body{font-family:Arial,Helvetica,sans-serif;line-height:1.6}
header{padding:1.5rem 1rem}
header h1{font-size:2.2rem}
@media(max-width:768px){header h1{font-size:1.8rem}}
@media(min-width:1200px){header h1{font-size:2.6rem}}