*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:#f6f8fc;color:#182230}
a{color:inherit}.container{width:92%;max-width:1120px;margin:auto}.site-header{background:#fff;border-bottom:1px solid #e6eaf0;position:sticky;top:0;z-index:10}
.nav{min-height:70px;display:flex;align-items:center;justify-content:space-between;gap:20px}.logo{font-size:24px;font-weight:900;text-decoration:none;color:#2563eb}
.navlinks{display:flex;gap:20px;align-items:center}.navlinks a{text-decoration:none;font-weight:700;font-size:14px;color:#475467}
.hero{padding:75px 0 55px;background:linear-gradient(135deg,#eef4ff,#fff)}.hero h1{font-size:50px;letter-spacing:-1.5px;margin:0 0 15px}.hero p{font-size:18px;color:#667085;max-width:700px;line-height:1.7}
.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;padding:40px 0 70px}.tool-card{background:#fff;border:1px solid #e5e9f0;border-radius:16px;padding:25px;text-decoration:none;box-shadow:0 8px 25px rgba(20,35,60,.05)}
.tool-card:hover{transform:translateY(-2px)}.tool-card h2{margin:0 0 8px}.tool-card p{margin:0;color:#667085;line-height:1.6}.badge{display:inline-block;background:#eaf1ff;color:#2563eb;padding:6px 10px;border-radius:20px;font-size:12px;font-weight:800;margin-bottom:15px}
.calc-wrap{max-width:900px;margin:45px auto;background:#fff;border:1px solid #e5e9f0;border-radius:16px;padding:28px;box-shadow:0 8px 28px rgba(20,35,60,.06)}
.calc-wrap h1{margin-top:0}.lead{color:#667085;line-height:1.65}.form-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.field label{display:block;font-size:13px;font-weight:800;margin-bottom:7px;color:#475467}
input,select{width:100%;padding:12px;border:1px solid #d0d5dd;border-radius:8px;font-size:16px;background:#fff}.btn{border:0;background:#2563eb;color:#fff;padding:13px 20px;border-radius:8px;font-weight:800;font-size:15px;cursor:pointer}
.btn.secondary{background:#e9eef7;color:#344054}.result{margin-top:20px;background:#eff6ff;border-radius:12px;padding:20px}.result strong{font-size:24px;color:#1d4ed8}
.content{max-width:900px;margin:0 auto 60px;background:#fff;border-radius:16px;padding:28px;border:1px solid #e5e9f0}.content p{color:#667085;line-height:1.75}
table{width:100%;border-collapse:collapse;min-width:760px}th,td{padding:10px;border-bottom:1px solid #e5e7eb;text-align:center}th{background:#f8fafc}.table-scroll{overflow:auto}
.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.summary{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:20px}.summary div{background:#f8fafc;padding:16px;border-radius:10px;text-align:center}.summary span{display:block;color:#667085;font-size:13px;margin-bottom:7px}.summary strong{font-size:21px}
footer{background:#111827;color:#cbd5e1;text-align:center;padding:28px;margin-top:40px}
@media(max-width:750px){.navlinks{display:none}.hero h1{font-size:38px}.grid,.form-grid,.summary{grid-template-columns:1fr}.calc-wrap,.content{width:94%;padding:20px}}