:root {
	--primary: gainsboro;
	--accent: whitesmoke;
	--matched: whitesmoke;
}

/* GLOBAL */

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

body {
	background: #fff;
	margin: 4% 0;
	padding: 0;
	font-family: "Inter",sans-serif;
	font-weight: 400;
	font-style: normal;
	color: #000;
}

div, span, p, img, object {
	margin: 0;
	padding: 0;
	border: 0;
	outline: 0;
}

a, a:hover {
	color: #000;
	text-decoration: none;
	outline: none;
}

/* STRUCTURE */

#wrapper {
	max-width: 600px;
	width: 100%;
	text-align: center;
	margin: 0 auto;
}

.game-board {
	display: grid;
	grid-template-columns: repeat(4, 1fr);
	gap: 15px;
	margin-bottom: 20px;
}

/* CARTES */

.card {
	width: 100%;
	aspect-ratio: 1 / 1;
	background-color: var(--primary);
	color: #fff;
	display: flex;
	justify-content: center;
	align-items: center;
	border-radius: 16px;
	font-size: 2.4rem;
	cursor: pointer;
	user-select: none;
	transition: background-color 0.3s ease, transform 0.2s ease;
}

.card.revealed {background-color: var(--accent);}
.card.matched {background-color: var(--matched); cursor: default;}

/* MESSAGE VICTOIRE */

.win-message {display: none;}

/* BOUTONS */

.bouton {
	display: block;
	width: 100%;
	text-align: center;
	margin: 60px auto 60px auto;
}

#nouvellepartie,
#retourchoix {
	padding-top: 20px;
	padding-right: 20px;
	padding-bottom: 20px;
	text-align: center;
	font-size: 1.4em;
	letter-spacing: 1px;
	cursor: pointer;
	user-select: none;
	-webkit-user-select: none;
}

#nouvellepartie {background: whitesmoke url(../img/nouvellecarte.png) 20px center no-repeat; background-size: 24px; padding-left: 58px;}
#retourchoix {background: whitesmoke url(../img/menu.png) 20px center no-repeat; background-size: 24px; padding-left: 58px;}

/* MEDIA QUERIES */

@media only screen and (max-width: 767px) {
	#wrapper {width: 90% !important;}
	.game-board {gap: 5px !important;}
}