body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f9;
    color: #333;
}
.youtube-video-organizer {
    max-width: 800px;
    margin: 0 auto;
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}
.youtube-video-organizer h1 {
    text-align: center;
    color: #5a67d8;
}
label, select {
    display: block;
    width: 100%;
    margin-top: 20px;
}
select {
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    background-color: #fff;
    font-size: 16px;
}
.video-container {
    margin-top: 20px;
}
iframe {
    width: 100%;
    max-width: 560px;
    height: 315px;
    margin-bottom: 20px;
    border: none;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}
.hidden {
    display: none;
}