// stylelint-disable selector-no-qualifying-type

//
// Base styles
//

.btn {
    display: inline-block;
    font-weight: $btn-font-weight;
    text-align: center;
    white-space: nowrap;
    vertical-align: middle;
    user-select: none;
    border: $btn-border-width solid transparent;
    @include button-size(
        $btn-padding-y,
        $btn-padding-x,
        $font-size-base,
        $btn-line-height,
        $btn-border-radius
    );
    @include transition($btn-transition);

    // Share hover and focus styles
    @include hover-focus {
        text-decoration: none;
    }

    &:focus,
    &.focus {
        outline: 0;
        box-shadow: $btn-focus-box-shadow;
    }

    // Disabled comes first so active can properly restyle
    &.disabled,
    &:disabled {
        opacity: $btn-disabled-opacity;
        @include box-shadow(none);
    }

    // Opinionated: add "hand" cursor to non-disabled .btn elements
    &:not(:disabled):not(.disabled):not(.closed) {
        cursor: pointer;
    }

    &.closed {
        cursor: not-allowed;
    }

    &:not(:disabled):not(.disabled):active,
    &:not(:disabled):not(.disabled).active {
        background-image: none;
        @include box-shadow($btn-active-box-shadow);

        &:focus {
            @include box-shadow($btn-focus-box-shadow, $btn-active-box-shadow);
        }
    }
}

.bg-yellow-gradient {
    .btn {
        &:hover,
        &:active,
        &:focus {
            background-color: $black !important;
            border: $black !important;
            color: $yellow !important;

            &:before {
                border: $black !important;
            }
        }
    }
}

// Future-proof disabling of clicks on `<a>` elements
a.btn.disabled,
fieldset:disabled a.btn {
    pointer-events: none;
}

//
// Alternate buttons
//

@each $color, $value in $theme-colors {
    .btn-#{$color} {
        @include button-variant($value, $value);
    }
}

@each $color, $value in $theme-colors {
    .btn-outline-#{$color} {
        @include button-outline-variant($value);
    }
}

//
// Link buttons
//

// Make a button look and behave like a link
.btn-link {
    font-weight: $font-weight-normal;
    color: $link-color;
    background-color: transparent;

    @include hover {
        color: $link-hover-color;
        text-decoration: $link-hover-decoration;
        background-color: transparent;
        border-color: transparent;
    }

    &:focus,
    &.focus {
        text-decoration: $link-hover-decoration;
        border-color: transparent;
        box-shadow: none;
    }

    &:disabled,
    &.disabled {
        color: $btn-link-disabled-color;
        pointer-events: none;
    }

    // No need for an active state here
}

//
// Button Sizes
//

.btn-lg {
    @include button-size(
        $btn-padding-y-lg,
        $btn-padding-x-lg,
        $font-size-base,
        $btn-line-height-lg,
        $btn-border-radius-lg
    );
}

.btn-sm {
    @include button-size(
        $btn-padding-y-sm,
        $btn-padding-x-sm,
        $font-size-sm,
        $btn-line-height-sm,
        $btn-border-radius-sm
    );
}

//
// Block button
//

.btn-block {
    display: block;
    width: 100%;

    // Vertically space out multiple block buttons
    + .btn-block {
        margin-top: $btn-block-spacing-y;
    }
}

// Specificity overrides
input[type='submit'],
input[type='reset'],
input[type='button'] {
    &.btn-block {
        width: 100%;
    }
}