.igz-side-menu,
.igz-side-menu * {
	box-sizing: border-box;
}

.igz-side-menu {
	--igz-menu-accent: #1769aa;
	--igz-menu-border: #dce6ee;
	--igz-menu-text: #26384d;
	--igz-menu-muted: #597086;
	color: var(--igz-menu-text);
	font-family: inherit;
	margin: 0 0 24px;
	max-width: 100%;
	position: relative;
	width: 100%;
	z-index: 2;
}

.igz-side-menu button,
.igz-floating-menu {
	font-family: inherit;
}

.igz-side-menu__mobile-toggle {
	align-items: center;
	background: var(--igz-menu-accent);
	border: 0;
	border-radius: 9px;
	color: #ffffff;
	cursor: pointer;
	display: none;
	font-size: 15px;
	font-weight: 700;
	gap: 10px;
	justify-content: center;
	line-height: 1.35;
	padding: 13px 16px;
	width: 100%;
}

.igz-side-menu__mobile-toggle:hover,
.igz-side-menu__mobile-toggle:focus-visible {
	background: #11558b;
	color: #ffffff;
}

.igz-side-menu__mobile-toggle:focus-visible,
.igz-side-menu__chapter-toggle:focus-visible,
.igz-side-menu__subgroup-toggle:focus-visible,
.igz-side-menu__link:focus-visible,
.igz-floating-menu:focus-visible {
	outline: 3px solid #f4b942;
	outline-offset: 2px;
}

.igz-side-menu__menu-icon {
	display: inline-block;
	height: 14px;
	position: relative;
	width: 18px;
}

.igz-side-menu__menu-icon::before,
.igz-side-menu__menu-icon::after {
	background: currentColor;
	border-radius: 2px;
	box-shadow: 0 6px 0 currentColor;
	content: "";
	height: 2px;
	left: 0;
	position: absolute;
	top: 0;
	width: 18px;
}

.igz-side-menu__menu-icon::after {
	box-shadow: none;
	top: 12px;
}

.igz-side-menu__panel {
	background: #ffffff;
	border: 1px solid var(--igz-menu-border);
	border-radius: 12px;
	box-shadow: 0 9px 28px rgba(30, 41, 59, 0.1);
	max-height: min(78vh, 900px);
	opacity: 1;
	overflow-y: auto;
	transform: translateY(0);
	transition: max-height 240ms ease, opacity 180ms ease, transform 180ms ease;
	visibility: visible;
}

.igz-side-menu__title {
	background: #4659b9;
	border-bottom: 3px solid #f04444;
	border-radius: 11px 11px 0 0;
	color: #ffffff;
	font-size: 19px;
	font-weight: 700;
	line-height: 1.4;
	margin: 0;
	padding: 18px;
	text-align: center;
}

.igz-side-menu__chapters {
	padding: 10px;
}

.igz-side-menu__chapter {
	--igz-chapter-color: #357fc0;
	border: 1px solid #e4ebf1;
	border-radius: 9px;
	margin: 0 0 9px;
	overflow: hidden;
}

.igz-side-menu__chapter:last-child {
	margin-bottom: 0;
}

.igz-side-menu__chapter--motion,
.igz-side-menu__chapter--blue {
	--igz-chapter-color: #4659b9;
}

.igz-side-menu__chapter--thermal,
.igz-side-menu__chapter--green {
	--igz-chapter-color: #49b657;
}

.igz-side-menu__chapter--waves,
.igz-side-menu__chapter--orange {
	--igz-chapter-color: #f59a08;
}

.igz-side-menu__chapter--electricity,
.igz-side-menu__chapter--red {
	--igz-chapter-color: #f4433c;
}

.igz-side-menu__chapter--nuclear,
.igz-side-menu__chapter--purple {
	--igz-chapter-color: #a526b9;
}

.igz-side-menu__chapter--space,
.igz-side-menu__chapter--teal {
	--igz-chapter-color: #25b5ca;
}

.igz-side-menu__chapter-heading {
	font-size: inherit;
	line-height: inherit;
	margin: 0;
}

.igz-side-menu__chapter-heading-row {
	display: flex;
}

.igz-side-menu__chapter-toggle {
	align-items: center;
	background: var(--igz-chapter-color);
	border: 0;
	color: #ffffff;
	cursor: pointer;
	display: flex;
	font-size: 14px;
	font-weight: 700;
	gap: 10px;
	justify-content: space-between;
	line-height: 1.45;
	padding: 13px 14px;
	text-align: left;
	width: 100%;
}

.igz-side-menu__chapter-link {
	align-items: center;
	background: var(--igz-chapter-color);
	border-left: 1px solid rgba(255, 255, 255, 0.35);
	color: #ffffff;
	display: flex;
	flex: 0 0 42px;
	font-size: 17px;
	justify-content: center;
	text-decoration: none;
}

.igz-side-menu__chapter-link:hover {
	color: #ffffff;
	filter: brightness(0.9);
	text-decoration: none;
}

.igz-side-menu__chapter-link.is-active {
	box-shadow: inset 0 0 0 3px rgba(255, 255, 255, 0.7);
}

.igz-side-menu__chapter-toggle:hover {
	filter: brightness(0.94);
}

.igz-side-menu__chevron {
	border-bottom: 2px solid currentColor;
	border-right: 2px solid currentColor;
	display: block;
	flex: 0 0 auto;
	height: 8px;
	margin: 0 3px 4px 8px;
	transform: rotate(45deg);
	transition: transform 180ms ease, margin 180ms ease;
	width: 8px;
}

.igz-side-menu__chapter.is-open > .igz-side-menu__chapter-heading .igz-side-menu__chevron,
.igz-side-menu__topic.is-open > .igz-side-menu__topic-row .igz-side-menu__chevron {
	margin-bottom: -2px;
	transform: rotate(225deg);
}

.igz-side-menu__chapter-panel,
.igz-side-menu__subtopic-list {
	max-height: none;
	opacity: 1;
	overflow: visible;
	transition: max-height 220ms ease, opacity 160ms ease;
	visibility: visible;
}

.igz-side-menu.is-js-ready .igz-side-menu__chapter:not(.is-open) > .igz-side-menu__chapter-panel,
.igz-side-menu.is-js-ready .igz-side-menu__topic.has-children:not(.is-open) > .igz-side-menu__subtopic-list {
	max-height: 0;
	opacity: 0;
	overflow: hidden;
	visibility: hidden;
}

.igz-side-menu.is-js-ready .igz-side-menu__chapter.is-open > .igz-side-menu__chapter-panel,
.igz-side-menu.is-js-ready .igz-side-menu__topic.has-children.is-open > .igz-side-menu__subtopic-list {
	max-height: 1600px;
	opacity: 1;
	overflow: hidden;
	visibility: visible;
}

.igz-side-menu__topic-list,
.igz-side-menu__subtopic-list {
	list-style: none;
	margin: 0;
	padding: 6px;
}

.igz-side-menu__subtopic-list {
	background: #f8fafc;
	border-left: 2px solid #dbe6ee;
	margin: 0 8px 7px 18px;
	padding: 3px 3px 3px 5px;
}

.igz-side-menu__topic {
	margin: 0;
	padding: 0;
}

.igz-side-menu__topic-row {
	align-items: stretch;
	display: flex;
	gap: 0;
}

.igz-side-menu__link,
.igz-side-menu__group-label {
	border-left: 3px solid transparent;
	border-radius: 6px;
	color: var(--igz-menu-text);
	display: block;
	flex: 1 1 auto;
	font-size: 13.5px;
	line-height: 1.45;
	margin: 2px 0;
	padding: 9px 9px;
	text-decoration: none;
	transition: background-color 150ms ease, border-color 150ms ease, color 150ms ease;
}

.igz-side-menu__group-label {
	font-weight: 600;
}

.igz-side-menu__topic--depth-1 .igz-side-menu__link,
.igz-side-menu__topic--depth-1 .igz-side-menu__group-label {
	color: var(--igz-menu-muted);
	font-size: 12.5px;
	padding: 7px 7px;
}

.igz-side-menu__link:hover {
	background: #eef5fa;
	color: #0f568b;
	text-decoration: none;
}

.igz-side-menu__link.is-active,
.igz-side-menu__group-label.is-active {
	background: #e5f1fb;
	border-left-color: var(--igz-menu-accent);
	color: #0b548a;
	font-weight: 700;
}

.igz-side-menu__topic.has-active > .igz-side-menu__topic-row > .igz-side-menu__link,
.igz-side-menu__topic.has-active > .igz-side-menu__topic-row > .igz-side-menu__group-label {
	color: #0b548a;
	font-weight: 700;
}

.igz-side-menu__subgroup-toggle {
	align-items: center;
	align-self: center;
	background: transparent;
	border: 0;
	border-radius: 6px;
	color: #557085;
	cursor: pointer;
	display: flex;
	height: 36px;
	justify-content: center;
	margin: 2px;
	padding: 8px;
	width: 34px;
}

.igz-side-menu__subgroup-toggle:hover {
	background: #edf4f8;
	color: #0f568b;
}

.igz-floating-menu {
	align-items: center;
	background: #1769aa;
	border: 0;
	border-radius: 999px;
	bottom: 20px;
	box-shadow: 0 8px 24px rgba(30, 41, 59, 0.24);
	color: #ffffff;
	cursor: pointer;
	display: none;
	font-size: 14px;
	font-weight: 700;
	gap: 9px;
	line-height: 1;
	max-width: calc(100vw - 32px);
	padding: 13px 17px;
	position: fixed;
	right: 16px;
	z-index: 9998;
}

.igz-side-menu-js .igz-floating-menu {
	display: flex;
}

.igz-floating-menu:hover {
	background: #11558b;
	color: #ffffff;
}

@media (max-width: 921px) {
	.igz-side-menu.is-js-ready .igz-side-menu__mobile-toggle {
		display: flex;
	}

	.igz-side-menu.is-js-ready .igz-side-menu__panel {
		max-height: 0;
		opacity: 0;
		overflow: hidden;
		transform: translateY(-4px);
		visibility: hidden;
	}

	.igz-side-menu.is-js-ready.is-open .igz-side-menu__panel {
		margin-top: 10px;
		max-height: min(76vh, 900px);
		opacity: 1;
		overflow-y: auto;
		transform: translateY(0);
		visibility: visible;
	}
}

@media (min-width: 922px) {
	.igz-side-menu {
		max-width: 330px;
		position: sticky;
		top: 24px;
	}

	.igz-side-menu--left {
		margin-right: auto;
	}

	.igz-side-menu--right {
		margin-left: auto;
	}

	.igz-side-menu-js .igz-floating-menu {
		display: none;
	}
}

@media (prefers-reduced-motion: reduce) {
	.igz-side-menu__panel,
	.igz-side-menu__chapter-panel,
	.igz-side-menu__subtopic-list,
	.igz-side-menu__chevron,
	.igz-side-menu__link {
		transition: none;
	}
}