:root { color-scheme: light; font-family: system-ui, -apple-system, "Segoe UI", sans-serif; color: #172332; background: #fff; }
* { box-sizing: border-box; }
body { margin: 0; font-size: 1rem; line-height: 1.7; }
header, main, footer { width: min(100% - 3rem, 960px); margin-inline: auto; }
header { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; padding-block: 1.5rem; border-bottom: 1px solid #dce3ea; }
a { color: #225bb0; text-underline-offset: .22em; overflow-wrap: anywhere; }
a:hover { color: #143b77; }
a:focus-visible { outline: 3px solid #225bb0; outline-offset: 5px; border-radius: 2px; }
.brand { color: #172332; font-size: 1.2rem; font-weight: 700; text-decoration: none; }
nav { display: flex; flex-wrap: wrap; gap: 1.25rem; font-size: .9rem; }
nav a { color: #455366; }
nav [aria-current] { color: #172332; font-weight: 600; }
main { padding-block: 4.5rem; max-width: 760px; }
.eyebrow { color: #455366; font-size: .875rem; margin: 0 0 1rem; }
h1 { font-size: clamp(2rem, 5vw, 3.4rem); line-height: 1.15; letter-spacing: -.035em; margin: 0 0 1.5rem; overflow-wrap: anywhere; }
.intro { font-size: 1.2rem; line-height: 1.65; color: #455366; margin-bottom: 2.5rem; }
section { margin-top: 2rem; }
h2 { font-size: 1.15rem; line-height: 1.4; margin: 0 0 .6rem; }
p { margin: .65rem 0; }
code { font-size: .9em; overflow-wrap: anywhere; }
.document h1 { font-size: clamp(2rem, 5vw, 2.8rem); }
footer { display: flex; flex-wrap: wrap; gap: .75rem 1.5rem; border-top: 1px solid #dce3ea; padding-block: 1.5rem 2rem; font-size: .875rem; color: #455366; }
@media (max-width: 600px) { header { align-items: flex-start; flex-direction: column; gap: .7rem; } main { padding-block: 2.5rem; } header, main, footer { width: calc(100% - 2rem); } }