body { margin: 0; font-family: Segoe UI, system-ui, -apple-system, Arial, sans-serif; font-size: 17px; line-height: 1.6; color: #1d2330; background: #ffffff; }
header, main, footer { padding: 0 24px; }
header { display: flex; justify-content: space-between; align-items: center; padding-top: 18px; padding-bottom: 18px; border-bottom: 1px solid #e3e6ec; }
.brand { font-weight: 700; font-size: 20px; color: #c4302b; text-decoration: none; }
nav a { margin-left: 18px; color: #1d2330; text-decoration: none; }
nav a:hover { text-decoration: underline; }
main { max-width: 860px; padding-top: 24px; padding-bottom: 40px; }
h1 { font-size: 34px; line-height: 1.25; margin: 12px 0; }
h2 { font-size: 22px; margin-top: 32px; }
h3 { font-size: 18px; margin-top: 24px; }
.lead { font-size: 19px; color: #3c4456; }
a { color: #1a5fb4; font-weight: 600; }
footer { border-top: 1px solid #e3e6ec; color: #5b6475; font-size: 14px; padding-top: 12px; padding-bottom: 24px; }
.updated { color: #5b6475; font-size: 15px; }