:root {
    --gutter: 0px;
}
.single-content {
    width: calc(100% - var(--gutter));
    margin-bottom: 25px;
}

@media (min-width: 768px) {
    :root {
        --gutter: 20px;
    }
    .single-content {
        width: calc(50% - var(--gutter) * 0.5);
        margin-bottom: var(--gutter);
    }
}

@media (min-width: 992px) {
    :root {
        --gutter: 25px;
    }
    .single-content {
        width: calc(25% - var(--gutter) * 0.75);
        margin-bottom: var(--gutter);
    }
}

@media (min-width: 1200px) {
    .single-content {
        width: calc(25% - var(--gutter) * 0.75);
    }
}

.filters {
	width: 100%;
	text-align: center;
	margin: 25px 0 30px;
}
.filters ul {
	list-style: none;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
	margin: 0;
	padding: 0;
}
.filters li {
    padding: 7px 27px;
    font-size: 15px;
    color: var(--color-black-dark);
    font-weight: 500;
    cursor: pointer;
    border-radius: 15px;
    overflow: hidden;
    background-color: #f2f2f2;
    border: 2px solid #e9e9e9;
    user-select: none;
    text-transform: uppercase;
    transition: .3s;
}
.filters li.active, .filters li:hover {
    color: #fff;
    border: 2px solid var(--color-primary);
    background-color: var(--color-primary);
}
.grid-content {
    display: flex;
}
.single-content img {
    width: 100%;
    height: auto;
}
@media (max-width: 575.8px){
    .filters ul {
        gap: 12px;
    }
    .filters li {
        padding: 6px 24px;
        font-size: 14px;
    }
}