*{
    margin:0;
    padding:0;
    box-sizing:border-box;
}

body{

    font-family:Segoe UI, Arial, sans-serif;

    background:linear-gradient(135deg,#f3f7fb,#dfe9f5);

    display:flex;

    justify-content:center;

    align-items:center;

    min-height:100vh;

}

.login-box{

    width:420px;

    background:#fff;

    border-radius:14px;

    padding:35px;

    box-shadow:0 10px 35px rgba(0,0,0,.15);

    text-align:center;

}

.login-logo{

    width:230px;

    margin-bottom:20px;

}

label{

    display:block;

    text-align:left;

    margin:15px 0 6px;

    font-weight:600;

    color:#333;

}

input{

    width:100%;

    padding:12px;

    border:1px solid #ccc;

    border-radius:8px;

    font-size:15px;

    transition:.2s;

}

input:focus{

    outline:none;

    border-color:#1976d2;

    box-shadow:0 0 0 3px rgba(25,118,210,.15);

}

button{

    width:100%;

    margin-top:25px;

    padding:13px;

    background:#1976d2;

    color:white;

    border:none;

    border-radius:8px;

    font-size:16px;

    cursor:pointer;

    transition:.2s;

}

button:hover{

    background:#1565c0;

}

.error{

    background:#ffebee;

    color:#c62828;

    padding:12px;

    border-radius:8px;

    margin-bottom:15px;

}

.footer{

    margin-top:30px;

    border-top:1px solid #eee;

    padding-top:18px;

    font-size:13px;

    color:#666;

    line-height:1.6;

}

.footer strong{

    color:#1976d2;

}

.version{

    font-weight:bold;

    color:#333;

}