/* ===========================
   RESET
=========================== */
* {
	margin: 0;
	padding: 0;
	box-sizing: border-box;
	font-family: Arial, Helvetica, sans-serif;
}

:root {
	--blue: #0051A2;
	--blue-dark: #003a75;
}

body {
	background: linear-gradient(180deg, var(--blue-dark), #001b38 45%, #00142b);
	padding: 30px 15px;
	min-height: 100vh;
}

/* ===========================
   CONTAINER / HEADER
=========================== */
.container {
	max-width: 1000px;
	margin: auto;
	background: white;
	border-radius: 15px;
	overflow: hidden;
	box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.header {
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding: 20px 30px;
	border-bottom: 1px solid #eeeeee;
	flex-wrap: wrap;
	gap: 16px;
}

.btn {
	padding: 12px 24px;
	border: none;
	border-radius: 10px;
	background: #f5f5f5;
	cursor: pointer;
	font-size: 16px;
	transition: 0.3s;
}

.btn:hover {
	background: var(--blue);
	color: white;
}

.btn {
	text-decoration: none;
	color: #333;
	display: inline-block;
}

/* ===========================
   NAV MENU
=========================== */
.menu ul {
	list-style: none;
	display: flex;
	gap: 26px;
	align-items: center;
}

.menu a {
	text-decoration: none;
	color: #333;
	font-size: 15px;
	font-weight: 600;
	transition: 0.25s;
}

.menu a:hover {
	color: var(--blue);
}

.menu a.current {
	color: var(--blue);
}

/* ===========================
   CITY CARDS
=========================== */
.city-card {
	background-size: cover;
	background-position: center;
	padding: 40px 30px 50px;
	position: relative;
}

.lagos {
	background-image: linear-gradient(to top, rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.15)), url("lagos.webp");
}

.abuja {
	background-image: linear-gradient(to top, rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.15)), url("abuja.jpeg");
}

.delta {
	background-image: linear-gradient(to top, rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.15)), url("Delta.jpeg");
}

.port {
	background-image: linear-gradient(to top, rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.15)), url("Uniport.jpeg");
}

.title {
	font-size: 44px;
	font-weight: 600;
	line-height: 1.15;
	color: white;
}

.address {
	margin-top: 18px;
	color: #e2e2e2;
	font-size: 18px;
	display: flex;
	align-items: center;
	gap: 8px;
}

.address i {
	color: var(--blue);
}

/* ===========================
   FILTER DROPDOWN
=========================== */
.filter {
	position: relative;
	margin-top: 25px;
	display: inline-block;
}

.bttn {
	background: white;
	color: #333;
	border: none;
	padding: 12px 20px;
	font-size: 15px;
	font-weight: 600;
	border-radius: 10px;
	cursor: pointer;
	display: flex;
	align-items: center;
	gap: 10px;
	transition: 0.25s;
}

.bttn:hover {
	background: var(--blue);
	color: white;
}

.bttn i {
	font-size: 12px;
	transition: transform 0.25s;
}

.filter-toggle[aria-expanded="true"] i {
	transform: rotate(180deg);
}

.filter-menu {
	position: absolute;
	top: calc(100% + 8px);
	left: 0;
	min-width: 180px;
	background: white;
	border-radius: 10px;
	overflow: hidden;
	list-style: none;
	box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
	z-index: 5;
}

.filter-menu li a {
	display: block;
	padding: 12px 20px;
	color: #333;
	text-decoration: none;
	font-size: 15px;
	transition: 0.2s;
}

.filter-menu li a:hover {
	background: #eaf2fb;
	color: var(--blue);
}

.filter-menu li + li a {
	border-top: 1px solid #f0f0f0;
}

/* ===========================
   RESPONSIVE
=========================== */
@media (max-width: 600px) {
	.header {
		padding: 16px 20px;
	}

	.title {
		font-size: 32px;
	}

	.address {
		font-size: 15px;
	}

	.city-card {
		padding: 30px 20px 40px;
	}

	.menu ul {
		flex-wrap: wrap;
		gap: 14px;
		row-gap: 8px;
	}
}