bootstrap/scss/forms/_radio.scss

@use "../config" as *;
@use "../colors" as *;
@use "../variables" as *;
@use "../functions" as *;
@use "../vendor/rfs" as *;
@use "../mixins/border-radius" as *;
@use "../mixins/box-shadow" as *;
@use "../mixins/color-mode" as *;
@use "../mixins/focus-ring" as *;
@use "../mixins/transition" as *;
@use "form-variables" as *;

// scss-docs-start radio-variables
$radio-border-color: var(--#{$prefix}border-color) !default;
$radio-checked-bg: var(--#{$prefix}primary-base) !default;
$radio-checked-border-color: $radio-checked-bg !default;
$radio-disabled-bg: var(--#{$prefix}bg-3) !default;
$radio-disabled-opacity: .65 !default;
// scss-docs-end radio-variables

@layer forms {
  b-radiogroup {
    display: flex;
    gap: var(--#{$prefix}gap, .5rem);
    align-items: var(--#{$prefix}align-items, start);

    .description {
      color: var(--#{$prefix}secondary-text);
    }
  }

  .radio {
    // scss-docs-start radio-css-variables
    --#{$prefix}radio-bg: transparent;
    --#{$prefix}radio-border-color: #{$radio-border-color};
    --#{$prefix}radio-checked-bg: #{$radio-checked-bg};
    --#{$prefix}radio-checked-border-color: #{$radio-checked-border-color};
    --#{$prefix}radio-disabled-bg: #{$radio-disabled-bg};
    --#{$prefix}radio-disabled-opacity: #{$radio-disabled-opacity};
    // scss-docs-end radio-css-variables

    position: relative;
    flex-shrink: 0;
    width: 1rem;
    height: 1rem;
    margin-block: .125rem;
    appearance: none;
    background-color: var(--#{$prefix}radio-bg);
    border: 1px solid var(--#{$prefix}radio-border-color);
    // stylelint-disable-next-line property-disallowed-list
    border-radius: 50%;

    &:checked {
      color: var(--#{$prefix}primary-contrast);
      background-color: var(--#{$prefix}radio-checked-bg);
      border-color: var(--#{$prefix}radio-checked-border-color);

      &::before {
        position: absolute;
        inset: .25rem;
        content: "";
        background-color: currentcolor;
        // stylelint-disable-next-line property-disallowed-list
        border-radius: 50%;
      }
    }

    &:disabled {
      --#{$prefix}radio-bg: var(--#{$prefix}radio-disabled-bg);

      ~ label {
        color: var(--#{$prefix}secondary-text);
        cursor: default;
      }
    }
  }
}