:root {
  --bg: #0f172a;
  --fg: #e5e7eb;
  --muted: #9ca3af;
  --accent: #38bdf8;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
}

.container {
  max-width: 720px;
  padding: 3rem 1.5rem;
  margin: 0 auto;
}

header {
  margin-bottom: 3rem;
}

h1 {
  font-size: 2.5rem;
  margin-bottom: 0.25rem;
}

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

h2 {
  margin-top: 2.5rem;
  margin-bottom: 0.75rem;
  color: var(--accent);
}

ul {
  padding-left: 1.2rem;
}

li {
  margin-bottom: 0.5rem;
}

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

a:hover {
  text-decoration: underline;
}

footer {
  margin-top: 4rem;
  color: var(--muted);
  font-size: 0.9rem;
}