body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background: #f9f9f9;
  color: #333;
}
header nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  background-color: #001f3f;
  color: white;
}
header nav ul {
  list-style: none;
  display: flex;
  gap: 1rem;
}
header nav a {
  color: white;
  text-decoration: none;
}
img {
  max-width: 100%;
  height: auto;
  display: block;

}
.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}
.hero {
  background-color: #0074D9;
  color: white;
  padding: 4rem 2rem;
  text-align: center;
}
.section {
  padding: 2rem;
  background: white;
}
.section.alt {
  background: #f0f0f0;
}
.grid {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
}
footer {
  text-align: center;
  padding: 1rem;
  background: #001f3f;
  color: white;
}