:root{font-family:system-ui,sans-serif;color:#172638;background:#f4f7fb}body{margin:0}main{max-width:680px;margin:40px auto;padding:28px;background:white;border-radius:18px;box-shadow:0 10px 40px #1231}h1{font-size:2.2rem}p{line-height:1.6}section{border-top:1px solid #d9e1ec;margin-top:24px;padding-top:16px}a{color:#15559b}label{display:block;margin:12px 0}input:not([type=checkbox]),select{display:block;box-sizing:border-box;width:100%;padding:12px;font:inherit;border:1px solid #9badc3;border-radius:7px;margin-top:6px}button{padding:12px 20px;border:0;border-radius:8px;background:#164e86;color:white;font:inherit;cursor:pointer}button:disabled{opacity:.5}#nex-number{font-size:2rem}output{display:block;overflow-wrap:anywhere;font-family:monospace;font-size:1.2rem;margin-top:16px}#nex-status{color:#38526b}[hidden]{display:none!important}@media(max-width:720px){main{margin:12px;padding:20px}}