#codeForm {
  padding: 35px;
  border: 1px solid #ddd;
}

.input-group {
  position: relative;
  margin-bottom: 15px;
}

.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
}

.form-control {
  width: 100%;
  padding: 8px 12px;
  padding-right: 25px; /* 별표를 위한 공간 확보 */
  border: 1px solid #ddd;
  border-radius: 4px;
}

.required-mark {
  position: absolute;
  right: 6px;
  top: 6px;
  color: #ff0000;
  font-size: 2em;
  line-height: 1;
  pointer-events: none; /* input 클릭 이벤트 방해 방지 */
}

.error-message {
  display: none;
  color: #ff0000;
  font-size: 0.9em;
  margin-top: 5px;
}

.form-control:invalid + .error-message {
  display: block;
}

/* 인증코드 입력 폼 스타일 */
.code-input-container {
  max-width: 400px;
  margin: 100px auto;
  padding: 20px;
}

.code-input-container .input-group {
  margin-bottom: 10px;
  width: 100%;
}

.code-input-container input[type="text"] {
  width: 100%;
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 4px;
  height: 40px;
}

.code-input-container .error-message {
  color: red;
  display: none;
}

.code-input-container .alert {
  margin-bottom: 10px;
}

.code-input-container .alert-danger {
  color: red;
}

.code-input-container .submit-btn {
  width: 100%;
  padding: 12px;
  background-color: #2196f3;
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 1.4rem;
}

.code-input-container .submit-btn:hover {
  background-color: #1976d2;
}

/* 입력 필드 에러 상태 */
.code-input-container input[type="text"].error {
  border-color: red;
}