.content{
    padding: 10px;
}
.research-search-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.research-search-form .fields-group,
.research-search-form .buttons-group {
    display: grid;
    gap: 15px;
    padding: 10px;
}

.research-search-form .fields-group {
    grid-template-columns: 1fr;
}

.research-search-form .buttons-group {
    grid-template-columns: 1fr;
    justify-content: start;
    justify-items: start;
    margin-left: 0;
    margin-right: auto;
}

.research-search-form .form-field {
    width: 100%;
}

.research-search-form input,
.research-search-form select,
.research-search-form button {
    width: 100%;
    box-sizing: border-box;
}

.search-results li {
    display: flex;
    align-items: center;
    border-bottom: 1px solid #ddd;
    padding: 15px 0;
}
.search-results li.has-thumbnail {
    justify-content: space-between;
}

.search-results li .thumbnail-wrapper {
    margin-right: 20px;
    flex-shrink: 0;
}

.search-results li .thumbnail-wrapper img {
    max-width: 150px;
    height: auto;
    display: block;
}

.search-results li .text-wrapper {
    flex: 1;
}

/* medium screens: 2 fields per row */
@media (min-width: 768px) {
    .research-search-form .fields-group {
        grid-template-columns: repeat(2, 1fr);
    }

    .research-search-form .buttons-group {
        grid-template-columns: repeat(2, 1fr);
        grid-template-columns: repeat(2, minmax(180px, 220px));
        justify-content: start;
    }
}

/* desktop: 4 fields in one row */
@media (min-width: 1024px) {
    .research-search-form .fields-group {
        grid-template-columns: repeat(4, 1fr);
    }

    .research-search-form .buttons-group {
        grid-template-columns: repeat(2, 1fr);
    }
}