body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #f4f4f4;
  color: #333;
  text-align: center;
}

header {
  background: #222;
  color: #fff;
  padding: 1rem;
}

header h1 {
  margin: 0;
}

nav {
  margin-top: 1rem;
}

nav a {
  margin: 0 1rem;
  text-decoration: none;
  color: #00d1b2;
  font-weight: bold;
}

main {
  padding: 2rem;
}

footer {
  margin-top: 2rem;
  padding: 1rem;
  background: #222;
  color: #fff;
}
.intro {
  padding: 2rem 1rem;
}

.cards {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem;
  padding: 2rem;
}

.card {
  background: #fff;
  border: 1px solid #ddd;
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  padding: 2rem;
  max-width: 300px;
  flex: 1;
  min-width: 250px;
}

.card h3 {
  margin-top: 0;
  color: #00bfa6;
}

.card p {
  font-size: 0.95rem;
  line-height: 1.5;
}

.button {
  display: inline-block;
  margin-top: 1rem;
  background: #00bfa6;
  color: #fff;
  padding: 0.6rem 1.2rem;
  text-decoration: none;
  border-radius: 6px;
  transition: background 0.3s;
}

.button:hover {
  background: #009a88;
}