body {
    font-family: sans-serif;
    text-align: center;
    background-color: #f2f2f2;
    margin: 0;
    padding: 0;
}
.gallery {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
}
.image-box {
    margin: 10px;
    border: 1px solid #ccc;
    padding: 10px;
    background: white;
    border-radius: 10px;
    max-width: 200px;
}
.image-box img {
    width: 100%;
    cursor: pointer;
}
.filter-btn {
    margin: 5px;
    padding: 10px 15px;
    background: #3498db;
    color: white;
    border: none;
    cursor: pointer;
    border-radius: 5px;
    text-decoration: none;
}
.modal {
    display: none;
    position: fixed;
    z-index: 999;
    left: 0; top: 0;
    width: 100%; height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    overflow: auto;
    text-align: center;
}
.modal-content {
    margin-top: 5%;
    max-width: 90%;
    max-height: 80vh;
    border-radius: 10px;
}
.close {
    position: absolute;
    top: 30px;
    right: 50px;
    color: white;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
}
#caption {
    color: white;
    font-size: 18px;
    margin: 10px auto;
}