body{
    margin:0;
    font-family:Arial,sans-serif;
    background:#f5f5f5;
    display:flex;
    justify-content:center;
    align-items:center;
    min-height:100vh;
}

.signup-box{
    width:360px;
    background:#fff;
    padding:30px;
    border-radius:15px;
    box-shadow:0 5px 20px rgba(0,0,0,.2);
    text-align:center;
}

.signup-box h1{
    margin-bottom:20px;
}

.signup-box input{
    width:100%;
    padding:12px;
    margin:10px 0;
    border:1px solid #ccc;
    border-radius:8px;
    box-sizing:border-box;
}

.signup-box button{
    width:100%;
    padding:12px;
    margin-top:15px;
    border:none;
    border-radius:8px;
    background:#2563eb;
    color:white;
    font-size:16px;
    cursor:pointer;
}

.signup-box button:hover{
    background:#1d4ed8;
}

.signup-box p{
    margin-top:15px;
}