:root {
  color: #101010;
  background: #d5eaff;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
}

* { box-sizing: border-box; }

body { margin: 0; }

main {
  width: min(100% - 32px, 760px);
  margin: 0 auto;
  padding: 48px 0 64px;
}

header, section, footer {
  border-top: 3px solid #101010;
  padding: 22px 0;
}

header { border-top: 0; padding-top: 0; }

h1, h2, p { margin: 0; }
h1 { font-size: clamp(2rem, 7vw, 3.3rem); line-height: 1.1; }
h2 { font-size: 1.25rem; margin-bottom: 10px; }
p + p { margin-top: 12px; }

.brand, .updated, footer { font-size: 0.9rem; }
.brand { font-weight: 700; margin-bottom: 16px; }
.updated { color: #4f5964; margin-top: 12px; }
a { color: inherit; font-weight: 700; text-underline-offset: 3px; }
ul { margin: 10px 0 0; padding-left: 20px; }

@media (prefers-color-scheme: dark) {
  :root { color: #f6f6f6; background: #17212a; }
  .updated { color: #c4ccd4; }
}