@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Manrope:wght@400;500;600;700;800&display=swap');
:root{--ink:#292929;--navy:#252525;--navy-dark:#1d1d1d;--lime:#e1e1e1;--cyan:#acacac;--muted:#737373;--line:#e2e2e2;--paper:#f6f6f6;--white:#fff;--radius:12px;font-family:'DM Sans',system-ui,sans-serif;color:var(--ink);font-synthesis:none}*{box-sizing:border-box}body{margin:0;background:var(--paper);font-size:16px;line-height:1.5}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}button{cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #7e7e7e;outline-offset:3px}button{border:0}h1,h2,p{margin:0}h1,h2{font-family:'Manrope',system-ui,sans-serif}button,input,select{border-radius:6px}.skip{position:fixed;top:-100px;left:20px;background:white;padding:12px;z-index:100}.skip:focus{top:10px}.site-header{height:80px;background:var(--navy-dark);color:white;display:flex;align-items:center;padding:0 32px;gap:40px;border-bottom:1px solid #3d3d3d}.brand{display:flex;align-items:center;gap:10px;font-family:Manrope,sans-serif;font-size:21px;font-weight:800;letter-spacing:1px}.brand svg{width:32px;height:32px;color:var(--lime)}.brand>span>span{font-weight:400}.header-description{font-size:12px;letter-spacing:2px;color:#a7a7a7;flex:1}.library-count{font-size:13px;color:#aaaaaa}.library-count strong{color:#eeeeee;font-family:monospace;font-size:15px}.library-count span{margin:0 12px;color:#6c6c6c}.site-layout{display:grid;grid-template-columns:260px minmax(0,1fr)}.sidebar{background:white;border-right:1px solid var(--line);padding:30px 14px 18px;align-self:start;position:sticky;top:0;max-height:100vh;overflow:auto;scrollbar-width:thin}.sidebar-heading{padding:0 14px 20px;color:#808080;display:flex;justify-content:space-between;font-size:12px;letter-spacing:1.3px;font-weight:700}.sidebar-heading span{background:#f0f0f0;padding:0 6px;border-radius:3px}.trade-link{display:flex;gap:11px;align-items:center;font-size:14px;padding:10px 11px;border-radius:6px;color:#5b5b5b;min-height:43px;margin-bottom:3px;border:1px solid transparent;transition:background .15s}.trade-link>span:nth-child(2){flex:1}.trade-number{font:11px monospace;color:#909090}.trade-count{font:12px monospace;color:#9a9a9a}.trade-link:hover{background:#f5f5f5}.trade-link.active{background:#efefef;color:#3e3e3e;border-color:#e0e0e0;font-weight:700}.trade-link.active .trade-number{color:#636363}.sidebar-bottom{border-top:1px solid var(--line);margin:24px 14px 0;padding-top:20px;font-size:13px;font-weight:600}.sidebar-bottom span{color:var(--muted);font-weight:400;font-size:12px}main{padding:34px clamp(24px,3.2vw,60px) 0;min-width:0;max-width:1560px;width:100%;margin:auto}.breadcrumb{display:flex;gap:12px;align-items:center;text-transform:uppercase;letter-spacing:1.4px;font-size:11px;font-weight:700;color:#787878;margin-bottom:20px}.breadcrumb span:nth-child(2){color:#bababa}.page-heading{display:flex;align-items:center;gap:20px;justify-content:space-between;margin-bottom:24px}.page-heading h1{font-size:clamp(26px,2.4vw,40px);line-height:1.2;letter-spacing:-1.3px;font-weight:800}.page-heading h1 span{font-weight:500}.page-heading p{font-size:15px;color:var(--muted);margin-top:12px;max-width:670px}.unit-control{background:#e8e8e8;padding:4px;display:flex;border-radius:8px;flex-shrink:0}.unit-control button{padding:8px 16px;background:transparent;font-size:14px;font-weight:600;color:#757575}.unit-control button[aria-pressed=true]{background:white;color:var(--ink);box-shadow:0 1px 4px #24242414}.calculator-tabs{display:flex;gap:4px;border-bottom:1px solid #d7d7d7;margin-bottom:28px;overflow-x:auto;scrollbar-width:thin;white-space:nowrap}.calculator-tabs a{font-size:14px;color:#7e7e7e;padding:14px 17px 16px;border-bottom:3px solid transparent;transition:color .15s}.calculator-tabs a:first-child{padding-left:0;padding-right:22px}.calculator-tabs a:hover{color:var(--ink)}.calculator-tabs a[aria-current=page]{color:#3f3f3f;border-bottom-color:#6c6c6c;font-weight:700}.workspace{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(310px,.85fr);gap:24px;align-items:start}.input-card{background:white;border:1px solid var(--line);border-radius:var(--radius);padding:28px}.card-heading{display:flex;justify-content:space-between;align-items:center;gap:12px}.card-heading>div{display:flex;align-items:center;gap:12px}.card-heading h2{font-size:18px;letter-spacing:-.3px}.step{background:#eeeeee;color:#646464;font:12px monospace;padding:4px 7px;border-radius:4px}.text-button{background:transparent;color:#7b7b7b;font-size:12px;padding:6px;white-space:nowrap}.text-button:hover{color:#292929;text-decoration:underline}.input-intro{font-size:14px;color:var(--muted);margin-top:14px;max-width:330px}.fields{display:grid;grid-template-columns:1fr 1fr;gap:22px 20px;margin-top:28px}.field label{display:block;font-size:14px;font-weight:500;margin-bottom:8px;line-height:1.4}.input-wrap{display:flex;align-items:center;background:#fbfbfb;border:1px solid #dadada;border-radius:7px;overflow:hidden;min-height:51px}.input-wrap:focus-within{border-color:#717171;box-shadow:0 0 0 3px #6d6d6d12}.input-wrap input{font-size:18px;font-family:Manrope,sans-serif;font-weight:600;border:0;background:transparent;padding:11px 12px;color:#2b2b2b;min-width:0;width:100%;outline:none;box-shadow:none}.input-wrap input:focus-visible{outline:0}.input-wrap input::-webkit-inner-spin-button{opacity:.45}.input-wrap span{color:#868686;font-size:13px;padding:0 12px 0 0;white-space:nowrap;max-width:55%;text-align:right}.allowance .input-wrap{background:#f5f5f5;border-color:#dedede}.input-note{display:flex;align-items:flex-start;gap:10px;margin-top:28px;border-top:1px solid #ececec;padding-top:19px;color:#868686;font-size:12px;line-height:1.7}.input-note>span{flex-shrink:0;border:1px solid #ababab;width:16px;height:16px;border-radius:50%;display:grid;place-items:center;font:10px Georgia,serif;margin-top:3px}.result-card{background:var(--ink);color:white;border-radius:var(--radius);overflow:hidden;box-shadow:0 8px 18px #2d2d2d0a}.diagram{margin:0;padding:12px 24px 0;background:#333333}.diagram svg{width:100%;height:156px;display:block}.diagram figcaption{text-align:center;font-size:10px;letter-spacing:1px;color:#a2a2a2;padding:0 0 12px}.formula-mark{display:flex;align-items:center;justify-content:space-between;padding:22px 30px;border-bottom:1px solid #4c4c4c;color:#959595}.formula-mark>span{font-size:50px;line-height:1;font-family:Georgia,serif;color:var(--lime)}.formula-mark>div{font-size:11px;letter-spacing:2px;line-height:1.7}#results{padding:27px 30px 23px}.result-eyebrow{font-size:10px;letter-spacing:2px;color:var(--lime);font-weight:700;margin-bottom:8px}#results h2{font-size:16px;font-weight:500;color:#cdcdcd}.result-number{font-family:Manrope,system-ui,sans-serif;font-size:clamp(40px,4.5vw,66px);font-weight:700;line-height:1.3;letter-spacing:-2px;margin:9px 0 23px;overflow-wrap:anywhere}.result-number>span{font-size:20px;letter-spacing:0;color:#ababab;font-weight:400;margin-left:8px;white-space:normal}.result-details{border-top:1px solid #4c4c4c;padding-top:7px}.result-details>div{display:flex;justify-content:space-between;align-items:baseline;gap:12px;padding:9px 0;font-size:12px;color:#bfbfbf}.result-details strong{font-size:15px;font-family:Manrope,sans-serif;color:#f3f3f3;text-align:right;white-space:nowrap}.result-details small{font-size:12px;font-weight:400;color:#a7a7a7}.result-foot{font-size:11px;color:#9d9d9d;margin-top:12px}.error{padding:24px;color:#d6d6d6;line-height:1.6}.input-card .error{color:#424242;background:#f3f3f3}.guidance{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;margin:35px 0 0}.section-label{font-size:10px;font-weight:700;letter-spacing:1.8px;color:#7f7f7f}.guidance h2{font-size:18px;margin:7px 0 14px;letter-spacing:-.4px}.guidance p{font-size:14px;line-height:1.75;color:#757575}.guidance .formula{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:13px;color:#474747;background:#eeeeee;border:1px solid #e2e2e2;border-radius:8px;padding:17px;line-height:1.8;margin-bottom:14px}.assumptions{border-left:1px solid #e1e1e1;padding-left:32px}.assumptions a{color:#636363;font-size:13px;text-decoration:underline;display:inline-block;margin-top:12px}.assumptions .scope-note{font-size:12px;color:#949494;margin-top:14px}.more-tools{border-top:1px solid #dedede;margin-top:35px;padding:28px 0;display:grid;grid-template-columns:.65fr 1.35fr;gap:32px;align-items:center}.more-tools h2{font-size:23px;letter-spacing:-.7px;margin-top:8px;max-width:240px}.related{display:grid;grid-template-columns:1fr 1fr;gap:10px}.related a{background:white;border:1px solid var(--line);border-radius:7px;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:15px;font-size:13px;transition:border-color .15s}.related a:hover{border-color:#929292}.related a>span:last-child{color:#8b8b8b}footer{border-top:1px solid #e2e2e2;display:flex;justify-content:space-between;gap:20px;padding:22px 0;color:#909090;font-size:11px}footer>span:first-child{font-size:11px;color:#636363;font-weight:700;letter-spacing:.7px}footer small{font-size:11px;font-weight:400;letter-spacing:0}.mobile-trade{display:none}[hidden]{display:none!important}@media(min-width:1650px){main{padding-top:42px}.workspace{gap:32px}.input-card{padding:34px}.fields{gap:26px}.diagram svg{height:176px}}
@media(max-width:1180px){.site-layout{grid-template-columns:225px minmax(0,1fr)}.sidebar{padding-left:8px;padding-right:8px}.trade-link{gap:8px;font-size:13px}.trade-number{font-size:10px}.trade-count{display:none}.header-description{display:none}.library-count{margin-left:auto}.page-heading{align-items:flex-start}.page-heading h1{font-size:29px}.unit-control button{padding:8px 12px}.workspace{grid-template-columns:minmax(0,1.05fr) minmax(270px,.95fr);gap:18px}.input-card{padding:22px}.fields{gap:18px 12px}.input-wrap input{padding:11px 8px}.input-wrap span{padding-right:8px;font-size:12px}.card-heading{align-items:flex-start;flex-wrap:wrap}.guidance{gap:24px}.assumptions{padding-left:24px}}
@media(max-width:950px){.site-layout{grid-template-columns:1fr}.sidebar{display:none}main{padding:24px 26px 0}.mobile-trade{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:26px;padding-bottom:20px;border-bottom:1px solid var(--line)}.mobile-trade label{font-size:14px;font-weight:600}.mobile-trade select{padding:10px 30px 10px 12px;background:white;border:1px solid #d6d6d6;max-width:70%;color:var(--ink)}.breadcrumb{font-size:10px}.input-card{padding:26px}.card-heading{flex-wrap:nowrap}}
@media(max-width:640px){.site-header{height:68px;padding:0 20px;gap:15px}.brand{font-size:18px;gap:7px}.brand svg{width:28px}.library-count{font-size:11px}.library-count span{margin:0 4px}.library-count strong{font-size:12px}main{padding:21px 18px 0}.mobile-trade{margin-bottom:22px;gap:12px}.mobile-trade label{font-size:12px}.mobile-trade select{font-size:14px;max-width:72%;padding-right:10px}.page-heading{display:block}.page-heading h1{font-size:29px;letter-spacing:-1px}.page-heading p{font-size:14px}.unit-control{width:max-content;margin-top:20px}.unit-control button{padding:8px 20px}.calculator-tabs{margin-bottom:20px}.calculator-tabs a{font-size:13px;padding:12px}.workspace{grid-template-columns:1fr;gap:20px}.input-card{padding:22px 20px}.input-intro{font-size:13px}.fields{gap:20px 16px;margin-top:25px}.field label{font-size:14px}.card-heading h2{font-size:17px}.text-button{font-size:12px;padding:3px}.diagram svg{height:150px}.result-number{font-size:57px}.guidance{grid-template-columns:1fr;gap:25px;margin-top:28px}.assumptions{padding-left:0;border-left:0;border-top:1px solid var(--line);padding-top:25px}.more-tools{grid-template-columns:1fr;gap:20px}.more-tools h2{max-width:none;font-size:21px}.related{gap:10px}.related a{font-size:13px;padding:13px}footer{flex-direction:column;gap:8px;padding-bottom:25px}.input-wrap span{font-size:12px}.result-details>div{font-size:13px}#results h2{font-size:17px}.result-foot{font-size:12px}}
@media(max-width:360px){.library-count{display:none}.fields{grid-template-columns:1fr}.card-heading{flex-wrap:wrap}.related{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
@media print{.sidebar,.site-header,.mobile-trade,.unit-control,.calculator-tabs,.more-tools,footer,.text-button{display:none}.site-layout{display:block}main{padding:0}.result-card{background:#fff;color:#000;border:1px solid #ccc}#results h2,.result-number,.result-details strong,.result-details>div{color:#000}.diagram,.formula-mark{display:none}.workspace{grid-template-columns:1fr 1fr}}

/* Keep the longer brand readable on narrow screens. */
.brand{flex-shrink:0;letter-spacing:0}.brand>svg{flex-shrink:0}.brand>span{display:flex;flex-direction:column;line-height:1.1}.brand>span>span{font-size:.72em;letter-spacing:.08em;margin-top:3px}