body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}
/* Stylizacja dla popupu */
        .popup {
            display: none;
            position: fixed;
            z-index: 1000;
            left: 0;
            top: 0;
            width: 100%;
            height: 100%;
            overflow: auto;
            background-color: rgba(0,0,0,0.5);
        }
.software-title {
    font-size: 1.5em;
}

        .popup-content {
            background-color: #fff;
            margin: 15% auto;
            padding: 20px;
            border: 1px solid #888;
            width: 80%;
            box-shadow: 0px 0px 10px rgba(0,0,0,0.5);
        }

        .close-button {
            color: #aaa;
            float: right;
            font-size: 28px;
            font-weight: bold;
        }

        .close-button:hover,
        .close-button:focus {
            color: black;
            text-decoration: none;
            cursor: pointer;
        }

        #news-content p {
            margin: 10px 0;
            line-height: 1.5;
        }

        /* Stylizacja przycisku */
        .button-container {
            text-align: center;
            margin-bottom: 10px;
        }

        #news-button {
            background-color: #2196F3; / kolor/
            color: white;
            padding: 10px 20px;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            font-size: 16px;
            transition: background-color 0.3s ease;
        }

        #news-button:hover {
            background-color: #45a049;
        }

        /* Animacja dla popupu */
        .popup-content {
            animation: fadeIn 0.5s;
        }

        @keyframes fadeIn {
            from {opacity: 0;}
            to {opacity: 1;}
        }
header {
    background-color: #003366;
    color: #fff;
    padding: 1em;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

header img {
    height: 50px;
    max-width: 100%;
}

nav ul {
    list-style: none;
    display: flex;
    margin: 0;
    padding: 0;
}

nav ul li {
    margin-left: 1em;
}

nav ul li a {
    color: #fff;
    text-decoration: none;
}

main {
    flex: 1;
    padding: 2em;
}

h1, h2 {
    color: #003366;
}

#video-columns {
    display: flex;
    justify-content: space-between;
}

.video-column {
    flex: 1;
    margin: 0 1em;
}

.video-column h3 {
    text-align: center;
}

.video-column div {
    margin-bottom: 1em;
    text-align: center;
}

#manual-list ul {
    list-style: none;
    padding: 0;
}

footer {
    background-color: #003366;
    color: #fff;
    text-align: center;
    padding: 1em;
    margin-top: auto;
}

#search-input {
    width: 100%;
    padding: 10px;
    margin-bottom: 20px;
    border: 1px solid #ccc;
    border-radius: 4px;
}
#chat-container {
    width: 300px;
    margin: 0 auto;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 10px;
    font-family: Arial, sans-serif;
}

#messages {
    height: 300px;
    overflow-y: auto;
    border: 1px solid #ddd;
    padding: 10px;
    margin-bottom: 10px;
}

.user-message {
    text-align: right;
    color: blue;
}

.bot-message {
    text-align: left;
    color: green;
}