:root{--ink:#172033;--muted:#55607a;--paper:#f6f8fb;--card:#fff;--line:#d9dfea;--accent:#0f6b6b;--tint:#e4f1f0}
@media (prefers-color-scheme:dark){:root{--ink:#e8ecf4;--muted:#9aa6bf;--paper:#0f1522;--card:#161e2f;--line:#27324a;--accent:#5cc4c0;--tint:#13303a}}
*{box-sizing:border-box}html{scroll-padding-top:1rem}
body{margin:0;background:var(--paper);color:var(--ink);font:1.0625rem/1.7 system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif}
.bar{display:flex;flex-wrap:wrap;gap:.75rem 1.5rem;justify-content:space-between;align-items:center;max-width:46rem;margin:0 auto;padding:1rem 1.25rem}
.bar a{color:var(--ink);text-decoration:none;font-weight:600}.bar nav a{font-weight:400;color:var(--muted);margin-left:1rem}
.bar nav a[aria-current]{color:var(--accent);font-weight:600;text-decoration:underline;text-underline-offset:4px}
main{max-width:46rem;margin:0 auto;padding:1rem 1.25rem 4rem}
h1,h2,h3{font-family:Charter,"Iowan Old Style",Georgia,"Times New Roman",serif;line-height:1.25;margin:2.2rem 0 .6rem}
h1{font-size:clamp(1.9rem,5vw,2.6rem);margin-top:1rem}h2{font-size:1.5rem}h3{font-size:1.15rem;margin-top:1.5rem}
.meta{color:var(--muted);font-size:.95rem;margin:0 0 1.5rem}
.answer{background:var(--tint);border-left:4px solid var(--accent);border-radius:6px;padding:1rem 1.25rem;margin:1.5rem 0}
.answer h2{margin:0 0 .4rem;font-size:1.2rem}.answer p{margin:0}
dl{display:grid;grid-template-columns:minmax(8rem,12rem) 1fr;gap:.5rem 1rem;background:var(--card);border:1px solid var(--line);border-radius:6px;padding:1rem 1.25rem}
dt{color:var(--muted)}dd{margin:0;font-weight:500}
@media (max-width:34rem){dl{grid-template-columns:1fr}dd{margin-bottom:.5rem}}
li{margin:.35rem 0}a{color:var(--accent)}a:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
.note{color:var(--muted);font-size:.92rem;border-top:1px solid var(--line);margin-top:2.5rem;padding-top:1rem}
footer{max-width:46rem;margin:0 auto;padding:0 1.25rem 3rem;color:var(--muted);font-size:.9rem}
.tablewrap{overflow-x:auto;margin:1rem 0}
table{border-collapse:collapse;width:100%;min-width:36rem;font-size:.95rem;background:var(--card)}
th,td{border:1px solid var(--line);padding:.6rem .75rem;text-align:left;vertical-align:top}
th{background:var(--tint)}