body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  margin: 0;
  background: #ffffff;
  color: #1a1a1a;
  line-height: 1.6;
}

.container {
  max-width: 900px;
  margin: auto;
  padding: 2rem;
}

header {
  border-bottom: 1px solid #e5e5e5;
}

h1 {
  margin: 0;
  font-size: 2rem;
  font-weight: 500;
}

.lang {
  margin-top: 1rem;
}

.lang button {
  background: none;
  border: none;
  margin-right: 1rem;
  font-size: 0.9rem;
  cursor: pointer;
  color: #555;
}

.lang button:hover {
  color: #000;
}

h2 {
  margin-top: 2.5rem;
  font-size: 1.2rem;
  font-weight: 500;
}

ul {
  padding-left: 1.2rem;
}

.highlight {
  margin-top: 1.5rem;
  font-style: italic;
  color: #444;
}

a {
  color: #000;
  text-decoration: none;
  border-bottom: 1px solid #ccc;
}

a:hover {
  border-bottom: 1px solid #000;
}

footer {
  border-top: 1px solid #e5e5e5;
  margin-top: 4rem;
  font-size: 0.85rem;
  color: #666;
}

.lang-block {
  display: none;
}