.popup-overlay {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.5);
  display: none;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.popup-box {
  background: #fff;
  border-radius: 12px;
  padding: 20px;
  width: 90%;
  max-width: 400px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.2);
  position: relative;
}

.popup-box h2 {
  margin-top: 0;
  font-size: 20px;
  text-align: center;
}

.popup-box input,
.popup-box textarea {
  width: 100%;
  margin: 8px 0;
  padding: 10px;
  font-size: 16px;
  border-radius: 8px;
  border: 1px solid #ccc;
  box-sizing: border-box;
}

.popup-box button {
  width: 100%;
  padding: 12px;
  background: #2196F3;
  color: white;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-size: 16px;
  margin-top: 10px;
}

.close-btn {
  position: absolute;
  top: 10px;
  right: 15px;
  font-size: 18px;
  cursor: pointer;
  color: #999;
}