body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, sans-serif;
  background: #f5f5f7;
  color: #111;
}

header {
  background: #1c1c1e;
  color: white;
  padding: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

header h1 {
  letter-spacing: 3px;
  font-weight: 500;
}

button {
  background: #2c2c2e;
  color: white;
  border: none;
  padding: 10px 20px;
  cursor: pointer;
  border-radius: 6px;
  transition: 0.3s;
}

button:hover {
  background: #3a3a3c;
}

.products {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  padding: 40px;
  gap: 30px;
}

.product-card {
  background: white;
  padding: 20px;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  cursor: pointer;
  transition: 0.3s;
}

.product-card:hover {
  transform: translateY(-5px);
}

.modal, .cart {
  display: none;
  position: fixed;
  background: rgba(0,0,0,0.5);
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
}

.modal-content, .cart {
  background: white;
  width: 400px;
  padding: 30px;
  margin: 100px auto;
  border-radius: 12px;
}

.cart {
  right: 0;
  left: auto;
  width: 400px;
  height: 100%;
  margin: 0;
}