.startbild {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    margin-bottom: 30px;
}

.button-container.column-layout {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    margin-top: 20px;
}

.start-button {
    padding: 15px 25px;
    background-color: #333;
    color: #fff;
    text-decoration: none;
    font-size: 18px;
    border-radius: 8px;
    transition: background-color 0.3s ease;
    min-width: 250px;
    text-align: center;
}

.start-button:hover {
    background-color: #555;
}