:root {
	--navy: #0f172a;
	--navy-light: #1e293b;
	--accent: #14b8a6;
	--accent-dark: #0d9488;
	--bg: #f8fafc;
	--surface: #ffffff;
	--text: #0f172a;
	--muted: #64748b;
	--border: #e2e8f0;
}

* {
	box-sizing: border-box;
	margin: 0;
	padding: 0;
}

body {
	font-family: "Inter", sans-serif;
	background-color: var(--bg);
	color: var(--text);
	line-height: 1.7;
}

a {
	color: var(--accent);
	text-decoration: none;
}

.container {
	max-width: 1100px;
	margin: 0 auto;
	padding: 0 1.25rem;
}

/* Header */
header {
	background-color: var(--navy);
	color: #ffffff;
}

header .container {
	display: flex;
	justify-content: space-between;
	align-items: center;
	height: 72px;
}

.logo {
	font-weight: 600;
	letter-spacing: -0.02em;
}

nav a {
	color: #cbd5f5;
	margin-left: 1.5rem;
	font-weight: 500;
}

nav a:hover {
	color: #ffffff;
}

/* Main */
main {
	padding: 4rem 0;
}

h1,
h2,
h3 {
	letter-spacing: -0.02em;
}

h1 {
	font-size: 2.4rem;
	margin-bottom: 1.25rem;
}

h2 {
	font-size: 1.9rem;
	margin-bottom: 1.1rem;
}

p {
	max-width: 720px;
	color: var(--muted);
}

/* Footer */
footer {
	background-color: var(--navy-light);
	color: #cbd5f5;
	padding: 2.25rem 0;
	text-align: center;
	font-size: 0.9rem;
	margin-top: 5rem;
}

/* Cards */
.card-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
	gap: 2rem;
}

.card {
	background-color: var(--surface);
	border: 1px solid var(--border);
	border-radius: 12px;
	padding: 2rem;
	display: flex;
	flex-direction: column;
	justify-content: space-between;
}

.card h3 {
	margin-bottom: 0.75rem;
}

.card-link {
	margin-top: 1.5rem;
	align-self: flex-start;
	font-weight: 500;
	color: var(--accent);
}

.card-link:hover {
	text-decoration: underline;
}

.card-link.muted {
	color: var(--muted);
	cursor: default;
	text-decoration: none;
}

/* -------------------- */
/* Mobile adjustments   */
/* -------------------- */
@media (max-width: 768px) {
	header .container {
		flex-direction: column;
		height: auto;
		padding: 1rem 0;
		gap: 0.75rem;
	}

	nav a {
		margin-left: 0;
		margin-right: 1rem;
	}

	main {
		padding: 3rem 0;
	}

	h1 {
		font-size: 2rem;
	}

	h2 {
		font-size: 1.6rem;
	}

	p {
		max-width: 100%;
	}
}

@media (max-width: 480px) {
	h1 {
		font-size: 1.75rem;
	}

	h2 {
		font-size: 1.4rem;
	}
}