:root{
  --blue:#2563EB; --blue-700:#1D4ED8; --blue-ink:#1D4ED8; --blue-soft:#EFF4FF; --blue-line:#BFD3FB;
  --green:#10B981; --green-ink:#047857; --green-soft:#ECFDF5; --green-line:#A7E9CE;
  --ink:#0F172A; --ink-2:#475569; --muted:#64748B;
  --bg:#F8FAFC; --surface:#FFFFFF; --surface-2:#F1F5F9;
  --line:#E2E8F0; --line-2:#CBD5E1;
  --shadow-sm:0 1px 2px rgba(15,23,42,.06);
  --shadow:0 1px 3px rgba(15,23,42,.06), 0 10px 28px -14px rgba(15,23,42,.18);

  /* fixed navy surface — identical in both themes */
  --nv:#0F172A; --nv-2:#0B1120; --nv-3:#060B14;
  --nv-ink:#F1F5F9; --nv-ink-2:#B4C2D6; --nv-muted:#8697AF;
  --nv-line:rgba(148,163,184,.20); --nv-fill:rgba(148,163,184,.09);

  --font:"Inter","Segoe UI",system-ui,-apple-system,sans-serif;
  --brandface:"Poppins","Century Gothic","Avenir Next",system-ui,sans-serif;
  --mono:ui-monospace,"SF Mono",SFMono-Regular,Menlo,Consolas,monospace;
  --maxw:1180px;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --ink:#E9EFFA; --ink-2:#BFCBDD; --muted:#8A9BB5;
    --bg:#090E18; --surface:#0F1726; --surface-2:#0C1220;
    --line:#1E2B41; --line-2:#2C3C57;
    --blue-ink:#7FA6F7; --blue-soft:#131F38; --blue-line:#2B4372;
    --green-ink:#34D399; --green-soft:#0C2320; --green-line:#17503F;
    --shadow-sm:0 1px 2px rgba(0,0,0,.5);
    --shadow:0 1px 3px rgba(0,0,0,.5), 0 14px 34px -16px rgba(0,0,0,.7);
  }
}
:root[data-theme="dark"]{
  --ink:#E9EFFA; --ink-2:#BFCBDD; --muted:#8A9BB5;
  --bg:#090E18; --surface:#0F1726; --surface-2:#0C1220;
  --line:#1E2B41; --line-2:#2C3C57;
  --blue-ink:#7FA6F7; --blue-soft:#131F38; --blue-line:#2B4372;
  --green-ink:#34D399; --green-soft:#0C2320; --green-line:#17503F;
  --shadow-sm:0 1px 2px rgba(0,0,0,.5);
  --shadow:0 1px 3px rgba(0,0,0,.5), 0 14px 34px -16px rgba(0,0,0,.7);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:16px;line-height:1.62;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img,svg{max-width:100%}
a{color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.14;letter-spacing:-.022em;text-wrap:balance;font-weight:700}
p{margin:0}
ul{margin:0}
:where(a,button,input,select,textarea,summary):focus-visible{outline:2px solid var(--blue);outline-offset:2px;border-radius:6px}

.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding-inline:24px}
.eyebrow{display:block;font-size:12px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--blue-ink)}
.eyebrow.g{color:var(--green-ink)}
.lede{color:var(--ink-2);font-size:17px}
.sec{padding-block:88px}
.sec.tight{padding-top:0}
.sec-head{max-width:64ch;margin-bottom:44px}
.sec-head h2{font-size:clamp(27px,3.3vw,36px);margin-top:12px}
.sec-head p{margin-top:14px;color:var(--ink-2);font-size:17px;max-width:62ch}
.note{font-size:14px;color:var(--muted);max-width:74ch}
.navy{background:var(--nv);color:var(--nv-ink);position:relative;overflow:hidden}
.navy h2,.navy h3{color:#fff}
.navy .eyebrow{color:#7FA6F7}
.navy .eyebrow.g{color:#34D399}
.navy p{color:var(--nv-ink-2)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;white-space:nowrap;font-size:15px;font-weight:600;padding:11px 20px;border-radius:8px;border:1px solid transparent;text-decoration:none;cursor:pointer;font-family:var(--font);transition:background .15s,border-color .15s,color .15s,transform .12s}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:var(--blue-700);transform:translateY(-1px)}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--line-2)}
.btn-outline:hover{border-color:var(--ink);background:var(--surface-2)}
.navy .btn-outline{color:var(--nv-ink);border-color:rgba(148,163,184,.4)}
.navy .btn-outline:hover{border-color:#fff;background:rgba(148,163,184,.12)}
.btn-quiet{background:transparent;color:var(--ink-2);padding:9px 12px}
.btn-quiet:hover{color:var(--ink)}
.btn-row{display:flex;flex-wrap:wrap;gap:12px}
.btn-sm{padding:9px 16px;font-size:14px}

/* logo */
.logo{display:inline-flex;align-items:center;gap:10px;text-decoration:none}
.wordmark{font-family:var(--brandface);font-size:20px;font-weight:700;letter-spacing:-.025em;white-space:nowrap;color:var(--ink)}
.mark{display:block;flex:none;overflow:visible}
.wordmark .api{color:var(--blue)}
.navy .wordmark,footer.navy .wordmark{color:#fff}

/* header */
.hdr{position:sticky;top:env(safe-area-inset-top,0px);z-index:60;background:var(--surface);border-bottom:1px solid var(--line)}
.hdr-in{display:flex;align-items:center;gap:20px;height:68px}
.nav{display:flex;align-items:center;gap:0;margin-left:10px;flex:0 1 auto;min-width:0}
.nav>a,.menu-btn{font-size:14.5px;font-weight:500;color:var(--ink-2);text-decoration:none;padding:8px 10px;border-radius:7px;background:none;border:0;font-family:var(--font);cursor:pointer;display:inline-flex;align-items:center;gap:5px;white-space:nowrap}
.nav>a:hover,.menu-btn:hover{color:var(--ink);background:var(--surface-2)}
.nav>a[aria-current="page"]{color:var(--blue-ink);font-weight:600}
.menu{position:relative}
.menu-pop{position:absolute;top:calc(100% + 8px);left:0;min-width:170px;background:var(--surface);border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow);padding:6px;display:none;flex-direction:column}
.menu-pop a{font-size:14.5px;color:var(--ink-2);text-decoration:none;padding:9px 11px;border-radius:6px}
.menu-pop a:hover{background:var(--surface-2);color:var(--ink)}
.menu[data-open="true"] .menu-pop{display:flex}
.hdr-cta{display:flex;align-items:center;gap:6px;margin-left:auto;flex:none}
.burger{display:none;margin-left:auto;background:none;border:1px solid var(--line);border-radius:8px;padding:8px 10px;cursor:pointer;color:var(--ink)}

/* cards & grids */
.grid{display:grid;gap:20px}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.card{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:24px}
.card h3{font-size:17px;font-weight:600}
.card p{margin-top:9px;color:var(--ink-2);font-size:15px}
.card .ico{color:var(--blue);margin-bottom:14px;display:block}
.navy .card{background:var(--nv-fill);border-color:var(--nv-line)}
.navy .card p{color:var(--nv-ink-2)}
.soon{display:inline-block;font-size:11px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);background:var(--surface-2);border:1px solid var(--line);border-radius:5px;padding:2px 7px;margin-left:8px;vertical-align:middle}
.soon.plan{color:var(--blue-ink);background:var(--blue-soft);border-color:var(--blue-line)}

/* plain list rows */
.rows{display:flex;flex-direction:column}
.row{display:grid;grid-template-columns:auto 1fr;gap:16px;padding:22px 0;border-top:1px solid var(--line)}
.rows .row:last-child{border-bottom:1px solid var(--line)}
.row .idx{font-family:var(--mono);font-size:12px;color:var(--blue);padding-top:4px;font-variant-numeric:tabular-nums}
.row h3{font-size:17px;font-weight:600}
.row p{margin-top:7px;color:var(--ink-2);font-size:15px;max-width:58ch}
.navy .row{border-color:var(--nv-line)}
.navy .row p{color:var(--nv-ink-2)}

/* chips */
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:500;color:var(--ink-2);background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:8px 15px 8px 12px}
.chip svg{color:var(--blue);flex:none}
.navy .chip{background:var(--nv-fill);border-color:var(--nv-line);color:var(--nv-ink-2)}

/* code */
.codecard{background:var(--nv-3);border:1px solid var(--nv-line);border-radius:12px;overflow:hidden;min-width:0}
.codebar{display:flex;align-items:center;gap:4px;padding:8px 10px;border-bottom:1px solid var(--nv-line)}
.codebar .name{font-family:var(--mono);font-size:12px;color:var(--nv-muted);padding:6px 8px}
.tab{font-size:13px;font-weight:500;color:var(--nv-muted);background:none;border:0;padding:7px 12px;border-radius:6px;cursor:pointer;font-family:var(--font)}
.tab:hover{color:var(--nv-ink)}
.tab[aria-selected="true"]{color:#fff;background:rgba(148,163,184,.14)}
pre.code{margin:0;padding:18px 20px;font-family:var(--mono);font-size:13px;line-height:1.72;color:#C8D3E4;overflow-x:auto}
.code .k{color:#7FA6F7}.code .s{color:#34D399}.code .f{color:#F1F5F9}.code .c{color:#64748B}.code .p{color:#E3A7F9}
.hl{display:block;margin-inline:-20px;padding-inline:20px;transition:background .4s}
.hl.on{background:rgba(37,99,235,.20)}
.status{margin-left:auto;display:inline-flex;align-items:center;gap:7px;font-family:var(--mono);font-size:11.5px;color:var(--nv-muted);padding:6px 10px;border:1px solid var(--nv-line);border-radius:999px;transition:color .3s,border-color .3s}
.status .d{width:6px;height:6px;border-radius:50%;background:#475569;transition:background .3s,box-shadow .3s}
.status.ok{color:#34D399;border-color:rgba(16,185,129,.4)}
.status.ok .d{background:var(--green);box-shadow:0 0 0 3px rgba(16,185,129,.22)}

/* endpoints */
.eps{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:var(--surface)}
.ep{display:grid;grid-template-columns:230px 1fr;gap:18px;align-items:baseline;padding:18px 22px;border-bottom:1px solid var(--line)}
.eps .ep:last-child{border-bottom:0}
.ep code{font-family:var(--mono);font-size:13px;color:var(--ink);white-space:nowrap}
.ep .verb{display:inline-block;font-family:var(--mono);font-size:11px;font-weight:600;padding:2px 7px;border-radius:5px;margin-right:9px;background:var(--blue-soft);color:var(--blue-ink)}
.ep .verb.post{background:var(--green-soft);color:var(--green-ink)}
.ep p{color:var(--ink-2);font-size:15px}
.ep h3{font-size:15px;font-weight:600;margin-bottom:6px}

/* diagram shared */
.dgm{width:100%;height:auto;display:block}
.dgm .lbl{font-family:var(--font);font-size:11px;font-weight:500}
.dgm .lbl-lg{font-family:var(--font);font-size:14px;font-weight:700;letter-spacing:-.01em}
.flow-line{fill:none;stroke-linecap:round}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
  .spark{display:none}
}

/* footer */
footer{background:var(--surface-2);border-top:1px solid var(--line);padding-block:56px 36px}
.fgrid{display:grid;grid-template-columns:minmax(0,1.5fr) repeat(3,minmax(0,1fr));gap:36px}
.fcol h4{font-size:12px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:14px}
.fcol ul{list-style:none;padding:0;display:flex;flex-direction:column;gap:10px;font-size:14.5px}
.fcol a{color:var(--ink-2);text-decoration:none}
.fcol a:hover{color:var(--blue-ink)}
.fbrand p{margin-top:14px;color:var(--muted);font-size:14.5px;max-width:34ch}
.legal{margin-top:40px;padding-top:20px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:6px;font-size:13.5px;color:var(--muted)}
.legal b{font-weight:600;color:var(--ink-2)}

/* forms */
.form{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:6px;min-width:0}
.field.full{grid-column:1/-1}
.field label{font-size:13.5px;font-weight:600;color:var(--ink-2)}
.field input,.field select,.field textarea{font-family:var(--font);font-size:15px;color:var(--ink);background:var(--surface);border:1px solid var(--line-2);border-radius:8px;padding:10px 12px;width:100%}
.field input::placeholder,.field textarea::placeholder{color:var(--muted)}
.field textarea{min-height:110px;resize:vertical}
.field .hint{font-size:12.5px;color:var(--muted)}
.check{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--ink-2);grid-column:1/-1}
.check input{width:16px;height:16px;margin-top:3px;flex:none}

/* legal doc pages */
.doc{max-width:74ch}
.doc h3{font-size:19px;margin-top:38px}
.doc h4{font-size:15.5px;font-weight:600;margin-top:24px}
.doc p{margin-top:12px;color:var(--ink-2);font-size:15.5px}
.doc ul{margin-top:12px;padding-left:20px;color:var(--ink-2);font-size:15.5px;display:flex;flex-direction:column;gap:6px}
.callout{display:flex;gap:12px;background:var(--blue-soft);border:1px solid var(--blue-line);border-radius:10px;padding:16px 18px;font-size:14.5px;color:var(--ink-2)}
.callout svg{color:var(--blue-ink);flex:none;margin-top:2px}
.callout b{color:var(--ink)}

.page{display:none}
.page[data-active="true"]{display:block}
.phero{padding-block:72px 56px;border-bottom:1px solid var(--line)}
.phero h1{font-size:clamp(32px,4.4vw,46px)}
.phero p{margin-top:18px;font-size:18px;color:var(--ink-2);max-width:60ch}
.phero .btn-row{margin-top:28px}

@media (max-width:1160px){
  .nav{display:none}
  .burger{display:inline-flex}
  .hdr-cta{display:none}
  .hdr[data-open="true"] .nav{display:flex;position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;gap:2px;background:var(--surface);border-bottom:1px solid var(--line);padding:12px 20px 18px;margin:0;box-shadow:var(--shadow)}
  .hdr[data-open="true"] .menu-pop{position:static;display:flex;box-shadow:none;border:0;padding:0 0 0 12px}
  .hdr[data-open="true"] .hdr-cta{display:flex;position:absolute;top:100%;left:0;right:0;padding:0 20px 18px;background:var(--surface);margin-top:0;transform:translateY(0);z-index:1}
  .hdr[data-open="true"] .nav{padding-bottom:64px}
}
@media (max-width:900px){
  .g3{grid-template-columns:1fr 1fr}
  .ep{grid-template-columns:1fr;gap:8px}
  .fgrid{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  .sec{padding-block:60px}
  .g2,.g3{grid-template-columns:1fr}
  .form{grid-template-columns:1fr}
  .fgrid{grid-template-columns:1fr}
  .wrap{padding-inline:18px}
}

/* ---- hero ---- */
.hero{padding-block:76px 84px}
.hero-in{display:grid;grid-template-columns:minmax(0,1.04fr) minmax(0,1fr);gap:56px;align-items:center}
.hero h1{font-size:clamp(34px,4.9vw,52px);font-weight:800;color:#fff;letter-spacing:-.03em}
.hero .h1-sub{margin-top:18px;font-size:clamp(17px,2vw,20px);font-weight:500;color:#DCE6F5;max-width:30ch;line-height:1.4}
.hero .body{margin-top:20px;font-size:16.5px;color:var(--nv-ink-2);max-width:54ch}
.hero .btn-row{margin-top:30px}
.hero .byline{margin-top:20px;font-size:13.5px;color:var(--nv-muted)}
.hero::before{content:"";position:absolute;inset:0;background:radial-gradient(880px 520px at 84% 6%,rgba(37,99,235,.30),transparent 62%),radial-gradient(620px 420px at 4% 100%,rgba(16,185,129,.10),transparent 66%);pointer-events:none}
.hero .wrap{position:relative}
.dgm .node-box{fill:rgba(148,163,184,.08);stroke:rgba(148,163,184,.22);stroke-width:1;transition:fill .5s,stroke .5s}
.dgm .node-lbl{fill:#AFBFD4;font-size:11px;font-weight:500;transition:fill .5s}
.dgm .cap{fill:#7E8FA7;font-size:9.5px;font-weight:600;letter-spacing:1.3px}
.dgm g.lit .node-box{fill:rgba(37,99,235,.22);stroke:#3B82F6}
.dgm g.lit .node-lbl{fill:#fff}
.dgm g.lit-g .node-box{fill:rgba(16,185,129,.18);stroke:#10B981}
.dgm g.lit-g .node-lbl{fill:#fff}
.dgm>use{fill:none;stroke:rgba(148,163,184,.26);stroke-width:1.3;transition:stroke .4s,stroke-width .4s}
.dgm>use.lit{stroke:#3B82F6;stroke-width:2}
.dgm>use.lit-g{stroke:#10B981;stroke-width:2}
.dgm .hub{fill:rgba(37,99,235,.16);stroke:rgba(96,150,255,.55);stroke-width:1.4}
.dgm .hub-lbl{fill:#fff;font-family:var(--brandface);font-size:13px;font-weight:700;letter-spacing:-.025em}
#chk{opacity:0;transition:opacity .35s}
#chk.on{opacity:1}

/* ---- fragmentation ---- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.cpanel{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:22px}
.cpanel.good{border-color:var(--blue-line);box-shadow:var(--shadow)}
.cpanel h3{font-size:12px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:16px}
.cpanel.good h3{color:var(--blue-ink)}
.cpanel .facts{display:flex;flex-wrap:wrap;gap:6px 14px;margin-top:16px;font-size:13.5px;color:var(--muted)}
.cpanel.good .facts{color:var(--ink-2)}
.cpanel .facts span{display:inline-flex;align-items:center;gap:6px}
.cd .box{fill:var(--surface-2);stroke:var(--line-2);stroke-width:1}
.cd .box-t{fill:var(--ink-2);font-size:11px;font-weight:500}
.cd .dev{fill:var(--surface-2);stroke:var(--line-2)}
.cd .mess{fill:none;stroke:var(--muted);stroke-width:1.2;opacity:.6}
.cd .one{fill:none;stroke:var(--blue);stroke-width:2.4;stroke-linecap:round}
.cd .fan{fill:none;stroke:var(--blue);stroke-width:1.4;opacity:.85;stroke-dasharray:var(--len,200);stroke-dashoffset:0}
.cd .hubbox{fill:var(--blue);stroke:none}
.cd .hubtext{fill:#fff;font-family:var(--brandface);font-size:11px;font-weight:700;letter-spacing:-.02em}
.cd.run .fan{animation:draw .7s ease-out both}
@keyframes draw{from{stroke-dashoffset:var(--len,200)}to{stroke-dashoffset:0}}

/* ---- how it works rail ---- */
.rail{position:relative;margin-top:8px}
.rail-track{position:absolute;top:19px;left:12.5%;right:12.5%;height:2px;background:var(--line);border-radius:2px;overflow:hidden}
.rail-fill{position:absolute;inset:0;width:100%;transform-origin:left;background:linear-gradient(90deg,var(--blue) 0 72%,#10B981 80% 100%)}
.rail.run .rail-fill{animation:sweep 1.5s cubic-bezier(.4,0,.2,1) both}
@keyframes sweep{from{transform:scaleX(0)}to{transform:scaleX(1)}}
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;position:relative}
.step{text-align:center;padding-inline:8px}
.step .dot{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;margin:0 auto 18px;font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;background:var(--surface);border:2px solid var(--blue);color:var(--blue-ink);position:relative;z-index:1}
.step:last-child .dot{border-color:var(--green);color:var(--green-ink)}
.step h3{font-size:17px;font-weight:600}
.step p{margin-top:8px;color:var(--ink-2);font-size:15px}
.step .num{display:block;font-size:11px;font-weight:600;letter-spacing:.1em;color:var(--muted);margin-bottom:6px}

/* ---- dev request/response ---- */
.reqres{display:grid;grid-template-columns:minmax(0,1fr) 56px minmax(0,1fr);align-items:center;gap:0}
.wire{position:relative;height:2px;background:var(--nv-line);margin-inline:8px}
.wire .pulse{position:absolute;top:-3px;left:0;width:8px;height:8px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 4px rgba(37,99,235,.25);transform:translateX(0);opacity:0}
.wire.fire .pulse{animation:travel 1.1s ease-in-out both}
@keyframes travel{0%{opacity:0;transform:translateX(0)}15%{opacity:1}85%{opacity:1}100%{opacity:0;transform:translateX(40px)}}
.resp{transition:border-color .45s,box-shadow .45s}
.resp.flash{border-color:rgba(16,185,129,.5);box-shadow:0 0 0 3px rgba(16,185,129,.12)}

/* ---- agent flow ---- */
.agentgrid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:28px;align-items:start}
.chat{background:var(--nv-2);border:1px solid var(--nv-line);border-radius:12px;padding:18px;display:flex;flex-direction:column;gap:12px}
.chat .who{font-size:11px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--nv-muted)}
.bubble{border-radius:10px;padding:12px 14px;font-size:14.5px;line-height:1.5;max-width:92%}
.bubble.user{background:rgba(148,163,184,.12);color:var(--nv-ink);align-self:flex-start}
.bubble.bot{background:rgba(37,99,235,.14);border:1px solid rgba(96,150,255,.28);color:var(--nv-ink);align-self:flex-end}
.offerline{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--nv-ink-2);padding:9px 12px;border:1px solid var(--nv-line);border-radius:8px;background:rgba(148,163,184,.06);transition:border-color .4s,background .4s}
.offerline.pick{border-color:rgba(16,185,129,.5);background:rgba(16,185,129,.10);color:#fff}
.offerline .tk{margin-left:auto;font-family:var(--mono);font-size:11px;color:var(--nv-muted)}
.xchg{display:grid;gap:14px}
.xbox{border:1px solid var(--nv-line);border-radius:10px;padding:16px 18px;background:rgba(148,163,184,.05);transition:border-color .4s,background .4s}
.xbox.act{border-color:rgba(96,150,255,.45);background:rgba(37,99,235,.10)}
.xbox .who{font-size:11px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--nv-muted);margin-bottom:10px;display:block}
.xbox ul{list-style:none;padding:0;display:flex;flex-wrap:wrap;gap:8px}
.xbox li{font-family:var(--mono);font-size:12px;color:var(--nv-ink-2);border:1px solid var(--nv-line);border-radius:6px;padding:4px 9px}
.arrowdown{display:grid;place-items:center;color:var(--nv-muted)}

/* ---- workflow chain ---- */
.chain{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.chain .lnk{display:inline-flex;align-items:center;gap:9px;font-size:14px;font-weight:500;color:var(--ink-2);background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:10px 14px;transition:border-color .35s,color .35s,background .35s}
.chain .lnk .n{font-family:var(--mono);font-size:11px;color:var(--muted)}
.chain .lnk.on{border-color:var(--blue-line);background:var(--blue-soft);color:var(--ink)}
.chain .lnk.on .n{color:var(--blue-ink)}
.chain .lnk.end.on{border-color:var(--green-line);background:var(--green-soft)}
.chain .lnk.end.on .n{color:var(--green-ink)}
.chain .sep{color:var(--line-2);flex:none}

@media (max-width:980px){
  .hero-in{grid-template-columns:1fr;gap:44px}
  .agentgrid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr 1fr;gap:32px 20px}
  .rail-track{display:none}
}
@media (max-width:860px){
  .compare{grid-template-columns:1fr}
  .reqres{grid-template-columns:1fr;gap:16px}
  .wire{height:auto;width:2px;height:28px;margin:0 auto}
  .wire .pulse{top:0;left:-3px}
  .wire.fire .pulse{animation:travelv 1.1s ease-in-out both}
  @keyframes travelv{0%{opacity:0;transform:translateY(0)}15%{opacity:1}85%{opacity:1}100%{opacity:0;transform:translateY(20px)}}
}
@media (max-width:640px){.steps{grid-template-columns:1fr;gap:28px}}
/* skip link */
.skip{position:absolute;left:-9999px;top:0;z-index:100;background:var(--blue);color:#fff;padding:12px 18px;border-radius:0 0 8px 0;font-weight:600;font-size:14px;text-decoration:none}
.skip:focus{left:0}

/* FAQ */
.faq{display:flex;flex-direction:column;border-top:1px solid var(--line);max-width:82ch}
.qa{border-bottom:1px solid var(--line)}
.qa summary{cursor:pointer;padding:20px 0;list-style:none;display:flex;align-items:flex-start;gap:16px}
.qa summary::-webkit-details-marker{display:none}
.qa summary::after{content:"";margin-left:auto;flex:none;width:9px;height:9px;margin-top:7px;border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);transform:rotate(-135deg);transition:transform .2s}
.qa:not([open]) summary::after{transform:rotate(45deg)}
.qa summary h3{font-size:17.5px;font-weight:600;display:inline;letter-spacing:-.015em}
.qa summary:hover h3{color:var(--blue-ink)}
.qa-a{padding:0 0 22px;max-width:72ch}
.qa-a p{color:var(--ink-2);font-size:15.5px}
a.chip{text-decoration:none;transition:border-color .15s,color .15s}
a.chip:hover{border-color:var(--blue-line);color:var(--blue-ink)}

/* honeypot: off-screen for bots, invisible and unreachable for people */
.hp{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden}
.form-status{font-size:14px;margin-top:10px}
.form-status.ok{color:var(--green-ink);font-weight:600}
.form-status.err{color:#B91C1C;font-weight:600}
:root:not([data-theme="light"]) .form-status.err{color:#FCA5A5}
:root[data-theme="dark"] .form-status.err{color:#FCA5A5}

/* blog */
.post-list{display:flex;flex-direction:column;border-top:1px solid var(--line);max-width:82ch}
.post-card{padding:28px 0;border-bottom:1px solid var(--line)}
.post-card h2{font-size:23px;font-weight:600;margin-top:10px;letter-spacing:-.02em}
.post-card h2 a{text-decoration:none}
.post-card h2 a:hover{color:var(--blue-ink)}
.post-card p{margin-top:10px;color:var(--ink-2);font-size:16px;max-width:68ch}
.post-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.tag{font-size:11.5px;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--blue-ink);background:var(--blue-soft);border:1px solid var(--blue-line);border-radius:5px;padding:3px 9px}
.prose{max-width:70ch}
.prose .lede{font-size:19px;line-height:1.55;color:var(--ink);font-weight:500;margin-bottom:10px}
.prose h2{font-size:24px;font-weight:600;margin-top:40px;letter-spacing:-.02em}
.prose h3{font-size:18px;font-weight:600;margin-top:28px}
.prose p{margin-top:14px;color:var(--ink-2);font-size:16.5px;line-height:1.72}
.prose ul{margin-top:14px;padding-left:22px;display:flex;flex-direction:column;gap:9px;color:var(--ink-2);font-size:16.5px;line-height:1.66}
.prose b{color:var(--ink)}
.post-foot{margin-top:48px;padding-top:26px;border-top:1px solid var(--line);max-width:70ch}