:root {
  --bg: #ffffff;
  --fg: #1f2328;
  --muted: #57606a;
  --accent: #2563eb;
  --border: #d0d7de;
  --code-bg: #f6f8fa;
  --maxw: 44rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1117;
    --fg: #e6edf3;
    --muted: #9198a1;
    --accent: #6ea8fe;
    --border: #30363d;
    --code-bg: #161b22;
  }
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  padding: 2.5rem 1.25rem 4rem;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
    Arial, sans-serif;
  font-size: 17px;
  line-height: 1.65;
}

main {
  max-width: var(--maxw);
  margin: 0 auto;
}

header.site-header {
  max-width: var(--maxw);
  margin: 0 auto 2.5rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border);
}

header.site-header .brand {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

header.site-header nav {
  margin-top: 0.5rem;
  font-size: 0.95rem;
}

header.site-header nav a {
  margin-right: 1.25rem;
}

h1 {
  font-size: 1.9rem;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin: 0 0 1rem;
}

h2 {
  font-size: 1.25rem;
  margin: 2.25rem 0 0.75rem;
  letter-spacing: -0.01em;
}

p {
  margin: 0 0 1rem;
}

a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

a:hover {
  text-decoration: none;
}

ul {
  padding-left: 1.35rem;
  margin: 0 0 1rem;
}

li {
  margin-bottom: 0.4rem;
}

.lead {
  font-size: 1.15rem;
  color: var(--fg);
}

.muted {
  color: var(--muted);
}

.card {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem 1.25rem;
  background: var(--code-bg);
  margin: 1.5rem 0;
}

code {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.1em 0.35em;
  font-size: 0.9em;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

footer.site-footer {
  max-width: var(--maxw);
  margin: 3.5rem auto 0;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
  font-size: 0.9rem;
  color: var(--muted);
}

footer.site-footer a {
  color: var(--muted);
}