/* Cornerstone site styles for every page built from Markdown (_layouts/default.html).
   The landing page (index.html) carries its own inline copy of the same tokens. */
@font-face{font-family:"Source Serif 4";src:url(serif-400.woff2) format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:"Source Serif 4";src:url(serif-600.woff2) format("woff2");font-weight:600;font-display:swap}
@font-face{font-family:"Archivo";src:url(sans-400.woff2) format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:"Archivo";src:url(sans-600.woff2) format("woff2");font-weight:600;font-display:swap}
@font-face{font-family:"Archivo";src:url(sans-700.woff2) format("woff2");font-weight:700;font-display:swap}

:root{
  color-scheme:light dark;
  --bg:#F7F4EE; --surface:#FFFDFA; --ink:#16233B; --body:#3D4A63; --muted:#6F7A90;
  --accent:#9A6B2F; --accent-soft:#F1E7D6; --line:#E4DED2;
  --navy:#131B2E; --on-navy:#F5F2EA; --on-navy-sub:#A9B1C2; --gold:#DDB868;
  --serif:"Source Serif 4",Georgia,"Times New Roman",serif;
  --sans:"Archivo",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
@media (prefers-color-scheme:dark){
  :root{--bg:#0E1424; --surface:#161F35; --ink:#F2EEE5; --body:#C5CBD8; --muted:#97A0B3;
        --accent:#DDB868; --accent-soft:#232B40; --line:#263049;}
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--body);font:400 17px/1.65 var(--sans);overflow-x:hidden}
img{max-width:100%;height:auto}
a{color:var(--accent);text-underline-offset:3px}
a:focus-visible,summary:focus-visible{outline:3px solid var(--gold);outline-offset:3px}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-999px;top:8px;background:var(--surface);color:var(--ink);padding:8px 12px;border-radius:8px;z-index:9}
.skip:focus{left:8px}

/* header */
.bar{background:var(--navy)}
.bar .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:68px}
.brand{display:flex;align-items:center;gap:11px;color:var(--on-navy);text-decoration:none;font:600 20px/1 var(--serif);flex:none}
.brand img{width:34px;height:34px;border-radius:9px}
.nav{display:flex;align-items:center;gap:20px;overflow-x:auto;scrollbar-width:none}
.nav::-webkit-scrollbar{display:none}
.nav a{color:var(--on-navy-sub);text-decoration:none;font:600 15px/1 var(--sans);white-space:nowrap;padding:6px 0}
.nav a:hover,.nav a[aria-current]{color:var(--on-navy)}
.nav a.cta{background:var(--gold);color:#16233B;padding:10px 15px;border-radius:999px}

/* article */
.page{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;padding-top:48px;padding-bottom:80px;align-items:start}
.prose{min-width:0;max-width:760px}
.prose h1,.prose h2,.prose h3,.prose h4{font-family:var(--serif);font-weight:600;color:var(--ink);line-height:1.15;letter-spacing:-.01em}
.prose h1{font-size:clamp(34px,4.4vw,48px);margin:0 0 18px}
.prose h2{font-size:clamp(26px,3vw,32px);margin:48px 0 14px;padding-top:28px;border-top:1px solid var(--line)}
.prose h3{font-size:22px;margin:32px 0 10px}
.prose h4{font-size:18px;margin:24px 0 8px}
.prose p,.prose ul,.prose ol{margin:0 0 16px}
.prose ul,.prose ol{padding-left:1.3em}
.prose li{margin:4px 0}
.prose li::marker{color:var(--accent)}
.prose strong{color:var(--ink)}
.prose em:first-child:last-child{color:var(--muted)}
.prose hr{border:0;border-top:1px solid var(--line);margin:36px 0}
.prose blockquote{margin:0 0 16px;padding:14px 18px;background:var(--accent-soft);border-left:4px solid var(--accent);border-radius:0 12px 12px 0;color:var(--ink)}
.prose blockquote p:last-child{margin:0}
.prose code{font:500 .9em var(--mono);background:var(--accent-soft);padding:2px 6px;border-radius:6px}
.prose pre{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:14px 16px;overflow-x:auto;margin:0 0 16px}
.prose pre code{background:none;padding:0;font-size:15px;color:var(--ink)}
.prose table{border-collapse:collapse;width:100%;margin:0 0 18px;font-size:15px;display:block;overflow-x:auto}
.prose th,.prose td{border-bottom:1px solid var(--line);padding:9px 10px;text-align:left;vertical-align:top}
.prose th{color:var(--ink);font-weight:700}
.prose details{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:0 16px;margin:0 0 20px}
.prose details[open]{padding-bottom:4px}
.prose summary{cursor:pointer;font-weight:700;color:var(--accent);padding:12px 0;list-style:none}
.prose summary::-webkit-details-marker{display:none}
.prose summary::before{content:"+ ";font-weight:700}
.prose details[open] summary::before{content:"− "}
.prose h3[id]{scroll-margin-top:16px}

/* side card */
.side{position:sticky;top:24px;display:flex;flex-direction:column;gap:16px}
.card{background:var(--navy);color:var(--on-navy-sub);border-radius:18px;padding:24px}
.card .k{font:700 12px/1.2 var(--sans);letter-spacing:.16em;text-transform:uppercase;color:var(--gold);margin:0 0 10px}
.card h2{font:600 24px/1.2 var(--serif);color:var(--on-navy);margin:0 0 10px}
.card p{margin:0 0 18px;font-size:15px;line-height:1.55}
.btn{display:flex;justify-content:center;font:600 15px/1 var(--sans);text-decoration:none;padding:14px 18px;border-radius:999px;margin-top:10px}
.btn.gold{background:var(--gold);color:#16233B}
.btn.ghost{color:var(--on-navy);border:1.5px solid rgba(245,242,234,.35)}
.qr{display:flex;align-items:center;gap:12px;margin-top:18px;font:700 11px/1.35 var(--sans);letter-spacing:.1em;text-transform:uppercase;color:var(--on-navy-sub)}
.qr img{width:76px;height:76px;background:#fff;border-radius:10px;padding:6px}
.links{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:20px 22px}
.links p{font:700 12px/1.2 var(--sans);letter-spacing:.16em;text-transform:uppercase;color:var(--accent);margin:0 0 10px}
.links ul{list-style:none;margin:0;padding:0}
.links li{padding:7px 0;border-top:1px solid var(--line)}
.links li:first-child{border-top:0}
.links a{text-decoration:none;font-weight:600;color:var(--ink)}
.links a:hover{color:var(--accent)}

/* footer */
footer{border-top:1px solid var(--line);padding:44px 0 56px;color:var(--muted);font-size:15px}
.foot{display:flex;flex-wrap:wrap;gap:10px 22px;margin:0 0 18px;padding:0;list-style:none}
.foot a{color:var(--body);text-decoration:none;font-weight:600}
.foot a:hover{color:var(--accent)}
footer p{margin:0;max-width:60em;line-height:1.55}

/* phones: the install button lives in a bar at the bottom instead of the header */
.mobile-cta{display:none;position:fixed;left:12px;right:12px;bottom:12px;z-index:5;justify-content:center;align-items:center;
  background:var(--gold);color:#16233B;font:700 16px/1 var(--sans);text-decoration:none;padding:16px;border-radius:999px;
  box-shadow:0 10px 30px rgba(0,0,0,.25)}

@media (max-width:960px){
  .page{grid-template-columns:1fr;gap:36px;padding-top:32px;padding-bottom:64px}
  .side{position:static}
  .qr{display:none}
}
@media (max-width:640px){
  .bar .wrap{flex-wrap:wrap;gap:6px 16px;padding-top:12px;padding-bottom:10px}
  .nav{width:100%;order:2}
  .nav a.cta{display:none}
  .mobile-cta{display:flex}
  body{padding-bottom:76px}
}