/* ログイン画面のスタイル */
.login-page {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f8f9fa;
  padding: 20px;
  box-sizing: border-box;
}

.login-container {
  position: relative;
  width: 100%;
  max-width: 400px;
}

.login-card {
  background: white;
  border-radius: 12px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1), 0 1px 3px rgba(0, 0, 0, 0.08);
  overflow: hidden;
}

.login-card__header {
  background: linear-gradient(135deg, #989bc6 0%, #7d81a3 100%);
  padding: 20px;
  text-align: center;
  color: white;
}

.login-card__title {
  margin: 0;
  font-size: 28px;
  font-weight: 600;
  margin-bottom: 8px;
}

.login-card__subtitle {
  margin: 0;
  font-size: 14px;
  opacity: 0.9;
}

.login-card__body {
  padding: 30px;
}

/* キャラクターと題字。カードを画面の上下中央に保つため、カードの上に浮かせて置く */
.login-brand {
  position: absolute;
  bottom: 100%;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-bottom: 24px;
}

/* 画面の高さが足りないときは、はみ出さないよう通常の並びに戻す */
@media (max-height: 640px) {
  .login-brand {
    position: static;
  }
}

.login-brand__character {
  height: 80px;
  width: auto;
}

.login-brand__logo {
  height: 30px;
  width: auto;
  max-width: calc(100% - 74px);
  object-fit: contain;
}

/* エラーメッセージ */
.login-error {
  background: #fee;
  border: 1px solid #fcc;
  color: #c33;
  padding: 12px;
  border-radius: 6px;
  margin-bottom: 20px;
  font-size: 14px;
  text-align: center;
}

/* フォーム */
.login-form__group {
  margin-bottom: 20px;
}

.login-form__label {
  display: block;
  margin-bottom: 8px;
  font-size: 14px;
  font-weight: 500;
  color: #333;
}

.login-form__input {
  width: 100%;
  padding: 12px;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: 15px;
  transition: all 0.2s;
  box-sizing: border-box;
}

.login-form__input:focus {
  outline: none;
  border-color: #989bc6;
  box-shadow: 0 0 0 3px rgba(152, 155, 198, 0.1);
}

.login-form__input:invalid {
  border-color: #ddd;
}

.login-form__input:invalid:focus {
  border-color: #f66;
}

/* ボタン */
.login-form__actions {
  margin-top: 24px;
}

.login-btn {
  width: 100%;
  padding: 14px;
  font-size: 16px;
  font-weight: 600;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
}

.login-btn--primary {
  background: linear-gradient(135deg, #989bc6 0%, #7d81a3 100%);
  color: white;
}

.login-btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(152, 155, 198, 0.3);
}

.login-btn--primary:active {
  transform: translateY(0);
}
/* 認証コード画面の補助操作（再送・やり直し） */
.login-form__secondary {
  margin-top: 28px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.login-btn--subtle {
  width: auto;
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 500;
  color: #6b6f8a;
  background: transparent;
  border: 1px solid #d5d7e3;
  border-radius: 999px;
}

.login-btn--subtle:hover {
  background: #f3f4f8;
  color: #4e5270;
}

.login-form__secondary-link {
  font-size: 13px;
  color: #8a8da3;
  text-decoration: underline;
}