/* Modern blue-tone theme — replaces norm.css */

:root {
	--blue: #2563eb;
	--blue-dark: #1d4ed8;
	--navy: #1e3a5f;
	--navy-darker: #16293f;
	--blue-light: #eff6ff;
	--blue-border: #bfdbfe;
	--text: #1f2937;
	--text-muted: #6b7280;
	--bg: #f8fafc;
	--white: #ffffff;
}

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

html {
	scroll-behavior: smooth;
}

body {
	font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
	line-height: 1.6;
	color: var(--text);
	background-color: var(--bg);
	min-height: 100vh;
	display: flex;
	flex-direction: column;
}

/* Layout */

.container {
	width: 100%;
	max-width: 960px;
	margin: 0 auto;
	padding: 0 1.25rem;
}

main.container {
	flex: 1;
	padding-top: 2rem;
	padding-bottom: 3rem;
}

/* Classic top navigation */

.site-header {
	background-color: var(--navy);
	color: var(--white);
	box-shadow: 0 2px 6px rgba(15, 30, 50, 0.25);
}

.site-header .container {
	display: flex;
	align-items: center;
	justify-content: space-between;
	flex-wrap: wrap;
	gap: 0.5rem;
	padding-top: 0.75rem;
	padding-bottom: 0.75rem;
}

.site-title {
	color: var(--white);
	font-size: 1.25rem;
	font-weight: 700;
	text-decoration: none;
	letter-spacing: 0.02em;
}

.site-title:hover {
	color: #cfe1f7;
}

.site-nav {
	display: flex;
	gap: 0.25rem;
	flex-wrap: wrap;
}

.site-nav a {
	color: #d8e4f3;
	text-decoration: none;
	padding: 0.4rem 0.9rem;
	border-radius: 6px;
	transition: background-color 0.15s ease, color 0.15s ease;
}

.site-nav a:hover {
	background-color: var(--navy-darker);
	color: var(--white);
}

.site-nav a.active {
	background-color: var(--blue);
	color: var(--white);
}

/* Language toggle: pushed to the right edge, visually apart from nav items */

.site-nav a.lang-toggle {
	margin-left: auto;
	color: #9ec3ee;
	font-weight: 600;
	border: 1px solid rgba(255, 255, 255, 0.35);
	border-radius: 999px;
	padding: 0.25rem 0.85rem;
}

.site-nav a.lang-toggle:hover {
	background-color: var(--blue);
	border-color: var(--blue);
	color: var(--white);
}

/* Typography */

h1, h2, h3 {
	color: var(--navy);
	line-height: 1.25;
}

h1 {
	font-size: 2rem;
	margin-bottom: 1rem;
}

h2 {
	font-size: 1.4rem;
	margin: 1.75rem 0 0.75rem;
	padding-bottom: 0.3rem;
	border-bottom: 2px solid var(--blue-border);
}

h3 {
	font-size: 1.15rem;
	margin: 1.25rem 0 0.5rem;
}

h2 a {
	color: inherit;
	text-decoration: none;
}

h2 a:hover {
	color: var(--blue);
	text-decoration: underline;
}

p {
	margin-bottom: 1rem;
}

a {
	color: var(--blue);
}

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

/* Lists */

dl, ul, ol {
	margin: 0 0 1rem 1.5rem;
}

dt {
	font-weight: 600;
	color: var(--navy);
}

dd {
	margin-left: 1.5rem;
	margin-bottom: 0.25rem;
}

/* Hero / intro block */

.hero {
	background: linear-gradient(135deg, var(--navy), var(--blue));
	color: var(--white);
	border-radius: 10px;
	padding: 2.5rem 2rem;
	margin-bottom: 2rem;
}

.hero h1 {
	color: var(--white);
	margin-bottom: 0.5rem;
}

.hero p {
	color: #dbeafe;
	margin-bottom: 0;
}

/* Cards (accueil / projets) */

.cards {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
	gap: 1.25rem;
}

.card {
	background: var(--white);
	border: 1px solid var(--blue-border);
	border-radius: 10px;
	padding: 1.5rem;
	text-decoration: none;
	display: block;
	transition: box-shadow 0.15s ease, transform 0.15s ease;
}

.card:hover {
	box-shadow: 0 6px 18px rgba(37, 99, 235, 0.18);
	transform: translateY(-2px);
}

.card h2 {
	border-bottom: none;
	margin: 0 0 0.5rem;
	font-size: 1.25rem;
}

.card h3 {
	border-bottom: none;
	margin: 0 0 0.5rem;
	font-size: 1.1rem;
}

.card p {
	color: var(--text-muted);
	margin: 0;
}

/* Content blocks */

.content-box {
	background: var(--white);
	border: 1px solid var(--blue-border);
	border-radius: 10px;
	padding: 1.75rem 2rem;
	margin-bottom: 2rem;
}

.page-title {
	background: var(--blue-light);
	border-bottom: 3px solid var(--blue);
	border-radius: 10px 10px 0 0;
	padding: 1.25rem 2rem 1rem;
	margin-bottom: 0;
}

.page-title h1 {
	margin-bottom: 0;
	font-size: 1.5rem;
}

/* Downloads */

.downloads li {
	margin-bottom: 0.35rem;
}

code {
	font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
	background: var(--blue-light);
	border: 1px solid var(--blue-border);
	border-radius: 4px;
	padding: 0.1rem 0.4rem;
	font-size: 0.9em;
	color: var(--navy);
}

pre {
	background: var(--navy);
	color: #e2e8f0;
	border-radius: 8px;
	padding: 1rem 1.25rem;
	overflow-x: auto;
	margin-bottom: 1rem;
}

pre code {
	background: none;
	border: none;
	color: inherit;
	padding: 0;
}

/* Images */

figure {
	margin: 0 0 1.5rem;
	text-align: center;
}

figure img {
	max-width: 100%;
	height: auto;
	border-radius: 8px;
	border: 1px solid var(--blue-border);
	box-shadow: 0 3px 12px rgba(30, 58, 95, 0.12);
}

/* Footer */

.site-footer {
	background-color: var(--navy);
	color: #c9d7e8;
	text-align: center;
	padding: 1.25rem 0;
	margin-top: auto;
}

.site-footer a {
	color: #9ec3ee;
	text-decoration: none;
}

.site-footer a:hover {
	color: var(--white);
	text-decoration: underline;
}

/* Responsive */

@media (max-width: 640px) {
	.site-header .container {
		flex-direction: column;
		align-items: flex-start;
	}

	h1 {
		font-size: 1.6rem;
	}

	.content-box {
		padding: 1.25rem 1.25rem;
	}
}