.popup-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(20, 20, 20, 0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  animation: fadeIn 0.3s ease;
}

.popup-content {
  background: #fff;
  padding: 30px 40px;
  border-radius: 12px;
  text-align: center;
  max-width: 450px;
  width: 90%;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.25);
  animation: slideIn 0.3s ease;
}

.popup-content h2 {
  color: #c59d5f;
  font-size: 22px;
  margin-bottom: 10px;
}

.popup-content p {
  color: #333;
  font-size: 15px;
  line-height: 1.6;
  margin: 10px 0;
}

.popup-content strong {
  color: #c59d5f;
}

.popup-content button {
  background-color: #c59d5f;
  color: #fff;
  border: none;
  padding: 10px 25px;
  font-size: 15px;
  border-radius: 6px;
  margin-top: 15px;
  cursor: pointer;
  transition: background 0.3s ease;
}

.popup-content button:hover {
  background-color: #b1884f;
}

/* Hiệu ứng */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideIn {
  from { transform: translateY(-20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* Responsive */
@media (max-width: 480px) {
  .popup-content {
    padding: 20px;
  }

  .popup-content h2 {
    font-size: 18px;
  }

  .popup-content p {
    font-size: 14px;
  }
}