: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;
  --on-primary:#ffffff;
  --primary:#f54e00;
  --primary-active:#d04200;
  --success:#1f8a65;
  --error:#cf2d56;
  --t-thinking:#dfa88f;
  --t-grep:#9fc9a2;
  --t-read:#9fbbe0;
  --t-edit:#c0a8dd;
  --t-done:#c08532;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--canvas);
  color:var(--body);
  font-family:Inter,system-ui,"Helvetica Neue",Helvetica,Arial,sans-serif;
  font-size:16px;
  line-height:1.5;
  letter-spacing:-0.015em;
  -webkit-font-smoothing:antialiased;
}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
a{color:var(--ink);text-decoration:none}
a:hover{color:var(--primary)}
img{max-width:100%;display:block}
h1,h2,h3,h4{color:var(--ink);font-weight:400;letter-spacing:-0.03em;line-height:1.2}
p{margin:0 0 16px}

.site-header{background:var(--canvas);border-bottom:1px solid var(--hairline)}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:600;color:var(--ink);letter-spacing:-0.02em}
.brand .dot{width:14px;height:14px;border-radius:9999px;background:var(--primary);display:inline-block}
.nav-menu{display:flex;align-items:center;gap:28px;list-style:none}
.nav-menu a{font-size:14px;font-weight:500;color:var(--ink)}
.nav-menu a:hover{color:var(--primary)}
.nav-toggle{display:none;background:none;border:1px solid var(--hairline-strong);border-radius:8px;padding:8px 10px;cursor:pointer;font-size:14px;color:var(--ink)}

.hero{padding:80px 0 48px}
.hero .eyebrow{font-size:11px;font-weight:600;letter-spacing:0.088em;text-transform:uppercase;color:var(--muted);margin-bottom:20px}
.hero h1{font-size:72px;line-height:1.1;letter-spacing:-0.03em;margin-bottom:20px;max-width:14ch}
.hero p.lead{font-size:18px;color:var(--body);max-width:62ch;margin-bottom:24px}
.hero-img{margin-top:48px;border:1px solid var(--hairline);border-radius:12px;overflow:hidden;background:var(--surface-card)}
.hero-img img{width:100%;height:520px;object-fit:cover}
.hero-img figcaption{font-size:13px;color:var(--muted);padding:12px 20px;border-top:1px solid var(--hairline)}

.btn{display:inline-flex;align-items:center;justify-content:center;font-size:14px;font-weight:500;border-radius:8px;padding:10px 18px;border:1px solid transparent;cursor:pointer;transition:background .15s,color .15s}
.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);padding:12px 20px;height:44px}
.btn-download:hover{color:var(--canvas);opacity:.92}
.btn-secondary{background:var(--surface-card);color:var(--ink);border:1px solid var(--hairline-strong)}
.btn-secondary:hover{color:var(--primary)}
.btn-row{display:flex;gap:12px;flex-wrap:wrap}

.section{padding:80px 0}
.section-label{font-size:11px;font-weight:600;letter-spacing:0.088em;text-transform:uppercase;color:var(--muted);margin-bottom:16px}
.section h2{font-size:36px;letter-spacing:-0.02em;margin-bottom:16px}
.section h3{font-size:26px;margin-bottom:12px}
.lede{font-size:18px;color:var(--body);max-width:70ch;margin-bottom:32px}

.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:12px;padding:24px}
.card h3{font-size:18px;font-weight:600;letter-spacing:0;margin-bottom:8px;color:var(--ink)}
.card p{font-size:16px;color:var(--body);margin-bottom:0}
.card .kicker{font-size:11px;font-weight:600;letter-spacing:0.088em;text-transform:uppercase;color:var(--muted);margin-bottom:12px}

.badge{display:inline-block;background:var(--surface-strong);color:var(--ink);font-size:11px;font-weight:600;letter-spacing:0.088em;text-transform:uppercase;border-radius:9999px;padding:4px 10px}

.article-card{background:var(--surface-card);border:1px solid var(--hairline);border-radius:12px;overflow:hidden;display:flex;flex-direction:column}
.article-card img{width:100%;height:200px;object-fit:cover}
.article-card .body{padding:24px;display:flex;flex-direction:column;gap:8px;flex:1}
.article-card h3{font-size:18px;font-weight:600;letter-spacing:0;color:var(--ink)}
.article-card p{font-size:16px;color:var(--body);flex:1}
.article-card .read{font-size:14px;font-weight:500;color:var(--primary)}

.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.split figure{border:1px solid var(--hairline);border-radius:12px;overflow:hidden;background:var(--surface-card)}
.split figure img{width:100%;height:360px;object-fit:cover}
.split figcaption{font-size:13px;color:var(--muted);padding:12px 20px;border-top:1px solid var(--hairline)}

.prose{max-width:760px;margin:0 auto}
.prose .meta{font-size:13px;color:var(--muted);margin-bottom:24px}
.prose h1{font-size:48px;line-height:1.1;margin-bottom:16px}
.prose h2{font-size:30px;margin:40px 0 14px}
.prose h3{font-size:22px;margin:28px 0 10px}
.prose p{font-size:16px;line-height:1.7;color:var(--body)}
.prose ul,.prose ol{margin:0 0 16px 22px;color:var(--body);line-height:1.7}
.prose li{margin-bottom:8px}
.prose figure{margin:28px 0;border:1px solid var(--hairline);border-radius:12px;overflow:hidden;background:var(--surface-card)}
.prose figure img{width:100%;height:380px;object-fit:cover}
.prose figcaption{font-size:13px;color:var(--muted);padding:12px 20px;border-top:1px solid var(--hairline)}
.prose a{color:var(--primary);text-decoration:underline}

.callout{background:var(--canvas-soft);border:1px solid var(--hairline);border-radius:12px;padding:24px;margin:28px 0}
.callout .kicker{font-size:11px;font-weight:600;letter-spacing:0.088em;text-transform:uppercase;color:var(--muted);margin-bottom:8px}

.spec-table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px}
.spec-table th,.spec-table td{text-align:left;padding:12px 16px;border-bottom:1px solid var(--hairline)}
.spec-table th{color:var(--ink);font-weight:600;background:var(--surface-card)}
.spec-table td{color:var(--body)}

.steps{list-style:none;counter-reset:s;margin:24px 0;padding:0}
.steps li{counter-increment:s;position:relative;padding:0 0 18px 44px;color:var(--body);line-height:1.6}
.steps li::before{content:counter(s);position:absolute;left:0;top:0;width:28px;height:28px;border-radius:9999px;background:var(--surface-strong);color:var(--ink);font-size:13px;font-weight:600;display:flex;align-items:center;justify-content:center}

.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.form-field{margin-bottom:16px}
.form-field label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:6px}
.form-field input,.form-field textarea{width:100%;background:var(--surface-card);border:1px solid var(--hairline-strong);border-radius:8px;padding:12px 16px;font-size:16px;color:var(--ink);font-family:inherit}
.form-field input{height:44px}
.form-field input:focus,.form-field textarea:focus{outline:none;border-color:var(--ink)}
.form-note{font-size:13px;color:var(--muted);margin-top:8px}
.form-status{margin-top:16px;font-size:15px;font-weight:500;display:none}
.form-status.ok{display:block;color:var(--success)}
.contact-info p{font-size:16px;color:var(--body)}
.contact-info .label{font-size:11px;font-weight:600;letter-spacing:0.088em;text-transform:uppercase;color:var(--muted);margin-bottom:4px}

.site-footer{background:var(--canvas);border-top:1px solid var(--hairline);padding:64px 0 48px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px}
.footer-grid h4{font-size:11px;font-weight:600;letter-spacing:0.088em;text-transform:uppercase;color:var(--muted);margin-bottom:16px}
.footer-grid ul{list-style:none}
.footer-grid li{margin-bottom:10px}
.footer-grid a{font-size:14px;color:var(--body)}
.footer-grid a:hover{color:var(--primary)}
.footer-about p{font-size:14px;color:var(--body);max-width:42ch}
.footer-bottom{margin-top:48px;padding-top:24px;border-top:1px solid var(--hairline);display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:13px;color:var(--muted)}
.disclaimer{font-size:13px;color:var(--muted);max-width:80ch;margin-top:16px}

.cookie-banner{position:fixed;left:24px;right:24px;bottom:24px;z-index:50;background:var(--surface-card);border:1px solid var(--hairline-strong);border-radius:12px;padding:20px 24px;display:none;gap:20px;align-items:center;justify-content:space-between;flex-wrap:wrap;max-width:1152px;margin:0 auto}
.cookie-banner.show{display:flex}
.cookie-banner p{font-size:14px;color:var(--body);margin:0;max-width:62ch}
.cookie-actions{display:flex;gap:12px}

@media(max-width:1024px){
  .hero h1{font-size:56px}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  .nav-menu{display:none;position:absolute;left:0;right:0;top:64px;flex-direction:column;background:var(--canvas);border-bottom:1px solid var(--hairline);padding:16px 24px;gap:14px;z-index:40}
  .nav-menu.open{display:flex}
  .nav-toggle{display:inline-block}
  .nav{position:relative}
  .hero{padding:48px 0 32px}
  .hero h1{font-size:32px}
  .hero-img img{height:280px}
  .grid-3,.grid-2{grid-template-columns:1fr}
  .split,.contact-grid{grid-template-columns:1fr;gap:32px}
  .split figure img{height:260px}
  .prose h1{font-size:32px}
  .footer-grid{grid-template-columns:1fr}
}