:root{
--canvas:#f7f7f4;
--canvas-soft:#fafaf7;
--surface-card:#ffffff;
--surface-strong:#e6e5e0;
--hairline:#e6e5e0;
--hairline-soft:#efeee8;
--hairline-strong:#cfcdc4;
--primary:#f54e00;
--primary-active:#d04200;
--ink:#26251e;
--body:#5a5852;
--muted:#807d72;
--muted-soft:#a09c92;
--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}
html{-webkit-text-size-adjust:100%}
body{
margin:0;
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}
a{color:var(--ink);text-decoration:none}
a:hover{color:var(--primary)}
img{max-width:100%;height:auto;display:block}
h1,h2,h3{color:var(--ink);font-weight:400;margin:0}
p{margin:0 0 16px}
.section{padding:80px 0}
.section-tight{padding:56px 0}
.eyebrow{
font-size:11px;
font-weight:600;
letter-spacing:0.88px;
text-transform:uppercase;
color:var(--muted);
margin:0 0 16px;
}
.display-mega{font-size:72px;line-height:1.1;letter-spacing:-2.16px}
.display-lg{font-size:36px;line-height:1.2;letter-spacing:-0.72px}
.display-md{font-size:26px;line-height:1.25;letter-spacing:-0.325px}
.display-sm{font-size:22px;line-height:1.3;letter-spacing:-0.11px}
.lead{font-size:18px;color:var(--body);max-width:60ch}
.muted{color:var(--muted)}
.top-nav{
background:var(--canvas);
border-bottom:1px solid var(--hairline);
position:sticky;
top:0;
z-index:40;
}
.nav-inner{height:64px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.wordmark{font-size:18px;font-weight:600;color:var(--ink);letter-spacing:-0.3px;white-space:nowrap}
.wordmark span{color:var(--primary)}
.nav-menu{display:flex;align-items:center;gap:24px}
.nav-link{font-size:14px;font-weight:500;color:var(--ink)}
.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}
.hero{background:var(--canvas);padding:88px 0 64px}
.hero-grid{display:grid;grid-template-columns:1.1fr 0.9fr;gap:48px;align-items:center}
.hero h1{margin-bottom:20px}
.hero .lead{margin-bottom:24px}
.hero-meta{font-size:13px;color:var(--muted);margin-top:24px}
.hero-figure{
background:var(--surface-card);
border:1px solid var(--hairline);
border-radius:var(--r-lg);
overflow:hidden;
}
.hero-figure img{width:100%;aspect-ratio:4/3;object-fit:cover}
.hero-figure figcaption{font-size:13px;color:var(--muted);padding:12px 16px;border-top:1px solid var(--hairline)}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.btn{
display:inline-flex;align-items:center;justify-content:center;
font-size:14px;font-weight:500;line-height:1;
border-radius:var(--r-md);
padding:0 18px;height:40px;
border:1px solid transparent;cursor:pointer;
font-family:var(--sans);
}
.btn-primary{background:var(--primary);color:var(--on-primary)}
.btn-primary:hover{background:var(--primary-active);color:var(--on-primary)}
.btn-download{background:var(--ink);color:var(--canvas);height:44px;padding:0 20px}
.btn-download:hover{color:var(--canvas);opacity:0.92}
.btn-secondary{background:var(--surface-card);color:var(--ink);border:1px solid var(--hairline-strong)}
.btn-secondary:hover{color:var(--ink);border-color:var(--ink)}
.btn-text{color:var(--ink);font-weight:500;font-size:14px}
.btn-text:hover{color:var(--primary)}
.badge{
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;
}
.section-head{max-width:62ch;margin-bottom:32px}
.section-head .display-lg{margin-bottom:12px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.card{
background:var(--surface-card);
border:1px solid var(--hairline);
border-radius:var(--r-lg);
padding:24px;
}
.card h3{font-size:18px;font-weight:600;margin-bottom:8px}
.card p{font-size:15px;margin-bottom:0;color:var(--body)}
.card .badge{margin-bottom:16px}
.feature-media{
background:var(--surface-card);
border:1px solid var(--hairline);
border-radius:var(--r-lg);
overflow:hidden;
}
.feature-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.feature-media figcaption{font-size:13px;color:var(--muted);padding:12px 16px;border-top:1px solid var(--hairline)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.split.reverse .split-media{order:2}
.split h2{margin-bottom:12px}
.checklist{list-style:none;padding:0;margin:16px 0 0}
.checklist li{position:relative;padding:0 0 12px 26px;font-size:15px;color:var(--body)}
.checklist li:before{content:"";position:absolute;left:0;top:6px;width:10px;height:10px;border-radius:2px;background:var(--primary)}
.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;
line-height:1.5;
color:var(--ink);
overflow-x:auto;
white-space:pre;
}
.band-soft{background:var(--canvas-soft);border-top:1px solid var(--hairline);border-bottom:1px solid var(--hairline)}
.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.stat .stat-k{font-size:22px;line-height:1.3;letter-spacing:-0.11px;color:var(--ink)}
.stat .stat-v{font-size:14px;color:var(--muted);margin-top:4px}
.contact-grid{display:grid;grid-template-columns:0.9fr 1.1fr;gap:48px;align-items:start}
.form-card{
background:var(--surface-card);
border:1px solid var(--hairline);
border-radius:var(--r-lg);
padding:32px;
}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--ink);margin-bottom:6px}
.field input{
width:100%;
background:var(--surface-card);
color:var(--ink);
border:1px solid var(--hairline-strong);
border-radius:var(--r-md);
height:44px;
padding:0 16px;
font-size:15px;
font-family:var(--sans);
}
.field input:focus{outline:none;border-color:var(--ink)}
.field input::placeholder{color:var(--muted-soft)}
.form-note{font-size:13px;color:var(--muted);margin:8px 0 16px}
.form-status{display:none;font-size:14px;border-radius:var(--r-md);padding:12px 16px;margin-top:16px}
.form-status.show{display:block}
.form-status.success{background:rgba(31,138,101,0.1);color:var(--success);border:1px solid rgba(31,138,101,0.3)}
.btn[disabled]{opacity:0.6;cursor:default}
.byline{font-size:13px;color:var(--muted);margin-bottom:32px}
.article-hero{
background:var(--surface-card);
border:1px solid var(--hairline);
border-radius:var(--r-lg);
overflow:hidden;
margin-bottom:32px;
}
.article-hero img{width:100%;max-height:420px;object-fit:cover}
.article-hero figcaption{font-size:13px;color:var(--muted);padding:12px 16px;border-top:1px solid var(--hairline)}
.prose{max-width:72ch}
.prose h2{font-size:26px;line-height:1.25;letter-spacing:-0.325px;margin:40px 0 12px}
.prose h3{font-size:22px;line-height:1.3;letter-spacing:-0.11px;margin:28px 0 10px}
.prose p{font-size:16px;line-height:1.6;color:var(--body)}
.prose ul,.prose ol{padding-left:22px;color:var(--body);line-height:1.6}
.prose li{margin-bottom:8px}
.prose a{color:var(--primary);text-decoration:underline;text-underline-offset:2px}
.callout{
background:var(--canvas-soft);
border:1px solid var(--hairline);
border-left:3px solid var(--primary);
border-radius:var(--r-md);
padding:16px 20px;
margin:24px 0;
font-size:15px;
color:var(--ink);
}
.refs{font-size:14px;color:var(--body)}
.refs li{margin-bottom:8px}
.related{margin-top:48px;border-top:1px solid var(--hairline);padding-top:32px}
.crumbs{font-size:13px;color:var(--muted);margin-bottom:16px}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--primary)}
.cookie{
position:fixed;
left:24px;right:24px;bottom:24px;
max-width:560px;
margin:0 auto;
background:var(--surface-card);
border:1px solid var(--hairline-strong);
border-radius:var(--r-lg);
padding:20px 24px;
z-index:60;
display:none;
}
.cookie.show{display:block}
.cookie p{font-size:14px;color:var(--body);margin-bottom:16px}
.cookie a{color:var(--primary);text-decoration:underline}
.cookie-actions{display:flex;gap:12px}
.page-hero{background:var(--canvas);padding:64px 0 24px}
@media (max-width:1024px){
.display-mega{font-size:56px;letter-spacing:-1.6px}
.hero-grid{grid-template-columns:1fr;gap:32px}
.split,.contact-grid{grid-template-columns:1fr;gap:32px}
.split.reverse .split-media{order:0}
.grid-3{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
.nav-menu{
position:absolute;top:64px;left:0;right:0;
background:var(--canvas);
border-bottom:1px solid var(--hairline);
flex-direction:column;align-items:flex-start;
gap:0;padding:8px 24px 16px;
display:none;
}
.nav-menu.open{display:flex}
.nav-menu .nav-link{padding:10px 0;width:100%}
.nav-toggle{display:flex}
}
@media (max-width:640px){
.section{padding:56px 0}
.hero{padding:48px 0 40px}
.display-mega{font-size:32px;letter-spacing:-0.8px}
.display-lg{font-size:28px;letter-spacing:-0.5px}
.grid-3,.grid-2,.stat-row{grid-template-columns:1fr}
.form-card{padding:24px}
}