body { margin: 0; font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; background: #f7f7f8; color: #202124; }
main { max-width: 720px; margin: 12vh auto; padding: 0 24px; }
h1 { font-size: 32px; font-weight: 650; }
p { font-size: 18px; }