/* پس‌زمینه تار (Overlay) */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0,0,0,0.5);
  display: none; /* اول مخفی */
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

/* جعبه سفید وسط */
.modal-box {
  background-color: white;
  padding: 20px 30px;
  border-radius: 12px;
  max-width: 400px;
  width: 90%;
  box-shadow: 0 4px 15px rgba(0,0,0,0.3);
  text-align: center;
  position: relative;
}

/* دکمه بستن */
.modal-close {
  position: absolute;
  top: 8px;
  right: 12px;
  font-size: 20px;
  cursor: pointer;
  border: none;
  background: none;
}