: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;
  --success:#1f8a65;
  --error:#cf2d56;
  --t-thinking:#dfa88f;
  --t-grep:#9fc9a2;
  --t-read:#9fbbe0;
  --t-edit:#c0a8dd;
  --t-done:#c08532;
  --max:1200px;
  --r-xs:4px;
  --r-sm:6px;
  --r-md:8px;
  --r-lg:12px;
  --r-xl:16px;
  --r-pill:9999px;
  --font:Inter,system-ui,"Helvetica Neue",Helvetica,Arial,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  background:var(--canvas);
  color:var(--body);
  font-size:16px;
  line-height:1.5;
  letter-spacing:-0.15px;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--ink);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;display:block}

.container{max-width:var(--max);margin:0 auto;padding:0 24px}

h1,h2,h3,h4{color:var(--ink);font-weight:400;letter-spacing:-0.5px}
h1{font-size:72px;line-height:1.1;letter-spacing:-2.16px}
h2{font-size:36px;line-height:1.2;letter-spacing:-0.72px}
h3{font-size:26px;line-height:1.25;letter-spacing:-0.325px}
h4{font-size:22px;line-height:1.3;letter-spacing:-0.11px}
p{margin:0 0 16px}
p:last-child{margin-bottom:0}

.label{
  font-size:11px;
  font-weight:600;
  letter-spacing:0.88px;
  text-transform:uppercase;
  color:var(--muted);
}

.site-nav{
  background:var(--canvas);
  border-bottom:1px solid var(--hairline);
  position:sticky;
  top:0;
  z-index:50;
}
.site-nav .container{
  height:64px;
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  color:var(--ink);
}
.brand:hover{text-decoration:none}
.brand .dot{width:10px;height:10px;border-radius:50%;background:var(--primary)}
.brand b{font-weight:600}
.nav-links{
  display:flex;
  align-items:center;
  gap:28px;
  list-style:none;
}
.nav-links a{
  font-size:14px;
  font-weight:500;
  color:var(--body);
}
.nav-links a:hover{color:var(--ink);text-decoration:none}
.nav-toggle{
  display:none;
  background:none;
  border:1px solid var(--hairline-strong);
  border-radius:var(--r-md);
  width:40px;height:40px;
  cursor:pointer;
  align-items:center;
  justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

.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;
  transition:background .15s ease,border-color .15s ease;
}
.btn-primary{
  background:var(--primary);
  color:var(--on-primary);
  padding:10px 18px;
  height:40px;
}
.btn-primary:hover{background:var(--primary-active);text-decoration:none}
.btn-secondary{
  background:var(--surface-card);
  color:var(--ink);
  border:1px solid var(--hairline-strong);
  padding:10px 18px;
  height:40px;
}
.btn-secondary:hover{text-decoration:none;border-color:var(--ink)}
.btn-ink{
  background:var(--ink);
  color:var(--canvas);
  padding:12px 20px;
  height:44px;
}
.btn-ink:hover{text-decoration:none;opacity:.92}

section{padding:80px 0}
.section-sm{padding:56px 0}

.hero{padding:88px 0 64px}
.hero .label{margin-bottom:20px}
.hero h1{max-width:14ch;margin-bottom:20px}
.hero .lead{font-size:18px;color:var(--body);max-width:60ch;margin-bottom:28px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:14px}
.updated{font-size:13px;color:var(--muted)}
.hero-figure{margin-top:48px}
.hero-figure img{
  width:100%;
  height:auto;
  border-radius:var(--r-lg);
  border:1px solid var(--hairline);
}
figure{margin:0}
figcaption{font-size:13px;color:var(--muted);margin-top:8px;line-height:1.4}
figcaption a{color:var(--muted)}

.grid{display:grid;gap:24px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}

.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;letter-spacing:0;margin-bottom:10px}
.card h4{font-size:18px;font-weight:600;letter-spacing:0;margin-bottom:8px}
.card p{font-size:15px}
.card .label{margin-bottom:14px}

.band-soft{background:var(--canvas)}
.band-card{background:var(--surface-card);border-top:1px solid var(--hairline);border-bottom:1px solid var(--hairline)}

.section-head{max-width:62ch;margin-bottom:40px}
.section-head .label{margin-bottom:14px}
.section-head p{font-size:17px;margin-top:14px}

.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;
}

.spec-list{list-style:none;display:grid;gap:0}
.spec-list li{
  display:flex;
  justify-content:space-between;
  gap:16px;
  padding:14px 0;
  border-bottom:1px solid var(--hairline);
  font-size:15px;
}
.spec-list li:last-child{border-bottom:none}
.spec-list .k{color:var(--ink)}
.spec-list .v{color:var(--body);text-align:right}

.facts{list-style:none;display:grid;gap:14px}
.facts li{
  padding-left:18px;
  position:relative;
  font-size:15px;
}
.facts li::before{
  content:"";
  position:absolute;
  left:0;top:9px;
  width:6px;height:6px;
  border-radius:50%;
  background:var(--primary);
}

.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.article-card{
  background:var(--surface-card);
  border:1px solid var(--hairline);
  border-radius:var(--r-lg);
  overflow:hidden;
  display:flex;
  flex-direction:column;
}
.article-card img{width:100%;height:180px;object-fit:cover;border-bottom:1px solid var(--hairline)}
.article-card .body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.article-card h3{font-size:18px;font-weight:600;letter-spacing:0}
.article-card p{font-size:14px;color:var(--body)}
.article-card .read{font-size:14px;font-weight:500;color:var(--primary);margin-top:auto}
.article-card .read:hover{color:var(--primary-active)}

.article-page{padding:56px 0 80px}
.article-page .container{max-width:760px}
.article-head .label{margin-bottom:14px}
.article-head h1{font-size:42px;line-height:1.15;letter-spacing:-1.2px;margin-bottom:14px}
.article-head .lead{font-size:18px;color:var(--body);margin-bottom:8px}
.article-figure{margin:32px 0}
.article-figure img{width:100%;border-radius:var(--r-lg);border:1px solid var(--hairline)}
.article-body h2{font-size:28px;letter-spacing:-0.5px;margin:40px 0 14px}
.article-body h3{font-size:21px;letter-spacing:-0.2px;margin:28px 0 10px}
.article-body p{font-size:16px;color:var(--body)}
.article-body ul,.article-body ol{margin:0 0 16px 20px}
.article-body li{margin-bottom:8px;font-size:16px;color:var(--body)}
.callout{
  background:var(--canvas-soft);
  border:1px solid var(--hairline);
  border-left:3px solid var(--primary);
  border-radius:var(--r-md);
  padding:18px 20px;
  margin:24px 0;
  font-size:15px;
}
.callout strong{color:var(--ink)}
.refs{margin-top:40px;padding-top:24px;border-top:1px solid var(--hairline)}
.refs h3{font-size:16px;font-weight:600;letter-spacing:0;margin-bottom:12px}
.refs ul{list-style:none}
.refs li{margin-bottom:8px;font-size:14px}
.refs a{color:var(--body)}

.page-body{padding:56px 0 80px}
.page-body .container{max-width:780px}
.page-body h1{font-size:42px;letter-spacing:-1.2px;margin-bottom:8px}
.page-body h2{font-size:24px;letter-spacing:-0.3px;margin:32px 0 12px}
.page-body p{font-size:16px}
.page-body ul{margin:0 0 16px 20px}
.page-body li{margin-bottom:8px;font-size:16px}

.contact{background:var(--canvas)}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.contact-info p{font-size:15px}
.contact-info .label{margin-bottom:14px}
.contact-info .row{padding:12px 0;border-bottom:1px solid var(--hairline)}
.contact-info .row:last-child{border-bottom:none}
.contact-info .row span{display:block;font-size:13px;color:var(--muted);margin-bottom:2px}
.contact-info .row b{font-weight:500;color:var(--ink);font-size:15px}

form .field{margin-bottom:18px}
form label{display:block;font-size:14px;color:var(--ink);margin-bottom:6px}
form input{
  width:100%;
  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(--font);
  font-size:15px;
}
form input:focus{outline:none;border-color:var(--ink)}
form input.invalid{border-color:var(--error)}
.error-msg{color:var(--error);font-size:13px;margin-top:6px;display:none}
.error-msg.show{display:block}
.form-status{
  display:none;
  margin-top:14px;
  font-size:15px;
  color:var(--success);
  font-weight:500;
}
.form-status.show{display:block}
.btn[disabled]{opacity:.6;cursor:not-allowed}
.spinner{
  width:15px;height:15px;
  border:2px solid rgba(255,255,255,.4);
  border-top-color:#fff;
  border-radius:50%;
  margin-right:8px;
  animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

.cta-band{padding:96px 0;text-align:center;background:var(--canvas);border-top:1px solid var(--hairline)}
.cta-band h2{margin-bottom:14px}
.cta-band p{max-width:52ch;margin:0 auto 24px}

.site-footer{
  background:var(--canvas);
  border-top:1px solid var(--hairline);
  padding:64px 0 48px;
  color:var(--body);
}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:48px}
.footer-col h4{font-size:11px;font-weight:600;letter-spacing:0.88px;text-transform:uppercase;color:var(--muted);margin-bottom:16px}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:var(--body)}
.footer-col a:hover{color:var(--ink)}
.footer-about p{font-size:14px;margin-top:14px;max-width:42ch}
.footer-about .brand{margin-bottom:0}
.footer-bottom{
  border-top:1px solid var(--hairline);
  padding-top:24px;
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--muted);
}
.disclaimer{font-size:13px;color:var(--muted);margin-top:16px;max-width:80ch;line-height:1.5}

.cookie-banner{
  position:fixed;
  left:24px;right:24px;bottom:24px;
  max-width:var(--max);
  margin:0 auto;
  background:var(--surface-card);
  border:1px solid var(--hairline-strong);
  border-radius:var(--r-lg);
  padding:20px 24px;
  display:none;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  z-index:100;
}
.cookie-banner.show{display:flex}
.cookie-banner p{font-size:14px;margin:0;max-width:62ch}
.cookie-banner .actions{display:flex;gap:12px;flex-shrink:0}
.cookie-banner .btn{height:38px;padding:8px 16px}

@media(max-width:1024px){
  h1{font-size:56px;letter-spacing:-1.6px}
  .article-grid{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .nav-links{
    display:none;
    position:absolute;
    top:64px;left:0;right:0;
    flex-direction:column;
    align-items:flex-start;
    gap:0;
    background:var(--canvas);
    border-bottom:1px solid var(--hairline);
    padding:8px 24px 16px;
  }
  .nav-links.open{display:flex}
  .nav-links li{width:100%;padding:10px 0}
  .nav-toggle{display:flex}
}
@media(max-width:640px){
  h1{font-size:32px;letter-spacing:-1px}
  h2{font-size:28px;letter-spacing:-0.5px}
  section{padding:56px 0}
  .grid-3,.grid-2,.article-grid,.contact-grid,.footer-grid{grid-template-columns:1fr}
  .footer-grid{gap:32px}
  .cookie-banner{flex-direction:column;align-items:flex-start}
  .cookie-banner .actions{width:100%}
  .cookie-banner .actions .btn{flex:1}
  .article-head h1,.page-body h1{font-size:32px;letter-spacing:-1px}
}