.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

header {
  background: #333;
  color: #fff;
  padding: 20px 0;
  text-align: center;
}

nav ul {
  list-style: none;
  padding: 0;
}

nav ul li {
  display: inline;
  margin: 0 15px;
}

nav a {
  color: #fff;
  text-decoration: none;
}

.hero {
  background: url('hero-image.jpg') no-repeat center center/cover;
  height: 400px;
  display: flex;
  justify-content: center;
  align-items: center;
  color: #fff;
  text-align: center;
}

.features {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
  margin: 40px 0;
}

.feature {
  background: #f4f4f4;
  padding: 20px;
  text-align: center;
  border-radius: 5px;
}

footer {
  background: #333;
  color: #fff;
  padding: 10px 0;
  text-align: center;
  position: relative;
}

@media (max-width: 768px) {
  .hero {
    height: 250px;
  }
  nav ul li {
    display: block;
    margin: 10px 0;
  }
}