:root {
  --bg: #f4f1ea;
  --ink: #1c1917;
  --accent: #0f3d2e;
  --muted: #57534e;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  background:
    radial-gradient(1200px 600px at 10% -10%, #e7e0d2 0%, transparent 60%),
    var(--bg);
  color: var(--ink);
  line-height: 1.55;
}
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 2rem;
  border-bottom: 1px solid #d6d3d1;
}
.brand { font-weight: 700; letter-spacing: 0.04em; color: var(--accent); }
nav a { margin-left: 1rem; color: var(--muted); text-decoration: none; }
main { max-width: 720px; margin: 0 auto; padding: 3rem 1.5rem 4rem; }
.hero h1 { font-size: clamp(2.5rem, 6vw, 4rem); margin: 0 0 0.5rem; color: var(--accent); }
.lead { font-size: 1.25rem; }
.sub { color: var(--muted); }
.code {
  background: #1c1917;
  color: #f5f5f4;
  padding: 1rem 1.25rem;
  overflow: auto;
  font-family: "Cascadia Mono", Consolas, monospace;
  font-size: 0.9rem;
}