body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 20px;
    background-color: #f4f4f4;
    text-align: center;
}

h1 {
    margin-bottom: 20px;
}

#filter-container {
    margin-bottom: 20px;
}

.filter-button {
    padding: 10px 15px;
    margin: 5px;
    border: none;
    border-radius: 5px;
    background-color: #28a745;
    color: white;
    cursor: pointer;
}

.filter-button:hover {
    background-color: #218838;
}

.gallery {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
}

.gallery img {
    width: 200px;
    height: auto;
    margin: 10px;
    border-radius: 10px;
    cursor: pointer;
    transition: transform 0.2s;
}

.gallery img:hover {
    transform: scale(1.05);
}

.lightbox {
    display: none;
    position: fixed;
    z-index: 999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    justify-content: center;
    align-items: center;
}

.lightbox-content {
    max-width: 90%;
    max-height: 80%;
}

.close {
    position: absolute;
    top: 20px;
    right: 30px;
    color: white;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
}