:root { color-scheme: light; --ink: #101010; --muted: #777773; --line: #e2e2de; --soft: #f7f7f5; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: #fff; font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; -webkit-font-smoothing: antialiased; }
a { color: inherit; }
.topbar { width: min(calc(100% - 44px), 1180px); min-height: 78px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); }
.wordmark { font-size: 18px; font-weight: 650; letter-spacing: -.03em; text-decoration: none; }
.wordmark span { color: var(--muted); font-weight: 450; }
.back { color: var(--muted); font-size: 12px; text-decoration: none; }
.back:hover { color: var(--ink); }
main { width: min(calc(100% - 44px), 820px); margin: 0 auto; padding: clamp(70px, 10vw, 130px) 0 110px; }
.eyebrow { margin: 0 0 19px; color: var(--muted); font-size: 11px; }
h1 { max-width: 760px; margin: 0; font-size: clamp(44px, 7vw, 76px); line-height: .98; font-weight: 540; letter-spacing: -.055em; }
.revision { margin: 25px 0 0; color: var(--muted); font-size: 13px; }
.lead { margin: 70px 0 80px; padding: 28px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); font-size: 17px; line-height: 1.65; }
section { padding: 42px 0; border-top: 1px solid var(--line); }
section:first-of-type { border-top: 0; }
h2 { margin: 0 0 27px; font-size: 25px; line-height: 1.15; font-weight: 570; letter-spacing: -.035em; }
p { margin: 0 0 14px; font-size: 15px; line-height: 1.68; }
p:last-child { margin-bottom: 0; }
.details strong { font-weight: 600; }
footer { min-height: 78px; padding: 0 22px; display: flex; align-items: center; justify-content: center; border-top: 1px solid var(--line); color: var(--muted); font-size: 10px; }
@media (max-width: 620px) {
  .topbar { min-height: 62px; }
  main { padding-top: 70px; }
  h1 { font-size: 45px; }
  .lead { margin: 52px 0 58px; font-size: 16px; }
  section { padding: 34px 0; }
  h2 { font-size: 23px; }
  p { font-size: 14px; }
}