:root{--bg:#f3f5f6;--panel:#fff;--ink:#16202a;--muted:#56636f;--line:#d5dce1;--water:#0b6e8a;--safety:#e8731a;
  --display:"Barlow Condensed","Arial Narrow",Impact,sans-serif;--body:"Source Sans 3",system-ui,-apple-system,"Segoe UI",sans-serif}
@media (prefers-color-scheme:dark){:root{--bg:#11171c;--panel:#1a222a;--ink:#e8edf1;--muted:#9aa7b2;--line:#2c3742;--water:#4fb3cf;--safety:#f08a3c;color-scheme:dark}}
body{margin:0;background:var(--bg);color:var(--ink);font:400 1.06rem/1.65 var(--body)}
main{max-width:700px;margin:0 auto;padding:24px 20px 64px}
nav{font-size:.92rem;margin-bottom:22px}nav a{color:var(--water)}
a{color:var(--water)}
h1,h2{font-family:var(--display);font-weight:800;line-height:1.05;text-transform:uppercase;text-wrap:balance}
h1{font-size:clamp(2.1rem,7vw,3rem);margin:0 0 10px}
h2{font-size:1.6rem;margin:36px 0 10px}
.lede{font-size:1.15rem;color:var(--muted)}
.box{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:18px 20px;margin:18px 0}
table{border-collapse:collapse;width:100%;font-variant-numeric:tabular-nums;font-size:.97rem}
th,td{text-align:left;padding:8px 6px;border-bottom:1px solid var(--line);vertical-align:top}
td.n{text-align:right;white-space:nowrap}
.wrapt{overflow-x:auto}
.src{font-size:.88rem;color:var(--muted)}
.cta{display:inline-block;background:var(--safety);color:#fff;text-decoration:none;font-weight:700;padding:13px 20px;border-radius:8px;margin-top:6px}
footer{margin-top:44px;border-top:1px solid var(--line);padding-top:16px;font-size:.9rem;color:var(--muted)}