: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;
  --t-thinking:#dfa88f;
  --t-grep:#9fc9a2;
  --t-read:#9fbbe0;
  --t-edit:#c0a8dd;
  --t-done:#c08532;
  --success:#1f8a65;
  --error:#cf2d56;
  --sans:"Inter",system-ui,"Helvetica Neue",Helvetica,Arial,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
}
*{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;
}
.container{max-width:1200px;margin:0 auto;padding:0 24px;}
a{color:var(--ink);text-decoration:none;}
a:hover{text-decoration:underline;}
img{max-width:100%;height:auto;display:block;}
h1,h2,h3,h4{color:var(--ink);font-weight:400;margin:0 0 16px;}
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;}

.topnav{background:var(--canvas);border-bottom:1px solid var(--hairline);position:sticky;top:0;z-index:50;}
.topnav-inner{height:64px;display:flex;align-items:center;justify-content:space-between;}
.brand{font-size:20px;color:var(--primary);font-weight:600;letter-spacing:-0.4px;}
.brand:hover{text-decoration:none;}
.nav-menu{display:flex;gap:28px;align-items:center;}
.nav-link{font-size:14px;font-weight:500;color:var(--ink);letter-spacing:0;}
.nav-link.is-active{color:var(--primary);}
.nav-toggle{display:none;flex-direction:column;gap:4px;background:none;border:0;cursor:pointer;padding:8px;}
.nav-toggle span{width:22px;height:2px;background:var(--ink);display:block;}

.section{padding:80px 0;}
.section-tight{padding:56px 0;}
.label{font-size:11px;font-weight:600;letter-spacing:0.88px;text-transform:uppercase;color:var(--muted);margin-bottom:12px;}

.hero{background:var(--canvas);padding:88px 0 64px;}
.hero-grid{display:grid;grid-template-columns:1.05fr 0.95fr;gap:48px;align-items:center;}
.hero p.lead{font-size:18px;color:var(--body);max-width:46ch;}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-top:24px;}
.hero-media{border-radius:12px;border:1px solid var(--hairline);overflow:hidden;background:var(--surface-card);}
.hero-media img{aspect-ratio:4/3;object-fit:cover;width:100%;}
.hero-media figcaption{font-size:13px;color:var(--muted);padding:10px 16px;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;height:40px;border:1px solid transparent;cursor:pointer;}
.btn:hover{text-decoration:none;}
.btn-primary{background:var(--primary);color:var(--on-primary);}
.btn-primary:active{background:var(--primary-active);}
.btn-secondary{background:var(--surface-card);color:var(--ink);border-color:var(--hairline-strong);}
.btn-dark{background:var(--ink);color:var(--canvas);height:44px;padding:12px 20px;}

.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:12px;padding:24px;}
.card h3{font-size:22px;}
.card .label{margin-bottom:8px;}
.card-media{padding:0;overflow:hidden;}
.card-media img{aspect-ratio:16/10;object-fit:cover;width:100%;}
.card-media .card-body{padding:24px;}
.card-link{font-size:14px;font-weight:500;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:9999px;padding:4px 10px;}

.timeline{display:flex;flex-wrap:wrap;gap:10px;margin:8px 0 0;padding:0;list-style:none;}
.pill{font-size:11px;font-weight:600;letter-spacing:0.88px;text-transform:uppercase;border-radius:9999px;padding:4px 10px;color:var(--ink);}
.pill-thinking{background:var(--t-thinking);}
.pill-grep{background:var(--t-grep);}
.pill-read{background:var(--t-read);}
.pill-edit{background:var(--t-edit);}
.pill-done{background:var(--t-done);color:var(--on-primary);}

.codeblock{background:var(--surface-card);border:1px solid var(--hairline);border-radius:12px;padding:20px;font-family:var(--mono);font-size:13px;line-height:1.5;color:var(--ink);white-space:pre-wrap;overflow-x:auto;}

.article-head{padding:72px 0 32px;}
.article-head h1{font-size:48px;letter-spacing:-1.2px;}
.article-meta{font-size:13px;color:var(--muted);}
.article-body{max-width:760px;}
.article-body h2{font-size:30px;margin-top:40px;}
.article-body h3{font-size:22px;margin-top:28px;}
.article-body ul,.article-body ol{padding-left:22px;margin:0 0 16px;}
.article-body li{margin-bottom:8px;}
.figure{margin:28px 0;border:1px solid var(--hairline);border-radius:12px;overflow:hidden;background:var(--surface-card);}
.figure img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.figure figcaption{font-size:13px;color:var(--muted);padding:10px 16px;border-top:1px solid var(--hairline);}
.callout{background:var(--canvas-soft);border:1px solid var(--hairline);border-left:3px solid var(--primary);border-radius:8px;padding:18px 20px;margin:24px 0;}
.callout .label{margin-bottom:6px;}
.related{border-top:1px solid var(--hairline);margin-top:48px;padding-top:32px;}

.form-band{background:var(--canvas-soft);border-top:1px solid var(--hairline);border-bottom:1px solid var(--hairline);}
.form-card{background:var(--surface-card);border:1px solid var(--hairline);border-radius:12px;padding:32px;max-width:560px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:6px;}
.field input{width:100%;background:var(--surface-card);border:1px solid var(--hairline-strong);border-radius:8px;height:44px;padding:12px 16px;font-family:var(--sans);font-size:15px;color:var(--ink);}
.field input:focus{outline:2px solid var(--primary);outline-offset:1px;border-color:var(--primary);}
.form-status{font-size:14px;margin-top:8px;}
.form-status.success{color:var(--success);}
.form-status.error{color:var(--error);}
.btn[disabled]{opacity:0.6;cursor:default;}

.footer{background:var(--canvas);border-top:1px solid var(--hairline);padding:64px 0 32px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr 1fr;gap:32px;}
.footer-brand-col .brand{display:block;margin-bottom:12px;}
.footer-note{font-size:14px;color:var(--body);max-width:32ch;}
.footer-updated{font-size:13px;color:var(--muted);}
.footer-head{font-size:13px;font-weight:600;letter-spacing:0.4px;color:var(--ink);text-transform:uppercase;margin-bottom:12px;}
.footer-link{display:block;font-size:14px;color:var(--body);margin-bottom:8px;}
.footer-bottom{border-top:1px solid var(--hairline);margin-top:40px;padding-top:24px;font-size:13px;color:var(--muted);}
.disclaimer{color:var(--muted-soft);}

.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:12px;padding:20px;z-index:80;display:none;}
.cookie.show{display:block;}
.cookie p{font-size:14px;color:var(--body);margin-bottom:14px;}
.cookie-actions{display:flex;gap:12px;}

@media (max-width:1024px){
  h1{font-size:56px;letter-spacing:-1.6px;}
  .footer-grid{grid-template-columns:repeat(3,1fr);}
  .hero-grid{grid-template-columns:1fr;}
}
@media (max-width:768px){
  .nav-toggle{display:flex;}
  .nav-menu{display:none;position:absolute;top:64px;left:0;right:0;background:var(--canvas);border-bottom:1px solid var(--hairline);flex-direction:column;gap:0;padding:8px 24px 16px;}
  .nav-menu.open{display:flex;}
  .nav-link{padding:10px 0;}
  .grid-3,.grid-2{grid-template-columns:1fr;}
}
@media (max-width:640px){
  h1{font-size:32px;letter-spacing:-0.8px;}
  .article-head h1{font-size:32px;}
  h2{font-size:28px;}
  .section{padding:56px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}