:root {
  --ink: #16181c;
  --bg: #f7f5f1;
  --accent: #0f6b4c;
  --muted: #5c636c;
  --line: #ddd6c8;
  --display: "Fraunces", Georgia, serif;
  --sans: "IBM Plex Sans", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background:
    linear-gradient(180deg, #ebe6db 0%, var(--bg) 28%);
  min-height: 100vh;
}
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem clamp(1rem, 4vw, 2.5rem);
  border-bottom: 1px solid var(--line);
}
.brand {
  font-family: var(--display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
}
.brand span { color: var(--accent); font-weight: 500; }
header a:last-child { color: var(--accent); font-weight: 600; text-decoration: none; }
main {
  max-width: 42rem;
  padding: 2.5rem clamp(1rem, 4vw, 2.5rem) 4rem;
}
h1 {
  font-family: var(--display);
  font-size: clamp(2rem, 5vw, 2.75rem);
  letter-spacing: -0.03em;
  margin: 0 0 0.75rem;
}
.lede { color: var(--muted); line-height: 1.55; }
section { margin-top: 2.25rem; }
h2 {
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 0.75rem;
}
pre {
  font-family: var(--mono);
  font-size: 0.82rem;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 1rem;
  overflow: auto;
  line-height: 1.45;
}
ul { padding-left: 1.1rem; line-height: 1.7; }
a { color: var(--accent); }
code {
  font-family: var(--mono);
  font-size: 0.88em;
  background: #fff;
  padding: 0.1em 0.35em;
  border-radius: 4px;
  border: 1px solid var(--line);
}