:root {
  color-scheme: light dark;
  --bg: #f1f5f9;
  --surface: #ffffff;
  --text: #0f172a;
  --muted: #475569;
  --border: #cbd5e1;
  --accent: #6d28d9;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b0f14;
    --surface: #121722;
    --text: #f8fafc;
    --muted: #94a3b8;
    --border: #334155;
    --accent: #a78bfa;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
header, main, footer { max-width: 760px; margin: 0 auto; padding: 0 16px; }
header {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 8px; padding-top: 16px; padding-bottom: 16px;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  color: var(--text); font-weight: 700; font-size: 20px; text-decoration: none;
}
.brand img { border-radius: 8px; }
.languages { font-size: 15px; color: var(--muted); }
main {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 12px; padding: 8px 24px 24px;
}
h1 { font-size: 30px; line-height: 1.2; }
h2 { font-size: 21px; margin-top: 32px; }
a { color: var(--accent); }
li { margin: 6px 0; }
.hero { text-align: center; padding-top: 24px; }
.hero img { border-radius: 20px; }
.hero h1 { margin: 12px 0 4px; }
.tagline { color: var(--muted); font-size: 19px; }
footer { color: var(--muted); font-size: 15px; padding-top: 16px; padding-bottom: 32px; }
footer nav { display: flex; flex-wrap: wrap; gap: 8px 20px; }
footer a[aria-current] { color: var(--text); text-decoration: none; }
@media (max-width: 520px) {
  main { padding: 4px 16px 16px; border-radius: 0; border-left: 0; border-right: 0; }
  header, footer { padding-left: 16px; padding-right: 16px; }
  main { margin: 0; }
  h1 { font-size: 26px; }
}