.input-group {
    position: relative;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
    -webkit-box-align: stretch;
    -ms-flex-align: stretch;
    align-items: stretch;
    box-sizing: border-box;
    font-family: var(--smart-font-family);
}

.input-group-append,
.input-group-prepend {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    box-sizing: border-box;
}

.input-group-prepend {
    margin-right: -1px;
}

.input-group-append {
    margin-left: -1px;
}

    .input-group-append smart-button + smart-button,
    .input-group-append smart-button + .input-group-text,
    .input-group-append .input-group-text + smart-button,
    .input-group-append .input-group-text + .input-group-text,
    .input-group-prepend smart-button + smart-button,
    .input-group-prepend smart-button + .input-group-text,
    .input-group-prepend .input-group-text + smart-button,
    .input-group-prepend .input-group-text + .input-group-text {
        margin-left: -1px;
    }

.input-group > .input-group-append > smart-button,
.input-group > .input-group-append > .input-group-text,
.input-group > .input-group-prepend:first-child > smart-button:not(:first-child),
.input-group > .input-group-prepend:first-child > .input-group-text:not(:first-child),
.input-group > .input-group-prepend:not(:first-child) > smart-button,
.input-group > .input-group-prepend:not(:first-child) > .input-group-text {
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
}

.input-group > .input-group-append:last-child > smart-button:not(:last-child):not(.dropdown-toggle),
.input-group > .input-group-append:last-child > .input-group-text:not(:last-child),
.input-group > .input-group-append:not(:last-child) > smart-button,
.input-group > .input-group-append:not(:last-child) > .input-group-text,
.input-group > .input-group-prepend > smart-button,
.input-group > .input-group-prepend > .input-group-text {
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
}

.input-group-text,
.form-control {
    border-radius: var(--smart-border-radius);
}

.input-group-prepend,
.input-group-append,
.form-control {
    height: auto;
}

    .input-group-prepend > smart-button,
    .input-group-append > smart-button {
        height: 100%;
    }

.input-group-text {
    display: flex;
    align-items: center;
    padding: .375rem .75rem;
    margin-bottom: 0;
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.5;
    color: var(--smart-surface-color);
    text-align: center;
    white-space: nowrap;
    background-color: var(--smart-surface);
    border: 1px solid var(--smart-border);
}

.form-control {
    display: block;
    width: 100%;
    padding: .375rem .75rem;
    font-size: var(--smart-font-size);
    line-height: 1.5;
    color: #495057;
    background-color: var(--smart-background);
    background-clip: padding-box;
    border: 1px solid var(--smart-border);
    transition: border-color .15s ease-in-out,box-shadow .15s ease-in-out;
}

    .form-control:focus,
    .form-control[focus] {
        color: var(--smart-color);
        background-color: var(--smart-background);
        border-color: var(--smart-primary);
        outline: 0;
    }

.input-group smart-button[focus] {
    color: var(--smart-color);
    background-color: var(--smart-background);
    border-color: var(--smart-primary);
    outline: 0;
    opacity: 1;
}

.input-group > .custom-file,
.input-group > .custom-select,
.input-group > .form-control {
    position: relative;
    flex: 1 1 auto;
    width: 1%;
    margin-bottom: 0;
}

    .input-group > .custom-select:not(:first-child),
    .input-group > .form-control:not(:first-child) {
        border-top-left-radius: 0;
        border-bottom-left-radius: 0;
    }

    .input-group > .custom-file:focus,
    .input-group > .custom-select:focus,
    .input-group > .form-control:focus,
    .input-group > .form-control[focus],
    .input-group smart-button[focus] {
        z-index: 3;
    }

    .input-group > .form-control:not(:first-child) {
        border-top-left-radius: 0;
        border-bottom-left-radius: 0;
    }

    .input-group > .custom-select:not(:last-child),
    .input-group > .form-control:not(:last-child) {
        border-top-right-radius: 0;
        border-bottom-right-radius: 0;
    }

    .input-group > .custom-file + .custom-file,
    .input-group > .custom-file + .custom-select,
    .input-group > .custom-file + .form-control,
    .input-group > .custom-select + .custom-file,
    .input-group > .custom-select + .custom-select,
    .input-group > .custom-select + .form-control,
    .input-group > .form-control + .custom-file,
    .input-group > .form-control + .custom-select,
    .input-group > .form-control + .form-control {
        margin-left: -1px;
    }