body {
  font-family: system-ui, sans-serif;
  margin: 0;
  padding: 0;
  background: #fafafa;
  color: #222;
}

.container {
  width: 85%;
  max-width: 720px;
  margin: auto;
  padding: 20px;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  gap: 12px;
}

.lang-switcher {
  font-size: 0.9rem;
}

.lang-switcher select {
  font-size: 1rem;
  white-space: nowrap;
  padding: 2px 4px;
  box-sizing: border-box;
  min-width: 120px;
}

h1 {
  font-size: 1.6rem;
  margin: 0;
}

h2, h3 {
  margin-top: 1.5rem;
}

a {
  color: #0066cc;
}

code {
  background: #eee;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9em;
}