:root {
  --bg: #0a0b10;
  --panel: #141722;
  --text: #f3f4f6;
  --muted: #a1a1aa;
  --accent: #8b8ff9;
  --accent-2: #6d28d9;
  --border: #24283a;
  --maxw: 860px;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  background: radial-gradient(circle at top, #121528 0%, var(--bg) 45%);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
}

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

a:hover {
  text-decoration: underline;
}

.page {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 40px 20px 72px;
}

.card {
  background: rgba(20, 23, 34, 0.92);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 28px;
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.28);
}

.eyebrow {
  display: inline-block;
  margin-bottom: 12px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(139, 143, 249, 0.15);
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

h1, h2, h3 {
  margin: 0 0 12px;
  line-height: 1.15;
}

h1 {
  font-size: 36px;
}

h2 {
  margin-top: 28px;
  font-size: 22px;
}

p, li {
  color: var(--text);
  font-size: 16px;
}

ul {
  padding-left: 20px;
}

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

.nav {
  display: flex;
  gap: 14px;
  margin-bottom: 20px;
}

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

.nav a.active {
  color: var(--text);
  font-weight: 600;
}

.footer {
  margin-top: 28px;
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 640px) {
  .page {
    padding: 20px 14px 40px;
  }

  .card {
    padding: 20px;
    border-radius: 16px;
  }

  h1 {
    font-size: 28px;
  }
}