* { box-sizing: border-box; }
html { color-scheme: light; background: #f4f6f8; }
body { margin: 0; color: #172a3a; font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; font-size: 17px; line-height: 1.65; }
main { max-width: 780px; margin: 40px auto; padding: 40px 48px; background: #fff; border: 1px solid #dde4eb; border-radius: 12px; }
h1 { margin: 0 0 12px; font-size: 2rem; line-height: 1.2; letter-spacing: -0.025em; }
h2 { margin: 32px 0 8px; font-size: 1.2rem; line-height: 1.35; }
p { margin: 0 0 20px; }
p:last-child { margin-bottom: 0; }
.subtitle { color: #516474; font-size: 1.15rem; }
a { color: #135e96; text-underline-offset: 3px; overflow-wrap: anywhere; }
a:hover { color: #07395e; }
a:focus-visible { outline: 3px solid #e1ab24; outline-offset: 3px; }
@media (max-width: 600px) { main { margin: 0; padding: 28px 22px; border: 0; border-radius: 0; } h1 { font-size: 1.8rem; } }