:root { color-scheme: light; font-family: system-ui, -apple-system, "Segoe UI", sans-serif; color: #17333c; background: #f3f7f8; line-height: 1.65; }
* { box-sizing: border-box; }
body { margin: 0; }
header, main, footer { max-width: 960px; margin: auto; padding: 28px 32px; }
header, footer { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
header { border-bottom: 1px solid #cbdcdd; }
main { background: #fff; border: 1px solid #e1eaeb; border-radius: 20px; margin: 26px auto; padding: 40px 48px; }
.brand { font-weight: 750; font-size: 20px; text-decoration: none; color: #183942; }
.brand span { color: #006c66; font-size: 13px; letter-spacing: .1em; margin-left: 8px; }
.eyebrow { color: #526c73; text-transform: uppercase; font-size: 12px; letter-spacing: .08em; font-weight: 700; }
h1 { line-height: 1.15; font-size: clamp(32px, 5vw, 46px); margin: 16px 0 24px; letter-spacing: -.035em; }
h2 { font-size: 22px; line-height: 1.35; margin-top: 30px; }
.lead { font-size: 19px; color: #415f68; }
a { color: #006b67; text-underline-offset: 3px; overflow-wrap: anywhere; }
a:focus-visible { outline: 3px solid #006b67; outline-offset: 4px; }
li { margin-bottom: 10px; }
code { background: #edf5f4; padding: 2px 5px; border-radius: 4px; overflow-wrap: anywhere; }
.button { display: inline-block; background: #006b67; color: white; border-radius: 9px; padding: 10px 20px; margin-top: 14px; text-decoration: none; font-weight: 650; }
footer { color: #526c73; font-size: 14px; }
@media (max-width: 640px) { header, footer { padding: 20px; } main { margin: 16px 12px; padding: 25px 22px; } }