@font-face{font-family:Inter;src:url(/fonts/inter-var-latin.woff2) format("woff2");font-weight:100 900;font-display:swap}
:root{--bg:#f7f4ee;--ink:#1f2a24;--mute:#5b6660;--acc:#2f6b4f;--card:#fff;--line:#e2ddd2}
*{box-sizing:border-box}body{margin:0;font:17px/1.6 Inter,system-ui,sans-serif;background:var(--bg);color:var(--ink)}
a{color:var(--acc)}.top{display:flex;flex-wrap:wrap;gap:.5rem 1rem;align-items:center;padding:.8rem 1.2rem;border-bottom:1px solid var(--line);background:var(--card)}
.brand{font-weight:800;text-decoration:none;color:var(--ink);margin-right:auto}.top nav{display:flex;flex-wrap:wrap;gap:.2rem .9rem;font-size:.92rem}
.units{border:1px solid var(--acc);background:none;color:var(--acc);border-radius:99px;padding:.3rem .8rem;font:inherit;font-size:.85rem;cursor:pointer}
main{max-width:46rem;margin:0 auto;padding:1.5rem 1.2rem 3rem}h1{font-size:2rem;line-height:1.2;margin:.4rem 0}h2{font-size:1.2rem;margin-top:2rem}
.lede{color:var(--mute);font-size:1.08rem}.tool{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:1.2rem;box-shadow:0 6px 24px #1f2a2410}
form{display:grid;grid-template-columns:repeat(auto-fit,minmax(15rem,1fr));gap:.9rem}label{display:flex;flex-direction:column;font-size:.9rem;font-weight:600;gap:.3rem}
.in{display:flex;align-items:center;border:1px solid var(--line);border-radius:8px;background:#fff}.in input{border:0;flex:1;min-width:0;padding:.55rem .6rem;font:inherit;background:none}
.u{padding:0 .6rem;color:var(--mute);font-weight:500}select{padding:.55rem;border:1px solid var(--line);border-radius:8px;font:inherit;background:#fff}
output{display:block;margin-top:1rem;padding-top:1rem;border-top:1px dashed var(--line)}.big{font-size:1.7rem;font-weight:800;margin:.2rem 0}.big small{font-size:.9rem;font-weight:500;color:var(--mute)}
details{border-bottom:1px solid var(--line);padding:.6rem 0}summary{cursor:pointer;font-weight:600}.src{font-size:.88rem;color:var(--mute)}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(18rem,1fr));gap:1rem;margin-top:1.5rem}
.card{display:block;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:1.1rem;text-decoration:none;color:var(--ink)}.card:hover{border-color:var(--acc)}.card h2{margin:0 0 .3rem;font-size:1.1rem}.card p{margin:0;color:var(--mute);font-size:.95rem}
footer{max-width:46rem;margin:0 auto;padding:1rem 1.2rem 3rem;font-size:.85rem;color:var(--mute)}
.tbl{overflow-x:auto;margin:1rem 0;border:1px solid var(--line);border-radius:12px;background:var(--card)}table{border-collapse:collapse;width:100%;font-size:.92rem}th,td{padding:.5rem .7rem;text-align:left;border-bottom:1px solid var(--line)}th{background:#eef2ec;font-weight:700;position:sticky;top:0}tbody tr:nth-child(even){background:#faf8f3}tbody tr:last-child td{border-bottom:0}.rel li{margin:.25rem 0}