body {
  font-family: Arial, sans-serif;
  margin: 0;
  background: #f4f6f8;
  color: #333;
}

header {
  background: #0d6efd;
  color: white;
  text-align: center;
  padding: 20px;
}

.section {
  padding: 20px;
}

.section h2 {
  margin-bottom: 10px;
}

.card {
  background: white;
  padding: 15px;
  margin-bottom: 15px;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}

.card h3 {
  margin: 0 0 5px;
}

.card p {
  margin: 0 0 10px;
}

button {
  background: #25d366;
  color: white;
  border: none;
  padding: 10px 14px;
  border-radius: 5px;
  cursor: pointer;
}

button:hover {
  background: #1ebc5a;
}

.info {
  background: #eef2f7;
}

footer {
  text-align: center;
  padding: 15px;
  font-size: 14px;
  background: #ddd;
}