body { margin: 0; min-height: 100vh; display: grid; place-items: center; font: 17px/1.6 system-ui, sans-serif; background: #f4f6f8; color: #1d2a33; }
main { max-width: 34rem; padding: 2rem 1.25rem; }
h1 { font-size: 2rem; margin: 0 0 .5rem; }
a { color: #1d5fa8; }