@media (max-width:1024px){.box{width:50%!important}}body{font-family:Arial,Helvetica,sans-serif;display:flex;align-items:center;justify-content:center;height:100vh;margin:0;background:#f5f5f5}.box{background:#fff;padding:30px;border-radius:8px;box-shadow:0 6px 20px rgba(0,0,0,.08);width:320px;text-align:center}input[type=password]{width:100%;padding:10px;margin-top:10px;margin-bottom:12px;border:1px solid #ddd;border-radius:4px}input[type=submit]{padding:10px 18px;border:0;border-radius:6px;cursor:pointer}.error{color:#b00020;margin-bottom:8px}