n8n/packages/design-system/theme/src/collapse.scss

@use "mixins/mixins";
@use "./common/var";
@use "common/transition";

@include mixins.b(collapse) {
	border-top: 1px solid var.$collapse-border-color;
	border-bottom: 1px solid var.$collapse-border-color;
}
@include mixins.b(collapse-item) {
	@include mixins.when(disabled) {
		.el-collapse-item__header {
			color: var.$font-color-disabled-base;
			cursor: not-allowed;
		}
	}
	@include mixins.e(header) {
		display: flex;
		align-items: center;
		height: var.$collapse-header-height;
		line-height: var.$collapse-header-height;
		background-color: var.$collapse-header-background-color;
		color: var.$collapse-header-font-color;
		cursor: pointer;
		border-bottom: 1px solid var.$collapse-border-color;
		font-size: var.$collapse-header-font-size;
		font-weight: 500;
		transition: border-bottom-color 0.3s;
		outline: none;
		@include mixins.e(arrow) {
			margin: 0 8px 0 auto;
			transition: transform 0.3s;
			font-weight: 300;
			@include mixins.when(active) {
				transform: rotate(90deg);
			}
		}
		&.focusing:focus:not(:hover) {
			color: var(--color-primary);
		}
		@include mixins.when(active) {
			border-bottom-color: transparent;
		}
	}

	@include mixins.e(wrap) {
		will-change: height;
		background-color: var.$collapse-content-background-color;
		overflow: hidden;
		box-sizing: border-box;
		border-bottom: 1px solid var.$collapse-border-color;
	}

	@include mixins.e(content) {
		padding-bottom: 25px;
		font-size: var.$collapse-content-font-size;
		color: var.$collapse-content-font-color;
		line-height: 1.769230769230769;
	}

	&:last-child {
		margin-bottom: -1px;
	}
}