:root {
  color-scheme: light;
  --bg: #f7f7f4;
  --text: #1d1d1f;
  --muted: #666a70;
  --line: #d8d8d2;
  --panel: #ffffff;
  --accent: #0a5bd3;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.7;
}

.page {
  max-width: 880px;
  margin: 0 auto;
  padding: 32px 18px 56px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
}

.brand {
  font-size: 15px;
  font-weight: 700;
}

.nav {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.nav a {
  color: var(--accent);
  font-size: 14px;
  text-decoration: none;
}

.hero,
.content {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.hero {
  padding: 28px;
  margin-bottom: 16px;
}

.content {
  padding: 12px 28px 28px;
}

h1 {
  margin: 0 0 8px;
  font-size: 30px;
  line-height: 1.25;
}

h2 {
  margin: 26px 0 8px;
  font-size: 20px;
}

p,
ul {
  margin: 10px 0;
}

ul {
  padding-left: 22px;
}

.lead,
.updated {
  color: var(--muted);
}

.language-switch {
  display: inline-flex;
  gap: 6px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f0f0ec;
}

.language-switch button {
  min-width: 54px;
  border: 0;
  border-radius: 6px;
  padding: 7px 10px;
  background: transparent;
  color: var(--text);
  font: inherit;
  font-size: 14px;
  cursor: pointer;
}

.language-switch button[aria-pressed="true"] {
  background: var(--panel);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.12);
}

.lang-panel[hidden] {
  display: none;
}

.footer {
  color: var(--muted);
  font-size: 13px;
  margin-top: 22px;
}

@media (max-width: 620px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero,
  .content {
    padding: 20px;
  }

  h1 {
    font-size: 25px;
  }
}