:root { color-scheme: light; font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; color: #18212c; background: #fff; font-size: 16px; }
* { box-sizing: border-box; }
body { margin: 0; line-height: 1.7; }
main, footer { width: min(100% - 3rem, 46rem); margin: auto; }
main { padding: 3.5rem 0 2rem; }
h1 { font-size: 2rem; line-height: 1.25; letter-spacing: -.025em; margin: 0 0 1.5rem; }
h2 { font-size: 1.2rem; line-height: 1.4; margin: 2rem 0 .5rem; }
p, ul { margin: .7rem 0 1.2rem; }
li { padding-left: .2rem; margin: .3rem 0; }
a { color: #174f9a; text-underline-offset: .2em; }
a:focus-visible { outline: 2px solid #174f9a; outline-offset: 4px; }
nav { display: flex; flex-wrap: wrap; gap: .6rem 1.5rem; }
footer { padding: 1.5rem 0 2.5rem; border-top: 1px solid #dce1e7; }
.updated { color: #525d6b; font-size: .9rem; }
@media (max-width: 480px) { main, footer { width: calc(100% - 2rem); } main { padding-top: 2rem; } h1 { font-size: 1.75rem; } }