:root {
  color-scheme: light dark;
  --background: #f7f8fa;
  --surface: #fff;
  --text: #20262e;
  --muted: #535e6d;
  --line: #dce2e8;
  --link: #1558a6;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font: 1rem/1.7 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
header, main, footer { width: min(100% - 2rem, 50rem); margin-inline: auto; }
header { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1rem; padding-block: 1.5rem; }
.brand { color: var(--text); font-size: 1.25rem; font-weight: 750; text-decoration: none; }
nav { display: flex; gap: .5rem; }
nav a { padding: .5rem .75rem; border-radius: .6rem; }
nav a[aria-current] { background: var(--surface); font-weight: 650; text-decoration-thickness: .15em; }
article { padding: clamp(1.25rem, 4vw, 3rem); background: var(--surface); border: 1px solid var(--line); border-radius: 1.25rem; }
h1 { font-size: clamp(1.9rem, 5vw, 2.6rem); line-height: 1.15; margin: 0 0 1.5rem; letter-spacing: -.035em; }
h2 { font-size: 1.25rem; line-height: 1.4; margin: 2rem 0 .65rem; }
p { margin: .85rem 0; }
ul { padding-left: 1.3rem; }
li { margin-block: .45rem; }
a { color: var(--link); text-underline-offset: .2em; overflow-wrap: anywhere; }
a:focus-visible { outline: 3px solid var(--link); outline-offset: 4px; }
.draft { padding: 1rem 1.25rem; margin-bottom: 1rem; border: 2px solid #b37518; border-radius: .75rem; }
footer { padding-block: 1.5rem 2.5rem; color: var(--muted); }
@media (prefers-color-scheme: dark) {
  :root { --background: #10151b; --surface: #19212b; --text: #edf1f7; --muted: #b5c0ce; --line: #354253; --link: #96c4ff; }
}
@media print {
  header, footer, .draft { display: none; }
  main { width: 100%; }
  article { border: 0; padding: 0; }
  body { background: white; color: black; font-size: 10pt; }
  h2 { break-after: avoid; }
}