*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.65;
  color: #1a1a1a;
  background: #fafafa;
}

a {
  color: #0d47a1;
}

a:hover {
  color: #1565c0;
}

.site-header,
.site-footer,
main {
  max-width: 40rem;
  margin-inline: auto;
  padding-inline: 1.25rem;
}

.site-header {
  padding-top: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid #e0e0e0;
}

.site-title {
  font-size: 1.25rem;
  font-weight: 600;
  text-decoration: none;
  color: inherit;
}

.site-tagline {
  margin: 0.5rem 0 0;
  font-size: 0.9375rem;
  color: #555;
}

main {
  padding-block: 2rem;
}

.site-footer {
  padding-block: 2rem 3rem;
  font-size: 0.875rem;
  color: #666;
  border-top: 1px solid #e0e0e0;
}

.site-footer p {
  margin: 0.25rem 0;
}

.post-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.post-list li {
  margin-bottom: 2rem;
}

.post-list a {
  font-weight: 600;
  text-decoration: none;
}

.post-list a:hover {
  text-decoration: underline;
}

.post-list p {
  margin: 0.35rem 0 0;
  color: #444;
}

.meta {
  margin-top: 0.35rem;
  font-size: 0.875rem;
  color: #666;
}

.meta > * + *::before {
  content: " · ";
}

.kind {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #777;
}

.tags {
  font-size: 0.8125rem;
}

.post h1 {
  margin-top: 0;
  font-size: 1.75rem;
  line-height: 1.3;
}

.post p {
  margin: 1rem 0 0;
}

.back {
  margin-top: 2.5rem;
  font-size: 0.9375rem;
}