:root{
  --primary:#f54e00;
  --primary-active:#d04200;
  --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;
  --success:#1f8a65;
  --error:#cf2d56;
  --gold:#c08532;
  --mint:#9fc9a2;
  --peach:#dfa88f;
  --max:1200px;
  --sans:'Inter',system-ui,'Helvetica Neue',Helvetica,Arial,sans-serif;
  --mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--sans);
  background:var(--canvas);
  color:var(--body);
  font-size:16px;
  line-height:1.5;
  letter-spacing:-0.015em;
  -webkit-font-smoothing:antialiased;
}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
a{color:var(--ink);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;display:block}

h1,h2,h3{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}
p{margin:0 0 16px;color:var(--body)}
.lead{font-size:18px;color:var(--ink);letter-spacing:0.08px}

.section{padding:80px 0}
.section-tight{padding:48px 0}
.label{font-size:11px;font-weight:600;letter-spacing:0.88px;text-transform:uppercase;color:var(--muted);display:inline-block;margin-bottom:16px}

/* nav */
.top-nav{background:var(--canvas);border-bottom:1px solid var(--hairline);position:sticky;top:0;z-index:50}
.top-nav .wrap{display:flex;align-items:center;height:64px;gap:24px}
.brand{display:flex;align-items:center;gap:8px;font-size:18px;font-weight:600;color:var(--ink)}
.brand:hover{text-decoration:none}
.brand .dot{width:18px;height:18px;border-radius:4px;background:var(--primary);display:inline-block}
.nav-links{display:flex;gap:24px;margin-left:auto;align-items:center}
.nav-links a{font-size:14px;font-weight:500;color:var(--ink)}
.nav-toggle{display:none;margin-left:auto;background:none;border:1px solid var(--hairline-strong);border-radius:8px;padding:8px 10px;cursor:pointer;color:var(--ink);font-size:14px}

/* buttons */
.btn{display:inline-block;font-size:14px;font-weight:500;border-radius:8px;padding:10px 18px;cursor:pointer;border:1px solid transparent;line-height:1;text-align:center}
.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-ink{background:var(--ink);color:var(--canvas);padding:12px 20px}

/* hero */
.hero{background:var(--canvas);padding:88px 0 64px}
.hero h1{max-width:14ch}
.hero .lead{max-width:60ch;margin-top:20px}
.hero-figure{margin-top:48px;border:1px solid var(--hairline);border-radius:12px;overflow:hidden;background:var(--surface-card)}
.hero-figure img{width:100%;height:auto;object-fit:cover;max-height:460px}
.hero-figure figcaption{font-size:13px;color:var(--muted);padding:12px 16px;border-top:1px solid var(--hairline-soft)}

/* grid */
.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:22px;letter-spacing:-0.11px;margin-bottom:12px}
.card .title-md{font-size:18px;font-weight:600;color:var(--ink);margin-bottom:8px}
.card p{font-size:16px}

.feature-figure{border:1px solid var(--hairline);border-radius:12px;overflow:hidden;background:var(--surface-card)}
.feature-figure img{width:100%;height:240px;object-fit:cover}
.feature-figure figcaption{font-size:13px;color:var(--muted);padding:12px 16px;border-top:1px solid var(--hairline-soft)}

/* split */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.split img{border-radius:12px;border:1px solid var(--hairline)}

/* article body */
.article-hero{background:var(--canvas);padding:64px 0 32px}
.article-hero .meta{font-size:13px;color:var(--muted);margin-top:16px}
.prose{max-width:760px}
.prose h2{font-size:26px;letter-spacing:-0.325px;margin:40px 0 16px}
.prose h3{font-size:22px;letter-spacing:-0.11px;margin:28px 0 12px}
.prose p{font-size:16px;letter-spacing:0.08px}
.prose ul,.prose ol{margin:0 0 16px 22px;color:var(--body)}
.prose li{margin-bottom:8px}
.prose figure{margin:28px 0}
.prose figure img{border-radius:12px;border:1px solid var(--hairline);width:100%;max-height:420px;object-fit:cover}
.prose figcaption{font-size:13px;color:var(--muted);margin-top:8px}
.callout{background:var(--canvas-soft);border:1px solid var(--hairline);border-left:3px solid var(--gold);border-radius:8px;padding:20px;margin:24px 0}
.callout .title-sm{font-size:16px;font-weight:600;color:var(--ink);margin-bottom:8px}
.steps{list-style:none;margin:24px 0;padding:0;counter-reset:step}
.steps li{position:relative;padding:16px 16px 16px 56px;border:1px solid var(--hairline);border-radius:12px;background:var(--surface-card);margin-bottom:12px;counter-increment:step}
.steps li::before{content:counter(step);position:absolute;left:16px;top:16px;width:28px;height:28px;border-radius:9999px;background:var(--ink);color:var(--canvas);display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:600}
.steps strong{display:block;color:var(--ink);margin-bottom:4px}

.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}

.divider{height:1px;background:var(--hairline);border:0;margin:0}

/* article index cards */
.post-card{display:flex;flex-direction:column;background:var(--surface-card);border:1px solid var(--hairline);border-radius:12px;overflow:hidden}
.post-card img{width:100%;height:200px;object-fit:cover}
.post-card .body{padding:20px}
.post-card h3{font-size:22px;letter-spacing:-0.11px;margin-bottom:8px}
.post-card .meta{font-size:13px;color:var(--muted);margin-bottom:12px}
.post-card .read{font-size:14px;font-weight:500;color:var(--primary)}

/* references */
.refs{font-size:14px;color:var(--body)}
.refs li{margin-bottom:8px}

/* form */
.form-card{background:var(--surface-card);border:1px solid var(--hairline);border-radius:12px;padding:32px;max-width:560px}
.form-row{margin-bottom:16px}
.form-row label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:6px}
.form-row input{width:100%;background:var(--surface-card);border:1px solid var(--hairline-strong);border-radius:8px;padding:12px 16px;height:44px;font-family:var(--sans);font-size:16px;color:var(--ink)}
.form-row input:focus{outline:none;border-color:var(--ink)}
.form-row input.invalid{border-color:var(--error)}
.field-error{color:var(--error);font-size:13px;margin-top:6px;display:none}
.field-error.show{display:block}
.form-status{margin-top:16px;font-size:14px;display:none}
.form-status.show{display:block}
.form-status.ok{color:var(--success)}

/* footer */
.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:0.88px;text-transform:uppercase;color:var(--muted);margin-bottom:16px}
.footer-grid a,.footer-grid p{font-size:14px;color:var(--body);display:block;margin-bottom:8px}
.footer-bottom{margin-top:48px;padding-top:24px;border-top:1px solid var(--hairline-soft);font-size:14px;color:var(--muted);display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}
.disclaimer{font-size:13px;color:var(--muted-soft);margin-top:12px;max-width:70ch}

/* cookie banner */
.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:100;display:none}
.cookie.show{display:block}
.cookie p{font-size:14px;margin-bottom:16px}
.cookie .actions{display:flex;gap:12px}

@media (max-width:1024px){
  h1{font-size:56px;letter-spacing:-1.5px}
  .grid-3{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  h1{font-size:32px;letter-spacing:-1px}
  h2{font-size:28px;letter-spacing:-0.5px}
  .nav-links{display:none;position:absolute;top:64px;left:0;right:0;background:var(--canvas);border-bottom:1px solid var(--hairline);flex-direction:column;padding:16px 24px;gap:16px}
  .nav-links.open{display:flex}
  .nav-toggle{display:inline-block}
  .grid-3,.grid-2{grid-template-columns:1fr}
  .split{grid-template-columns:1fr;gap:24px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:480px){
  .footer-grid{grid-template-columns:1fr}
}