body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #f5f7fb;
  color: #222;
}

.hero {
  background: #111827;
  color: white;
  text-align: center;
  padding: 80px 20px;
}

section {
  max-width: 900px;
  margin: 40px auto;
  padding: 20px;
}

h1 {
  font-size: 42px;
}

h2 {
  color: #111827;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 15px;
}

.cards div {
  background: white;
  padding: 20px;
  border-radius: 12px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.08);
  text-align: center;
}

footer {
  text-align: center;
  padding: 25px;
  background: #111827;
  color: white;
}