.pbSearchForm__header {
    margin-bottom: 2.5em;
}

.pbSearchForm__fieldset {
    position: relative;
    margin: 0;
}

.pbSearchForm__input,
.pbSearchForm__button {
    width: 100%;
}

input.pbSearchForm__input {
    margin: 0;
}

.pbSearchForm__button {
    margin: 0.5em 0 0;
}

.pbSearchForm__alternativeSearch {
    margin-top: 0.2em;
    font-size: 0.9em;
}

.pbSearchForm__searchField + .pbSearchForm__searchOptions {
    margin-top: 1em;
}

.pbSearchForm__searchOptionItem {
    display: inline-block;
    margin-right: 0.5em;
}

.pbSearchForm__skipToSearchResultsLink,
.pbSearchForm__fieldsetTitle {
    -webkit-clip-path: inset(100%);
    clip-path: inset(100%);
    clip: rect(1px, 1px, 1px, 1px);
    height: 1px;
    overflow: hidden;
    position: absolute;
    white-space: nowrap;
    width: 1px;
}

.pbSearchForm__skipToSearchResultsLink:focus {
    position: static;
    -webkit-clip-path: none;
    clip-path: none;
    clip: auto;
    overflow: visible;
    height: auto;
    width: auto;
    padding: 0.5em 0.7em;
    white-space: inherit;
    outline: 3px solid #eee;
    outline-offset: 0;
    background-color: #eee;
}

@media (min-width: 450px) {
    .pbSearchForm__searchField {
        display: -webkit-box;
        display: -ms-flexbox;
        display: flex;
    }

    .pbSearchForm__input,
    .pbSearchForm__button {
        width: auto;
    }

    .pbSearchForm__input {
        -webkit-box-flex: 1;
        -ms-flex-positive: 1;
        flex-grow: 1;
    }

    .pbSearchForm__button {
        margin: 0 0 0 0.5em;
    }
}

@media (min-width: 767px) {
    .pbSearchForm {
        display: -webkit-box;
        display: -ms-flexbox;
        display: flex;
        -ms-flex-wrap: wrap;
        flex-wrap: wrap;
    }

    .pbSearchForm__header {
        -ms-flex-preferred-size: 100%;
        flex-basis: 100%;
    }

    .pbSearchForm__sideColumn {
        width: 15em;
        padding-right: 2em;
    }

    .pbSearchForm__mainColumn {
        -ms-flex-preferred-size: 320px;
        flex-basis: 320px;
        -webkit-box-flex: 1;
        -ms-flex-positive: 1;
        flex-grow: 1;
    }
}

@media (min-width: 850px) {
    .pbSearchForm__sideColumn {
        width: 20em;
    }
}