:root{
  --paper:#f3f4f6;--panel:#ffffff;--ink:#15181d;--muted:#5b6470;--line:#d9dde3;--accent:#2f5d8a;
  color-scheme:light dark;
}
@media (prefers-color-scheme:dark){
  :root{--paper:#121418;--panel:#1a1d23;--ink:#eceef1;--muted:#9aa3ad;--line:#2b3038;--accent:#8fb3d9;}
}
*{box-sizing:border-box}
html{font-size:17px;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);
  font-family:"Iowan Old Style","Palatino Linotype","Book Antiqua",Palatino,Georgia,serif;
  line-height:1.6}
a{color:var(--accent);text-decoration:none;border-bottom:1px solid currentColor}
a:hover{border-bottom-width:2px}
a:focus-visible,button:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
.wrap{max-width:46rem;margin:0 auto;padding:3rem 1.5rem 4rem}
header{display:flex;align-items:baseline;justify-content:space-between;gap:1rem;padding-bottom:2.5rem}
.mark{font-size:1.5rem;font-weight:700;letter-spacing:-0.02em;color:var(--ink);border:0}
.mark:hover{border:0}
header nav a{margin-left:1.25rem;font-size:0.95rem;color:var(--muted);border:0}
header nav a:hover{color:var(--ink)}
h1{font-size:clamp(2.2rem,6vw,3.6rem);line-height:1.05;letter-spacing:-0.02em;font-weight:500;margin:0 0 1.5rem;max-width:18ch}
.lede{font-size:1.2rem;max-width:34ch;margin:0 0 2.5rem}
h2{font-size:1.25rem;font-weight:600;margin:2.5rem 0 0.75rem}
p{margin:0 0 1rem;max-width:62ch}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:4px;padding:1.5rem 1.75rem;margin:2.5rem 0}
dl{display:grid;grid-template-columns:9rem 1fr;gap:0.6rem 1.5rem;margin:0}
dt{color:var(--muted)}
dd{margin:0}
@media (max-width:520px){dl{grid-template-columns:1fr;gap:0.2rem}dt{margin-top:0.8rem}}
footer{margin-top:4rem;padding-top:1.5rem;border-top:1px solid var(--line);color:var(--muted);font-size:0.9rem}
footer p{margin:0 0 0.4rem}
footer a{color:var(--muted);margin-right:1.25rem;border:0}
footer a:hover{color:var(--ink)}
.year{white-space:nowrap}
ul{padding-left:1.2rem}
li{margin-bottom:0.5rem;max-width:60ch}
.effective{color:var(--muted);margin-bottom:2rem}