@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600&family=Instrument+Sans:wdth,wght@75..100,400..700&display=swap");

:root {
  --paper: #f3f0e8;
  --paper-2: #e8e4da;
  --ink: #17201d;
  --ink-soft: #46504c;
  --muted: #6d756f;
  --rule: rgba(23, 32, 29, 0.16);
  --rule-soft: rgba(23, 32, 29, 0.08);
  --teal: #126a67;
  --teal-dark: #0b4e4b;
  --teal-soft: #c9ded8;
  --orange: #e56a35;
  --orange-soft: #f2c4a7;
  --lichen: #d7b84a;
  --clay: #b96752;
  --carbon: #111715;
  --carbon-2: #18211e;
  --mist: #d8e1dc;
  --signal: #71d7a2;
  --signal-soft: rgba(113, 215, 162, 0.2);
  --on-accent: #ffffff;
  --on-warm: #17201d;
  --on-clay: #ffffff;
  --numbers-bg: #e7e9e2;
  --method-bg: #dfe6de;
  --method-board-bg: #f3f0e8;
  --method-track-bg: #e9ede7;
  --method-track-text: #46504c;
  --method-track-rule: rgba(23, 32, 29, 0.12);
  --method-selected-bg: #d7b84a;
  --method-selected-text: #17201d;
  --method-state-four: #cfdbd4;
  --lab-bg: #dfe6de;
  --lab-text: #17201d;
  --lab-muted: #59655f;
  --lab-accent: #126a67;
  --lab-grid-glow: rgba(18, 106, 103, 0.09);
  --lab-grid-line: rgba(23, 32, 29, 0.06);
  --lab-node-bg: #f3f0e8;
  --lab-node-text: #17201d;
  --lab-node-border: rgba(23, 32, 29, 0.22);
  --lab-selected-bg: #126a67;
  --lab-selected-text: #ffffff;
  --lab-edge: rgba(18, 106, 103, 0.34);
  --lab-detail-bg: #f3f0e8;
  --lab-detail-rule: rgba(23, 32, 29, 0.16);
  --lab-link-bg: #126a67;
  --lab-link-text: #ffffff;
  --person-bg: #e8dccc;
  --principle-four-bg: #cbd9ce;
  --working-note-bg: #f2e8b9;
  --shadow: 0 24px 70px rgba(23, 32, 29, 0.09);
  --shell: min(1180px, calc(100vw - 48px));
  --sans: "Instrument Sans", "Helvetica Neue", Arial, sans-serif;
  --mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
}

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

html {
  scroll-behavior: smooth;
  background: var(--paper);
}

body {
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  font-size:16px;
  line-height: 1.5;
  font-variant-numeric: tabular-nums;
  -webkit-font-smoothing: antialiased;
}

button,
a {
  font: inherit;
}

a {
  color: inherit;
}

button {
  color: inherit;
}

:focus-visible {
  outline: 3px solid var(--orange);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 200;
  transform: translateY(-150%);
  padding: 10px 14px;
  color: white;
  background: var(--ink);
}

.skip-link:focus {
  transform: none;
}

.site-header {
  position: fixed;
  z-index: 100;
  top: 0;
  left: 0;
  right: 0;
  height: 74px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 32px;
  padding: 0 max(24px, calc((100vw - 1180px) / 2));
  color: var(--ink);
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(16px);
  transition: border-color 180ms ease, background 180ms ease, color 180ms ease;
}

.site-header.is-dark {
  color: var(--mist);
  background: color-mix(in srgb, var(--carbon) 88%, transparent);
  border-color: rgba(216, 225, 220, 0.12);
}

.brand {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  font-size:22px;
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1;
}

.brand-dot {
  color: var(--orange);
}

.brand small {
  margin-top: 5px;
  font: 500 9px/1 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.site-header nav {
  justify-self: center;
  display: flex;
  align-items: center;
  gap: clamp(18px, 2.4vw, 34px);
}

.site-header nav a,
.header-action {
  position: relative;
  text-decoration: none;
  font: 500 11px/1 var(--mono);
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.site-header nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -8px;
  height: 2px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 220ms ease-out;
}

.site-header nav a:hover::after,
.site-header nav a:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left;
}

.header-action {
  padding: 12px 15px;
  border: 1px solid currentColor;
  border-radius: 999px;
}

.progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
}

.progress span {
  display: block;
  width: 0;
  height: 100%;
  background: var(--orange);
}

.chapter {
  position: relative;
  overflow: hidden;
}

.section-shell {
  width: var(--shell);
  margin-inline: auto;
  padding-block: clamp(100px, 12vw, 160px);
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 28px;
  color: var(--muted);
  font: 600 11px/1 var(--mono);
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.eyebrow span {
  color: var(--teal);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(260px, 0.55fr);
  align-items: end;
  gap: 60px;
  margin-bottom: 60px;
}

.section-heading h2,
.handover h2 {
  max-width: 820px;
  margin: 0;
  font-size:clamp(42px, 6.5vw, 82px);
  font-weight: 580;
  letter-spacing: -0.065em;
  line-height: 0.96;
}

.section-heading > p,
.hero-lede,
.handover-title > p {
  max-width: 540px;
  margin: 0;
  color: var(--ink-soft);
  font-size:clamp(17px, 1.7vw, 21px);
  line-height: 1.5;
}

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

.js .reveal {
  opacity: 0;
  transform: translateY(16px);
}

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

.js .reveal.is-visible {
  opacity: 1;
  transform: none;
  transition: opacity 560ms ease-out, transform 560ms ease-out;
}

/* Hero */
.hero {
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-top: 74px;
  background: var(--paper);
}

.baseline-grid,
.lab-grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.baseline-grid {
  opacity: 0.4;
  background-image:
    linear-gradient(var(--rule-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--rule-soft) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, transparent 0, black 22%, black 75%, transparent 100%);
}

.hero-shell {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(340px, 0.72fr);
  align-items: center;
  gap: clamp(50px, 8vw, 110px);
}

.hero h1 {
  margin: 0;
  max-width: 840px;
  font-size:clamp(64px, 10vw, 138px);
  font-weight: 620;
  letter-spacing: -0.08em;
  line-height: 0.82;
}

.hero h1 em {
  position: relative;
  color: var(--teal);
  font-style: normal;
}

.hero h1 em::after {
  content: "";
  position: absolute;
  left: 0.03em;
  right: -0.02em;
  bottom: 0.02em;
  height: 0.07em;
  background: var(--orange);
  transform: scaleX(0);
  transform-origin: left;
}

.hero.is-ready h1 em::after {
  transform: scaleX(1);
  transition: transform 900ms cubic-bezier(0.22, 1, 0.36, 1) 500ms;
}

.hero-lede {
  margin-top: 38px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-top: 36px;
}

.button,
.text-link {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font: 600 12px/1 var(--mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.button {
  padding: 15px 20px;
}

.button-primary {
  color: var(--on-accent);
  background: var(--teal);
}

.text-link {
  border-bottom: 1px solid var(--ink);
}

.control-card {
  padding: clamp(24px, 3vw, 38px);
  background: color-mix(in srgb, white 62%, var(--paper));
  border: 1px solid var(--rule);
  box-shadow: var(--shadow);
}

.control-card-head {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--rule);
  color: var(--muted);
  font: 500 10px/1.2 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.live {
  color: var(--teal);
}

.live i {
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 8px;
  border-radius: 50%;
  background: var(--orange);
}

.constraint {
  position: relative;
  display: grid;
  gap: 0;
  margin-top: 20px;
}

.constraint::before {
  content: "";
  position: absolute;
  top: 12px;
  bottom: 12px;
  left: 13px;
  width: 2px;
  background: var(--rule);
}

.constraint-step {
  position: relative;
  display: grid;
  grid-template-columns: 28px 1fr;
  column-gap: 15px;
  padding: 13px 0;
}

.constraint-step > span {
  z-index: 1;
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border: 1px solid var(--rule);
  border-radius: 50%;
  background: var(--paper);
  font: 600 9px/1 var(--mono);
}

.constraint-step.complete > span {
  color: var(--on-accent);
  background: var(--teal);
  border-color: var(--teal);
}

.constraint-step.active > span {
  background: var(--orange-soft);
  border-color: var(--orange);
}

.constraint-step strong {
  align-self: end;
  font-size:17px;
}

.constraint-step small {
  grid-column: 2;
  color: var(--muted);
  font-size:13px;
}

.control-note {
  margin: 24px 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--rule);
  font-size:18px;
  font-weight: 600;
}

.hero-line {
  position: absolute;
  left: max(24px, calc((100vw - 1180px) / 2));
  right: max(24px, calc((100vw - 1180px) / 2));
  bottom: 26px;
  height: 2px;
  background: var(--rule);
}

.hero-line span {
  display: block;
  width: 0;
  height: 100%;
  background: var(--teal);
}

.hero.is-ready .hero-line span {
  width: 72%;
  transition: width 900ms cubic-bezier(0.22, 1, 0.36, 1) 250ms;
}

/* Metrics */
.numbers {
  background: var(--numbers-bg);
}

.instrument-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 14px;
}

.instrument {
  grid-column: span 4;
  min-height: 320px;
  display: flex;
  flex-direction: column;
  padding: 26px;
  background: var(--paper);
  border-top: 3px solid var(--teal);
}

.instrument-wide {
  grid-column: span 8;
}

.instrument-portfolio {
  grid-column: span 6;
}

.instrument:nth-child(2) {
  border-color: var(--orange);
}

.instrument:nth-child(3) {
  border-color: var(--clay);
}

.instrument:nth-child(5) {
  border-color: var(--lichen);
}

.instrument-top {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  color: var(--muted);
  font: 600 10px/1.2 var(--mono);
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.metric {
  display: flex;
  align-items: baseline;
  gap: 3px;
  margin: 36px 0 20px;
  font-family: var(--mono);
  line-height: 1;
}

.metric strong {
  font-size:clamp(54px, 7vw, 96px);
  font-weight: 500;
  letter-spacing: -0.08em;
}

.metric b {
  font-size:clamp(28px, 3vw, 42px);
  font-weight: 500;
}

.metric-money strong {
  font-size:clamp(48px, 6vw, 82px);
}

.instrument > p {
  max-width: 38ch;
  margin: auto 0 0;
  color: var(--ink-soft);
  font-size:14px;
}

.confidence-chart {
  position: relative;
  height: 92px;
  margin: 5px 0 26px;
  border-bottom: 1px solid var(--rule);
}

.band {
  position: absolute;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  padding-left: 10px;
  color: var(--ink);
  font: 500 9px/1 var(--mono);
  text-transform: uppercase;
}

.band.before {
  top: 12px;
  width: 90%;
  height: 26px;
  background: var(--paper-2);
}

.band.after {
  bottom: 12px;
  width: 58%;
  height: 18px;
  background: var(--teal-soft);
}

.reference-line {
  position: absolute;
  left: 63%;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--orange);
}

.capacity {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 5px;
  margin-top: 8px;
}

.capacity i {
  height: 42px;
  background: var(--paper-2);
}

.capacity i.filled {
  background: var(--orange-soft);
}

.elapsed {
  display: grid;
  gap: 8px;
}

.elapsed span {
  height: 22px;
  display: flex;
  align-items: center;
  padding-inline: 8px;
  color: var(--ink);
  background: var(--paper-2);
  font: 500 9px/1 var(--mono);
  text-transform: uppercase;
}

.elapsed .old {
  width: 100%;
}

.elapsed .new {
  width: 64%;
  background: var(--clay);
  color: white;
}

.project-ticks {
  display: grid;
  grid-template-columns: repeat(15, 1fr);
  gap: 7px;
  margin: 42px 0 26px;
}

.project-ticks i {
  height: 52px;
  background: var(--paper-2);
  border-radius: 999px;
}

.project-ticks i.active {
  background: var(--teal);
}

.portfolio-key {
  display: flex;
  gap: 28px;
  margin-top: auto;
  color: var(--muted);
  font: 500 10px/1.2 var(--mono);
  text-transform: uppercase;
}

.portfolio-key i {
  display: inline-block;
  width: 9px;
  height: 9px;
  margin-right: 7px;
  border-radius: 50%;
  background: var(--paper-2);
}

.portfolio-key .key-active {
  background: var(--teal);
}

.adoption {
  height: 72px;
  display: flex;
  align-items: end;
  gap: 7px;
}

.adoption i {
  flex: 1;
  height: 25%;
  background: var(--lichen);
}

.adoption i:nth-child(2) { height: 38%; }
.adoption i:nth-child(3) { height: 52%; }
.adoption i:nth-child(4) { height: 62%; }
.adoption i:nth-child(5) { height: 78%; }
.adoption i:nth-child(6) { height: 100%; }

.scale {
  position: relative;
  display: flex;
  justify-content: space-between;
  margin-top: 12px;
  padding-top: 18px;
  border-top: 2px solid var(--rule);
  color: var(--muted);
  font: 500 9px/1 var(--mono);
}

.scale span {
  position: absolute;
  top: -6px;
  right: 0;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--teal);
}

/* Dossiers */
.work {
  background: var(--paper);
}

.dossier-layout {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}

.dossier-index {
  border-right: 1px solid var(--rule);
}

.dossier-index button {
  width: 100%;
  min-height: 96px;
  display: grid;
  grid-template-columns: 34px 1fr;
  grid-template-rows: auto auto;
  align-content: center;
  column-gap: 14px;
  padding: 18px 20px;
  text-align: left;
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--rule);
  cursor: pointer;
  transition: background 180ms ease, padding-left 180ms ease;
}

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

.dossier-index button:hover {
  padding-left: 26px;
}

.dossier-index button[aria-selected="true"] {
  background: var(--teal);
  color: var(--on-accent);
}

.dossier-index button > span {
  grid-row: 1 / 3;
  color: currentColor;
  font: 600 10px/1 var(--mono);
  opacity: 0.65;
}

.dossier-index button b {
  font-size:17px;
}

.dossier-index button small {
  font-size:12px;
  opacity: 0.65;
}

.dossier-stage {
  min-height: 590px;
}

.dossier {
  min-height: 590px;
  padding: clamp(30px, 5vw, 64px);
}

.dossier.is-active {
  animation: dossier-in 300ms ease-out both;
}

@keyframes dossier-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}

.dossier-meta {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  color: var(--muted);
  font: 500 10px/1 var(--mono);
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.dossier h3 {
  max-width: 780px;
  margin: 28px 0 18px;
  font-size:clamp(36px, 5vw, 68px);
  font-weight: 560;
  letter-spacing: -0.06em;
  line-height: 0.98;
}

.dossier-lede {
  max-width: 720px;
  margin: 0;
  color: var(--ink-soft);
  font-size:18px;
}

.twin-plant,
.decision-matrix {
  display: grid;
  gap: 12px;
  margin: 44px 0 34px;
}

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

.twin-plant > div {
  min-height: 160px;
  display: grid;
  grid-template-columns: 1fr auto;
  align-content: space-between;
  padding: 22px;
  background: var(--paper-2);
}

.twin-plant > div:last-child {
  background: var(--teal-soft);
}

.twin-plant span,
.twin-plant small {
  color: var(--muted);
  font: 500 9px/1.2 var(--mono);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.twin-plant strong {
  grid-column: 1;
  font-size:26px;
}

.twin-plant small {
  grid-column: 1 / 3;
}

.twin-plant i {
  grid-column: 2;
  grid-row: 1 / 3;
  width: 56px;
  align-self: center;
}

.plant-existing {
  height: 76px;
  background:
    linear-gradient(to top, var(--ink) 0 46%, transparent 46%),
    linear-gradient(90deg, transparent 0 30%, var(--orange) 30% 45%, transparent 45%);
}

.plant-new {
  height: 76px;
  border: 2px dashed var(--teal);
}

.evidence-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin: 0;
  padding-top: 28px;
  border-top: 1px solid var(--rule);
}

.evidence-row div {
  min-width: 0;
}

.evidence-row dt {
  margin-bottom: 7px;
  color: var(--muted);
  font: 500 9px/1 var(--mono);
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.evidence-row dd {
  margin: 0;
  font-size:14px;
  font-weight: 600;
}

.resource-map {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 20px;
  margin: 52px 0;
}

.resource-source,
.resource-out {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  align-items: end;
  gap: 5px;
  height: 90px;
}

.resource-source i,
.resource-out i {
  height: 40%;
  background: var(--paper-2);
}

.resource-source i:nth-child(2) { height: 75%; }
.resource-source i:nth-child(3) { height: 55%; }
.resource-out i { background: var(--teal-soft); }
.resource-out i:nth-child(2) { height: 60%; }
.resource-out i:nth-child(3) { height: 82%; }
.resource-out i:nth-child(4) { height: 65%; }

.resource-source span,
.resource-out span {
  grid-column: 1 / -1;
  color: var(--muted);
  font: 500 9px/1 var(--mono);
  text-transform: uppercase;
}

.resource-merge {
  width: 112px;
  height: 112px;
  display: grid;
  place-items: center;
  border: 2px solid var(--teal);
  border-radius: 50%;
  text-align: center;
  font: 600 10px/1.3 var(--mono);
  text-transform: uppercase;
}

.migration-path {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 60px 0;
  font: 600 10px/1.2 var(--mono);
  text-transform: uppercase;
}

.migration-path span,
.migration-path strong {
  min-height: 62px;
  flex: 1;
  display: grid;
  place-items: center;
  padding: 10px;
  text-align: center;
  background: var(--paper-2);
}

.migration-path strong {
  color: var(--on-accent);
  background: var(--teal);
}

.migration-path i {
  width: 18px;
  height: 1px;
  background: var(--orange);
}

.decision-matrix {
  grid-template-columns: 1fr 44px 1fr;
  align-items: center;
}

.decision-matrix > div {
  min-height: 130px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 20px;
  background: var(--paper-2);
}

.decision-matrix > div:nth-of-type(2) {
  background: var(--teal-soft);
}

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

.decision-join {
  position: relative;
  width: 44px;
  height: 2px;
  background: var(--orange);
}

.decision-join::after {
  content: "";
  position: absolute;
  right: 0;
  top: -4px;
  width: 0;
  height: 0;
  border-left: 7px solid var(--orange);
  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
}

.decision-matrix > strong {
  grid-column: 1 / -1;
  padding: 16px 20px;
  color: var(--on-accent);
  background: var(--teal);
  text-align: center;
  font: 600 11px/1.2 var(--mono);
  text-transform: uppercase;
}

/* Lab */
.lab {
  color: var(--lab-text);
  background: var(--lab-bg);
}

.lab-grid {
  opacity: 0.4;
  background-image:
    radial-gradient(circle at center, var(--lab-grid-glow), transparent 45%),
    linear-gradient(var(--lab-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--lab-grid-line) 1px, transparent 1px);
  background-size: auto, 40px 40px, 40px 40px;
}

.lab-shell {
  position: relative;
  z-index: 2;
}

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

.lab .eyebrow span {
  color: var(--lab-accent);
}

.lab-layout {
  display: grid;
  grid-template-columns: minmax(420px, 1.2fr) minmax(320px, 0.8fr);
  gap: 70px;
  align-items: center;
}

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

.system-node {
  position: absolute;
  z-index: 2;
  min-width: 108px;
  min-height: 52px;
  padding: 12px 15px;
  color: var(--lab-node-text);
  background: var(--lab-node-bg);
  border: 1px solid var(--lab-node-border);
  cursor: pointer;
  font: 600 12px/1.2 var(--mono);
  transition: border-color 180ms ease, background 180ms ease, transform 180ms ease;
}

.system-node:hover,
.system-node.is-selected {
  color: var(--lab-selected-text);
  background: var(--lab-selected-bg);
  border-color: var(--lab-selected-bg);
  transform: translateY(-3px);
}

.system-node span {
  display: block;
  margin-bottom: 6px;
  font-size:11px;
  opacity: 0.55;
}

.system-core {
  top: 50%;
  left: 50%;
  width: 180px;
  height: 180px;
  transform: translate(-50%, -50%);
  display: grid;
  place-items: center;
  align-content: center;
  border-radius: 50%;
  font-size:18px;
}

.system-core:hover,
.system-core.is-selected {
  transform: translate(-50%, calc(-50% - 3px));
}

.system-core small {
  display: block;
  margin-bottom: 9px;
  font-size:11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.65;
}

.system-core i {
  width: 8px;
  height: 8px;
  margin-top: 12px;
  border-radius: 50%;
  background: var(--orange);
}

.n-loom { top: 9%; left: 8%; }
.n-vev { top: 8%; right: 8%; }
.n-smia { bottom: 16%; left: 2%; }
.n-graphify { bottom: 8%; right: 8%; }
.n-wiki { top: 44%; right: -1%; }

.edge {
  position: absolute;
  z-index: 1;
  height: 1px;
  background: var(--lab-edge);
  transform-origin: left;
}

.e1 { width: 31%; top: 27%; left: 23%; transform: rotate(32deg); }
.e2 { width: 29%; top: 27%; left: 53%; transform: rotate(-31deg); }
.e3 { width: 32%; top: 62%; left: 18%; transform: rotate(-26deg); }
.e4 { width: 34%; top: 63%; left: 52%; transform: rotate(27deg); }
.e5 { width: 22%; top: 49%; left: 62%; }

.lab-detail {
  min-height: 520px;
  padding: clamp(26px, 4vw, 46px);
  background: var(--lab-detail-bg);
  border-top: 3px solid var(--lab-accent);
}

.lab-detail > p:first-child {
  margin: 0;
  color: var(--lab-accent);
  font: 600 10px/1.2 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.lab-detail h3 {
  margin: 34px 0 20px;
  font-size:clamp(46px, 6vw, 76px);
  font-weight: 580;
  letter-spacing: -0.06em;
  line-height: 0.95;
}

.lab-detail > p:nth-of-type(2) {
  color: var(--lab-muted);
  font-size:17px;
}

.lab-detail dl {
  margin: 34px 0;
  border-top: 1px solid var(--lab-detail-rule);
}

.lab-detail dl div {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 18px;
  padding: 13px 0;
  border-bottom: 1px solid var(--lab-detail-rule);
}

.lab-detail dt {
  color: var(--lab-muted);
  font: 500 9px/1.4 var(--mono);
  text-transform: uppercase;
}

.lab-detail dd {
  margin: 0;
  font-size:13px;
}

.lab-link {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 0 18px;
  color: var(--lab-link-text);
  background: var(--lab-link-bg);
  text-decoration: none;
  font: 600 11px/1 var(--mono);
  text-transform: uppercase;
}

.lab-link[hidden] {
  display: none;
}

/* Method */
.method {
  background: var(--method-bg);
}

.method-board {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  color: var(--ink);
  background: var(--method-board-bg);
  box-shadow: var(--shadow);
}

.method-track {
  padding: 14px;
  background: var(--method-track-bg);
}

.method-track button {
  width: 100%;
  min-height: 66px;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px 14px;
  color: var(--method-track-text);
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--method-track-rule);
  text-align: left;
  cursor: pointer;
  font-weight: 600;
}

.method-track button[aria-selected="true"] {
  color: var(--method-selected-text);
  background: var(--method-selected-bg);
}

.method-track button span {
  font: 600 9px/1 var(--mono);
  opacity: 0.65;
}

.method-stage {
  min-height: 520px;
  display: grid;
  grid-template-columns: minmax(220px, 0.7fr) minmax(0, 1.3fr);
  align-items: center;
  gap: clamp(35px, 6vw, 80px);
  padding: clamp(34px, 6vw, 74px);
  background: var(--method-board-bg);
}

.artifact {
  min-height: 270px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 22px;
  background: var(--paper-2);
  border: 1px solid var(--rule);
  transition: background 240ms ease, border-radius 240ms ease, transform 240ms ease;
}

.artifact-label {
  color: var(--muted);
  font: 600 9px/1 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.audit-lines {
  display: grid;
  gap: 12px;
}

.audit-lines i {
  height: 10px;
  background: var(--teal-soft);
}

.audit-lines i:nth-child(2) { width: 72%; }
.audit-lines i:nth-child(3) { width: 88%; }
.audit-lines i:nth-child(4) { width: 56%; }
.audit-lines i:nth-child(5) { width: 80%; }

.artifact[data-state="1"] {
  background: var(--teal-soft);
}

.artifact[data-state="2"] {
  border-radius: 50%;
  background: var(--orange-soft);
}

.artifact[data-state="3"] {
  color: var(--on-warm);
  transform: rotate(-2deg);
  background: var(--lichen);
}

.artifact[data-state="3"] .artifact-label {
  color: currentColor;
  opacity: 0.66;
}

.artifact[data-state="4"] {
  background: var(--method-state-four);
  border: 3px double var(--teal);
}

.artifact[data-state="5"] {
  color: var(--on-clay);
  background: var(--clay);
  border-radius: 50% 0 50% 0;
}

.artifact[data-state="5"] .artifact-label {
  color: currentColor;
  opacity: 0.72;
}

.method-copy > p:first-child {
  margin: 0 0 15px;
  color: var(--teal);
  font: 600 10px/1.2 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.method-copy h3 {
  margin: 0 0 22px;
  font-size:clamp(36px, 5vw, 62px);
  font-weight: 560;
  letter-spacing: -0.055em;
  line-height: 1;
}

.method-copy > p:nth-of-type(2) {
  max-width: 590px;
  color: var(--ink-soft);
  font-size:17px;
}

.method-evidence {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 28px;
}

.method-evidence span {
  padding: 8px 11px;
  border: 1px solid var(--rule);
  border-radius: 999px;
  font: 500 9px/1 var(--mono);
  text-transform: uppercase;
}

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

.workshop-wall {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  align-items: start;
  gap: 14px;
}

.principle,
.working-note {
  min-height: 260px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: clamp(22px, 3vw, 34px);
  box-shadow: 0 10px 30px rgba(23, 32, 29, 0.07);
}

.principle {
  grid-column: span 4;
  background: var(--paper);
}

.principle-main {
  grid-column: span 7;
  min-height: 380px;
  color: var(--on-accent);
  background: var(--teal);
}

.principle-tall {
  grid-column: span 5;
  min-height: 380px;
  color: var(--on-warm);
  background: var(--lichen);
  transform: translateY(28px) rotate(1deg);
}

.principle:nth-of-type(3) {
  background: var(--orange-soft);
  transform: rotate(-1deg);
}

.principle:nth-of-type(4) {
  background: var(--principle-four-bg);
}

.working-note {
  grid-column: span 4;
  min-height: 300px;
  background: var(--working-note-bg);
  transform: translateY(-18px) rotate(1deg);
  border-top: 5px solid var(--orange);
}

.principle > span,
.working-note > span {
  margin-bottom: auto;
  font: 600 9px/1.3 var(--mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  opacity: 0.66;
}

.principle h3,
.working-note h3 {
  margin: 36px 0 12px;
  font-size:22px;
}

.principle p,
.working-note p {
  margin: 0;
  font-size:clamp(18px, 2vw, 25px);
  font-weight: 550;
  line-height: 1.25;
}

.principle-main p {
  font-size:clamp(30px, 4vw, 50px);
  letter-spacing: -0.045em;
}

.principle small {
  margin-top: 26px;
  opacity: 0.75;
}

/* Handover */
.handover {
  background: var(--paper);
}

.handover-shell {
  min-height: 88svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.handover-title {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(260px, 0.6fr);
  align-items: end;
  gap: 70px;
}

.tracks {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  margin-top: 70px;
  background: var(--rule);
  border: 1px solid var(--rule);
}

.tracks article {
  min-height: 220px;
  padding: 30px;
  background: var(--paper);
}

.tracks article:first-child {
  border-top: 4px solid var(--teal);
}

.tracks article:last-child {
  border-top: 4px solid var(--orange);
}

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

.tracks h3 {
  margin: 36px 0 12px;
  font-size:24px;
}

.tracks p {
  max-width: 47ch;
  margin: 0;
  color: var(--ink-soft);
}

.contact-actions {
  display: flex;
  align-items: center;
  gap: 30px;
  margin-top: 42px;
}

.contact-actions a {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  border-bottom: 1px solid var(--ink);
  font: 600 11px/1 var(--mono);
  text-transform: uppercase;
}

.contact-actions .contact-primary {
  padding: 0 18px;
  color: var(--on-accent);
  background: var(--teal);
  border: 0;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  padding: 22px max(24px, calc((100vw - 1180px) / 2));
  color: #9ca9a3;
  background: var(--carbon);
  font: 500 9px/1.2 var(--mono);
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

@media (max-width: 980px) {
  .site-header {
    grid-template-columns: auto 1fr;
  }

  .site-header nav {
    display: none;
  }

  .header-action {
    justify-self: end;
  }

  .hero-shell,
  .section-heading,
  .handover-title,
  .lab-layout {
    grid-template-columns: 1fr;
  }

  .hero-shell {
    gap: 60px;
  }

  .hero {
    min-height: auto;
  }

  .control-card {
    max-width: 600px;
  }

  .instrument,
  .instrument-wide,
  .instrument-portfolio {
    grid-column: span 6;
  }

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

  .dossier-index {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    border-right: 0;
    border-bottom: 1px solid var(--rule);
  }

  .dossier-index button {
    min-height: 100px;
    grid-template-columns: 1fr;
    border-right: 1px solid var(--rule);
    border-bottom: 0;
  }

  .dossier-index button > span {
    grid-row: auto;
  }

  .lab-layout {
    gap: 25px;
  }

  .system-map {
    min-height: 520px;
  }

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

  .method-track {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
  }

  .method-track button {
    border-right: 1px solid rgba(255, 255, 255, 0.1);
  }

  .principle-main,
  .principle-tall {
    grid-column: span 6;
  }

  .principle,
  .working-note {
    grid-column: span 6;
  }
}

@media (max-width: 680px) {
  :root {
    --shell: min(100% - 32px, 1180px);
  }

  .site-header {
    height: 68px;
    padding-inline: 16px;
  }

  .brand small {
    display: none;
  }

  .header-action {
    padding: 10px 12px;
    font-size:11px;
  }

  .section-shell {
    padding-block: 86px;
  }

  .hero {
    padding-top: 68px;
  }

  .hero-shell {
    padding-top: 80px;
  }

  .hero h1 {
    font-size:clamp(58px, 20vw, 84px);
  }

  .hero-actions,
  .contact-actions {
    align-items: flex-start;
    flex-direction: column;
    gap: 14px;
  }

  .section-heading {
    gap: 26px;
    margin-bottom: 40px;
  }

  .instrument,
  .instrument-wide,
  .instrument-portfolio {
    grid-column: 1 / -1;
  }

  .dossier-index {
    grid-template-columns: 1fr 1fr;
  }

  .dossier-index button {
    border-bottom: 1px solid var(--rule);
  }

  .dossier-stage,
  .dossier {
    min-height: auto;
  }

  .twin-plant,
  .evidence-row,
  .decision-matrix,
  .resource-map,
  .method-stage,
  .tracks {
    grid-template-columns: 1fr;
  }

  .decision-join {
    width: 2px;
    height: 28px;
    margin-inline: auto;
  }

  .decision-join::after {
    display: none;
  }

  .migration-path {
    align-items: stretch;
    flex-direction: column;
  }

  .migration-path i {
    width: 1px;
    height: 12px;
    margin-inline: auto;
  }

  .resource-merge {
    margin-inline: auto;
  }

  .system-map {
    min-height: auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-bottom: 26px;
  }

  .system-node,
  .system-core {
    position: static;
    width: auto;
    height: auto;
    min-height: 60px;
    transform: none;
    border-radius: 0;
  }

  .system-core {
    grid-column: 1 / -1;
    grid-row: 1;
  }

  .system-core:hover,
  .system-core.is-selected,
  .system-node:hover,
  .system-node.is-selected {
    transform: none;
  }

  .edge {
    display: none;
  }

  .lab-detail {
    min-height: auto;
  }

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

  .method-stage {
    gap: 34px;
  }

  .artifact {
    min-height: 190px;
  }

  .principle,
  .principle-main,
  .principle-tall,
  .working-note {
    grid-column: 1 / -1;
    min-height: 260px;
    transform: none;
  }

  .tracks {
    gap: 1px;
  }

  footer {
    flex-direction: column;
    gap: 8px;
  }
}

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

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

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

  .hero h1 em::after,
  .hero-line span {
    transform: none;
    width: 72%;
  }
}

/* Restored direction: only the capabilities proven necessary in later CVs. */
:root[data-theme="dark"] {
  color-scheme: dark;
  --paper: #111715;
  --paper-2: #18211e;
  --ink: #f1f3ef;
  --ink-soft: #c1cbc5;
  --muted: #9ba7a1;
  --rule: rgba(241, 243, 239, 0.18);
  --rule-soft: rgba(241, 243, 239, 0.09);
  --teal: #71d7a2;
  --teal-dark: #8be5b6;
  --teal-soft: #173d31;
  --orange: #ff7a4d;
  --orange-soft: #5b2b1e;
  --on-accent: #111715;
  --on-warm: #111715;
  --numbers-bg: #0d1512;
  --method-bg: #0d1512;
  --method-board-bg: #18211e;
  --method-track-bg: #090f0d;
  --method-track-text: #bdc9c3;
  --method-track-rule: rgba(241, 243, 239, 0.13);
  --method-selected-bg: #d7b84a;
  --method-selected-text: #111715;
  --method-state-four: #234036;
  --lab-bg: #111715;
  --lab-text: #d8e1dc;
  --lab-muted: #9ca9a3;
  --lab-accent: #71d7a2;
  --lab-grid-glow: rgba(113, 215, 162, 0.07);
  --lab-grid-line: rgba(216, 225, 220, 0.04);
  --lab-node-bg: #18211e;
  --lab-node-text: #d8e1dc;
  --lab-node-border: rgba(216, 225, 220, 0.2);
  --lab-selected-bg: #71d7a2;
  --lab-selected-text: #111715;
  --lab-edge: rgba(113, 215, 162, 0.32);
  --lab-detail-bg: #1a2421;
  --lab-detail-rule: rgba(216, 225, 220, 0.15);
  --lab-link-bg: #71d7a2;
  --lab-link-text: #111715;
  --person-bg: #171411;
  --principle-four-bg: #24372f;
  --working-note-bg: #40371d;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.28);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.theme-toggle {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  gap: 9px;
  padding: 0 13px;
  color: inherit;
  border: 1px solid currentColor;
  background: transparent;
  font: 600 9px/1 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
}

.theme-toggle i {
  width: 9px;
  height: 9px;
  border: 1px solid currentColor;
  border-radius: 50%;
  background: transparent;
}

.theme-toggle[aria-pressed="true"] i {
  background: var(--orange);
}

.screening-facts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  margin: 20px 0 0;
  border-top: 1px solid var(--rule);
}

.screening-facts div {
  padding-top: 13px;
}

.screening-facts div + div {
  padding-left: 18px;
  border-left: 1px solid var(--rule);
}

.screening-facts dt {
  color: var(--muted);
  font: 500 8px/1 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.screening-facts dd {
  margin: 6px 0 0;
  font-size:13px;
  font-weight: 650;
}

.route,
.voices {
  background: var(--paper);
}

.career-line {
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  margin-top: 56px;
  border-top: 2px solid var(--ink);
}

.career-line::before {
  position: absolute;
  top: -7px;
  left: 0;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--orange);
  content: "";
  animation: career-travel 7s ease-in-out infinite;
}

@keyframes career-travel {
  0%, 8% { left: 0; }
  92%, 100% { left: calc(100% - 13px); }
}

.career-line article {
  min-height: 220px;
  padding: 28px 18px 22px;
  border-right: 1px solid var(--rule);
}

.career-line article:first-of-type {
  border-left: 1px solid var(--rule);
}

.career-line article span,
.study-track span,
.voice-field blockquote > span,
.voice-consensus span {
  color: var(--orange);
  font: 600 9px/1.2 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.career-line article strong {
  display: block;
  margin-top: 30px;
  font-size:clamp(20px, 2vw, 29px);
  line-height: 1;
}

.career-line article p {
  margin: 16px 0 0;
  color: var(--ink-soft);
  font-size:13px;
}

.study-track {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1.1fr 2fr 2fr;
  gap: 18px;
  align-items: center;
  padding: 18px;
  color: var(--ink);
  background: var(--teal-soft);
}

.study-track b {
  font-size:12px;
  font-weight: 600;
}

.voice-field {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 56px;
  border: 1px solid var(--rule);
}

.voice-field blockquote {
  min-height: 270px;
  margin: 0;
  padding: clamp(24px, 3vw, 42px);
  border-right: 1px solid var(--rule);
}

.voice-field blockquote:nth-child(3) {
  border-right: 0;
}

.voice-field blockquote p {
  margin: 54px 0 30px;
  font-size:clamp(22px, 2.5vw, 34px);
  font-weight: 600;
  line-height: 1.02;
  letter-spacing: -0.025em;
}

.voice-field cite {
  color: var(--muted);
  font: 500 10px/1.5 var(--mono);
  font-style: normal;
}

.voice-consensus {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 28px;
  align-items: center;
  padding: 24px clamp(24px, 3vw, 42px);
  color: var(--paper);
  background: var(--ink);
}

.voice-consensus strong {
  font-size:clamp(18px, 2vw, 28px);
  line-height: 1.1;
}

:root[data-theme="dark"] .control-card,
:root[data-theme="dark"] .instrument,
:root[data-theme="dark"] .dossier-layout {
  background: var(--paper-2);
}

:root[data-theme="dark"] .voice-consensus {
  color: #111715;
  background: #f1f3ef;
}

@media (max-width: 980px) {
  .site-header {
    grid-template-columns: auto 1fr;
  }

  .header-actions {
    justify-self: end;
  }

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

  .study-track {
    grid-column: 1 / -1;
  }

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

  .voice-field blockquote {
    min-height: 0;
    border-right: 0;
    border-bottom: 1px solid var(--rule);
  }
}

@media (max-width: 680px) {
  .header-actions {
    gap: 7px;
  }

  .theme-toggle {
    width: 38px;
    padding: 0;
    justify-content: center;
    font-size:0;
  }

  .career-line {
    grid-template-columns: 1fr;
  }

  .career-line article {
    min-height: 0;
    border-left: 1px solid var(--rule);
    border-bottom: 1px solid var(--rule);
  }

  .study-track,
  .voice-consensus {
    grid-template-columns: 1fr;
  }
}