:root {
  color-scheme: light dark;
  --colour-text: #222;
  --colour-text-muted: #666;
  --colour-background: #fff;
  --colour-border: #e0e0e0;
  --colour-link: #0066cc;
  --colour-code-background: #f3f4f6;
}

@media (prefers-color-scheme: dark) {
  :root {
    --colour-text: #e0e0e0;
    --colour-text-muted: #999;
    --colour-background: #1a1a1a;
    --colour-border: #333;
    --colour-link: #4da6ff;
    --colour-code-background: #2a2a2a;
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial,
    sans-serif;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--colour-text);
  background: var(--colour-background);
  margin: 0;
  padding: 0 1rem;
}

header,
main,
footer {
  max-width: 700px;
  margin: 0 auto;
}

header {
  padding: 1.5rem 0 1rem;
  border-bottom: 1px solid var(--colour-border);
  margin-bottom: 2rem;
}

header nav a {
  font-weight: 600;
  font-size: 1.1rem;
  text-decoration: none;
  color: var(--colour-text);
}

footer {
  margin-top: 3rem;
  padding: 1.5rem 0;
  border-top: 1px solid var(--colour-border);
  font-size: 0.875rem;
  color: var(--colour-text-muted);
}

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

a:hover {
  text-decoration: none;
}

article {
  margin-bottom: 2.5rem;
}

article h1,
article h2 {
  margin-bottom: 0.25rem;
}

article h2 a {
  text-decoration: none;
  color: var(--colour-text);
}

article h2 a:hover {
  color: var(--colour-link);
}

time {
  font-size: 0.875rem;
  color: var(--colour-text-muted);
}

/* Inline code */
code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.875em;
  background: var(--colour-code-background);
  padding: 0.15em 0.35em;
  border-radius: 3px;
  border: 1px solid var(--colour-border);
}

/* Fenced code blocks */
pre {
  background: var(--colour-code-background);
  border: 1px solid var(--colour-border);
  border-radius: 4px;
  padding: 1rem 1.25rem;
  overflow-x: auto;
  line-height: 1.5;
}

pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 0.875rem;
  border-radius: 0;
}