body {
    font-family: 'Courier New', monospace;
    background: #000;
    color: #0f0;
    margin: 0;
    padding: 20px;
}

.container {
    max-width: 600px;
    margin: 0 auto;
    border: 2px solid #0f0;
    padding: 20px;
    background: #111;
}

header h1 {
    text-align: center;
    font-size: 2.5em;
    margin-bottom: 10px;
}

.frage {
    margin: 15px 0;
}

.frage label {
    display: block;
    margin-bottom: 5px;
}

.frage input, .frage select {
    width: 100%;
    padding: 10px;
    background: #222;
    color: #0f0;
    border: 1px solid #0f0;
}

button {
    background: #0f0;
    color: #000;
    border: none;
    padding: 15px 30px;
    font-size: 1.2em;
    cursor: pointer;
    margin: 10px 5px;
    font-weight: bold;
}

button:hover {
    background: #0a0;
}

#ergebnis {
    text-align: center;
}

.werbung {
    background: #333;
    padding: 20px;
    margin: 20px 0;
    border: 1px dashed #0f0;
}