body {
    font-family: Arial, sans-serif;
    background-color: #000; /* Black background */
    margin: 0;
    padding: 0;
    display:block;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    color: #fff; /* White text color */
    height: 100vh;
}
.thumbnails {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    padding: 20px;
}
.thumbnail-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    cursor: pointer;
    transition: transform 0.3s;
    width: 160px;
}
.thumbnail-item img {
    width: 100%;
    height: auto;
    border-radius: 4px;
    object-fit: cover;
}
.thumbnail-item:hover {
    transform: scale(1.05);
}
.thumbnail-title {
    margin-top: 10px;
    font-size: 14px;
    text-align: center;
    color: #fff;
}
/* Popup styles */
.video-popup {
    display: none;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80%;
    max-width: 960px;
    background-color: #111;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
    z-index: 1000;
}
.video-popup iframe {
    width: 100%;
    height: 480px;
    border: none;
    border-radius: 8px;
}
.close-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    background-color: #fff;
    color: #111;
    border: none;
    padding: 10px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 16px;
    font-weight: bold;
}
.overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 999;
}