body {
    background: url(bg.png) no-repeat center center fixed;
    background-size: cover;
    font-family: Arial, sans-serif;
    color: #fff;
}
.panel {
    background: rgba(0,0,0,0.7);
    padding: 20px;
    margin: 5% auto;
    width: 95%;
    border-radius: 10px;
}
input, button {
    margin: 5px;
    padding: 5px;
    border-radius: 4px;
}
table {
    width: 100%;
}
th, td {
    padding: 4px;
}
.login {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}