/* Sprawdzono Spis Treści */

.sstoc {
	--sstoc-title-size: 20px;
	--sstoc-title-color: #3d2a52;
	--sstoc-title-weight: 700;
	--sstoc-item-size: 15px;
	--sstoc-item-color: #4a4a4a;
	--sstoc-item-weight: 400;
	--sstoc-item-gap: 7px;
	--sstoc-accent: #a6559d;
	--sstoc-bg: #ffffff;
	--sstoc-border: #ece7f2;
	--sstoc-frame: 1px;
	--sstoc-rail: 1px;
	--sstoc-radius: 12px;
	--sstoc-padding: 20px;
	--sstoc-sticky-top: 100px;

	box-sizing: border-box;
	background: var(--sstoc-bg);
	border: var(--sstoc-frame) solid var(--sstoc-border);
	border-radius: var(--sstoc-radius);
	padding: var(--sstoc-padding);
	font-family: inherit;
	line-height: 1.45;
	width: 100%;
}

.sstoc *,
.sstoc *::before,
.sstoc *::after {
	box-sizing: border-box;
}

/* Ukryty do czasu zbudowania listy, żeby nie mrugała pusta ramka */
.sstoc--loading,
.sstoc--empty {
	display: none;
}

.sstoc--sticky {
	position: -webkit-sticky;
	position: sticky;
	top: var(--sstoc-sticky-top);
	max-height: calc(100vh - var(--sstoc-sticky-top) - 24px);
	overflow-y: auto;
	overscroll-behavior: contain;
	scrollbar-width: thin;
	scrollbar-color: var(--sstoc-border) transparent;
}

.sstoc--sticky::-webkit-scrollbar {
	width: 6px;
}

.sstoc--sticky::-webkit-scrollbar-thumb {
	background: var(--sstoc-border);
	border-radius: 6px;
}

/* --- Nagłówek --- */

.sstoc__head {
	display: flex;
	align-items: center;
	gap: 10px;
	margin: 0 0 12px;
}

.sstoc__title {
	position: relative;
	display: block;
	flex: 1 1 auto;
	font-size: var(--sstoc-title-size);
	line-height: 1.25;
	font-weight: var(--sstoc-title-weight);
	color: var(--sstoc-title-color);
	padding-left: 12px;
}

.sstoc__title::before {
	content: "";
	position: absolute;
	left: 0;
	top: 0.15em;
	bottom: 0.15em;
	width: 4px;
	border-radius: 4px;
	background: var(--sstoc-accent);
}

.sstoc--nobar .sstoc__title {
	padding-left: 0;
}

.sstoc--nobar .sstoc__title::before {
	display: none;
}

.sstoc--title-center .sstoc__head {
	justify-content: center;
}

.sstoc--title-center .sstoc__title {
	flex: 0 1 auto;
	text-align: center;
}

/* --- Lista --- */

.sstoc__nav {
	overflow: hidden;
}

.sstoc__list {
	list-style: none;
	margin: 0;
	padding: 0;
	border-left: var(--sstoc-rail) solid var(--sstoc-border);
	counter-reset: sstoc;
}

.sstoc__item {
	list-style: none;
	margin: 0;
	padding: 0;
}

.sstoc__item + .sstoc__item {
	margin-top: var(--sstoc-item-gap);
}

.sstoc__link {
	display: block;
	position: relative;
	margin-left: calc(-1 * var(--sstoc-rail));
	padding: 3px 4px 3px 14px;
	border-left: 2px solid transparent;
	border-radius: 0 6px 6px 0;
	color: var(--sstoc-item-color);
	font-size: var(--sstoc-item-size);
	font-weight: var(--sstoc-item-weight);
	line-height: 1.45;
	text-decoration: none;
	box-shadow: none;
	transition: color .18s ease, border-color .18s ease, background-color .18s ease;
}

.sstoc__link:hover,
.sstoc__link:focus-visible {
	color: var(--sstoc-accent);
	border-left-color: var(--sstoc-accent);
	background: rgba(0, 0, 0, .03);
	text-decoration: none;
}

.sstoc__item.is-active > .sstoc__link {
	color: var(--sstoc-accent);
	border-left-color: var(--sstoc-accent);
}

/* Poziom H3 */

.sstoc__item--h3 .sstoc__link {
	padding-left: 28px;
	font-size: calc(var(--sstoc-item-size) - 1px);
	opacity: .92;
}

/* Numeracja */

.sstoc--numbered .sstoc__item--h2 {
	counter-increment: sstoc;
}

.sstoc--numbered .sstoc__item--h2 > .sstoc__link::before {
	content: counter(sstoc) ". ";
	color: var(--sstoc-accent);
	font-weight: 600;
}

/* Obcinanie do jednej linijki */

.sstoc--truncate .sstoc__link {
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
}

/* --- Rozwijanie na mobile --- */

.sstoc__toggle {
	display: none;
	flex: 0 0 auto;
	width: 30px;
	height: 30px;
	padding: 0;
	margin: 0;
	border: 0;
	background: transparent;
	cursor: pointer;
	align-items: center;
	justify-content: center;
}

.sstoc__chevron {
	display: block;
	width: 9px;
	height: 9px;
	border-right: 2px solid var(--sstoc-title-color);
	border-bottom: 2px solid var(--sstoc-title-color);
	transform: rotate(45deg) translate(-2px, -2px);
	transition: transform .2s ease;
}

@media (max-width: 767px) {

	.sstoc--collapsible .sstoc__toggle {
		display: flex;
	}

	.sstoc--collapsible .sstoc__head {
		margin-bottom: 0;
		cursor: pointer;
	}

	.sstoc--collapsible .sstoc__nav {
		display: grid;
		grid-template-rows: 0fr;
		transition: grid-template-rows .25s ease;
	}

	.sstoc--collapsible .sstoc__nav > .sstoc__list {
		min-height: 0;
		overflow: hidden;
	}

	.sstoc--collapsible.is-open .sstoc__head {
		margin-bottom: 12px;
	}

	.sstoc--collapsible.is-open .sstoc__nav {
		grid-template-rows: 1fr;
	}

	.sstoc--collapsible.is-open .sstoc__chevron {
		transform: rotate(-135deg) translate(-2px, -2px);
	}

	.sstoc--sticky {
		position: static;
		max-height: none;
		overflow: visible;
	}
}

@media (prefers-reduced-motion: reduce) {

	.sstoc__link,
	.sstoc__chevron,
	.sstoc__nav {
		transition: none;
	}
}