:root {
	--ink: #14151a;
	--muted: #5b6170;
	--accent: #1a5fd0;
	--bg: #ffffff;
	--line: #e6e8ee;
	--max: 44rem;
}

* { box-sizing: border-box; }

body {
	margin: 0;
	font: 17px/1.65 system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
	color: var(--ink);
	background: var(--bg);
}

.container { max-width: var(--max); margin: 0 auto; padding: 2.5rem 1.25rem 4rem; }

.site-header {
	max-width: var(--max);
	margin: 0 auto;
	padding: 1.25rem;
	display: flex;
	align-items: baseline;
	justify-content: space-between;
	border-bottom: 1px solid var(--line);
}
.site-header .brand { font-weight: 700; text-decoration: none; color: var(--ink); }
.site-header nav a { margin-left: 1.25rem; text-decoration: none; color: var(--muted); }
.site-header nav a:hover { color: var(--accent); }

h1 { font-size: 2rem; line-height: 1.2; margin: 0 0 1rem; }
h2 { font-size: 1.3rem; margin: 2.5rem 0 1rem; }

.hero h1 { font-size: 2.4rem; }
.lead { font-size: 1.2rem; color: var(--muted); }
.cta {
	display: inline-block;
	margin-top: 1rem;
	padding: 0.6rem 1.2rem;
	background: var(--accent);
	color: #fff;
	border-radius: 6px;
	text-decoration: none;
}

.post-list { list-style: none; padding: 0; }
.post-list li { padding: 1.25rem 0; border-bottom: 1px solid var(--line); }
.post-title { font-size: 1.2rem; font-weight: 600; text-decoration: none; color: var(--ink); }
.post-title:hover { color: var(--accent); }
.date { display: block; color: var(--muted); font-size: 0.85rem; margin: 0.2rem 0; }
.summary { margin: 0.4rem 0 0; color: var(--muted); }

.post p { margin: 1rem 0; }
.back { margin-top: 2.5rem; }
.back a { color: var(--accent); text-decoration: none; }

.site-footer {
	max-width: var(--max);
	margin: 0 auto;
	padding: 1.5rem 1.25rem;
	border-top: 1px solid var(--line);
	color: var(--muted);
	font-size: 0.85rem;
}