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

body {
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 22px;
  line-height: 1.75;
  color: #111;
  background: #fff;
  max-width: 780px;
  margin: 3rem auto;
  padding: 0 1.5rem;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 2.5rem;
  border-bottom: 2px solid #ccc;
  padding-bottom: 0.75rem;
}

header > a {
  font-size: 1.3rem;
  font-weight: bold;
  text-decoration: none;
  color: #111;
}

.lang-switch {
  font-size: 1rem;
}

.lang-switch a {
  color: #555;
  text-decoration: none;
}

.lang-switch a:hover {
  color: #111;
}

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

.post-list li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 0.75rem 0;
  border-bottom: 1px solid #ddd;
}

.post-list a {
  color: #111;
  font-size: 1.1rem;
}

.date {
  font-size: 0.9rem;
  color: #666;
  white-space: nowrap;
  margin-left: 1.5rem;
}

article h1 {
  font-size: 2rem;
  line-height: 1.3;
  margin-bottom: 0.4rem;
}

article time {
  font-size: 0.9rem;
  color: #666;
  display: block;
  margin-bottom: 2rem;
}

article .content h2 {
  font-size: 1.5rem;
  margin-top: 2.5rem;
  margin-bottom: 0.5rem;
}

article .content h3 {
  font-size: 1.2rem;
  margin-top: 2rem;
  margin-bottom: 0.4rem;
}

article .content p {
  margin-bottom: 1.4rem;
}

article .content ul, article .content ol {
  padding-left: 1.5rem;
  margin-bottom: 1.4rem;
}

article .content li {
  margin-bottom: 0.4rem;
}

a {
  color: #0044aa;
}

a:hover {
  color: #002277;
}

footer {
  margin-top: 3rem;
  text-align: center;
}

footer p {
  font-size: 1rem;
  color: #555;
}