:root {
  --paper: #F7F4EE; --surface: #FFFDF9; --ink: #17201A; --graphite: #4B5560;
  --rule: #D8D2C7; --accent: #244C5A; --focus: #D9A441;
  --sans: -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  --serif: ui-serif, "New York", "Iowan Old Style", Georgia, serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root { --paper: #161513; --surface: #211F1C; --ink: #EEE9DF; --graphite: #B4AEA3; --rule: #34322D; --accent: #8FBCCB; color-scheme: dark; }
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--paper); color: var(--ink); font: 17px/1.6 var(--sans); }
main { max-width: 680px; margin: 0 auto; padding: 48px 20px 64px; display: flex; flex-direction: column; gap: 28px; }
header { display: flex; align-items: center; gap: 14px; }
header img { width: 44px; height: 44px; }
header a { color: inherit; text-decoration: none; font-weight: 700; font-size: 20px; }
h1 { font-size: 36px; line-height: 1.15; margin: 0; text-wrap: balance; }
h2 { font-size: 21px; margin: 0 0 6px; }
p, ul { margin: 0; }
ul { padding-left: 22px; display: flex; flex-direction: column; gap: 6px; }
section { display: flex; flex-direction: column; gap: 8px; }
a { color: var(--accent); font-weight: 600; }
a:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
.lede { font-family: var(--serif); font-size: 24px; line-height: 1.4; }
.muted { color: var(--graphite); }
.rail { border-left: 4px solid var(--accent); padding: 4px 0 4px 18px; }
footer { border-top: 1px solid var(--rule); padding-top: 20px; font-size: 14px; color: var(--graphite); display: flex; flex-direction: column; gap: 8px; }
footer nav { display: flex; gap: 18px; }