:root{--ink:#1d2433;--muted:#5b6474;--rule:#d9dde4;--link:#0f5e66;--bg:#ffffff}
@media (prefers-color-scheme:dark){:root{--ink:#e6e8ec;--muted:#a3aab6;--rule:#333a47;--link:#6cc4cc;--bg:#141821}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:1.0625rem/1.7 Charter,"Iowan Old Style","Palatino Linotype",Georgia,serif}
header,main,footer{max-width:42rem;margin:0 auto;padding:0 1.25rem}
header{padding-top:2rem;padding-bottom:1rem;border-bottom:1px solid var(--rule)}
.mark{font-weight:700;font-size:1.125rem;letter-spacing:.01em;color:var(--ink);text-decoration:none}
main{padding-top:2.25rem;padding-bottom:3rem}
h1{font-size:2rem;line-height:1.2;margin:0 0 .25rem}
.date{color:var(--muted);margin:0 0 2rem}
h2{font-size:1.2rem;margin:2.25rem 0 .5rem}
p,ul{margin:0 0 1rem}
ul{padding-left:1.25rem}
li{margin:.25rem 0}
a{color:var(--link);text-underline-offset:.15em}
a:focus-visible{outline:2px solid var(--link);outline-offset:2px;border-radius:2px}
footer{border-top:1px solid var(--rule);padding-top:1.25rem;padding-bottom:2.5rem;color:var(--muted);font-size:.9375rem}
footer a{margin-right:1.25rem}