body {
	margin: 0;
	font-family: 'Segoe UI', Roboto, Arial, sans-serif;
	color: #222;
	background: #fdfdfd;
}

header {
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	background: #fff;
	box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
	display: flex;
	justify-content: space-between;
	align-items: center;
	padding: 10px 20px;
	z-index: 1000;
}
header img {
	height: 40px;
}
header nav a {
	margin: 0 10px;
	text-decoration: none;
	color: #333;
	font-weight: 500;
}
header nav a:hover {
	color: #00796b;
}

section {
	padding: 80px 20px;
	max-width: 1200px;
	margin: auto;
}

.hero {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 30px;
	background-color: #eee;
}
.hero img {
	flex: 1;
	max-width: 300px;
	border-radius: 8px;
}
.hero div {
	flex: 1;
}
.hero h1 {
	font-size: 36px;
	margin: 0;
}
.hero .preco {
	font-size: 22px;
	margin: 15px 0;
	color: #00796b;
}
.botao {
	display: inline-block;
	background: #00796b;
	color: #fff;
	padding: 12px 20px;
	border-radius: 6px;
	text-decoration: none;
}
.botao:hover {
	background: #004d40;
}

.sobre {
	background: #fff;
	text-align: center;
}
.sobre h2 {
	margin-bottom: 20px;
}
.sobre .grid {
	display: flex;
	justify-content: center;
	gap: 20px;
}
.sobre img {
	max-width: 150px;
}

.capitulo {
	background: #eee;
	text-align: center;
}
.capitulo img {
	max-width: 250px;
	margin-bottom: 20px;
}

.comprar {
	display: flex;
	flex-wrap: wrap;
	gap: 30px;
	align-items: center;
}
.comprar img {
	flex: 1;
	max-width: 300px;
	border-radius: 8px;
}
.comprar div {
	flex: 1;
}

.destaque {
	position: relative;
}
.destaque img {
	width: 100%;
	display: block;
}
.destaque h2 {
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	color: #fff;
	font-size: 32px;
	background: rgba(0, 0, 0, 0.5);
	padding: 10px 20px;
	border-radius: 6px;
}

footer {
	background: #222;
	color: #ccc;
	text-align: center;
	padding: 30px 20px;
}
footer img {
	height: 50px;
	margin-bottom: 10px;
}
footer p {
	margin: 5px 0;
	font-size: 14px;
}
footer .direitos {
	font-size: 12px;
	color: #888;
	margin-top: 8px;
}

@media (max-width: 900px) {
	.hero,
	.comprar {
		flex-direction: column;
		text-align: center;
	}
}