:root{--ink:#172f35;--muted:#4c666b;--paper:#f4f3eb;--card:#fffef8;--teal:#075e63;--lime:#d9ec96;--line:#cbd7cf;--accent:#ac411f}*{box-sizing:border-box}html{color:var(--ink);background:var(--paper);font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-size:16px;line-height:1.65}body{margin:0}a{color:var(--teal);text-underline-offset:3px}a:hover{text-decoration-thickness:2px}button,input,select{font:inherit}button,a,input,select{touch-action:manipulation}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:3px}.skip{position:absolute;left:10px;top:-70px;background:white;padding:8px;z-index:10}.skip:focus{top:8px}.site-head{border-bottom:1px solid var(--line);background:var(--ink);color:white}.head-inner{max-width:1160px;margin:auto;padding:16px 24px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{font-weight:800;font-size:18px;color:white;text-decoration:none;letter-spacing:-.4px}.brand-mark{color:var(--lime);border:1px solid #819390;border-radius:5px;padding:1px 6px;margin-right:6px}.site-head nav{display:flex;gap:20px}.site-head nav a{color:white;font-size:14px}.shell{max-width:1160px;padding:28px 24px 0;margin:auto}.eyebrow{font-size:12px;font-weight:750;letter-spacing:1.4px;text-transform:uppercase;color:var(--teal);margin:0 0 6px}.breadcrumb{font-size:13px;margin:0 0 12px;color:var(--muted)}h1{font-size:clamp(28px,4vw,46px);letter-spacing:-1.5px;line-height:1.13;margin:0 0 20px;max-width:900px}h2{font-size:25px;line-height:1.25;letter-spacing:-.6px;margin:36px 0 14px}h3{font-size:18px;line-height:1.4;margin:24px 0 8px}p{margin:0 0 18px}.workspace{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:28px;align-items:start}.workspace>div,.workspace>aside{min-width:0}.tool{border:1px solid var(--teal);background:var(--card);border-radius:10px;overflow:hidden;box-shadow:0 5px 0 #dfe5d4}.tool-form{padding:20px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 16px}.field{min-width:0}label{display:block;font-size:13px;font-weight:700;margin-bottom:4px}input,select{width:100%;min-width:0;max-width:100%;height:43px;padding:7px 10px;border:1px solid #8a9e98;border-radius:5px;color:var(--ink);background:white}button{border:0;border-radius:5px;background:var(--teal);color:white;font-weight:750;min-height:43px;padding:9px 18px;cursor:pointer}.wide{grid-column:1/-1}.form-note{font-size:12px;line-height:1.5;margin:0;color:var(--muted)}.result{background:var(--lime);border-top:1px solid #afc478;padding:18px 20px;min-height:145px}.result-label{display:block;text-transform:uppercase;letter-spacing:1px;font-size:11px;font-weight:800;margin-bottom:5px}.result strong{display:block;font-size:25px;letter-spacing:-.5px;line-height:1.2}.result p{font-size:13px;line-height:1.5;margin:8px 0 0}.result.error{background:#fbe4d7}.result.pending{background:#ecead7}.result.pending:before{content:'Inputs changed. Recalculate to update the result.';display:block;font-size:12px;font-weight:700;margin-bottom:7px}.rail{background:#e8ebde;border-top:4px solid var(--teal);padding:18px;border-radius:0 0 8px 8px}.rail h2{font-size:17px;margin:0 0 12px}.rail a{display:block;font-size:14px;margin:12px 0;line-height:1.4}.rail p{font-size:13px;margin:14px 0 0}.intro{font-size:17px;line-height:1.8}.data-note{font-size:12px;font-weight:700;color:var(--muted);margin:26px 0 12px}.notice{padding:16px 18px;border-left:4px solid var(--accent);background:#f1e9db;font-size:14px;margin:22px 0}.table-wrap{max-width:100%}table{width:100%;border-collapse:collapse;table-layout:fixed;font-size:14px;background:var(--card)}caption{text-align:left;color:var(--muted);font-size:12px;margin-bottom:8px}th,td{border-bottom:1px solid var(--line);padding:12px;text-align:left;vertical-align:top;overflow-wrap:anywhere}th{background:#e4eade;font-weight:700}tbody th{background:var(--card)}.formula{border:1px solid var(--line);border-radius:6px;padding:16px;background:var(--card);font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:14px;line-height:1.7;overflow-wrap:anywhere}.faq details{border-bottom:1px solid var(--line);padding:16px 0}.faq summary{cursor:pointer;font-weight:700;line-height:1.5}.faq details p{font-size:15px;margin:12px 0 0}.sources{font-size:14px}.sources li{margin-bottom:12px}.sources blockquote{margin:5px 0 0;padding-left:12px;border-left:2px solid var(--line);color:var(--muted);font-size:13px}.ad-slot{min-height:100px;margin:26px 0}.ad-top{min-height:100px}.ad-side{min-height:240px}.ad-bottom{min-height:100px}.related{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.related a{display:block;padding:16px;border:1px solid var(--line);border-radius:6px;background:var(--card);font-weight:700;text-decoration:none;line-height:1.4}.related a:hover{border-color:var(--teal)}footer{border-top:1px solid var(--line);margin-top:18px;padding:28px 24px 36px;color:var(--muted);font-size:13px}.footer-inner{max-width:1112px;margin:auto}footer nav{display:flex;flex-wrap:wrap;gap:20px;margin-bottom:12px}.document{max-width:790px}.support-intro{font-size:17px}.mobile-side{display:none}noscript p{background:#fbe4d7;padding:14px}small{font-size:12px}
@media(max-width:760px){.head-inner{padding:12px 16px;gap:10px}.site-head nav{gap:12px}.site-head nav a{font-size:12px}.shell{padding:20px 16px 0}.workspace{display:block}.workspace>aside{display:none}.mobile-side{display:block}.tool-form{padding:14px;gap:9px 12px}.result{padding:14px;min-height:142px}.result strong{font-size:22px}h1{font-size:29px;letter-spacing:-1px;margin-bottom:14px}.eyebrow{font-size:10px}.intro{font-size:16px}h2{font-size:23px}.related{grid-template-columns:1fr}th,td{padding:9px 7px;font-size:12px}.ad-side{min-height:100px}.tool-form .field label{font-size:12px}input,select{font-size:16px;padding:6px;height:41px}.breadcrumb{font-size:12px}.head-inner nav a:last-child{display:none}}
@media(prefers-reduced-motion:no-preference){a,button{transition:background-color .15s,border-color .15s}}

.document-workspace{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:28px;align-items:start}.document-rail{min-width:0}.rail .ad-side{margin-bottom:0}
@media(max-width:760px){.workspace>aside{display:block}.rail{padding:0;border:0;background:none}.rail>h2,.rail>a,.rail>p{display:none}.document-workspace{display:block}}