body {
  font-family: Arial, sans-serif;
  margin: 0;
  background-color: #ffffff;
  color: #0A1F44;
}
header {
  background-color: #0A1F44;
  color: white;
  padding: 1em;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
nav a {
  color: white;
  margin: 0 0.5em;
  text-decoration: none;
}
.hero {
  background: url('https://via.placeholder.com/1200x400') center/cover no-repeat;
  color: white;
  text-align: center;
  padding: 5em 2em;
  background-color: #00000088;
}
.hero-content {
  background-color: rgba(0, 0, 0, 0.5);
  padding: 2em;
  border-radius: 10px;
  display: inline-block;
}
.btn {
  display: inline-block;
  margin: 1em 0.5em;
  padding: 0.75em 1.5em;
  background-color: #0A1F44;
  color: white;
  border-radius: 5px;
  text-decoration: none;
}
.testimonials {
  background-color: #f4f4f4;
  padding: 2em;
  text-align: center;
}
.testimonial {
  margin: 1em auto;
  max-width: 600px;
}
.testimonial img {
  border-radius: 50%;
  margin-bottom: 1em;
}
footer {
  background-color: #000;
  color: white;
  text-align: center;
  padding: 1em;
}