:root { color-scheme: light; font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; color: #142034; background: #f5f8fc; }
* { box-sizing: border-box; }
body { margin: 0; }
a { color: #126a9f; }
a:hover { color: #09496f; }
header { background: #fff; border-bottom: 1px solid #d8e2ef; padding: 16px max(20px, calc((100vw - 900px) / 2)); display: flex; flex-wrap: wrap; gap: 12px 28px; align-items: center; justify-content: space-between; }
header .brand { font-weight: 750; font-size: 1.12rem; text-decoration: none; color: #142034; }
nav { display: flex; flex-wrap: wrap; gap: 10px 20px; }
nav a { text-decoration: none; }
main { max-width: 900px; margin: 32px auto; padding: 28px 36px 40px; background: #fff; border: 1px solid #d8e2ef; border-radius: 18px; }
h1 { font-size: 2.1rem; line-height: 1.2; margin: 0 0 1rem; }
h2 { margin-top: 2.2rem; font-size: 1.35rem; line-height: 1.3; }
h3 { margin-top: 1.7rem; }
p, li { overflow-wrap: anywhere; }
li { margin: .35rem 0; }
ul, ol { padding-left: 1.5rem; }
table { display: block; max-width: 100%; overflow-x: auto; border-collapse: collapse; }
th, td { border: 1px solid #d8e2ef; padding: 9px 12px; text-align: left; }
th { background: #edf5fb; }
code { background: #edf5fb; border-radius: 4px; padding: .1em .3em; }
hr { border: 0; border-top: 1px solid #d8e2ef; margin: 2rem 0; }
footer { max-width: 900px; margin: 0 auto 40px; padding: 0 20px; color: #56657a; font-size: .9rem; }
@media (max-width: 680px) { main { margin: 16px; padding: 24px 20px 32px; } h1 { font-size: 1.75rem; } }