/* ===== 認証系共通レイアウト ===== */

.auth-page {
  background: #f5f5f5;
}

/* 中央寄せカード */
.auth-container {
  max-width: 420px;
  margin: 2.5rem auto 5rem;
  padding: 2rem 1.75rem;
  background: #ffffff;
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  box-sizing: border-box;
}

.auth-title {
  font-size: 1.4rem;
  margin-top: 0;
  margin-bottom: 1.5rem;
  text-align: center;
}

/* メッセージ */
.auth-message {
  font-size: 0.9rem;
  margin-bottom: 1rem;
  padding: 0.75rem 1rem;
  border-radius: 8px;
}

.auth-message.error {
  background: #ffe5e5;
  color: #b00020;
}

.auth-message.success {
  background: #e2f6ea;
  color: #0a8a4a;
}

/* フォーム */
.auth-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.auth-field label {
  display: block;
  font-weight: bold;
  font-size: 0.9rem;
  margin-bottom: 0.25rem;
}

.auth-field input {
  width: 100%;
  padding: 0.55rem 0.75rem;
  border-radius: 6px;
  border: 1px solid #ccc;
  font-size: 0.95rem;
  box-sizing: border-box;
}

.auth-note {
  display: block;
  margin-top: 0.3rem;
  font-size: 0.75rem;
  color: #777;
}

/* 送信ボタン */
.auth-submit {
  width: 100%;
  padding: 0.7rem 1rem;
  border: none;
  border-radius: 999px;
  background: #2020aa;
  color: #fff;
  font-weight: bold;
  font-size: 1rem;
  cursor: pointer;
  margin-top: 0.5rem;
  transition: background 0.2s ease-in-out;
}

.auth-submit:hover {
  background: #3030cc;
}

/* ログイン／登録切り替えリンク */
.auth-link {
  margin-top: 1.2rem;
  text-align: center;
  font-size: 0.9rem;
}

.auth-link a {
  color: #2020aa;
  text-decoration: none;
  font-weight: bold;
}

.auth-link a:hover {
  text-decoration: underline;
}

/* モバイル調整 */
@media (max-width: 480px) {
  .auth-container {
    margin: 1.5rem 1rem 4.5rem;
    padding: 1.5rem 1.25rem;
  }
}