body {
  margin: 0;
  font-family: Arial, sans-serif;
  line-height: 1.6;
}
.container {
  width: 90%;
  max-width: 1100px;
  margin: auto;
}
.header {
  background: #0a2540;
  color: #fff;
  padding: 1rem 0;
}
.logo {
  margin: 0;
}
.nav {
  list-style: none;
  display: flex;
  gap: 1rem;
}
.nav a {
  color: #fff;
  text-decoration: none;
}
.hero {
  background: #f4f6f8;
  padding: 4rem 0;
  text-align: center;
}
.btn {
  display: inline-block;
  background: #0a2540;
  color: #fff;
  padding: 0.7rem 1.2rem;
  text-decoration: none;
}
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}
.card {
  padding: 1.5rem;
  background: #eef2f5;
  text-align: center;
}
.footer {
  background: #0a2540;
  color: #fff;
  text-align: center;
  padding: 1rem 0;
  margin-top: 2rem;
}
input, textarea {
  width: 100%;
  padding: 0.6rem;
  margin-bottom: 0.8rem;
}