:root{--navy:#0A2240;--cyan:#00E1F7;--bg:#FFFFFF;--bg2:#F3F6F9;--ink:#0A2240;--muted:#4E6178;--line:#DCE4EC;--accent:#007A88;--good:#1E8449;--bad:#B03A2E}
@media (prefers-color-scheme: dark){:root{--bg:#061A30;--bg2:#081F3A;--ink:#E8F1F8;--muted:#9FB3C8;--line:#1C3A5C;--accent:#00E1F7;--good:#58D68D;--bad:#F1948A;color-scheme:dark}}
*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.65 "IBM Plex Sans",system-ui,sans-serif}
a{color:var(--accent)}
.nav{background:var(--navy);color:#fff}.nav .w{max-width:860px;margin:0 auto;padding:0 24px;height:64px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font:700 20px "Lexend",sans-serif}.brand img{height:34px}.brand b{color:var(--cyan);font-weight:700}
.navlinks{display:flex;align-items:center;gap:18px}.navlinks a{white-space:nowrap;color:#C9D8E6;text-decoration:none;font-weight:600;font-size:15px}
.nav a.demo{color:#04182C;background:var(--cyan);padding:8px 14px;border-radius:10px}
main{max-width:860px;margin:0 auto;padding:28px 24px 72px}
h1{font:700 36px/1.15 "Lexend",sans-serif;margin:6px 0 10px}h2{font:600 22px/1.3 "Lexend",sans-serif;margin:34px 0 10px}h3{font:600 18px/1.35 "Lexend",sans-serif;margin:20px 0 6px}
p,ul{margin:0 0 14px}li{margin:6px 0}
.crumbs{font-size:14px;color:var(--muted);margin:0}.crumbs a{color:var(--muted)}
.lead{font-size:19px;color:var(--muted)}
.small{font-size:14px;color:var(--muted)}
.tool{border:1px solid var(--line);border-radius:16px;background:var(--bg2);padding:20px;margin:18px 0 8px}
.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.grid label{display:grid;gap:6px;font-weight:600;font-size:15px}.grid .full{grid-column:1/-1}
.grid input,.grid select{font:inherit;font-weight:400;padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:var(--ink);width:100%;min-width:0}
.pair{display:grid;grid-template-columns:1fr 110px;gap:8px}
details summary{cursor:pointer;font-weight:600;font-size:15px;margin-bottom:8px}
.out{margin-top:16px;padding:16px 18px;border-radius:12px;background:var(--bg);border-left:5px solid var(--accent)}
.out.good{border-left-color:var(--good)}.out.bad{border-left-color:var(--bad)}
.out p{margin:0 0 8px}.out p:last-child{margin:0}.out .big{font:700 24px/1.25 "Lexend",sans-serif}
.out.bad .big{color:var(--bad)}.out.good .big{color:var(--good)}
table.conv{border-collapse:collapse;width:100%}table.conv td{text-align:right;padding:5px 10px;font-variant-numeric:tabular-nums}table.conv th{text-align:left;padding:5px 10px;font-weight:600}table.conv tr.on{background:var(--bg2)}
table.ref{border-collapse:collapse;width:100%;font-size:15px}table.ref th,table.ref td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--line)}
.formula{font:600 20px "IBM Plex Sans",sans-serif;background:var(--bg2);padding:12px 16px;border-radius:10px;display:inline-block}
.sponsor{display:flex;flex-wrap:wrap;align-items:center;gap:6px 12px;margin:18px 0;padding:12px 16px;border:1px dashed var(--line);border-radius:12px;font-size:15px}
.sponsor .lbl{font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);border:1px solid var(--line);border-radius:99px;padding:2px 8px}
.sponsor.empty{color:var(--muted)}
.cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:18px 0}
.card{display:block;border:1px solid var(--line);border-radius:14px;padding:18px;text-decoration:none;color:var(--ink);background:var(--bg)}
.card:hover{border-color:var(--accent)}.card h2{margin:0 0 6px;font-size:19px;color:var(--accent)}.card p{margin:0;color:var(--muted);font-size:15px}
.toolnav{display:flex;flex-wrap:wrap;gap:8px}.toolnav a{padding:8px 12px;border:1px solid var(--line);border-radius:99px;text-decoration:none;font-size:15px}.toolnav a[aria-current]{background:var(--bg2);color:var(--ink)}
.cta{margin-top:28px;padding:18px 20px;border-radius:14px;background:var(--navy);color:#E8F1F8}.cta a{color:var(--cyan);font-weight:600}
footer{background:#061A30;color:#9FB3C8;font-size:15px}footer .w{max-width:860px;margin:0 auto;padding:28px 24px;display:flex;flex-wrap:wrap;gap:10px 22px;justify-content:space-between}
footer a{color:#C9D8E6;text-decoration:none}
@media (max-width:640px){.grid,.cards{grid-template-columns:1fr}h1{font-size:28px}.nav .w{padding:0 14px}.brand{font-size:18px}.brand img{height:28px}.navlinks{gap:10px}.navlinks a[href="/pricing/"]{display:none}.nav a.demo{padding:7px 10px;font-size:14px}main{padding:20px 16px 56px}}