:root{
  --ground:#EDEFEC;
  --paper:#F6F7F4;
  --ink:#11171C;
  --slate:#5C6B72;
  --rule:#C7CDC8;
  --signal:#E5A200;
  --signal-deep:#8A6200;
  --max:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
body{margin:0;background:var(--ground);color:var(--ink);
  font-family:"Source Serif 4",Georgia,serif;font-size:17px;line-height:1.62;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4,.disp{font-family:Archivo,"Helvetica Neue",Arial,sans-serif;font-weight:800;letter-spacing:-.028em;line-height:1.06;margin:0}
.mono{font-family:"IBM Plex Mono",ui-monospace,monospace;font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;font-weight:500}
a{color:inherit}
.wrap{max-width:var(--max);margin:0 auto;padding:0 28px}
.narrow{max-width:820px}
section{padding:82px 0;border-top:1px solid var(--rule)}
section.flush{border-top:none}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--signal-deep);outline-offset:3px}
.skip{position:absolute;left:-9999px}
.skip:focus{left:8px;top:8px;background:var(--ink);color:var(--paper);padding:10px 14px;z-index:99}

/* nav */
.nav{position:sticky;top:0;z-index:50;background:rgba(237,239,236,.93);backdrop-filter:blur(8px);border-bottom:1px solid var(--rule)}
.nav .wrap{display:flex;align-items:center;gap:26px;height:64px}
.brand{font-family:Archivo;font-weight:800;font-size:19px;letter-spacing:-.03em;text-decoration:none}
.brand span{color:var(--signal-deep)}
.navlinks{margin-left:auto;display:flex;gap:24px}
.navlinks a{color:var(--slate);text-decoration:none;font-family:Archivo;font-size:14px;font-weight:500}
.navlinks a:hover,.navlinks a.on{color:var(--ink)}
.btn{display:inline-block;background:var(--ink);color:var(--paper);text-decoration:none;
  font-family:Archivo;font-weight:600;font-size:14.5px;padding:11px 20px;border:1px solid var(--ink)}
.btn:hover{background:transparent;color:var(--ink)}
.btn-ghost{background:transparent;color:var(--ink);border:1px solid var(--rule)}
.btn-ghost:hover{background:var(--ink);color:var(--paper);border-color:var(--ink)}

/* hero */
.hero{padding:76px 0 62px}
.eyebrow{color:var(--signal-deep);margin-bottom:24px}
h1{font-size:clamp(36px,5.8vw,70px);max-width:17ch}
h1.small{font-size:clamp(32px,4.6vw,54px);max-width:20ch}
.lede{font-size:20px;max-width:54ch;margin:24px 0 32px;color:#2A343A}
.herocta{display:flex;gap:12px;flex-wrap:wrap}
.crumb{color:var(--slate);margin-bottom:20px}
.crumb a{text-decoration:none;color:var(--signal-deep)}

/* scale-up train */
.train{background:var(--paper);border-top:1px solid var(--rule);border-bottom:1px solid var(--rule);padding:54px 0 60px}
.trainhead{display:flex;justify-content:space-between;align-items:baseline;flex-wrap:wrap;gap:10px;margin-bottom:42px}
.trainhead .mono{color:var(--slate)}
.rail{position:relative;display:grid;grid-template-columns:repeat(5,1fr)}
.rail::before{content:"";position:absolute;top:9px;left:6%;right:6%;height:1.5px;background:var(--rule)}
.node{position:relative;padding:0 10px}
.dot{width:19px;height:19px;border-radius:50%;background:var(--ground);border:1.5px solid var(--slate);position:relative;z-index:2}
.node.on .dot{border-color:var(--signal-deep);background:var(--signal);box-shadow:0 0 0 4px rgba(229,162,0,.18)}
.tag{margin-top:18px;color:var(--slate)}
.node.on .tag{color:var(--signal-deep)}
.nname{font-family:Archivo;font-weight:600;font-size:16px;margin:5px 0 6px}
.ndesc{font-size:14.5px;line-height:1.5;color:var(--slate);max-width:19ch}
.bracket{margin-top:32px;position:relative;height:38px}
.bracket .bar{position:absolute;left:16%;right:6%;top:0;height:11px;border:1.5px solid var(--signal-deep);border-bottom:none}
.bracket .lbl{position:absolute;left:16%;top:17px;font-family:Archivo;font-weight:600;font-size:14px;color:var(--signal-deep)}

/* generic type */
.h2{font-size:clamp(27px,3.5vw,41px);max-width:21ch}
.sub{color:var(--slate);max-width:56ch;margin-top:16px;font-size:17.5px}
.prose p{max-width:64ch}
.prose h2{font-size:27px;margin:44px 0 14px;max-width:26ch}
.prose h3{font-size:20px;font-weight:600;margin:32px 0 10px}
.prose ul,.prose ol{max-width:62ch;padding-left:20px}
.prose li{margin-bottom:9px}
.prose table{border-collapse:collapse;width:100%;margin:26px 0;font-size:15.5px}
.prose th,.prose td{border:1px solid var(--rule);padding:10px 12px;text-align:left;vertical-align:top}
.prose th{background:var(--paper);font-family:Archivo;font-weight:600;font-size:14px}

/* stats */
.proof{display:grid;grid-template-columns:1.05fr 1fr;gap:54px;align-items:start}
.stat{border-left:2px solid var(--signal);padding-left:16px;margin-bottom:24px}
.statnum{font-family:Archivo;font-weight:800;font-size:33px;letter-spacing:-.03em;line-height:1}
.statlbl{font-size:15px;color:var(--slate);margin-top:3px}

/* card grid */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--rule);border:1px solid var(--rule);margin-top:46px}
.grid.two{grid-template-columns:repeat(2,1fr)}
.card{background:var(--paper);padding:30px 26px 32px;text-decoration:none;display:block}
a.card:hover{background:var(--ground)}
.card .mono{color:var(--signal-deep)}
.card h3{font-size:20px;margin:14px 0 10px;font-weight:600;letter-spacing:-.02em}
.card p{margin:0;font-size:15.5px;color:var(--slate);line-height:1.55}
.deliv{margin-top:16px;padding-top:14px;border-top:1px dotted var(--rule);font-size:13.5px;color:var(--ink)}
.deliv b{font-family:"IBM Plex Mono",monospace;font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--slate);display:block;margin-bottom:4px;font-weight:500}

/* two-column fit */
.fit{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--rule);border:1px solid var(--rule);margin-top:42px}
.fitcol{background:var(--paper);padding:32px 28px}
.fitcol:last-child{background:var(--ground)}
.fitcol h3{font-size:18px;margin-bottom:18px;font-weight:600}
.fitcol ul{margin:0;padding-left:19px}
.fitcol li{margin-bottom:11px;font-size:16px}
.fitcol:last-child li{color:var(--slate)}

/* founder */
.founder{display:grid;grid-template-columns:auto 1fr;gap:34px;align-items:start}
.avatar{width:104px;height:104px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-family:Archivo;font-weight:800;font-size:34px;color:var(--paper);background:var(--ink)}
.founder blockquote{margin:0;font-size:20px;line-height:1.55;max-width:60ch}
.byline{margin-top:22px;font-family:Archivo;font-weight:600;font-size:15px}
.byline em{display:block;font-family:"Source Serif 4",serif;font-weight:400;font-style:normal;color:var(--slate);font-size:15px;margin-top:3px}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--rule);border:1px solid var(--rule);margin-top:42px}
.step{background:var(--paper);padding:28px 24px}
.step .mono{color:var(--signal-deep);display:block;margin-bottom:12px}
.step h3{font-size:18px;font-weight:600;margin-bottom:9px}
.step p{margin:0;font-size:15px;color:var(--slate);line-height:1.55}

/* faq */
details{border-bottom:1px solid var(--rule);padding:20px 0}
details summary{cursor:pointer;font-family:Archivo;font-weight:600;font-size:18px;list-style:none;display:flex;gap:16px;align-items:baseline}
details summary::-webkit-details-marker{display:none}
details summary::before{content:"+";color:var(--signal-deep);font-weight:800}
details[open] summary::before{content:"\2013"}
details p{margin:12px 0 0 30px;color:var(--slate);max-width:62ch}

/* posts */
.postlist{border-top:1px solid var(--rule);margin-top:40px}
.post{display:grid;grid-template-columns:150px 1fr;gap:26px;padding:26px 0;border-bottom:1px solid var(--rule);text-decoration:none}
.post:hover h3{color:var(--signal-deep)}
.post .mono{color:var(--slate);padding-top:5px}
.post h3{font-size:22px;font-weight:600;letter-spacing:-.02em}
.post p{margin:8px 0 0;color:var(--slate);font-size:16px;max-width:60ch}

/* cta / footer */
.cta{background:var(--ink);color:var(--paper)}
.cta h2{color:var(--paper);font-size:clamp(29px,4.2vw,48px)}
.cta p{color:#9FAAB0;max-width:52ch;font-size:18px;margin:20px 0 30px}
.cta .btn{background:var(--signal);border-color:var(--signal);color:var(--ink)}
.cta .btn:hover{background:transparent;color:var(--signal)}
footer{background:var(--ink);color:#8B969C;font-size:14.5px;padding:0 0 52px}
footer .wrap{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:34px;border-top:1px solid #2A3439;padding-top:32px}
footer a{color:#8B969C;text-decoration:none;display:block;margin-bottom:8px}
footer a:hover{color:var(--paper)}
footer h4{color:var(--paper);font-size:13px;font-family:"IBM Plex Mono",monospace;letter-spacing:.12em;text-transform:uppercase;font-weight:500;margin-bottom:14px}

/* form */
.form{display:grid;gap:16px;max-width:560px;margin-top:32px}
.form label{font-family:Archivo;font-weight:600;font-size:14px;display:block;margin-bottom:6px}
.form input,.form textarea,.form select{width:100%;padding:11px 13px;border:1px solid var(--rule);background:var(--paper);
  font-family:"Source Serif 4",serif;font-size:16px;color:var(--ink);border-radius:0}
.form textarea{min-height:130px;resize:vertical}
.form input:focus,.form textarea:focus,.form select:focus{outline:2px solid var(--signal-deep);outline-offset:0}

.rv{opacity:0;transform:translateY(14px);transition:opacity .6s ease,transform .6s ease}
.rv.in{opacity:1;transform:none}

@media(max-width:900px){
  .grid,.grid.two,.proof,.fit,.founder,.steps,footer .wrap{grid-template-columns:1fr}
  .rail{grid-template-columns:1fr;gap:24px}
  .rail::before{display:none}
  .node{border-left:1.5px solid var(--rule);padding-left:18px}
  .node.on{border-left-color:var(--signal-deep)}
  .dot{display:none}
  .ndesc{max-width:none}
  .bracket{display:none}
  .navlinks{display:none}
  .post{grid-template-columns:1fr;gap:8px}
  section{padding:58px 0}
}