/* ===== Global Styles ===== */
body {
  margin: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: #f4f4f9;
  color: #333;
}

header {
  background: linear-gradient(135deg, #1e3c72, #2a5298);
  color: white;
  padding: 1.5rem;
  text-align: center;
}

header h1 {
  margin: 0;
  font-size: 2.5rem;
}

nav {
  background: #333;
  display: flex;
  justify-content: center;
}

nav a {
  color: white;
  text-decoration: none;
  padding: 1rem;
  transition: background 0.3s;
}

nav a:hover {
  background: #555;
}

.hero {
  background: url('https://images.unsplash.com/photo-1500530855697-b586d89ba3ee?ixlib=rb-4.0.3&auto=format&fit=crop&w=1600&q=80') no-repeat center center/cover;
  height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  text-shadow: 2px 2px 5px rgba(0,0,0,0.7);
}

.hero h2 {
  font-size: 2.5rem;
  background: rgba(0,0,0,0.5);
  padding: 1rem 2rem;
  border-radius: 10px;
}

section {
  padding: 2rem;
  max-width: 1000px;
  margin: auto;
}

section h3 {
  color: #2a5298;
  margin-bottom: 1rem;
}

.card {
  background: white;
  padding: 1.5rem;
  margin: 1rem 0;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}

button {
  background: #2a5298;
  color: white;
  border: none;
  padding: 0.7rem 1.2rem;
  border-radius: 5px;
  cursor: pointer;
  transition: background 0.3s;
}

button:hover {
  background: #1e3c72;
}

footer {
  background: #1e3c72;
  color: white;
  text-align: center;
  padding: 1rem;
  margin-top: 2rem;
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
  nav {
    flex-direction: column;
  }
  .hero h2 {
    font-size: 1.8rem;
  }
}