body {
    font-family: Arial, sans-serif;
    background: #f0f0f0;
    padding: 20px;
}

h1 {
    text-align: center;
}

form {
    background: #fff;
    padding: 20px;
    max-width: 600px;
    margin: auto;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

label {
    font-weight: bold;
}

input, select, textarea {
    width: 100%;
    margin: 8px 0 20px 0;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

button {
    background: #007BFF;
    color: white;
    padding: 10px 15px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

button:hover {
    background: #0056b3;
}

.teilnehmer-feld {
    background: #f9f9f9;
    padding: 10px;
    border-radius: 8px;
    margin-bottom: 10px;
}