:root{font-family:system-ui,sans-serif;color:#172033;background:#f4f7fb}body{margin:0}main{max-width:680px;margin:5vh auto;padding:2rem;background:white;border-radius:16px;box-shadow:0 8px 30px #17203318}h1{margin-top:0}label{display:block;font-weight:700;margin:1.2rem 0 .35rem}input{box-sizing:border-box;width:100%;padding:.8rem;border:1px solid #aab5c5;border-radius:8px;font-size:1rem}small{display:block;margin-top:.4rem;color:#536174}button,#download{display:inline-block;margin-top:1.4rem;padding:.8rem 1rem;border:0;border-radius:8px;background:#175cd3;color:#fff;font-weight:700;text-decoration:none;cursor:pointer}button:disabled{opacity:.5;cursor:not-allowed}#status{min-height:1.5em;margin-top:1rem}section{margin-top:2rem;border-top:1px solid #e2e7ef;padding-top:1rem}code{background:#eef2f8;padding:.15rem .3rem;border-radius:4px}