body {
  margin: 0;
  font-family: Arial;
}

/* Header */
header {
  background: brown;
  color: white;
  padding: 15px;
  text-align: center;
}

nav a {
  color: white;
  margin: 10px;
  text-decoration: none;
}

/* Hero */
.hero {
  background: url('https://images.unsplash.com/photo-1509042239860-f550ce710b93');
  background-size: cover;
  color: white;
  text-align: center;
  padding: 100px 20px;
}

/* Menu */
.menu {
  padding: 40px;
  text-align: center;
}

.item {
  background: #f4f4f4;
  margin: 10px;
  padding: 20px;
  display: inline-block;
  width: 200px;
  border-radius: 10px;
}

/* Footer */
footer {
  background: black;
  color: white;
  text-align: center;
  padding: 10px;
}
button {
  background: brown;
  color: white;
  border: none;
  padding: 10px;
  cursor: pointer;
  border-radius: 5px;
}

button:hover {
  background: black;
}
.product-container {
  display: flex;
  flex-wrap: wrap;     
  gap: 20px;            
  justify-content: center; 
}
.item img {
    width: 100%;
    height: 220px;      /* កំណត់កម្ពស់ដូចគ្នា */
    object-fit: cover;  /* កាត់រូបឱ្យស្មើ */
    display: block;
}
.item {
    width: 250px;
    height: 380px;
    overflow: hidden;
    border-radius: 10px;
}
.item-img-top{
    height:220px;
    object-fit:cover;
}
/* hidden by default */
.hidden {
  display: none;
}

/* background dark */
#qr-box {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.7);
}

/* QR content center */
.qr-content {
  background: white;
  width: 300px;
  padding: 20px;
  text-align: center;
  margin: 100px auto;
  border-radius: 10px;
}