:root{
  --ink:#17201b;
  --muted:#607068;
  --paper:#fbfcfa;
  --white:#ffffff;
  --line:#dde5df;
  --soft:#f1f6f2;
  --brand:#234b35;
  --brand-2:#315f46;
  --accent:#dfeee3;
  --max:1120px;
  --article:760px;
  --radius:18px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  color:var(--ink);
  background:var(--paper);
  font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  line-height:1.67;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--brand);text-underline-offset:3px}
a:hover{color:var(--brand-2)}
.site-header{
  position:sticky;top:0;z-index:20;
  background:rgba(251,252,250,.95);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(10px);
}
.header-inner{
  max-width:var(--max);margin:auto;padding:15px 24px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
}
.wordmark{
  display:inline-flex;align-items:center;gap:10px;
  color:var(--ink);text-decoration:none;font-weight:800;letter-spacing:.12em;
  font-size:.92rem;
}
.wordmark-dot{width:11px;height:11px;border-radius:50%;background:var(--brand)}
.nav{display:flex;gap:24px;align-items:center;flex-wrap:wrap}
.nav a{color:var(--ink);text-decoration:none;font-size:.95rem}
.nav a[aria-current="page"]{font-weight:700;color:var(--brand)}
.nav .nav-buy{
  padding:9px 14px;border-radius:999px;background:var(--brand);color:white;
}
.hero{
  max-width:var(--max);margin:auto;padding:72px 24px 52px;
}
.eyebrow{
  margin:0 0 14px;color:var(--brand);font-size:.78rem;font-weight:800;
  letter-spacing:.13em;text-transform:uppercase;
}
h1,h2,h3{line-height:1.15;letter-spacing:-.025em}
h1{font-size:clamp(2.35rem,6vw,4.8rem);max-width:900px;margin:0 0 22px}
.hero p.lede{
  max-width:760px;color:var(--muted);font-size:1.18rem;margin:0;
}
.article-grid{
  max-width:var(--max);margin:0 auto;padding:8px 24px 84px;
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;
}
.card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px;min-height:230px;display:flex;flex-direction:column;
  box-shadow:0 6px 24px rgba(23,32,27,.035);
}
.card .kicker{font-size:.76rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--brand)}
.card h2{font-size:1.55rem;margin:10px 0 10px}
.card p{color:var(--muted);margin:0 0 22px}
.card a.more{margin-top:auto;font-weight:700;text-decoration:none}
.article-shell{
  max-width:var(--max);margin:auto;padding:44px 24px 84px;
  display:grid;grid-template-columns:minmax(0,var(--article)) 260px;gap:70px;align-items:start;
}
.article{
  background:var(--white);border:1px solid var(--line);border-radius:24px;
  padding:clamp(28px,5vw,58px);box-shadow:0 8px 30px rgba(23,32,27,.035);
}
.breadcrumbs{font-size:.88rem;color:var(--muted);margin:0 0 28px}
.breadcrumbs a{color:var(--muted)}
.article h1{font-size:clamp(2.25rem,5vw,4rem);margin-bottom:18px}
.article .dek{font-size:1.15rem;color:var(--muted);margin:0 0 34px}
.article h2{font-size:1.72rem;margin:46px 0 14px}
.article h3{font-size:1.2rem;margin:30px 0 8px}
.article p{margin:0 0 18px}
.article ul,.article ol{padding-left:1.25rem;margin:0 0 22px}
.article li{margin:8px 0}
.article table{width:100%;border-collapse:collapse;margin:22px 0 30px;font-size:.96rem}
.article th,.article td{padding:13px 14px;border:1px solid var(--line);vertical-align:top;text-align:left}
.article th{background:var(--soft)}
.callout{
  margin:30px 0;padding:22px 24px;background:var(--soft);border:1px solid var(--line);
  border-radius:16px;
}
.callout strong{display:block;margin-bottom:4px}
.product-cta{
  margin:42px 0 10px;padding:28px;border-radius:20px;background:var(--brand);color:white;
}
.product-cta h2{color:white;margin:0 0 10px;font-size:1.65rem}
.product-cta p{color:#e6efe9;margin-bottom:18px}
.product-cta .button{
  display:inline-block;padding:12px 18px;border-radius:999px;background:white;color:var(--brand);
  text-decoration:none;font-weight:800;margin-right:8px;margin-bottom:8px;
}
.product-cta .secondary{background:transparent;color:white;border:1px solid rgba(255,255,255,.45)}
.sources{
  border-top:1px solid var(--line);margin-top:46px;padding-top:24px;color:var(--muted);font-size:.92rem;
}
.sources h2{font-size:1.15rem;margin:0 0 10px;color:var(--ink)}
.sources ul{margin-bottom:0}
.side{
  position:sticky;top:92px;
}
.side-box{
  border:1px solid var(--line);background:var(--white);border-radius:16px;padding:20px;margin-bottom:16px;
}
.side-box h3{font-size:1rem;margin:0 0 10px}
.side-box a{display:block;margin:8px 0;text-decoration:none;font-size:.93rem}
.disclaimer{
  max-width:var(--max);margin:0 auto 50px;padding:0 24px;color:var(--muted);font-size:.84rem;
}
.site-footer{border-top:1px solid var(--line);background:white}
.footer-inner{
  max-width:var(--max);margin:auto;padding:38px 24px;
  display:flex;justify-content:space-between;gap:28px;flex-wrap:wrap;color:var(--muted);font-size:.9rem;
}
.footer-links{display:flex;gap:18px;flex-wrap:wrap}
.footer-links a{color:var(--muted);text-decoration:none}
.note{
  font-size:.92rem;color:var(--muted);
}
.faq-item{
  border-top:1px solid var(--line);padding:24px 0 5px;
}
.faq-item h2{font-size:1.25rem;margin:0 0 10px}
@media (max-width:900px){
  .article-shell{grid-template-columns:1fr;gap:28px}
  .side{position:static}
  .side-box.related{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:20px}
}
@media (max-width:700px){
  .header-inner{align-items:flex-start}
  .nav{gap:12px;justify-content:flex-end}
  .nav a:not(.nav-buy){font-size:.88rem}
  .article-grid{grid-template-columns:1fr}
  .hero{padding-top:54px}
  .article{border-radius:18px;padding:28px 22px}
  .side-box.related{grid-template-columns:1fr}
}