:root{
  --bg:#f4f6f5; --ink:#16211d; --soft:#4c5a54; --line:#dce2df; --card:#ffffff;
  --brand:#0e7a53; --brand-soft:#e2f1ea; --accent:#c9a227;
  --sans:"Helvetica Neue",Arial,system-ui,sans-serif;
  --num:"SFMono-Regular",ui-monospace,Consolas,monospace;
  --shadow:0 1px 2px rgba(16,33,29,.04),0 8px 24px rgba(16,33,29,.05);
}
:root[data-theme="dark"]{--bg:#0f1513;--ink:#e8ece9;--soft:#a5b0ab;--line:#26302c;--card:#151d1a;
    --brand:#3fbd88;--brand-soft:#13312a;--accent:#e0c25a;
    --shadow:0 1px 2px rgba(0,0,0,.3),0 8px 24px rgba(0,0,0,.35);}
.themetog{border:1px solid var(--line);background:var(--card);color:var(--soft);cursor:pointer;
  width:34px;height:34px;border-radius:50%;font-size:15px;line-height:1;display:inline-flex;
  align-items:center;justify-content:center;padding:0;flex:none}
.themetog:hover{border-color:var(--brand);color:var(--brand)}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);line-height:1.65;
  -webkit-font-smoothing:antialiased}
.wrap{max-width:760px;margin:0 auto;padding:clamp(16px,4vw,40px)}

/* header — matches the calculator home */
.topbar{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;
  margin-bottom:26px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.brand{font-weight:800;font-size:18px;letter-spacing:-.01em;display:flex;align-items:center;gap:10px;
  text-decoration:none;color:var(--ink)}
.flag{width:30px;height:20px;border-radius:3px;background:#fff;border:1px solid var(--line);position:relative;overflow:hidden}
.flag::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 50% 42%, #d57800 0 18%, transparent 19%);opacity:.85}
.nav{display:flex;gap:16px;font-size:14px;align-items:center}
.nav a{color:var(--soft);text-decoration:none;font-weight:600}
.nav a:hover{color:var(--brand)}
.nav a.home{color:var(--brand)}

/* headings & text */
h1{font-size:clamp(26px,4.6vw,36px);letter-spacing:-.02em;line-height:1.12;text-wrap:balance;margin:.3em 0 .25em}
h2{font-size:21px;letter-spacing:-.01em;margin:1.8em 0 .35em;text-wrap:balance}
h3{font-size:16px;margin:1.4em 0 .2em}
p{margin:.7em 0}
a{color:var(--brand)}
.lead{color:var(--soft);font-size:clamp(16px,2.4vw,18px);margin:.4em 0 1.1em;line-height:1.5}
ul,ol{padding-left:1.3em}
li{margin:.4em 0}
strong{color:var(--ink)}

/* primary CTA */
.cta{display:inline-flex;align-items:center;gap:8px;background:var(--brand);color:#fff;text-decoration:none;
  font-weight:800;font-size:15px;padding:13px 24px;border-radius:11px;margin:6px 0 8px;
  box-shadow:var(--shadow);transition:transform .08s ease,filter .12s ease}
.cta:hover{filter:brightness(1.06);transform:translateY(-1px)}

/* numbers read as data */
table.rates,.callout,.worked li b,.worked li strong{font-variant-numeric:tabular-nums}

/* rate tables */
table.rates{border-collapse:collapse;width:100%;font-size:14px;margin:1.1em 0;background:var(--card);
  border:1px solid var(--line);border-radius:11px;overflow:hidden;box-shadow:var(--shadow)}
table.rates th,table.rates td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--line);
  font-variant-numeric:tabular-nums}
table.rates tr:last-child td{border-bottom:0}
table.rates th{background:var(--brand-soft);color:var(--brand);font-size:12px;text-transform:uppercase;letter-spacing:.05em}
table.rates td:last-child,table.rates th:last-child{text-align:right;font-family:var(--num)}

/* callouts / examples */
.callout{background:var(--brand-soft);border:1px solid var(--line);border-radius:11px;padding:14px 18px;
  font-size:14px;color:var(--soft);margin:1.3em 0;line-height:1.55}
.worked{background:var(--card);border:1px solid var(--line);border-radius:11px;padding:6px 20px;margin:1.1em 0;box-shadow:var(--shadow)}

details{border:1px solid var(--line);border-radius:11px;padding:2px 16px;margin:9px 0;background:var(--card)}
summary{cursor:pointer;font-weight:700;padding:12px 0}
summary::marker{color:var(--brand)}

.adslot{margin:28px 0;min-height:90px;display:flex;align-items:center;justify-content:center;
  border:1px dashed var(--line);border-radius:11px;color:var(--soft);font-size:12px;background:var(--card)}
.adslot[data-live="1"]{border:0;min-height:0;background:transparent}

/* related chips */
.related{margin-top:34px;padding-top:22px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:10px}
.related a{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:9px 15px;
  font-size:13px;font-weight:600;text-decoration:none;color:var(--ink)}
.related a:hover{border-color:var(--brand);color:var(--brand)}

footer{margin-top:40px;padding-top:16px;border-top:1px solid var(--line);font-size:12px;color:var(--soft)}
footer a{color:var(--soft)}