body {
    font-family: 'Arial', sans-serif;
    padding: 20px;
    margin: 0;
    background-color: #f9f9f9;
    color: #333;
}

h1 {
    text-align: center;
    font-size: 2em;
    margin-bottom: 20px;
    color: #4a4a4a;
}

form {
    margin-bottom: 20px;
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

input[type="text"], textarea, select {
    width: 100%;
    padding: 10px;
    margin: 10px 0;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
}

button {
    padding: 10px 20px;
    background-color: #ff6600; /* Modernes Orange */
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1em;
}

button:hover {
    background-color: #e65c00; /* Dunkleres Orange bei Hover */
}

a {
    text-decoration: none;
    color: #ff6600; /* Modernes Orange */
}

a:hover {
    text-decoration: underline;
}

.card {
    background-color: #fff;
    padding: 20px;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    margin-bottom: 20px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.question {
    font-size: 1.5em;
    font-weight: bold;
    margin-bottom: 20px;
}

.feedback {
    margin-top: 20px;
    padding: 10px;
    border-radius: 4px;
    font-weight: bold;
}

.feedback.correct {
    background-color: #dff0d8;
    color: #3c763d;
}

.feedback.incorrect {
    background-color: #f2dede;
    color: #a94442;
}

.category-selection {
    margin-bottom: 20px;
}

.category-selection h2 {
    font-size: 1.5em;
    margin-bottom: 10px;
}

.category-selection label {
    display: inline-block; /* Nebeneinander auflisten */
    margin: 0 10px 10px 0; /* Abstände zwischen den Labels */
    font-size: 1em;
    cursor: pointer;
}

.category-selection input[type="checkbox"] {
    display: none; /* Verstecke die ursprüngliche Checkbox */
}

.category-selection label span {
    background-color: #f1f1f1;
    padding: 10px 15px; /* Größere Polsterung für ein besseres Klickziel */
    border-radius: 4px;
    display: inline-block;
    transition: background-color 0.3s;
}

.category-selection input[type="checkbox"]:checked + span {
    background-color: #d3d3d3; /* Leichtes Grau bei Auswahl */
    color: #333;
}