* {
	box-sizing: border-box;
}

:root {
    --case-size: 5rem;
    --gap-size: 1rem;
}



body {
	display: flex;
	flex-direction: column;
	min-height: 100vh;
    margin: 0;
    background-attachment: fixed;
    padding: 0;
	gap: 0;
	font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

.site-header {
	background: rgba(255, 255, 255, 0.98);
	backdrop-filter: blur(10px);
	box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
	border-bottom: 2px solid #667eea;
	position: sticky;
	top: 0;
	z-index: 1000;
}

.header-content {
	max-width: 1200px;
	margin: 0 auto;
	padding: 2rem 1.5rem; /* réduit fortement la hauteur */
	display: flex;
	justify-content: space-between;
	align-items: center;
	gap: 1.5rem;
}

/* logo */
.logo-text h1 {
	margin: 0;
	font-size: 2rem;
	line-height: 1;
}

.tagline {
	margin: 0;
	font-size: 1rem;
	color: #777;
}

/* navigation */
.header-nav {
	display: flex;
	gap: 1rem;
	align-items: center;
}

.nav-link {
	text-decoration: none;
	color: #333;
	font-weight: 500;
	padding: 0.35rem 0.7rem; /* réduit la hauteur du bouton */
	border-radius: 6px;
	transition: all 0.25s ease;
	font-size: 1rem;
}

.nav-link:hover {
	background: #FFD17C;
}

main
{
	padding: 2rem;
}

/* CONTENT */
.content {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
	padding: 2rem;
}



/* FOOTER */
.site-footer {
	background: rgba(255, 255, 255, 0.98);
	backdrop-filter: blur(10px);
	border-top: 3px solid #667eea;
	margin-top: auto;
	box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.1);
}

.footer-content {
	max-width: 1200px;
	margin: 0 auto;
	padding: 2rem;
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 1.5rem;
	text-align: center;
}

.footer-authors {
	display: flex;
	flex-direction: column;
	gap: 0.75rem;
}

.authors-title {
	margin: 0;
	font-weight: 600;
	color: #333;
	font-size: 0.95rem;
	text-transform: uppercase;
	letter-spacing: 1px;
}

.authors-list {
	display: flex;
	gap: 0.75rem;
	align-items: center;
	flex-wrap: wrap;
	justify-content: center;
}

.author {
	color: #667eea;
	font-weight: 500;
	font-size: 1rem;
	padding: 0.25rem 0.75rem;
	background: rgba(102, 126, 234, 0.1);
	border-radius: 20px;
	transition: all 0.3s ease;
}

.author:hover {
	transform: translateY(-2px);
}

.author-separator {
	color: #999;
	font-weight: 300;
}

.footer-year {
	margin-top: 0.5rem;
}

.footer-year p {
	margin: 0;
	color: #999;
	font-size: 0.85rem;
}