.fcs-calculator{max-width:1000px;margin:20px auto;padding:24px;background:#fff;border:1px solid #ddd;border-radius:10px;box-shadow:0 2px 12px rgba(0,0,0,.06);font-family:Arial,Helvetica,sans-serif;box-sizing:border-box}.fcs-calculator h2{margin:0 0 6px;font-size:24px;line-height:1.25}.fcs-help{margin:0 0 20px;color:#666}.fcs-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.fcs-field{display:flex;flex-direction:column;gap:7px;font-weight:600;font-size:14px}.fcs-field input,.fcs-field select{width:100%;box-sizing:border-box;padding:11px 12px;border:1px solid #bbb;border-radius:5px;background:#fff;font:inherit}.fcs-result{margin-top:20px;padding:16px;background:#f7f7f7;border-left:4px solid #222;line-height:1.9}.fcs-warning{display:block}.fcs-disclaimer{margin:20px 0 0;color:#777;font-size:12px}.fcs-hidden{display:none!important}@media(max-width:650px){.fcs-calculator{padding:16px}.fcs-grid{grid-template-columns:1fr}}