:root {
  --bg: #0b1020;
  --card: #141b2d;
  --text: #f5f7fb;
  --muted: #b8c0d4;
  --accent: #4da3ff;
  --border: #27314a;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: linear-gradient(180deg, #0b1020 0%, #11182a 100%);
  color: var(--text);
  line-height: 1.6;
}
.wrap {
  max-width: 860px;
  margin: 0 auto;
  padding: 40px 20px 64px;
}
header {
  padding: 24px 0 16px;
}
h1 {
  margin: 0 0 8px;
  font-size: clamp(2rem, 6vw, 3.3rem);
  letter-spacing: -0.03em;
}
h2 {
  margin-top: 36px;
  font-size: 1.35rem;
}
p, li {
  color: var(--muted);
}
.card {
  background: rgba(20, 27, 45, 0.92);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 24px;
  margin: 20px 0;
}
a {
  color: var(--accent);
  text-decoration: none;
}
a:hover { text-decoration: underline; }
nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 18px;
}
nav a {
  display: inline-block;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
}
footer {
  margin-top: 48px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.92rem;
}