@font-face {
  font-family: Geist;
  src: url('fonts/geist-variable.woff2') format('woff2');
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
}
:root {
  color-scheme: light;
  --background: #fff;
  --foreground: #171717;
  --muted: #666;
  --border: #eaeaea;
  --subtle: #fafafa;
  --focus: #0070f3;
  --sans: Geist, 'Helvetica Neue', Arial, sans-serif;
  --mono: 'SFMono-Regular', Consolas, 'Liberation Mono', monospace;
  font-family: var(--sans);
  color: var(--foreground);
  background: var(--background);
  font-synthesis: none;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 28px;
}
body {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
::selection {
  color: #fff;
  background: #171717;
}
:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 4px;
}
[hidden] {
  display: none !important;
}
button,
input {
  font: inherit;
}
button,
a {
  -webkit-tap-highlight-color: transparent;
}
button {
  cursor: pointer;
}
button:disabled,
input:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}
a {
  color: inherit;
  text-decoration: none;
  text-underline-offset: 4px;
}
button {
  color: inherit;
}
p,
h1,
h2,
h3,
figure {
  margin: 0;
}
h1,
h2,
h3 {
  font-weight: 550;
}
h2 {
  font-size: 28px;
  line-height: 1.2;
  letter-spacing: -0.035em;
}
h3 {
  font-size: 14px;
  line-height: 1.5;
}
p {
  color: var(--muted);
}
code,
pre {
  font-family: var(--mono);
  font-size: 12px;
}
pre {
  margin: 0;
  overflow: auto;
  tab-size: 2;
  scrollbar-width: thin;
  scrollbar-color: #b3b3b3 transparent;
}
pre code {
  font-size: inherit;
}
p code {
  color: var(--foreground);
  font-size: 0.9em;
}
.icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.page-width {
  width: min(1120px, calc(100% - 64px));
  margin-inline: auto;
  border-inline: 1px solid var(--border);
}
.site-header {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding-inline: 32px;
  border-bottom: 1px solid var(--border);
}
.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 19px;
  font-weight: 600;
  letter-spacing: -0.045em;
}
.wordmark svg {
  width: 29px;
  height: 29px;
  fill: #fff;
  stroke: var(--foreground);
  stroke-width: 1.7;
}
.site-header nav {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-left: auto;
}
.site-header nav a,
.header-source {
  color: var(--muted);
  font-size: 13px;
}
.site-header a:hover {
  color: #000;
}
.header-source {
  display: inline-flex;
  align-items: center;
  gap: 3px;
}
.skip-link {
  position: fixed;
  z-index: 20;
  top: 8px;
  left: 8px;
  padding: 10px 16px;
  background: #171717;
  color: #fff;
  transform: translateY(-150%);
  border-radius: 4px;
}
.skip-link:focus {
  transform: translateY(0);
}
.hero {
  position: relative;
}
.hero-copy {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 68px 24px 16px;
}
h1 {
  font-size: clamp(38px, 4.9vw, 62px);
  line-height: 1.1;
  letter-spacing: -0.04em;
  font-weight: 600;
  text-wrap: balance;
}
.hero-copy p {
  margin-top: 22px;
  font-size: 17px;
  line-height: 1.65;
}
.hero-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 40px;
  padding: 9px 16px;
  border: 1px solid #dedede;
  border-radius: 6px;
  background: #fff;
  font-size: 13px;
  font-weight: 500;
  line-height: 1.4;
  transition:
    background 0.15s,
    border-color 0.15s;
}
.button:hover {
  background: #f5f5f5;
  border-color: #b3b3b3;
}
.button.primary {
  background: #171717;
  color: #fff;
  border-color: #171717;
}
.button.primary:hover {
  background: #333;
  border-color: #333;
}
.install-button code {
  font-size: 12px;
}
.install-button .icon {
  color: var(--muted);
}
.hero-art {
  overflow: hidden;
}
#ribbon {
  display: block;
  width: 100%;
  height: 300px;
}
.hero-art figcaption {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 12px 32px;
  gap: 20px;
  color: var(--muted);
  border-top: 1px solid var(--border);
  font-size: 11px;
}
.hero-art figcaption > span:last-child {
  justify-self: end;
}
.quiet-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 30px;
  padding: 4px 6px;
  border: 0;
  border-radius: 4px;
  background: transparent;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.4;
}
.quiet-button:hover {
  background: #f0f0f0;
  color: #171717;
}
.section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 40px 32px 32px;
  border-top: 1px solid var(--border);
}
.section-heading p {
  margin-top: 9px;
}
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 13px;
}
.text-link:hover {
  text-decoration: underline;
}
.experiment-tabs {
  display: flex;
  padding-inline: 24px;
  gap: 16px;
  overflow-x: auto;
  scrollbar-width: thin;
  border-bottom: 1px solid var(--border);
}
.experiment-tabs button {
  position: relative;
  flex-shrink: 0;
  padding: 13px 8px;
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: 13px;
}
.experiment-tabs button[aria-pressed='true'] {
  color: var(--foreground);
}
.experiment-tabs button[aria-pressed='true']::after {
  content: '';
  position: absolute;
  height: 2px;
  bottom: 0;
  inset-inline: 8px;
  background: var(--foreground);
}
.experiment-tabs button:hover {
  color: #000;
}
.experiment-tabs button:focus-visible {
  outline-offset: -4px;
}
.studio-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 244px;
}
.studio-visual {
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.canvas-toolbar,
.canvas-caption {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 48px;
  padding: 9px 24px;
  color: var(--muted);
  font-size: 12px;
}
.canvas-toolbar {
  border-bottom: 1px solid var(--border);
}
.canvas-caption {
  margin-top: auto;
  border-top: 1px solid var(--border);
  font-size: 11px;
}
.measurement {
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}
.canvas-stage {
  position: relative;
  width: 100%;
  aspect-ratio: 720 / 400;
  margin-block: auto;
  overflow: hidden;
  touch-action: none;
}
#play-canvas,
#webgl-stage,
#webgl-stage canvas {
  display: block;
  width: 100% !important;
  height: 100% !important;
}
#play-canvas {
  position: absolute;
  inset: 0;
}
#webgl-stage {
  position: absolute;
  inset: 0;
}
#point-handles {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.point-handle {
  position: absolute;
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  padding: 0;
  transform: translate(-50%, -50%);
  border: none;
  border-radius: 50%;
  background: transparent;
  pointer-events: auto;
  touch-action: none;
  cursor: grab;
}
.point-handle::before {
  content: '';
  width: 10px;
  height: 10px;
  border: 1.5px solid #171717;
  border-radius: 50%;
  background: #fff;
  transition: background 0.15s;
}
.point-handle:hover::before,
.point-handle:focus-visible::before {
  background: #171717;
}
.point-handle:active {
  cursor: grabbing;
}
.point-handle span {
  position: absolute;
  top: 27px;
  color: #737373;
  font: 11px var(--mono);
  pointer-events: none;
}
.canvas-stage[data-mode='draw'] {
  cursor: crosshair;
}
.canvas-stage[data-mode='closest'] {
  cursor: crosshair;
}
.canvas-message {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  padding: 32px;
  text-align: center;
  color: #171717;
  background: #fafafa;
}
.studio-controls {
  padding: 24px;
  border-left: 1px solid var(--border);
  background: var(--subtle);
}
.controls-intro {
  margin-bottom: 26px;
}
.controls-intro p {
  font-size: 12px;
  margin-top: 8px;
  line-height: 1.6;
}
.control-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  margin-bottom: 21px;
  font-size: 12px;
}
/* Keep native range interaction with a simple filled track. */
.control-row output {
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}
input[type='range'] {
  --range-fill: 0%;
  --range-track: #eaeaea;
  --range-active: #171717;
  --range-thumb-border: #a3a3a3;
  appearance: none;
  -webkit-appearance: none;
  grid-column: 1 / -1;
  width: 100%;
  height: 32px;
  margin: -3px 0 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  cursor: pointer;
}
input[type='range']::-webkit-slider-runnable-track {
  height: 4px;
  border: 0;
  border-radius: 2px;
  background: linear-gradient(
    to right,
    var(--range-active) 0 var(--range-fill),
    var(--range-track) var(--range-fill) 100%
  );
}
input[type='range']::-moz-range-track {
  height: 4px;
  border: 0;
  border-radius: 2px;
  background: var(--range-track);
}
input[type='range']::-moz-range-progress {
  height: 4px;
  border-radius: 2px;
  background: var(--range-active);
}
input[type='range']::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  box-sizing: border-box;
  width: 16px;
  height: 16px;
  margin-top: -6px;
  border: 1.5px solid var(--range-thumb-border);
  border-radius: 50%;
  background: #fff;
  transition: border-color 0.15s;
}
input[type='range']::-moz-range-thumb {
  box-sizing: border-box;
  width: 16px;
  height: 16px;
  border: 1.5px solid var(--range-thumb-border);
  border-radius: 50%;
  background: #fff;
  transition: border-color 0.15s;
}
input[type='range']:not(:disabled):hover,
input[type='range']:not(:disabled):active {
  --range-thumb-border: #171717;
}
input[type='range']:focus-visible {
  outline: none;
}
input[type='range']:focus-visible::-webkit-slider-thumb {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
}
input[type='range']:focus-visible::-moz-range-thumb {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
}
input[type='range']:disabled {
  --range-active: var(--range-track);
  --range-thumb-border: #bfbfbf;
  cursor: not-allowed;
}
.toggle-row {
  display: flex;
  position: relative;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  min-height: 38px;
  cursor: pointer;
  font-size: 12px;
}
.toggle-row input {
  position: absolute;
  width: 100%;
  height: 100%;
  opacity: 0;
  margin: 0;
  cursor: pointer;
}
.toggle-track {
  display: block;
  width: 28px;
  height: 16px;
  border: 1px solid #bfbfbf;
  border-radius: 10px;
  background: #e5e5e5;
}
.toggle-track::after {
  content: '';
  display: block;
  width: 10px;
  height: 10px;
  margin: 2px;
  border-radius: 50%;
  background: #fff;
  transition: transform 0.15s;
}
.toggle-row input:checked + .toggle-track {
  background: #171717;
  border-color: #171717;
}
.toggle-row input:checked + .toggle-track::after {
  transform: translateX(12px);
}
.toggle-row input:focus-visible + .toggle-track {
  outline: 2px solid var(--focus);
  outline-offset: 4px;
}
.studio-controls > .button {
  width: 100%;
  margin-top: 19px;
  min-height: 34px;
  font-size: 12px;
}
.code-panel {
  grid-column: 1 / -1;
  border-top: 1px solid var(--border);
}
summary {
  cursor: pointer;
  list-style: none;
}
summary::-webkit-details-marker {
  display: none;
}
.code-panel > summary,
.example-index > summary {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 51px;
  padding: 12px 24px;
  font-size: 13px;
}
.code-panel > summary::before,
.example-index > summary::before {
  content: '';
  width: 6px;
  height: 6px;
  border-right: 1px solid currentColor;
  border-bottom: 1px solid currentColor;
  transform: rotate(-45deg);
  margin-right: 3px;
}
.code-panel[open] > summary::before,
.example-index[open] > summary::before {
  transform: rotate(45deg);
}
.code-panel > summary span,
.example-index > summary span {
  margin-left: auto;
  color: var(--muted);
  font-size: 11px;
}
.code-panel > summary:hover,
.example-index > summary:hover {
  background: var(--subtle);
}
.code-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 20px;
  min-height: 50px;
  background: var(--subtle);
  border-bottom: 1px solid var(--border);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
}
.code-toolbar > div {
  display: flex;
  gap: 8px;
}
.code-panel .code-toolbar {
  border-top: 1px solid var(--border);
}
.code-panel pre {
  max-height: 360px;
  padding: 24px;
  background: var(--subtle);
  font-size: 12px;
  line-height: 1.75;
}
.syntax-keyword {
  color: #9b248a;
}
.syntax-string {
  color: #176b39;
}
.syntax-number {
  color: #005cc5;
}
.syntax-comment {
  color: #666;
}
.split-section {
  display: grid;
  grid-template-columns: 340px minmax(0, 1fr);
  border-top: 1px solid var(--border);
}
.section-intro {
  padding: 40px 32px;
  border-right: 1px solid var(--border);
}
.section-intro > p {
  margin-top: 16px;
  font-size: 13px;
}
.section-intro > p + p {
  margin-top: 24px;
}
.section-intro > .text-link {
  margin-top: 24px;
}
.import-code {
  margin-top: 9px;
  font-size: 11px;
}
.quickstart-code {
  min-width: 0;
  background: var(--subtle);
}
.quickstart-code pre {
  padding: 24px;
  font-size: 12px;
  line-height: 1.8;
}
.reference-content {
  min-width: 0;
}
.api-list details {
  border-bottom: 1px solid var(--border);
}
.api-list summary {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 20px 50px 20px 24px;
}
.api-list summary code {
  font-size: 12px;
  overflow-wrap: anywhere;
  line-height: 1.6;
}
.api-list summary span {
  font-size: 12px;
  color: var(--muted);
}
.api-list summary::after {
  content: '+';
  position: absolute;
  top: 50%;
  right: 25px;
  transform: translateY(-50%);
  font-size: 18px;
  color: #737373;
  font-weight: 300;
}
.api-list details[open] summary::after {
  content: '−';
}
.api-list summary:hover {
  background: var(--subtle);
}
.api-body {
  padding: 0 24px 24px;
  font-size: 13px;
}
.api-body p {
  max-width: 72ch;
}
.api-body p + p {
  margin-top: 14px;
}
.api-body a {
  text-decoration: underline;
}
.api-body pre {
  padding: 16px;
  margin-block: 16px;
  background: var(--subtle);
  line-height: 1.75;
  font-size: 11px;
}
.api-body pre:last-child {
  margin-bottom: 0;
}
.agent-resources {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 13px;
  margin-top: 40px;
}
.agent-resources h3 {
  margin-bottom: 1px;
  font-size: 13px;
}
.agent-resources .text-link {
  color: var(--muted);
  font-size: 12px;
}
.agent-resources .button {
  margin-top: 7px;
  font-size: 12px;
  min-height: 36px;
}
.example-index > summary {
  min-height: 68px;
}
#static-examples {
  padding-inline: 24px;
}
#static-examples article {
  padding-block: 24px;
  border-top: 1px solid var(--border);
}
#static-examples p {
  margin-block: 10px 20px;
  font-size: 13px;
}
#static-examples pre {
  padding: 16px;
  background: var(--subtle);
  line-height: 1.8;
  font-size: 11px;
}
.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px;
  padding: 25px 32px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 12px;
}
.site-footer > span {
  color: var(--foreground);
}
.site-footer > div {
  display: flex;
  gap: 22px;
}
.site-footer a:hover {
  text-decoration: underline;
}
.muted {
  color: var(--muted);
}
.notice {
  padding: 20px 32px;
  border-top: 1px solid var(--border);
}
.status-toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translate(-50%, 8px);
  z-index: 30;
  max-width: min(460px, calc(100% - 32px));
  padding: 12px 18px;
  border-radius: 6px;
  background: #171717;
  color: #fff;
  font-size: 13px;
  opacity: 0;
  pointer-events: none;
  transition:
    opacity 0.15s,
    transform 0.15s;
}
.status-toast[data-visible='true'] {
  opacity: 1;
  transform: translate(-50%, 0);
}
.not-found {
  min-height: 100svh;
  padding: 80px 40px;
  display: grid;
  place-content: center;
}
.not-found p {
  margin-block: 24px;
}
@media (min-width: 900px) {
  .hero::before,
  .hero::after {
    content: '';
    position: absolute;
    z-index: 2;
    bottom: -5px;
    width: 9px;
    height: 9px;
    background:
      linear-gradient(#aaa, #aaa) center / 1px 9px no-repeat,
      linear-gradient(#aaa, #aaa) center / 9px 1px no-repeat;
  }
  .hero::before {
    left: -5px;
  }
  .hero::after {
    right: -5px;
  }
}
@media (max-width: 900px) {
  .page-width {
    width: calc(100% - 40px);
  }
  .site-header {
    padding-inline: 24px;
  }
  .hero-copy {
    padding-top: 56px;
  }
  .hero-copy p {
    font-size: 16px;
  }
  #ribbon {
    height: 260px;
  }
  .experiment-tabs {
    gap: 7px;
    padding-inline: 16px;
  }
  .studio-shell {
    grid-template-columns: minmax(0, 1fr) 220px;
  }
  .studio-controls {
    padding: 20px;
  }
  .canvas-toolbar,
  .canvas-caption {
    padding-inline: 16px;
  }
  .canvas-caption {
    flex-wrap: wrap;
    gap: 2px;
  }
  .split-section {
    grid-template-columns: 280px minmax(0, 1fr);
  }
  .section-intro {
    padding: 32px 24px;
  }
}
@media (max-width: 680px) {
  .page-width {
    width: calc(100% - 32px);
  }
  .site-header {
    height: 64px;
    gap: 18px;
    padding-inline: 16px;
  }
  .wordmark {
    gap: 5px;
    font-size: 17px;
  }
  .wordmark svg {
    width: 24px;
    height: 24px;
  }
  .site-header nav {
    gap: 16px;
  }
  .site-header nav a {
    font-size: 12px;
  }
  .header-source {
    display: none;
  }
  .hero-copy {
    padding: 44px 20px 20px;
  }
  h1 {
    font-size: 40px;
    line-height: 1.13;
  }
  .hero-copy p {
    margin-top: 20px;
    font-size: 14px;
  }
  .desktop-break {
    display: none;
  }
  .hero-actions {
    gap: 10px;
    margin-top: 25px;
  }
  #ribbon {
    height: 210px;
    width: 150%;
    margin-left: -25%;
  }
  .hero-art figcaption {
    grid-template-columns: 1fr auto;
    gap: 6px;
    padding: 10px 16px;
  }
  .hero-art figcaption > span:last-child {
    display: none;
  }
  .hero-art .quiet-button {
    font-size: 11px;
  }
  .section-heading {
    align-items: flex-start;
    padding: 32px 20px 24px;
  }
  h2 {
    font-size: 25px;
  }
  .section-heading p {
    font-size: 12px;
  }
  .section-heading .text-link {
    font-size: 11px;
    padding-top: 4px;
  }
  .experiment-tabs {
    gap: 8px;
    padding-inline: 12px;
  }
  .experiment-tabs button {
    font-size: 12px;
  }
  .studio-shell {
    grid-template-columns: minmax(0, 1fr);
  }
  .canvas-toolbar {
    min-height: 45px;
  }
  .canvas-stage {
    aspect-ratio: 4 / 3;
  }
  .canvas-caption {
    min-height: 54px;
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
  }
  .studio-controls {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: start;
    column-gap: 24px;
    row-gap: 8px;
    border-left: 0;
    border-top: 1px solid var(--border);
    padding: 20px;
  }
  .controls-intro {
    grid-column: 1 / -1;
    margin-bottom: 12px;
  }
  .controls-intro h3 {
    display: none;
  }
  .controls-intro p {
    margin-top: 0;
  }
  .control-row {
    margin-bottom: 8px;
  }
  .toggle-row {
    min-height: 36px;
  }
  .studio-controls > .button {
    margin-top: 6px;
  }
  .code-panel > summary {
    padding-inline: 20px;
  }
  .code-toolbar {
    padding-inline: 16px;
  }
  .code-toolbar > div {
    gap: 2px;
  }
  .code-toolbar .quiet-button {
    font-size: 11px;
  }
  .code-panel pre {
    padding: 20px;
    font-size: 11px;
  }
  .split-section {
    grid-template-columns: minmax(0, 1fr);
  }
  .section-intro {
    padding: 32px 20px;
    border-right: 0;
  }
  .section-intro > p {
    max-width: 45ch;
    margin-top: 13px;
  }
  .section-intro > p + p {
    margin-top: 20px;
  }
  .section-intro > .text-link {
    margin-top: 20px;
  }
  .quickstart-code {
    border-top: 1px solid var(--border);
  }
  .quickstart-code pre {
    padding: 20px;
    font-size: 11px;
  }
  .reference-content {
    border-top: 1px solid var(--border);
  }
  .api-list summary {
    padding: 18px 42px 18px 20px;
  }
  .api-list summary code {
    font-size: 11px;
  }
  .api-list summary::after {
    right: 20px;
  }
  .api-body {
    padding-inline: 20px;
  }
  .agent-resources {
    gap: 11px;
    margin-top: 24px;
  }
  .agent-resources .button {
    margin-top: 3px;
  }
  .site-footer {
    padding: 24px 20px;
    gap: 14px;
    font-size: 11px;
  }
  .site-footer > div {
    gap: 20px;
  }
}
@media (max-width: 370px) {
  .site-header nav {
    gap: 10px;
  }
  .site-header {
    gap: 10px;
    padding-inline: 12px;
  }
  h1 {
    font-size: 35px;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    transition: none !important;
  }
}