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

body{
    background:#f2f2f2;
    padding:20px;
}

#login,
#app{
    max-width:500px;
    margin:auto;
    background:white;
    padding:20px;
    border-radius:10px;
    box-shadow:0 0 10px rgba(0,0,0,.15);
}

h2,h3{
    text-align:center;
    margin-bottom:20px;
}

label{
    display:block;
    margin-top:12px;
    margin-bottom:5px;
    font-weight:bold;
}

input{
    width:100%;
    padding:10px;
    border:1px solid #ccc;
    border-radius:6px;
    margin-bottom:10px;
    font-size:16px;
}

button{
    width:100%;
    padding:12px;
    border:none;
    border-radius:6px;
    background:#007bff;
    color:white;
    font-size:16px;
    cursor:pointer;
    margin-top:10px;
}

button:hover{
    background:#0056b3;
}

table{
    width:100%;
    border-collapse:collapse;
    margin-top:20px;
}

th{
    background:#007bff;
    color:white;
    padding:10px;
}

td{
    border:1px solid #ddd;
    padding:8px;
    text-align:center;
}

.actie{
    width:auto;
    padding:6px 10px;
    margin:2px;
}

.verwijder{
    background:#dc3545;
}

.bewerk{
    background:#28a745;
}

#totaal{
    font-size:22px;
    font-weight:bold;
    text-align:center;
    color:green;
    margin-top:15px;
}