:root { color-scheme: light dark; --ink: #2b2620; --muted: #7a7064; --paper: #f7f3ea; --line: #ddd3c2; --accent: #b4442f; }
@media (prefers-color-scheme: dark) { :root { --ink: #ece6da; --muted: #a49a8c; --paper: #1d1b18; --line: #3a352e; --accent: #e07a5f; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--paper); color: var(--ink);
  font: 16px/1.75 -apple-system, BlinkMacSystemFont, "PingFang SC", "Helvetica Neue", sans-serif; }
main { max-width: 680px; margin: 0 auto; padding: 48px 22px 80px; }
h1 { font-size: 26px; margin: 0 0 4px; letter-spacing: .02em; }
h2 { font-size: 18px; margin: 32px 0 8px; padding-top: 12px; border-top: 1px dashed var(--line); }
.meta { color: var(--muted); font-size: 14px; margin: 0 0 24px; }
.lead { font-size: 17px; }
a { color: var(--accent); }
ul { padding-left: 1.2em; }
li { margin: 4px 0; }
hr { border: 0; border-top: 1px solid var(--line); margin: 48px 0 0; }