:root{
  --bg:#EEF1F5; --surface:#FFFFFF; --surface-2:#F6F8FA; --ink:#111418; --muted:#5B6470; --line:#D6DBE3;
  --blue:#2563EB; --blue-soft:#DBE6FD; --green:#15803D; --green-soft:#DCF2E3; --amber:#B45309; --amber-soft:#FDEBD0;
  --bar:#2563EB; --bar-2:#93B4F5;
  color-scheme: light;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#0F1216; --surface:#171B21; --surface-2:#1E232B; --ink:#E8ECF1; --muted:#98A2AE; --line:#2A3039;
    --blue:#60A5FA; --blue-soft:#1B2B4A; --green:#4ADE80; --green-soft:#12301E; --amber:#FBBF24; --amber-soft:#3A2A0C;
    --bar:#60A5FA; --bar-2:#2E4C80;
    color-scheme: dark;
  }
}
:root[data-theme="dark"]{
  --bg:#0F1216; --surface:#171B21; --surface-2:#1E232B; --ink:#E8ECF1; --muted:#98A2AE; --line:#2A3039;
  --blue:#60A5FA; --blue-soft:#1B2B4A; --green:#4ADE80; --green-soft:#12301E; --amber:#FBBF24; --amber-soft:#3A2A0C;
  --bar:#60A5FA; --bar-2:#2E4C80;
  color-scheme: dark;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.55 "Hanken Grotesk",system-ui,sans-serif;-webkit-font-smoothing:antialiased}
img{max-width:100%}
[hidden]{display:none!important}
a{color:inherit}
.wrap{max-width:1160px;margin:0 auto;padding-inline:20px}
h1,h2,h3{font-family:"Archivo",system-ui,sans-serif;margin:0;text-wrap:balance;letter-spacing:-.01em}
h1{font-size:clamp(34px,5vw,60px);line-height:1.02;font-weight:800;font-stretch:112%}
h2{font-size:clamp(26px,3.4vw,40px);line-height:1.1;font-weight:700;font-stretch:112%}
h3{font-size:18px;line-height:1.3;font-weight:700;font-stretch:100%}
p{margin:0}
.mono{font-family:"DM Mono",ui-monospace,monospace;font-variant-numeric:tabular-nums}
.eyebrow{font-family:"DM Mono",monospace;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--blue);font-weight:500}
.muted{color:var(--muted)}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 18px;border-radius:6px;font-weight:600;text-decoration:none;border:1px solid var(--ink);line-height:1;font-size:15px}
.btn.primary{background:var(--ink);color:var(--bg)}
.btn.ghost{background:transparent;color:var(--ink)}
.btn:focus-visible,button:focus-visible{outline:2px solid var(--blue);outline-offset:3px}

/* nav */
.nav{position:sticky;top:env(safe-area-inset-top,0px);z-index:10;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:60px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;font-family:"Archivo",sans-serif;font-weight:700;font-stretch:112%;text-decoration:none;font-size:16px}
.brand svg{width:26px;height:26px}
.nav ul{display:flex;gap:22px;list-style:none;margin:0;padding:0;font-size:14px;font-weight:500}
.nav ul a{text-decoration:none;color:var(--muted)}
.nav ul a:hover{color:var(--ink)}
@media (max-width:820px){.nav ul{display:none}}

/* hero */
.hero{padding-block:56px 72px}
.hero .grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:48px;align-items:center}
@media (max-width:920px){.hero .grid{grid-template-columns:1fr;gap:36px}}
.hero-copy{display:flex;flex-direction:column;gap:20px}
.hero-copy .lede{font-size:18px;max-width:46ch;color:var(--muted)}
.ctas{display:flex;gap:12px;flex-wrap:wrap;margin-top:6px}
.tagline{font-family:"Archivo",sans-serif;font-weight:700;font-stretch:125%;font-size:14px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}

/* payer mock */
.mock{background:var(--surface);border:1px solid var(--line);border-radius:10px;overflow:hidden;box-shadow:0 20px 50px -30px rgba(17,20,24,.35);font-size:13px;min-width:0}
.mock-bar{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 14px;border-bottom:1px solid var(--line);background:var(--surface-2)}
.mock-bar .title{font-weight:600;display:flex;align-items:center;gap:8px}
.mock-bar .title span.dot{width:8px;height:8px;border-radius:50%;background:var(--green);display:inline-block}
.pill{font-family:"DM Mono",monospace;font-size:11px;padding:3px 8px;border-radius:99px;border:1px solid var(--line);color:var(--muted);white-space:nowrap}
.mock-body{display:grid;grid-template-columns:1fr 1fr;gap:14px;padding:14px}
@media (max-width:560px){.mock-body{grid-template-columns:1fr}}
.tiles{grid-column:1/-1;display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
@media (max-width:560px){.tiles{grid-template-columns:1fr 1fr}.tiles .tile:last-child{grid-column:1/-1}}
.tile{border:1px solid var(--line);border-radius:8px;padding:10px 12px;display:flex;flex-direction:column;gap:2px;min-width:0}
.tile .lbl{font-size:11px;color:var(--muted)}
.tile .val{font-family:"Archivo",sans-serif;font-weight:700;font-size:22px;font-variant-numeric:tabular-nums;line-height:1.1}
.tile .delta{font-family:"DM Mono",monospace;font-size:11px;color:var(--muted)}
.tile .delta.good{color:var(--green)}
.panel{border:1px solid var(--line);border-radius:8px;padding:12px;min-width:0;display:flex;flex-direction:column;gap:8px}
.panel .ph{display:flex;justify-content:space-between;align-items:baseline;gap:8px}
.panel .ph b{font-weight:600;font-size:12px}
.panel .ph span{font-size:11px;color:var(--muted)}
/* bar chart */
.chart{display:grid;grid-template-columns:auto 1fr auto;gap:6px 10px;align-items:center;font-size:12px}
.chart .cat{color:var(--muted);white-space:nowrap}
.chart .track{display:block;height:14px;position:relative;background:var(--surface-2);border-radius:0 4px 4px 0}
.chart .bar{display:block;height:14px;border-radius:0 4px 4px 0;background:var(--bar);transition:width .5s ease}
.chart .bar.other{background:var(--bar-2)}
.chart .num{font-family:"DM Mono",monospace;color:var(--ink);font-size:12px;text-align:right}
.chart-foot{font-size:11px;color:var(--muted);display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.chart-foot i{display:inline-block;width:10px;height:10px;border-radius:2px;vertical-align:-1px;margin-right:4px}
/* feed */
.feed{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:0;font-family:"DM Mono",monospace;font-size:12px}
.feed li{display:grid;grid-template-columns:44px 1fr auto;gap:10px;align-items:center;padding:6px 0;border-top:1px solid var(--line)}
.feed li:first-child{border-top:0}
.feed .t{color:var(--muted)}
.feed .e{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-family:"Hanken Grotesk",sans-serif;font-size:12.5px}
.feed .s{font-size:10px;padding:2px 7px;border-radius:99px;white-space:nowrap;font-weight:500;letter-spacing:.02em}
.s.ok{background:var(--green-soft);color:var(--green)}
.s.route{background:var(--blue-soft);color:var(--blue)}
.s.flag{background:var(--amber-soft);color:var(--amber)}
@media (prefers-reduced-motion:no-preference){
  .feed li.new{animation:feedin .45s ease}
  @keyframes feedin{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}
}
.mock-foot{padding:8px 14px;border-top:1px solid var(--line);font-size:11px;color:var(--muted);display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap}

/* sections */
section{padding-block:72px;border-top:1px solid var(--line)}
.sec-head{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:28px;align-items:end;margin-bottom:40px}
.sec-head .lede{color:var(--muted);font-size:17px;max-width:52ch}
@media (max-width:820px){.sec-head{grid-template-columns:1fr;gap:14px}}
.stack{display:flex;flex-direction:column;gap:10px}

/* replaces */
.replace{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:var(--surface)}
@media (max-width:760px){.replace{grid-template-columns:1fr}}
.replace > div{padding:24px}
.replace .before{background:var(--surface-2);border-right:1px solid var(--line)}
@media (max-width:760px){.replace .before{border-right:0;border-bottom:1px solid var(--line)}}
.replace h3{margin-bottom:14px}
.replace ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}
.replace li{display:flex;gap:10px;align-items:flex-start}
.replace li svg{flex:none;width:18px;height:18px;margin-top:2px}
.replace .before li{color:var(--muted)}
.after-note{margin-top:16px;padding-top:14px;border-top:1px solid var(--line);color:var(--muted);font-size:14px}

/* problem */
.problem{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:48px;align-items:start}
@media (max-width:820px){.problem{grid-template-columns:1fr;gap:28px}}
.big{font-family:"Archivo",sans-serif;font-weight:800;font-stretch:112%;font-size:clamp(56px,9vw,104px);line-height:.95;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.big-sub{font-size:18px;margin-top:8px}
.src{font-size:13px;color:var(--muted);margin-top:14px;max-width:38ch}
.reasons{list-style:none;margin:0;padding:0;display:flex;flex-direction:column}
.reasons li{padding:18px 0;border-top:1px solid var(--line);display:grid;grid-template-columns:auto 1fr;gap:14px}
.reasons li:last-child{border-bottom:1px solid var(--line)}
.reasons .k{font-family:"DM Mono",monospace;font-size:12px;color:var(--amber);padding-top:4px;white-space:nowrap}
.reasons h3{margin-bottom:4px}

/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media (max-width:760px){.steps{grid-template-columns:1fr}}
.step{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:22px;display:flex;flex-direction:column;gap:10px}
.step .n{font-family:"DM Mono",monospace;font-size:12px;color:var(--blue)}
.step p{color:var(--muted)}
.flow{margin-top:28px;padding:18px 22px;background:var(--surface-2);border:1px solid var(--line);border-radius:10px;display:flex;flex-wrap:wrap;gap:10px 18px;align-items:center;font-size:14px}
.flow .node{padding:6px 12px;border:1px solid var(--line);border-radius:6px;background:var(--surface);font-weight:600;white-space:nowrap}
.flow .node.core{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.flow .arrow{color:var(--muted);font-family:"DM Mono",monospace;font-size:12px}
.flow .consent{color:var(--amber)}
.flow-note{margin-top:14px;color:var(--muted);max-width:70ch}

/* audiences */
.pair{display:grid;grid-template-columns:1fr 1fr;gap:20px}
@media (max-width:760px){.pair{grid-template-columns:1fr}}
.aud{border-top:2px solid var(--ink);padding-top:18px}
.aud h3{margin-bottom:14px}
.aud dl{margin:0;display:flex;flex-direction:column;gap:12px}
.aud dt{font-weight:600}
.aud dd{margin:0;color:var(--muted);font-size:15px}

/* regs table */
.tbl-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:10px;background:var(--surface)}
table{border-collapse:collapse;width:100%;min-width:680px;font-size:15px}
th,td{text-align:left;padding:14px 18px;vertical-align:top;border-top:1px solid var(--line)}
thead th{border-top:0;font-family:"DM Mono",monospace;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-weight:500;background:var(--surface-2)}
td.rule{font-weight:600;white-space:nowrap}
td.who{white-space:nowrap}
td.who span{display:inline-block;padding:2px 8px;border-radius:99px;background:var(--blue-soft);color:var(--blue);font-size:12px;font-weight:600}
td.what{color:var(--muted)}
.closing{margin-top:22px;font-family:"Archivo",sans-serif;font-weight:700;font-stretch:112%;font-size:20px;display:flex;gap:12px;align-items:center}
.closing::before{content:"";width:28px;height:3px;background:var(--blue);display:inline-block}

/* why */
.why{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,300px),1fr));gap:20px}
.why > div{border-top:1px solid var(--line);padding-top:16px}
.why h3{margin-bottom:6px}
.why p{color:var(--muted);font-size:15px}

/* contact */
.contact{background:var(--ink);color:var(--bg);border-top:0}
.contact .grid{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center}
@media (max-width:820px){.contact .grid{grid-template-columns:1fr}}
.contact h2{color:var(--bg)}
.contact p{color:color-mix(in srgb,var(--bg) 70%,transparent)}
.email{display:flex;align-items:center;justify-content:space-between;gap:12px;border:1px solid color-mix(in srgb,var(--bg) 25%,transparent);border-radius:8px;padding:12px 14px 12px 18px;font-family:"DM Mono",monospace;font-size:16px;flex-wrap:wrap}
.email button{font:inherit;font-family:"Hanken Grotesk",sans-serif;font-weight:600;font-size:14px;border:0;border-radius:6px;padding:10px 14px;background:var(--bg);color:var(--ink);cursor:pointer}
.team-line{margin-top:28px;padding-top:22px;border-top:1px solid color-mix(in srgb,var(--bg) 18%,transparent);font-size:14px}
footer{background:var(--ink);color:color-mix(in srgb,var(--bg) 60%,transparent);font-size:13px;padding-block:18px 24px}
footer .wrap{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}

/* ---- site additions (multi-page) ---- */
.nav ul a[aria-current="page"]{color:var(--ink)}
.nav .menu-btn{display:none;font:inherit;font-weight:600;font-size:14px;background:transparent;border:1px solid var(--line);border-radius:6px;padding:8px 10px;color:var(--ink);cursor:pointer}
@media (max-width:820px){
  .nav .menu-btn{display:inline-flex}
  .nav .wrap{flex-wrap:wrap;height:auto;min-height:60px;padding-block:8px}
  .nav ul{display:none;flex-direction:column;gap:12px;width:100%;order:10;padding-block:8px 6px;border-top:1px solid var(--line)}
  .nav.open ul{display:flex}
  .nav .btn{padding:10px 14px;font-size:14px}
}
.page-head{padding-block:56px 40px}
.page-head .eyebrow{display:block;margin-bottom:14px}
.page-head .lede{font-size:18px;color:var(--muted);max-width:62ch;margin-top:16px}
.prose{max-width:68ch}
.prose p{margin-bottom:14px;color:var(--ink)}
.prose ul{margin:0 0 14px;padding-left:22px}
.prose li{margin-bottom:6px}
.prose h3{margin:26px 0 8px}
.cols-2{display:grid;grid-template-columns:1fr 1fr;gap:28px}
@media (max-width:760px){.cols-2{grid-template-columns:1fr}}
.list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column}
.list li{padding:14px 0;border-top:1px solid var(--line)}
.list li:last-child{border-bottom:1px solid var(--line)}
.list b{display:block;margin-bottom:2px}
.list span{color:var(--muted);font-size:15px}
.phases{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;counter-reset:ph}
@media (max-width:900px){.phases{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.phases{grid-template-columns:1fr}}
.phase{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:20px;display:flex;flex-direction:column;gap:8px}
.phase .n{font-family:"DM Mono",monospace;font-size:12px;color:var(--blue)}
.phase p{color:var(--muted);font-size:15px}
.cta-band{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:32px;display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.cta-band h2{font-size:clamp(22px,2.6vw,30px)}
.cta-band p{color:var(--muted);margin-top:6px;max-width:52ch}
.banner{background:var(--amber-soft);color:var(--amber);border-bottom:1px solid var(--line);font-size:14px;font-weight:600;padding:10px 0}
.reviewed{font-family:"DM Mono",monospace;font-size:12px;color:var(--muted);margin-top:18px}

/* member card (vendor-agnostic drawing) */
.card{aspect-ratio:1.586;max-width:400px;width:100%;border-radius:14px;background:linear-gradient(135deg,#1F2937,#111418);color:#E8ECF1;padding:22px;display:flex;flex-direction:column;justify-content:space-between;box-shadow:0 24px 50px -30px rgba(17,20,24,.6);position:relative;overflow:hidden}
.card::after{content:"";position:absolute;inset:auto -40% -60% auto;width:70%;aspect-ratio:1;border-radius:50%;background:radial-gradient(circle,rgba(96,165,250,.25),transparent 70%)}
.card .top{display:flex;justify-content:space-between;align-items:center;font-family:"Archivo",sans-serif;font-weight:700;font-stretch:112%;font-size:15px}
.card .chip{width:40px;height:30px;border-radius:5px;background:linear-gradient(135deg,#E5C978,#B8962E);position:relative}
.card .chip::before{content:"";position:absolute;inset:6px 10px;border:1px solid rgba(0,0,0,.25);border-radius:2px}
.card .num{font-family:"DM Mono",monospace;font-size:19px;letter-spacing:.06em;margin-top:8px}
.card .name{font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:#B7C0CC}
.card-note{font-size:13px;color:var(--muted);margin-top:12px;max-width:44ch}

/* footer nav */
footer .fnav{display:flex;gap:18px;flex-wrap:wrap;list-style:none;margin:0 0 14px;padding:0}
footer .fnav a{color:inherit;text-decoration:none}
footer .fnav a:hover{color:var(--bg)}
footer .wrap{flex-direction:column;gap:10px}
footer .row{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;width:100%}

/* Review-only theme switch */
.nav .theme-btn{display:inline-flex;align-items:center;gap:6px;font:inherit;font-weight:600;font-size:13px;background:transparent;border:1px solid var(--line);border-radius:6px;padding:7px 10px;color:var(--ink);cursor:pointer;margin-left:auto}
.nav .theme-btn svg{width:15px;height:15px}
.nav .theme-btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
@media (max-width:760px){.nav .theme-btn span{display:none}.nav .theme-btn{margin-left:0;padding:7px}}

.callout{margin:28px 0 0;padding:16px 20px;border-left:3px solid var(--accent);background:var(--surface-2,var(--surface));color:var(--ink);max-width:70ch;line-height:1.55}
.stack .callout{margin-top:18px}