body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #E6E6FA;
}

header {
    background: #4B0082;
    color: #fff;
    padding: 20px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

nav {
    margin: 20px 0;
}
@media (max-width: 768px) {
    nav {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 10px;
    }

    .filter {
        flex-basis: calc(50% - 20px);
        margin: 10px 0;
        padding: 15px;
        font-size: 16px;
    }
}

@media (max-width: 576px) {
    nav {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 10px;
    }

    .filter {
        flex-basis: calc(50% - 20px);
        padding: 15px;
        font-size: 16px;
        margin: 10px 0;
    }
}


.filter:hover {
    background: #836FFF;
    transform: scale(1.05);
    
}

main {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    padding: 20px;
}

.video-item {
    background: #fff;
    border-radius: 10px;
    margin: 15px;
    overflow: hidden;
    width: 300px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
}

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

video {
    width: 100%;
    display: block;
}

h3 {
    text-align: center;
    padding: 10px 0;
    color: #333;
}

.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    justify-content: center;
    align-items: center;
    transition: opacity 0.3s;
}

.lightbox video {
    width: 80%;
    max-width: 800px;
    border-radius: 10px;
}

footer {
    text-align: center;
    padding: 20px;
    background: #4B0082;
    color: #fff;
}