
}
.mini-model.organise i:nth-child(1) { top: 3px; left: 8%; }
.mini-model.organise i:nth-child(2) { top: 34px; left: 33%; }
.mini-model.organise i:nth-child(3) { top: 6px; left: 59%; }
.mini-model.organise i:nth-child(4) { top: 34px; left: 85%; }
.mini-model.organise em { top: 22px; left: 8%; width: 78%; height: 1px; background: var(--line-strong); transform: rotate(3deg); }

.mini-model.activate i {
  top: 8px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 1px solid var(--accent);
}
.mini-model.activate i:nth-child(1) { left: 4%; }
.mini-model.activate i:nth-child(2) { left: 23%; }
.mini-model.activate i:nth-child(3) { left: 42%; }
.mini-model.activate i:nth-child(4) { left: 61%; }
.mini-model.activate i:nth-child(5) { left: 80%; }

.mini-model.support i {
  top: 22px;
  width: 30%;
  height: 1px;
  background: var(--line-strong);
}
.mini-model.support i:first-child { left: 5%; }
.mini-model.support i:last-child { right: 5%; }
.mini-model.support b {
  top: 12px;
  left: calc(50% - 10px);
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent);
}

.mini-model.improve i {
  width: 22px;
  height: 22px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
}
.mini-model.improve i:nth-child(1) { top: 2px; left: 20%; }
.mini-model.improve i:nth-child(2) { top: 25px; left: 45%; }
.mini-model.improve i:nth-child(3) { top: 2px; left: 70%; }
.mini-model.improve b { top: 24px; left: 27%; width: 48%; height: 1px; background: var(--accent); }

.signal-packet {
  position: absolute;
  z-index: 5;
  top: -5px;
  left: 148px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0;
}

.method-loop.is-visible .signal-packet {
  animation: travel 4s 450ms cubic-bezier(0.45, 0, 0.55, 1) both;
}

.method-loop.is-replaying .signal-packet {
  animation: none;
}

.method-loop.is-replaying .signal-packet {
  animation: travel 4s 40ms cubic-bezier(0.45, 0, 0.55, 1) both;
}

.heading-action {
  max-width: 420px;
  margin: 0 0 4px auto;
}

.heading-action p {
  margin-bottom: 18px;
  color: var(--muted);
  font-size:17px;
  line-height: 1.55;
}

.motion-replay {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 0 15px;
  color: var(--ink);
  border: 1px solid var(--line-strong);
  border-radius: 99px;
  background: transparent;
  font: 600 10px/1 var(--mono);
  cursor: pointer;
}

.motion-replay i {
  width: 10px;
  height: 10px;
  border: 2px solid currentColor;
  border-left-color: transparent;
  border-radius: 50%;
}

.motion-replay:hover {
  color: #111;
  border-color: var(--signal);
  background: var(--signal);
}

/* Person */
.person {
  background: var(--paper-2);
}

.operating-principles {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border: 1px solid var(--line-strong);
  background: var(--surface);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.operating-principles article {
  position: relative;
  z-index: 2;
  min-height: 360px;
  padding: 30px 24px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface-solid) 76%, transparent);
  transition: color 180ms ease, background 180ms ease, transform 180ms ease;
}

.operating-principles article:nth-of-type(4) {
  border-right: 0;
}

.operating-principles article:hover {
  z-index: 3;
  color: #111;
  background: var(--signal);
  transform: translateY(-4px);
}

.operating-principles article:hover p,
.operating-principles article:hover > span,
.operating-principles article:hover small {
  color: #111;
}

.operating-principles article > span {
  color: var(--accent);
  font: 600 9px/1 var(--mono);
  text-transform: uppercase;
}

.operating-principles article h3 {
  max-width: 280px;
  margin: 72px 0 14px;
  font-size:clamp(23px, 2vw, 31px);
  line-height: 1.05;
}

.operating-principles article p {
  max-width: 280px;
  margin: 0;
  color: var(--muted);
  font-size:14px;
  line-height: 1.5;
}

.operating-principles article small {
  position: absolute;
  left: 24px;
  bottom: 28px;
  color: var(--muted);
  font: 600 8px/1 var(--mono);
  text-transform: uppercase;
}

.operating-line {
  position: absolute;
  z-index: 4;
  top: 79px;
  left: 24px;
  right: 24px;
  height: 1px;
  background: var(--line-strong);
  pointer-events: none;
}

.operating-line::before,
.operating-line::after {
  content: "";
  position: absolute;
  top: -4px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
}

.operating-line::before {
  left: 0;
  background: var(--accent);
}

.operating-line::after {
  right: 0;
  background: var(--signal);
}

.operating-line i {
  position: absolute;
  top: -5px;
  left: 0;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 5px color-mix(in srgb, var(--signal) 20%, transparent);
}

.person.is-current .operating-line i {
  animation: operatingTravel 4.6s ease-in-out infinite;
}

.self-correction {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 150px minmax(220px, 0.65fr) 1fr;
  gap: 22px;
  align-items: center;
  padding: 22px 24px;
  color: #111;
  background: var(--signal);
}

.self-correction span {
  font: 600 9px/1 var(--mono);
  text-transform: uppercase;
}

.self-correction strong {
  font-size:20px;
}

.self-correction p {
  margin: 0;
  font-size:13px;
}

/* Recommendations */
.recommendations {
  background:
    radial-gradient(circle at 14% 18%, color-mix(in srgb, var(--signal) 14%, transparent), transparent 24%),
    var(--paper);
}

.recommendation-field {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line-strong);
  border-left: 1px solid var(--line-strong);
  background: var(--surface);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.recommendation-field blockquote {
  position: relative;
  z-index: 2;
  min-height: 360px;
  display: flex;
  flex-direction: column;
  margin: 0;
  padding: 30px;
  border-right: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
  background: color-mix(in srgb, var(--surface-solid) 80%, transparent);
}

.recommendation-field blockquote > span,
.recommendation-field blockquote > small,
.recommendation-consensus > span {
  color: var(--accent);
  font: 600 9px/1 var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.recommendation-field blockquote p {
  margin: 72px 0 22px;
  font-family: Georgia, serif;
  font-size:clamp(24px, 2.4vw, 36px);
  line-height: 1.13;
  letter-spacing: -0.025em;
}

.recommendation-field cite {
  color: var(--muted);
  font: 500 9px/1.3 var(--mono);
  font-style: normal;
  text-transform: uppercase;
}

.recommendation-field blockquote > small {
  margin-top: auto;
  padding-top: 26px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.voice-path {
  position: absolute;
  z-index: 4;
  top: 78px;
  left: 30px;
  right: 30px;
  height: 1px;
  background: var(--line-strong);
  pointer-events: none;
}

.voice-path i {
  position: absolute;
  top: -5px;
  left: 0;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 5px color-mix(in srgb, var(--signal) 20%, transparent);
}

.recommendations.is-current .voice-path i {
  animation: voiceTravel 4.8s ease-in-out infinite;
}

.recommendation-consensus {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 180px minmax(0, 1.2fr) minmax(260px, 0.7fr);
  gap: 22px;
  align-items: center;
  padding: 24px 30px;
  color: #111;
  border-right: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
  background: var(--signal);
}

.recommendation-consensus > span {
  color: #111;
}

.recommendation-consensus strong {
  font-size:18px;
  line-height: 1.3;
}

.recommendation-consensus p {
  margin: 0;
  font-size:12px;
  line-height: 1.45;
}

/* Contact */
.contact {
  display: grid;
  align-items: center;
  color: var(--ink);
  background:
    radial-gradient(circle at 78% 28%, rgba(234, 84, 46, 0.14), transparent 32%),
    var(--paper);
}

.contact .chapter-label {
  color: var(--muted);
}

.contact .chapter-label span {
  color: var(--ink);
  border-color: var(--line-strong);
}

.contact-intro {
  display: grid;
  grid-template-columns: 1.25fr 0.55fr;
  gap: 80px;
  align-items: end;
  margin-bottom: 58px;
}

.contact-intro h2 {
  font-size:clamp(50px, 6vw, 88px);
}

.contact-intro p {
  margin: 0 0 6px;
  color: var(--muted);
  font-size:17px;
  line-height: 1.55;
}

.next-route {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 0 0 28px;
  padding: 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  list-style: none;
}

.next-route li {
  min-height: 118px;
  display: grid;
  grid-template-columns: 36px 1fr;
  align-content: center;
  gap: 6px 14px;
  padding: 22px;
  border-right: 1px solid var(--line);
}

.next-route li:last-child {
  border-right: 0;
}

.next-route span {
  grid-row: 1 / 3;
  color: var(--signal);
  font: 500 10px/1.2 var(--mono);
}

.next-route b {
  font-size:18px;
}

.next-route small {
  color: var(--muted);
  font-size:12px;
}

.contact-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.contact-actions a {
  min-height: 50px;
  display: inline-flex;
  align-items: center;
  padding: 0 20px;
  border: 1px solid var(--line-strong);
  font: 600 11px/1 var(--mono);
  text-decoration: none;
}

.contact-actions .contact-primary {
  margin-right: 10px;
  color: #111;
  border-color: var(--signal);
  background: var(--signal);
}

.contact-register {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin: 24px 0 0;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.contact-register div {
  min-width: 0;
  padding: 14px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.contact-register dt,
.contact-register dd {
  margin: 0;
}

.contact-register dt {
  margin-bottom: 6px;
  color: var(--muted);
  font: 500 8px/1.2 var(--mono);
  text-transform: uppercase;
}

.contact-register dd {
  color: var(--ink);
  font-size:11px;
}

.contact-register i {
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 7px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 4px rgba(182, 246, 107, 0.16);
}

footer {
  min-height: 58px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(18px, 3vw, 48px);
  color: var(--muted);
  border-top: 1px solid var(--line);
  background: var(--paper);
  font: 500 9px/1 var(--mono);
  text-transform: uppercase;
}

:root[data-theme="dark"] .contact {
  background:
    radial-gradient(circle at 78% 28%, rgba(255, 112, 72, 0.14), transparent 32%),
    var(--dark);
}

:root[data-theme="dark"] footer {
  background: var(--dark);
}

@keyframes drift {
  to { transform: translate(28px, -13px); }
}

@keyframes pulse {
  50% { transform: scale(1.8); opacity: 0.48; }
}

@keyframes travel {
  0% { left: 148px; opacity: 0; }
  8% { opacity: 1; }
  92% { opacity: 1; }
  100% { left: calc(100% - 150px); opacity: 0; }
}

@keyframes journeyTravel {
  0% { left: 10%; opacity: 0; }
  8% { opacity: 1; }
  92% { opacity: 1; }
  100% { left: calc(90% - 14px); opacity: 0; }
}

@keyframes operatingTravel {
  0% { left: 0; opacity: 0; }
  12%, 88% { opacity: 1; }
  100% { left: calc(100% - 11px); opacity: 0; }
}

@keyframes voiceTravel {
  0% { left: 0; opacity: 0; }
  12%, 88% { opacity: 1; }
  100% { left: calc(100% - 11px); opacity: 0; }
}

@keyframes scaleTravel {
  0% { left: 0; opacity: 0; }
  15%, 85% { opacity: 1; }
  100% { left: calc(100% - 9px); opacity: 0; }
}

@keyframes resourceRise {
  from { transform: scaleY(0.62); opacity: 0.65; }
  to { transform: scaleY(1); opacity: 1; }
}

@keyframes orbit {
  to { transform: rotate(360deg); }
}

@keyframes lanePulse {
  0%, 15% { transform: translateX(0); opacity: 0; }
  35%, 75% { opacity: 1; }
  100% { transform: translateX(30px); opacity: 0; }
}

@keyframes caseReveal {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (min-width: 1050px) and (min-height: 760px) {
  html {
    scroll-snap-type: y proximity;
  }

  .chapter {
    scroll-snap-align: start;
    scroll-snap-stop: normal;
  }
}

@media (max-width: 1180px) {
  .site-header {
    grid-template-columns: 150px minmax(0, 1fr) auto;
  }

  .brand small {
    display: none;
  }

  .chapter-nav {
    justify-content: flex-start;
  }

  .hero-shell {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 50px;
  }

  .proof-console {
    grid-template-columns: 1fr 1fr;
  }

  .people-field {
    max-width: 420px;
  }

  .ecosystem {
    min-height: auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    padding-top: 220px;
  }

  .ecosystem-core {
    top: 0;
    transform: translate(-50%, 0);
  }

  .build {
    position: static;
    width: auto;
    min-height: 148px;
  }

  .ecosystem-lines {
    display: none;
  }

  .method-loop {
    grid-template-columns: 120px minmax(0, 1fr) 120px;
  }

  .signal-packet {
    left: 118px;
  }

  @keyframes travel {
    0% { left: 118px; opacity: 0; }
    8% { opacity: 1; }
    92% { opacity: 1; }
    100% { left: calc(100% - 120px); opacity: 0; }
  }
}

@media (max-width: 900px) {
  .site-header {
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 12px;
    padding: 0 18px;
  }

  .chapter-nav a {
    padding: 0 8px;
  }

  .chapter-nav a span {
    display: none;
  }

  .section-shell {
    width: min(100% - 36px, 760px);
  }

  .chapter {
    min-height: auto;
    padding: 102px 0 70px;
  }

  .hero {
    min-height: 100svh;
  }

  .hero-shell,
  .section-heading,
  .contact-intro {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .hero-shell {
    padding-bottom: 40px;
  }

  h1 {
    font-size:clamp(58px, 13vw, 88px);
  }

  h2 {
    font-size:clamp(41px, 9vw, 62px);
  }

  .section-heading > p {
    margin-left: 0;
  }

  .proof-console {
    grid-template-columns: 1fr 1fr;
  }

  .case-body {
    grid-template-columns: 1fr;
    padding-left: 0;
  }

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

  .board-head {
    display: none;
  }

  .signal-lane {
    grid-template-columns: 1fr 28px 1fr;
    grid-template-rows: auto auto;
    gap: 7px;
    padding: 16px;
  }

  .signal-lane > strong {
    grid-column: 1 / 2;
    grid-row: 2;
  }

  .signal-lane > em:last-of-type {
    grid-column: 2;
    grid-row: 2;
  }

  .signal-lane > span:last-child {
    grid-column: 3;
    grid-row: 2;
  }

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

  .loop-input,
  .loop-output {
    min-height: 100px;
    border: 0;
  }

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

  .method-loop li:nth-child(n+4) {
    border-bottom: 1px solid var(--line);
  }

  .method-loop li:nth-child(n+5) {
    border-bottom: 0;
  }

  .signal-packet {
    display: none;
  }

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

  .operating-principles article:nth-of-type(2) {
    border-right: 0;
  }

  .operating-line {
    display: none;
  }

  .journey-stages {
    grid-template-columns: repeat(5, minmax(190px, 1fr));
    min-width: 950px;
  }

  .career-journey {
    overflow-x: auto;
  }

  .learning-rail,
  .journey-thesis {
    min-width: 950px;
  }

  .recommendation-field {
    grid-template-columns: 1fr;
  }

  .recommendation-field blockquote {
    min-height: 280px;
  }

  .recommendation-field blockquote p {
    margin-top: 46px;
  }

  .voice-path {
    display: none;
  }

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

@media (max-width: 640px) {
  .site-header {
    height: 62px;
    grid-template-columns: auto 1fr auto;
  }

  .chapter-nav {
    position: absolute;
    top: 62px;
    left: 0;
    right: 0;
    height: 38px;
    padding: 0 10px;
    border-bottom: 1px solid var(--line);
    background: var(--nav);
  }

  .site-header.is-on-dark .chapter-nav {
    background: rgba(8, 10, 7, 0.95);
  }

  .chapter-nav a {
    min-width: 62px;
    justify-content: center;
    font-size:11px;
  }

  .theme-toggle {
    width: 38px;
    height: 38px;
  }

  .cv-link {
    min-height: 38px;
    padding: 0 12px;
  }

  .chapter {
    padding-top: 120px;
  }

  .hero {
    padding-top: 138px;
  }

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

  h1 {
    font-size:clamp(52px, 17vw, 74px);
  }

  h2,
  .contact-intro h2 {
    font-size:clamp(38px, 12vw, 54px);
  }

  .hero-lede {
    font-size:19px;
  }

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

  .decision-console {
    padding: 16px;
  }

  .console-head {
    flex-direction: column;
    gap: 8px;
  }

  .console-flow {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 25px 4px;
  }

  .hero-facts {
    grid-template-columns: repeat(2, 1fr);
    row-gap: 14px;
  }

  .hero-facts div:nth-child(2) {
    border-right: 0;
  }

  .career-journey {
    overflow: hidden;
  }

  .journey-stages {
    min-width: 0;
    min-height: 0;
    grid-template-columns: 1fr;
    padding: 12px;
  }

  .journey-stages::before {
    top: 34px;
    bottom: 34px;
    left: 35px;
    right: auto;
    width: 2px;
    height: auto;
  }

  .journey-stages li {
    min-height: 0;
    padding: 16px 0 16px 62px;
    border-right: 0;
  }

  .journey-year {
    position: static;
    display: block;
    margin-bottom: 9px;
  }

  .journey-stages li > i {
    top: 20px;
    left: 16px;
  }

  .journey-stages article {
    height: auto;
    min-height: 0;
    padding: 18px;
  }

  .journey-stages article small {
    min-height: 0;
    margin-bottom: 22px;
  }

  .journey-stages article b {
    position: static;
    display: block;
    margin-top: 20px;
  }

  .journey-signal {
    display: none;
  }

  .learning-rail,
  .journey-thesis {
    min-width: 0;
    grid-template-columns: 1fr;
  }

  .learning-rail > i {
    width: 1px;
    height: 24px;
    margin-left: 4px;
  }

  .console-flow > i {
    width: 1px;
    height: 14px;
    margin-left: 4px;
  }

  .scroll-cue {
    display: none;
  }

  .proof-console {
    grid-template-columns: 1fr;
  }

  .evidence-card {
    min-height: 0;
  }

  .evidence-value {
    min-height: 70px;
  }

  .case summary {
    grid-template-columns: 34px minmax(0, 1fr) 32px;
    gap: 14px;
  }

  .case summary > strong {
    grid-column: 2;
    color: var(--accent);
  }

  .expand-mark {
    grid-column: 3;
    grid-row: 1 / 3;
  }

  .case summary h3 {
    font-size:27px;
  }

  .twin-model {
    grid-template-columns: 1fr;
  }

  .resource-model {
    grid-template-columns: 1fr;
  }

  .resource-model > em {
    transform: rotate(90deg);
  }

  .migration-route {
    grid-template-columns: repeat(3, 1fr);
    row-gap: 24px;
  }

  .decision-model {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .decision-model > i {
    width: 1px;
    height: 15px;
    margin: auto;
  }

  .decision-model > em {
    grid-column: 1;
  }

  .lab {
    min-height: auto;
  }

  .ecosystem {
    grid-template-columns: 1fr;
    padding-top: 190px;
  }

  .ecosystem-core {
    width: 165px;
    height: 165px;
  }

  .build {
    min-height: auto;
  }

  .board-note {
    grid-template-columns: 1fr;
  }

  .signal-lane {
    grid-template-columns: 1fr 24px 1fr;
  }

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

  .method-loop li,
  .method-loop li:nth-child(n+5) {
    min-height: auto;
    border-bottom: 1px solid var(--line);
  }

  .operating-principles {
    grid-template-columns: 1fr;
  }

  .operating-principles article {
    min-height: auto;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .operating-principles article:nth-of-type(4) {
    border-bottom: 0;
  }

  .operating-principles article h3 {
    margin-top: 42px;
  }

  .operating-principles article small {
    position: static;
    display: block;
    margin-top: 28px;
  }

  .self-correction,
  .recommendation-consensus {
    grid-template-columns: 1fr;
  }

  .recommendation-field blockquote {
    min-height: 320px;
    padding: 24px;
  }

  .recommendation-field blockquote p {
    margin-top: 48px;
    font-size:28px;
  }

  .next-route {
    grid-template-columns: 1fr;
  }

  .next-route li {
    min-height: 90px;
    border-right: 0;
    border-bottom: 1px solid rgba(241, 238, 230, 0.24);
  }

  .next-route li:last-child {
    border-bottom: 0;
  }

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

  .contact-actions a {
    justify-content: center;
  }

  .contact-actions .contact-primary {
    grid-column: 1 / -1;
    margin-right: 0;
  }

  .contact-register {
    grid-template-columns: 1fr;
  }

  footer {
    min-height: 76px;
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    gap: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
    scroll-snap-type: none;
  }

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

  .reveal,
  .project-matrix i,
  .journey-stages article {
    opacity: 1;
    transform: none;
  }

  .evidence-meter b {
    transform: scaleX(1);
  }

  .signal-lane > em::after,
  .signal-packet {
    display: none;
  }
}