:root{--blue: #0b95e8;--blue-text: #0a7bc0;--blue-dark: #086aa6;--ink: #21272c;--ink-2: #4b5860;--muted: #6b7780;--line: #e3e8ed;--line-2: #eef1f4;--ok: #1f7a45;--ok-bg: #e3f5ea;--warn: #8a5a00;--warn-bg: #fff4d6;--fail: #b3261e;--fail-bg: #fdecea}*{box-sizing:border-box}html,body{margin:0}body{font-family:system-ui,-apple-system,Segoe UI,sans-serif;color:var(--ink);background:#fff;line-height:1.5}a{color:var(--blue-text);text-decoration:none}a:hover{text-decoration:underline}.wrap{max-width:1060px;margin:0 auto;padding:0 22px}header.top{border-bottom:1px solid var(--line-2);background:#fff}header.top .nav{display:flex;align-items:center;gap:14px;min-height:64px;flex-wrap:wrap;padding-top:6px;padding-bottom:6px}header.top .logo{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:800;color:var(--ink);letter-spacing:-.5px}header.top .logo img{width:40px;height:24px}header.top .crumb{color:var(--ink-2);font-size:15px}header.top .crumb a{color:var(--ink-2)}header.top .crumb ol{list-style:none;margin:0;padding:0;display:inline}header.top .crumb li{display:inline}header.top .crumb li+li:before{content:" / "}header.top .crumb b{color:var(--ink);font-weight:600}header.top .spacer{flex:1}@media(max-width:640px){header.top .crumb{display:none}header.top .nav{gap:10px}}.btn{display:inline-flex;align-items:center;gap:8px;cursor:pointer;white-space:nowrap;background:var(--blue-text);color:#fff!important;font-weight:600;border:2px solid var(--blue-text);border-radius:10px;padding:8px 16px;font-size:14px;text-decoration:none!important;font-family:inherit;line-height:1.2}.btn:hover{background:var(--blue-dark);border-color:var(--blue-dark)}.btn.small{padding:6px 12px;font-size:13px;border-radius:8px}.btn:focus-visible,button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid var(--blue-text);outline-offset:2px}.intro{padding:22px 0 4px}.intro h1{font-size:clamp(28px,4vw,36px);margin:0 0 8px;letter-spacing:-.5px;line-height:1.15}.intro .lede{margin:0;color:#3d4a53;font-size:16px;max-width:820px}.beta{margin:18px 0 4px;padding:12px 16px;border:2px solid #f2c94c;border-radius:12px;background:#fff8e1;color:#5f4400;font-size:14px;line-height:1.5}.beta b{color:var(--warn);margin-right:6px}.help-btn{display:inline-flex;align-items:center;justify-content:center;flex:none;width:18px;height:18px;border-radius:50%;border:1px solid var(--blue);background:#fff;color:var(--blue-text);font:700 11px/1 system-ui,sans-serif;cursor:pointer;padding:0;vertical-align:middle}.help-btn:hover{background:var(--blue-text);color:#fff}.help-btn.demo{pointer-events:none}header.top .links{display:flex;gap:16px;font-size:14.5px}header.top .links a{color:var(--ink-2)}header.top .links a:hover,header.top .links a[aria-current=page]{color:var(--blue-text)}@media(max-width:760px){header.top .links{gap:12px;font-size:13.5px}}@media(max-width:520px){header.top .links{display:none}}.intro .jump{margin:10px 0 0;font-size:14px;color:var(--ink-2)}.intro .jump a{margin-right:14px;white-space:nowrap}#root:empty{min-height:100vh}#root:empty:before{content:"Loading the calculator…";display:block;padding:40px 0;color:var(--muted);font-size:14px;text-align:center}.guide{max-width:800px;margin:40px 0 0;padding-top:10px;border-top:1px solid var(--line);font-size:16px;line-height:1.62;color:#2b333a}.guide>h2:first-child{margin-top:18px}.guide h2{font-size:23px;line-height:1.25;letter-spacing:-.3px;margin:38px 0 10px;color:var(--ink)}.guide h3{font-size:17.5px;margin:26px 0 6px;color:var(--ink)}.guide p{margin:0 0 14px}.guide ul,.guide ol{margin:0 0 14px;padding-left:22px}.guide li{margin:0 0 6px}.guide .f{display:block;margin:6px 0 14px;padding:10px 14px;background:#f7fafc;border:1px solid var(--line-2);border-radius:10px;font:14.5px/1.6 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;overflow-x:auto;white-space:pre}.guide .tablewrap{overflow-x:auto;margin:6px 0 16px}.guide table{border-collapse:collapse;width:100%;font-size:14.5px}.guide th,.guide td{text-align:left;padding:7px 10px;border-bottom:1px solid var(--line-2);vertical-align:top}.guide thead th{font-size:12px;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);font-weight:700}.guide td.num,.guide th.num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}.guide .note{font-size:14px;color:var(--muted)}.guide details{border:1px solid var(--line);border-radius:10px;padding:0 14px;margin:0 0 8px;background:#fff}.guide details summary{cursor:pointer;font-weight:600;padding:11px 0;color:var(--ink)}.guide details[open] summary{border-bottom:1px solid var(--line-2);margin-bottom:10px}.guide details p:last-child{margin-bottom:12px}.guide .refs{font-size:14px;color:var(--ink-2)}.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:10px;margin:8px 0 18px;padding:0;list-style:none}.cards li{margin:0}.cards a{display:block;height:100%;padding:12px 14px;border:1px solid var(--line);border-radius:12px;color:var(--ink);background:#fff}.cards a:hover{border-color:var(--blue);text-decoration:none;background:#f7fbfe}.cards b{display:block;font-size:15px;margin-bottom:3px;color:var(--blue-text)}.cards span{display:block;font-size:13.5px;color:var(--ink-2);line-height:1.45}.terms{max-width:860px}.term{padding:22px 0;border-bottom:1px solid var(--line-2);display:grid;grid-template-columns:1fr 260px;gap:8px 26px;align-items:start}.term h2{grid-column:1 / -1;font-size:21px;margin:0;letter-spacing:-.2px}.term .body p{margin:0 0 10px}.term .body p.def{font-size:16.5px;color:var(--ink)}.term .body .more{color:var(--ink-2);font-size:15px}.term dl{margin:6px 0 8px;display:grid;grid-template-columns:auto 1fr;gap:3px 12px;font-size:14px}.term dt{color:var(--muted)}.term dd{margin:0}.term figure{margin:0}.term figure img{width:100%;height:auto;display:block;border:1px solid var(--line-2);border-radius:12px;background:#f2f9fd}.term .use{font-size:13.5px}@media(max-width:720px){.term{grid-template-columns:1fr}.term figure{max-width:320px}}.az{columns:3 220px;column-gap:26px;padding:0;list-style:none;margin:10px 0 20px}.az li{break-inside:avoid;margin:0 0 5px;font-size:15px}.az .letter{font-weight:800;color:var(--muted);margin-top:10px;font-size:13px;letter-spacing:.6px}footer.foot{padding:26px 0 40px;color:var(--muted);font-size:13px;border-top:1px solid var(--line-2);margin-top:40px}footer.foot .cols{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:18px 26px;margin-bottom:22px}footer.foot h2{font-size:12px;text-transform:uppercase;letter-spacing:.6px;color:var(--ink-2);margin:0 0 8px}footer.foot ul{list-style:none;margin:0;padding:0}footer.foot li{margin:0 0 5px;font-size:13.5px}footer.foot a{color:var(--ink-2)}