:root {
  color-scheme: light dark;
  --bg: #fbfaf8;
  --text: #17181c;
  --muted: #5d616b;
  --rule: #e4e1db;
  --accent: #2f4b8f;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101216;
    --text: #eceae6;
    --muted: #9a9ea8;
    --rule: #262a32;
    --accent: #9db4ee;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

main,
footer {
  width: 100%;
  max-width: 640px;
  margin: 0 auto;
  padding: 0 24px;
}

main {
  flex: 1;
  padding-top: 14vh;
}

.mark {
  width: 36px;
  height: 36px;
  color: var(--accent);
}

h1 {
  margin: 20px 0 12px;
  font-size: clamp(2rem, 6vw, 2.75rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.lede {
  margin: 0;
  font-size: 1.2rem;
  color: var(--muted);
  text-wrap: pretty;
}

section {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--rule);
}

h2 {
  margin: 0 0 8px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

section p {
  margin: 0;
}

a {
  color: var(--accent);
  text-underline-offset: 3px;
}

footer {
  padding-top: 64px;
  padding-bottom: 32px;
  font-size: 0.85rem;
  color: var(--muted);
}

footer p {
  margin: 0;
}