:root{color:#172c29;background:#f6f8f5;font-family:ui-sans-serif,system-ui,sans-serif;font-size:16px;line-height:1.6}*{box-sizing:border-box}body{margin:0}.page{max-width:920px;margin:0 auto;padding:24px 20px 40px}h1{letter-spacing:-.025em;margin:0 0 18px;font-size:clamp(1.45rem,4.5vw,2rem);line-height:1.2}h2{margin:30px 0 12px;font-size:1.4rem;line-height:1.3}p{margin:0 0 16px}a{color:#17614f;text-underline-offset:.2em}a:focus-visible{outline-offset:3px;outline:3px solid #2278ae}.calculator-shell{background:#fff;border:1px solid #cad8d1;border-radius:10px;padding:6px}.explanation{max-width:720px}.sources{margin-top:30px}.sources summary{cursor:pointer;min-height:44px;padding-block:8px;font-size:1.4rem;font-weight:650;line-height:1.3}.sources summary:focus-visible{outline-offset:3px;outline:3px solid #2278ae}.sources ul{margin-top:12px;padding-left:24px}.sources li+li{margin-top:12px}.ad-slot{text-align:center;border:1px solid #cad8d1;min-height:120px;margin-top:24px;padding:12px;font-size:.8rem}[hidden]{display:none!important}footer{border-top:1px solid #cad8d1;margin-top:30px;padding-top:18px;font-size:.85rem}@media (width<=400px){.page{padding:20px 10px 32px}}