/* Section Nav. Colours and sizes come from CSS variables set on .snav (Settings > Section Nav). */
.snav {
	--snav-accent: #251a5a;
	--snav-accent-text: #fff;
	--snav-highlight: #e5484d;
	--snav-bg: #e8e7ee;
	--snav-text: #1c1740;
	--snav-radius: 6px;
	--snav-font-size: 16px;
	--snav-item-pad: 8px;
	--snav-tint: color-mix(in srgb, var(--snav-accent) 9%, transparent);
	--snav-muted: color-mix(in srgb, var(--snav-text) 65%, transparent);
	box-sizing: border-box;
	padding: 20px;
	background: var(--snav-bg);
	color: var(--snav-text);
	border-radius: var(--snav-radius);
	font-size: var(--snav-font-size);
	line-height: 1.35;
}
.snav *,
.snav *::before,
.snav *::after {
	box-sizing: border-box;
}
.snav a,
.snav a:hover,
.snav a:focus {
	text-decoration: none;
}
.snav a:focus-visible,
.snav .snav__toggle:focus-visible {
	outline: 2px solid var(--snav-highlight);
	outline-offset: 2px;
}

.snav .snav__toggle:focus:not(:focus-visible) {
	outline: none;
}

/* Heading */
.snav .snav__heading {
	display: flex;
	align-items: center;
	gap: 12px;
	margin: 0 0 16px;
	padding: 0;
	font-size: 1.6em;
	line-height: 1.2;
	color: var(--snav-accent);
}
.snav .snav__heading::after {
	content: "";
	flex: 0 0 48px;
	height: 3px;
	border-radius: 2px;
	background: var(--snav-highlight);
}

/* Link back to the parent section */
.snav .snav__up {
	display: inline-flex;
	align-items: center;
	gap: 4px;
	margin: 0 0 10px;
	font-size: 0.875em;
	font-weight: 600;
	color: var(--snav-muted);
}
.snav .snav__up:hover {
	color: var(--snav-accent);
}
.snav .snav__up-icon {
	transform: rotate(90deg);
}

/* Section root */
.snav .snav__root {
	display: block;
	padding: 12px 14px;
	background: var(--snav-accent);
	color: var(--snav-accent-text);
	font-weight: 700;
	border-radius: calc(var(--snav-radius) * 0.5);
}
.snav .snav__root.is-current {
	box-shadow: inset 4px 0 0 var(--snav-highlight);
}

/* Lists */
.snav .snav__list {
	list-style: none;
	margin: 14px 0 0;
	padding: 0;
}
.snav .snav__item {
	margin: 0;
	padding: 0;
	list-style: none;
}
.snav .snav__link {
	display: block;
	padding: var(--snav-item-pad) 14px;
	color: var(--snav-text);
	font-weight: 600;
	transition: background-color 0.15s ease, color 0.15s ease;
}
.snav .snav__link:hover {
	background: var(--snav-tint);
	color: var(--snav-accent);
}
.snav .snav__item.is-current > .snav__link {
	color: var(--snav-accent);
	font-weight: 700;
}

/* Parent section group */
.snav .snav__group {
	margin-top: 20px;
	padding-top: 16px;
	border-top: 1px solid color-mix(in srgb, var(--snav-text) 15%, transparent);
}
.snav .snav__sublabel {
	display: block;
	font-size: 0.75em;
	font-weight: 700;
	letter-spacing: 0.06em;
	text-transform: uppercase;
	color: var(--snav-muted);
}
.snav a.snav__sublabel:hover {
	color: var(--snav-accent);
}
.snav .snav__list--secondary {
	margin-top: 8px;
}
.snav .snav__list--secondary .snav__link {
	font-weight: 500;
}

/* Mobile toggle (shown by the inline media query) */
.snav .snav__toggle {
	display: none;
	align-items: center;
	justify-content: space-between;
	gap: 12px;
	width: 100%;
	margin: 0;
	padding: 0;
	border: 0;
	background: none;
	color: var(--snav-accent);
	font: inherit;
	font-weight: 700;
	text-align: left;
	cursor: pointer;
}
.snav .snav__toggle:hover,
.snav .snav__toggle:focus {
	background: none;
	color: var(--snav-accent);
}
.snav .snav__toggle-icon {
	flex: none;
	transition: transform 0.2s ease;
}
.snav.is-open .snav__toggle-icon {
	transform: rotate(180deg);
}
.snav:not(.snav--js) .snav__toggle {
	display: none !important;
}

/* Preset: classic. Solid header, list hangs off a vertical rule. */
.snav--classic .snav__list {
	border-left: 2px solid var(--snav-accent);
}
.snav--classic .snav__link {
	margin-left: -2px;
	border-left: 2px solid transparent;
	padding-left: 22px;
}
.snav--classic .snav__item.is-current > .snav__link {
	border-left-color: var(--snav-highlight);
	border-left-width: 4px;
	padding-left: 20px;
	background: var(--snav-tint);
}

/* Preset: soft. Rounded card, pill items, filled current page. */
.snav--soft {
	padding: 22px;
	border: 1px solid color-mix(in srgb, var(--snav-text) 10%, transparent);
}
.snav--soft .snav__heading::after {
	display: none;
}
.snav--soft .snav__heading {
	font-size: 1.25em;
}
.snav--soft .snav__root {
	background: none;
	color: var(--snav-accent);
	padding: 0 0 12px;
	border-radius: 0;
	border-bottom: 2px solid var(--snav-highlight);
	font-size: 1.1em;
}
.snav--soft .snav__root.is-current {
	box-shadow: none;
}
.snav--soft .snav__link {
	margin-bottom: 2px;
	border-radius: var(--snav-radius);
}
.snav--soft .snav__list:not(.snav__list--secondary) .snav__item.is-current > .snav__link {
	background: var(--snav-accent);
	color: var(--snav-accent-text);
}
.snav--soft .snav__list--secondary .snav__item.is-current > .snav__link {
	background: var(--snav-tint);
}

/* Preset: minimal. No card, thin line, coloured marker. */
.snav--minimal {
	padding: 0;
	background: none;
	border-radius: 0;
}
.snav--minimal .snav__heading {
	font-size: 1.25em;
}
.snav--minimal .snav__root {
	background: none;
	color: var(--snav-accent);
	padding: 0 0 4px;
	border-radius: 0;
}
.snav--minimal .snav__root.is-current {
	box-shadow: none;
}
.snav--minimal .snav__list {
	border-left: 1px solid color-mix(in srgb, var(--snav-text) 20%, transparent);
}
.snav--minimal .snav__link {
	margin-left: -1px;
	border-left: 2px solid transparent;
	font-weight: 500;
}
.snav--minimal .snav__link:hover {
	background: none;
	border-left-color: color-mix(in srgb, var(--snav-accent) 40%, transparent);
}
.snav--minimal .snav__item.is-current > .snav__link {
	border-left-color: var(--snav-highlight);
	font-weight: 700;
}
@media (max-width: 782px) {
	.snav--minimal.snav--collapsible.snav--js {
		padding: 14px 16px;
		border: 1px solid color-mix(in srgb, var(--snav-text) 20%, transparent);
		border-radius: var(--snav-radius);
	}
}

/* Editor notes */
.snav-note {
	margin: 0 0 8px;
	padding: 8px 12px;
	background: #f0f0f1;
	border-left: 4px solid #72aee6;
	font-size: 13px;
	color: #1d2327;
}

@media (prefers-reduced-motion: reduce) {
	.snav .snav__link,
	.snav .snav__toggle-icon {
		transition: none;
	}
}