body {
        font-family: Arial, sans-serif;
        display: flex;
        justify-content: center;
        align-items: center;
        height: 100vh;
        margin: 0;
        background-color: #f5f5f5;
    }

    .container {
        text-align: center;
        max-width: 600px;
    }

    .card {
        background: #ffffff;
        padding: 20px;
        border-radius: 8px;
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
        transition: transform 0.3s ease-out;
    }

    .card:hover {
        transform: translateY(-5px);
    }

    .presentation-image {
        max-width: 100%;
        height: auto;
        margin: 20px 0;
        border-radius: 8px;
    }

    .navigation {
        margin-top: 20px;
    }

    .next-button {
        background-color: #007BFF;
        color: #ffffff;
        padding: 10px 20px;
        text-decoration: none;
        border-radius: 5px;
        transition: background-color 0.3s ease-out;
    }

    .prev-button {
        background-color: #007BFF;
        color: #ffffff;
        padding: 10px 20px;
        text-decoration: none;
        border-radius: 5px;
        transition: background-color 0.3s ease-out;
    }

    .next-button:hover {
        background-color: #0056b3;
    }