wp-calypso/apps/o2-blocks/src/todo/editor.scss

@import "@wordpress/base-styles/colors";

$color-accent-green: #31843f;
$color-move-button-icon: #555d66; // dark-gray-500
$color-add-button-text: #555d66; // dark-gray-500
$color-add-button-border: #ccd0d4; // light-gray-700
$color-add-button-icon: #7e8993; // dark-gray-200

.wp-block-a8c-todo {
	margin-bottom: 20px;

	// This would be ideal but it's being overridden.
	.wp-block-a8c-todo__list {
		list-style-type: none;
		margin-bottom: 20px;
	}

	// Individual to-do list item.
	.wp-block-a8c-todo__item {
		border-bottom: 1px solid $gray-200;
		display: flex;
		justify-content: space-between;
		padding: 4px 0;
	}

	// Status.
	.item-status {
		display: inline-block;
		content: "";
		border: 1px solid $gray-200;
		border-radius: 50%;
		margin: 7px 8px 0 0;
		height: 16px;
		width: 18px;
	}

	// Set width of title to 100% so it doesn't end up centered.
	.item-title {
		width: 100%;
	}

	// Completed checklist item.
	.wp-block-a8c-todo__item--done {
		color: $color-accent-green;

		.item-status {
			background: $color-accent-green;
			border: 0;
			position: relative;
		}

		.item-status .dashicon {
			fill: var(--color-text-inverted);
			position: absolute;
			top: -2px;
			left: -2px;
		}
	}

	// Up and down buttons.
	.move-buttons {
		width: 78px;
		text-align: right;
	}

	.move-buttons .components-button {
		padding: 0;
		border: 1px solid transparent;
		border-radius: 4px;
		box-shadow: none;
		background: none;
		color: $gray-200;

		.dashicon {
			fill: $gray-200;
		}

		&:hover {
			border-color: $gray-100;

			.dashicon {
				fill: $color-move-button-icon;
			}
		}
	}

	// Add new item form
	.add-new-todo-item-form {
		align-items: center;
		// Only show the "add new" form when it's strictly needed.
		display: none;

		.components-button {
			font-size: 13px !important; // yep, I'm a monster.
			color: $color-add-button-text;
			border: 1px solid $color-add-button-border;
			background: $gray-100;
			box-shadow: 0 1px 0 $color-add-button-border;
			margin: 0;
			height: 33px;
			line-height: 32px;
			border-radius: 3px;
			padding: 0 12px 2px;
			white-space: nowrap;

			.dashicon {
				fill: $gray-600;
				vertical-align: middle;
				display: inline;
			}
		}
	}
}

// We need to be super-specific here to be sure we're overwriting the default UL styling.
.edit-post-visual-editor .wp-block-a8c-todo .wp-block-a8c-todo__list {
	list-style-type: none;
}

// Same for the "add item" input.
.block-editor-block-list__block .wp-block-a8c-todo .add-new-item {
	width: 100%;
	margin-right: 6px;
	padding: 7.5px 8px;
}

// P2-specific styling.
body:not(.wp-admin) .gutenberg {
	.wp-block-a8c-todo .wp-block-a8c-todo__item {
		padding: 10px 0 4px;
	}
}

.block-editor-block-list__block.is-selected,
.block-editor-block-list__block.is-typing {
	.wp-block-a8c-todo .add-new-todo-item-form {
		display: flex;
	}
}