:root{--ink:#153a32;--green:#08724f;--lime:#ddf28b;--muted:#667970;--line:#dae5df;--pale:#eff6f2;--bg:#f7faf8}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:var(--bg);font:16px/1.6 Arial,sans-serif}button,input,select{font:inherit}a{color:inherit;text-decoration:none}a:hover{text-decoration:underline}button,a,input,select,summary{outline-offset:4px}button{cursor:pointer}header{background:white;border-bottom:1px solid var(--line)}nav{max-width:1200px;padding:22px 30px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{font-size:24px;font-weight:800;letter-spacing:-1px;display:flex;align-items:center;gap:10px}.brandmark{background:var(--green);color:var(--lime);font-family:Georgia,serif;border-radius:8px;width:34px;height:34px;display:grid;place-items:center}.navlinks{display:flex;gap:26px;font-size:14px;font-weight:600}.navlinks a:first-child{color:var(--green)}main{max-width:1200px;margin:auto;padding:33px 30px 55px}.eyebrow{text-transform:uppercase;font-size:12px;letter-spacing:1.5px;font-weight:700;color:var(--green)}.intro{display:flex;justify-content:space-between;gap:30px;align-items:center;margin-bottom:26px}.intro p{color:var(--muted);margin:10px 0 0;max-width:620px}h1{font-family:Georgia,serif;font-weight:500;font-size:46px;letter-spacing:-1.2px;line-height:1.15;margin:7px 0}h2{font-size:23px;letter-spacing:-.4px;line-height:1.3;margin:0 0 14px}h3{font-size:17px;margin:0 0 8px}p{margin:10px 0}.tag{border:1px solid var(--line);padding:8px 13px;font-size:13px;background:white;border-radius:20px;white-space:nowrap}.workspace{display:grid;grid-template-columns:1.15fr 1fr;gap:24px;align-items:start}.panel{border:1px solid var(--line);border-radius:14px;background:white;padding:27px}.tasktabs{display:flex;gap:5px;border-bottom:1px solid var(--line);padding-bottom:17px;margin-bottom:23px}.tasktabs button{border:0;background:transparent;color:var(--muted);font-size:14px;padding:9px 12px;border-radius:6px;font-weight:600}.tasktabs button.active{background:var(--pale);color:var(--green)}label{display:block;font-size:14px;font-weight:600}.basis{width:100%;background:white;border:1px solid #becfc4;border-radius:7px;padding:12px;color:var(--ink);margin-top:6px;font-size:15px}.basisnote{font-size:13px;color:var(--muted);margin-bottom:23px;min-height:42px}.field{margin-top:20px}.inputgroup{display:flex;border:1px solid #becfc4;border-radius:7px;overflow:hidden;margin-top:7px;background:white}.inputgroup input{border:0;background:none;min-width:0;width:100%;font-size:22px;font-weight:500;padding:11px 13px;color:var(--ink)}.inputgroup select,.suffix{border:0;border-left:1px solid var(--line);background:#f5f8f6;color:var(--muted);padding:10px 12px;font-size:14px;min-width:78px}.inputgroup:focus-within{outline:2px solid var(--green);outline-offset:2px}input:focus,select:focus{outline-offset:-2px}.fieldhint{font-size:12px;color:var(--muted);margin:6px 0}.quick{display:flex;gap:7px;align-items:center;margin-top:10px;font-size:12px;color:var(--muted)}.quick button{font-size:13px;border:1px solid var(--line);background:white;padding:5px 11px;border-radius:5px;color:var(--green)}.actions{display:flex;gap:12px;align-items:center;margin-top:25px}.primary{background:var(--green);border:0;color:white;border-radius:7px;padding:13px 18px;font-weight:700;flex:1}.primary:hover{background:#045a3e}.reset{background:none;color:var(--muted);border:0;padding:10px;font-size:14px}.error{font-size:14px;color:#a62727;margin-top:10px}.error:empty{display:none}.result{background:#123f33;color:white;border-color:#123f33;min-height:536px;position:relative;overflow:hidden}.result .eyebrow{color:#c5dacf}.resulthead{display:flex;justify-content:space-between;align-items:center;gap:12px}.resulthead .pill{font-size:12px;border:1px solid #567b6b;border-radius:4px;padding:3px 8px;color:#d6e7dc}.result h2{font-size:18px;font-weight:500;color:#e1ede5;margin:30px 0 6px}.big{display:flex;align-items:baseline;gap:12px}.big strong{font-size:80px;letter-spacing:-3px;line-height:1.2;color:var(--lime);font-weight:600;font-variant-numeric:tabular-nums;overflow-wrap:anywhere;min-width:0}.big span{font-size:25px;color:#c4d8cb}.equiv{color:#b6ccbf;font-size:14px;margin:2px 0 22px}.recipe{background:#ffffff0b;border:1px solid #527364;border-radius:8px;padding:15px 18px}.recipecell{display:flex;justify-content:space-between;gap:15px;font-size:14px;padding:6px 0}.recipecell span{color:#c1d6c9}.recipecell b{font-weight:500;text-align:right}.composition{margin:19px 0 17px}.bar{height:7px;background:#759b86;border-radius:5px;overflow:hidden}.bar span{display:block;height:100%;background:var(--lime);min-width:0}.legend{display:flex;justify-content:space-between;font-size:12px;color:#c2d6c9;margin-top:8px}.resultnote{font-size:13px;color:#c3d7c9;border-top:1px solid #42685a;padding-top:17px}.mathline{font-family:monospace;font-size:13px;color:#d9eacb;margin-top:12px;overflow-wrap:anywhere}.under{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:24px}.compare{padding:24px 27px;background:#edf5e9;border:1px solid #d0dfcb;border-radius:13px}.compare p{color:var(--muted);font-size:14px}.compare h2{font-size:20px}.comparegrid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:20px}.comparegrid small{font-size:13px;color:var(--muted);display:block}.comparegrid strong{font-size:27px;font-weight:600}.sourcebasis{font-size:13px;border-left:2px solid var(--green);padding-left:12px;color:var(--muted);margin:18px 0}.notice{padding:24px 27px;background:white;border:1px solid var(--line);border-radius:13px}.notice h2{font-size:20px}.notice p{font-size:14px;color:var(--muted)}.reading{margin-top:46px}.readinghead{display:flex;justify-content:space-between;align-items:end;margin-bottom:23px}.readinghead h2{font-family:Georgia,serif;font-size:32px;font-weight:500;letter-spacing:-.7px;margin:0}.readinghead span{color:var(--muted);font-size:13px}.guidegrid{display:grid;grid-template-columns:1.1fr .9fr;gap:40px}.article p{color:var(--muted);font-size:15px}.formula{background:var(--pale);border-left:3px solid var(--green);padding:16px 18px;font:14px/1.8 monospace;margin:18px 0}.reference{border:1px solid var(--line);border-radius:10px;background:white;padding:24px}table{border-collapse:collapse;width:100%;font-size:14px}td,th{text-align:left;padding:11px 8px;border-bottom:1px solid var(--line)}th{font-weight:600;font-size:12px;color:var(--muted)}.tablewrap{overflow:auto}.methodcards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:30px}.methodcard{border-top:2px solid var(--green);padding:18px 0}.methodcard p{font-size:14px;color:var(--muted)}.methodcard b{color:var(--green);font-size:12px;letter-spacing:1px}.featurephoto{width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:10px;margin-bottom:20px;display:block}.faqgrid{display:grid;grid-template-columns:1fr 1fr;gap:0 36px;margin-top:20px}details{border-bottom:1px solid var(--line);padding:17px 0}summary{cursor:pointer;font-weight:600;font-size:15px}details p{color:var(--muted);font-size:14px}.sources{margin-top:37px;border-block:1px solid var(--line);padding:23px 0;display:flex;justify-content:space-between;gap:30px;font-size:13px;color:var(--muted)}.sources a{text-decoration:underline;display:block;margin:5px 0}footer{padding:23px 30px 30px;max-width:1200px;margin:auto;color:var(--muted);display:flex;justify-content:space-between;gap:20px;font-size:13px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}[hidden]{display:none!important}@media(max-width:900px){.workspace{grid-template-columns:1fr}.result{min-height:0}.intro .tag{display:none}.under{grid-template-columns:1fr}.guidegrid{gap:25px}.big strong{font-size:72px}}@media(max-width:600px){main{padding:25px 16px 40px}nav{padding:18px 16px}.navlinks{gap:14px;font-size:12px}.navlinks a:last-child{display:none}.brand{font-size:21px}h1{font-size:36px}.panel{padding:20px}.tasktabs{gap:0}.tasktabs button{padding:8px 9px;font-size:13px}.guidegrid,.methodcards,.faqgrid{grid-template-columns:1fr}.readinghead{display:block}.readinghead span{display:block;margin-top:10px}.readinghead h2{font-size:28px}.compare,.notice{padding:20px}.sources,footer{flex-direction:column}.big strong{font-size:64px}.comparegrid strong{font-size:24px}}@media(prefers-reduced-motion:no-preference){.primary,.quick button{transition:background .15s ease}}
/* Shared pages and calculation tools */
.navlinks{flex-wrap:wrap}.footerlinks{display:flex;flex-wrap:wrap;gap:18px}.footerlinks button{border:0;background:none;padding:0;color:inherit;font-size:inherit;text-decoration:underline}.breadcrumb{display:flex;flex-wrap:wrap;gap:12px;color:var(--muted);font-size:14px;margin-bottom:20px}.breadcrumb a{text-decoration:underline}.resulttools{display:flex;gap:8px;flex-wrap:wrap;margin-top:22px}.resulttools button{background:#ffffff0d;color:white;border:1px solid #759b86;border-radius:6px;padding:9px 12px;font-size:14px}.resulttools button:hover{background:#ffffff20}.resulttools button:disabled{opacity:.45;cursor:not-allowed}.toolstatus{font-size:14px;color:#d6e7dc;min-height:1.5em}.toolstatus:empty{display:none}#copyfallback label{color:#d6e7dc}#copytext{width:100%;margin-top:8px;padding:10px;font:14px/1.6 monospace;border-radius:6px;resize:vertical}#printsummary{display:none}.linkcards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.linkcard{display:block;background:white;border:1px solid var(--line);border-radius:10px;padding:22px;transition:border-color .15s}.linkcard:hover{border-color:var(--green);text-decoration:none}.linkcard h3{margin:12px 0 8px;font-size:20px;line-height:1.3}.linkcard p{font-size:15px;color:var(--muted);margin:0}.contentlayout{display:grid;grid-template-columns:minmax(0,760px) minmax(180px,1fr);gap:54px;margin-top:48px}.prose{max-width:760px}.prose section{scroll-margin-top:24px;margin-bottom:35px}.prose h2{font-family:Georgia,serif;font-size:28px;font-weight:500}.prose p,.prose li{font-size:16px;color:var(--ink)}.prose a{text-decoration:underline;text-underline-offset:3px;color:var(--green)}.prose li{margin:10px 0}.prose ol{padding-left:24px}.prose .formula{overflow-wrap:anywhere}.contents{border-left:1px solid var(--line);padding-left:24px;align-self:start;position:sticky;top:24px}.contents h2{font-size:16px}.contents a{display:block;font-size:14px;line-height:1.5;margin:14px 0;color:var(--green)}.reviewdate{font-size:13px;color:var(--muted);margin-top:28px}caption{text-align:left;font-weight:600;margin-bottom:12px;font-size:14px}.tablewrap th{white-space:nowrap}.tablewrap tbody th{color:var(--ink);font-size:14px}.buttonlink{display:inline-block;background:var(--green);color:white!important;padding:12px 20px;border-radius:7px}.contact-email{font-size:22px;overflow-wrap:anywhere}.analytics-choice{position:fixed;bottom:18px;left:18px;right:18px;max-width:580px;margin:auto;padding:22px;background:white;border:1px solid var(--line);border-radius:12px;box-shadow:0 10px 40px #153a3230;z-index:10}.analytics-choice h2{font-size:20px}.analytics-choice p{font-size:14px}.analytics-choice a{text-decoration:underline}.analytics-choice div{display:flex;gap:12px}.analytics-choice button{padding:9px 14px;background:white;border:1px solid var(--green);border-radius:6px;color:var(--green)}.analytics-choice button:last-child{background:var(--green);color:white}.sr-only:focus{clip:auto;width:auto;height:auto;background:white;padding:12px;z-index:100}.article p{font-size:16px}.fieldhint,.basisnote,.quick{font-size:14px}.quick button,.tasktabs button{font-size:14px}.tag{font-size:14px}.result .legend{flex-wrap:wrap;gap:8px}.formula{font-size:14px}.navlinks a:last-child{display:block}
@media(max-width:900px){.linkcards{grid-template-columns:repeat(2,minmax(0,1fr))}.contentlayout{grid-template-columns:1fr;gap:20px}.contents{position:static;border-left:0;border-top:1px solid var(--line);padding:20px 0}.readinghead{gap:20px}}
@media(max-width:600px){nav{align-items:start;flex-wrap:wrap}.navlinks{gap:16px;font-size:14px;flex-basis:100%}.navlinks a:last-child{display:block}.linkcards{grid-template-columns:1fr}.contentlayout{margin-top:32px}.linkcard{padding:20px}.readinghead{display:block}.readinghead a{display:inline-block;margin-top:10px;font-size:14px}.big strong{font-size:clamp(36px,14vw,64px)}.recipe{padding:12px}.recipecell b{overflow-wrap:anywhere}.resulttools button{flex:1}.comparegrid{gap:12px}.tasktabs{flex-wrap:wrap}.contact-email{font-size:20px}}
@media print{body{background:white;color:black;font-size:12pt}header,footer,.breadcrumb,.intro,.under,.contentlayout,.related,.reading,.sources,.analytics-choice{display:none!important}main{padding:0}.workspace{display:block}.workspace .panel:first-child{display:none}.result{background:white;color:black;border:1px solid #aaa;min-height:0}.result h2,.result .big strong,.result .big span,.result .equiv,.result .resultnote,.result .mathline,.result .recipecell span,.result .eyebrow,.result .pill{color:black}.resulttools,.toolstatus,#copyfallback,.composition{display:none!important}.recipe{border-color:#aaa}.big strong{font-size:36pt}.result{break-inside:avoid}#printsummary{display:block;white-space:pre-wrap;font:11pt/1.5 monospace;margin-bottom:20px}}

.linkcard p{font-size:16px}
@media print{.content-page .intro,.content-page .contentlayout{display:block!important}.content-page .intro .eyebrow,.contents{display:none!important}.content-page .prose{max-width:none}.content-page h1{font-size:26pt}.content-page .prose section{break-inside:avoid}.content-page a{color:black}}