.campus-header {
	position: sticky;
	top: 0;
	z-index: 1000;
	padding: 18px 0;
	border-bottom: 1px solid rgba(255, 255, 255, .16);
	background:
		linear-gradient(100deg, rgba(8, 26, 52, .98) 0%, rgba(14, 44, 84, .94) 48%, rgba(20, 166, 160, .58) 100%),
		url('https://images.unsplash.com/photo-1523240795612-9a054b0db644?auto=format&fit=crop&w=2200&q=85') center/cover;
	backdrop-filter: blur(14px);
}

.campus-header-inner {
	box-sizing: border-box;
	width: min(1680px, calc(100% - 48px)) !important;
	max-width: none !important;
	margin: 0 auto;
	padding: 0;
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 14px;
}

.campus-brand {
	display: flex;
	align-items: center;
	gap: 12px;
	color: #fff;
	text-decoration: none;
}

.campus-brand-mark {
	display: grid;
	width: 42px;
	height: 42px;
	place-items: center;
	color: #081A34;
	background: #5EE6D6;
	clip-path: polygon(50% 0, 100% 25%, 100% 75%, 50% 100%, 0 75%, 0 25%);
	font-family: 'Poppins', sans-serif;
	font-size: 17px;
	font-weight: 900;
}

.campus-brand strong {
	display: block;
	font-family: 'Poppins', sans-serif;
	font-size: 17px;
	line-height: 1.1;
}

.campus-brand span {
	display: block;
	margin-top: 3px;
	color: rgba(255,255,255,.72);
	font-size: 11px;
	letter-spacing: .12em;
}

.campus-nav {
	display: flex;
	flex: 1 1 auto;
	min-width: 0;
	align-items: center;
	justify-content: space-between;
	gap: 3px;
	padding: 6px;
	border: 1px solid rgba(255,255,255,.13);
	border-radius: 999px;
	background: rgba(4, 18, 39, .28);
	box-shadow: inset 0 1px 0 rgba(255,255,255,.08);
}

.campus-nav a,
.campus-nav-menu > summary {
	display: inline-flex;
	align-items: center;
	min-height: 44px;
	gap: 8px;
	padding: 0 12px;
	border-radius: 999px;
	color: rgba(255,255,255,.78);
	font-family: 'Poppins', sans-serif;
	font-size: 13px;
	font-weight: 800;
	text-decoration: none;
	white-space: nowrap;
	cursor: pointer;
	transition: color .2s ease, background .2s ease, transform .2s ease;
}

.campus-nav a:hover,
.campus-nav-menu > summary:hover,
.campus-nav-menu[open] > summary {
	color: #fff;
	background: rgba(255,255,255,.1);
	transform: translateY(-1px);
}

.campus-nav a[aria-current="page"] {
	color: #081A34;
	background: #5EE6D6;
	box-shadow: 0 5px 14px rgba(94,230,214,.2);
}

.campus-nav-menu {
	position: relative;
}

.campus-nav-menu summary {
	list-style: none;
}

.campus-nav-menu summary::-webkit-details-marker {
	display: none;
}

.campus-nav-menu summary::after {
	content: "";
	width: 7px;
	height: 7px;
	border-right: 2px solid currentColor;
	border-bottom: 2px solid currentColor;
	opacity: .9;
	transform: translateY(-2px) rotate(45deg);
	transition: transform .2s ease, opacity .2s ease;
}

.campus-nav-menu[open] summary::after {
	opacity: 1;
	transform: translateY(2px) rotate(225deg);
}

.campus-nav-dropdown {
	position: absolute;
	top: 100%;
	left: 0;
	z-index: 20;
	display: none;
	min-width: 210px;
	padding: 8px;
	border: 1px solid rgba(8, 26, 52, .12);
	border-radius: 14px;
	background: #fff;
	box-shadow: 0 18px 35px rgba(4, 18, 39, .2);
}

.campus-nav-menu:hover .campus-nav-dropdown,
.campus-nav-menu:focus-within .campus-nav-dropdown,
.campus-nav-menu[open] .campus-nav-dropdown {
	display: grid;
}

.campus-nav-dropdown-wide {
	grid-template-columns: repeat(3, minmax(160px, 1fr));
	min-width: 520px;
	max-height: calc(100vh - 120px);
	overflow-y: auto;
}

.campus-nav-dropdown a {
	display: flex;
	justify-content: space-between;
	gap: 16px;
	min-height: auto;
	padding: 10px 12px;
	border-radius: 8px;
	color: #24364a;
	font-size: 12px;
	font-weight: 700;
	text-decoration: none;
}

.campus-nav-dropdown a:hover {
	color: #081A34;
	background: #E4F8F3;
	transform: none;
}

.campus-nav-dropdown .campus-nav-featured {
	grid-column: 1 / -1;
	align-items: center;
	justify-content: center;
	margin-bottom: 6px;
	border: 1px solid rgba(94,230,214,.48);
	border-radius: 999px;
	color: #081A34;
	background: linear-gradient(135deg, #5EE6D6, #DFFBF7);
	box-shadow: 0 8px 18px rgba(8,26,52,.1);
	font-size: 13px;
	font-weight: 900;
}

.campus-nav-dropdown .campus-nav-featured:hover {
	color: #081A34;
	background: linear-gradient(135deg, #78F1E4, #fff);
}

.campus-header-action {
	display: inline-flex;
	align-items: center;
	min-height: 42px;
	padding: 0 16px;
	border: 1px solid rgba(94,230,214,.5);
	border-radius: 999px;
	color: #5EE6D6;
	font-size: 13px;
	font-weight: 700;
	text-decoration: none;
	white-space: nowrap;
	transition: color .2s ease, background .2s ease, transform .2s ease;
}

.campus-header-action:hover {
	color: #081A34;
	background: #5EE6D6;
	transform: translateY(-1px);
}

.campus-menu-toggle {
	display: none;
	flex-shrink: 0;
	width: 46px;
	height: 46px;
	padding: 0;
	border: 1px solid rgba(255,255,255,.2);
	border-radius: 14px;
	background: rgba(255,255,255,.06);
	cursor: pointer;
}

.campus-menu-toggle span {
	display: block;
	width: 20px;
	height: 2px;
	margin: 5px auto;
	border-radius: 2px;
	background: #fff;
}

@media (max-width: 1024px) {
	.campus-header {
		padding: 12px 0 14px;
	}

	.campus-header-inner {
		flex-wrap: wrap;
		gap: 12px;
	}

	.campus-brand {
		flex: 1 1 auto;
	}

	.campus-menu-toggle {
		display: inline-flex;
		flex-direction: column;
		justify-content: center;
		align-items: center;
	}

	.campus-nav {
		display: none;
		order: 3;
		flex: 0 0 100%;
		width: 100%;
		max-height: calc(100dvh - 88px);
		overflow-y: auto;
		padding: 10px;
		border-radius: 12px;
		background: rgba(4, 18, 39, .9);
		gap: 6px;
		flex-direction: column;
		align-items: stretch;
	}

	.campus-nav.is-open {
		display: flex;
	}

	.campus-nav a,
	.campus-nav-menu,
	.campus-nav-menu > summary {
		width: 100%;
		flex-basis: 100%;
		justify-content: space-between;
		min-height: 40px;
		padding: 0 12px;
		font-size: 12.5px;
	}

	.campus-nav-menu summary {
		display: flex;
		align-items: center;
	}

	.campus-nav-dropdown,
	.campus-nav-dropdown-wide {
		position: static;
		min-width: 0;
		max-height: none;
		margin: 4px 0 6px;
		grid-template-columns: 1fr;
		box-shadow: none;
	}

	.campus-header-action {
		display: none;
	}
}

@media (max-width: 767px) {
	.campus-header {
		padding: 12px 0;
	}

	.campus-header-inner {
		width: min(100% - 18px, 1680px) !important;
		align-items: center;
		gap: 10px;
	}

	.campus-brand {
		justify-content: flex-start;
		flex: 1 1 auto;
	}

	.campus-nav a,
	.campus-nav-menu > summary {
		min-height: 42px;
		padding: 0 12px;
		font-size: 12px;
	}
}

@media (prefers-reduced-motion: reduce) {
	.campus-nav a,
	.campus-nav-menu > summary,
	.campus-nav-menu summary::after,
	.campus-header-action {
		transition: none;
	}
}