:root{color-scheme:light;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#141714;background:#f7f8f4}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;line-height:1.65}a{color:#3e641c}header,main,footer{width:min(920px,calc(100% - 36px));margin:auto}.site-nav{padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:10px;color:#141714;text-decoration:none;font-weight:900}.brand img{width:36px;height:36px}.site-nav nav{display:flex;gap:16px;font-weight:800}.hero{padding:64px 0 35px}.eyebrow{color:#5f842f;font-size:.78rem;font-weight:900;letter-spacing:.08em;text-transform:uppercase}h1{max-width:800px;margin:.2em 0;font-size:clamp(2.5rem,7vw,4.8rem);line-height:1.02}h2{margin-top:2.1em;font-size:clamp(1.6rem,4vw,2.4rem);line-height:1.15}h3{margin-top:1.7em}.lead{max-width:780px;color:#505750;font-size:1.2rem}.cta{display:inline-flex;margin-top:18px;padding:13px 20px;border-radius:999px;background:#141714;color:#fff;text-decoration:none;font-weight:900}.formula,.example,.note{margin:24px 0;padding:22px;border-radius:10px}.formula{background:#111410;color:#e7ff67;font-size:1.1rem;font-weight:800}.example{background:#fff;border:1px solid #dfe2da}.note{background:#fff5e7;border:1px solid #efc887}.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.card{padding:22px;background:#fff;border:1px solid #dfe2da;border-radius:10px}.card h3{margin-top:0}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse;background:#fff}th,td{padding:12px;text-align:left;border-bottom:1px solid #e1e4dc}th{font-size:.82rem;color:#596159}.related{margin-top:50px;padding:25px;background:#eaf1df;border-radius:10px}.related a{display:inline-block;margin:5px 14px 5px 0;font-weight:800}footer{margin-top:55px;padding:25px 0 45px;border-top:1px solid #dfe2da;color:#626862;font-size:.9rem}
.jump-links{display:flex;flex-wrap:wrap;align-items:center;gap:8px 18px;margin-bottom:42px;padding:18px 20px;background:#fff;border:1px solid #dfe2da;border-radius:10px}.jump-links a{font-weight:800}.calculator{scroll-margin-top:20px;padding:30px;background:#eef4e5;border:1px solid #d5e2c3;border-radius:16px}.calculator h2{margin:.15em 0}.section-heading>p:last-child{max-width:760px}.calculator-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:24px}.calculator-grid label{display:grid;gap:7px;font-weight:800}.input-wrap{display:flex;align-items:center;background:#fff;border:1px solid #c8d0bf;border-radius:9px;overflow:hidden}.input-wrap:focus-within{outline:3px solid rgba(95,132,47,.22);border-color:#5f842f}.input-wrap input{width:100%;border:0;outline:0;padding:13px 14px;font:inherit;background:transparent}.input-wrap b{padding:0 14px;color:#626862}.calculator-grid select{width:100%;min-height:52px;padding:10px 12px;border:1px solid #c8d0bf;border-radius:9px;background:#fff;color:#141714;font:inherit}.calculator-result{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:22px}.calculator-result div{display:grid;gap:4px;padding:18px;background:#111410;color:#fff;border-radius:10px}.calculator-result span{color:#cbd0c5;font-size:.86rem}.calculator-result strong{color:#e7ff67;font-size:1.35rem}.muted{color:#626862;font-size:.94rem}.calculation-steps{display:grid;gap:10px;padding:0;list-style:none}.calculation-steps li{display:flex;justify-content:space-between;gap:18px;padding:12px 0;border-bottom:1px solid #e1e4dc}.calculation-steps strong{text-align:right}.faq details{margin:10px 0;padding:16px 18px;background:#fff;border:1px solid #dfe2da;border-radius:10px}.faq summary{cursor:pointer;font-weight:900}.faq details p{margin-bottom:0}.sources ul{padding-left:22px}.sources li{margin:8px 0}
.calculator-result--four{grid-template-columns:repeat(4,minmax(0,1fr))}.calculator-result .metric--negative strong{color:#ff9b8a}.result-message{margin:14px 0 0;font-weight:800;color:#315711}.result-message--negative{color:#9f2f21}
.key-points{margin:0 0 32px;padding:24px 26px;background:#111410;color:#fff;border-radius:14px}.key-points h2{margin-top:0;color:#e7ff67}.key-points li{margin:9px 0}.checklist{display:grid;gap:10px}.checklist div{display:grid;grid-template-columns:150px 1fr;gap:18px;padding:16px 18px;background:#fff;border:1px solid #dfe2da;border-radius:10px}.product-bridge{margin:48px 0;padding:30px;background:#111410;color:#fff;border-radius:16px}.product-bridge h2{margin:.15em 0;color:#fff}.product-bridge>div>p:last-child{max-width:760px;color:#d1d6ce}.product-features{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:24px}.product-features span{display:block;padding:18px;background:#20251f;border:1px solid #3b4338;border-radius:10px;color:#d1d6ce}.product-features strong{display:block;margin-bottom:6px;color:#e7ff67}.product-actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:24px}.product-actions .cta{margin-top:0;background:#e7ff67;color:#111410}.product-actions>a:not(.cta){color:#fff;font-weight:800}.note h2{margin-top:0}
@media(max-width:820px){.calculator-result--four{grid-template-columns:repeat(2,minmax(0,1fr))}.product-features{grid-template-columns:1fr}}@media(max-width:680px){.site-nav nav a:first-child{display:none}.hero{padding-top:35px}.grid,.calculator-grid,.calculator-result,.calculator-result--four{grid-template-columns:1fr}h1{font-size:2.7rem}.calculator,.product-bridge{padding:22px 18px}.calculation-steps li,.checklist div{display:grid;grid-template-columns:1fr}.calculation-steps strong{text-align:left}}