body {
  font-family: 'Segoe UI', sans-serif;
  background: #f7faff;
  margin: 0;
  color: #002147;
}
header.hero {
  background: #003c71;
  color: white;
  text-align: center;
  padding: 1em;
}
.banner-img {
  width: 100%;
  height: auto;
}
nav {
  background: #d2dce8;
  padding: 1em;
  text-align: center;
}
nav a {
  color: #c8102e;
  margin: 0 1em;
  font-weight: bold;
  text-decoration: none;
}
main {
  padding: 2em;
}
.intro {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1em;
  margin-bottom: 2em;
}
.side-img {
  width: 280px;
  border-radius: 8px;
}
footer {
  background: #002147;
  color: white;
  text-align: center;
  padding: 1em;
}
form input, form textarea {
  width: 100%;
  padding: 10px;
  margin: 10px 0;
}
button {
  background: #c8102e;
  color: white;
  padding: 10px 20px;
  border: none;
  border-radius: 4px;
}