:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --fg: #1d1f23;
  --muted: #5b616b;
  --line: #d9dce1;
  --link: #0a58ca;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #15171a;
    --fg: #e8eaed;
    --muted: #a3a9b3;
    --line: #33373d;
    --link: #8ab4ff;
  }
}

* { box-sizing: border-box; }

html { background: var(--bg); color: var(--fg); }

body {
  margin: 0 auto;
  max-width: 46rem;
  padding: 0 1rem 3rem;
  font: 1rem/1.6 "Segoe UI", system-ui, -apple-system, sans-serif;
}

a { color: var(--link); }

header.site {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  align-items: baseline;
  justify-content: space-between;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--line);
}

header.site .brand { font-weight: 600; font-size: 1.15rem; color: var(--fg); text-decoration: none; }
header.site nav { display: flex; gap: 1rem; }

h1 { font-size: 1.9rem; line-height: 1.25; margin: 2rem 0 0.5rem; }
h2 { font-size: 1.3rem; margin: 2rem 0 0.5rem; }
h3 { font-size: 1.05rem; margin: 1.5rem 0 0.25rem; }

.lead { font-size: 1.15rem; color: var(--muted); }
.meta { color: var(--muted); margin-top: 0; }
.store { margin: 1.5rem 0; }

ul { padding-left: 1.25rem; }
li { margin: 0.35rem 0; }
ul.links { list-style: none; padding: 0; }

footer.site {
  margin-top: 3rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
}