/* Site navigation bar */

#banner {
	padding-top: calc(100px + 2.5em);
	background-color: transparent !important;
	background-image: none !important;
}

#site-nav {
	display: flex;
	align-items: center;
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	z-index: 10000;
	height: 100px;
	padding: 0 1.5rem;
	overflow: visible;

	/* Glass palette — matches site accent (#4c5c96 / #5b6ba6) and base (#2e3141) */
	--nav-glass-shine: rgba(160, 178, 230, 0.35);
	--nav-glass-shine-soft: rgba(255, 255, 255, 0.18);
	--nav-glass-shadow: rgba(46, 49, 65, 0.4);
	--nav-glass-glow: rgba(91, 107, 166, 0.22);
}

#site-nav .site-nav-bar {
	display: flex;
	align-items: center;
	position: relative;
	gap: 1.5rem;
	height: 100px;
	max-width: 1400px;
	margin: 0 auto;
	padding: 0 1.5rem;
	overflow: visible;
	transition:
		height 0.3s ease,
		gap 0.3s ease,
		max-width 0.3s ease,
		padding 0.3s ease;
}

#site-nav.is-scrolled {
	background: transparent;
}

/* Liquid glass (macOS-style, borderless) */

.site-nav-glass-filter {
	position: absolute;
	width: 0;
	height: 0;
	overflow: hidden;
}

#site-nav .liquidGlass-effect,
#site-nav .liquidGlass-tint,
#site-nav .liquidGlass-shine {
	position: absolute;
	inset: 0;
	pointer-events: none;
	opacity: 0;
	transition: opacity 0.35s ease;
}

#site-nav .liquidGlass-effect {
	z-index: 0;
	backdrop-filter: blur(10px) saturate(150%);
	-webkit-backdrop-filter: blur(10px) saturate(150%);
	filter: url(#glass-distortion);
	overflow: hidden;
	isolation: isolate;
}

#site-nav .liquidGlass-tint {
	z-index: 1;
	background: linear-gradient(
		135deg,
		rgba(91, 107, 166, 0.58) 0%,
		rgba(76, 92, 150, 0.52) 45%,
		rgba(46, 49, 65, 0.48) 100%
	);
}

#site-nav .liquidGlass-shine {
	z-index: 2;
	overflow: hidden;
	box-shadow:
		inset 2px 2px 1px 0 var(--nav-glass-shine),
		inset -1px -1px 1px 1px var(--nav-glass-shine-soft);
}

#site-nav .site-nav-links-glass {
	position: relative;
	display: flex;
	align-items: center;
	margin: 0 0 0 auto;
	z-index: 1;
	border-radius: 2rem;
	/* visible so submenu panels can escape the bar */
	overflow: visible;
	transition:
		padding 0.35s cubic-bezier(0.175, 0.885, 0.32, 2.2),
		box-shadow 0.35s ease;
}

/* Clip glass layers to the pill shape without clipping dropdowns */
#site-nav .site-nav-links-glass .liquidGlass-effect,
#site-nav .site-nav-links-glass .liquidGlass-tint,
#site-nav .site-nav-links-glass .liquidGlass-shine {
	border-radius: 2rem;
	overflow: hidden;
}

#site-nav .site-nav-panel-glass {
	position: relative;
	overflow: hidden;
	border-radius: 1.25rem;
}

/* Mobile dropdown: slightly foggier than the desktop bar glass */
#site-nav .site-nav-panel-glass .liquidGlass-effect {
	backdrop-filter: blur(14px) saturate(155%);
	-webkit-backdrop-filter: blur(14px) saturate(155%);
}

#site-nav .site-nav-panel-glass .liquidGlass-tint {
	background: linear-gradient(
		135deg,
		rgba(91, 107, 166, 0.64) 0%,
		rgba(76, 92, 150, 0.6) 45%,
		rgba(46, 49, 65, 0.58) 100%
	);
}

#site-nav.is-scrolled.is-menu-open {
	height: auto;
	overflow: visible;
}

#site-nav .site-nav-logo {
	flex-shrink: 0;
	display: flex;
	align-items: center;
	border: 0;
	line-height: 0;
	position: relative;
	z-index: 1;
}

#site-nav .site-nav-logo img {
	display: block;
	height: 52px;
	width: auto;
}


/* Wide screens: horizontal sticky nav (laptops incl. MDPI) */
@media screen and (min-width: 1021px) {
	body.is-home #site-nav {
		height: 120px;
	}

	body.is-home #site-nav .site-nav-bar {
		height: 120px;
	}

	body.is-home #site-nav .site-nav-logo img {
		height: 91px;
	}

	body.is-home #site-nav ~ #banner {
		padding-top: calc(120px + 2.5em);
	}

	#site-nav .site-nav-links {
		display: flex;
	}

	#site-nav .site-nav-toggle {
		display: none;
	}

	#site-nav .site-nav-panel {
		display: none !important;
	}

	#site-nav.is-scrolled .site-nav-links-glass .liquidGlass-effect,
	#site-nav.is-scrolled .site-nav-links-glass .liquidGlass-tint,
	#site-nav.is-scrolled .site-nav-links-glass .liquidGlass-shine {
		opacity: 1;
	}

	#site-nav.is-scrolled .site-nav-links-glass {
		padding: 0.35rem 0.55rem;
		box-shadow:
			0 6px 6px var(--nav-glass-shadow),
			0 0 20px var(--nav-glass-glow);
	}

	#site-nav.is-scrolled.is-menu-open {
		display: block;
	}

	#site-nav.is-scrolled .site-nav-toggle {
		width: 2rem;
		height: 36px;
	}
}

@media screen and (min-width: 1021px) and (max-width: 1440px) {
	#site-nav .site-nav-links a,
	#site-nav .site-nav-sub-toggle {
		font-size: 0.68em;
		padding: 0.35em 0.55em;
	}

	#site-nav .site-nav-sub a {
		font-size: 0.65em;
	}
}

#site-nav .site-nav-links {
	display: flex;
	flex-wrap: nowrap;
	align-items: center;
	justify-content: flex-end;
	gap: 0.15rem 0.5rem;
	list-style: none;
	margin: 0;
	padding: 0;
	flex: none;
	position: relative;
	z-index: 3;
}

#site-nav .site-nav-links a {
	display: block;
	padding: 0.4em 0.65em;
	border: 0;
	border-radius: 5px;
	font-family: Raleway, Helvetica, sans-serif;
	font-size: 0.72em;
	font-weight: 700;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	text-decoration: none;
	color: rgba(255, 255, 255, 0.92);
	transition: color 0.3s ease, background-color 0.2s ease;
	white-space: nowrap;
}

#site-nav .site-nav-links a:hover {
	background-color: rgba(255, 255, 255, 0.1);
}

#site-nav .site-nav-has-sub {
	position: relative;
}

#site-nav .site-nav-sub-toggle {
	-moz-appearance: none;
	-webkit-appearance: none;
	appearance: none;
	display: inline-flex;
	align-items: center;
	gap: 0.35em;
	height: auto;
	line-height: 1.2;
	padding: 0.4em 0.65em;
	border: 0;
	border-radius: 5px;
	background: transparent;
	box-shadow: none;
	cursor: pointer;
	font-family: Raleway, Helvetica, sans-serif;
	font-size: 0.72em;
	font-weight: 700;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	color: rgba(255, 255, 255, 0.92) !important;
	transition: color 0.3s ease, background-color 0.2s ease;
	white-space: nowrap;
}

#site-nav .site-nav-sub-toggle:hover,
#site-nav .site-nav-has-sub.is-open > .site-nav-sub-toggle {
	background-color: rgba(255, 255, 255, 0.1);
	box-shadow: none;
}

#site-nav .site-nav-sub-chevron {
	display: inline-block;
	width: 0;
	height: 0;
	border-left: 0.28em solid transparent;
	border-right: 0.28em solid transparent;
	border-top: 0.35em solid currentColor;
	opacity: 0.75;
	transition: transform 0.2s ease;
}

#site-nav .site-nav-has-sub.is-open > .site-nav-sub-toggle .site-nav-sub-chevron {
	transform: rotate(180deg);
}

#site-nav .site-nav-sub {
	display: none;
	position: absolute;
	top: 100%;
	left: 50%;
	transform: translateX(-50%);
	min-width: 11rem;
	margin: 0;
	padding: 0.5rem 0.4rem 0.4rem;
	list-style: none;
	border-radius: 0.75rem;
	background: rgba(46, 49, 65, 0.96);
	box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
	z-index: 10002;
}

/* Invisible hover bridge so the pointer can reach the panel */
#site-nav .site-nav-sub::before {
	content: "";
	position: absolute;
	left: 0;
	right: 0;
	top: -0.75rem;
	height: 0.75rem;
}

#site-nav .site-nav-links .site-nav-has-sub.is-open > .site-nav-sub,
#site-nav .site-nav-links .site-nav-has-sub:hover > .site-nav-sub,
#site-nav .site-nav-links .site-nav-has-sub:focus-within > .site-nav-sub {
	display: block;
}

#site-nav .site-nav-sub a {
	display: block;
	padding: 0.55em 0.75em;
	font-size: 0.68em;
	white-space: nowrap;
}

#site-nav.is-scrolled .site-nav-links a {
	color: rgba(255, 255, 255, 0.95);
}

#site-nav.is-scrolled .site-nav-links a:hover {
	background-color: rgba(255, 255, 255, 0.14);
	box-shadow: inset -2px -2px 2px rgba(0, 0, 0, 0.15);
}

#site-nav.is-scrolled .site-nav-sub-toggle {
	color: rgba(255, 255, 255, 0.95);
}

#site-nav.is-scrolled .site-nav-sub-toggle:hover,
#site-nav.is-scrolled .site-nav-has-sub.is-open > .site-nav-sub-toggle {
	background-color: rgba(255, 255, 255, 0.14);
	box-shadow: inset -2px -2px 2px rgba(0, 0, 0, 0.15);
}

#site-nav.is-scrolled .site-nav-sub {
	background: rgba(46, 49, 65, 0.98);
}

#site-nav .site-nav-toggle {
	display: none;
	flex-shrink: 0;
	align-items: center;
	justify-content: center;
	flex-direction: column;
	gap: 5px;
	width: 2.75rem;
	height: 2.75rem;
	margin-left: auto;
	padding: 0;
	border: 0;
	border-radius: 5px;
	background: transparent;
	cursor: pointer;
	transition: background-color 0.2s ease;
	position: relative;
	z-index: 1;
}

#site-nav .site-nav-toggle-bar {
	display: block;
	width: 1.35rem;
	height: 2px;
	background: rgba(255, 255, 255, 0.92);
	border-radius: 1px;
	transition: background-color 0.3s ease, transform 0.2s ease, opacity 0.2s ease;
}

#site-nav.is-scrolled .site-nav-toggle-bar {
	background: rgba(255, 255, 255, 0.92);
}

#site-nav.is-menu-open .site-nav-toggle-bar:nth-child(1) {
	transform: translateY(7px) rotate(45deg);
}

#site-nav.is-menu-open .site-nav-toggle-bar:nth-child(2) {
	opacity: 0;
}

#site-nav.is-menu-open .site-nav-toggle-bar:nth-child(3) {
	transform: translateY(-7px) rotate(-45deg);
}

#site-nav .site-nav-panel {
	display: none;
	position: fixed;
	left: 50%;
	right: auto;
	transform: translateX(-50%);
	width: max-content;
	max-width: calc(100vw - 2rem);
	margin: 0.5rem 0 0;
	padding: 0;
	background: transparent;
	border: 0;
	box-shadow: none;
	z-index: 10001;
	overflow: visible;
	-webkit-overflow-scrolling: touch;
}

#site-nav.is-scrolled .site-nav-panel-glass,
#site-nav.is-menu-open .site-nav-panel-glass {
	padding: 0.75rem 1rem 1rem;
	box-shadow:
		0 8px 32px var(--nav-glass-shadow),
		0 0 20px var(--nav-glass-glow);
}

#site-nav.is-menu-open .site-nav-panel-glass .liquidGlass-effect,
#site-nav.is-menu-open .site-nav-panel-glass .liquidGlass-tint,
#site-nav.is-menu-open .site-nav-panel-glass .liquidGlass-shine,
#site-nav.is-scrolled.is-menu-open .site-nav-panel-glass .liquidGlass-effect,
#site-nav.is-scrolled.is-menu-open .site-nav-panel-glass .liquidGlass-tint,
#site-nav.is-scrolled.is-menu-open .site-nav-panel-glass .liquidGlass-shine {
	opacity: 1;
}

#site-nav .site-nav-panel-links {
	position: relative;
	z-index: 3;
}

#site-nav.is-menu-open {
	overflow: visible;
}

#site-nav.is-menu-open .site-nav-panel {
	display: block;
}

#site-nav .site-nav-panel-links {
	list-style: none;
	margin: 0;
	padding: 0;
}

#site-nav .site-nav-panel-links li {
	padding: 0;
}

#site-nav .site-nav-panel-links a {
	display: block;
	padding: 0.75em 1em;
	border: 0;
	border-radius: 5px;
	font-family: Raleway, Helvetica, sans-serif;
	font-size: 0.85em;
	font-weight: 700;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	text-decoration: none;
	color: rgba(255, 255, 255, 0.95);
	white-space: nowrap;
	text-align: center;
	transition: background-color 0.2s ease;
}

#site-nav .site-nav-panel-links a:hover {
	background-color: rgba(255, 255, 255, 0.14);
	box-shadow: inset -2px -2px 2px rgba(0, 0, 0, 0.15);
}

#site-nav .site-nav-panel-links .site-nav-has-sub {
	position: static;
}

#site-nav .site-nav-panel-links .site-nav-sub-toggle {
	display: flex;
	width: 100%;
	justify-content: flex-end;
	height: auto;
	line-height: 1.2;
	padding: 0.75em 1em;
	font-size: 0.85em;
	box-shadow: none;
}

#site-nav .site-nav-panel-links .site-nav-sub {
	position: static;
	transform: none;
	min-width: 0;
	margin: 0 0 0.35rem;
	padding: 0 0.5rem 0.35rem;
	background: transparent;
	box-shadow: none;
	border-radius: 0;
}

#site-nav .site-nav-panel-links .site-nav-has-sub > .site-nav-sub {
	display: none;
}

#site-nav .site-nav-panel-links .site-nav-has-sub.is-open > .site-nav-sub {
	display: block;
}

#site-nav .site-nav-panel-links .site-nav-sub a {
	padding: 0.55em 1em;
	font-size: 0.78em;
	opacity: 0.9;
}

@media screen and (max-width: 1020px) {
	#banner {
		padding-top: calc(80px + 2em);
	}

	#site-nav {
		height: auto;
		min-height: 80px;
		padding: 0 1rem;
		overflow: visible;
	}

	#site-nav .site-nav-bar {
		height: 80px;
		padding: 0 1rem;
		gap: 0;
		justify-content: space-between;
		width: 100%;
	}

	#site-nav .site-nav-links-glass {
		display: none !important;
		position: absolute;
		width: 0;
		height: 0;
		overflow: hidden;
		visibility: hidden;
		pointer-events: none;
		margin: 0;
		padding: 0;
		box-shadow: none;
	}

	#site-nav .site-nav-toggle {
		display: flex;
		margin-left: 0;
		flex-shrink: 0;
	}

	#site-nav .site-nav-panel {
		top: 80px;
		left: auto;
		right: 1rem;
		transform: none;
		margin: 0.35rem 0 0;
		max-height: calc(100vh - 80px - 1rem);
	}

	#site-nav .site-nav-panel-links a {
		text-align: right;
	}

	#site-nav .site-nav-panel-links .site-nav-sub-toggle {
		justify-content: flex-end;
	}

	#site-nav .site-nav-panel-links .site-nav-sub a {
		text-align: right;
	}

	#site-nav .site-nav-panel-glass {
		max-height: calc(100vh - 80px - 1rem);
		overflow-y: auto;
		-webkit-overflow-scrolling: touch;
	}

	#site-nav .site-nav-logo {
		flex-shrink: 0;
		margin-right: 0;
	}

	#site-nav.is-scrolled .site-nav-bar,
	#site-nav .site-nav-bar {
		max-width: none;
	}

	#site-nav .site-nav-logo img {
		height: 42px;
	}

	#site-nav.is-scrolled .site-nav-toggle {
		width: 2.75rem;
		height: 2.75rem;
	}
}

@media screen and (max-width: 736px) {
	#banner {
		padding-top: calc(72px + 1.5em);
	}

	#site-nav {
		min-height: 72px;
		padding: 0 0.75rem;
	}

	#site-nav .site-nav-bar {
		height: 72px;
		padding: 0 0.75rem;
	}

	#site-nav .site-nav-panel {
		top: 72px;
		right: 0.75rem;
		max-height: calc(100vh - 72px - 1rem);
	}

	#site-nav .site-nav-panel-glass {
		max-height: calc(100vh - 72px - 1rem);
	}

	#site-nav .site-nav-logo img {
		height: 38px;
	}
}