*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Poppins', sans-serif;
  /* variables */
  /* sb: sombra  // cp: cuerpo // ep: elementos del cuerpo */
}
body {
	display: flex;
	justify-content: center;
	color: #543131;
	background-color: #75524D;
}
.container-main {
	margin: 1.5rem;
	padding: 1.25rem;
	border-radius: 1rem;
	background: linear-gradient(145deg, #8f6862, #795753);
	box-shadow:  8px 8px 21px #5c433f,
	             -8px -8px 21px #b07f79;
}
.container-main .title {
	text-align: center;
}
.title span {
	color: #f2ebd3;
}
.container-controls {
	display: flex;
	justify-content: space-around;
	margin: 0.625rem;
	font-size: 1.563rem;
}
.container-controls .result span {
	color: #55D529;
}
.container-controls .reset {
	cursor: pointer;
}
.container-controls .reset:hover {
	color: #f2ebd3;
}
.game-grid {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	grid-template-rows: repeat(3, 1fr);
	grid-gap: 0.938rem;
	margin-top: 3rem;
	background: #442727;
}
.game-grid .x::after {
	content: 'x';
	height: 15rem;
	font-size: 13rem;
	cursor: default;
}
.game-grid .o::after {
	content: 'o';
	height: 15rem;
	font-size: 13rem;
	cursor: default;
}
.game-grid .won {
	color: #70FF31;
}
.game-grid .game-cell {
	display: flex;
	justify-content: center;
	align-items: center;
	width: 10.938rem;
	height: 10.938rem;
	cursor: pointer;
	background-color: #00acc1;
	background: #86615C;
	box-shadow: inset 8px 8px 21px #5c433f,
            inset -8px -8px 21px #b07f79;
}
@media screen and (min-width: 360px) and (max-width: 490px) {
	.game-grid {
		grid-gap: 0.313rem;
	}
	.game-grid .game-cell {
		width: 5rem;
		height: 5rem;
	}
	.container-controls .reset, .result {
		font-size: 1.25rem;
	}
	.game-grid .x::after, .game-grid .o::after {
    height: 7.5rem;
    font-size: 6rem;
	}
}