:root {
  --bg: #ffffff;
  --text: #1c1c1e;
  --muted: #6e6e73;
  --link: #8a5a3c;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #000000; --text: #f2f2f7; --muted: #98989f; --link: #d9a67e; }
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
main { max-width: 680px; margin: 0 auto; padding: 40px 16px 64px; }
.app { margin: 0; color: var(--muted); font-weight: 600; letter-spacing: .02em; }
h1 { font-size: 32px; line-height: 1.2; margin: 4px 0 8px; }
h2 { font-size: 21px; margin: 32px 0 8px; }
h3 { font-size: 17px; margin: 20px 0 4px; }
.date { color: var(--muted); margin-top: 0; }
ul { padding-left: 22px; }
li { margin: 4px 0; }
a { color: var(--link); }
.foot { margin-top: 40px; color: var(--muted); }