:root{
  --ink:#1d2a23;
  --muted:#56665c;
  --sage:#5f7a69;
  --deep:#3a5446;
  --mist:#edf1ed;
  --line:#d3dcd4;
  --paper:#fafbf9;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font:17px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
a{color:var(--deep);text-underline-offset:3px}
a:focus-visible,summary:focus-visible{outline:3px solid var(--sage);outline-offset:3px;border-radius:2px}
.wrap{max-width:68rem;margin:0 auto;padding:0 1.5rem}

header.site{border-bottom:1px solid var(--line)}
header.site .wrap{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:.5rem 2rem;padding-top:1.1rem;padding-bottom:1.1rem}
.wordmark{font-family:Georgia,"Times New Roman",serif;font-style:italic;font-size:1.4rem;color:var(--ink);text-decoration:none}
nav{display:flex;flex-wrap:wrap;gap:.25rem 1.5rem}
nav a{font-size:.95rem;text-decoration:none;color:var(--muted)}
nav a:hover,nav a[aria-current="page"]{color:var(--deep);text-decoration:underline}

h1,h2{font-family:Georgia,"Times New Roman",serif;font-weight:400;line-height:1.15;margin:0}

.hero{padding:4rem 0 3.5rem}
.hero-grid{display:grid;gap:3rem;grid-template-columns:1fr}
.hero h1{font-size:clamp(2.4rem,6vw,3.6rem);letter-spacing:-.01em;max-width:14ch}
.lead{font-size:1.2rem;max-width:34rem;margin:1.5rem 0 1rem;color:var(--ink)}
.soon{margin:0;color:var(--muted)}

.demo{background:#fff;border:1px solid var(--line);border-radius:4px;padding:1.4rem 1.5rem;align-self:start}
.demo h2{font-size:1.2rem;margin-bottom:1rem}
.demo ul{list-style:none;margin:0;padding:0}
.demo li{display:grid;grid-template-columns:1.4rem 1fr auto;gap:.75rem;align-items:center;padding:.7rem 0;border-top:1px solid var(--line)}
.demo li:first-child{border-top:0}
.tick{width:1.1rem;height:1.1rem;border:2px solid var(--sage);border-radius:50%;position:relative}
.done .tick{background:var(--sage)}
.done .tick::after{content:"";position:absolute;left:.28rem;top:.08rem;width:.28rem;height:.55rem;border:solid #fff;border-width:0 2px 2px 0;transform:rotate(45deg)}
.done .task{color:var(--muted);text-decoration:line-through}
.who{font-size:.9rem;color:var(--deep);background:var(--mist);padding:.1rem .6rem;border-radius:999px}
.demo-note{font-size:.88rem;color:var(--muted);margin:1rem 0 0}

.what{border-top:1px solid var(--line);padding:3.5rem 0}
.what h2{font-size:1.7rem;margin-bottom:2rem}
.what dl{margin:0;display:grid;gap:1.75rem 3rem;grid-template-columns:1fr}
.what dt{font-family:Georgia,"Times New Roman",serif;font-size:1.2rem;margin-bottom:.3rem}
.what dd{margin:0;max-width:32rem;color:var(--muted)}

.doc{max-width:44rem;margin:0 auto;padding:3rem 1.5rem 4rem}
.doc h1{font-size:clamp(2rem,5vw,2.6rem);margin-bottom:.5rem}
.doc .meta{color:var(--muted);margin:0 0 2rem}
.doc h2{font-size:1.4rem;margin:2.5rem 0 .6rem}
.doc p,.doc ul{margin:.7rem 0}
.doc ul{padding-left:1.3rem}
.doc li{margin:.35rem 0}
.doc details{border-top:1px solid var(--line);padding:.9rem 0}
.doc details:last-of-type{border-bottom:1px solid var(--line)}
.doc summary{cursor:pointer;font-weight:600}
.doc details p{color:var(--muted)}
.callout{background:var(--mist);border-left:4px solid var(--sage);padding:1rem 1.2rem;margin:1.5rem 0}
.callout p{margin:.3rem 0}

footer.site{border-top:1px solid var(--line);padding:2rem 0 3rem;color:var(--muted);font-size:.9rem}
footer.site p{margin:.3rem 0;max-width:44rem}

@media (min-width:56rem){
  .hero-grid{grid-template-columns:1.15fr .85fr;align-items:center}
  .what dl{grid-template-columns:1fr 1fr}
}