:root{color-scheme:light;font:16px/1.6 system-ui,sans-serif;color:#203b38;background:#f2f1ea}*{box-sizing:border-box}body{margin:0}main{max-width:1000px;margin:auto;padding:32px 24px 60px}header{display:flex;justify-content:space-between;gap:20px;font-size:12px}header span{letter-spacing:.15em}a{color:#236657;text-underline-offset:4px}h1{font-size:clamp(30px,4vw,48px);line-height:1.15;letter-spacing:-.035em;max-width:820px;margin:40px 0 18px}#intro{max-width:740px;color:#526864}#fields{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:28px}label{display:flex;flex-direction:column;gap:8px;font-size:14px}input{font:600 25px system-ui;width:100%;padding:13px;border:1px solid #aabcb4;border-radius:8px;background:#fff;color:#203b38}input:focus,button:focus-visible,a:focus-visible{outline:3px solid #267d6e;outline-offset:3px}button{border:1px solid #54796c;border-radius:30px;padding:10px 17px;color:#203b38;background:transparent;font:inherit;cursor:pointer}button:hover{background:#e2e9df}.actions{display:flex;gap:12px;flex-wrap:wrap}#help,.note,#formula{font-size:14px;color:#53645f}#error{color:#a13528}#results{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:25px 0}article{background:#dce8db;padding:20px;border-radius:12px}article strong{font-size:34px;display:block;line-height:1.2;margin-bottom:12px}article span{font-size:14px}article.negative{background:#f4ded4}#download{display:inline-block;margin-top:20px}summary{cursor:pointer;width:max-content;font-size:23px}@media(max-width:620px){#fields{grid-template-columns:repeat(2,1fr)}#results{grid-template-columns:1fr}header{flex-wrap:wrap}h1{margin-top:28px}}@media(max-width:360px){#fields{grid-template-columns:1fr}}