/* ログインページ専用（クラスでスコープを制限） */
.login-page {
  display: flex;
  flex-direction: column;
}

.login-page h1 {
  font-size: 1.8rem;
  margin-bottom: 1.5rem;
}

.login-page form {
  background: #fff;
  border: 1px solid #ddd;
  padding: 2rem;
  border-radius: 8px;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
  align-self: center;
}

.login-page form div {
  margin-bottom: 1rem;
}

.login-page label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: bold;
}

.login-page input[type="text"],
.login-page input[type="password"] {
  width: 95%;
  padding: 0.6rem;
  border: 1px solid #ccc;
  border-radius: 4px;
}

.login-page button[type="submit"] {
  width: 100%;
  padding: 0.8rem;
  background-color: #007bff;
  color: white;
  border: none;
  border-radius: 4px;
  font-weight: bold;
  cursor: pointer;
  transition: background-color 0.2s;
}

.login-page button[type="submit"]:hover {
  background-color: #0056b3;
}

.login-page p {
  margin-top: 1.2rem;
  text-align: center;
}

.login-page .error {
  color: red;
  margin-bottom: 1rem;
  text-align: center;
}

.login-page .message {
  color: green;
  margin-bottom: 1rem;
  text-align: center;
}

/* モバイル対応（768px以下） */
@media (max-width: 768px) {
  .login-page h1 {
    font-size: 1.5rem;
  }

  .login-page form {
    padding: 1.2rem;
  }
}

/* auth-page: ログイン/登録ページ共通 */

.auth-page {
  display: flex;
  flex-direction: column;
}

.auth-page h1 {
  font-size: 1.8rem;
  margin-bottom: 1.5rem;
}

.auth-page form {
  background: #fff;
  border: 1px solid #ddd;
  padding: 2rem;
  border-radius: 8px;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
  align-self: center;
}

.auth-page form div {
  margin-bottom: 1rem;
}

.auth-page label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: bold;
}

.auth-page input[type="text"],
.auth-page input[type="email"],
.auth-page input[type="password"] {
  width: 95%;
  padding: 0.6rem;
  border: 1px solid #ccc;
  border-radius: 4px;
}

.auth-page button[type="submit"] {
  width: 100%;
  padding: 0.8rem;
  background-color: #28a745;
  color: white;
  border: none;
  border-radius: 4px;
  font-weight: bold;
  cursor: pointer;
  transition: background-color 0.2s;
}

.auth-page button[type="submit"]:hover {
  background-color: #218838;
}

.auth-page p {
  margin-top: 1.2rem;
  text-align: center;
}

.auth-page .error {
  color: red;
  margin-bottom: 1rem;
  text-align: center;
}

.auth-page .message {
  color: green;
  margin-bottom: 1rem;
  text-align: center;
}

@media (max-width: 768px) {
  .auth-page h1 {
    font-size: 1.5rem;
  }

  .auth-page form {
    padding: 1.2rem;
  }
}