* {
  margin: 0; padding: 0; box-sizing: border-box;
}

body {
  font-family: Arial, sans-serif;
  background: #fff;
  color: #111;
  line-height: 1.6;
}

header {
  display: flex;
  justify-content: space-between;
  padding: 1rem 2rem;
  border-bottom: 1px solid #eee;
}

.logo a {
  text-decoration: none;
  font-weight: bold;
  font-size: 1.5rem;
  color: #111;
}

nav a {
  margin-left: 1rem;
  text-decoration: none;
  color: #111;
}

.hero {
  text-align: center;
  padding: 5rem 2rem;
}

.hero .btn {
  display: inline-block;
  margin-top: 1rem;
  background: #111;
  color: #fff;
  padding: 0.75rem 2rem;
  text-decoration: none;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 2rem;
  padding: 2rem;
}

.product-card {
  text-align: center;
}

.product-card img {
  max-width: 100%;
  height: auto;
}

.product-card .btn {
  display: inline-block;
  margin-top: 0.5rem;
  background: #111;
  color: #fff;
  padding: 0.5rem 1rem;
  text-decoration: none;
}

footer {
  text-align: center;
  padding: 2rem;
  border-top: 1px solid #eee;
  margin-top: 2rem;
}