:root { color-scheme: light; font-family: "Segoe UI", "Malgun Gothic", sans-serif; color: #223247; background: #f6f7f9; }
* { box-sizing: border-box; }
body { margin: 0; line-height: 1.8; }
a { color: #2456a6; text-underline-offset: .22em; }
a:focus-visible { outline: 3px solid #e2a948; outline-offset: 4px; }
header, main, footer { width: min(880px, calc(100% - 40px)); margin-inline: auto; }
header { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding-block: 26px; border-bottom: 1px solid #dce2ea; }
.brand { color: #17263a; font-weight: 750; text-decoration: none; letter-spacing: -.025em; }
nav { display: flex; flex-wrap: wrap; gap: 18px; font-size: .88rem; }
nav a[aria-current="page"] { color: #17263a; font-weight: 700; }
main { padding-block: 52px 64px; }
.eyebrow { color: #526783; font-size: .8rem; font-weight: 700; letter-spacing: .12em; }
h1 { margin: 10px 0 18px; color: #17263a; font-size: clamp(2rem, 6vw, 3rem); line-height: 1.3; letter-spacing: -.045em; }
h2 { margin: 32px 0 10px; color: #17263a; font-size: 1.15rem; }
p { margin: 0 0 16px; }
.lead { max-width: 690px; color: #4a5a70; font-size: 1.1rem; }
.card { margin-top: 32px; padding: 24px 28px; border: 1px solid #dce2ea; border-radius: 14px; background: #fff; }
.card h2:first-child { margin-top: 0; }
ul, ol { padding-left: 24px; }
li { padding-left: 3px; margin-bottom: 8px; }
.meta { color: #637086; font-size: .88rem; }
code { overflow-wrap: anywhere; font-size: .9em; }
footer { padding-block: 22px 32px; border-top: 1px solid #dce2ea; font-size: .85rem; color: #637086; }
@media(max-width: 620px) { header { align-items: flex-start; flex-direction: column; gap: 10px; } main { padding-top: 32px; } .card { padding: 20px; } }