:root{--color-primary:#c1121f;--color-on-primary:#fff;--color-background:#fff;--color-text:#1a1a1a;--color-text-muted:#5c5c5c}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{background-color:var(--color-background);color:var(--color-text);margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.5}h1,h2,h3{margin:0 0 .5rem;line-height:1.2}a{color:var(--color-primary)}small,.text-muted{color:var(--color-text-muted)}.surface-primary{background-color:var(--color-primary);color:var(--color-on-primary)}:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}.app{flex-direction:column;min-height:100vh;display:flex}.app__header{padding:1rem 1.5rem}.app__title{margin:0;font-size:1.375rem}.app__main{width:100%;max-width:60rem;margin:0 auto;padding:2rem 1.5rem}.app__lead{margin:0 0 .75rem;font-size:1.0625rem}.app__rule{background-color:var(--color-primary);border:0;width:4rem;height:.25rem;margin:0 0 1.5rem}