.card-option img {
  width: 90px;
  height: 40px;
  object-fit: contain;
}
.card-option {
  transition: border 0.3s;
}
.card-option.selected {
  border: 2px solid #1100ff;
  background-color: #ffffff;
}
.denomination-btn {
  transition: border 0.3s;
  width: 110px;
  height: 60px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  text-align: center;
  padding: 10px;
  border: 1px solid #d1d5db;
  border-radius: 8px;
}
.denomination-btn.selected {
  border: 2px solid #1100ff;
  background-color: #ffffff;
}
.denomination-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
.denomination-btn.out-of-stock {
  background-color: #e5e7eb;
  opacity: 0.5;
  cursor: not-allowed;
}
.quantity-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  border: 1px solid #d1d5db;
  border-radius: 50%;
  background-color: #e5e7eb;
}
.quantity-display {
  width: 40px;
  text-align: center;
  font-size: 18px;
}
.payment-option {
  transition: border 0.3s;
}
.payment-option.selected {
  border: 2px solid #1100ff;
}
.denomination-text {
  font-size: 18px;
  font-weight: bold;
  line-height: 1;
}
.denomination-price {
  font-size: 12px;
  color: #3b82f6;
  line-height: 1;
}
.denomination-line {
  width: 80%;
  height: 0.1px;
  background-color: #3b82f6;
  margin: 1px 0;
}
.denomination-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  justify-items: center;
  padding: 10px 0;
}
.quantity-container {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
}
.hidden {
  display: none;
}
.thongtinthantoan {
  margin-top: 1rem;
  padding: 1rem;
  background-color: #f3f4f6;
  border-radius: 8px;
  text-align: center;
}
.thongtinthantoan .title {
  font-size: 1.25rem;
  font-weight: bold;
  margin-bottom: 0.5rem;
}
.thongtinthantoan .load .des {
  font-size: 0.875rem;
  color: #4b5563;
  margin-bottom: 0.5rem;
}
.thongtinthantoan .qrcode .img {
  margin: 0 auto;
  width: 192px;
  height: 192px;
}
.thongtinthantoan .qrcode .img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.thongtinthantoan .noidungbank {
  margin-top: 1rem;
  text-align: left;
}
.thongtinthantoan .infothanhtoan {
  display: flex;
  justify-content: space-between;
  padding: 0.5rem 0;
  font-size: 0.875rem;
}
.thongtinthantoan .chitiet1 {
  font-weight: 600;
  color: #333;
}
.thongtinthantoan .chitiet2 {
  color: #666;
}
.thongtinthantoan .chitiet2 i {
  cursor: pointer;
  margin-left: 0.25rem;
}
.thongtinthantoan .nhac {
  font-size: 0.75rem;
  color: #dc2626;
  margin-top: 0.5rem;
}
.thongtinthantoan .btn-thanhtoan {
  margin-top: 1rem;
  width: 100%;
  background-color: #1e40af;
  color: white;
  padding: 0.75rem;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  border: none;
}
.thongtinthantoan .btn-thanhtoan:hover:not(:disabled) {
  background-color: #1e3a8a;
}
.thongtinthantoan .btn-thanhtoan:disabled {
  background-color: #6b7280;
  cursor: not-allowed;
}
.notification {
  position: fixed;
  top: 20px;
  right: 20px;
  background-color: #ff0000;
  color: rgb(0, 0, 0);
  padding: 1rem;
  border-radius: 8px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 300px;
  z-index: 1000;
  transition: opacity 0.3s ease;
}
.notification.error {
  background-color: #ef4444;
}
.notification .close-btn {
  margin-left: 1rem;
  cursor: pointer;
  font-size: 1.25rem;
}
.footer {
  background-color: #1e40af;
  color: white;
  padding: 2rem 1rem;
  text-align: center;
}
.footer a {
  color: #60a5fa;
  text-decoration: none;
  transition: color 0.3s;
}
.footer a:hover {
  color: #ffffff;
}
.footer .social-icons a {
  margin: 0 0.5rem;
  font-size: 1.5rem;
}
.footer .contact-info p {
  margin: 0.5rem 0;
}
.footer .copyright {
  margin-top: 1rem;
  font-size: 0.875rem;
  color: #d1d5db;
}