:root{
  --bg:#F4F3EF; --surface:#FBFAF7; --paper:#FFFFFF; --ink:#0B0D10; --t2:#4A4F57; --t3:#858B94; --line:rgba(11,13,16,.10); --line-2:rgba(11,13,16,.17);
  --black:#08090B; --panel:#101318; --panel-2:#151920; --hair:rgba(255,255,255,.08); --hair-2:rgba(255,255,255,.15);
  --d1:#ECEFF3; --d2:#A1A8B3; --d3:#6D7480;
  --green:#3DD68C; --green-ink:#1D7650; --green-soft:rgba(61,214,140,.14);
  --sans:Geist,-apple-system,"Helvetica Neue",Arial,sans-serif; --mono:"Geist Mono",ui-monospace,Menlo,monospace; --serif:"Instrument Serif",Georgia,serif;
  --ease:cubic-bezier(.2,.7,.2,1); --pad:clamp(16px,4vw,48px); --bar:72px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;background:var(--black);scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.65 var(--sans);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
a{color:inherit;text-decoration:none} button{font:inherit;color:inherit} svg{display:block;flex:none}
p{margin:0} h1,h2,h3,h4{margin:0;font-weight:500;letter-spacing:-.03em;line-height:1.08}
.wrap{max-width:1240px;margin:0 auto;padding:0 var(--pad)}
em.s{font-family:var(--serif);font-style:italic;font-weight:400;letter-spacing:-.01em}
.label{display:inline-block;font:500 11.5px var(--mono);letter-spacing:.09em;text-transform:uppercase;color:var(--t3)}
.dark{background:var(--black);color:var(--d1)} .dark .label{color:var(--d3)}
.btn{display:inline-flex;align-items:center;gap:10px;height:50px;padding:0 24px;border-radius:999px;font-weight:500;font-size:15.5px;white-space:nowrap;transition:box-shadow .25s,transform .25s var(--ease)}
.btn svg{transition:transform .25s var(--ease)} .btn:hover svg{transform:translateX(3px)}
.btn-light{background:#fff;color:var(--ink)} .btn-light:hover{box-shadow:0 0 0 5px rgba(255,255,255,.12)}
.btn-dark{background:var(--ink);color:#fff} .btn-dark:hover{box-shadow:0 0 0 5px rgba(11,13,16,.08)}
.btn-line{color:var(--d1);box-shadow:inset 0 0 0 1px var(--hair-2)} .btn-line:hover{background:rgba(255,255,255,.06)}
.btn-sm{height:38px;padding:0 17px;font-size:14px}

/* header pill (same as the homepage) */
.bar{position:fixed;inset:0 0 auto;z-index:50;color:#fff;pointer-events:none}
.bar-in{pointer-events:auto;width:100%;height:var(--bar);display:flex;align-items:center;justify-content:space-between;gap:24px;border:1px solid transparent;border-radius:999px;transition:max-width .55s var(--ease),width .55s var(--ease),height .55s var(--ease),margin .55s var(--ease),padding .55s var(--ease),background .4s,border-color .4s,box-shadow .4s}
.bar.solid .bar-in{width:calc(100% - 24px);max-width:1080px;height:58px;margin-top:12px;padding:0 9px 0 26px;background:rgba(12,14,18,.66);backdrop-filter:saturate(1.8) blur(22px);-webkit-backdrop-filter:saturate(1.8) blur(22px);border-color:var(--hair-2);box-shadow:0 20px 50px -22px rgba(0,0,0,.7)}
.brand{font-weight:600;font-size:17.5px;letter-spacing:-.025em;flex:none}
.brand .ai{color:var(--green);font-family:var(--serif);font-style:italic;font-weight:400;font-size:1.14em;letter-spacing:-.01em;margin-left:.03em;padding-right:.02em}
.bar-links{display:flex;align-items:center;gap:34px;font-size:14px;color:var(--d2)}
.bar-links a:not(.btn){transition:color .2s} .bar-links a:not(.btn):hover,.bar-links a.on{color:#fff}

/* page hero */
.phero{position:relative;overflow:hidden;padding:calc(var(--bar) + clamp(48px,7vw,96px)) 0 clamp(56px,7vw,96px)}
.phero::before{content:"";position:absolute;inset:0;background:radial-gradient(900px 420px at 18% -10%,rgba(61,214,140,.13),transparent 62%),radial-gradient(700px 480px at 92% 30%,rgba(120,140,255,.06),transparent 65%);pointer-events:none}
.grid-bg{position:absolute;inset:0;background-image:linear-gradient(var(--hair) 1px,transparent 1px),linear-gradient(90deg,var(--hair) 1px,transparent 1px);background-size:64px 64px;mask-image:radial-gradient(ellipse 80% 70% at 50% 20%,#000 30%,transparent 80%);-webkit-mask-image:radial-gradient(ellipse 80% 70% at 50% 20%,#000 30%,transparent 80%);opacity:.35;pointer-events:none}
.phero .wrap{position:relative}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font:500 11.5px var(--mono);letter-spacing:.09em;text-transform:uppercase;color:var(--d3);margin-bottom:28px}
.crumbs a{color:var(--d2);transition:color .2s} .crumbs a:hover{color:#fff}
.phero h1{margin-top:18px;max-width:980px;font-size:clamp(38px,5.6vw,76px);letter-spacing:-.05em;line-height:1;color:#fff;text-wrap:balance}
.phero h1 em{color:var(--green)}
.phero .lead{margin-top:26px;max-width:680px;font-size:clamp(18px,1.6vw,21px);line-height:1.55;color:var(--d2)}
.phero .ctas{margin-top:36px;display:flex;flex-wrap:wrap;gap:12px}
.ameta{margin-top:26px;display:flex;flex-wrap:wrap;gap:8px 22px;font:500 12px var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--d3)}

/* body + side card */
.pbody{padding:clamp(64px,8vw,112px) 0}
.pbody-in{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:clamp(36px,6vw,96px);align-items:start}
.prose{max-width:760px}
.prose section+section{margin-top:clamp(44px,5vw,64px)}
.prose h2{font-size:clamp(26px,2.8vw,36px);letter-spacing:-.035em;line-height:1.12;scroll-margin-top:110px;text-wrap:balance}
.prose p{margin-top:16px;color:var(--t2);font-size:17.5px;line-height:1.7}
.prose h2+p{margin-top:18px}
.prose p:first-of-type{color:#1F2329}
.prose a{color:var(--green-ink);box-shadow:inset 0 -1px 0 rgba(29,118,80,.35);transition:box-shadow .2s}
.prose a:hover{box-shadow:inset 0 -2px 0 var(--green-ink)}
.prose strong{font-weight:600;color:var(--ink)}
.ticks{list-style:none;margin:20px 0 0;padding:0;display:grid;gap:10px}
.ticks li{display:grid;grid-template-columns:22px minmax(0,1fr);gap:10px;color:var(--t2);font-size:17px;line-height:1.6}
.ticks li svg{color:var(--green-ink);margin-top:5px}
.steps{list-style:none;margin:24px 0 0;padding:0;border-top:1px solid var(--line)}
.steps li{display:grid;grid-template-columns:56px minmax(0,1fr);gap:4px 16px;padding:18px 0;border-bottom:1px solid var(--line)}
.steps .sn{font:500 13px var(--mono);color:var(--t3);padding-top:3px}
.steps b{display:block;font-weight:500;font-size:18px;letter-spacing:-.015em;color:var(--ink)}
.steps span.st{display:block;margin-top:4px;color:var(--t2);font-size:16.5px;line-height:1.6}
.side{position:sticky;top:100px;display:grid;gap:14px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:24px}
.card .k{display:block;font:500 11px var(--mono);letter-spacing:.09em;text-transform:uppercase;color:var(--t3);margin-bottom:12px}
.card ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.card li{display:grid;grid-template-columns:18px minmax(0,1fr);gap:10px;font-size:15px;line-height:1.5;color:var(--t2)}
.card li svg{color:var(--green-ink);margin-top:4px}
.card .btn{margin-top:20px;width:100%;justify-content:center}
.card .note{margin-top:12px;font-size:13px;color:var(--t3);text-align:center}
.toc a{display:block;padding:6px 0;font-size:14.5px;color:var(--t2);border-top:1px solid var(--line);transition:color .2s}
.toc a:first-of-type{border-top:0}
.toc a:hover{color:var(--ink)}

/* faq */
.pfaq{padding:clamp(64px,8vw,112px) 0;border-top:1px solid var(--line)}
.sec-head{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.8fr);gap:24px 60px;align-items:end;margin-bottom:clamp(32px,4vw,48px)}
.sec-head h2{margin-top:14px;font-size:clamp(30px,3.8vw,50px);letter-spacing:-.045em}
.sec-head p{color:var(--t2);font-size:17px}
.qs{border-top:1px solid var(--line-2)}
.q{border-bottom:1px solid var(--line)}
.q button{appearance:none;border:0;background:transparent;width:100%;text-align:left;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:24px;padding:24px 4px;font-size:clamp(17px,1.5vw,20px);font-weight:500;letter-spacing:-.015em;line-height:1.35}
.q .pm{flex:none;width:30px;height:30px;border-radius:50%;display:grid;place-items:center;border:1px solid var(--line-2);transition:transform .35s var(--ease),background .2s}
.q.open .pm{transform:rotate(45deg);background:var(--ink);color:#fff;border-color:var(--ink)}
.q .a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .4s var(--ease)}
.q.open .a{grid-template-rows:1fr}
.q .a>div{overflow:hidden}
.q .a p{padding:0 60px 26px 4px;color:var(--t2);font-size:17px;line-height:1.65;max-width:860px}

/* related */
.prel{padding:0 0 clamp(72px,9vw,128px)}
.rel-grid{margin-top:22px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.rel{display:flex;flex-direction:column;gap:10px;background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:24px;transition:border-color .2s,box-shadow .25s,transform .25s var(--ease)}
.rel:hover{border-color:var(--line-2);box-shadow:0 24px 50px -32px rgba(11,13,16,.4);transform:translateY(-2px)}
.rel .label{font-size:10.5px}
.rel b{font-weight:500;font-size:19px;letter-spacing:-.02em;line-height:1.25}
.rel span.d{color:var(--t2);font-size:15px;line-height:1.5}
.rel .go{margin-top:auto;padding-top:8px;display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--green-ink)}

/* insights index + sources */
.ilist{display:grid;gap:14px}
.irow{display:grid;grid-template-columns:150px minmax(0,1fr) auto;gap:20px 32px;align-items:start;padding:28px 4px;border-top:1px solid var(--line);transition:background .2s}
.irow:hover{background:rgba(11,13,16,.02)}
.irow .dt{font:500 12px var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--t3);padding-top:6px}
.irow b{display:block;font-weight:500;font-size:clamp(21px,2.2vw,28px);letter-spacing:-.03em;line-height:1.2}
.irow span.d{display:block;margin-top:8px;color:var(--t2);font-size:16px}
.irow .go{color:var(--green-ink);padding-top:8px}
.sources{margin-top:clamp(44px,5vw,64px);padding-top:28px;border-top:1px solid var(--line)}
.sources ol{margin:14px 0 0;padding-left:20px;display:grid;gap:8px;color:var(--t2);font-size:15px}
.sources a{color:var(--green-ink);word-break:break-word}

/* simple page (privacy, 404) */
.plain{max-width:780px}
.plain h2{margin-top:44px;font-size:24px;letter-spacing:-.025em}
.plain p,.plain li{margin-top:12px;color:var(--t2);font-size:17px;line-height:1.7}
.plain ul{padding-left:20px}
.plain a{color:var(--green-ink);box-shadow:inset 0 -1px 0 rgba(29,118,80,.35)}

/* footer (same as the homepage) */
footer.site{position:relative;overflow:hidden;padding-top:clamp(96px,12vw,160px)}
footer.site::before{content:"";position:absolute;inset:0;background:radial-gradient(900px 420px at 50% 0%,rgba(61,214,140,.12),transparent 65%);pointer-events:none}
.f-cta{position:relative;display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);gap:40px;align-items:end;padding-bottom:clamp(64px,8vw,110px);border-bottom:1px solid var(--hair)}
.f-cta h2{font-size:clamp(44px,6.4vw,96px);letter-spacing:-.05em;line-height:.98;color:#fff}
.f-cta h2 em{color:var(--green)}
.f-cta .side{justify-self:end;max-width:400px;position:static;display:block}
.f-cta .side p{color:var(--d2);font-size:17px;line-height:1.55;margin-bottom:26px}
.f-cta .mail{display:block;margin-top:18px;font-size:14.5px;color:var(--d3)} .f-cta .mail a{color:var(--d1);box-shadow:inset 0 -1px 0 var(--hair-2)}
.f-cols{position:relative;display:grid;grid-template-columns:minmax(0,1.3fr) repeat(4,minmax(0,1fr));gap:32px;padding:48px 0 40px;font-size:14.5px}
.f-cols h3{margin:0 0 16px;font:500 11.5px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--d3)}
.f-cols .brandcol h3{text-transform:none;letter-spacing:.02em}
.f-cols a,.f-cols span{display:block;color:var(--d2);padding:4px 0;transition:color .2s}
.f-cols a:hover{color:#fff}
.f-cols .tag{color:var(--d2);max-width:300px;line-height:1.55}
.f-legal{position:relative;display:flex;justify-content:space-between;gap:10px 24px;flex-wrap:wrap;padding:22px 0;border-top:1px solid var(--hair);font-size:13px;color:var(--d3)}
.wordmark{--wy:1;position:relative;padding:clamp(8px,1.5vw,20px) var(--pad) 0;overflow:hidden;text-align:center;line-height:0}
.wordmark>span{display:inline-block;white-space:nowrap;font-weight:600;letter-spacing:-.06em;line-height:.78;background:linear-gradient(180deg,rgba(255,255,255,.92) 8%,rgba(255,255,255,.42) 58%,rgba(255,255,255,.04) 100%);-webkit-background-clip:text;background-clip:text;color:transparent;transform:translateY(35%);opacity:0;transition:transform 1.6s var(--ease),opacity 1.6s var(--ease);margin-bottom:-.12em}
.wordmark.in>span{transform:translateY(12%);opacity:1}

.rv{opacity:0;transform:translateY(14px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.rv.in{opacity:1;transform:none}
.load{animation:vin .8s var(--ease) both} .load.d1{animation-delay:.1s} .load.d2{animation-delay:.2s}
@keyframes vin{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

@media (max-width:1100px){ .f-cta{grid-template-columns:minmax(0,1fr)} .f-cta .side{justify-self:start} .f-cols{grid-template-columns:repeat(3,minmax(0,1fr))} .f-cols .brandcol{grid-column:1/-1} }
@media (max-width:980px){
  .pbody-in{grid-template-columns:minmax(0,1fr)} .side{position:static} .toc{display:none}
  .rel-grid{grid-template-columns:minmax(0,1fr)}
  .sec-head{grid-template-columns:minmax(0,1fr);align-items:start}
}
@media (max-width:900px){ .bar-links a:not(.btn){display:none} }
@media (max-width:820px){ :root{--bar:64px} .bar.solid .bar-in{padding-left:20px} .irow{grid-template-columns:minmax(0,1fr)} .irow .go{display:none} }
@media (max-width:640px){
  .f-cols{grid-template-columns:1fr 1fr}
  .q .a p{padding-right:4px}
  .wordmark{padding-bottom:calc(22px + env(safe-area-inset-bottom))} .wordmark>span{margin-bottom:0} .wordmark.in>span{transform:none}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important;scroll-behavior:auto !important}
  .rv{opacity:1;transform:none} .wordmark>span{opacity:1;transform:none}
}
.page-meta{padding-top:20px;padding-bottom:28px;font-size:13px;color:#62646b}
.page-meta a{text-decoration:underline;text-underline-offset:3px}