:root{--navy:#041e49;--blue:#087fe8;--cyan:#19caff;--ink:#082753;--muted:#65758d;--ice:#f4faff;--line:#dceaf5}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:"Rubik",Arial,sans-serif;color:var(--ink);background:linear-gradient(180deg,#fafdff,#eef8fe);direction:rtl}
a{text-decoration:none;color:inherit}.wrap{width:min(1050px,calc(100% - 28px));margin:auto}
header{background:rgba(255,255,255,.94);backdrop-filter:blur(18px);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
nav{height:76px;display:flex;align-items:center;gap:16px}.logo img{width:210px;display:block}.back{margin-right:auto;color:#087fd5;font-weight:800;font-size:13px}
.hero{padding:72px 0 38px;text-align:center}.hero .tag{color:#087fd5;font-weight:800;font-size:12px}.hero h1{font-size:clamp(40px,6vw,68px);margin:10px 0;line-height:1}.hero h1 span{color:#087fd5}.hero p{max-width:720px;margin:auto;color:var(--muted);line-height:1.7}
.tool{background:white;border:1px solid var(--line);border-radius:28px;padding:28px;box-shadow:0 25px 70px rgba(4,50,98,.11);margin-bottom:50px}
.grid{display:grid;grid-template-columns:1.2fr .8fr;gap:22px}.fields{display:grid;gap:16px}.field{background:#f8fcff;border:1px solid #e0edf6;border-radius:16px;padding:16px}.field label{display:flex;justify-content:space-between;gap:15px;font-size:13px;font-weight:700;margin-bottom:8px}.field input[type=number],.field select{width:100%;height:48px;border:1px solid #d6e5ef;border-radius:10px;padding:0 12px;background:#fff;font-family:inherit}.field input[type=range]{width:100%;accent-color:#087fe8}
.result{background:linear-gradient(145deg,#041f49,#0871bf);color:white;border-radius:22px;padding:24px;display:flex;flex-direction:column;justify-content:center}.result small{color:#9ee7ff}.result strong{font-size:38px;margin:8px 0}.result hr{border:0;border-top:1px solid rgba(255,255,255,.15);width:100%;margin:16px 0}.result b{font-size:20px}.result p{font-size:11px;color:#c5d9e8;line-height:1.55}
.content{background:white;border-top:1px solid var(--line);padding:55px 0}.content h2{font-size:30px}.content p,.content li{color:var(--muted);line-height:1.8}.cta{display:inline-flex;margin-top:15px;background:linear-gradient(135deg,#0787e8,#18c8ff);color:#fff;padding:14px 20px;border-radius:12px;font-weight:800}
footer{padding:24px 0;background:#031a3a;color:#a9bdcf;font-size:11px;text-align:center}
@media(max-width:760px){.grid{grid-template-columns:1fr}.logo img{width:170px}.tool{padding:18px}.hero{padding-top:45px}.result strong{font-size:32px}}