:root { color-scheme: light dark; font-family: system-ui, sans-serif; line-height: 1.6; }
body { max-width: 46rem; margin: 0 auto; padding: 2.5rem 1.25rem; }
header, footer { border-bottom: 1px solid #8886; padding-bottom: 1rem; }
footer { border-top: 1px solid #8886; border-bottom: 0; margin-top: 3rem; padding-top: 1rem; }
nav a { margin-right: 1.25rem; }
h1 { line-height: 1.2; }
a { color: #2264bd; }
@media (prefers-color-scheme: dark) { a { color: #8ab9ff; } }