:root{
  --ink:#2C2C2B;--muted:#7D7A75;--bg:#FFFFFF;--soft:#F9F8F7;--surface:#F0EFED;
  --line:#E6E5E3;--accent:#2783DE;--accent-soft:#E5F2FC;
  --max:1120px;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;
  --shadow:0 1px 2px rgba(0,0,0,.05),0 4px 12px rgba(0,0,0,.04);
}
@media (prefers-color-scheme:dark){
  :root{
    --ink:#FFFFFF;--muted:rgba(255,255,255,.65);--bg:#191919;--soft:#202020;--surface:#383836;
    --line:rgba(255,255,255,.20);--accent:#5E9FE8;--accent-soft:rgba(94,159,232,.12);
    --shadow:0 1px 2px rgba(0,0,0,.4),0 4px 14px rgba(0,0,0,.3);
  }
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 var(--sans);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
svg{display:block}
a{color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
.wrap{width:min(var(--max),calc(100% - 48px));margin-inline:auto}
@media (max-width:640px){.wrap{width:min(var(--max),calc(100% - 32px))}}
.skip{position:absolute;left:-9999px;top:0}
.skip:focus{left:12px;top:12px;z-index:50;background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:10px 14px;text-decoration:none}

/* header */
.site-header{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:saturate(140%) blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;font-weight:650;letter-spacing:-.01em;font-size:16.5px}
.brand svg{width:26px;height:26px;flex:none}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{color:var(--muted);text-decoration:none;font-size:15px;display:inline-flex;align-items:center;min-height:44px}
.nav-links a:hover{color:var(--ink)}
.nav-cta{display:inline-flex}
@media (max-width:860px){
  .nav{flex-wrap:wrap;padding:10px 0;min-height:0;row-gap:2px}
  .nav-links{order:3;width:100%;border-top:1px solid var(--line);gap:20px;overflow-x:auto;font-size:14.5px}
  .nav-links a{min-height:40px}
}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 20px;border-radius:8px;border:1px solid transparent;font:600 15px/1 var(--sans);text-decoration:none;transition:background .15s ease,border-color .15s ease,color .15s ease}
.btn-primary{background:var(--ink);color:var(--bg)}
.btn-primary:hover{background:color-mix(in srgb,var(--ink) 85%,var(--accent))}
.btn-ghost{border-color:var(--line);color:var(--ink);background:var(--bg)}
.btn-ghost:hover{background:var(--soft)}
.btn-sm{min-height:38px;padding:0 14px;font-size:14px}

/* hero */
.hero{display:grid;grid-template-columns:minmax(0,1.02fr) minmax(0,.98fr);gap:64px;align-items:center;padding:84px 0 72px}
@media (max-width:940px){.hero{grid-template-columns:1fr;gap:40px;padding:52px 0 48px}}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--muted);background:var(--soft);border:1px solid var(--line);border-radius:999px;padding:6px 13px}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:block}
.hero h1{margin:24px 0 0;font-size:clamp(34px,4.6vw,56px);line-height:1.06;letter-spacing:-.035em;max-width:17ch}
.lead{margin:20px 0 0;font-size:clamp(17px,1.4vw,19px);line-height:1.55;color:var(--muted);max-width:54ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.hero-meta{display:flex;flex-wrap:wrap;gap:8px 14px;margin-top:30px;padding-top:22px;border-top:1px solid var(--line);color:var(--muted);font-size:14px}
.hero-meta span+span::before{content:"·";margin-right:14px;color:var(--line)}
.hero-art{border:1px solid var(--line);border-radius:12px;background:linear-gradient(180deg,var(--bg),var(--soft));box-shadow:var(--shadow);overflow:hidden}
.hero-art svg{width:100%;height:auto}

/* sections */
.section{padding:80px 0;border-top:1px solid var(--line)}
.section--soft{background:var(--soft)}
@media (max-width:640px){.section{padding:56px 0}}
.section-head{max-width:660px;margin-bottom:44px}
.kicker{margin:0 0 14px;font-size:12.5px;font-weight:700;letter-spacing:.10em;text-transform:uppercase;color:var(--accent)}
.section-head h2{margin:0;font-size:clamp(27px,3.2vw,38px);line-height:1.14;letter-spacing:-.03em}
.section-head p{margin:14px 0 0;color:var(--muted)}

/* cards */
.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
@media (max-width:940px){.cards{grid-template-columns:1fr}}
.card{background:var(--bg);border:1px solid var(--line);border-radius:12px;padding:28px;transition:border-color .15s ease}
.card:hover{border-color:color-mix(in srgb,var(--accent) 45%,var(--line))}
.card-icon{width:40px;height:40px;border-radius:10px;background:var(--accent-soft);color:var(--accent);display:flex;align-items:center;justify-content:center}
.card-icon svg{width:20px;height:20px}
.card h3{margin:20px 0 10px;font-size:19px;letter-spacing:-.015em}
.card p{margin:0;color:var(--muted);font-size:15.5px}
.card ul{margin:16px 0 0;padding-left:18px;color:var(--muted);font-size:14.5px}
.card li{margin:6px 0}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
@media (max-width:940px){.steps{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}}
@media (max-width:560px){.steps{grid-template-columns:1fr}}
.step{padding-top:20px;border-top:2px solid var(--line)}
.step:first-child{border-top-color:var(--accent)}
.step b{display:block;font-size:12.5px;letter-spacing:.08em;color:var(--muted);font-weight:700}
.step h3{margin:12px 0 8px;font-size:17.5px;letter-spacing:-.01em}
.step p{margin:0;color:var(--muted);font-size:15px}

/* stats */
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
@media (max-width:720px){.stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}}
.stat .v{font-size:clamp(28px,3.4vw,40px);line-height:1.05;letter-spacing:-.035em;font-weight:650}
.stat .l{margin-top:8px;color:var(--muted);font-size:14.5px}

/* cta */
.cta{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;padding:36px;border:1px solid var(--line);border-radius:12px;background:var(--bg);box-shadow:var(--shadow)}
.cta h2{margin:0;font-size:clamp(24px,2.6vw,30px);letter-spacing:-.03em;line-height:1.2}
.cta p{margin:10px 0 0;color:var(--muted);max-width:46ch}
@media (max-width:640px){.cta{padding:26px}}

/* prose */
.prose{padding:64px 0 72px}
.prose>*{max-width:720px}
.prose h1{margin:0;font-size:clamp(30px,3.6vw,42px);letter-spacing:-.035em;line-height:1.12}
.prose .sub{margin:16px 0 0;color:var(--muted);font-size:17.5px}
.prose h2{margin:44px 0 12px;font-size:20px;letter-spacing:-.02em}
.prose p,.prose li{color:var(--muted)}
.prose ul{padding-left:20px}
.prose li{margin:8px 0}
.prose a{color:var(--accent);text-underline-offset:3px}
.divider{height:1px;background:var(--line);border:0;margin:40px 0}
.meta-row{display:flex;flex-wrap:wrap;gap:10px 28px;margin-top:28px;padding-top:24px;border-top:1px solid var(--line);color:var(--muted);font-size:14.5px}

/* footer */
.site-footer{border-top:1px solid var(--line);padding:40px 0;color:var(--muted);font-size:14.5px;background:var(--bg)}
.foot{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:18px}
.foot-links{display:flex;flex-wrap:wrap;gap:22px}
.foot-links a{text-decoration:none}
.foot-links a:hover{color:var(--ink);text-decoration:underline;text-underline-offset:3px}

/* error page */
.error{display:flex;flex-direction:column;justify-content:center;min-height:62vh;padding:64px 0}
.error .code{font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--accent)}
.error h1{margin:16px 0 0;font-size:clamp(30px,4vw,46px);letter-spacing:-.035em;line-height:1.1}
.error p{margin:16px 0 0;color:var(--muted);max-width:48ch}
.error .btn{margin-top:32px;align-self:flex-start}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{transition:none!important;animation:none!important}
}