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

body {
	font-family: Arial, sans-serif;
	line-height: 1.6;
	color: #222;
	background: #f5f5f5;
}

.top-nav {
	background: #ffffff;
	border-bottom: 1px solid #dddddd;
}

.nav-inner {
	display: flex;
	gap: 1rem;
	align-items: center;
	justify-content: center;
}

.nav-item {
	display: inline-block;
	padding: 0.5rem 0.75rem;
	text-decoration: none;
	color: #1f2937;
	font-weight: 600;
	border-radius: 0.4rem;
	transition: background-color 0.2s ease, color 0.2s ease;
}

.nav-item:hover,
.nav-item:focus-visible {
	background: #eef2ff;
	color: #1d4ed8;
}

.container {
	width: min(90%, 960px);
	margin: 0 auto;
	padding: 1.5rem 0;
}

.site-header,
.site-footer {
	background: #fff;
	border-bottom: 1px solid #e5e5e5;
}

.site-footer {
	border-top: 1px solid #e5e5e5;
	border-bottom: none;
}


main {
	min-height: 60vh;
	display: flex;
	flex-direction: column;
	align-items: center;
}

main > section:first-child {
	text-align: center;
}

h1,
h2 {
	margin-bottom: 0.75rem;
}


.content-panel {
	background: #ffffff00;
	border: 1px solid #dddddd00;
	border-radius: 0.6rem;
	padding: 1rem;
	width: min(100%, 800px);
	margin: 0 auto;
}

#markdown-content h1,
#markdown-content h2,
#markdown-content h3 {
	margin-top: 1rem;
	margin-bottom: 0.6rem;
}

#markdown-content p,
#markdown-content li {
	margin-bottom: 0.8rem;
}

#markdown-content h1 {
	text-align: center;
	margin-bottom: 1.5rem;
}

#markdown-content p,
#markdown-content li {
	text-align: left;
}