@import url(https://fonts.googleapis.com/css2?family=Noto+Sans+JP&display=swap);.flash-message {
  position: absolute;
  top: 0;
  background-color: #1d2946;
  color: #fff;
  height: 100%;
  width: 100%;
  display: grid;
  text-align: center;
  align-items: center;
  padding: 0% 5%;
  box-sizing: border-box;
  opacity: 0;
  transition: all 1s ease-in-out;
}

.flash-message.show {
  opacity: 1;
}

body {
  margin: 0%;
  line-height: 150%;
  background-color: #fffef3;
  color: #54472d;
}

.main-wrap {
  max-width: 600px;
  margin: 0 auto;
  background-color: #fffffffc;
  min-height: 100vh;
}

.credit {
  width: 90%;
  margin: 0% auto;
}

.credit__title {
  text-align: center;
  font-size: 120%;
  border-bottom: 2px solid #dbdbdb;
}

.credit__text {
  text-align: center;
  font-weight: bold;
}

.credit__text.\--new-password {
  font-size: 90%;
}

.credit__form {
  width: 82%;
  margin: 0% auto;
  text-align: center;
  font-weight: bold;
}

.credit__form__label {
  text-align: left;
  margin: 3% auto;
  white-space: nowrap;
}

.credit__form__input {
  width: 100%;
  background-color: #fff;
  text-align: center;
  font-size: 100%;
  height: 2rem;
  padding: 0;
  border: 1px solid #000;
  border-radius: 4px;
  box-sizing: border-box;
}

.credit__form__input.\--password {
  font-size: 120%;
}

.credit__form__btn {
  font-size: 120%;
  margin-top: 5%;
  padding: 2% 10%;
  color: #54472d;
  background-color: #f6ebd5;
  border-radius: 4px;
  border: 1px solid #000;
}

.credit__form__error-message {
  line-height: 0rem;
  opacity: 0;
  font-size: 85%;
  color: red;
  transition: all 0.5s ease-in-out;
}

.credit__form__error-message.show {
  line-height: 1rem;
  opacity: 1;
  margin-top: 2%;
}

.credit__mail-fin__text {
  font-weight: bold;
}

.credit__back-btn {
  display: block;
  text-align: center;
  color: #474545;
  font-size: 120%;
  font-weight: bold;
}

.navigation {
  z-index: 10001;
  max-width: 600px;
  margin: 0 auto;
}

.navigation__head {
  width: 100%;
}

.navigation__head__button {
  width: 13%;
  pointer-events: visible;
  background: none;
  border: none;
}

.navigation__head img {
  width: 100%;
}