:root { color-scheme: light; font-family: system-ui, -apple-system, "Segoe UI", sans-serif; color: #16283d; background: #f3f6fa; }
* { box-sizing: border-box; }
body { margin: 0; padding: 40px 20px; }
main { max-width: 780px; margin: 0 auto; padding: 44px; background: #fff; border: 1px solid #dce4ee; border-radius: 20px; }
h1 { margin: 24px 0 12px; font-size: clamp(1.65rem, 5vw, 2.25rem); line-height: 1.2; overflow-wrap: anywhere; }
p { line-height: 1.75; overflow-wrap: anywhere; }
a { color: #174cad; text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: #0a2866; }
a:focus-visible { outline: 3px solid #a7cbff; outline-offset: 5px; border-radius: 3px; }
.brand { font-weight: 750; font-size: 1.25rem; color: #16283d; text-decoration: none; }
.version { color: #596b80; margin-bottom: 28px; }
nav { border-top: 1px solid #dce4ee; margin-top: 32px; padding-top: 24px; display: flex; flex-wrap: wrap; gap: 18px; line-height: 1.6; }
@media (max-width: 520px) { body { padding: 14px 10px; } main { padding: 24px 20px; border-radius: 14px; } nav { flex-direction: column; } }