:root {
  --bg: #fafaf7;
  --fg: #1a1a1a;
  --muted: #666;
  --accent: #4a4a4a;
  --rule: #e5e5e0;
  --max-width: 720px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111111;
    --fg: #f0f0ec;
    --muted: #9a9a96;
    --accent: #d0d0cc;
    --rule: #2a2a28;
  }
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: ui-serif, "New York", "Iowan Old Style", "Apple Garamond", Georgia, serif;
  font-size: 18px;
  line-height: 1.65;
  color: var(--fg);
  background: var(--bg);
  padding: 48px 24px 96px;
}

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

header.site {
  max-width: var(--max-width);
  margin: 0 auto 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 14px;
}

header.site a { color: var(--muted); text-decoration: none; margin-left: 16px; }
header.site a:hover { color: var(--fg); }
header.site .brand { font-weight: 600; color: var(--fg); margin-left: 0; }

h1 {
  font-size: 36px;
  line-height: 1.2;
  margin: 0 0 8px;
  letter-spacing: -0.01em;
}

h2 {
  font-size: 22px;
  margin: 40px 0 12px;
  letter-spacing: -0.005em;
}

h3 { font-size: 18px; margin: 28px 0 8px; }

p, ul, ol { margin: 0 0 16px; }

ul, ol { padding-left: 22px; }

li { margin-bottom: 6px; }

a { color: var(--fg); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--accent); }

.lede {
  font-size: 20px;
  color: var(--muted);
  margin-bottom: 32px;
}

.meta {
  font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 13px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 32px;
}

hr { border: none; border-top: 1px solid var(--rule); margin: 48px 0; }

footer {
  max-width: var(--max-width);
  margin: 64px auto 0;
  padding-top: 24px;
  border-top: 1px solid var(--rule);
  font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 13px;
  color: var(--muted);
}

footer a { color: var(--muted); margin-right: 16px; }

code, pre { font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: 0.9em; }

.button {
  display: inline-block;
  padding: 10px 18px;
  background: var(--fg);
  color: var(--bg);
  border-radius: 8px;
  text-decoration: none;
  font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 15px;
  font-weight: 500;
}

.button:hover { color: var(--bg); opacity: 0.85; }