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path: root/src/objects/_action-button.scss
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@use 'iro-sass/src/index' as iro;
@use '../functions' as fn;

@include iro.props-namespace('action-button') {
    @include iro.props-store((
        --dims: (
            --line-height: 1.4,
            --pad-i:       fn.global-dim(--size --100),
            --pad-b:       fn.global-dim(--size --85),
            --border:      fn.global-dim(--border --thin),
            --rounding:    fn.global-dim(--rounding),
            
            --key-focus: (
                --border:        fn.global-dim(--key-focus --border),
                --border-offset: fn.global-dim(--key-focus --border-offset),
                --outline:       fn.global-dim(--key-focus --outline),
            ),
        ),
        --colors: (
            --bg:     fn.global-color(--base --75),
            --label:  fn.global-color(--text),
            --border: fn.global-color(--border-strong),
    
            --hover: (
                --bg:     fn.global-color(--base --50),
                --label:  fn.global-color(--heading),
                --border: fn.global-color(--text-mute-more),
            ),
            --active: (
                --bg:     fn.global-color(--border-mute),
                --label:  fn.global-color(--heading),
                --border: fn.global-color(--text-mute-more),
            ),
            --selected: (
                --bg:     fn.global-color(--border-mute),
                --label:  fn.global-color(--text),
                --border: fn.global-color(--text-disabled),

                --hover: (
                    --label:  fn.global-color(--heading),
                    --border: fn.global-color(--text-mute-more),
                ),
            ),
            --disabled: (
                --bg:     fn.global-color(--bg-base),
                --label:  fn.global-color(--text-disabled),
                --border: fn.global-color(--border-mute),
            ),
            --key-focus: (
                --border:  fn.global-color(--focus --border),
                --outline: fn.global-color(--focus --outline),
            ),
            --quiet: (
                --label: fn.global-color(--text),
    
                --hover: (
                    --bg:    fn.global-color(--border-mute),
                    --label: fn.global-color(--heading),
                ),
                --active: (
                    --bg:    fn.global-color(--border),
                    --label: fn.global-color(--heading),
                ),
                --selected: (
                    --bg:    fn.global-color(--border-mute),
                    --label: fn.global-color(--text),
    
                    --hover: (
                        --bg:    fn.global-color(--border),
                        --label: fn.global-color(--heading),
                    ),
                ),
                --disabled: (
                    --label: fn.global-color(--text-disabled),
                ),
            ),
        ),
    ));

    @include iro.bem-object(iro.props-namespace()) {
        display:          inline-block;
        position:         relative;
        padding-block:    fn.dim(--pad-b);
        padding-inline:   fn.dim(--pad-i);
        border:           fn.dim(--border) solid fn.color(--disabled --border);
        border-radius:    fn.dim(--rounding);
        background-color: fn.color(--disabled --bg);
        color:            fn.color(--disabled --label);
        line-height:      fn.dim(--line-height);
        text-align:       center;
        text-decoration:  none;
        text-overflow:    ellipsis;
        vertical-align:   top;
        white-space:      nowrap;

        &::after {
            content:        '';
            display:        none;
            position:       absolute;
            z-index:        1;
            inset:          calc(-1 * fn.dim(--border) - fn.dim(--key-focus --border-offset));
            border-radius:  calc(fn.dim(--rounding) + fn.dim(--key-focus --border-offset));
            outline:        fn.color(--key-focus --border) solid fn.dim(--key-focus --border);
            box-shadow:     0 0 0 calc(fn.dim(--key-focus --border) + fn.dim(--key-focus --outline)) fn.color(--key-focus --outline);
            pointer-events: none;
        }

        &:link,
        &:visited,
        &:enabled {
            border-color:     fn.color(--border);
            background-color: fn.color(--bg);
            color:            fn.color(--label);

            &:hover,
            &:focus-visible {
                border-color:     fn.color(--hover --border);
                background-color: fn.color(--hover --bg);
                color:            fn.color(--hover --label);
            }
    
            &:active {
                border-color:     fn.color(--active --border);
                background-color: fn.color(--active --bg);
                color:            fn.color(--active --label);
            }
    
            &:focus-visible {
                &::after {
                    display: block;
                }
            }
        }
    
        @include iro.bem-is('selected') {
            &:link,
            &:visited,
            &:enabled {
                border-color:     fn.color(--selected --border);
                background-color: fn.color(--selected --bg);
                color:            fn.color(--selected --label);
        
                &:hover,
                &:active,
                &:focus-visible {
                    border-color:     fn.color(--selected --hover --border);
                    background-color: fn.color(--selected --bg);
                    color:            fn.color(--selected --hover --label);
                }
    
                @include iro.bem-at-theme('keyboard') {
                    &:focus {
                        background-color: fn.color(--selected --bg);
                        color:            fn.color(--selected --hover --label);
                    }
                }
            }
        }
    
        @include iro.bem-modifier('quiet') {
            border-color:     transparent;
            background-color: transparent;
            box-shadow:       none;
            color:            fn.color(--quiet --disabled --label);
    
            &:link,
            &:visited,
            &:enabled {
                border-color:     transparent;
                background-color: transparent;
                box-shadow:       none;
                color:            fn.color(--quiet --label);

                &:hover,
                &:focus-visible {
                    border-color:     transparent;
                    background-color: fn.color(--quiet --hover --bg);
                    box-shadow:       none;
                    color:            fn.color(--quiet --hover --label);
                }
    
                &:active {
                    border-color:     transparent;
                    background-color: fn.color(--quiet --active --bg);
                    box-shadow:       none;
                    color:            fn.color(--quiet --active --label);
                }
    
                @include iro.bem-at-theme('keyboard') {
                    &:focus {
                        background-color: fn.color(--quiet --hover --bg);
                        color:            fn.color(--quiet --hover --label);
                    }
                }
            }
    
            @include iro.bem-is('selected') {
                background-color: fn.color(--quiet --selected --bg);
                color:            fn.color(--quiet --disabled --label);

                &:link,
                &:visited,
                &:enabled {
                    border-color:     transparent;
                    background-color: fn.color(--quiet --selected --bg);
                    box-shadow:       none;
                    color:            fn.color(--quiet --selected --label);

                    &:hover,
                    &:active,
                    &:focus-visible {
                        border-color:     transparent;
                        background-color: fn.color(--quiet --selected --hover --bg);
                        box-shadow:       none;
                        color:            fn.color(--quiet --selected --hover --label);
                    }
                }
            }
        }

        @include iro.bem-modifier('round') {
            inline-size:    calc(1em * fn.dim(--line-height) + 2 * fn.dim(--pad-b));
            padding-inline: 0;
            border-radius:  100em;
        }
    }
}