*{box-sizing:border-box}
:root{--bg:#f6f7f9;--card:#fff;--text:#111318;--muted:#6b7280;--accent:#16856b;--line:#e5e7eb}
body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}
button,input{font:inherit}
.site-header{max-width:1040px;margin:auto;padding:28px 24px}
.logo{color:var(--text);text-decoration:none;font-weight:800;letter-spacing:-.04em;font-size:20px}
main{max-width:1040px;margin:auto;padding:20px 24px 80px}
.hero{text-align:center;padding:58px 0 35px}
.eyebrow,.section-kicker{font-size:12px;font-weight:800;letter-spacing:.16em;color:var(--accent);margin:0 0 14px}
h1{font-size:clamp(58px,10vw,112px);line-height:.9;letter-spacing:-.075em;margin:0;font-weight:800}
h1 strong{color:var(--accent)}
.lead{color:var(--muted);font-size:18px;margin:24px 0 0}
.calculator{max-width:690px;margin:42px auto 0;background:var(--card);border:1px solid var(--line);border-radius:26px;padding:28px;box-shadow:0 12px 40px rgba(17,19,24,.05);text-align:left}
.mode-switch{display:grid;grid-template-columns:1fr 1fr;background:var(--bg);padding:4px;border-radius:12px;margin-bottom:25px}
.mode{border:0;background:transparent;padding:12px;border-radius:9px;font-weight:800;color:var(--muted);cursor:pointer}
.mode.active{background:var(--card);color:var(--text);box-shadow:0 2px 10px rgba(0,0,0,.06)}
.input-wrap label,.custom-wrap label{display:block;font-size:13px;font-weight:700;margin-bottom:8px}
.money-input,.percent-input{display:flex;align-items:center;border:1px solid var(--line);border-radius:14px;background:#fafafa;overflow:hidden}
.money-input:focus-within,.percent-input:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(22,133,107,.1)}
.money-input input{width:100%;border:0;outline:0;background:transparent;padding:16px;font-size:24px;font-weight:800;color:var(--text)}
.money-input span{padding:0 17px;color:var(--muted);font-weight:700}
.rates{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:14px}
.rate,.example-grid button{border:1px solid var(--line);background:var(--card);padding:12px;border-radius:11px;font-weight:800;cursor:pointer;color:var(--text)}
.rate.active{background:var(--text);border-color:var(--text);color:#fff}
.custom-wrap{margin-top:14px}
.percent-input input{width:100%;border:0;outline:0;background:transparent;padding:13px;font-weight:700}
.percent-input span{padding:0 15px;color:var(--muted)}
.result-main{text-align:center;padding:35px 15px 28px}
.result-main span{display:block;color:var(--muted);font-size:13px;margin-bottom:7px}
.result-main strong{display:block;color:var(--accent);font-size:clamp(38px,7vw,65px);letter-spacing:-.055em}
.result-grid{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line);border-radius:15px;overflow:hidden}
.result-grid div{padding:15px 10px;text-align:center}
.result-grid div+div{border-left:1px solid var(--line)}
.result-grid span{display:block;font-size:11px;color:var(--muted);margin-bottom:5px}
.result-grid strong{font-size:14px}
.examples{text-align:center;margin-top:55px}
.examples h2,.info-card h2,.info h2{font-size:clamp(27px,4vw,40px);letter-spacing:-.045em;margin:0 0 22px}
.example-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:9px}
.example-grid button:hover{border-color:var(--accent)}
.info-card{display:grid;grid-template-columns:1fr 1fr;gap:45px;background:var(--card);border:1px solid var(--line);border-radius:26px;padding:42px;margin-top:55px}
.info-copy p{margin:0 0 14px;color:var(--muted);line-height:1.65}
.info-copy strong{color:var(--text)}
.info{max-width:720px;margin:70px auto 0;text-align:center}
.info p{color:var(--muted);line-height:1.75}
footer{max-width:1040px;margin:auto;padding:28px 24px 38px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:20px;color:var(--muted);font-size:13px}
@media(max-width:700px){
 .site-header{padding:22px 18px}
 main{padding:5px 18px 60px}
 .hero{padding:45px 0 25px}
 h1{font-size:clamp(55px,19vw,86px)}
 .calculator{padding:20px 16px;border-radius:20px;margin-top:32px}
 .rates{grid-template-columns:repeat(2,1fr)}
 .result-main strong{font-size:clamp(37px,12vw,54px)}
 .result-grid strong{font-size:12px}
 .example-grid{grid-template-columns:repeat(2,1fr)}
 .example-grid button:last-child{grid-column:1/-1}
 .info-card{grid-template-columns:1fr;gap:12px;padding:27px 22px;border-radius:20px}
 footer{padding:24px 18px 32px;flex-direction:column}
}