:root { color-scheme: light; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, "Noto Sans", sans-serif;
  margin: 0;
  background: #f7f7f8;
  color: #1f2937;
  line-height: 1.65;
}
.container {
  max-width: 860px;
  margin: 0 auto;
  padding: 40px 20px 64px;
}
.card {
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 18px;
  padding: 28px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.05);
}
h1 { font-size: 30px; line-height: 1.25; margin: 0 0 12px; }
h2 { font-size: 20px; margin-top: 30px; margin-bottom: 8px; }
p { margin: 8px 0; }
ul { padding-left: 22px; }
a { color: #2563eb; text-decoration: none; }
a:hover { text-decoration: underline; }
.nav, .language {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  margin: 18px 0 26px;
}
.badge {
  display: inline-block;
  border: 1px solid #d1d5db;
  border-radius: 999px;
  padding: 6px 12px;
  background: #fff;
}
.small { color: #6b7280; font-size: 14px; }
footer { margin-top: 32px; color: #6b7280; font-size: 13px; }