:root{--bg:#08190F;--surface:#0F2A1D;--line:#24503D;--chalk:#F3F1E7;--dim:#9DB8AC;--green:#35C25E}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--chalk);font:17px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
main{max-width:720px;margin:0 auto;padding:48px 20px 64px}
a{color:var(--green)}
h1{font-size:40px;line-height:1.1;margin:0 0 8px;letter-spacing:-.5px}
h2{font-size:22px;margin:36px 0 8px}
p,li{color:var(--chalk)}
.dim{color:var(--dim)}
.eyebrow{color:var(--green);font-weight:700;letter-spacing:1.5px;text-transform:uppercase;font-size:13px;margin:0 0 10px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:20px 22px;margin:16px 0}
.card h2{margin-top:0}
.btn{display:inline-block;background:var(--green);color:var(--bg);font-weight:700;text-decoration:none;padding:12px 20px;border-radius:12px;margin-top:6px;word-break:break-all}
nav{display:flex;gap:18px;flex-wrap:wrap;margin:22px 0 8px}
nav a{font-weight:600;text-decoration:none}
footer{margin-top:48px;color:var(--dim);font-size:14px;border-top:1px solid var(--line);padding-top:18px}
ul{padding-left:22px}
h3{font-size:18px;margin:24px 0 6px}
.lead{font-size:19px;color:var(--dim);margin:0 0 20px}
header.top{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin:-24px 0 28px}
header.top .brand{color:var(--chalk);font-weight:800;text-decoration:none;font-size:18px}
nav.guides{margin:0;gap:14px;font-size:15px}
nav.guides a[aria-current]{color:var(--chalk)}
.jump{display:flex;flex-wrap:wrap;gap:8px}
.jump a{border:1px solid var(--line);border-radius:999px;padding:4px 12px;text-decoration:none;font-size:15px}
.tablewrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);border-radius:14px}
table.chart{width:100%;border-collapse:collapse;font-variant-numeric:tabular-nums;font-size:16px}
.chart th,.chart td{padding:8px 12px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap}
.chart th{background:var(--surface);color:var(--dim);font-weight:600;font-size:14px}
.chart td:first-child{font-weight:700}
.chart tr:last-child td{border-bottom:0}
.chart tr.b td{color:var(--dim)}
.chart.wrap td{white-space:normal}
.bogey{display:inline-block;background:#3a2a12;color:#F2C46B;border-radius:6px;padding:0 7px;font-size:13px;font-weight:700;margin-right:6px}
.calc label{display:block;color:var(--dim);font-size:14px;font-weight:600;margin-bottom:6px}
.calc input{width:100%;font-family:inherit;font-size:34px;font-weight:700;line-height:1.2;color:var(--chalk);background:var(--bg);border:1px solid var(--line);border-radius:12px;padding:10px 14px}
.calc input:focus{outline:2px solid var(--green);border-color:transparent}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.seg{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;margin:12px 0 4px}
.seg button{font-family:inherit;font-size:16px;font-weight:600;color:var(--chalk);background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:10px 0;cursor:pointer}
.seg button[aria-pressed="true"]{background:var(--green);color:var(--bg);border-color:var(--green)}
.route{font-size:32px;font-weight:800;color:var(--green);margin:14px 0 4px;min-height:1.2em;font-variant-numeric:tabular-nums}
.formula{font-size:20px;font-weight:700;background:var(--surface);border-left:4px solid var(--green);padding:12px 16px;border-radius:8px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:12px}
.tile{display:block;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:16px 18px;text-decoration:none;color:var(--chalk)}
.tile strong{display:block;color:var(--green);margin-bottom:4px}
.tile span{color:var(--dim);font-size:15px}
.feat li{margin:6px 0}
.cta{margin-top:40px}
footer nav{gap:14px}
@media (max-width:480px){h1{font-size:32px}.route{font-size:26px}.chart th,.chart td{padding:7px 9px;font-size:15px}}