:root {
  --bg: #f6f4ef;
  --fg: #1d1c1a;
  --muted: #5f5b53;
  --line: #d9d4c8;
  --accent: #b4441f;
  --max: 42rem;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #151412;
    --fg: #ece8df;
    --muted: #a39d91;
    --line: #34312c;
    --accent: #e0774f;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 17px/1.6 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
.wrap { max-width: var(--max); margin: 0 auto; padding: 3rem 1rem 4rem; }
header { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; flex-wrap: wrap;
  border-bottom: 1px solid var(--line); padding-bottom: 1rem; margin-bottom: 2.5rem; }
.brand { font-weight: 700; letter-spacing: -0.01em; text-decoration: none; color: var(--fg); font-size: 1.1rem; }
.brand span { color: var(--accent); }
nav a { color: var(--muted); text-decoration: none; margin-left: 1rem; font-size: 0.95rem; }
nav a:first-child { margin-left: 0; }
nav a:hover, nav a[aria-current="page"] { color: var(--fg); }
h1 { font-size: clamp(2rem, 6vw, 3rem); line-height: 1.1; letter-spacing: -0.02em; margin: 0 0 1rem; }
h2 { font-size: 1.15rem; margin: 2.2rem 0 0.5rem; }
p, li { color: var(--fg); }
.lead { font-size: 1.2rem; color: var(--muted); max-width: 34rem; }
.muted { color: var(--muted); font-size: 0.92rem; }
a { color: var(--accent); }
ul { padding-left: 1.2rem; }
code { font: 0.9em ui-monospace, "Cascadia Code", Consolas, monospace; background: var(--line); padding: 0.05em 0.3em; border-radius: 3px; overflow-wrap: anywhere; }
.todo { background: #ffe08a; color: #1d1c1a; padding: 0 0.25em; border-radius: 3px; }
footer { margin-top: 4rem; padding-top: 1rem; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.9rem;
  display: flex; gap: 1rem; flex-wrap: wrap; }
footer a { color: var(--muted); }