woocommerce/plugins/woocommerce-blocks/assets/js/base/components/radio-control/style.scss

.wc-block-components-radio-control__option {
	@include reset-typography();
	@include with-translucent-border( 0 0 1px );
	display: block;
	padding: em($gap) 0 em($gap) em($gap-largest);
}

.wc-block-components-radio-control__option-layout {
	@include with-translucent-border( 0 0 1px );
	display: table;
	width: 100%;
}

.wc-block-components-radio-control__option .wc-block-components-radio-control__option-layout {
	&::after {
		display: none;
	}
}

.wc-block-components-radio-control__label-group,
.wc-block-components-radio-control__description-group {
	display: table-row;

	> span {
		display: table-cell;
	}

	.wc-block-components-radio-control__secondary-label,
	.wc-block-components-radio-control__secondary-description {
		text-align: right;
		min-width: 50%;
	}
}

.wc-block-components-radio-control__label,
.wc-block-components-radio-control__secondary-label {
	// Currently, max() CSS function calls need to be wrapped with unquote.
	// See: https://github.com/sass/sass/issues/2378#issuecomment-367490840
	// These values should be the same as the control input height.
	line-height: unquote("max(1.5rem, 24px)");
}

.wc-block-components-radio-control__description,
.wc-block-components-radio-control__secondary-description {
	@include font-size( small );
	line-height: 20px;
}

// Extra class for specificity.
.wc-block-components-radio-control {
	.wc-block-components-radio-control__input {
		appearance: none;
		background: #fff;
		border: 2px solid $input-border-gray;
		border-radius: 50%;
		display: inline-block;
		height: em(24px); // =1.5rem
		min-height: 24px;
		min-width: 24px;
		width: em(24px);
		// The code belows centers the input vertically.
		position: absolute;
		left: 0;
		top: 50%;
		transform: translate(0, -50%);

		&:checked::before {
			background: #000;
			border-radius: 50%;
			content: "";
			display: block;
			height: em(12px);
			left: 50%;
			margin: 0;
			min-height: 12px;
			min-width: 12px;
			position: absolute;
			top: 50%;
			transform: translate(-50%, -50%);
			width: em(12px);
		}

		.has-dark-controls & {
			border-color: $controls-border-dark;
			background-color: $input-background-dark;

			&:checked::before {
				background: $input-text-dark;
			}
		}
	}
}

.theme-twentytwentyone {
	.wc-block-components-radio-control .wc-block-components-radio-control__input {
		&:checked {
			border-width: 2px;

			&::before {
				background-color: var(--form--color-text);
			}
		}

		&::after {
			display: none;
		}
	}
}