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@use 'iro-sass/src/index' as iro;
@use '../functions' as fn;

@include iro.props-namespace('radio') {
    @include iro.props-store((
        --dims: (
            --diameter:        fn.global-dim(--size --200),
            --label-gap:       fn.global-dim(--size --125),
            --border:          fn.global-dim(--border --medium),
            --pad-i:           fn.global-dim(--size --65),
            --pad-b:           fn.global-dim(--size --65),
            --rounding:        fn.global-dim(--rounding),
            --spacing-sibling: fn.global-dim(--size --300),
        ),
        --colors: (
            --circle-border: fn.global-color(--text-mute),
            --circle-bg:     fn.global-color(--base --75),
    
            --hover: (
                --label:         fn.global-color(--heading),
                --circle-border: fn.global-color(--text),
            ),
            --accent: (
                --circle-border: fn.global-color(--accent --900),
    
                --hover: (
                    --circle-border: fn.global-color(--accent --1000),
                ),
            ),
            --key-focus: (
                --bg:            fn.global-color(--focus-static --400),
                --label:         fn.global-color(--focus-static --400-text),
                --circle-border: fn.global-color(--focus-static --1000),
                --circle-bg:     fn.global-color(--focus-static --1000-text),
            ),
            --disabled: (
                --label:         fn.global-color(--text-disabled),
                --circle-border: fn.global-color(--border-strong),
                --circle-bg:     fn.global-color(--base --75),
            )
        ),
    ));

    @include iro.bem-object(iro.props-namespace()) {
        display:        inline-flex;
        position:       relative;
        align-items:    flex-start;
        margin-inline:  calc(-1 * fn.dim(--pad-i)) calc(fn.dim(--spacing-sibling) - fn.dim(--pad-i));
        padding-block:  fn.dim(--pad-b);
        padding-inline: fn.dim(--pad-i);

        @include iro.bem-elem('bg') {
            display:        block;
            position:       absolute;
            z-index:        -1;
            inset-block:    0;
            inset-inline:   0;
            border-radius:  fn.dim(--rounding);
            pointer-events: none;
        }
    
        @include iro.bem-elem('circle') {
            display:            block;
            box-sizing:         border-box;
            flex:               0 0 auto;
            inline-size:        fn.dim(--diameter);
            block-size:         fn.dim(--diameter);
            margin-block-start: calc(.5 * (fn.global-dim(--font --standard --line-height) * 1em - fn.dim(--diameter)));
            border-radius:      2em;
            background-color:   fn.color(--circle-border);
    
            &::after {
                content:            '';
                display:            block;
                position:           relative;
                inset-block-start:  fn.dim(--border);
                inset-inline-start: fn.dim(--border);
                inline-size:        calc(fn.dim(--diameter) - 2 * fn.dim(--border));
                block-size:         calc(fn.dim(--diameter) - 2 * fn.dim(--border));
                transition:         transform .2s ease;
                border-radius:      fn.dim(--diameter);
                background-color:   fn.color(--circle-bg);
            }
        }
    
        @include iro.bem-elem('label') {
            align-self:          baseline;
            margin-inline-start: fn.dim(--label-gap);
        }
    
        @include iro.bem-elem('native') {
            position:           absolute;
            inset-block-start:  0;
            inset-inline-start: 0;
            inline-size:        100%;
            block-size:         100%;
            margin:             0;
            padding:            0;
            overflow:           hidden;
            opacity:            .0001;
    
            &:hover {
                @include iro.bem-sibling-elem('label') {
                    color: fn.color(--hover --label);
                }
    
                @include iro.bem-sibling-elem('circle') {
                    background-color: fn.color(--hover --circle-border);
                }
            }
    
            &:checked {
                @include iro.bem-sibling-elem('circle') {
                    &::after {
                        transform: scale(.44);
                    }
                }
            }
    
            &:disabled {
                @include iro.bem-sibling-elem('label') {
                    color: fn.color(--disabled --label);
                }
    
                @include iro.bem-sibling-elem('circle') {
                    background-color: fn.color(--disabled --circle-border);
    
                    &::after {
                        background-color: fn.color(--disabled --circle-bg);
                    }
                }
            }

            &:focus-visible {
                @include iro.bem-sibling-elem('bg') {
                    background-color: fn.color(--key-focus --bg);
                }

                @include iro.bem-sibling-elem('label') {
                    color: fn.color(--key-focus --label);
                }

                @include iro.bem-sibling-elem('circle') {
                    background-color: fn.color(--key-focus --circle-border);

                    &::after {
                        background-color: fn.color(--key-focus --circle-bg);
                    }
                }
            }
        }
    
        @include iro.bem-modifier('standalone') {
            @include iro.bem-elem('circle') {
                margin-block-start: 0;
            }
        }
    
        @include iro.bem-modifier('accent') {
            @include iro.bem-elem('native') {
                &:checked {
                    @include iro.bem-sibling-elem('circle') {
                        background-color: fn.color(--accent --circle-border);
                    }
        
                    &:hover {
                        @include iro.bem-sibling-elem('circle') {
                            background-color: fn.color(--accent --hover --circle-border);
                        }
                    }
                }
    
                &:disabled {
                    @include iro.bem-sibling-elem('circle') {
                        background-color: fn.color(--disabled --circle-border);
        
                        &::after {
                            background-color: fn.color(--disabled --circle-bg);
                        }
                    }
        
                    &:checked {
                        @include iro.bem-sibling-elem('circle') {
                            background-color: fn.color(--disabled --circle-border);
                        }
                    }
                }

                &:focus-visible {
                    @include iro.bem-sibling-elem('circle') {
                        background-color: fn.color(--key-focus --circle-border);
                    }
                }
            }
        }
    }
}