* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, "Segoe UI", Roboto, sans-serif;
  background: #0f172a;
  color: #e2e8f0;
  line-height: 1.6;
}

header {
  background: linear-gradient(135deg, #1e293b, #334155);
  padding: 3rem 2rem;
  text-align: center;
}

header h1 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

header p {
  color: #94a3b8;
}

main {
  max-width: 700px;
  margin: 0 auto;
  padding: 2rem;
}

section {
  margin-bottom: 2rem;
}

h2 {
  color: #38bdf8;
  margin-bottom: 0.75rem;
  border-bottom: 1px solid #334155;
  padding-bottom: 0.25rem;
}

ul {
  padding-left: 1.2rem;
}

footer {
  text-align: center;
  padding: 1.5rem;
  color: #64748b;
  font-size: 0.85rem;
}