body {
    font-family: Arial;
    margin:0;
    display:flex;
    justify-content:center;
    align-items:center;
    height:100vh;
    background: linear-gradient(135deg,#7f5af0cc,#ff49a9cc);
}
.login-container {
    background:#111;
    padding:30px;
    border-radius:10px;
    text-align:center;
}
.logo {
    width:100px;
    margin-bottom:15px;
}
input {
    display:block;
    margin:10px auto;
    padding:10px;
    width:200px;
    border-radius:5px;
    border:none;
}
button {
    padding:10px 20px;
    background:#fff;
    color:#7f5af0;
    font-weight:bold;
    border:none;
    border-radius:5px;
    cursor:pointer;
}
button:hover {
    background:#ddd;
}
.error {
    color:red;
}