@media screen and (max-width: 1600px) {
    .file-container {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media screen and (max-width: 1000px) {

    .big-search-block .form-item label {
        margin-top: 0;
    }

    .file-container {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media screen and (max-width: 767px) {
    .file-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media screen and (max-width: 500px) {
    .file-container {
        grid-template-columns: repeat(1, 1fr);
    }
}