/* odolo.app: plain pages in the app's sign direction (odolo/docs/design/direction.md). One sign
   colour, flat, with a white keyline; system fonts; light and dark follow the visitor's system. */

:root {
  --sign: #005aa8;
  --on-sign: #ffffff;
  --accent: #005aa8;
  --bg: #ffffff;
  --text: #111111;
  --text-2: #5a5f66;
  --rule: #d9dde2;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --sign-font: "SF Pro Display", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --wrap: 680px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --accent: #3a8ad6;
    --bg: #000000;
    --text: #f2f2f7;
    --text-2: #a1a6ad;
    --rule: #2c2f33;
  }
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font: 400 17px/1.55 var(--font);
}
a { color: var(--accent); }
a:hover { text-decoration-thickness: 2px; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 20px; }

/* The header: the name on a sign, as on a motorway. */
.top { padding: 28px 0 0; }
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  color: var(--text); text-decoration: none; font-weight: 600; font-size: 19px;
}
.brand img { border-radius: 9px; }

/* A sign: the panel, a white keyline inset, condensed capitals. */
.sign {
  background: var(--sign);
  color: var(--on-sign);
  border-radius: 16px;
  padding: 6px;
  margin: 32px 0 28px;
}
.sign-inner {
  border: 2px solid var(--on-sign);
  border-radius: 11px;
  padding: 26px 24px 24px;
}
.sign h1 {
  font: 600 40px/1.05 var(--sign-font);
  font-stretch: condensed;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.sign p { margin-top: 10px; font-size: 19px; line-height: 1.4; }

main h1.page { font-size: 30px; line-height: 1.2; margin: 32px 0 20px; }
main h2 { font-size: 20px; line-height: 1.3; margin: 30px 0 8px; }
main p { margin: 0 0 14px; }
main ul { margin: 0 0 14px 1.2em; }
main li { margin: 0 0 8px; }
.lead { font-size: 19px; }
.note { color: var(--text-2); }

footer {
  margin: 48px 0 0;
  padding: 20px 0 36px;
  border-top: 1px solid var(--rule);
  color: var(--text-2);
  font-size: 15px;
}
footer nav { display: flex; gap: 20px; flex-wrap: wrap; margin-bottom: 8px; }