body { margin: 0; padding: 40px 18px; background: #f3f5fa; color: #202b40; font: 17px/1.6 system-ui, sans-serif; }
main { max-width: 640px; margin: auto; background: white; padding: 28px; border-radius: 16px; }
h1 { margin-top: 0; }
h2 { font-size: 1.1rem; margin-top: 1.6em; }
.meta { color: #58657b; font-size: .9rem; }
a { color: #3459cb; }