:root{font-family:system-ui,sans-serif;color:#223047;background:#f3f5f8}*{box-sizing:border-box}body{margin:0;min-height:100dvh;display:grid;place-items:center;padding:24px}main{width:min(100%,420px);background:white;border:1px solid #e1e6ed;border-radius:24px;padding:36px;box-shadow:0 16px 70px #20334f0a}.mark{background:#527e68;color:#fff;border-radius:12px;font-size:30px;width:48px;height:48px;text-align:center}.eyebrow{font-size:11px;letter-spacing:2px;font-weight:700;margin-top:28px}h1{font-size:28px;letter-spacing:-1px}p{font-size:14px;color:#64748b;line-height:1.6}label{display:block;font-size:13px;font-weight:600;margin-top:22px}input{display:block;width:100%;margin-top:8px;padding:13px;border-radius:10px;border:1px solid #ccd5df;font:inherit}input:focus{outline:2px solid #527e68}button{width:100%;margin-top:26px;border:0;border-radius:10px;background:#355d49;color:white;padding:14px;font:inherit;font-weight:600;cursor:pointer}button:disabled{opacity:.6}#result{min-height:24px;color:#9b3b39}