.koe-steps {
	--koe-number-size: 54px;
	--koe-card-bg: transparent;
	--koe-border-color: rgba(0, 0, 0, 0.14);
	--koe-connector-color: rgba(0, 0, 0, 0.2);
	--koe-connector-width: 1px;
	--koe-duration: 650ms;
	--koe-distance: 28px;

	width: 100%;
}

.koe-steps,
.koe-steps * {
	box-sizing: border-box;
}

.koe-steps__list {
	position: relative;
	display: grid;
	gap: 24px;
	margin: 0;
	padding: 0;
	list-style: none;
}

.koe-steps__item {
	position: relative;
	min-width: 0;
}

.koe-steps__number {
	position: relative;
	z-index: 2;
	display: grid;
	place-items: center;
	flex: 0 0 auto;
	width: var(--koe-number-size);
	height: var(--koe-number-size);
	border: 1px solid currentColor;
	border-radius: 50%;
	color: inherit;
	background: var(--koe-card-bg);
	font-weight: 600;
	line-height: 1;
}

.koe-steps__card {
	position: relative;
	height: 100%;
	padding: 20px;
	border: 1px solid var(--koe-border-color);
	border-radius: 8px;
	background: var(--koe-card-bg);
}

.koe-steps__title {
	margin: 0;
	color: inherit;
	font-size: 1.125rem;
	line-height: 1.35;
}

.koe-steps__description {
	margin-top: 10px;
	color: inherit;
	line-height: 1.6;
}

.koe-steps__description > :first-child {
	margin-top: 0;
}

.koe-steps__description > :last-child {
	margin-bottom: 0;
}

/* Wariant: karty obok siebie. */
.koe-steps--horizontal .koe-steps__list {
	grid-template-columns: repeat(4, minmax(0, 1fr));
}

.koe-steps--horizontal:not(.koe-steps--hide-connector) .koe-steps__list::before {
	content: "";
	position: absolute;
	z-index: 0;
	top: calc(var(--koe-number-size) / 2);
	right: calc(var(--koe-number-size) / 2);
	left: calc(var(--koe-number-size) / 2);
	height: var(--koe-connector-width);
	background: var(--koe-connector-color);
}

.koe-steps--horizontal .koe-steps__item {
	display: flex;
	flex-direction: column;
	gap: 16px;
}

.koe-steps--horizontal .koe-steps__number {
	margin-inline: auto;
}

.koe-steps--horizontal.koe-steps--hide-numbers .koe-steps__item {
	gap: 0;
}

/* Wariant: jeden krok pod drugim. */
.koe-steps--vertical .koe-steps__list {
	grid-template-columns: 1fr;
}

.koe-steps--vertical:not(.koe-steps--hide-connector) .koe-steps__list::before {
	content: "";
	position: absolute;
	z-index: 0;
	top: calc(var(--koe-number-size) / 2);
	bottom: calc(var(--koe-number-size) / 2);
	left: calc(var(--koe-number-size) / 2);
	width: var(--koe-connector-width);
	background: var(--koe-connector-color);
	transform: translateX(-50%);
}

.koe-steps--vertical .koe-steps__item {
	display: grid;
	grid-template-columns: var(--koe-number-size) minmax(0, 1fr);
	gap: 20px;
	align-items: start;
}

.koe-steps--vertical.koe-steps--hide-numbers .koe-steps__item {
	grid-template-columns: 1fr;
	gap: 0;
}

/* Animacja jest uzbrajana przez JS dopiero po wyrenderowaniu widgetu. */
.koe-steps--animate.koe-motion-ready:not(.is-visible) .koe-steps__item {
	opacity: 0;
	transform: translateY(var(--koe-distance));
}

.koe-steps--animate.koe-motion-ready .koe-steps__item {
	transition:
		opacity var(--koe-duration) cubic-bezier(.2, .7, .2, 1) var(--koe-delay, 0ms),
		transform var(--koe-duration) cubic-bezier(.2, .7, .2, 1) var(--koe-delay, 0ms);
}

.koe-steps--animate.koe-motion-ready.is-visible .koe-steps__item {
	opacity: 1;
	transform: translateY(0);
}

.koe-steps__editor-placeholder {
	padding: 16px;
	border: 1px dashed rgba(0, 0, 0, 0.25);
	color: #666;
	text-align: center;
}

@media (max-width: 767px) {
	.koe-steps--vertical .koe-steps__item {
		grid-template-columns: var(--koe-number-size) minmax(0, 1fr);
		gap: 14px;
	}
}

@media (prefers-reduced-motion: reduce) {
	.koe-steps--animate.koe-motion-ready .koe-steps__item,
	.koe-steps--animate.koe-motion-ready:not(.is-visible) .koe-steps__item {
		opacity: 1;
		transform: none;
		transition: none;
	}
}