:root{--bg:#f3f5f1;--paper:#fff;--ink:#1d211c;--muted:#697064;--line:#dfe4dc;--brand:#3f8f52;--brand2:#2f7040;--soft:#edf6ee;--shadow:0 12px 35px rgba(35,55,37,.08)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.65 Poppins,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}.wrap{max-width:1120px;width:calc(100% - 36px);margin:auto}a{text-decoration:none;color:inherit}.top{background:#dfe7df;color:#4d564c;text-align:center;padding:8px 14px;font-size:12px;font-weight:600}.header{background:#fff;border-bottom:1px solid var(--line)}.nav{min-height:82px;display:flex;align-items:center;justify-content:space-between;gap:20px}.logo{font-size:23px;font-weight:800;letter-spacing:-.7px}.logo b{color:var(--brand)}.navlinks{display:flex;gap:24px;font-size:14px;font-weight:600;color:#596256}.navlinks a:hover{color:var(--brand)}.hero{background:linear-gradient(180deg,#fff 0,#f7faf6 100%);padding:55px 0 40px;text-align:center}.hero h1{font-size:clamp(38px,6vw,62px);line-height:1.05;letter-spacing:-2.5px;margin:12px 0 10px}.hero p{max-width:730px;margin:auto;color:var(--muted);font-size:17px}.pill{display:inline-block;background:var(--soft);border:1px solid #d4e6d7;color:var(--brand2);padding:6px 12px;border-radius:30px;font-size:12px;font-weight:800}.calc{background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);margin:30px auto 0;text-align:left;overflow:hidden}.calc-head{padding:16px 18px;background:#f7f9f6;border-bottom:1px solid var(--line);font-weight:800;color:#566052}.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;padding:22px}.calc-card{border:1px solid var(--line);border-radius:14px;padding:18px;background:#fff;cursor:pointer;transition:.18s}.calc-card:hover,.calc-card.active{border-color:#a8c9ad;box-shadow:0 7px 22px rgba(46,112,64,.08)}.calc-card.active{background:#f7fbf7}.calc-card h3{font-size:16px;margin:0 0 5px}.calc-card p{margin:0;color:var(--muted);font-size:13px}.work{padding:0 22px 24px}.work h2{font-size:22px;margin:0 0 5px}.work .help{margin:0 0 18px;color:var(--muted);font-size:14px}.fields{display:grid;grid-template-columns:1fr auto 1fr;align-items:end;gap:12px}.field label{display:block;font-size:12px;font-weight:800;color:#586154;margin-bottom:6px}.field input{width:100%;padding:14px;border:1px solid #cfd7cc;border-radius:10px;font-size:20px;font-weight:700;outline:none}.field input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(63,143,82,.12)}.op{font-weight:800;color:#8a9285;padding-bottom:15px}.result{margin-top:18px;padding:17px;background:#f0f7f1;border:1px solid #d7e9d9;border-radius:12px}.result small{display:block;text-transform:uppercase;letter-spacing:.7px;font-weight:800;color:#647264;font-size:10px}.answer{font-size:40px;line-height:1.1;font-weight:900;color:#286638;overflow-wrap:anywhere}.formula{font-size:13px;color:#667064}.actions{margin-top:11px;display:flex;gap:8px}.btn{border:1px solid #ccd6cb;background:#fff;border-radius:9px;padding:8px 12px;font-size:13px;font-weight:800;cursor:pointer}.btn:hover{color:var(--brand2);border-color:#9fc2a4}.quick{display:flex;flex-wrap:wrap;gap:7px;margin-top:16px}.chip{border:1px solid var(--line);background:#fff;border-radius:20px;padding:6px 10px;font-size:12px;cursor:pointer;color:#5e675d}.chip:hover{border-color:#a8c9ad;color:var(--brand2)}section{padding:48px 0}.section-title{text-align:center;margin-bottom:25px}.section-title h2{font-size:31px;line-height:1.15;letter-spacing:-1px;margin:0 0 7px}.section-title p{margin:0;color:var(--muted)}.textgrid{display:grid;grid-template-columns:1.2fr .8fr;gap:20px}.panel{background:#fff;border:1px solid var(--line);border-radius:17px;padding:25px}.panel h3{margin:0 0 10px;font-size:20px}.panel p{color:#626b5f}.formula{background:#f5f8f3;border:1px solid #e1e8df;padding:13px;border-radius:10px;font-weight:700;color:#426047}.examples{display:grid;grid-template-columns:1fr 1fr;gap:9px}.example{border:1px solid var(--line);border-radius:10px;padding:10px}.example b{display:block}.example span{color:var(--muted);font-size:12px}.faq details{background:#fff;border:1px solid var(--line);border-radius:10px;margin:9px 0;padding:14px 16px}.faq summary{font-weight:700;cursor:pointer}.faq p{color:var(--muted);margin:8px 0 0}.tools{background:#e9eee8;border-top:1px solid #dce3da;border-bottom:1px solid #dce3da}.toolgrid{display:grid;grid-template-columns:repeat(5,1fr);gap:11px}.tool{background:#fff;border:1px solid var(--line);border-radius:13px;padding:14px;transition:.18s}.tool:hover{transform:translateY(-2px);border-color:#aac7ad}.toolicon{width:32px;height:32px;border-radius:9px;background:var(--soft);color:var(--brand2);display:grid;place-items:center;font-weight:900;margin-bottom:8px}.tool b{font-size:13px}.tool small{display:block;color:var(--muted);font-size:11px;line-height:1.4;margin-top:2px}.share{background:#fff;border:1px solid var(--line);border-radius:17px;padding:22px;text-align:center}.share p{color:var(--muted);margin:3px 0 14px}.share-buttons{display:flex;flex-wrap:wrap;justify-content:center;gap:8px}.share-btn{border:0;border-radius:9px;padding:9px 13px;color:#fff;font-weight:700;cursor:pointer;font-size:13px}.x{background:#111}.fb{background:#1877f2}.wa{background:#25d366}.tg{background:#229ed9}.li{background:#0a66c2}.rd{background:#ff4500}.pin{background:#bd081c}.mail{background:#68736a}.contact{max-width:760px;margin:auto}.contact-form{display:grid;gap:12px}.contact-form label{font-size:13px;font-weight:700}.contact-form input,.contact-form textarea{width:100%;padding:12px;border:1px solid #cfd7cc;border-radius:9px;outline:none}.contact-form textarea{min-height:150px;resize:vertical}.submit{background:var(--brand);color:#fff;border:0;border-radius:9px;padding:12px 18px;font-weight:800;cursor:pointer}.submit:hover{background:var(--brand2)}.footer{background:#30372f;color:#dfe5dc;padding:27px 0}.foot{display:flex;justify-content:space-between;gap:20px}.footlinks{display:flex;gap:15px;flex-wrap:wrap}.foot a:hover{color:#fff}.legal{padding:55px 0 70px;max-width:820px}.legal h1{font-size:43px;letter-spacing:-1.5px}.legal h2{font-size:22px;margin-top:30px}.legal p,.legal li{color:#60695e}.back{color:var(--brand2);font-weight:800}.success{padding:13px;background:#eef8ef;border:1px solid #cfe6d1;border-radius:10px;color:#286638;margin-bottom:15px}
@media(max-width:900px){.cards{grid-template-columns:repeat(2,1fr)}.toolgrid{grid-template-columns:repeat(2,1fr)}.textgrid{grid-template-columns:1fr}}
@media(max-width:620px){.wrap{width:calc(100% - 26px)}.nav{min-height:68px}.navlinks{display:none}.hero{padding:40px 0 25px}.fields{grid-template-columns:1fr}.op{text-align:center;padding:0}.cards{grid-template-columns:1fr}.toolgrid,.examples{grid-template-columns:1fr 1fr}.foot{display:block}.footlinks{margin-top:10px}.hero h1{letter-spacing:-1.8px}.legal h1{font-size:36px}}
@media(max-width:390px){.toolgrid,.examples{grid-template-columns:1fr}}