*{
    margin:0;
    padding:0;
    box-sizing:border-box;
    font-family:Arial, Helvetica, sans-serif;
}

body{
    display:flex;
    justify-content:center;
    align-items:center;
    height:100vh;
    background:linear-gradient(135deg,#4facfe,#00f2fe);
}

.container{
    width:360px;
    background:white;
    padding:30px;
    border-radius:15px;
    box-shadow:0 10px 25px rgba(0,0,0,.2);
}

h2{
    text-align:center;
    margin-bottom:20px;
    color:#333;
}

input{
    width:100%;
    padding:12px;
    margin:8px 0;
    border:1px solid #ccc;
    border-radius:8px;
    outline:none;
}

button{
    width:100%;
    padding:12px;
    margin-top:15px;
    background:#4facfe;
    color:white;
    border:none;
    border-radius:8px;
    cursor:pointer;
    font-size:16px;
    transition:.3s;
}

button:hover{
    background:#0099ff;
}

.switch{
    margin-top:15px;
    text-align:center;
}

.switch a{
    color:#4facfe;
    cursor:pointer;
    text-decoration:none;
    font-weight:bold;
}

#signupForm{
    display:none;
}

.message{
    text-align:center;
    margin-top:15px;
    color:green;
    font-weight:bold;
}