body {
  margin:0;
  font-family: Arial;
}

.container {
  width: 90%;
  margin: auto;
}

.flex {
  display:flex;
  justify-content: space-between;
  align-items: center;
}

.header {
  background:#0b1f4d;
  color:white;
  padding:15px 0;
}

nav a {
  color:white;
  margin:10px;
  text-decoration:none;
}

.hero {
  background:url('../images/banner.jpg') center/cover no-repeat;
  height:500px;
  position:relative;
}

.overlay {
  background:rgba(0,0,0,0.6);
  color:white;
  height:100%;
  display:flex;
  flex-direction:column;
  justify-content:center;
  align-items:center;
}

.section {
  padding:60px 20px;
  text-align:center;
}

.light {
  background:#f4f4f4;
}

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

.card {
  background:white;
  padding:20px;
  box-shadow:0 2px 10px rgba(0,0,0,0.1);
}

.btn {
  background:#ff6600;
  color:white;
  padding:10px 20px;
  margin:10px;
  text-decoration:none;
}

.btn-outline {
  border:2px solid white;
  color:white;
  padding:10px 20px;
  margin:10px;
}

.cta {
  background:#0b1f4d;
  color:white;
  padding:50px;
  text-align:center;
}

.footer {
  background:#222;
  color:white;
  text-align:center;
  padding:20px;
}