* {
  box-sizing: border-box;
}

body {
  max-width: 52rem;
  margin: 0 auto;
  padding: 1rem;
  background: #f5f5f5;
  color: #222;
  font: 16px/1.55 system-ui, sans-serif;
}

a {
  color: #0645ad;
}

header,
main,
footer {
  margin-bottom: 1rem;
  padding: 1rem;
  border: 1px solid #ddd;
  background: #fff;
}

.site-title {
  font-size: 1.5rem;
  font-weight: 700;
}

nav a {
  margin-right: 0.75rem;
}

.post-date,
.post-list span {
  color: #666;
}

table {
  border-collapse: collapse;
}

th,
td {
  padding: 0.35rem 0.5rem;
  border: 1px solid #ddd;
}