:root {
    --fsb-border: 1px solid #ccc;
    --fsb-radius: 5px;
    --fsb-color: inherit;
    --fsb-background: #fff;
    --fsb-font-size: 1rem;
    --fsb-shadow: 0 1px 1px rgba(0, 0, 0, 0.1);
    --fsb-padding: 8px;
    --fsb-padding-right: var(--fsb-padding);
    --fsb-arrow-size: 6px;
    --fsb-arrow-padding: var(--fsb-padding);
    --fsb-arrow-color: currentColor;
    --fsb-icon-color: currentColor;
    --fsb-list-height: 300px;
    --fsb-list-border: var(--fsb-border);
    --fsb-list-radius: 3px;
    --fsb-list-color: var(--fsb-color);
    --fsb-list-background: var(--fsb-background);
    --fsb-hover-color: var(--fsb-color);
    --fsb-hover-background: #ddd;
}

.fsb-original-select {
    display: inline-block;
    margin: 0;
    padding: 8px 22px 8px 8px;
    padding: var(--fsb-padding);
    padding-right: calc(var(--fsb-arrow-padding) * 2 + var(--fsb-arrow-size));
    font-family: inherit;
    line-height: inherit;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

select::-ms-expand {
    display: none;
}

.fsb-original-select[disabled] {
    color: rgba(0, 0, 0, 0.3);
    cursor: not-allowed;
}

.fsb-select {
    display: inline-block;
    position: relative;
}

select[disabled] + .fsb-select {
    cursor: not-allowed;
}

.fsb-select,
.fsb-original-select {
    min-width: 0;
    border: 1px solid #ccc;
    border: var(--fsb-border);
    border-radius: 5px;
    border-radius: var(--fsb-radius);
    box-sizing: border-box;
    color: inherit;
    color: var(--fsb-color);
    background-color: #fff;
    background-color: var(--fsb-background);
    font-size: 1em;
    font-size: var(--fsb-font-size);
    box-shadow: none;
    box-shadow: var(--fsb-shadow);
}

.fsb-select svg {
    width: 1em;
    height: 1em;
    margin-right: 8px;
    margin-right: var(--fsb-padding-right);
    fill: currentColor;
    fill: var(--fsb-icon-color);
    pointer-events: none;
    display: none;
}

.fsb-label {
    display: none;
}

/* While it's common sense to avoid using !important as much as possible, it is used
 * here to prevent inheriting style from other rules that may target buttons. */
.fsb-button {
    display: flex !important;
    align-items: center;
    position: relative !important;
    width: 100% !important;
    height: 100% !important;
    padding: 8px 22px 8px 8px !important;
    padding: var(--fsb-padding) !important;
    padding-right: calc(var(--fsb-arrow-size) + var(--fsb-arrow-padding) + var(--fsb-padding-right)) !important;
    border: 0 !important;
    border-radius: inherit !important;
    color: inherit !important;
    background-color: inherit !important;
    font-size: 1em !important;
    font-family: inherit !important;
    text-align: inherit !important;
    white-space: nowrap;
    text-overflow: ellipsis;
    overflow: hidden;
}

.fsb-button > span {
    white-space: nowrap;
    text-overflow: ellipsis;
    overflow: hidden;
}

.fsb-button > span,
.fsb-option > span {
    pointer-events: none;
}

select[disabled] + .fsb-select .fsb-button {
    opacity: 0.4;
    pointer-events: none;
}

.fsb-button:after,
select[disabled] + .fsb-select .fsb-button[aria-expanded="true"]:after {
    content: "";
    display: block;
    position: absolute;
    width: 6px;
    width: var(--fsb-arrow-size);
    height: 6px;
    height: var(--fsb-arrow-size);
    right: 8px;
    right: var(--fsb-arrow-padding);
    top: 50%;
    transform: translateY(-65%) rotateZ(45deg);
    border: solid currentColor;
    border: solid var(--fsb-arrow-color);
    border-width: 0 1.5px 1.5px 0;
    box-sizing: border-box;
    transition: transform 0.3s ease-in-out;
    pointer-events: none;
}

.fsb-button[aria-expanded="true"]:after {
    transform: translateY(-35%) rotateZ(225deg);
}

.fsb-list,
select[disabled] + .fsb-select .fsb-list {
    display: block;
    visibility: hidden;
    position: absolute;
    height: 0;
    margin: 0;
    left: 0;
    top: 100%;
    z-index: 1;
    padding: 0;
    border: inherit;
    border: var(--fsb-list-border);
    border-radius: inherit;
    border-radius: var(--fsb-list-radius);
    box-sizing: border-box;
    color: inherit;
    color: var(--fsb-list-color);
    background-color: inherit;
    background-color: var(--fsb-list-background);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    opacity: 0;
    transition: opacity 0.2s ease-in-out;
    overflow: auto;
}

.fsb-top .fsb-list {
    top: auto;
    bottom: 100%;
    box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.2);
}

.fsb-button[aria-expanded="true"] + .fsb-list {
    height: auto;
    max-height: var(--fsb-list-height);
    visibility: visible;
    opacity: 1;
    width: 100%;
}

.fsb-option {
    display: flex;
    align-items: center;
    padding: var(--fsb-padding);
    white-space: nowrap;
    text-overflow: ellipsis;
    overflow: hidden;
}

.fsb-option:focus {
    outline: none;
    color: var(--fsb-hover-color);
    background-color: var(--fsb-hover-background);
}

.fsb-resize {
    display: block;
    height: 0;
    padding-right: 14px;
    padding-right: calc(var(--fsb-arrow-padding) * 2 + var(--fsb-arrow-size) - var(--fsb-padding-right));
    box-sizing: border-box;
}

.fsb-resize > * {
    display: block;
}