*{box-sizing:border-box}
body{margin:0;font:16px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:#1d2330;background:#f6f7f9}
header{display:flex;align-items:center;justify-content:space-between;max-width:46rem;margin:0 auto;padding:1.25rem 1rem}
.logo{display:inline-block;padding:.25rem .6rem;border-radius:.4rem;background:#1d2330;color:#fff;font-weight:700;letter-spacing:.05em}
nav a{margin-left:1.25rem;color:#1d2330;text-decoration:none}
nav a:hover{text-decoration:underline}
main{max-width:46rem;margin:3rem auto;padding:0 1rem}
h1{font-size:2.25rem;line-height:1.2;margin:0 0 1rem}
.lead{font-size:1.2rem;color:#4a5263}
footer{max-width:46rem;margin:4rem auto 2rem;padding:0 1rem;color:#7b8394;font-size:.875rem}