:root{color-scheme:light;font-family:system-ui,-apple-system,sans-serif;color:#28242b;background:#f7f4ef}*{box-sizing:border-box}body{margin:0}header,main,footer{max-width:1080px;margin:auto;padding:32px 6%}header{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #dcd4dc}a{color:inherit;text-underline-offset:5px}.brand{font-family:Georgia,serif;font-size:30px;letter-spacing:3px;text-decoration:none}.eyebrow{font-size:11px;font-weight:650;letter-spacing:2px;color:#7c637f;margin:30px 0 20px}h1{font-family:Georgia,serif;font-weight:400;font-size:clamp(36px,6vw,64px);line-height:1.12;letter-spacing:-1px;max-width:900px;margin:0 0 25px}h2{font-size:24px;line-height:1.3;margin:0 0 12px}.intro{font-size:20px;line-height:1.6;color:#625867;max-width:760px}p{line-height:1.7}.back{font-size:14px;color:#6e6070}.sections{margin:50px 0}.sections section{display:flex;gap:25px;padding:32px 0;border-top:1px solid #dcd4dc}.number{font-family:Georgia,serif;font-size:34px;color:#ac9baf}.sections p{max-width:720px;margin:0;white-space:pre-line}.calculator{background:#ede6ef;padding:35px;border-radius:22px}.calculator label{display:block;margin:22px 0 12px;max-width:400px;font-weight:550}input{display:block;width:100%;font:inherit;border:1px solid #baa9bf;padding:15px;margin-top:9px;border-radius:10px;background:#fff}output{display:block;padding:20px;background:#fff;border-radius:12px;margin:22px 0;line-height:1.6}small{display:block;color:#6a606e;line-height:1.6}.contact{padding:30px 0}.actions{display:flex;flex-wrap:wrap;gap:15px;align-items:center;margin:25px 0}button,.primary{display:inline-block;font:inherit;border:1px solid #7a627e;border-radius:100px;padding:14px 22px;background:transparent;text-decoration:none;cursor:pointer}.primary{background:#4e3c54;color:#fff}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:22px;margin:40px 0}.guide-card{padding:28px;border:1px solid #dcd4dc;border-radius:18px;text-decoration:none}.guide-card span{color:#795d80;font-size:14px}footer{font-size:13px;color:#776b79;border-top:1px solid #dcd4dc;line-height:1.7}:focus-visible{outline:3px solid #8b6597;outline-offset:4px}@media(max-width:600px){header,main,footer{padding:24px 6%}.calculator{padding:24px}.sections section{gap:16px}.brand{font-size:24px}header>a:last-child{font-size:13px}.intro{font-size:18px}.actions{align-items:flex-start;flex-direction:column}}