box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(to right, #0f2027, #203a43, #2c5364);
  color: #fff;
}

/* Header */
header {
  background-color: rgba(0, 51, 102, 0.9);
  padding: 20px;
  text-align: center;
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

header h1 {
  font-size: 2.5rem;
  letter-spacing: 2px;
}

nav {
  margin-top: 10px;
}

nav a {
  margin: 0 15px;
  text-decoration: none;
  color: #a8d0e6;
  font-weight: bold;
}

nav a:hover {
  color: #f1f1f1;
  border-bottom: 2px solid #a8d0e6;
}

/* Hero Section */
.hero {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 100px 20px;
  background-image: url('https://images.unsplash.com/photo-1585386959984-a41552254f01?ixlib=rb-4.0.3&auto=format&fit=crop&w=1350&q=80');
  background-size: cover;
  background-position: center;
}

.hero h2 {
  font-size: 3rem;
  margin-bottom: 20px;
  background: rgba(0,0,0,0.6);
  padding: 10px 20px;
  border-radius: 10px;
}

.hero p {
  font-size: 1.2rem;
  max-width: 600px;
  background: rgba(0,0,0,0.5);
  padding: 10px 20px;
  border-radius: 8px;
}

/* Footer */
footer {
  text-align: center;
  padding: 20px;
  background-color: #102e4a;
  color: #ccc;
  font-size: 0.9rem;
}