*{box-sizing:border-box}body{margin:0;min-height:100vh;display:grid;place-items:center;background:#f6f5f2;color:#161616;font:16px/1.45 "Source Sans 3",system-ui,sans-serif}
.box{background:#fff;border:1px solid #dedbd3;border-radius:10px;padding:2rem;width:min(92vw,400px)}
.logo{border:1.5px solid #161616;padding:.3rem .8rem;text-align:center;font:1.05rem Georgia,serif;letter-spacing:.12em;line-height:1.1;margin-bottom:1.2rem}
.logo small{display:block;font-size:.5rem;letter-spacing:.35em}
h1{font:400 1.6rem Georgia,serif;margin:0 0 1rem}
label{display:block;margin-bottom:.8rem;font-size:.9rem;color:#6b6860}
input{display:block;width:100%;margin-top:.25rem;padding:.7rem .8rem;font:inherit;font-size:1rem;border:1px solid #dedbd3;border-radius:6px}
button{width:100%;padding:.8rem;font:inherit;font-weight:600;border:0;border-radius:6px;background:#161616;color:#fff;cursor:pointer;min-height:46px}
.err{background:#fbeceb;color:#a3262a;padding:.6rem .8rem;border-radius:6px}.mu{color:#6b6860;font-size:.85rem;margin-top:1rem}