*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--ground);color:var(--ink);font-family:var(--sans);
  line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}
h1,h2,h3{margin:0;letter-spacing:-.022em;line-height:1.12}
p{margin:0}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:2px solid var(--brand-text);outline-offset:3px}
section{padding:clamp(46px,5.5vw,74px) 0;scroll-margin-top:72px}
.rule{border:0;border-top:1px solid var(--line);margin:0}


header.nav{position:sticky;top:0;z-index:50;background:var(--ground);border-bottom:1px solid transparent}
header.nav.scrolled{border-bottom-color:var(--line)}
.nav-in{display:flex;align-items:center;gap:20px;height:66px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:-.02em;font-size:16.5px}
.brand .lk{width:26px;height:26px;flex:none}
.nav-links{margin-left:auto;display:flex;gap:4px;align-items:center}
.nav-links a{padding:8px 11px;border-radius:7px;font-size:14.5px;color:var(--ink-2)}
.nav-links a:hover{color:var(--ink)}
.nav-links a[aria-current="page"]{color:var(--ink);font-weight:650}
.nav-cta{background:var(--brand);color:var(--on-brand)!important;font-weight:650}
.nav-cta:hover{background:var(--brand-hover)}
.icon-btn{width:34px;height:34px;border-radius:7px;border:1px solid var(--line);background:transparent;
  display:grid;place-items:center;cursor:pointer;color:var(--muted);margin-left:6px}
.icon-btn:hover{color:var(--ink)}
.icon-btn svg{width:16px;height:16px}
@media(max-width:760px){.nav-links a.navlink{display:none}}
@media(max-width:360px){.nav-cta{display:none}}


.btn{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:650;
  padding:12px 20px;border-radius:var(--r-sm);cursor:pointer;border:1px solid transparent;font-family:inherit}
.btn-primary{background:var(--brand);color:var(--on-brand)}
.btn-primary:hover{background:var(--brand-hover)}
.btn-ghost{border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--muted)}





.page-head{padding-top:clamp(40px,5vw,64px)}
.crumbs{font-size:13px;color:var(--muted);display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--ink)}
.crumbs [aria-current="page"]{color:var(--ink-2)}
.crumbs-sep{opacity:.45}
.page-head .kicker{font-size:13px;font-weight:600;color:var(--brand-text);margin-top:14px}
.page-head h1{font-size:clamp(28px,4.4vw,42px);font-weight:750;margin-top:10px;max-width:19ch}
.page-head .lede{color:var(--ink-2);font-size:clamp(16px,1.7vw,18px);margin-top:16px;max-width:62ch}
.prose{max-width:66ch}
.prose h2{font-size:clamp(21px,2.6vw,26px);font-weight:700;margin-top:clamp(34px,4vw,48px)}
.prose h3{font-size:17.5px;font-weight:680;margin-top:26px}
.prose p{margin-top:14px;color:var(--ink-2)}
.prose p.lead{color:var(--ink)}
.prose ul{margin:14px 0 0;padding-left:0;list-style:none}
.prose ul li{position:relative;padding-left:20px;margin-top:9px;color:var(--ink-2)}
.prose ul li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;
  border-radius:2px;background:var(--brand)}
.prose a:not(.btn){color:var(--brand-text);font-weight:600;text-decoration:underline;
  text-underline-offset:2px}
.prose strong{color:var(--ink);font-weight:650}


.note{margin-top:22px;background:var(--panel-2);border:1px solid var(--line-2);
  border-radius:var(--r);padding:16px 18px}
.note p{margin-top:0;font-size:14.5px}
.note p + p{margin-top:10px}


.qa{border-top:1px solid var(--line);padding:22px 0}
.qa:first-of-type{border-top:0}
.qa h3{font-size:17.5px;font-weight:680;margin:0}
.qa p{margin-top:10px;color:var(--ink-2)}


.next{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:12px;margin-top:30px}
.next a{display:block;border:1px solid var(--line);border-radius:var(--r);padding:15px 17px;
  background:var(--panel)}
.next a:hover{border-color:var(--muted)}


.next .t{display:block;font-weight:650;font-size:15px}
.next .d{display:block;color:var(--muted);font-size:13.5px;margin-top:4px;line-height:1.45}

.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}

footer{border-top:1px solid var(--line);padding:30px 0;margin-top:clamp(40px,5vw,64px)}
.foot{display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  color:var(--muted);font-size:13.5px}
.foot-nav{display:flex;flex-wrap:wrap;gap:14px}
.foot-link{color:var(--brand-text);font-weight:600}
.foot-link:hover{text-decoration:underline}
.foot-note{flex-basis:100%;color:var(--faint);font-size:12.5px;line-height:1.5}
@media(max-width:440px){.wrap{padding:0 18px}}