:root{color-scheme:light;--paper:#f5f3eb;--ink:#263b35;--muted:#5c6b62;--line:#c6cfc3;--accent:#325e4c;--white:#fdfdf8;--error:#9b342b;font-family:ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);line-height:1.5}a{color:inherit;text-underline-offset:.22em}a:hover{color:var(--accent)}.site-header,main,footer{width:min(1064px,calc(100% - 64px));margin-inline:auto}.site-header{display:flex;align-items:center;justify-content:space-between;padding:28px 0;border-bottom:1px solid var(--line)}.wordmark{font-size:27px;font-weight:750;letter-spacing:-1px;text-decoration:none}.wordmark span{display:inline-block;margin-left:14px;font-weight:400}.header-note,.eyebrow,.number{font-size:12px;letter-spacing:.08em}.header-note{color:var(--muted)}.intro{padding:58px 0 36px;max-width:620px}.eyebrow{text-transform:uppercase;color:var(--muted);margin:0 0 24px}h1{font-family:Georgia,"Times New Roman",serif;font-weight:400;font-size:clamp(42px,7vw,72px);line-height:1.02;letter-spacing:-.045em;margin:0 0 23px}.lede{max-width:470px;color:var(--muted);font-size:17px;line-height:1.65;margin:0}.ruler{height:47px;display:flex;justify-content:space-between;margin-top:32px;padding-top:20px;border-top:1px solid var(--ink);background:repeating-linear-gradient(90deg,var(--ink) 0,var(--ink) 1px,transparent 1px,transparent 2.5%) left top/100% 9px no-repeat;font-size:10px;color:var(--muted);font-variant-numeric:tabular-nums}.converters{display:grid;grid-template-columns:1fr 1fr;gap:24px}.converter{background:var(--white);border:1px solid var(--line);padding:28px;min-width:0}.section-heading{display:flex;align-items:center;gap:12px;margin-bottom:24px}.number{color:var(--muted)}h2{font-size:22px;font-weight:550;letter-spacing:-.02em;margin:0}.unit-mark{margin-left:auto;font-family:Georgia,serif;font-size:27px}label{display:block;margin-bottom:7px;font-size:13px;font-weight:600}input,select{width:100%;font:inherit;color:var(--ink);background:var(--white);border:1px solid var(--line);border-radius:4px}input{padding:11px 14px;font-size:28px;font-variant-numeric:tabular-nums}select{padding:11px 8px;font-size:13px;min-height:44px}input[aria-invalid=true]{border-color:var(--error)}:focus-visible{outline:3px solid #99b4a4;outline-offset:3px}.field-hint{color:var(--muted);font-size:12px;min-height:36px;margin:8px 0 19px}.unit-pair{display:grid;grid-template-columns:minmax(0,1fr) 18px minmax(0,1fr);gap:9px;align-items:end}.unit-pair>span{text-align:center;padding-bottom:10px;color:var(--muted)}.error{min-height:36px;color:var(--error);font-size:12px;margin:10px 0}.result{border-top:1px solid var(--line);padding-top:18px;display:flex;flex-direction:column;gap:7px}.result>span{font-size:12px;color:var(--muted)}output{font-family:Georgia,"Times New Roman",serif;font-size:clamp(25px,3.5vw,35px);line-height:1.2;overflow-wrap:anywhere;font-variant-numeric:tabular-nums}.footnote{display:flex;gap:15px;max-width:620px;padding:26px 0 45px;color:var(--muted)}.footnote>span{font-size:24px}.footnote p{font-size:13px;line-height:1.6;margin:3px 0}.notice{padding:15px;border:1px solid var(--line)}footer{border-top:1px solid var(--line);padding:21px 0 30px;display:flex;justify-content:space-between;gap:20px;font-size:12px;color:var(--muted)}footer nav{display:flex;gap:22px}.article{max-width:650px;padding:64px 0 80px}.article h1{font-size:clamp(36px,6vw,56px);margin-bottom:32px}.article h2{margin:30px 0 12px;font-size:20px}.article p,.article li{color:var(--muted);line-height:1.75}.article ul{padding-left:20px}.back-link{display:inline-block;margin-top:24px}.error-code{font-size:13px;letter-spacing:.15em;color:var(--muted);margin:0 0 22px}
@media(max-width:740px){.site-header,main,footer{width:calc(100% - 36px)}.site-header{padding:21px 0}.header-note{font-size:10px;letter-spacing:.03em}.intro{padding-top:39px}.converters{grid-template-columns:1fr;gap:18px}.converter{padding:23px}.field-hint{min-height:auto}.error{min-height:18px}footer{flex-direction:column;gap:11px}.article{padding:44px 0 55px}.eyebrow{font-size:10px}.footnote{padding-bottom:30px}}