:root{
  --bg:#E9EDEF;
  --raised:#F7F9FA;
  --ink:#15232C;
  --ink-2:#44535C;
  --rule:#C3CCD1;
  --yard:#F3C316;
  --yard-ink:#15232C;
  --link:#1E4E79;
  --line:#15232C;
  --focus:#1E4E79;
  --measure:68ch;
  --wrap:1180px;
  --gut:clamp(16px,4vw,40px);
  --step--1:clamp(.84rem,.82rem + .1vw,.9rem);
  --step-0:clamp(1rem,.97rem + .15vw,1.08rem);
  --step-1:clamp(1.2rem,1.1rem + .4vw,1.4rem);
  --step-2:clamp(1.5rem,1.3rem + .9vw,2rem);
  --step-3:clamp(2rem,1.6rem + 1.8vw,3.1rem);
  --step-4:clamp(2.5rem,1.8rem + 3.2vw,4.4rem);
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#121B21;--raised:#19252D;--ink:#E6ECEF;--ink-2:#A9B6BD;--rule:#2E3D46;
    --yard:#F3C316;--yard-ink:#15232C;--link:#8EC2F0;--line:#E6ECEF;--focus:#8EC2F0;
  }
}
:root[data-theme="dark"]{
  --bg:#121B21;--raised:#19252D;--ink:#E6ECEF;--ink-2:#A9B6BD;--rule:#2E3D46;
  --yard:#F3C316;--yard-ink:#15232C;--link:#8EC2F0;--line:#E6ECEF;--focus:#8EC2F0;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"Archivo",system-ui,sans-serif;font-size:var(--step-0);line-height:1.55;font-variation-settings:"wdth" 100}
img,svg{max-width:100%;display:block}
a{color:var(--link);text-underline-offset:.18em}
a:hover{text-decoration-thickness:2px}
:focus-visible{outline:3px solid var(--focus);outline-offset:3px;border-radius:2px}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--gut)}
.skip{position:absolute;left:-999px;top:0;background:var(--yard);color:var(--yard-ink);padding:.6rem 1rem;z-index:20}
.skip:focus{left:var(--gut)}

/* type */
h1,h2,h3{font-weight:700;line-height:1.08;margin:0 0 .5em;letter-spacing:-.01em;font-variation-settings:"wdth" 118}
h1{font-size:var(--step-4);max-width:16ch}
h2{font-size:var(--step-3);max-width:20ch}
h3{font-size:var(--step-1);font-variation-settings:"wdth" 108;letter-spacing:0;line-height:1.2}
p,li{max-width:var(--measure)}
p{margin:0 0 1em}
.lede{font-size:var(--step-1);color:var(--ink-2);line-height:1.45;max-width:58ch}
.note{font-size:var(--step--1);color:var(--ink-2)}
.ca{display:inline-block;font-size:var(--step--1);font-weight:600;color:var(--ink);background:var(--raised);border:1px solid var(--rule);border-radius:3px;padding:.05em .5em;margin-left:.4em;vertical-align:.12em;white-space:nowrap}

/* header */
.site-head{border-bottom:1px solid var(--rule);background:var(--bg);position:sticky;top:0;z-index:10}
.head-row{display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:64px}
.brand{display:flex;align-items:center;gap:.6rem;color:var(--ink);text-decoration:none;font-weight:700;font-size:1.12rem;font-variation-settings:"wdth" 125;letter-spacing:-.01em}
.brand svg{width:30px;height:30px;flex:none}
.nav{display:flex;align-items:center;gap:.25rem}
.nav>a,.nav summary{color:var(--ink);text-decoration:none;padding:.5rem .7rem;border-radius:3px;cursor:pointer;font-weight:500}
.nav>a:hover,.nav summary:hover{background:var(--raised)}
.nav details{position:relative}
.nav summary{list-style:none}
.nav summary::-webkit-details-marker{display:none}
.nav summary::after{content:"";display:inline-block;width:.42em;height:.42em;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg) translateY(-.2em);margin-left:.45em}
.nav details[open] summary{background:var(--raised)}
.nav .menu{position:absolute;top:calc(100% + 6px);left:0;min-width:15rem;background:var(--raised);border:1px solid var(--rule);border-radius:4px;padding:.4rem;display:grid}
.nav .menu a{color:var(--ink);text-decoration:none;padding:.5rem .7rem;border-radius:3px}
.nav .menu a:hover{background:var(--bg)}
.nav a[aria-current="page"]{text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:.35em}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;background:var(--yard);color:var(--yard-ink);font-weight:700;text-decoration:none;padding:.75rem 1.15rem;border-radius:3px;border:2px solid var(--yard);font-variation-settings:"wdth" 108;line-height:1.1;font-size:1rem;cursor:pointer;font-family:inherit}
.btn:hover{filter:brightness(.95);text-decoration:none}
.btn.ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.nav .btn{margin-left:.5rem;padding:.55rem .9rem}
.menu-toggle{display:none}

@media (max-width:900px){
  .nav{display:none}
  .menu-toggle{display:block}
  .menu-toggle summary{list-style:none;cursor:pointer;padding:.5rem .75rem;border:1px solid var(--rule);border-radius:3px;font-weight:600}
  .menu-toggle summary::-webkit-details-marker{display:none}
  .menu-toggle[open] .mobile-nav{display:grid}
  .mobile-nav{display:none;position:absolute;left:0;right:0;top:64px;background:var(--raised);border-bottom:1px solid var(--rule);padding:.75rem var(--gut) 1.25rem;gap:.15rem}
  .mobile-nav a{color:var(--ink);text-decoration:none;padding:.55rem 0;border-bottom:1px solid var(--rule)}
  .mobile-nav .group{color:var(--ink-2);font-size:var(--step--1);margin-top:.75rem}
  .mobile-nav .btn{margin-top:1rem;border-bottom:2px solid var(--yard)}
}

/* sections */
main{display:block}
.band{padding:clamp(3rem,7vw,6rem) 0}
.band+.band{border-top:1px solid var(--rule)}
.band.raised{background:var(--raised)}
.page-head{padding:clamp(2.75rem,6vw,5rem) 0 clamp(1.5rem,3vw,2.5rem)}
.page-head .crumb{font-size:var(--step--1);color:var(--ink-2);margin-bottom:1rem}
.page-head .crumb a{color:var(--ink-2)}
.actions{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:1.75rem}

/* hero */
.hero{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:clamp(2rem,5vw,4rem);align-items:center;padding:clamp(2.5rem,6vw,5rem) var(--gut) clamp(3rem,6vw,5rem)}
.hero h1{max-width:13ch}
@media (max-width:900px){.hero{grid-template-columns:1fr}}
.sld{width:100%;max-width:520px;justify-self:end;color:var(--line)}
@media (max-width:900px){.sld{justify-self:start;max-width:460px}}
.sld .wire{fill:none;stroke:currentColor;stroke-width:2.2;stroke-linecap:square}
.sld .bus{stroke-width:6}
.sld .energized{stroke:var(--yard);stroke-width:5;fill:none;stroke-linecap:square}
.sld .sym{fill:var(--bg);stroke:currentColor;stroke-width:2.2}
.sld text{fill:currentColor;font-family:"Archivo",sans-serif;font-size:15px;font-weight:600}
.sld .sub{font-weight:400;fill:var(--ink-2);font-size:13px}
.sld a:hover text,.sld a:focus text{text-decoration:underline}
.sld a:focus{outline:none}
.sld a:focus-visible text{text-decoration:underline;text-decoration-thickness:2px}
@media (prefers-reduced-motion:no-preference){
  .sld .energized{stroke-dasharray:var(--len);stroke-dashoffset:var(--len);animation:energize 2.4s cubic-bezier(.55,.1,.3,1) .35s forwards}
  @keyframes energize{to{stroke-dashoffset:0}}
}

/* proof strip */
.proof{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(1.5rem,3vw,3rem)}
.proof p{margin:0;color:var(--ink-2)}
.proof strong{display:block;color:var(--ink);font-size:var(--step-1);font-variation-settings:"wdth" 110;margin-bottom:.35rem}
@media (max-width:760px){.proof{grid-template-columns:1fr}}

/* layer list */
.layers{list-style:none;margin:2rem 0 0;padding:0;border-top:2px solid var(--ink)}
.layers li{max-width:none;border-bottom:1px solid var(--rule)}
.layers a{display:grid;grid-template-columns:56px minmax(0,15rem) minmax(0,1fr);gap:1.25rem;align-items:center;padding:1.1rem .25rem;color:var(--ink);text-decoration:none}
.layers a:hover{background:var(--raised)}
.layers a:hover h3{text-decoration:underline;text-underline-offset:.2em}
.layers h3{margin:0}
.layers p{margin:0;color:var(--ink-2)}
.layers svg{width:48px;height:48px;color:var(--ink)}
@media (max-width:700px){.layers a{grid-template-columns:44px minmax(0,1fr)}.layers p{grid-column:2}.layers svg{width:40px;height:40px}}

/* columns of text */
.cols{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(1.5rem,3vw,3rem);margin-top:2rem}
.cols.two{grid-template-columns:repeat(2,minmax(0,1fr))}
.cols h3{margin-bottom:.4rem}
.cols p{color:var(--ink-2)}
@media (max-width:820px){.cols,.cols.two{grid-template-columns:1fr}}

/* split: heading left, body right */
.split{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:clamp(1.5rem,5vw,5rem)}
@media (max-width:820px){.split{grid-template-columns:1fr}}

/* steps */
.steps{list-style:none;counter-reset:s;margin:2rem 0 0;padding:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;border-top:2px solid var(--ink)}
.steps li{counter-increment:s;padding:1.25rem 1.25rem 0 0;max-width:none;position:relative}
.steps li::before{content:counter(s);display:grid;place-items:center;width:2.1rem;height:2.1rem;border:2px solid var(--ink);border-radius:50%;font-weight:700;margin-bottom:.9rem;background:var(--bg)}
.band.raised .steps li::before{background:var(--raised)}
.steps h3{margin-bottom:.35rem}
.steps p{color:var(--ink-2);margin:0}
@media (max-width:860px){.steps{grid-template-columns:1fr 1fr;row-gap:1.5rem}}
@media (max-width:520px){.steps{grid-template-columns:1fr}}

/* product sections */
.items{display:grid;gap:0;margin-top:.5rem;border-top:2px solid var(--ink)}
.item{display:grid;grid-template-columns:minmax(0,.75fr) minmax(0,1.25fr);gap:clamp(1rem,4vw,4rem);padding:1.75rem 0;border-bottom:1px solid var(--rule)}
.item h2{font-size:var(--step-2);margin:0;max-width:18ch}
.item p:last-child,.item ul:last-child{margin-bottom:0}
.item ul{padding-left:1.1rem;margin:.5rem 0 0}
.item li{margin-bottom:.3rem}
@media (max-width:760px){.item{grid-template-columns:1fr}}
.plain{padding-left:1.1rem}
.plain li{margin-bottom:.45rem}

/* callout */
.callout{background:var(--raised);border-left:6px solid var(--yard);padding:1.5rem clamp(1.25rem,3vw,2rem);margin-top:2.5rem}
.callout h2{font-size:var(--step-2);margin-bottom:.4rem}
.callout p:last-child{margin-bottom:0}

/* CTA band */
.cta{padding:clamp(3rem,7vw,5.5rem) 0;background:var(--ink);color:var(--bg)}
.cta h2{color:var(--bg)}
.cta p{color:var(--bg);opacity:.85}
.cta .btn{margin-top:.75rem}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .cta{background:#0D1418}}

/* forms */
form{display:grid;gap:1.1rem;max-width:44rem}
.row{display:grid;grid-template-columns:1fr 1fr;gap:1.1rem}
@media (max-width:640px){.row{grid-template-columns:1fr}}
label{display:grid;gap:.35rem;font-weight:600}
label .hint{font-weight:400;color:var(--ink-2);font-size:var(--step--1)}
input,select,textarea{font:inherit;color:var(--ink);background:var(--raised);border:1px solid var(--ink-2);border-radius:3px;padding:.65rem .75rem;width:100%}
textarea{min-height:9rem;resize:vertical}
fieldset{border:0;padding:0;margin:0;display:grid;gap:.5rem}
legend{font-weight:600;margin-bottom:.35rem}
.radio{display:flex;gap:.55rem;align-items:center;font-weight:400}
.radio input{width:auto}
.form-status{font-weight:600}

/* footer */
.site-foot{border-top:1px solid var(--rule);padding:2.5rem 0 3rem;font-size:var(--step--1);color:var(--ink-2)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:2rem}
.site-foot h2{font-size:1rem;font-variation-settings:"wdth" 110;margin:0 0 .6rem;color:var(--ink)}
.site-foot ul{list-style:none;padding:0;margin:0;display:grid;gap:.35rem}
.site-foot a{color:var(--ink-2)}
.site-foot address{font-style:normal}
@media (max-width:760px){.foot-grid{grid-template-columns:1fr 1fr}}