:root {
  --bg: #fff;
  --fg: #666;
  --muted: #666;
  --accent: #ee4440;
  --line: #666;
  --soft: #f5f5f5
}

* {
  box-sizing: border-box
}

html,
body {
  margin: 0;
  max-width: 100%;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.6 ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif
}

a {
  color: inherit
}

code,
pre {
  font: 13px/1.55 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace
}

.app-shell {
  display: grid;
  grid-template-columns: minmax(260px, 320px) minmax(0, 1fr);
  min-height: 100vh
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: auto;
  padding: 24px 18px;
  border-right: 1px solid var(--line);
  background: linear-gradient(180deg, #fff 0%, #fafafa 100%)
}

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

.brand-kicker {
  font-size: 12px;
  text-transform: uppercase;
  color: var(--muted)
}

.brand-title {
  font-size: 24px;
  font-weight: 800;
  line-height: 1.05;
  color: #666
}

.nav-toggle {
  display: none;
  width: 100%;
  margin: 0 0 14px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
  color: var(--fg);
  font-weight: 700
}

.search {
  display: block;
  margin: 0 0 18px
}

.search span {
  display: block;
  font-size: 12px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px
}

.search input {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--fg);
  border-radius: 8px
}

.search-status {
  min-height: 18px;
  margin: 0 0 12px;
  font-size: 12px;
  color: var(--muted)
}

.nav-group {
  margin: 0 0 18px
}

.nav-group h2 {
  margin: 0 0 10px;
  font-size: 11px;
  text-transform: uppercase;
  color: var(--muted)
}

.nav-link {
  display: block;
  padding: 10px 12px;
  border: 1px solid transparent;
  border-radius: 8px;
  text-decoration: none;
  margin: 0 0 8px;
  background: #fff
}

.nav-link:hover,
.nav-link.active {
  border-color: var(--line);
  box-shadow: 3px 3px 0 0 var(--line)
}

.nav-link span {
  display: block;
  font-weight: 700
}

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

.main {
  padding: 28px;
  min-width: 0
}

.doc {
  max-width: 880px;
  margin: 0 auto
}

.hero {
  padding: 28px 28px 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(135deg, #fff 0%, #fbfbfb 100%);
  box-shadow: 8px 8px 0 0 var(--line);
  margin-bottom: 24px
}

.eyebrow {
  font-size: 12px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 12px
}

.hero h1 {
  margin: 0 0 12px;
  font-size: 56px;
  line-height: 1;
  color: #666;
  overflow-wrap: anywhere
}

.hero p {
  margin: 0 0 16px;
  max-width: 60ch;
  font-size: 18px;
  color: #666
}

.stats {
  display: flex;
  gap: 14px;
  flex-wrap: wrap
}

.stats div {
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff
}

.stats strong {
  display: block;
  font-size: 24px;
  line-height: 1;
  color: #666
}

.stats span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase
}

.panel {
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  margin-bottom: 22px
}

.panel h2,
.doc h2 {
  margin: 0 0 12px;
  font-size: 22px;
  line-height: 1.15
}

.doc h3 {
  margin: 20px 0 10px;
  font-size: 18px
}

.doc p,
.doc ul,
.doc blockquote,
.doc .code-block {
  margin: 0 0 16px
}

.doc p {
  max-width: 70ch
}

.doc ul {
  padding-left: 20px
}

.doc li {
  margin: 0 0 6px
}

.doc blockquote {
  padding: 16px 18px;
  border-left: 3px solid var(--accent);
  background: #fff;
  border-radius: 0 16px 16px 0
}

.code-block {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: #fff;
  box-shadow: 6px 6px 0 0 var(--line)
}

.code-block pre {
  margin: 0;
  padding: 20px;
  overflow: auto;
  background: #fff;
  max-width: 100%
}

.copy-button {
  position: absolute;
  top: 10px;
  right: 10px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--fg);
  border-radius: 8px;
  padding: 8px 12px;
  cursor: pointer
}

.copy-button:hover,
.copy-button:focus {
  background: var(--accent);
  color: #fff
}

.tok {
  display: inline
}

.tok.kw {
  color: var(--accent);
  font-weight: 700
}

.tok.fn {
  color: #666;
  font-weight: 700
}

.tok.str {
  color: #666
}

.tok.cm {
  color: #666;
  font-style: italic
}

.tok.num {
  color: #666
}

.doc a {
  color: inherit;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px
}

.doc a:hover {
  color: var(--accent)
}

.meta {
  color: var(--muted);
  font-size: 14px
}

.signature {
  background: #fff
}

.section-anchor {
  scroll-margin-top: 24px
}

.diagram-block pre {
  background: linear-gradient(180deg, #fff 0%, #fafafa 100%)
}

.diagram-block code {
  font-size: 14px;
  line-height: 1.6;
  color: #666
}

.landing {
  max-width: 1180px;
  margin: 0 auto;
  padding: 24px 24px 64px
}

.landing-nav {
  display: flex;
  justify-content: flex-end;
  gap: 18px;
  margin: 0 0 28px
}

.landing-nav a {
  color: var(--fg);
  text-decoration: none;
  font-weight: 700
}

.landing-nav a:hover {
  color: var(--accent)
}

.showcase {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(300px, .95fr);
  gap: 28px;
  align-items: stretch;
  min-height: 560px
}

.showcase-copy {
  display: flex;
  flex-direction: column;
  justify-content: center
}

.showcase-copy h1 {
  margin: 0 0 18px;
  font-size: 64px;
  line-height: 1;
  color: #666;
  max-width: 11ch;
  overflow-wrap: anywhere
}

.showcase-copy p {
  margin: 0 0 24px;
  max-width: 58ch;
  font-size: 18px;
  color: #666
}

.showcase-code {
  border: 1px solid var(--line);
  box-shadow: 6px 6px 0 0 var(--line);
  background: #fff;
  overflow: auto;
  max-width: 100%
}

.showcase-code pre {
  margin: 0 -10rem 0 0;
  padding: 20px;
  background: #fff
}

.showcase-code code {
  font-size: 13px;
  color: #666
}

.showcase-demo {
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  box-shadow: 8px 8px 0 0 var(--line);
  background: #fff;
  min-height: 520px
}

.traffic-scene {
  width: min(360px, 88%);
  display: grid;
  gap: 22px;
  justify-items: center
}

.traffic-controller {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border: 1px solid var(--line);
  padding: 12px 14px;
  background: #fff
}

.traffic-controller span {
  font-size: 12px;
  text-transform: uppercase;
  color: #666
}

.traffic-controller strong {
  color: var(--accent);
  font-size: 22px;
  line-height: 1
}

.state-word {
  font-size: 0
}

.state-word::after {
  content: "";
  animation: stateWord 3.6s steps(1, end) infinite
}

.state-word::after {
  font-size: 22px
}

.traffic-light {
  width: 156px;
  padding: 18px;
  border: 1px solid var(--line);
  display: grid;
  gap: 14px;
  background: #fff;
  box-shadow: 6px 6px 0 0 var(--line)
}

.lamp {
  width: 100%;
  aspect-ratio: 1;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  position: relative
}

.lamp::after {
  content: "";
  position: absolute;
  inset: 18%;
  border-radius: inherit;
  background: #666;
  opacity: .22
}

.lamp-red::after {
  animation: lampRed 3.6s steps(1, end) infinite
}

.lamp-amber::after {
  animation: lampAmber 3.6s steps(1, end) infinite
}

.lamp-green::after {
  animation: lampGreen 3.6s steps(1, end) infinite
}

.traffic-timeline {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px
}

.traffic-timeline span {
  border: 1px solid var(--line);
  padding: 8px 10px;
  text-align: center;
  font-size: 12px;
  text-transform: uppercase;
  color: #666;
  background: #fff
}

.traffic-timeline span:nth-child(1) {
  animation: timelineRed 3.6s steps(1, end) infinite
}

.traffic-timeline span:nth-child(2) {
  animation: timelineAmber 3.6s steps(1, end) infinite
}

.traffic-timeline span:nth-child(3) {
  animation: timelineGreen 3.6s steps(1, end) infinite
}

.landing-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 34px
}

.landing-card {
  display: block;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  text-decoration: none;
  background: #fff;
  box-shadow: 6px 6px 0 0 var(--line)
}

.landing-card span {
  display: block;
  font-size: 14px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px
}

.landing-card small {
  display: block;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.55
}

@keyframes lampRed {

  0%,
  33% {
    background: red;
    opacity: 1
  }

  33.1%,
  100% {
    background: #666;
    opacity: .22
  }
}

@keyframes lampAmber {

  0%,
  33% {
    background: #666;
    opacity: .22
  }

  33.1%,
  66% {
    background: #FFBF00;
    opacity: 1
  }

  66.1%,
  100% {
    background: #666;
    opacity: .22
  }
}

@keyframes lampGreen {

  0%,
  66% {
    background: #666;
    opacity: .22
  }

  66.1%,
  100% {
    background: green;
    opacity: 1
  }
}

@keyframes timelineRed {

  0%,
  33% {
    color: #fff;
    background: red
  }

  33.1%,
  100% {
    color: #666;
    background: #fff
  }
}

@keyframes timelineAmber {

  0%,
  33% {
    color: #666;
    background: #fff
  }

  33.1%,
  66% {
    color: #fff;
    background: #FFBF00
  }

  66.1%,
  100% {
    color: #666;
    background: #fff
  }
}

@keyframes timelineGreen {

  0%,
  66% {
    color: #666;
    background: #fff
  }

  66.1%,
  100% {
    color: #fff;
    background: green
  }
}

@keyframes stateWord {

  0%,
  33% {
    content: "red"
  }

  33.1%,
  66% {
    content: "amber"
  }

  66.1%,
  100% {
    content: "green"
  }
}

.content-layout {
  display: block
}

.content-shell {
  width: 100%;
  max-width: 980px;
  margin: 0 auto;
  padding: 16px 0 0;
  border-right: 0;
  background: transparent;
  position: static;
  height: auto;
  overflow: visible
}

.content-layout .sidebar {
  display: none
}

.content-layout .main {
  padding: 24px 0
}

.content-nav {
  display: flex;
  gap: 12px;
  flex-wrap: wrap
}

.content-nav a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 700
}

.api-docs-top-nav-container {
  margin: 1.5rem 0rem -3rem;
}

.content-top-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin: 0 1rem 3rem;
}

.content-top-nav-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none
}

.content-top-nav-brand img {
  height: 2rem;
}

.content-top-nav a {
  color: var(--fg);
  text-decoration: none;
  font-weight: 700;
}

.content-top-nav-links a {
  margin-left: 1rem;
}

.diagram-block {
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 6px 6px 0 0 var(--line);
  padding: 18px;
  background: #fff;
  margin: 0 0 16px;
  overflow: hidden
}

.diagram-svg {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  min-height: 84px
}

.diagram-node {
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
  color: #666;
  box-shadow: 4px 4px 0 0 var(--line)
}

.diagram-node span {
  display: block;
  font-weight: 700
}

.diagram-arrow {
  color: var(--accent);
  font-size: 24px;
  font-weight: 700
}

.doc h1,
.doc h2,
.doc h3,
.doc h4 {
  color: #666
}

.doc h2 {
  position: relative;
  padding-top: 4px
}

.doc h2::after {
  content: "";
  display: block;
  width: 56px;
  height: 3px;
  background: var(--accent);
  margin-top: 10px
}

.doc .callout {
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: 6px 6px 0 0 var(--line)
}

@media (max-width: 980px) {
  .app-shell {
    grid-template-columns: 1fr
  }

  .sidebar {
    position: relative;
    height: auto;
    border-right: 0;
    border-bottom: 1px solid var(--line);
    padding: 16px
  }

  .nav-toggle {
    display: block
  }

  .sidebar[data-collapsed="true"] #nav,
  .sidebar[data-collapsed="true"] .search,
  .sidebar[data-collapsed="true"] .search-status {
    display: none
  }

  .main {
    padding: 16px
  }

  .doc {
    max-width: none
  }

  .hero {
    box-shadow: 5px 5px 0 0 var(--line);
    padding: 20px 18px 16px
  }

  .hero h1 {
    font-size: 40px;
    line-height: 1.02
  }

  .panel {
    padding: 16px 18px
  }

  .showcase {
    grid-template-columns: 1fr;
    min-height: 0
  }

  .showcase-copy h1 {
    font-size: 42px;
    line-height: 1.04;
    max-width: none
  }

  .showcase-demo {
    min-height: 320px
  }

  .landing-nav {
    justify-content: flex-start;
    flex-wrap: wrap
  }

  .landing-grid {
    grid-template-columns: 1fr
  }

  .landing {
    padding: 20px 16px 48px
  }
}

@media (max-width: 640px) {

  html,
  body {
    font-size: 15px
  }

  .landing {
    padding: 14px 12px 36px
  }

  .landing-nav {
    gap: 10px;
    margin-bottom: 18px
  }

  .landing-nav a {
    font-size: 14px
  }

  .showcase {
    gap: 18px
  }

  .showcase-copy h1 {
    font-size: 34px
  }

  .showcase-copy p {
    font-size: 16px;
    margin-bottom: 18px
  }

  .showcase-code pre {
    padding: 14px
  }

  .showcase-code code {
    font-size: 12px;
    line-height: 1.5
  }

  .showcase-demo {
    min-height: 270px;
    box-shadow: 5px 5px 0 0 var(--line)
  }

  .traffic-scene {
    width: min(290px, 92%);
    gap: 14px
  }

  .traffic-controller {
    padding: 10px 12px
  }

  .traffic-controller span {
    font-size: 10px
  }

  .state-word::after {
    font-size: 18px
  }

  .traffic-light {
    width: 116px;
    padding: 12px;
    gap: 10px;
    box-shadow: 5px 5px 0 0 var(--line)
  }

  .traffic-timeline {
    gap: 6px
  }

  .traffic-timeline span {
    padding: 7px 4px;
    font-size: 10px
  }

  .landing-grid {
    gap: 12px;
    margin-top: 22px
  }

  .landing-card {
    padding: 16px;
    box-shadow: 4px 4px 0 0 var(--line)
  }

  .main {
    padding: 12px
  }

  .content-layout .main {
    padding: 12px
  }

  .api-docs-top-nav-container {
    margin: 0.8rem 0.8rem 0rem;
  }

  .content-top-nav {
    padding: 0;
    margin: 0 auto 1rem;
  }

  .content-top-nav-links a {
    margin-left: 0.5rem;
  }

  .sidebar {
    padding: 12px
  }

  .brand-title {
    font-size: 20px
  }

  .hero {
    padding: 16px 14px;
    box-shadow: 4px 4px 0 0 var(--line)
  }

  .hero h1 {
    font-size: 32px
  }

  .hero p {
    font-size: 16px
  }

  .doc p,
  .doc ul,
  .doc blockquote,
  .doc .code-block {
    margin-bottom: 14px
  }

  .doc ul {
    padding-left: 18px
  }

  .code-block {
    box-shadow: 4px 4px 0 0 var(--line)
  }

  .code-block pre {
    padding: 14px
  }

  .copy-button {
    position: static;
    margin: 10px 0 0 10px;
    padding: 6px 10px
  }

  .diagram-block {
    padding: 12px;
    box-shadow: 4px 4px 0 0 var(--line)
  }

  .diagram-svg {
    display: grid;
    grid-template-columns: 1fr;
    min-height: 0
  }

  .diagram-arrow {
    font-size: 18px;
    transform: rotate(90deg);
    justify-self: center
  }

  .diagram-node {
    width: 100%;
    box-shadow: 3px 3px 0 0 var(--line)
  }
}