.gg-container {
    --main-color: #404040;
    --secondary-color: #404040;
    --txt-color: #ffdb70;
    --img-bg-color: #ffdb705b;
    --backdrop-color: hsla(45, 100%, 72%, 0.452);
    --gap-length: 10px;
    --row-height: 200px;
    --column-width: 220px
}

.gg-container *[data-theme="dark"] {
    --main-color: #ffdb70;
    --secondary-color: #ffdb70;
    --txt-color: #111;
    --img-bg-color: rgba(20, 20, 20, 0.9);
    --backdrop-color: rgba(30, 30, 30, 0.9)
}

.gg-box {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(var(--column-width), 1fr));
    grid-auto-rows: var(--row-height);
    grid-gap: var(--gap-length);
    margin: 20px 0
}    

.gg-box img {
    object-fit: cover;
    cursor: pointer;
    width: 100%;
    height: 100%;
    border-radius: 16px;
    transition: transform .3s ease;
    overflow: hidden;
    filter: grayscale(0%);
    transition: all 0.5s ease;
    opacity: 1;
    background: var(--img-bg-color)
}


.gg-box img:hover {
    filter: grayscale(100%);
   transition: all 0.5s ease;
   opacity: 0.3;


}

#gg-screen {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background: var(--backdrop-color);
    
    z-index: 9999;
    text-align: center
}

#gg-screen .gg-image {
    height: 100%;  
    display: inline-flex;
    justify-content: center;
    padding: 15px;
    align-items: center
}

#gg-screen .gg-image img {
    max-width: 100%;
    border-radius: 16px;
    max-height: 100%;
    margin: 0 auto
}

.gg-btn {
    border-radius: 10px;
    width: 35px;
    height: 35px;
    background: var(--main-color);
    color: var(--txt-color);
    text-align: center;
    line-height: 35px;
    cursor: pointer;
    -moz-transition: all .4s ease;
    -o-transition: all .4s ease;
    -webkit-transition: all .4s ease;
    transition: all .4s ease;
    font-size: 20px;
    box-sizing: border-box;
    padding-left: 2px;
    position: fixed;
    bottom: 10px
}

.gg-btn:hover {
    background: var(--secondary-color)
}

.gg-close {
    top: 10px
}

.gg-close,
.gg-next {
    right: 10px
}

.gg-prev {
    right: 50px
}

.gg-prev,
.gg-next {
    bottom: 10px
}

@media(min-width:478px) {
    .gg-box img:nth-child(2n):not(:last-of-type) {
        grid-row-end: span 2
    }

    [data-layout="horizontal"] img:nth-child(2n):not(:last-of-type) {
        grid-column-end: span 2;
        grid-row-end: span 1
    }

    [data-layout="square"] img:nth-child(2n):not(:last-of-type) {
        grid-row-end: span 1;
        grid-column-end: span 1
    }
}

@media(max-width:768px) {
    .gg-box {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        grid-auto-rows: calc(var(--row-height) - 15vh);
        margin: 10px 0
    }
}

@media(max-width:450px) {
    .gg-box {
        grid-template-columns: repeat(auto-fit, minmax(130px, 1fr))
    }
}