:root{--ink:#182822;--muted:#607268;--line:#d9e0d9;--green:#235f46;--paper:#f7f8f3;--lime:#d8f283}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.7 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}a{color:inherit;text-underline-offset:4px}header,main,footer{max-width:1240px;margin:auto;padding:0 40px}header{min-height:110px;display:flex;align-items:center;justify-content:space-between;gap:28px;border-bottom:1px solid var(--line)}.brand{font-size:30px;font-weight:850;text-decoration:none;display:flex;align-items:center;gap:8px;letter-spacing:-1px}.brand>span{color:var(--green);margin-left:-7px}.brand small{letter-spacing:1.6px;font-size:9px;max-width:120px;margin-left:15px;line-height:1.5}nav{display:flex;gap:25px;font-size:14px}nav a{text-decoration:none}nav a:hover,a:hover{color:var(--green)}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(38px,4.5vw,62px);line-height:1.12;letter-spacing:-2.6px;margin-bottom:28px;font-weight:650}h1 em{color:var(--green);font-style:normal}h2{font-size:32px;line-height:1.2;letter-spacing:-1px;font-weight:600}h3{font-size:23px;line-height:1.3;font-weight:600;letter-spacing:-.5px}.eyebrow{font-size:10px;letter-spacing:1.8px;font-weight:700;color:var(--green);margin-bottom:23px}.lead{font-size:18px;color:var(--muted);max-width:640px;line-height:1.75}.hero{display:grid;grid-template-columns:1.3fr 1fr;gap:55px;padding:76px 0 58px}.actions{display:flex;align-items:center;gap:24px;font-size:13px;margin:32px 0 40px}.button{display:inline-block;background:var(--green);color:white;text-decoration:none;border:0;padding:15px 21px;border-radius:5px;font:600 13px/1.5 system-ui;cursor:pointer}.button:hover{background:#153c2b;color:white}.hero-note{display:flex;gap:22px;font-size:9px;letter-spacing:1px;color:var(--muted)}.chip-visual{background:radial-gradient(circle at 50% 50%,#e0e9d5 0,transparent 65%),repeating-linear-gradient(0deg,transparent,transparent 29px,#dce3d7 30px),repeating-linear-gradient(90deg,transparent,transparent 29px,#dce3d7 30px);border:1px solid var(--line);border-radius:10px;padding:25px;display:flex;flex-direction:column;justify-content:space-between;align-items:center;min-height:410px;position:relative}.diagram-label,.diagram-foot{font-size:9px;letter-spacing:1.3px;color:#6c7e6d;align-self:flex-start}.diagram-foot{font-size:10px;letter-spacing:0}.chip{width:255px;background:#173f32;border:9px solid #497259;border-radius:12px;box-shadow:0 0 0 1px #b4c8ab,0 0 0 12px #d9e5d1,18px 23px 30px #53784e24;padding:17px;color:#d9efc5;transform:rotate(-7deg)}.chip-top{font-size:24px;display:flex;align-items:center;justify-content:space-between}.chip small{font-size:8px;letter-spacing:1px}.blocks{display:grid;grid-template-columns:1fr 1fr;gap:7px;margin-top:14px}.blocks>div{background:#295340;border:1px solid #5c8057;border-radius:3px;padding:12px 5px;text-align:center;font-size:9px;letter-spacing:.7px}.blocks .wide{grid-column:span 2;background:#b8d684;color:#193f2c}.blocks strong{display:block;font-size:12px;margin-top:6px}.chip-bottom{font-size:9px;text-align:center;margin-top:15px;letter-spacing:2px}.strip{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:23px 0;gap:30px}.strip>div{display:flex;align-items:center;gap:15px}.strip strong{font-size:27px;line-height:1;font-weight:500}.strip span{font-size:12px;color:var(--muted)}main>section:not(.hero):not(.strip):not(.page-intro):not(.calculator):not(.prose){margin:65px 0}.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:28px}.section-head .eyebrow{margin-bottom:13px}.section-head h2{margin:0}.section-head>a{font-size:12px;white-space:nowrap}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.card{padding:26px;border:1px solid var(--line);border-radius:6px;text-decoration:none;display:flex;flex-direction:column;background:#fffefa;transition:transform .15s,border-color .15s}.card:hover{transform:translateY(-3px);border-color:var(--green)}.card .eyebrow{display:flex;justify-content:space-between;font-size:9px;margin-bottom:30px}.card b{font-size:16px}.card p{font-size:13px;color:var(--muted);margin-bottom:30px}.read{font-size:11px;border-top:1px solid var(--line);padding-top:17px;margin-top:auto;display:flex;justify-content:space-between}.lab-promo{display:grid;grid-template-columns:1.3fr 1fr;gap:60px;padding:42px;background:#eaf0e3;border-radius:8px}.lab-promo p{font-size:14px;color:var(--muted);max-width:570px}.formula{align-self:center;text-align:center;color:var(--green);font:25px/1.7 Georgia,serif;overflow-wrap:anywhere}.formula>span{margin-left:35px}.formula hr{max-width:220px;border:0;border-top:1px solid #849b6a}.formula small{font-size:25px}.notice{font-size:12px;padding:22px;border-top:1px solid var(--line);color:var(--muted);margin:45px 0}footer{margin-top:65px;padding-top:30px;padding-bottom:30px;border-top:1px solid var(--line);display:flex;align-items:center;gap:22px;flex-wrap:wrap;font-size:11px;color:var(--muted)}footer p{margin:0}footer>span{margin-left:auto}.page-intro{padding:65px 0 35px;max-width:850px}.page-intro h1{max-width:840px}.prose{max-width:780px;margin:20px 0 65px}.prose h2{margin-top:38px;font-size:26px}.prose p{color:#465b50}.breadcrumbs{margin:30px 0;font-size:11px;color:var(--muted)}.article-layout{display:grid;grid-template-columns:minmax(0,780px) 240px;gap:75px;margin:45px 0 70px}article h1{font-size:49px}article section{margin-top:40px}article h2{font-size:26px}article section p{font-size:17px;color:#455b4f;line-height:1.85}.toc{align-self:start;position:sticky;top:25px;border-left:1px solid var(--line);padding-left:22px}.toc a{display:block;font-size:12px;text-decoration:none;margin:14px 0}.toc hr{border:0;border-top:1px solid var(--line);margin:25px 0}.references{border-top:1px solid var(--line);margin-bottom:35px}.references p{font-size:13px}.references li{font-size:13px;margin:12px 0}.search-label{display:block;font-size:12px;font-weight:600;margin:25px 0 8px}input{font:inherit;padding:13px 16px;border:1px solid #a5b6a5;background:#fff;border-radius:4px;max-width:100%;color:var(--ink)}#search{width:100%}#search-status{font-size:12px;margin:10px 0;color:var(--muted)}.empty{margin:30px 0}.calculator{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line);border-radius:8px;overflow:hidden;max-width:950px}.calculator form{padding:35px;display:grid;gap:12px}.calculator label{font-size:14px}.calculator .button{margin-top:15px}.result{background:#e8f0df;padding:35px;display:flex;flex-direction:column;justify-content:center}.result output{font-size:64px;letter-spacing:-3px;color:var(--green);line-height:1.4}.result p{font-size:13px}.glossary{max-width:900px}.glossary>div{display:grid;grid-template-columns:220px 1fr;border-top:1px solid var(--line);padding:24px 0;gap:20px}.glossary dt{font-size:20px;font-weight:600}.glossary dd{margin:0;color:var(--muted)}.skip{position:absolute;left:20px;top:-100px;padding:10px;background:white;z-index:10}.skip:focus{top:10px}:focus-visible{outline:3px solid #a2bc44;outline-offset:4px}[hidden]{display:none!important}@media(max-width:900px){header,main,footer{padding-left:24px;padding-right:24px}.brand small{display:none}.hero{gap:28px}.chip-visual{min-height:370px;padding:20px}.chip{width:215px}.grid{grid-template-columns:repeat(2,minmax(0,1fr))}.article-layout{grid-template-columns:minmax(0,1fr);gap:20px}.toc{position:static;order:-1;display:none}.hero-note{gap:12px;font-size:8px}h1{letter-spacing:-1.6px}.lab-promo{gap:20px;padding:28px}.strip>div{gap:10px}.strip span{font-size:11px}}@media(max-width:620px){header{padding-top:18px;padding-bottom:18px;min-height:0;flex-wrap:wrap;gap:18px}nav{gap:17px;flex-wrap:wrap;font-size:12px}.brand{font-size:27px}.hero{grid-template-columns:1fr;padding:40px 0;gap:36px}.hero h1{font-size:43px}.hero .lead{font-size:16px}.chip-visual{min-height:345px}.chip{width:230px}.actions{flex-wrap:wrap;gap:17px;margin-bottom:25px}.hero-note{justify-content:space-between}.strip{gap:10px}.strip>div{display:block}.strip strong{display:block;margin-bottom:9px}.strip span{font-size:10px}.grid{grid-template-columns:1fr}.section-head{display:block}.section-head>a{display:inline-block;margin-top:15px}h2{font-size:27px}.lab-promo{grid-template-columns:1fr}.formula{padding:20px}.page-intro{padding-top:40px}.page-intro h1,article h1{font-size:37px}.calculator{grid-template-columns:1fr}.calculator form,.result{padding:24px}.glossary>div{grid-template-columns:1fr;gap:7px}footer{display:block}footer>a,footer>span{display:block;margin:12px 0}main>section:not(.hero):not(.strip):not(.page-intro):not(.calculator):not(.prose){margin:45px 0}}
