:root {
	--ink: #0878BE;
	--muted: #0878BE;
	--paper: #fffdf8;
	--surface: #ffffff;
	--teal: #0878BE;
	--teal-dark: #0878BE;
	--coral: #e87961;
	--line: #dce7e2;
	--shadow: 0 20px 45px rgba(37, 50, 56, 0.12);
}

* {
	box-sizing: border-box;
}

body {
	min-height: 100vh;
	margin: 0;
	color: var(--ink);
	background-color: var(--paper);
	font-family: "Trebuchet MS", "Segoe UI", sans-serif;
	line-height: 1.65;
}

header,
main {
	width: min(100% - 2rem, 980px);
	margin-inline: auto;
}

header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 2rem;
	padding: 2.25rem 0 1.5rem;
}

.nav-controls {
	display: flex;
	align-items: center;
	gap: 1rem;
}

.brand {
	display: flex;
	align-items: center;
	gap: 0.8rem;
	color: inherit;
	text-decoration: none;
}

.brand-logo {
	width: 58px;
	height: 58px;
	flex: 0 0 auto;
	border-radius: 10px;
	box-shadow: 0 6px 16px rgba(23, 107, 104, 0.16);
}

h1,
h2,
h3 {
	line-height: 1.15;
}

h1 {
	max-width: 13ch;
	margin: 0;
	color: var(--teal-dark);
	font-family: Georgia, serif;
	font-size: clamp(1.65rem, 4vw, 2.5rem);
}

h2 {
	margin-top: 0;
	color: var(--teal-dark);
	font-family: Georgia, serif;
	font-size: clamp(1.45rem, 3vw, 2rem);
}

h3 {
	color: var(--teal);
}

nav {
	display: flex;
	flex-wrap: wrap;
	justify-content: flex-end;
	gap: 0.45rem;
}

.language-switch {
	display: inline-flex;
	align-items: center;
	gap: 0.2rem;
	padding: 0.2rem;
	border: 1px solid var(--line);
	border-radius: 999px;
	background: rgba(255, 255, 255, 0.8);
}

.lang-btn {
	border: 0;
	border-radius: 999px;
	padding: 0.45rem 0.7rem;
	background: transparent;
	color: var(--ink);
	font-size: 0.8rem;
	font-weight: 700;
	cursor: pointer;
	transition: background-color 160ms ease, color 160ms ease, transform 160ms ease;
}

.lang-btn.is-active {
	background: var(--teal);
	color: #fff;
}

.lang-btn:focus-visible {
	outline: 2px solid var(--teal);
	outline-offset: 2px;
}

nav a {
	padding: 0.5rem 0.8rem;
	border-radius: 999px;
	color: var(--ink);
	font-size: 0.9rem;
	font-weight: 700;
	text-decoration: none;
	transition: background-color 160ms ease, color 160ms ease, transform 160ms ease;
}

nav a:hover,
nav a:focus-visible,
nav a[aria-current="page"] {
	color: #fff;
	background: var(--teal);
	transform: translateY(-1px);
}

main {
	margin-bottom: 3rem;
}

main.card,
main:not(.card) section {
	border: 1px solid var(--line);
	border-radius: 14px;
	background: rgba(255, 255, 255, 0.94);
	box-shadow: var(--shadow);
}

main.card {
	padding: clamp(1.5rem, 5vw, 4rem);
}

main.card p {
	max-width: 38rem;
	margin-bottom: 0;
	color: var(--muted);
	font-size: 1.1rem;
}

main:not(.card) {
	display: grid;
	gap: 1.25rem;
}

main:not(.card) section {
	padding: clamp(1.25rem, 4vw, 2rem);
	overflow-wrap: anywhere;
}

main:not(.card) section h2 {
	margin-bottom: 0.75rem;
}

ul {
	padding-left: 1.25rem;
}

li::marker {
	color: var(--ink);
}

strong {
	color: var(--teal-dark);
}

@media (max-width: 680px) {
	main {
		width: calc(100% - 2rem);
	}

	header {
		display: block;
		padding-top: 1.5rem;
	}

	header h1 {
		margin-bottom: 1rem;
	}

	.nav-controls {
		flex-direction: column;
		align-items: flex-start;
	}

	nav {
		justify-content: flex-start;
	}

	main.card p {
		margin-inline: auto;
	}
}