:root {
  --ink:#203138;
  --text:#53686e;
  --muted:#657b81;
  --accent:#287a87;
  --line:#dce5e7;
  --surface:#f3f6f6;
  --width:1180px;
  --gutter:32px
}
* {
  box-sizing:border-box
}
html {
  scroll-behavior:smooth;
  scroll-padding-top:92px
}
body {
  margin:0;
  color:var(--ink);
  background:#fff;
  font:15px/1.75 Arial,Helvetica,sans-serif;
  -webkit-font-smoothing:antialiased
}
h1,h2,h3,h4,p,figure {
  margin:0
}
h1,h2,h3 {
  font-weight:500;
  letter-spacing:-.5px
}
h2 {
  font-size:34px;
  line-height:1.3
}
h3 {
  font-size:20px;
  line-height:1.4
}
a {
  color:var(--accent);
  text-decoration:none
}
a:hover {
  text-decoration:underline
}
button {
  font:inherit;
  cursor:pointer
}
a,button,summary {
  -webkit-tap-highlight-color:transparent
}
a:focus-visible,button:focus-visible,summary:focus-visible {
  outline:2px solid var(--accent);
  outline-offset:5px
}
img,video {
  display:block;
  max-width:100%;
  height:auto
}
video {
  width:100%;
  background:#e9e8e2
}
figure {
  min-width:0
}
button {
  color:inherit
}
sup {
  font-size:.65em
}
[hidden] {
  display:none!important
}
.container {
  width:min(var(--width),calc(100% - var(--gutter)*2));
  margin-inline:auto
}
.skip {
  position:absolute;
  top:-90px;
  left:15px;
  z-index:100;
  background:#fff;
  padding:10px
}
.skip:focus {
  top:10px
}
.site-header {
  position:sticky;
  top:0;
  z-index:20;
  background:#fffffff5;
  border-bottom:1px solid #e5ebed
}
.nav {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:30px;
  min-height:70px
}
.brand {
  font-size:20px;
  font-weight:600;
  color:#203138;
  letter-spacing:-.5px;
  flex-shrink:0
}
.nav-links {
  display:flex;
  gap:28px;
  min-width:0;
  white-space:nowrap
}
.nav-links a {
  font-size:13px;
  color:#53686e
}
.nav-code {
  font-size:13px;
  border-left:1px solid var(--line);
  padding-left:25px
}
.eyebrow {
  font-size:11px;
  letter-spacing:1px;
  color:var(--accent);
  margin-bottom:16px
}
.section {
  padding-block:75px;
  border-bottom:1px solid var(--line)
}
.section-heading {
  max-width:850px;
  margin-bottom:35px
}
.section-heading>p:last-child {
  max-width:750px;
  color:var(--text);
  font-size:15px;
  line-height:1.9;
  margin-top:19px
}
.fine-print {
  font-size:12px;
  color:var(--muted);
  line-height:1.85
}
.hero {
  padding-top:44px;
  padding-bottom:60px
}
.hero-copy {
  text-align:left
}
.hero h1 {
  font-size:clamp(32px,3.7vw,52px);
  font-weight:500;
  line-height:1.16;
  letter-spacing:-1.7px;
  text-wrap:balance
}
.title-line {
  display:block
}
.title-brand {
  color:var(--accent);
  font-weight:700
}
.action {
  display:inline-flex;
  gap:25px;
  align-items:center;
  padding:9px 15px;
  background:#287a87;
  color:white;
  border-radius:3px
}
.action:hover {
  background:#226b77;
  text-decoration:none
}
.hero-figure {
  width:100%;
  margin-top:30px
}
.film-tabs {
  display:flex;
  gap:5px;
  align-items:center;
  padding:0 0 10px;
  min-height:42px
}
.film-tabs button {
  border:0;
  background:none;
  padding:6px 13px;
  font-size:12px;
  color:#657d83;
  border-radius:3px
}
.film-tabs button[aria-pressed=true] {
  background:#e9f1f2;
  color:#246a77
}
.hero-figure video {
  width:100%;
  aspect-ratio:16/9;
  object-fit:contain;
  border-radius:5px
}
.launch figcaption {
  display:flex;
  justify-content:space-between;
  gap:20px;
  font-size:11px;
  line-height:1.8;
  color:var(--muted);
  margin-top:11px
}
.launch figcaption button {
  font-size:11px;
  color:var(--accent);
  padding:0;
  border:0;
  background:none;
  flex-shrink:0
}
.hero-facts {
  display:flex;
  justify-content:flex-start;
  gap:40px;
  margin-top:26px
}
.hero-facts p {
  display:flex;
  align-items:baseline;
  gap:9px
}
.hero-facts strong {
  font-size:20px;
  font-weight:500;
  line-height:1.3;
  letter-spacing:-.6px;
  font-variant-numeric:tabular-nums
}
.hero-facts em {
  font-size:16px;
  font-style:normal;
  color:#9eb2b8;
  margin-inline:4px
}
.hero-facts span {
  font-size:12px;
  color:var(--text);
  margin:0
}
.byline {
  display:flex;
  justify-content:space-between;
  gap:30px;
  padding-top:18px;
  font-size:11px;
  color:var(--muted)
}
.byline p:last-child {
  text-align:right
}
.section-links {
  display:flex;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
  align-items:center;
  margin-top:23px;
  padding-top:20px;
  border-top:1px solid var(--line);
  font-size:12px
}
.section-links p {
  max-width:550px;
  color:var(--muted)
}
.observation-section {
  background:#edf3f3;
  padding-block:65px
}
.observation-film video,.transfer-film video {
  aspect-ratio:16/5;
  object-fit:contain;
  border-radius:4px
}
.media-labels {
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  align-items:center;
  text-align:center;
  color:var(--text);
  font-size:14px;
  line-height:1.5;
  padding-bottom:12px
}
.media-labels p {
  padding-inline:8px
}
.transfer-evidence {
  min-width:0
}
.transfer-evidence h3 {
  font-size:15px;
  letter-spacing:0;
  margin-bottom:16px
}
.transfer-evidence>.table-block {
  margin-top:0
}
.method-section {
  background:#f6f8f8;
  padding-block:65px
}
.method-flow {
  display:grid;
  grid-template-columns:1fr 28px 1fr 28px 1fr;
  gap:24px;
  border-block:1px solid #cddbdd;
  padding:28px 0
}
.method-flow>div>span {
  font-size:10px;
  letter-spacing:.8px;
  color:#6e949d
}
.method-flow h3 {
  font-size:22px;
  margin:12px 0
}
.method-flow p {
  font-size:13px;
  line-height:1.8;
  color:var(--text)
}
.method-flow i {
  align-self:center;
  font-style:normal;
  color:#8eaab2;
  font-size:24px
}
.explanation {
  margin-top:26px;
  border-top:1px solid var(--line)
}
.explanation>summary {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:16px 0;
  font-size:14px;
  font-weight:500;
  color:var(--accent);
  cursor:pointer;
  list-style:none
}
.explanation>summary::-webkit-details-marker {
  display:none
}
.explanation>summary::after {
  content:"+";
  font-size:22px;
  font-weight:400;
  line-height:1;
  flex-shrink:0
}
.explanation[open]>summary::after {
  content:"−"
}
.explanation-body {
  padding:6px 0 20px;
  color:var(--text);
  font-size:14px;
  line-height:1.85
}
.explanation-body>p {
  max-width:850px
}
.explanation-body>p+p {
  margin-top:13px
}
.explanation-body>.table-block {
  margin-top:24px
}
.hero-about {
  margin:14px 0 0;
  border:0
}
.hero-about>summary {
  justify-content:flex-start;
  gap:10px;
  padding:8px 0;
  font-size:12px
}
.hero-about>summary::after {
  font-size:17px
}
.hero-about .explanation-body {
  max-width:850px;
  margin:12px 0 0;
  padding:24px;
  background:var(--surface);
  border-radius:4px
}
.method-details img {
  width:100%;
  background:white;
  margin-top:20px
}
.method-figure-link {
  display:inline-block;
  margin-top:10px;
  font-size:12px
}
.quickstart {
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1.3fr);
  gap:50px;
  align-items:center
}
.quickstart h3 {
  font-size:23px;
  margin-bottom:14px
}
.quickstart p {
  font-size:14px;
  color:var(--text);
  line-height:1.85
}
.quickstart .expected {
  font-size:12px;
  margin-top:15px
}
.code-panel {
  background:#edf3f3;
  border:1px solid #d6e3e5;
  border-radius:4px;
  padding:21px;
  min-width:0
}
.code-heading {
  display:flex;
  justify-content:space-between;
  gap:20px;
  font-size:12px;
  color:#5b7981
}
.code-heading button {
  border:0;
  background:none;
  padding:0;
  color:var(--accent);
  font-size:12px
}
.code-panel pre {
  font:12px/1.9 Consolas,monospace;
  overflow:auto;
  margin:20px 0 0
}
.code-panel #copy-status {
  font-size:12px
}
.usage-links {
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:35px;
  margin-top:35px
}
.usage-links>a {
  display:block;
  border-top:1px solid var(--line);
  padding-top:17px
}
.usage-links>a>span {
  font-size:11px;
  color:#7a969e
}
.usage-links h3 {
  font-size:19px;
  color:#284e58;
  margin:10px 0
}
.usage-links p {
  font-size:13px;
  color:var(--text);
  line-height:1.8
}
.usage-links+.fine-print {
  margin-top:25px
}
.site-footer {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:30px;
  padding-block:27px;
  font-size:12px
}
.site-footer p {
  font-size:11px;
  color:var(--muted)
}
dialog {
  border:1px solid var(--line);
  border-radius:5px;
  padding:20px;
  background:white;
  color:var(--ink);
  width:fit-content;
  max-width:94vw;
  max-height:92vh;
  overflow:auto
}
dialog::backdrop {
  background:#0d2028c7
}
.dialog-header {
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:30px;
  margin-bottom:15px
}
.dialog-header h2 {
  font-size:15px;
  letter-spacing:0
}
.dialog-header button {
  background:none;
  border:0;
  font-size:12px;
  color:var(--accent)
}
#expanded-film {
  width:auto;
  max-width:88vw;
  max-height:75vh;
  margin:auto
}
@media(max-width:1000px) {
  .quickstart {
    gap:30px
  }
  .method-flow {
    gap:17px
  }
  .method-flow h3 {
    font-size:20px
  }
}
@media(max-width:700px) {
  :root {
    --gutter:20px
  }
  html {
    scroll-padding-top:76px
  }
  .nav {
    min-height:60px;
    gap:18px
  }
  .brand {
    font-size:18px
  }
  .nav-links {
    gap:16px;
    overflow:auto;
    white-space:nowrap
  }
  .nav-links a {
    font-size:11px
  }
  .nav-code {
    display:none
  }
  .hero {
    padding-top:30px;
    padding-bottom:40px
  }
  .hero h1 {
    font-size:clamp(24px,6.8vw,34px);
    line-height:1.2;
    letter-spacing:-.65px;
    text-wrap:pretty
  }
  .title-line {
    display:inline
  }
  .hero-about {
    margin-top:8px
  }
  .hero-about .explanation-body {
    padding:18px;
    margin-top:12px
  }
  .explanation>summary {
    font-size:13px;
    padding-block:14px
  }
  .hero-about>summary {
    font-size:11px;
    padding-block:8px
  }
  .explanation-body {
    font-size:13px
  }
  .hero-figure {
    margin-top:24px
  }
  .hero-facts {
    gap:25px;
    margin-top:21px
  }
  .hero-facts p {
    display:block;
    text-align:left
  }
  .hero-facts strong {
    font-size:19px
  }
  .hero-facts em {
    font-size:14px;
    margin:0
  }
  .hero-facts span {
    display:block;
    font-size:10px;
    line-height:1.6;
    margin-top:3px
  }
  .byline {
    display:block;
    width:100%;
    font-size:10px;
    padding-top:15px
  }
  .byline p:last-child {
    text-align:left;
    margin-top:7px
  }
  .section {
    padding-block:45px
  }
  .section-heading {
    margin-bottom:25px
  }
  .eyebrow {
    font-size:10px;
    margin-bottom:12px
  }
  h2 {
    font-size:27px;
    line-height:1.3
  }
  .section-heading h2 br {
    display:none
  }
  .section-heading>p:last-child {
    font-size:13px;
    line-height:1.85;
    margin-top:15px
  }
  .film-tabs button {
    font-size:12px;
    padding:5px 12px
  }
  .launch figcaption {
    font-size:11px;
    gap:15px
  }
  .section-links {
    font-size:12px;
    gap:12px
  }
  .observation-section {
    padding-block:45px
  }
  .fine-print {
    font-size:11px
  }
  .comparison-frame video {
    aspect-ratio:960/1328
  }
  .comparison-frame .media-labels {
    position:absolute;
    width:1px;
    height:1px;
    padding:0;
    margin:-1px;
    overflow:hidden;
    clip-path:inset(50%);
    white-space:nowrap
  }
  .method-section {
    padding-block:45px
  }
  .method-flow {
    grid-template-columns:1fr;
    gap:15px;
    padding:23px 0
  }
  .method-flow i {
    font-size:18px;
    transform:rotate(90deg);
    justify-self:start;
    line-height:18px
  }
  .method-flow h3 {
    font-size:20px;
    margin:8px 0
  }
  .method-flow h3 br {
    display:none
  }
  .quickstart {
    grid-template-columns:1fr;
    gap:23px
  }
  .quickstart p {
    font-size:13px
  }
  .quickstart h3 {
    font-size:21px
  }
  .code-panel {
    padding:17px
  }
  .code-panel pre {
    font-size:11px
  }
  .usage-links {
    grid-template-columns:1fr;
    gap:23px;
    margin-top:29px
  }
  .usage-links h3 {
    font-size:19px;
    margin-top:7px
  }
  .site-footer {
    flex-wrap:wrap;
    gap:18px
  }
  .site-footer p {
    order:3;
    flex-basis:100%
  }
  .site-footer>a:last-child {
    font-size:11px
  }
  .dialog-header h2 {
    font-size:12px
  }
  .dialog-header {
    gap:15px
  }
  dialog {
    padding:13px
  }
}
@media(max-width:360px) {
  .hero-facts {
    gap:17px
  }
  .nav-links {
    gap:13px
  }
  .nav-links a {
    font-size:10px
  }
}
@media(prefers-reduced-motion:reduce) {
  html {
    scroll-behavior:auto
  }
}