body {
  font-family: Arial, sans-serif;
  margin: 0;
  background: #f5f7fb;
  color: #142033;
}

header {
  background: #061a33;
  color: white;
  padding: 20px;
}

nav a {
  color: white;
  margin-right: 20px;
  text-decoration: none;
  font-weight: bold;
}

.hero {
  background: linear-gradient(rgba(6,26,51,0.85), rgba(6,26,51,0.75)),
  url('https://images.unsplash.com/photo-1486406146926-c627a92ad1ab?auto=format&fit=crop&w=1800&q=80') center/cover;
  color: white;
  padding: 120px 40px;
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: auto;
}

.section {
  padding: 60px 0;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit,minmax(250px,1fr));
  gap: 20px;
}

.card {
  background: white;
  padding: 25px;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.08);
}

footer {
  background: #061a33;
  color: white;
  padding: 30px;
  margin-top: 40px;
}

.btn {
  display: inline-block;
  background: #006edc;
  color: white;
  padding: 12px 20px;
  text-decoration: none;
  border-radius: 5px;
  margin-top: 10px;
}

.logo {
  width: 140px;
  background: black;
  padding: 10px;
}