:root { color-scheme: light dark; font-family: system-ui, sans-serif; line-height: 1.65; }
body { max-width: 52rem; margin: auto; padding: 1.4rem; overflow-wrap: anywhere; }
a { color: #1759a2; text-underline-offset: .18em; }
nav { display: flex; flex-wrap: wrap; gap: .7rem 1.3rem; margin-bottom: 2rem; }
h1, h2 { line-height: 1.25; margin-top: 2rem; }
h1 { font-size: clamp(1.6rem, 4vw, 2.3rem); }
h2 { font-size: 1.35rem; }
blockquote { border-left: .15rem solid #888; margin: 1.5rem 0; padding: .1rem 1rem; }
footer { border-top: 1px solid #888; margin-top: 3rem; padding-top: 1rem; }
@media (prefers-color-scheme: dark) { a { color: #9ac7ff; } }
@media print { nav, footer { display: none; } body { max-width: none; padding: 0; } }