@import url("https://fonts.googleapis.com/css2?family=Atkinson+Hyperlegible:wght@400;700&family=Barlow+Condensed:wght@600;700;800&family=DM+Mono:wght@400;500&display=swap");

:root {
  color-scheme: dark;
  --ink: oklch(0.97 0.014 265);
  --ink-soft: oklch(0.82 0.025 265);
  --muted: oklch(0.7 0.03 265);
  --night: oklch(0.145 0.035 287);
  --night-deep: oklch(0.105 0.025 287);
  --surface: oklch(0.2 0.04 286);
  --surface-raised: oklch(0.245 0.045 284);
  --line: oklch(0.42 0.045 280 / 0.58);
  --line-bright: oklch(0.63 0.07 270 / 0.72);
  --cyan: oklch(0.79 0.13 221);
  --violet: oklch(0.69 0.18 292);
  --signal: oklch(0.86 0.22 132);
  --signal-ink: oklch(0.19 0.06 139);
  --hold: oklch(0.7 0.2 27);
  --warning: oklch(0.81 0.18 83);
  --font-display: "Barlow Condensed", "Arial Narrow", sans-serif;
  --font-body: "Atkinson Hyperlegible", system-ui, sans-serif;
  --font-mono: "DM Mono", ui-monospace, monospace;
  --radius-sm: 8px;
  --radius-md: 14px;
  --content: 1180px;
  --reading: 72ch;
  --z-nav: 20;
  --z-toast: 50;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 86% -12%, oklch(0.55 0.2 291 / 0.22), transparent 35rem),
    radial-gradient(circle at -8% 28%, oklch(0.52 0.15 221 / 0.12), transparent 28rem),
    var(--night);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.62;
  text-rendering: optimizeLegibility;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  background: linear-gradient(110deg, transparent 0 62%, oklch(0.3 0.09 286 / 0.09) 62% 66%, transparent 66%);
  content: "";
  pointer-events: none;
}

a {
  color: inherit;
  text-decoration-color: var(--cyan);
  text-underline-offset: 0.2em;
}

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

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

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

::selection {
  background: var(--signal);
  color: var(--signal-ink);
}

.wrap {
  width: min(var(--content), calc(100% - 40px));
  margin-inline: auto;
}

.reading-wrap {
  width: min(860px, calc(100% - 40px));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: var(--z-toast);
  padding: 10px 14px;
  transform: translateY(-150%);
  border-radius: var(--radius-sm);
  background: var(--signal);
  color: var(--signal-ink);
  font-weight: 700;
}

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

.site-nav {
  position: relative;
  z-index: var(--z-nav);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 76px;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  min-height: 44px;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 0.045em;
  text-decoration: none;
  text-transform: uppercase;
}

.brand-signal {
  position: relative;
  width: 25px;
  height: 25px;
  border: 1px solid var(--line-bright);
  border-radius: 50%;
  background: var(--surface);
}

.brand-signal::before,
.brand-signal::after {
  position: absolute;
  top: 50%;
  width: 5px;
  height: 5px;
  transform: translateY(-50%);
  border-radius: 50%;
  background: var(--signal);
  content: "";
}

.brand-signal::before {
  left: 5px;
}

.brand-signal::after {
  right: 5px;
  opacity: 0.28;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-links a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 9px 11px;
  border-radius: var(--radius-sm);
  color: var(--ink-soft);
  font-size: 0.98rem;
  font-weight: 700;
  text-decoration: none;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  background: var(--surface);
  color: var(--ink);
}

.nav-links .nav-cta {
  margin-left: 8px;
  background: var(--signal);
  color: var(--signal-ink);
}

.nav-links .nav-cta:hover {
  background: oklch(0.91 0.2 132);
  color: var(--signal-ink);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.16fr) minmax(320px, 0.84fr);
  gap: clamp(44px, 7vw, 104px);
  align-items: center;
  min-height: min(780px, calc(100vh - 76px));
  padding-block: clamp(76px, 11vw, 150px);
}

.hero > div:first-child {
  animation: arrive 520ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

.hero .signal-tower {
  animation: arrive 620ms 90ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

.signal-label {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 22px;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 0.84rem;
}

.signal-label::before {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--signal);
  content: "";
  box-shadow: 0 0 0 5px oklch(0.86 0.22 132 / 0.12);
}

h1,
h2,
h3 {
  margin-top: 0;
  font-family: var(--font-display);
  font-weight: 700;
  text-wrap: balance;
}

h1 {
  max-width: 13.5ch;
  margin-bottom: 24px;
  font-size: clamp(4.1rem, 9vw, 6rem);
  line-height: 0.88;
  letter-spacing: -0.035em;
  text-transform: uppercase;
}

h1 .signal-word {
  color: var(--signal);
}

.product-hero h1 {
  max-width: 9ch;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(2.65rem, 5.5vw, 4.5rem);
  line-height: 0.94;
  letter-spacing: -0.025em;
  text-transform: uppercase;
}

h3 {
  margin-bottom: 10px;
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  line-height: 1;
  letter-spacing: -0.015em;
}

p {
  text-wrap: pretty;
}

.hero-copy {
  max-width: 62ch;
  margin: 0 0 28px;
  color: var(--ink-soft);
  font-size: clamp(1.12rem, 1.8vw, 1.32rem);
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 11px 18px;
  border: 1px solid var(--line-bright);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--ink);
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  transition: transform 180ms cubic-bezier(0.22, 1, 0.36, 1), background 180ms ease, border-color 180ms ease;
}

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

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

.button.primary:hover {
  border-color: oklch(0.91 0.2 132);
  background: oklch(0.91 0.2 132);
}

.button.small {
  min-height: 44px;
  padding: 8px 12px;
  font-size: 0.9rem;
}

.hero-note {
  margin-top: 20px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.signal-tower {
  position: relative;
  width: min(100%, 430px);
  margin-inline: auto;
  padding: 26px;
  border: 1px solid var(--line-bright);
  border-radius: var(--radius-md);
  background: var(--night-deep);
}

.signal-tower::after {
  position: absolute;
  right: 42px;
  bottom: -72px;
  width: 2px;
  height: 72px;
  background: var(--line-bright);
  content: "";
}

.tower-head,
.tower-foot {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.74rem;
}

.tower-head {
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.tower-foot {
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.lamp-stack {
  display: grid;
  gap: 18px;
  padding-block: 28px;
}

.lamp-row {
  display: grid;
  grid-template-columns: 76px 1fr auto;
  gap: 18px;
  align-items: center;
}

.lamp {
  width: 76px;
  aspect-ratio: 1;
  border: 1px solid var(--line-bright);
  border-radius: 50%;
  background: oklch(0.18 0.02 280);
}

.lamp.go {
  border-color: var(--signal);
  background: var(--signal);
  box-shadow: 0 0 28px oklch(0.86 0.22 132 / 0.3);
  animation: signal-pulse 2.8s ease-in-out infinite;
}

.lamp.hold {
  border-color: oklch(0.5 0.12 27);
  background: oklch(0.38 0.11 27);
}

.lamp.open {
  border-color: var(--cyan);
  background: oklch(0.55 0.12 221);
}

.lamp.shared {
  border-color: var(--violet);
  background: oklch(0.48 0.14 292);
}

.lamp-copy strong,
.lamp-copy span {
  display: block;
}

.lamp-copy strong {
  font-family: var(--font-display);
  font-size: 1.6rem;
  line-height: 1;
  text-transform: uppercase;
}

.lamp-copy span,
.term {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.74rem;
}

.proof-strip {
  border-block: 1px solid var(--line);
  background: oklch(0.13 0.025 287 / 0.7);
}

.proof-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px 28px;
  padding-block: 19px;
  color: var(--ink-soft);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.proof-list span::before {
  margin-right: 8px;
  color: var(--signal);
  content: "●";
}

.section {
  padding-block: clamp(82px, 11vw, 146px);
}

.section-intro {
  max-width: 760px;
  margin-bottom: clamp(38px, 6vw, 72px);
}

.section-intro p,
.lede {
  max-width: var(--reading);
  color: var(--ink-soft);
  font-size: 1.16rem;
}

.race-board {
  overflow: hidden;
  border: 1px solid var(--line-bright);
  border-radius: var(--radius-md);
  background: var(--night-deep);
}

.race-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 17px 20px;
  border-bottom: 1px solid var(--line);
}

.race-room {
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.candidate-list {
  display: grid;
}

.candidate {
  display: grid;
  grid-template-columns: 16px minmax(120px, 0.65fr) minmax(160px, 1.35fr) auto;
  gap: 18px;
  align-items: center;
  min-height: 84px;
  padding: 17px 20px;
  border-bottom: 1px solid var(--line);
}

.candidate:last-child {
  border-bottom: 0;
}

.candidate-light {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--muted);
}

.candidate[data-state="leader"] {
  background: oklch(0.31 0.08 135 / 0.38);
}

.candidate[data-state="leader"] .candidate-light {
  background: var(--signal);
  box-shadow: 0 0 0 6px oklch(0.86 0.22 132 / 0.12);
  animation: signal-pulse 2.8s ease-in-out infinite;
}

.candidate[data-state="follower"] .candidate-light {
  background: var(--hold);
}

.candidate-name {
  font-family: var(--font-display);
  font-size: 1.55rem;
  font-weight: 700;
  line-height: 1;
  text-transform: uppercase;
}

.candidate-route,
.candidate-state {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.76rem;
}

.candidate-state {
  color: var(--ink-soft);
  text-align: right;
}

.race-status {
  min-height: 54px;
  margin: 0;
  padding: 15px 20px;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 0.94rem;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(38px, 7vw, 90px);
  align-items: start;
}

.code-window {
  overflow: hidden;
  border: 1px solid var(--line-bright);
  border-radius: var(--radius-md);
  background: var(--night-deep);
}

.code-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.72rem;
}

pre {
  margin: 0;
  overflow-x: auto;
  color: oklch(0.9 0.04 240);
  font-family: var(--font-mono);
  font-size: 0.83rem;
  line-height: 1.7;
  tab-size: 2;
}

.code-window pre {
  padding: 22px;
}

code {
  font-family: var(--font-mono);
}

p code,
li code {
  padding: 0.08em 0.32em;
  border-radius: 4px;
  background: var(--surface-raised);
  color: var(--cyan);
  font-size: 0.9em;
}

.code-comment {
  color: var(--muted);
}

.copy-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  border: 0;
  background: transparent;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  cursor: pointer;
}

.copy-button:hover {
  color: var(--signal);
}

.mode-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line-bright);
}

.mode {
  display: grid;
  grid-template-columns: minmax(120px, 0.4fr) minmax(0, 1.6fr);
  gap: 26px;
  padding-block: 26px;
  border-bottom: 1px solid var(--line);
}

.mode-name {
  color: var(--signal);
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  line-height: 1;
  text-transform: uppercase;
}

.mode p {
  max-width: 66ch;
  margin: 0;
  color: var(--ink-soft);
}

.orchestration-map {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  gap: 24px;
  align-items: center;
}

.agent-bank,
.task-bank {
  display: grid;
  gap: 10px;
}

.map-node {
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--ink-soft);
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.map-node.active {
  border-color: var(--signal);
  background: oklch(0.28 0.07 135 / 0.5);
  color: var(--ink);
}

.referee {
  display: grid;
  place-items: center;
  width: 180px;
  min-height: 180px;
  padding: 24px;
  border: 1px solid var(--signal);
  border-radius: 50%;
  background: var(--night-deep);
  color: var(--signal);
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 800;
  line-height: 0.95;
  text-align: center;
  text-transform: uppercase;
}

.fact-line {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 30px;
}

.fact {
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.72rem;
}

.section-link {
  margin-top: 28px;
  color: var(--ink-soft);
  font-weight: 700;
}

.section-link a {
  text-decoration-thickness: 2px;
}

.edge-section {
  border-top: 1px solid var(--line);
}

.edge-list {
  border-top: 1px solid var(--line-bright);
}

.edge-row {
  display: grid;
  grid-template-columns: minmax(220px, 0.72fr) minmax(0, 1.28fr);
  gap: clamp(24px, 5vw, 72px);
  padding-block: 25px;
  border-bottom: 1px solid var(--line);
}

.edge-row strong {
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 1.45rem;
  line-height: 1.05;
  text-transform: uppercase;
}

.edge-row span {
  max-width: 62ch;
  color: var(--ink-soft);
}

.use-section {
  border-block: 1px solid var(--line);
  background: var(--night-deep);
}

.use-tape {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.use-tape span {
  padding: 10px 13px;
  border: 1px solid var(--line-bright);
  border-radius: var(--radius-sm);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

.use-note {
  max-width: 68ch;
  margin: 28px 0 0;
  color: var(--ink-soft);
  font-size: 1.08rem;
}

.path-list {
  border-top: 1px solid var(--line-bright);
}

.path-link {
  display: grid;
  grid-template-columns: minmax(130px, 0.34fr) minmax(0, 1.66fr) auto;
  gap: clamp(20px, 4vw, 54px);
  align-items: center;
  min-height: 126px;
  padding-block: 24px;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
}

.path-link:hover strong,
.path-link:hover > span:last-child {
  color: var(--signal);
}

.path-link > span:last-child {
  color: var(--cyan);
  font-family: var(--font-display);
  font-size: 2rem;
  transition: color 160ms ease, transform 180ms cubic-bezier(0.22, 1, 0.36, 1);
}

.path-link:hover > span:last-child {
  transform: translateX(5px);
}

.path-name {
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.path-link strong,
.path-link small {
  display: block;
}

.path-link strong {
  margin-bottom: 7px;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.25rem);
  line-height: 1;
  text-transform: uppercase;
  transition: color 160ms ease;
}

.path-link small {
  max-width: 66ch;
  color: var(--ink-soft);
  font-size: 0.98rem;
}

.self-host-split {
  align-items: center;
}

.closing {
  padding-block: clamp(90px, 14vw, 170px);
  border-top: 1px solid var(--line);
  text-align: center;
}

.closing h2 {
  max-width: 14ch;
  margin-inline: auto;
}

.closing p {
  max-width: 58ch;
  margin: 0 auto 28px;
  color: var(--ink-soft);
  font-size: 1.16rem;
}

.closing .button-row {
  justify-content: center;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 24px;
  padding-block: 32px 48px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.92rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

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

.site-footer a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
}

.page-header {
  padding-block: clamp(74px, 10vw, 126px) clamp(48px, 7vw, 82px);
}

.page-header h1 {
  max-width: 13ch;
}

.page-header .lede {
  margin-bottom: 0;
}

.guide-hero .lede {
  margin-bottom: 28px;
}

.guide-hero h1 {
  max-width: 15ch;
}

.content-section {
  padding-block: 52px;
  border-top: 1px solid var(--line);
}

.content-section h2 {
  font-size: clamp(2.35rem, 4.5vw, 3.6rem);
}

.content-section p,
.content-section li {
  max-width: var(--reading);
  color: var(--ink-soft);
}

.content-section li + li {
  margin-top: 8px;
}

.response-pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(24px, 5vw, 52px);
}

.response-pair > div {
  min-width: 0;
}

.response-pair pre {
  padding: 20px 0;
  border-block: 1px solid var(--line);
}

.response-pair p {
  font-size: 0.98rem;
}

.term-story {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr) auto minmax(0, 1fr);
  gap: 14px;
  align-items: center;
  margin-block: 30px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
}

.term-story > span {
  color: var(--muted);
}

.term-story > span[aria-hidden="true"] {
  color: var(--signal);
  font-size: 1.4rem;
}

.term-story strong {
  display: block;
  margin-bottom: 8px;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 1.5rem;
  line-height: 1;
  text-transform: uppercase;
}

.plain-list {
  border-top: 1px solid var(--line-bright);
}

.plain-list p {
  display: grid;
  grid-template-columns: minmax(170px, 0.4fr) minmax(0, 1.6fr);
  gap: 24px;
  max-width: none;
  margin: 0;
  padding-block: 22px;
  border-bottom: 1px solid var(--line);
}

.plain-list strong {
  color: var(--ink);
}

.operating-loop {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-block: 30px;
  border-block: 1px solid var(--line-bright);
}

.operating-loop div {
  min-width: 0;
  padding: 22px 18px;
  border-right: 1px solid var(--line);
}

.operating-loop div:last-child {
  border-right: 0;
}

.operating-loop strong,
.operating-loop span {
  display: block;
}

.operating-loop strong {
  margin-bottom: 8px;
  color: var(--signal);
  font-family: var(--font-display);
  font-size: 1.45rem;
  line-height: 1;
  text-transform: uppercase;
}

.operating-loop span {
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.collision-line {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-block: 30px;
  border-block: 1px solid var(--line-bright);
}

.collision-line span {
  padding: 22px 18px;
  border-right: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.76rem;
}

.collision-line span:last-child {
  border-right: 0;
}

.collision-line strong {
  display: block;
  margin-bottom: 7px;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 1.5rem;
  line-height: 1;
  text-transform: uppercase;
}

.collision-line .collision-result strong {
  color: var(--hold);
}

@keyframes arrive {
  from {
    transform: translateY(16px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes signal-pulse {
  0%, 100% { box-shadow: 0 0 0 0 oklch(0.86 0.22 132 / 0.08); }
  50% { box-shadow: 0 0 0 9px oklch(0.86 0.22 132 / 0.14); }
}

.callout {
  margin-block: 28px;
  padding: 24px;
  border: 1px solid var(--line-bright);
  border-radius: var(--radius-md);
  background: var(--surface);
}

.callout > :last-child {
  margin-bottom: 0;
}

.status-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.94rem;
}

.table-scroll {
  max-width: 100%;
  overflow-x: auto;
}

.table-scroll .status-table {
  min-width: 620px;
}

.status-table th,
.status-table td {
  padding: 14px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.status-table th {
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
}

.status-table td {
  color: var(--ink-soft);
}

.docs-layout {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: clamp(34px, 6vw, 80px);
  align-items: start;
  padding-bottom: 100px;
}

.docs-nav {
  position: sticky;
  top: 28px;
  display: grid;
  gap: 5px;
}

.docs-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  color: var(--muted);
  font-size: 0.93rem;
  text-decoration: none;
}

.docs-nav a:hover {
  background: var(--surface);
  color: var(--ink);
}

.docs-content > section {
  padding-block: 30px 54px;
  border-bottom: 1px solid var(--line);
}

.docs-content > section:first-child {
  padding-top: 0;
}

.docs-content h2 {
  font-size: clamp(2.2rem, 4vw, 3.25rem);
}

.docs-content p,
.docs-content li {
  max-width: var(--reading);
  color: var(--ink-soft);
}

.api-frame {
  min-height: 760px;
  border-top: 1px solid var(--line);
  background: var(--night-deep);
}

.post-list {
  border-top: 1px solid var(--line-bright);
}

.post-link {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr) auto;
  gap: 28px;
  align-items: center;
  padding-block: 28px;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
}

.post-link:hover h2 {
  color: var(--signal);
}

.post-link time,
.post-link .post-arrow {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.post-link h2 {
  margin-bottom: 8px;
  font-size: clamp(1.9rem, 3vw, 2.7rem);
  transition: color 160ms ease;
}

.post-link p {
  max-width: 64ch;
  margin: 0;
  color: var(--ink-soft);
}

.article {
  padding-block: clamp(72px, 10vw, 124px);
}

.article-header {
  padding-bottom: 44px;
  border-bottom: 1px solid var(--line);
}

.article-header h1 {
  max-width: 14ch;
}

.article-meta {
  margin-bottom: 18px;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.article-body {
  padding-top: 38px;
}

.article-body > * {
  max-width: var(--reading);
  margin-inline: auto;
}

.article-body h2 {
  margin-top: 54px;
  font-size: clamp(2.15rem, 4vw, 3.2rem);
}

.article-body p,
.article-body li {
  color: var(--ink-soft);
  font-size: 1.08rem;
}

.article-body .code-window,
.article-body .callout {
  max-width: 820px;
  margin-block: 32px;
}

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

@media (max-width: 900px) {
  .hero,
  .split {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: 0;
  }

  .signal-tower {
    width: min(100%, 560px);
  }

  .signal-tower::after {
    display: none;
  }

  .orchestration-map {
    grid-template-columns: 1fr;
  }

  .referee {
    width: 150px;
    min-height: 150px;
    margin-inline: auto;
  }

  .docs-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .docs-nav {
    position: static;
    display: flex;
    flex-wrap: wrap;
    min-width: 0;
  }

  .docs-content {
    min-width: 0;
  }

  .response-pair {
    grid-template-columns: 1fr;
  }

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

  .operating-loop div:nth-child(2) {
    border-right: 0;
  }

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

@media (max-width: 700px) {
  .site-nav {
    align-items: flex-start;
    min-height: 0;
    padding-block: 18px;
  }

  .nav-links {
    justify-content: flex-end;
  }

  .nav-links a:not(.nav-cta) {
    display: none;
  }

  .hero {
    padding-top: 62px;
  }

  h1 {
    font-size: clamp(3.65rem, 19vw, 5.25rem);
  }

  .page-header h1 {
    font-size: clamp(3.3rem, 17vw, 4.8rem);
  }

  .candidate {
    grid-template-columns: 14px 1fr auto;
    gap: 12px;
  }

  .candidate-route {
    display: none;
  }

  .mode,
  .post-link,
  .edge-row,
  .path-link,
  .plain-list p {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .path-link {
    min-height: 0;
    padding-block: 26px;
  }

  .path-link > span:last-child {
    display: none;
  }

  .term-story {
    grid-template-columns: 1fr;
  }

  .term-story > span[aria-hidden="true"] {
    transform: rotate(90deg);
    text-align: center;
  }

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

  .collision-line span {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .collision-line span:last-child {
    border-bottom: 0;
  }

  .post-link .post-arrow {
    display: none;
  }

  .proof-list {
    justify-content: flex-start;
  }
}

@media (max-width: 440px) {
  .wrap,
  .reading-wrap {
    width: min(100% - 28px, var(--content));
  }

  .race-toolbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .lamp-row {
    grid-template-columns: 58px 1fr;
  }

  .lamp {
    width: 58px;
  }

  .term {
    display: none;
  }

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

  .operating-loop div,
  .operating-loop div:nth-child(2) {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .operating-loop div:last-child {
    border-bottom: 0;
  }
}

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

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