:root {
  color-scheme: dark;
  --ink: #0a0a0b;
  --paper: #f5f5f6;
  --muted: #a1a1aa;
  --line: #2a2a2e;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  background: var(--ink);
  color: var(--paper);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
main {
  max-width: 32rem;
  margin: 0 auto;
  padding: 18vh 24px 64px;
}
.mark {
  width: 56px;
  height: 56px;
  border: 1px solid #e7e7ea;
  border-radius: 16px;
  display: grid;
  place-items: center;
  font-family: Georgia, serif;
  font-size: 24px;
}
.eyebrow {
  margin: 28px 0 8px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 12px;
  color: var(--muted);
}
h1 {
  font-weight: 560;
  font-size: 40px;
  letter-spacing: -0.03em;
  margin: 0 0 16px;
}
.lede, p { color: #c6c6cc; line-height: 1.5; }
.code {
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.18em;
  font-size: 28px;
  color: var(--paper);
}
.button {
  display: inline-block;
  margin-top: 12px;
  background: var(--paper);
  color: var(--ink);
  text-decoration: none;
  padding: 14px 18px;
  border-radius: 12px;
  font-weight: 600;
}
a { color: var(--paper); }