.fwcfac{max-width:700px;margin:auto;padding:20px;font-family:Arial;color:#222;box-sizing:border-box}.fwcfac input{width:100%;padding:12px;margin:6px 0 15px;border:1px solid #ccc;border-radius:10px;box-sizing:border-box}.buttons{display:flex;flex-wrap:wrap;gap:10px}.buttons button{padding:12px;border:0;border-radius:8px}.result{margin-top:25px;padding:20px;background:#f3f4f6;border-radius:12px}.result #fee{font-size:30px;font-weight:bold}@media(max-width:600px){.buttons button{width:100%}}