:root{
  --canvas:#f7f7f4;
  --canvas-soft:#fafaf7;
  --surface-card:#ffffff;
  --surface-strong:#e6e5e0;
  --hairline:#e6e5e0;
  --hairline-soft:#efeee8;
  --hairline-strong:#cfcdc4;
  --ink:#26251e;
  --body:#5a5852;
  --muted:#807d72;
  --muted-soft:#a09c92;
  --primary:#f54e00;
  --primary-active:#d04200;
  --on-primary:#ffffff;
  --tl-thinking:#dfa88f;
  --tl-grep:#9fc9a2;
  --tl-read:#9fbbe0;
  --tl-edit:#c0a8dd;
  --tl-done:#c08532;
  --success:#1f8a65;
  --error:#cf2d56;
  --sans:"Inter",system-ui,"Helvetica Neue",Helvetica,Arial,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --maxw:1200px;
  --r-xs:4px;--r-sm:6px;--r-md:8px;--r-lg:12px;--r-xl:16px;--r-pill:9999px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--canvas);
  color:var(--body);
  font-family:var(--sans);
  font-size:16px;line-height:1.5;letter-spacing:-0.15px;
  -webkit-font-smoothing:antialiased;
}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
img{max-width:100%;display:block}
a{color:var(--ink);text-decoration:none}
h1,h2,h3,h4{color:var(--ink);font-weight:400;line-height:1.2}
h1{font-size:72px;letter-spacing:-2.16px;line-height:1.1}
h2{font-size:36px;letter-spacing:-0.72px}
h3{font-size:26px;letter-spacing:-0.325px;line-height:1.25}
h4{font-size:22px;letter-spacing:-0.11px;line-height:1.3}
p{margin:0 0 16px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--ink);color:var(--canvas);padding:10px 16px;border-radius:var(--r-md);z-index:200}
.skip-link:focus{left:16px;top:16px}

.eyebrow{font-size:11px;font-weight:600;letter-spacing:0.88px;text-transform:uppercase;color:var(--muted)}
.lead{font-size:18px;color:var(--body);max-width:62ch}
.section{padding:80px 0}
.section-tight{padding:56px 0}
.divider{height:1px;background:var(--hairline);border:0}

.top-nav{background:var(--canvas);border-bottom:1px solid var(--hairline);position:sticky;top:0;z-index:100}
.nav-inner{height:64px;display:flex;align-items:center;justify-content:space-between}
.wordmark{font-size:18px;font-weight:600;color:var(--ink);letter-spacing:-0.3px;display:inline-flex;align-items:center}
.wordmark-mark{color:var(--primary);font-family:var(--mono);margin-right:6px}
.wordmark-amp{color:var(--muted)}
.nav-menu{display:flex;align-items:center;gap:24px}
.nav-link{font-size:14px;font-weight:500;color:var(--body)}
.nav-link:hover,.nav-link.is-active{color:var(--ink)}
.nav-link-strong{color:var(--primary)}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{width:22px;height:2px;background:var(--ink);display:block}

.btn{display:inline-flex;align-items:center;justify-content:center;font-size:14px;font-weight:500;border-radius:var(--r-md);cursor:pointer;border:1px solid transparent;font-family:var(--sans);transition:background .15s,color .15s}
.btn-primary{background:var(--primary);color:var(--on-primary);padding:10px 18px;height:40px}
.btn-primary:hover{background:var(--primary-active)}
.btn-secondary{background:var(--surface-card);color:var(--ink);border-color:var(--hairline-strong);padding:10px 18px;height:40px}
.btn-secondary:hover{border-color:var(--ink)}
.btn-download{background:var(--ink);color:var(--canvas);padding:12px 20px;height:44px}
.btn-download:hover{background:#000}
.btn-text{color:var(--ink);padding:10px 4px;height:40px;border-bottom:1px solid transparent}
.btn-text:hover{border-bottom-color:var(--ink)}

.hero{background:var(--canvas);padding:80px 0 64px}
.hero-eyebrow{margin-bottom:16px}
.hero h1{margin-bottom:20px;max-width:14ch}
.hero .lead{margin-bottom:32px}
.hero-actions{display:flex;gap:16px;align-items:center;flex-wrap:wrap}
.hero-figure{margin-top:48px;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--hairline);background:var(--surface-card)}
.hero-figure img{width:100%;height:auto;aspect-ratio:16/7;object-fit:cover}
.figure-caption{font-size:13px;color:var(--muted);padding:12px 16px;border-top:1px solid var(--hairline);background:var(--canvas-soft)}
.figure-caption a{color:var(--muted);border-bottom:1px solid var(--hairline-strong)}

.grid{display:grid;gap:24px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.section-head{max-width:60ch;margin-bottom:40px}
.section-head h2{margin:8px 0 12px}

.feature-card{background:var(--surface-card);border:1px solid var(--hairline);border-radius:var(--r-lg);padding:24px}
.feature-card h3{font-size:18px;font-weight:600;letter-spacing:0;margin-bottom:8px}
.feature-card .num{font-family:var(--mono);font-size:13px;color:var(--primary)}
.feature-card p{font-size:15px;margin:8px 0 0}

.badge-pill{display:inline-block;background:var(--surface-strong);color:var(--ink);font-size:11px;font-weight:600;letter-spacing:0.88px;text-transform:uppercase;border-radius:var(--r-pill);padding:4px 10px}

.code-block{background:var(--surface-card);border:1px solid var(--hairline);border-radius:var(--r-lg);padding:20px;font-family:var(--mono);font-size:13px;color:var(--ink);line-height:1.6;overflow-x:auto}
.code-block .c-key{color:var(--primary)}
.code-block .c-mut{color:var(--muted)}

.split{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.split-figure{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--hairline)}
.split-figure img{width:100%;aspect-ratio:4/3;object-fit:cover}

.fact-list{list-style:none;display:grid;gap:0;border:1px solid var(--hairline);border-radius:var(--r-lg);overflow:hidden;background:var(--surface-card)}
.fact-list li{padding:16px 20px;border-bottom:1px solid var(--hairline);display:flex;gap:16px;font-size:15px}
.fact-list li:last-child{border-bottom:0}
.fact-list .k{font-family:var(--mono);font-size:13px;color:var(--primary);min-width:90px}

.article-hero{padding:56px 0 32px}
.article-hero h1{font-size:48px;letter-spacing:-1.2px;max-width:20ch;margin:12px 0 16px;line-height:1.1}
.article-meta{font-size:13px;color:var(--muted);display:flex;gap:16px;flex-wrap:wrap;margin-top:16px}
.article-body{max-width:none}
.article-body h2{font-size:30px;letter-spacing:-0.5px;margin:48px 0 16px}
.article-body h3{font-size:22px;margin:32px 0 12px}
.article-body p{font-size:17px;letter-spacing:0.08px;color:var(--body)}
.article-body ul,.article-body ol{margin:0 0 20px 20px}
.article-body li{font-size:17px;margin-bottom:8px;color:var(--body)}
.article-body figure{margin:32px 0}
.article-body figure img{border-radius:var(--r-lg);border:1px solid var(--hairline);width:100%;aspect-ratio:3/2;object-fit:cover}
.article-body figcaption{font-size:13px;color:var(--muted);margin-top:8px}
.article-body figcaption a{color:var(--muted);border-bottom:1px solid var(--hairline-strong)}
.layout-narrow{max-width:760px;margin:0 auto}
.callout{background:var(--canvas-soft);border:1px solid var(--hairline);border-left:3px solid var(--primary);border-radius:var(--r-md);padding:20px 24px;margin:28px 0}
.callout h4{font-size:16px;font-weight:600;letter-spacing:0;margin-bottom:8px}
.callout p{font-size:15px;margin:0}
.ref-list{font-size:14px;color:var(--body);list-style:none}
.ref-list li{padding:10px 0;border-bottom:1px solid var(--hairline-soft)}
.ref-list a{color:var(--ink);border-bottom:1px solid var(--hairline-strong)}
.related{display:flex;gap:16px;flex-wrap:wrap;margin-top:16px}
.related a{font-size:14px;font-weight:500;color:var(--primary);border-bottom:1px solid transparent}
.related a:hover{border-bottom-color:var(--primary)}

.timeline{display:flex;flex-wrap:wrap;gap:8px;margin:24px 0}
.tl-pill{font-size:11px;font-weight:600;letter-spacing:0.88px;text-transform:uppercase;color:var(--ink);border-radius:var(--r-pill);padding:4px 10px}
.tl-thinking{background:var(--tl-thinking)}
.tl-grep{background:var(--tl-grep)}
.tl-read{background:var(--tl-read)}
.tl-edit{background:var(--tl-edit)}
.tl-done{background:var(--tl-done);color:var(--on-primary)}

.contact-band{background:var(--canvas);border-top:1px solid var(--hairline)}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.form-field{margin-bottom:16px;display:flex;flex-direction:column}
.form-field label{font-size:14px;font-weight:500;color:var(--ink);margin-bottom:6px}
.text-input{background:var(--surface-card);color:var(--ink);border:1px solid var(--hairline-strong);border-radius:var(--r-md);padding:12px 16px;height:44px;font-family:var(--sans);font-size:15px}
textarea.text-input{height:auto;min-height:120px;resize:vertical}
.text-input:focus{outline:2px solid var(--primary);outline-offset:1px;border-color:var(--primary)}
.form-status{font-size:14px;margin-top:8px;min-height:20px}
.form-status.is-success{color:var(--success)}
.form-note{font-size:13px;color:var(--muted);margin-top:12px}
.btn[disabled]{opacity:.6;cursor:default}

.footer{background:var(--canvas);border-top:1px solid var(--hairline);padding:64px 0 48px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px}
.footer-brand .wordmark{margin-bottom:12px}
.footer-note{font-size:14px;color:var(--muted);max-width:34ch}
.footer-head{font-size:11px;font-weight:600;letter-spacing:0.88px;text-transform:uppercase;color:var(--muted);margin-bottom:12px}
.footer-link{display:block;font-size:14px;color:var(--body);padding:5px 0}
.footer-link:hover{color:var(--ink)}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;margin-top:40px;padding-top:24px;border-top:1px solid var(--hairline);flex-wrap:wrap}
.footer-meta{font-size:13px;color:var(--muted);margin:0}

.cookie-banner{position:fixed;left:16px;right:16px;bottom:16px;max-width:560px;margin:0 auto;background:var(--surface-card);border:1px solid var(--hairline-strong);border-radius:var(--r-lg);padding:20px;display:flex;flex-direction:column;gap:12px;z-index:150}
.cookie-banner[hidden]{display:none}
.cookie-text{font-size:14px;color:var(--body);margin:0}
.cookie-text a{color:var(--ink);border-bottom:1px solid var(--hairline-strong)}
.cookie-actions{display:flex;gap:12px;justify-content:flex-end}

.page-hero{padding:56px 0 24px}
.page-hero h1{font-size:48px;letter-spacing:-1.2px;line-height:1.1;margin:12px 0 8px}
.legal-body h2{font-size:24px;letter-spacing:-0.3px;margin:32px 0 12px}
.legal-body p,.legal-body li{font-size:16px;color:var(--body)}
.legal-body ul{margin:0 0 16px 20px}

@media (max-width:1024px){
  h1{font-size:56px;letter-spacing:-1.6px}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:24px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .nav-toggle{display:flex}
  .nav-menu{display:none;position:absolute;left:0;right:0;top:64px;background:var(--canvas);border-bottom:1px solid var(--hairline);flex-direction:column;align-items:flex-start;gap:0;padding:8px 24px 16px}
  .nav-menu.is-open{display:flex}
  .nav-menu .nav-link{padding:12px 0;width:100%;border-bottom:1px solid var(--hairline-soft)}
}
@media (max-width:640px){
  h1{font-size:32px;letter-spacing:-0.8px}
  h2{font-size:28px;letter-spacing:-0.4px}
  .article-hero h1,.page-hero h1{font-size:32px;letter-spacing:-0.8px}
  .section{padding:56px 0}
  .grid-3,.grid-2,.contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero-figure img{aspect-ratio:4/3}
  .cookie-actions{justify-content:stretch}
  .cookie-actions .btn{flex:1}
}