body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
}
header {
  background: #004080;
  color: white;
  padding: 15px;
  text-align: center;
}
nav {
  background: #0066cc;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
}
nav a {
  color: white;
  padding: 12px 20px;
  text-decoration: none;
  display: block;
}
nav a:hover {
  background: #004080;
}
main {
  padding: 20px;
}
footer {
  background: #004080;
  color: white;
  text-align: center;
  padding: 15px;
  margin-top: 20px;
}
.escuelas-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 15px;
}
.escuela-card {
  border: 1px solid #ccc;
  border-radius: 8px;
  padding: 15px;
  background: #f9f9f9;
}
.escuela-card h3 {
  margin-top: 0;
  color: #004080;
}