:root {
  color-scheme: light;
  --ink: #14213d;
  --brand: #1f6feb;
}
body {
  margin: 0 auto;
  padding: 24px 20px 48px;
  max-width: 720px;
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: #fff;
}
header {
  display: flex;
  align-items: center;
  gap: 12px;
}
h1 {
  font-size: 24px;
  margin: 0;
}
nav {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin: 20px 0;
  padding: 12px 0;
  border-block: 1px solid #e4e8ef;
}
a {
  color: var(--brand);
}
footer {
  margin-top: 40px;
  color: #6b7280;
  font-size: 14px;
}