:root {
  color-scheme: light dark;
  --bg: #fafafa;
  --fg: #18181b;
  --fg-2: #52525b;
  --rule: #e4e4e7;
  --accent: #7c4dd8;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141417;
    --fg: #ecebef;
    --fg-2: #a1a1aa;
    --rule: #2a2a30;
    --accent: #b592f0;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, sans-serif;
}
main {
  max-width: 640px;
  margin: 0 auto;
  padding: 72px 20px 64px;
}
.logo { display: block; border-radius: 16px; }
h1 {
  margin: 24px 0 4px;
  font-size: 40px;
  line-height: 1.1;
  letter-spacing: -0.02em;
}
h2 { margin: 36px 0 8px; font-size: 20px; }
.lead { margin: 0 0 24px; font-size: 21px; color: var(--fg-2); }
p, li { color: var(--fg); }
ul { padding-left: 20px; }
li { margin: 6px 0; }
a { color: var(--accent); }
.links { margin-top: 36px; padding-top: 20px; border-top: 1px solid var(--rule); }
.meta { color: var(--fg-2); font-size: 15px; }
table { width: 100%; border-collapse: collapse; margin: 12px 0; font-size: 15px; }
th, td { padding: 8px 10px 8px 0; border-bottom: 1px solid var(--rule); text-align: left; vertical-align: top; }
th { color: var(--fg-2); font-weight: 600; }
@media (max-width: 520px) {
  thead { display: none; }
  tr { display: block; padding: 8px 0; border-bottom: 1px solid var(--rule); }
  td { display: block; padding: 2px 0; border: 0; }
  td:first-child { font-weight: 600; }
}

/* The site's header and footer look: the transparent knot, colored by the
   page (the symbol in privacy.html reads these custom properties). */
:root {
  --bg-sunk: #f3f3f5;
  --signal: #7a4aba;
  --kw: 7;
  --khw: 11;
  --kb: var(--fg);
  --kl: var(--signal);
  --kh: var(--bg);
  --klo: 1;
  --kda: 16 84;
  --p: 84;
}
@media (prefers-color-scheme: dark) {
  :root { --bg-sunk: #111114; --signal: #c6a2f7; }
}
.defs { position: absolute; width: 0; height: 0; overflow: hidden; }
.top, .foot {
  max-width: 640px;
  margin: 0 auto;
  padding: 0 20px;
}
.top { display: flex; align-items: center; height: 60px; border-bottom: 1px solid var(--rule); }
.top + main { padding-top: 48px; }
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--fg);
  font-weight: 600;
  font-size: 18px;
  letter-spacing: -0.01em;
  text-decoration: none;
}
.mark { display: block; width: 24px; height: 24px; }
.foot {
  max-width: none;
  padding: 28px 20px 32px;
  background: var(--bg-sunk);
  border-top: 1px solid var(--rule);
  --kh: var(--bg-sunk);
}
.foot .brand { display: flex; max-width: 600px; margin: 0 auto; font-size: 15px; }
.foot .mark { width: 20px; height: 20px; }