body {
  font-family: Arial, sans-serif;
  background: #f6f6f6;
  margin: 0;
  text-align: center;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #ffcb05;
  padding: 10px 20px;
}

.admin-btn {
  background: #333;
  color: white;
  border: none;
  padding: 10px 15px;
  border-radius: 6px;
  cursor: pointer;
}

.main-title {
  color: #333;
}

.store {
  border: 2px solid #ccc;
  margin: 20px auto;
  width: 80%;
  background: white;
  border-radius: 10px;
  padding: 15px;
}

.store-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.item img {
  width: 120px;
  border-radius: 8px;
}

.qty-label {
  font-size: 18px;
  margin: 10px 0;
}

button {
  padding: 5px 10px;
  margin: 5px;
  border: none;
  background: #ffcb05;
  cursor: pointer;
  border-radius: 5px;
  font-weight: bold;
}

button:hover {
  background: #ffd633;
}

.checkout-btn {
  background: #4CAF50;
  color: white;
  padding: 15px 25px;
  font-size: 18px;
  border-radius: 8px;
  margin-top: 20px;
}

#receipt-section {
  background: white;
  width: 80%;
  margin: 40px auto;
  padding: 20px;
  border-radius: 10px;
  text-align: left;
}

#receipt {
  white-space: pre-wrap;
  font-family: monospace;
}

.modal {
  display: none;
  position: fixed;
  z-index: 10;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.6);
}

.modal-content {
  background: white;
  padding: 20px;
  width: 300px;
  margin: 15% auto;
  border-radius: 10px;
  text-align: center;
}