body {
    max-width: 1200px;
    margin: auto;
    padding: 20px;
    font-family: 'Helvetica Neue', Arial, sans-serif;
    background-color: #f9f9f9;
    color: #333;
}

h1,
h2 {
    text-align: center;
    font-weight: normal;
}

h1 {
    font-size: 2em;
    margin-bottom: 10px;
}

h2.section-title {
    font-size: 1.5em;
    margin: 30px 0 20px;
}

.usb-container {
    text-align: center;
    margin: 20px 0;
}

.usb-container button {
    background-color: #007BFF;
    color: white;
    border: none;
    padding: 10px 20px;
    margin: 0 10px;
    font-size: 1em;
    cursor: pointer;
    border-radius: 5px;
}

.usb-container button:hover:not(:disabled) {
    background-color: #0056b3;
}

.usb-container button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.video-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
}

.video-wrapper {
    width: 45%;
    margin: 10px 0;
    position: relative;
    text-align: center;
}

.video-wrapper video {
    width: 100%;
    border-radius: 8px;
}

.video-label {
    margin-top: 5px;
    font-weight: bold;
    font-size: 1.2em;
}

.separator {
    border: 0;
    height: 1px;
    background: #ccc;
    margin: 40px 0;
}

@media (max-width: 600px) {
    .video-wrapper {
        width: 47.5%;
    }
}

.hidden {
    display: none;
}