/**
 * Shared dark sidebar: collapsible groups + nav links (app dashboard + API reference).
 * Requires variables.css tokens (--sidebar-bg, --accent, --transition, etc.).
 * ui-modernise: DM Sans, FA solid icons in markup.
 */

:root {
	--osinv-sidebar-icon-col: 1.125rem;
	--osinv-sidebar-row-pad-x: 0.5rem;
	--osinv-sidebar-row-pad-y: 0.4rem;
	--osinv-sidebar-group-pad-x: 0.5rem;
}

/* --- Collapsible groups (<details>) --- */
.osinv-nav-group {
	margin: 0;
	border-bottom: 1px solid color-mix(in srgb, var(--sidebar-text) 12%, transparent);
}

.osinv-nav-group:last-child {
	border-bottom: none;
}

.osinv-nav-group-summary {
	list-style: none;
	display: flex;
	align-items: center;
	gap: 0.5rem;
	cursor: pointer;
	padding: 0.5rem var(--osinv-sidebar-group-pad-x) 0.35rem;
	margin: 0;
	font-family: "DM Sans", sans-serif;
	font-size: 0.65625rem;
	font-weight: 700;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	color: color-mix(in srgb, var(--sidebar-text) 65%, transparent);
	transition: var(--transition);
	user-select: none;
}

.osinv-nav-group-summary::-webkit-details-marker {
	display: none;
}

.osinv-nav-group-icon {
	font-size: 0.8rem;
	flex: 0 0 var(--osinv-sidebar-icon-col);
	width: var(--osinv-sidebar-icon-col);
	text-align: center;
	color: var(--sidebar-active-text);
	opacity: 0.88;
}

.osinv-nav-group-title {
	flex: 1;
	min-width: 0;
}

.osinv-nav-group-chevron {
	margin-left: auto;
	font-size: 0.55rem;
	opacity: 0.45;
	transition: transform 0.2s ease;
	flex-shrink: 0;
}

.osinv-nav-group[open] > .osinv-nav-group-summary .osinv-nav-group-chevron {
	transform: rotate(180deg);
}

.osinv-nav-group-summary:hover {
	color: var(--primary-ghost);
}

.osinv-nav-group-links {
	display: flex;
	flex-direction: column;
	gap: 0.0625rem;
	padding: 0 0 0.3rem;
}

/* --- Row links (button in app, <a> in API docs) --- */
.osinv-nav-link {
	box-sizing: border-box;
	display: flex;
	align-items: center;
	gap: 0.5rem;
	width: 100%;
	max-width: 100%;
	padding: var(--osinv-sidebar-row-pad-y) var(--osinv-sidebar-row-pad-x)
		var(--osinv-sidebar-row-pad-y) var(--osinv-sidebar-group-pad-x);
	margin: 0;
	border: none;
	border-left: 3px solid transparent;
	border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
	font-family: "DM Sans", sans-serif;
	font-size: 0.8125rem;
	font-weight: 600;
	line-height: 1.3;
	color: var(--sidebar-text);
	background: transparent;
	opacity: 0.9;
	text-align: left;
	text-decoration: none;
	cursor: pointer;
	transition: var(--transition);
}

button.osinv-nav-link {
	font: inherit;
}

/* API reference: beat Bootstrap .nav-link color/padding (sidebar loads after bootstrap) */
a.osinv-nav-link.nav-link {
	color: var(--sidebar-text);
}

.osinv-nav-link:hover {
	color: var(--primary-ghost);
	background: var(--sidebar-hover);
	opacity: 1;
	border-left-color: var(--accent);
}

.osinv-nav-link:focus-visible {
	outline: none;
	border-left-color: var(--accent);
	box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 22%, transparent);
}

.osinv-nav-link.active {
	color: var(--sidebar-active-text);
	background: var(--sidebar-active);
	border-left-color: var(--accent);
	opacity: 1;
}

.osinv-nav-link-icon {
	flex: 0 0 var(--osinv-sidebar-icon-col);
	width: var(--osinv-sidebar-icon-col);
	text-align: center;
	font-size: 0.78rem;
	line-height: 1;
	opacity: 0.72;
	transition: var(--transition);
}

.osinv-nav-link > span {
	flex: 1;
	min-width: 0;
}

.osinv-nav-link.active .osinv-nav-link-icon {
	opacity: 1;
	color: var(--sidebar-active-text);
}

/* App: collapsed rail - hide group headers, show icon-only rows */
.dashboard-sidebar.collapsed .osinv-nav-group > .osinv-nav-group-summary {
	display: none;
}

.dashboard-sidebar.collapsed .osinv-nav-group {
	border-bottom: none;
}

.dashboard-sidebar.collapsed .osinv-nav-group-links {
	padding-left: 0;
	padding-bottom: 0.25rem;
}

.dashboard-sidebar.collapsed .osinv-nav-link {
	justify-content: center;
	padding-left: 0;
	padding-right: 0;
	margin-left: 0.35rem;
	margin-right: 0.35rem;
	width: auto;
	min-width: 2.25rem;
}

.dashboard-sidebar.collapsed .osinv-nav-link .nav-label {
	display: none !important;
}