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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: #111;
  background: #fff;
}

header {
  position: fixed;
  top: 0;
  right: 0;
  padding: 2rem;
  text-align: right;
}

.name {
  display: block;
  font-weight: 600;
  margin-bottom: 1rem;
  letter-spacing: 0.05em;
}

nav a {
  display: block;
  color: #666;
  text-decoration: none;
  margin-bottom: 0.25rem;
}

nav a:hover,
nav a.active {
  color: #111;
}

main {
  padding: 2rem;
  padding-left: 10%;
  padding-top: 5%;
  max-width: 800px;
}

.page {
  display: none;
}

.page.active {
  display: block;
}

p {
  margin-bottom: 1rem;
}

ul {
  list-style: disc;
  padding-left: 1.25rem;
}

ul li {
  margin-bottom: 0.5rem;
}

a {
  color: #111;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

b, strong {
  font-weight: 600;
}

.hidden {
  display: none;
}

.essay-list ul {
  list-style: none;
  padding-left: 0;
}

.essay-link {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
}

.essay-date {
  color: #666;
  font-size: 0.875rem;
}

.essay-post {
  display: none;
}

.essay-post.active {
  display: block;
}

.back-link {
  display: inline-block;
  color: #666;
  margin-bottom: 1.5rem;
}

h2 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.post-date {
  color: #666;
  font-size: 0.875rem;
  margin-bottom: 1.5rem;
}

.lang-toggle {
  margin-bottom: 1.5rem;
}

.lang-btn {
  background: none;
  border: none;
  font-family: inherit;
  font-size: 0.875rem;
  color: #666;
  cursor: pointer;
  padding: 0;
  margin-right: 0.75rem;
}

.lang-btn:hover,
.lang-btn.active {
  color: #111;
}