:root{font-family:system-ui,sans-serif;color:#eaf0f8;background:#101a2a;font-size:18px;color-scheme:dark}body{margin:0;min-height:100vh;display:grid;place-items:center}main{box-sizing:border-box;width:min(100%,720px);padding:64px 32px}.eyebrow{color:#70d5ff;letter-spacing:.12em;font-size:.78rem;font-weight:700}h1{font-size:clamp(2.4rem,7vw,4rem);line-height:1.05;letter-spacing:-.04em;margin:30px 0}p{line-height:1.65;max-width:32rem}button{font:inherit;font-weight:650;border:0;border-radius:8px;background:#70d5ff;color:#101a2a;padding:16px 24px;margin:16px 0;cursor:pointer}button:disabled{opacity:.45;cursor:default}button:focus-visible{outline:3px solid white;outline-offset:5px}.note{font-size:.85rem;color:#acb9cd;margin-top:40px;border-top:1px solid #33415a;padding-top:24px}

#verification label{display:block;margin-bottom:8px}#verification input{box-sizing:border-box;width:100%;font:inherit;padding:12px;border:1px solid #75869c;border-radius:8px;background:#17263b;color:#eaf0f8}#verification .simulation{color:#ffcb7c}#demo-mailbox{padding:16px;border:1px dashed #75869c;border-radius:8px}#verification-error{color:#ffb8a8}