body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: #f4f6f8;
  color: #333;
}

.header {
  background: #0f172a;
  color: #fff;
  padding: 15px 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header a {
  color: #cbd5e1;
  margin-left: 15px;
  text-decoration: none;
}

.header a:hover {
  color: #fff;
}

.hero {
  padding: 60px 30px;
  background: #1e293b;
  color: #fff;
  text-align: center;
}

.content {
  display: flex;
  gap: 20px;
  padding: 40px 30px;
}

.card {
  background: #fff;
  padding: 20px;
  border-radius: 6px;
  flex: 1;
}

.page {
  padding: 40px 30px;
  background: #fff;
  margin: 20px;
  border-radius: 6px;
}

footer {
  text-align: center;
  padding: 20px;
  color: #666;
}

.hero {
  background: url("hero.jpg") center/cover no-repeat;
}