.blue_box.justify_center {
    gap: 10px;
}

.message_box {
    height: 250px;              /* 全体サイズを画面高に固定 */
    display: flex;
    flex-direction: column;
}

.message {
    flex: 1;                    /* フッタを除いた領域 */
    display: flex;
    align-items: center;        /* 縦方向中央寄せ */
}

.button.login {
    font-size: 24px;
}

.button.confirm {
    box-sizing: border-box;
}

button.button {
    line-height: inherit;
}

.id_input {
    border: 1px solid #cccccc;
    background-color: #FFFFFF;
    width:160px;
    height:15px;
}

.id_input:focus {
    background-color: #e2edfe;
}

/* ワンタイムパスワード入力画面 */
.number_container {
  display: flex;
  gap: 8px;
  margin-top: 20px;
}

.number_input {
  width: 44px;
  height: 52px;
  font-size: 24px;
  text-align: center;
  border: 1px solid #ccc;
  border-radius: 6px;
}

.number_input:focus {
  border-color: #4a90e2;
  outline: none;
}

.auth_area {
  margin: 0 200px 50px 200px;
}

.auth_area.disabled {
  pointer-events: none;
  filter: grayscale(1);
  opacity: 0.5;
}

.loader {
  visibility: hidden;
  margin-top: 20px;
}

.loader.active {
  visibility: visible;
}

.success {
    color: #2563eb;
}

.error {
    color: #d32f2f;
}

.qr_area {
  margin: 0 0 50px 0;
}

.qr_container {
    width: 200px;
    height: 200px;
    border: 1px solid #999;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    margin-top: 20px;
}

#qr_image {
    max-width: 100%;
    max-height: 100%;
    display: none;
}

#qr_placeholder {
    color: #666;
    font-size: 14px;
    text-align: center;
    position: absolute;
}