:root {
  --bg: #0b0b0d;
  --surface: #16161a;
  --text: #f4f4f5;
  --muted: #9a9aa3;
  --gold: #f2c14f;
  --line: rgba(255, 255, 255, 0.08);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  line-height: 1.55;
}

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

a:hover {
  text-decoration: underline;
}

.wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 28px 22px 80px;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--line);
}

.brand {
  color: var(--text);
  font-weight: 650;
  letter-spacing: -0.02em;
}

nav {
  display: flex;
  gap: 16px;
  font-size: 0.92rem;
}

h1 {
  font-size: 2rem;
  letter-spacing: -0.04em;
  margin: 36px 0 12px;
}

h2 {
  font-size: 1.15rem;
  margin: 28px 0 8px;
}

p,
li {
  color: var(--muted);
}

ul {
  padding-left: 1.2rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 22px;
  margin: 28px 0;
}

.card h2 {
  margin-top: 0;
  color: var(--text);
}

.langs {
  display: flex;
  gap: 10px;
  margin: 18px 0 8px;
  font-size: 0.9rem;
}

.note {
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: 40px;
}

footer {
  margin-top: 48px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.88rem;
}