:root { color-scheme: light; font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; color: #172237; background: #fff; line-height: 1.65; }
* { box-sizing: border-box; }
body { margin: 0; border-top: 5px solid #17438c; }
.page-header, main, footer { width: min(48rem, 100%); margin-inline: auto; padding-inline: clamp(1.25rem, 5vw, 3rem); }
.page-header { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: .5rem 1.5rem; padding-block: 1.5rem; border-bottom: 1px solid #d9dfea; }
.brand { font-size: 1.2rem; font-weight: 750; text-decoration: none; }
nav a { display: inline-block; padding-block: .5rem; }
main { padding-block: clamp(2rem, 5vw, 3.5rem); }
h1, h2 { line-height: 1.2; color: #142647; }
h1 { font-size: clamp(2rem, 6vw, 2.8rem); letter-spacing: -.035em; margin: .5rem 0 1.25rem; }
h2 { font-size: 1.3rem; margin: 0 0 .75rem; }
p { margin: 0 0 1rem; }
.eyebrow { color: #17438c; font-size: .875rem; font-weight: 700; margin-bottom: .5rem; }
.intro { font-size: 1.125rem; line-height: 1.7; }
.updated { color: #536078; font-size: .875rem; }
section { margin-top: 2.25rem; }
ol { padding-left: 1.5rem; }
li { padding-left: .25rem; margin-block: .75rem; }
a { color: #17438c; text-underline-offset: .2em; overflow-wrap: anywhere; }
a:hover { color: #0b2b62; }
a:focus-visible { outline: 3px solid #17438c; outline-offset: 4px; border-radius: 2px; }
code { font-size: .95em; overflow-wrap: anywhere; }
footer { color: #536078; padding-block: 1.5rem; border-top: 1px solid #d9dfea; font-size: .875rem; }
footer p { margin: 0; }
.skip { position: absolute; top: .5rem; left: 1rem; padding: .5rem 1rem; background: #fff; transform: translateY(-180%); }
.skip:focus { transform: translateY(0); }
@media print { body { border: 0; } .page-header, footer, .skip { display: none; } main { width: 100%; padding: 0; } h2 { break-after: avoid; } }