:root {
  --bg: #f6f8fb;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --line: #e5e7eb;
  --brand: #2f80ed;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, Segoe UI, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

a {
  color: var(--brand);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  width: min(980px, 92vw);
  margin: 32px auto;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 20px;
  margin-bottom: 14px;
}

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

h2 {
  margin: 24px 0 8px;
  color: var(--brand);
}

h3 {
  margin: 18px 0 8px;
}

.muted {
  color: var(--muted);
}

.lang {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.4px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px 10px;
}

.cta-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 16px;
}

.button {
  display: inline-block;
  padding: 10px 14px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #fff;
}

.button.primary {
  border-color: var(--brand);
  background: var(--brand);
  color: #fff;
}

ul {
  margin-top: 8px;
}

code {
  background: #eef2f7;
  border-radius: 6px;
  padding: 2px 6px;
}

footer {
  margin-top: 20px;
  font-size: 13px;
  color: var(--muted);
}