:root {
  color-scheme: light dark;
  --bg: #fbfbfc;
  --surface: #ffffff;
  --text: #202124;
  --muted: #666a70;
  --line: #e3e5e8;
  --link: #315f9a;
}
* { box-sizing: border-box; }
html { background: var(--bg); }
body {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1.25rem 3rem;
  color: var(--text);
  background: var(--surface);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.65;
}
header, footer { color: var(--muted); }
header { margin-bottom: 3rem; }
nav { display: flex; flex-wrap: wrap; gap: .45rem 1rem; align-items: center; }
.brand { margin-right: auto; color: var(--text); font-weight: 650; }
.languages { font-size: .875rem; letter-spacing: .04em; }
main { min-height: 52vh; }
.hero { padding: 14vh 0 18vh; text-align: center; }
h1, h2 { line-height: 1.25; letter-spacing: -.02em; }
h1 { margin: 0 0 1rem; font-size: clamp(2.25rem, 8vw, 4rem); }
h2 { margin-top: 2.2rem; font-size: 1.25rem; }
p, ul { margin: .75rem 0; }
address { font-style: normal; }
a { color: var(--link); text-decoration-thickness: .08em; text-underline-offset: .18em; }
a:hover { text-decoration-thickness: .13em; }
footer { margin-top: 3rem; padding-top: 1.25rem; border-top: 1px solid var(--line); font-size: .9rem; }
footer nav { gap: .5rem 1.25rem; }
.updated { margin-top: 2.5rem; color: var(--muted); }
@media (prefers-color-scheme: dark) {
  :root { --bg: #111315; --surface: #191b1e; --text: #eeeef0; --muted: #aaaeb4; --line: #34373b; --link: #91b9ed; }
}
@media (max-width: 480px) {
  body { padding: 1.25rem 1rem 2rem; }
  header { margin-bottom: 2rem; }
  .hero { padding: 12vh 0 15vh; }
}