.payment-form-container {
  max-width: 600px;
  margin: 50px auto;
  padding: 30px;
  border-radius: 12px;
  background-color: #f7f9fb;
  box-shadow: 0 0 10px rgba(0,0,0,0.08);
  font-family: 'Segoe UI', sans-serif;
  text-align: center;
}
.payment-form-container h2 {
  margin-bottom: 20px;
  font-size: 24px;
}
.payment-form-container label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  text-align: left;
}
.payment-form-container select,
.payment-form-container input[type="url"] {
  width: 100%;
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 6px;
  margin-bottom: 20px;
}
#next-button {
  background-color: #0073aa;
  color: white;
  padding: 12px 24px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 16px;
}
#next-button:hover {
  background-color: #005d8a;
}

.popup-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background-color: rgba(0,0,0,0.6);
  z-index: 10000;
  justify-content: center;
  align-items: center;
}

.popup-content {
  background: white;
  padding: 30px;
  width: 90%;
  max-width: 500px;
  border-radius: 10px;
  position: relative;
  box-shadow: 0 10px 25px rgba(0,0,0,0.2);
  font-family: 'Segoe UI', sans-serif;
}

.close-button {
  position: absolute;
  top: 10px; left: 10px;
  background: red;
  color: white;
  border: none;
  font-size: 20px;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  cursor: pointer;
}

.payment-info-box {
  background-color: #f1f1f1;
  padding: 15px;
  margin-bottom: 20px;
  border-left: 4px solid #0073aa;
}

#payment-form input[type="url"],
#payment-form input[type="file"] {
  width: 100%;
  margin-bottom: 15px;
  padding: 10px;
  border-radius: 6px;
  border: 1px solid #ccc;
}

.submit-button {
  background-color: #28a745;
  color: white;
  padding: 12px 24px;
  border: none;
  border-radius: 6px;
  font-size: 16px;
  cursor: pointer;
}
.submit-button:hover {
  background-color: #1e7e34;
}