:root{
  --paper:#F5F7F8; --card:#FFFFFF; --ink:#0F1C2E; --muted:#4A5868; --line:#D5DCE2;
  --proof:#2349D8; --proof-bg:#E7ECFD; --maybe:#8A5A00; --maybe-bg:#FBF1DC;
  --none:#4F5B6A; --none-bg:#ECEFF2; --bad:#A02323; --bad-bg:#FBE9E9;
  --font-head:"Bricolage Grotesque", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-body:"Instrument Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
}
@media (prefers-color-scheme: dark){
  :root{
    --paper:#0D1622; --card:#142133; --ink:#EEF2F6; --muted:#A6B3C2; --line:#27374B;
    --proof:#9DB3FF; --proof-bg:#1B2A52; --maybe:#F0C060; --maybe-bg:#3A2D10;
    --none:#B4BFCC; --none-bg:#1E2B3B; --bad:#FF9A9A; --bad-bg:#3A1A1A;
  }
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--paper);color:var(--ink);font:400 1.0625rem/1.65 var(--font-body);-webkit-font-smoothing:antialiased}
a{color:var(--proof);text-underline-offset:3px}
a:focus-visible,button:focus-visible{outline:3px solid var(--proof);outline-offset:3px;border-radius:4px}
.wrap{max-width:1080px;margin:0 auto;padding:0 24px}
header.site{border-bottom:1px solid var(--line)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;padding-top:18px;padding-bottom:18px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:11px;font:700 1.4rem/1 var(--font-head);letter-spacing:-0.02em;color:var(--ink);text-decoration:none}
.brand .mark{width:34px;height:34px;flex:none}
.brand.small{font-size:1.2rem}.brand.small .mark{width:28px;height:28px}
.m-bg{fill:var(--ink)}.m-env{stroke:var(--paper)}
nav.site{display:flex;gap:22px;flex-wrap:wrap}
nav.site a{color:var(--muted);text-decoration:none;font-weight:500}
nav.site a:hover{color:var(--ink);text-decoration:underline}
h1,h2,h3{font-family:var(--font-head);letter-spacing:-0.02em;line-height:1.1;margin:0}
h1{font-size:clamp(2.3rem,5.4vw,3.7rem);font-weight:700}
h2{font-size:clamp(1.6rem,3vw,2.15rem);font-weight:700;margin-bottom:14px}
h3{font-size:1.2rem;font-weight:600;margin-bottom:6px}
p{margin:0 0 14px;max-width:68ch}
.lede{font-size:1.2rem;color:var(--muted);margin-top:20px;max-width:56ch}
.hero{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center;padding:72px 0 64px}
.actions{display:flex;gap:14px;margin-top:28px;flex-wrap:wrap}
.btn{display:inline-block;padding:13px 22px;border-radius:8px;font-weight:600;text-decoration:none;border:2px solid var(--ink);color:var(--paper);background:var(--ink)}
.btn.alt{background:transparent;color:var(--ink)}
.btn:hover{text-decoration:underline}
/* the ledger: a printed report with a torn edge */
.ledger{background:var(--card);border:1px solid var(--line);border-radius:6px 6px 0 0;padding:24px 24px 30px;position:relative;
  -webkit-mask:radial-gradient(circle 8px at 8px 100%,#0000 98%,#000) 0 0/16px 100%;mask:radial-gradient(circle 8px at 8px 100%,#0000 98%,#000) 0 0/16px 100%}
.ledger h2{font-size:1.15rem;margin-bottom:2px}
.ledger .cap{color:var(--muted);font-size:.9rem;margin-bottom:14px}
.row{display:grid;grid-template-columns:1fr auto;gap:2px 14px;padding:11px 0 11px 14px;border-top:1px solid var(--line);position:relative}
.row::before{content:"";position:absolute;left:0;top:11px;bottom:11px;width:4px;border-radius:2px;background:var(--bar,var(--none))}
.row b{font-weight:600}
.row .n{font:700 1.3rem/1 var(--font-head);text-align:right}
.row small{grid-column:1/-1;color:var(--muted);font-size:.88rem;line-height:1.4}
.r-proof{--bar:var(--proof)} .r-maybe{--bar:#C98A12} .r-none{--bar:var(--none)} .r-bad{--bar:var(--bad)}
section.block{padding:56px 0;border-top:1px solid var(--line)}
.split{display:grid;grid-template-columns:.8fr 1.2fr;gap:56px}
.list-lines>div{padding:20px 0;border-top:1px solid var(--line)}
.list-lines>div:first-child{border-top:0;padding-top:0}
.list-lines p{margin:0;color:var(--muted)}
dl.status{margin:0}
dl.status>div{display:grid;grid-template-columns:200px 1fr;gap:18px;padding:16px 0;border-top:1px solid var(--line)}
dl.status>div:first-child{border-top:0}
dl.status dt{font-weight:600}
dl.status dd{margin:0;color:var(--muted)}
.tag{display:inline-block;padding:2px 10px;border-radius:99px;font-size:.85rem;font-weight:600;margin-left:8px;vertical-align:1px}
.t-proof{background:var(--proof-bg);color:var(--proof)} .t-maybe{background:var(--maybe-bg);color:var(--maybe)} .t-none{background:var(--none-bg);color:var(--none)} .t-bad{background:var(--bad-bg);color:var(--bad)}
ul.checks{list-style:none;margin:0;padding:0}
ul.checks li{padding:12px 0 12px 30px;border-top:1px solid var(--line);position:relative}
ul.checks li:first-child{border-top:0}
ul.checks li::before{content:"";position:absolute;left:2px;top:19px;width:12px;height:7px;border-left:3px solid var(--proof);border-bottom:3px solid var(--proof);transform:rotate(-45deg)}
ol.steps{margin:0;padding:0;list-style:none;counter-reset:s}
ol.steps li{counter-increment:s;padding:18px 0 18px 54px;border-top:1px solid var(--line);position:relative}
ol.steps li:first-child{border-top:0}
ol.steps li::before{content:counter(s);position:absolute;left:0;top:16px;width:34px;height:34px;border-radius:50%;border:2px solid var(--ink);display:grid;place-items:center;font:700 1rem/1 var(--font-head)}
ol.steps b{display:block}
ol.steps span{color:var(--muted)}
.callout{background:var(--card);border:1px solid var(--line);border-left:4px solid var(--proof);padding:18px 22px;border-radius:6px;margin:22px 0}
.callout p:last-child{margin-bottom:0}
/* text pages */
.prose{max-width:760px;padding:56px 0 72px}
.prose h1{font-size:clamp(2rem,4.4vw,2.8rem);margin-bottom:8px}
.prose h2{font-size:1.4rem;margin:36px 0 10px}
.prose .meta{color:var(--muted);margin-bottom:28px}
.prose ul{padding-left:22px;margin:0 0 16px}
.prose li{margin-bottom:6px;max-width:68ch}
.mail{background:var(--card);border:1px solid var(--line);border-radius:8px;overflow:hidden;margin:20px 0}
.mail .bar{background:var(--none-bg);padding:12px 18px;font-size:.92rem;color:var(--muted);border-bottom:1px solid var(--line)}
.mail .bar b{color:var(--ink);font-weight:600}
.mail .body{padding:18px 18px 8px}
.mail .foot{padding:12px 18px 18px;color:var(--muted);font-size:.9rem;border-top:1px dashed var(--line)}
@media (max-width:860px){
  .hero{grid-template-columns:1fr;gap:40px;padding:48px 0 44px}
  .split{grid-template-columns:1fr;gap:20px}
  dl.status>div{grid-template-columns:1fr;gap:4px}
}

.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:var(--paper);padding:10px 16px;border-radius:6px;z-index:10}
.skip:focus{left:8px}
nav.site{align-items:center}
nav.site .navbtn{border:2px solid var(--ink);color:var(--ink);padding:7px 16px;border-radius:8px;font-weight:600}
nav.site .navbtn:hover{background:var(--ink);color:var(--paper);text-decoration:none}
.fine{margin-top:22px;color:var(--muted);font-size:.95rem}
/* product preview */
.app{border:1px solid var(--line);border-radius:10px;background:var(--card);overflow:hidden}
.app-bar{display:flex;align-items:center;gap:12px;padding:10px 14px;background:var(--none-bg);border-bottom:1px solid var(--line);font-size:.85rem;color:var(--muted)}
.dots{width:46px;height:10px;background:radial-gradient(circle 4.5px at 5px 5px,var(--line) 98%,#0000) 0 0/16px 10px repeat-x}
.app-body{padding:18px}
.app-head{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:14px}
.app-head span{color:var(--muted);font-size:.9rem}
.chips{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}
.chip{padding:5px 12px;border:1px solid var(--line);border-radius:99px;font-size:.88rem;color:var(--muted)}
.chip.on{background:var(--ink);border-color:var(--ink);color:var(--paper);font-weight:600}
.app table{width:100%;border-collapse:collapse;font-size:.92rem}
.app th{text-align:left;font-weight:600;color:var(--muted);padding:8px 8px 8px 0;border-bottom:1px solid var(--line)}
.app td{padding:10px 8px 10px 0;border-bottom:1px solid var(--line)}
.app-foot{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-top:16px;color:var(--muted);font-size:.88rem}
.pill{background:var(--proof-bg);color:var(--proof);font-weight:600;padding:7px 14px;border-radius:8px}
/* FAQ */
.faq details{border-top:1px solid var(--line);padding:16px 0}
.faq details:first-child{border-top:0;padding-top:0}
.faq summary{cursor:pointer;font-weight:600;list-style:none;display:flex;justify-content:space-between;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font:500 1.4rem/1 var(--font-head);color:var(--muted)}
.faq details[open] summary::after{content:"\2212"}
.faq details p{margin:10px 0 0;color:var(--muted)}
/* about facts */
dl.facts{margin:0}
dl.facts>div{display:grid;grid-template-columns:160px 1fr;gap:16px;padding:12px 0;border-top:1px solid var(--line)}
dl.facts dt{font-weight:600}
dl.facts dd{margin:0;color:var(--muted)}
/* footer */
footer.site{border-top:1px solid var(--line);padding:44px 0 28px;color:var(--muted);font-size:.95rem;margin-top:24px}
footer.site .grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px}
footer.site h2{font-size:1rem;color:var(--ink);margin-bottom:10px}
footer.site p{margin:12px 0 0;max-width:42ch}
footer.site a{color:var(--muted)}
footer.site ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
footer.site .legal{margin-top:28px;padding-top:20px;border-top:1px solid var(--line);font-size:.85rem}
footer.site .legal p{max-width:none}
@media (max-width:860px){footer.site .grid{grid-template-columns:1fr;gap:28px}dl.facts>div{grid-template-columns:1fr;gap:2px}}