:root {
    font-family: system-ui, sans-serif;
    color: #252525;
    background: #fff;
}

body { margin: 0; }
.foundation header, .foundation main { max-width: 64rem; margin: 0 auto; padding: 1.5rem; }
.foundation header { border-bottom: 1px solid #ddd; }
a { color: #175394; }
a:focus-visible { outline: 2px solid currentColor; outline-offset: 3px; }