@font-face {
  font-family: "Onest";
  src: url("fonts/onest-var.woff2") format("woff2");
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
}

@font-face {
  font-family: "JetBrains Mono";
  src: url("fonts/jetbrains-mono-var.woff2") format("woff2");
  font-style: normal;
  font-weight: 100 800;
  font-display: swap;
}

:root {
  --canvas: oklch(0.075 0.012 150);
  --canvas-deep: oklch(0.035 0.006 150);
  --surface: oklch(0.12 0.014 150);
  --surface-raised: oklch(0.165 0.022 150);
  --ink: oklch(0.965 0.006 150);
  --ink-soft: oklch(0.84 0.016 150);
  --ink-faint: oklch(0.7 0.022 150);
  --rule: oklch(0.285 0.025 150);
  --rule-strong: oklch(0.41 0.055 150);
  --primary: oklch(0.86 0.235 148);
  --primary-strong: oklch(0.74 0.205 148);
  --primary-dark: oklch(0.47 0.13 148);
  --button-ink: oklch(0.09 0.018 150);
  --font-body: "Onest", "Segoe UI", system-ui, sans-serif;
  --font-data: "JetBrains Mono", Consolas, monospace;
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: clamp(4rem, 9vw, 7rem);
  --container: 74rem;
  --rail-width: 8.5rem;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  color-scheme: dark;
}

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

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

body {
  margin: 0;
  color: var(--ink);
  background: var(--canvas);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.68;
  font-kerning: normal;
  font-optical-sizing: auto;
  overflow-wrap: anywhere;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
  text-underline-offset: 0.2em;
}

a:focus-visible,
summary:focus-visible {
  outline: 0.2rem solid var(--primary);
  outline-offset: 0.22rem;
}

.skip-link {
  position: fixed;
  z-index: 30;
  top: var(--space-sm);
  left: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  color: var(--button-ink);
  background: var(--primary);
  font-weight: 760;
  transform: translateY(-180%);
}

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

.workbench {
  min-height: 100vh;
}

.workbench-rail {
  position: sticky;
  z-index: 20;
  top: 0;
  width: 100%;
  min-width: 0;
  min-height: 4.5rem;
  padding: 0 var(--space-md);
  display: flex;
  align-items: center;
  gap: var(--space-md);
  color: var(--ink);
  background: var(--canvas-deep);
  border-bottom: 1px solid var(--rule);
  overflow: hidden;
}

.wordmark {
  min-height: 2.75rem;
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
  color: var(--ink);
  font-size: 1.25rem;
  font-weight: 860;
  letter-spacing: -0.03em;
  text-decoration: none;
}

.wordmark-mark {
  color: var(--primary);
}

.site-nav {
  min-width: 0;
  display: flex;
  align-self: stretch;
  gap: var(--space-xs);
  overflow-x: auto;
  scrollbar-width: none;
}

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

.rail-link {
  position: relative;
  min-width: max-content;
  min-height: 2.75rem;
  padding: 0 var(--space-sm);
  display: flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--ink-faint);
  font-size: 0.8rem;
  text-decoration: none;
}

.rail-link span {
  color: currentColor;
  font: 700 0.7rem/1 var(--font-data);
}

.rail-link strong {
  font-weight: 650;
}

.rail-link[data-active="true"],
.rail-link:hover {
  color: var(--primary);
}

.rail-link[data-active="true"]::after {
  position: absolute;
  right: var(--space-sm);
  bottom: 0;
  left: var(--space-sm);
  height: 2px;
  background: var(--primary);
  content: "";
}

.rail-foot {
  display: none;
}

.protocol-workspace {
  max-width: 100%;
  min-width: 0;
  outline: none;
}

.hero {
  position: relative;
  min-height: clamp(43rem, 95svh, 58rem);
  display: grid;
  align-items: start;
  overflow: hidden;
  isolation: isolate;
  background: var(--canvas-deep);
  border-bottom: 1px solid var(--rule);
}

.hero::before {
  position: absolute;
  z-index: -1;
  inset: 0;
  background:
    linear-gradient(180deg, var(--canvas-deep) 0%, transparent 28%, transparent 72%, var(--canvas-deep) 100%),
    linear-gradient(90deg, var(--canvas-deep) 0%, var(--canvas-deep) 28%, transparent 75%);
  content: "";
  pointer-events: none;
}

.hero-copy {
  position: relative;
  z-index: 2;
  width: min(100%, 44rem);
  min-width: 0;
  max-width: 100%;
  padding: clamp(3rem, 8vw, 6rem) var(--space-md) var(--space-xl);
}

.breadcrumbs {
  margin: 0 0 var(--space-lg);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-xs);
  color: var(--ink-soft);
  font-size: 0.82rem;
}

.breadcrumbs a,
.breadcrumbs span {
  min-height: 2.75rem;
  display: inline-flex;
  align-items: center;
}

.site-kicker,
.event-code,
.workspace-status,
.command-label,
.route-code,
.footer-status > span,
.hero-facts,
.rail-foot {
  font-family: var(--font-data);
  font-variant-ligatures: none;
}

.site-kicker {
  margin: 0 0 var(--space-md);
  color: var(--primary);
  font-size: 0.76rem;
  font-weight: 760;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.route-brand .site-kicker {
  display: none;
}

.hero h1 {
  max-width: 12ch;
  margin: 0;
  font-size: clamp(2.7rem, 10vw, 4.75rem);
  font-weight: 860;
  line-height: 0.96;
  letter-spacing: -0.038em;
  text-wrap: balance;
  overflow-wrap: anywhere;
}

.lede {
  max-width: 58ch;
  margin: var(--space-lg) 0 0;
  color: var(--ink-soft);
  font-size: 1.05rem;
  font-weight: 430;
  letter-spacing: 0.01em;
}

.action-row {
  margin-top: var(--space-xl);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.button {
  min-height: 3.25rem;
  padding: 0.85rem 1.25rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid currentColor;
  border-radius: 0.25rem;
  font-weight: 780;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  transition:
    color 180ms var(--ease-out),
    background-color 180ms var(--ease-out),
    border-color 180ms var(--ease-out),
    transform 180ms var(--ease-out);
}

.button-primary {
  color: var(--button-ink);
  background: var(--primary);
  border-color: var(--primary);
}

.button-primary:hover {
  background: var(--primary-strong);
  border-color: var(--primary-strong);
  transform: translateY(-2px);
}

.button-secondary {
  color: var(--ink);
  background: var(--canvas-deep);
  border-color: var(--rule-strong);
}

.button-secondary:hover {
  color: var(--primary);
  border-color: var(--primary);
  transform: translateY(-2px);
}

.microcopy {
  max-width: 48ch;
  margin: var(--space-md) 0 0;
  color: var(--ink-faint);
  font-size: 0.86rem;
}

.hero-facts {
  margin-top: var(--space-xl);
  padding-top: var(--space-md);
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem var(--space-lg);
  color: var(--ink-soft);
  border-top: 1px solid var(--rule);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
}

.hero-facts span {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.hero-facts span::before {
  width: 0.42rem;
  height: 0.42rem;
  border: 1px solid var(--primary);
  border-radius: 50%;
  content: "";
}

.hero-visual {
  position: relative;
  z-index: 0;
  right: 0;
  bottom: auto;
  width: 100%;
  height: 30rem;
  margin: 0;
  overflow: hidden;
  opacity: 0.84;
}

.hero-visual--diagram {
  right: 0;
  bottom: 0;
  width: 100%;
  opacity: 0.92;
}

.hero-visual--diagram::after {
  display: none;
}

.hero-visual--diagram img {
  object-fit: contain;
  object-position: center bottom;
}

.hero-visual::after {
  position: absolute;
  top: 4%;
  bottom: 3%;
  left: 50%;
  width: 2px;
  background: var(--primary);
  filter: blur(0.8px);
  opacity: 0.55;
  content: "";
  animation: signal-pulse 2.8s ease-in-out infinite alternate;
}

.hero-visual img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: 50% 50%;
  animation: hero-reveal 800ms var(--ease-out) both;
}

.content-shell {
  background: var(--canvas);
}

.opening-sequence,
.signal-journey,
.protocol-spine,
.spine-faq,
.command-event,
.command-index,
.protocol-final {
  width: min(var(--container), calc(100% - 2rem));
  margin-inline: auto;
}

.signal-journey {
  position: relative;
  padding: var(--space-3xl) 0;
}

.journey-heading {
  padding-bottom: var(--space-xl);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-sm) var(--space-xl);
  border-bottom: 1px solid var(--rule);
  font-family: var(--font-data);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
}

.journey-heading span {
  color: var(--ink-faint);
}

.journey-heading strong {
  color: var(--primary);
}

.journey-scene {
  position: relative;
  min-height: 36rem;
  padding: clamp(3.5rem, 9vw, 7rem) 0 clamp(3.5rem, 9vw, 7rem) 3.5rem;
  display: grid;
  gap: var(--space-xl);
}

.journey-scene::before {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 1.5rem;
  width: 1px;
  background: var(--primary);
  content: "";
}

.journey-node {
  position: absolute;
  z-index: 2;
  top: 50%;
  left: 1.5rem;
  width: 1.2rem;
  height: 1.2rem;
  border: 2px solid var(--canvas);
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 0 1px var(--primary);
  transform: translate(-50%, -50%);
}

.journey-copy {
  align-self: center;
}

.journey-number {
  display: block;
  margin-bottom: var(--space-lg);
  color: var(--primary);
  font: 780 0.82rem/1 var(--font-data);
}

.journey-copy h2 {
  max-width: 13ch;
  margin: 0;
  font-size: clamp(2.1rem, 5vw, 3.6rem);
  font-weight: 820;
  line-height: 0.98;
  letter-spacing: -0.035em;
  text-wrap: balance;
  overflow-wrap: anywhere;
}

.journey-copy h2::after {
  width: 2.5rem;
  height: 1px;
  margin-top: var(--space-lg);
  display: block;
  background: var(--ink-faint);
  content: "";
}

.journey-copy p {
  max-width: 34ch;
  margin: var(--space-lg) 0 0;
  color: var(--ink-soft);
  font-size: 1.05rem;
}

.journey-visual {
  min-width: 0;
  margin: 0;
  align-self: center;
}

.journey-visual img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: contain;
}

.opening-sequence {
  padding: var(--space-3xl) 0;
}

.workspace-status {
  padding-bottom: var(--space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  color: var(--ink-faint);
  border-bottom: 1px solid var(--rule);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
}

.workspace-status strong {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  color: var(--primary);
  font-family: var(--font-body);
  letter-spacing: 0;
}

.workspace-status strong::before {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--primary);
  content: "";
}

.signal-steps {
  position: relative;
  padding-top: var(--space-xl);
  display: grid;
  gap: 0;
}

.signal-steps::before {
  position: absolute;
  top: var(--space-xl);
  bottom: 0;
  left: 1.48rem;
  width: 1px;
  background: linear-gradient(var(--primary), var(--rule));
  content: "";
}

.protocol-event {
  position: relative;
  min-width: 0;
  padding: var(--space-lg) 0;
  display: grid;
  grid-template-columns: 3.25rem minmax(0, 1fr);
  gap: var(--space-sm);
  border-bottom: 1px solid var(--rule);
}

.event-code {
  position: relative;
  z-index: 1;
  align-self: start;
  padding-top: 0.15rem;
  color: var(--primary);
  font-size: 0.74rem;
  font-weight: 780;
}

.opening-state .event-code::after {
  position: absolute;
  top: 0.25rem;
  right: 0.55rem;
  width: 0.62rem;
  height: 0.62rem;
  border: 2px solid var(--canvas);
  border-radius: 50%;
  background: var(--primary);
  content: "";
}

.node-result {
  max-width: 32ch;
  margin: 0;
  color: var(--ink);
  font-size: 1.05rem;
  font-weight: 720;
  text-wrap: pretty;
}

.protocol-spine {
  border-top: 1px solid var(--rule-strong);
}

.spine-chapter-block {
  position: relative;
  padding: var(--space-3xl) 0;
  border-bottom: 1px solid var(--rule-strong);
}

.spine-chapter {
  margin-bottom: var(--space-2xl);
  display: grid;
  grid-template-columns: 2.75rem minmax(0, 1fr);
  gap: var(--space-sm);
}

.spine-chapter > span {
  padding-top: 0.45rem;
  color: var(--primary);
  font: 800 0.74rem/1.3 var(--font-data);
}

.spine-chapter h2 {
  max-width: none;
  margin: 0;
  font-size: clamp(2rem, 8vw, 4.8rem);
  font-weight: 820;
  line-height: 0.98;
  letter-spacing: -0.035em;
  text-wrap: balance;
  overflow-wrap: normal;
  word-break: normal;
}

.spine-chapter p {
  grid-column: 2;
  max-width: 56ch;
  margin: var(--space-md) 0 0;
  color: var(--ink-soft);
  font-size: 1.05rem;
  letter-spacing: 0.01em;
}

.chapter-events {
  position: relative;
}

.chapter-events::before {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 1.48rem;
  width: 1px;
  background: var(--rule);
  content: "";
}

.chapter-events .event-code::after {
  position: absolute;
  top: 0.3rem;
  right: 0.55rem;
  width: 0.55rem;
  height: 0.55rem;
  border: 2px solid var(--canvas);
  border-radius: 50%;
  background: var(--primary-dark);
  content: "";
}

.event-copy h3 {
  max-width: 34ch;
  margin: 0;
  font-size: 1.25rem;
  line-height: 1.25;
  text-wrap: balance;
}

.event-copy p {
  max-width: 56ch;
  margin: var(--space-xs) 0 0;
  color: var(--ink-soft);
  letter-spacing: 0.01em;
}


.spine-faq {
  padding: var(--space-3xl) 0;
  border-bottom: 1px solid var(--rule-strong);
}

.command-label {
  display: block;
  margin-bottom: var(--space-md);
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 780;
  letter-spacing: 0.04em;
}

.spine-faq h2,
.command-index h2,
.protocol-final h2 {
  max-width: 16ch;
  margin: 0;
  font-size: clamp(2.2rem, 8vw, 4.5rem);
  line-height: 1;
  letter-spacing: -0.032em;
  text-wrap: balance;
}

.faq-list {
  margin-top: var(--space-xl);
  border-top: 1px solid var(--rule-strong);
}

.faq-item {
  border-bottom: 1px solid var(--rule);
}

.faq-item summary {
  min-height: 3.5rem;
  padding: var(--space-md) 2.25rem var(--space-md) 0;
  cursor: pointer;
  color: var(--ink);
  font-weight: 730;
}

.faq-item::details-content {
  transition:
    content-visibility 300ms allow-discrete,
    opacity 300ms var(--ease-out);
  opacity: 0;
}

.faq-item[open]::details-content {
  opacity: 1;
}

.faq-item p {
  max-width: 70ch;
  margin: 0;
  padding: 0 0 var(--space-lg);
  color: var(--ink-soft);
}

.command-event {
  margin-top: var(--space-3xl);
  margin-bottom: var(--space-3xl);
  padding: var(--space-xl);
  color: var(--ink);
  background: var(--surface-raised);
  border-top: 1px solid var(--primary);
}

.command-event strong {
  display: block;
  font-size: 1.3rem;
}

.command-event p {
  max-width: 56ch;
  margin: var(--space-xs) 0 0;
  color: var(--ink-soft);
}

.command-index {
  padding: 0 0 var(--space-3xl);
}

.command-index > p {
  max-width: 56ch;
  color: var(--ink-soft);
}

.command-index nav {
  margin-top: var(--space-xl);
  border-top: 1px solid var(--rule-strong);
}

.route-link {
  min-height: 4.75rem;
  padding: var(--space-md) 0;
  display: grid;
  grid-template-columns: 6rem minmax(0, 1fr);
  align-items: center;
  gap: var(--space-md);
  border-bottom: 1px solid var(--rule);
  text-decoration: none;
}

.route-link > strong {
  font-size: 1.02rem;
  transition: color 180ms var(--ease-out);
}

.route-code,
.route-link > span:last-child {
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 740;
}

.route-link > span:last-child {
  grid-column: 2;
}

.route-link:hover strong {
  color: var(--primary);
}

.protocol-final {
  padding: var(--space-xl) 0 var(--space-3xl);
  display: grid;
  gap: var(--space-lg);
  border-top: 1px solid var(--rule-strong);
}

.protocol-final > .event-code {
  display: none;
}

.protocol-final p {
  max-width: 58ch;
  margin: var(--space-sm) 0 0;
  color: var(--ink-soft);
}

.protocol-final .button {
  justify-self: start;
}

.site-footer {
  color: var(--ink);
  background: var(--canvas-deep);
  border-top: 1px solid var(--rule);
}

.footer-status,
.footer-sitemap {
  width: min(var(--container), calc(100% - 2rem));
  margin-inline: auto;
}

.footer-status {
  padding: var(--space-lg) 0;
  display: grid;
  gap: var(--space-sm);
  border-bottom: 1px solid var(--rule);
}

.footer-status > span {
  color: var(--ink-faint);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}

.owner-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.owner-links a,
.footer-group a {
  min-height: 2.75rem;
  display: inline-flex;
  align-items: center;
}

.footer-group {
  border-bottom: 1px solid var(--rule);
}

.footer-group summary {
  min-height: 3.5rem;
  display: flex;
  align-items: center;
  cursor: pointer;
  color: var(--primary);
  font-weight: 740;
}

.footer-group nav {
  padding-bottom: var(--space-md);
  display: grid;
}

.footer-group a {
  color: var(--ink-soft);
  text-decoration: none;
}

.footer-group a:hover,
.owner-links a:hover {
  color: var(--primary);
}

@media (max-width: 41.999rem) {
  .action-row .button {
    width: 100%;
  }

  .spine-chapter h2 {
    overflow-wrap: anywhere;
  }
}

@media (min-width: 42rem) {
  .hero-copy {
    padding-inline: clamp(2rem, 7vw, 5rem);
  }

  .hero-visual {
    right: 0;
    width: 39rem;
    opacity: 0.9;
  }

  .hero-visual--diagram {
    right: 0;
    width: 52%;
  }

  .signal-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .signal-steps::before {
    top: calc(var(--space-xl) + var(--space-lg) + 2.58rem);
    right: calc(25% - 1.31rem);
    bottom: auto;
    left: calc(var(--space-md) + 0.31rem);
    width: auto;
    height: 1px;
    background: linear-gradient(90deg, var(--primary), var(--rule));
  }

  .signal-steps .protocol-event {
    min-height: 10rem;
    padding: var(--space-lg) var(--space-md) var(--space-md);
    display: block;
    border-bottom: 0;
  }

  .signal-steps .event-code {
    display: block;
    margin-bottom: var(--space-xl);
  }

  .opening-state .event-code::after {
    top: 2.27rem;
    right: auto;
    left: 0;
  }

  .route-link {
    grid-template-columns: 7rem minmax(0, 1fr) auto;
  }

  .route-link > span:last-child {
    grid-column: auto;
  }

  .protocol-final {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
  }

  .footer-status {
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: var(--space-xl);
  }

  .footer-status > span {
    text-align: center;
  }

  .footer-group nav {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs) var(--space-xl);
  }
}

@media (min-width: 64rem) {
  .command-event {
    display: grid;
    grid-template-columns: minmax(14rem, 0.7fr) minmax(0, 1.3fr);
    column-gap: clamp(2rem, 6vw, 5rem);
    align-items: start;
  }

  .command-event > .command-label {
    grid-column: 1;
    grid-row: 1;
  }

  .command-event > strong {
    grid-column: 1;
    grid-row: 2;
  }

  .command-event > p {
    grid-column: 2;
    grid-row: 2;
    margin-top: 0;
  }

  .workbench {
    display: grid;
    grid-template-columns: var(--rail-width) minmax(0, 1fr);
    align-items: start;
  }

  .workbench-rail {
    height: 100vh;
    min-height: 38rem;
    padding: var(--space-xl) var(--space-md);
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-2xl);
    border-right: 1px solid var(--rule);
    border-bottom: 0;
  }

  .workbench-rail .wordmark {
    align-self: flex-start;
  }

  .site-nav {
    min-height: 22rem;
    display: flex;
    flex-direction: column;
    align-self: auto;
    gap: 0;
    overflow: visible;
  }

  .rail-link {
    min-width: 0;
    min-height: 5.5rem;
    padding: var(--space-sm) 0 var(--space-sm) 1.75rem;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 0.35rem;
    border-left: 1px solid var(--rule);
  }

  .rail-link::before {
    position: absolute;
    top: 50%;
    left: -0.3rem;
    width: 0.55rem;
    height: 0.55rem;
    border: 1px solid var(--ink-faint);
    border-radius: 50%;
    background: var(--canvas-deep);
    content: "";
    transform: translateY(-50%);
  }

  .rail-link[data-active="true"]::before {
    border-color: var(--primary);
    background: var(--primary);
  }

  .rail-link[data-active="true"]::after {
    display: none;
  }

  .rail-link strong {
    font-size: 0.75rem;
  }

  .rail-foot {
    margin-top: auto;
    display: grid;
    gap: var(--space-sm);
    color: var(--ink-faint);
    font-size: 0.75rem;
  }

  .rail-foot a {
    min-height: 2.75rem;
    display: inline-flex;
    align-items: center;
  }

  .protocol-workspace {
    grid-column: 2;
  }

  .hero {
    min-height: min(58rem, 100svh);
  }

  .hero-copy {
    width: 53%;
    padding: clamp(5rem, 9vh, 8rem) 2rem 5rem clamp(3rem, 7vw, 7rem);
    align-self: center;
  }

  .hero h1 {
    font-size: clamp(3.6rem, 5.1vw, 4.5rem);
  }

  .hero-visual {
    position: absolute;
    top: 0;
    right: 0;
    bottom: auto;
    width: 56%;
    height: 100%;
    opacity: 0.96;
  }

  .hero-visual--diagram {
    width: 48%;
    padding: 4rem 2rem;
  }

  .signal-journey::before {
    position: absolute;
    top: calc(var(--space-3xl) + 4.9rem);
    bottom: var(--space-3xl);
    left: 50%;
    width: 1px;
    background: var(--primary);
    content: "";
  }

  .journey-scene {
    min-height: 42rem;
    padding: clamp(4.5rem, 8vw, 7rem) 0;
    grid-template-columns: minmax(0, 1fr) 5rem minmax(0, 1fr);
    gap: 0;
  }

  .journey-scene::before {
    display: none;
  }

  .journey-copy {
    grid-column: 1;
    padding-right: clamp(2rem, 5vw, 5rem);
  }

  .journey-visual {
    grid-column: 3;
  }

  .journey-scene--reverse .journey-copy {
    grid-column: 3;
    padding-right: 0;
    padding-left: clamp(2rem, 5vw, 5rem);
  }

  .journey-scene--reverse .journey-visual {
    grid-column: 1;
    grid-row: 1;
  }

  .journey-node {
    top: 50%;
    left: 50%;
  }

  .spine-chapter-block {
    display: grid;
    grid-template-columns: minmax(18rem, 0.8fr) minmax(0, 1.25fr);
    gap: clamp(3rem, 8vw, 7rem);
  }

  .spine-chapter h2 {
    font-size: clamp(2rem, 3.2vw, 3.125rem);
  }

  .spine-chapter {
    position: sticky;
    top: var(--space-xl);
    align-self: start;
    margin-bottom: 0;
  }

  .chapter-events .protocol-event {
    grid-template-columns: 3.25rem minmax(0, 1fr);
    gap: var(--space-md);
  }

  .site-footer {
    margin-left: var(--rail-width);
  }
}

@media (min-width: 88rem) {
  .hero-copy {
    padding-left: clamp(5rem, 9vw, 9rem);
  }

  .hero-visual {
    width: 52%;
  }
}

@media (hover: hover) and (pointer: fine) {
  .rail-link,
  .route-link,
  .footer-group a,
  .owner-links a {
    transition: color 180ms var(--ease-out);
  }
}

@keyframes hero-reveal {
  from {
    opacity: 0.72;
    transform: scale(1.025);
    filter: blur(0.35rem);
  }
  to {
    opacity: 1;
    transform: none;
    filter: none;
  }
}

@keyframes signal-pulse {
  from {
    opacity: 0.32;
    transform: scaleY(0.96);
  }
  to {
    opacity: 0.7;
    transform: scaleY(1);
  }
}

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

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

@media print {
  :root {
    color-scheme: light;
  }

  body {
    color: black;
    background: white;
  }

  .workbench {
    display: block;
  }

  .workbench-rail,
  .hero-visual,
  .journey-visual,
  .site-nav,
  .action-row,
  .site-footer,
  .command-index,
  .protocol-final {
    display: none;
  }

  .hero,
  .content-shell {
    min-height: auto;
    color: black;
    background: white;
  }

  .hero-copy {
    width: auto;
    padding: 0;
  }

  .protocol-event,
  .spine-chapter-block {
    break-inside: avoid;
  }
}