body{
    font-family: Arial, sans-serif;
    background: linear-gradient(135deg,#0f2027,#203a43,#2c5364);
    height:100vh;
    margin:0;
    display:flex;
    justify-content:center;
    align-items:center;
}

.login-box, .panel{
    background:#fff;
    padding:30px;
    border-radius:10px;
    width:350px;
    box-shadow:0 0 15px rgba(0,0,0,0.3);
    text-align:center;
}

h2{
    margin-bottom:15px;
}

input, select{
    width:100%;
    padding:10px;
    margin:10px 0;
    border-radius:5px;
    border:1px solid #ccc;
}

button{
    width:100%;
    padding:10px;
    background:#007bff;
    color:#fff;
    border:none;
    border-radius:5px;
    cursor:pointer;
}

button:hover{
    background:#0056b3;
}

.error{
    background:#ffdddd;
    color:#a00;
    padding:8px;
    border-radius:5px;
}

.success{
    background:#ddffdd;
    color:#060;
    padding:10px;
    margin-bottom:10px;
    border-radius:5px;
}

.top{
    margin-bottom:15px;
}

.logout{
    display:inline-block;
    margin-top:10px;
    padding:5px 10px;
    background:red;
    color:#fff;
    text-decoration:none;
    border-radius:5px;
}
body{
    font-family: Arial;
    background:#f2f2f2;
}
.box{
    width:350px;
    margin:100px auto;
    padding:20px;
    background:#fff;
    border-radius:10px;
    box-shadow:0 0 10px #aaa;
    text-align:center;
}
input,select{
    width:100%;
    padding:10px;
    margin:8px 0;
}
button{
    padding:10px;
    width:100%;
    background:#007bff;
    color:#fff;
    border:none;
    cursor:pointer;
}