.registration-form-container {
  max-width: 480px;
  margin: 0 0 20px 0; /* remove auto, keep top and bottom spacing */
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgb(0 0 0 / 0.1);
  padding: 20px 25px;
  box-sizing: border-box;
  /* optionally add left margin to separate from left edge */
  margin-left: 15px;
}

.registration-form-container h2 {
  text-align: center;
  margin-bottom: 20px;
  color: #0d6a95;
}

.registration-form-container form {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.registration-form-container label {
  font-weight: 600;
  margin-bottom: 5px;
  display: block;
  color: #333;
}

.registration-form-container select,
.registration-form-container input[type="text"],
.registration-form-container input[type="email"],
.registration-form-container textarea {
  width: 100%;
  padding: 8px 12px;
  font-size: 1rem;
  border: 1.8px solid #ccc;
  border-radius: 5px;
  transition: border-color 0.3s ease;
  box-sizing: border-box;
  resize: vertical;
}

.registration-form-container select:focus,
.registration-form-container input[type="text"]:focus,
.registration-form-container input[type="email"]:focus,
.registration-form-container textarea:focus {
  border-color: #0d6a95;
  outline: none;
}

.registration-form-container textarea {
  min-height: 70px;
}

.registration-form-container .copy-button {
  cursor: pointer;
  background: #0d6a95;
  color: white;
  padding: 7px 14px;
  font-size: 0.9rem;
  border: none;
  border-radius: 5px;
  align-self: flex-start;
  margin-bottom: 10px;
  transition: background-color 0.3s ease;
}

.registration-form-container .copy-button:hover {
  background: #084f68;
}

.registration-form-container .checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  color: #333;
}

.registration-form-container .checkbox-label input {
  width: 18px;
  height: 18px;
  cursor: pointer;
}

.registration-form-container button[type="submit"] {
  background-color: #0d6a95;
  color: white;
  font-size: 1.1rem;
  padding: 10px;
  border: none;
  border-radius: 7px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.registration-form-container button[type="submit"]:hover {
  background-color: #084f68;
}

.registration-form-container .error-message {
  color: #cc0000;
  font-size: 0.9rem;
  margin-top: -10px;
  margin-bottom: 8px;
}

.registration-form-container .success-message {
  color: #008000;
  font-size: 1rem;
  text-align: center;
  margin-top: 15px;
  font-weight: 600;
}

/* Responsive */
@media (max-width: 520px) {
  .registration-form-container {
    margin: 10px;
    padding: 15px 15px;
  }
}