body {
  font-family: 'Poppins', sans-serif;
  margin: 0; padding: 0; background: #f9f9f9;
}
.sticky-nav {
  background: #ffffffdd; padding: 1em 2em; position: sticky; top: 0;
  display: flex; justify-content: space-between; align-items: center; box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
.sticky-nav .logo { font-weight: bold; }
.sticky-nav nav a { margin: 0 0.5em; text-decoration: none; color: #333; }
.hero {
  height: 80vh; background-size: cover; background-position: center;
  display: flex; flex-direction: column; justify-content: center; align-items: center; color: #fff;
  text-shadow: 0 2px 4px rgba(0,0,0,0.4);
}
.btn {
  margin: 1em; padding: 0.75em 1.5em; background: #007bff; color: white;
  border-radius: 5px; text-decoration: none;
}
.secondary { background: #ffc107; color: #000; }
img { max-width: 100px; margin: 10px; }
form { max-width: 400px; margin: auto; display: flex; flex-direction: column; gap: 10px; }