.tops-masonry-gallery {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 15px 60px;
}

.gallery-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    justify-content: center;
    margin-bottom: 30px;
}

.gallery-filter-btn {
    background: #1b1b1b;
    color: #fff;
    border: none;
    padding: 12px 20px;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: .5px;
    cursor: pointer;
    transition: background .2s ease;
}

.gallery-filter-btn:hover,
.gallery-filter-btn.active {
    background: #29a5d8;
}

.gallery-grid {
    position: relative;
}

.grid-sizer,
.grid-item {
    width: 33.3%;
}

.grid-item {
    float: left;
    padding: 6px;
    box-sizing: border-box;
}

.grid-item img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.grid-item-width2 {
    width: 66.6%;
}

.grid-item-height2 {
    height: 500px;
}

.grid-item-height2 img {
    height: 100%;
}

.grid-item-width2-height2 {
    width: 66.6%;
    height: 500px;
}

.grid-item:not(.grid-item-height2):not(.grid-item-width2-height2) img {
    height: auto;
}

.gallery-load-more-wrap {
    text-align: center;
    margin-top: 30px;
}

.gallery-load-more {
    background: #29a5d8;
    color: #fff;
    border: none;
    padding: 14px 34px;
    text-transform: uppercase;
    letter-spacing: .5px;
    cursor: pointer;
    font-size: 12px;
}

.gallery-load-more:disabled {
    opacity: .6;
    cursor: default;
}

@media (max-width: 768px) {
    .grid-sizer,
    .grid-item,
    .grid-item-width2,
    .grid-item-width2-height2 {
        width: 50%;
    }
}

@media (max-width: 480px) {
    .grid-sizer,
    .grid-item,
    .grid-item-width2,
    .grid-item-width2-height2 {
        width: 100%;
    }

    .grid-item-height2,
    .grid-item-width2-height2 {
        height: 320px;
    }
}