:root {
  color-scheme: dark;
  --bg: #090b0a;
  --surface: #111512;
  --ink: #f3f6ef;
  --muted: #9aa399;
  --line: rgba(231, 242, 228, 0.16);
  --signal: #b8ff57;
  --cyan: #42e7d0;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--ink);
}
* { box-sizing: border-box; }
html { min-width: 320px; min-height: 100%; background: var(--bg); }
body { min-height: 100vh; margin: 0; background: var(--bg); }
a { color: inherit; }
a:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }
header {
  position: sticky;
  z-index: 2;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 62px;
  padding: 10px clamp(16px, 4vw, 48px);
  border-bottom: 1px solid var(--line);
  background: rgba(9, 11, 10, 0.94);
}
.brand { color: var(--signal); font-size: 15px; font-weight: 850; text-decoration: none; }
nav { display: flex; gap: 5px; }
nav a { padding: 7px 9px; color: var(--muted); font-size: 11px; font-weight: 750; text-decoration: none; }
nav a:hover { color: var(--ink); }
main { width: min(760px, calc(100% - 32px)); margin: 0 auto; padding: clamp(48px, 8vw, 92px) 0 80px; }
.eyebrow { margin: 0 0 12px; color: var(--signal); font: 750 10px/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: 0; }
h1 { max-width: 680px; margin: 0; font-size: clamp(40px, 7vw, 68px); line-height: 1; letter-spacing: 0; }
.lede { max-width: 680px; margin: 24px 0 54px; color: var(--muted); font-size: 17px; line-height: 1.65; }
section { padding: 25px 0; border-top: 1px solid var(--line); }
section h2 { margin: 0 0 10px; font-size: 18px; letter-spacing: 0; }
section p { margin: 8px 0 0; color: var(--muted); font-size: 14px; line-height: 1.7; }
code { padding: 2px 5px; border: 1px solid var(--line); border-radius: 4px; color: var(--cyan); background: var(--surface); font-size: 0.9em; overflow-wrap: anywhere; }
footer { display: flex; justify-content: space-between; gap: 20px; padding: 20px clamp(16px, 4vw, 48px); border-top: 1px solid var(--line); color: var(--muted); font: 650 10px/1.3 ui-monospace, SFMono-Regular, Menlo, monospace; }
footer a { color: var(--signal); }
@media (max-width: 520px) {
  header { align-items: start; }
  nav { display: grid; grid-template-columns: repeat(3, auto); }
  nav a { padding: 4px 6px; font-size: 9px; }
  footer { display: grid; }
}