* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Noto Sans JP", "Noto Sans", sans-serif;
  margin: 0;
  padding: 0;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 20px;
  height: 100px;
  border-bottom: 1px solid #ddd;
  box-sizing: border-box;
}

.logo {
  height: 100px;
  font-size: 24px;
  font-weight: bold;
  transition: transform 0.3s ease;
}

.logo img {
  height: 120%;
  width: auto;
  margin-top: 20px;
}

.logo:hover {
  transform: scale(1.02);
}

.page-container {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.content-area {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: -100px;
}

/* ログインエリアのカードスタイル */
.auth-container {
  width: 500px;
  max-width: 95vw;
  padding: 0;
  margin: 0 0 80px;
  border-radius: 15px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  background: white;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  overflow: hidden;
}

.auth-container:hover {
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

/* ヘッダー部分 */
.auth-header {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 25px 30px;
  border-bottom: none;
}

.auth-title {
  font-size: 1.8rem;
  color: white;
  margin: 0;
  text-align: center;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.auth-subtitle {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.9);
  margin: 8px 0 0 0;
  text-align: center;
  line-height: 1.5;
  font-weight: 400;
}

/* コンテンツエリア */
.auth-content {
  padding: 30px;
}

/* ログインフォームセクション */
.login-form-section {
  margin-bottom: 20px;
}

.login-form-title {
  font-size: 1.5rem;
  color: #2c3e50;
  margin-bottom: 25px;
  text-align: center;
  font-weight: 600;
}

.input-group {
  margin-bottom: 20px;
  position: relative;
}

.input-group label {
  display: block;
  margin-bottom: 8px;
  color: #34495e;
  font-weight: 500;
  font-size: 14px;
}

.input-group input {
  width: 100%;
  padding: 15px;
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  font-size: 16px;
  transition: all 0.3s ease;
  background: #fff;
}

.input-group input:hover {
  border-color: #bdc3c7;
}

.input-group input:focus {
  border-color: #3498db;
  outline: none;
  box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
}

.password-input-wrapper {
  position: relative;
}

.password-toggle {
  position: absolute;
  right: 15px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  color: #7f8c8d;
  font-size: 16px;
  padding: 5px;
  transition: color 0.3s ease;
}

.password-toggle:hover {
  color: #34495e;
}

.error-message {
  color: #e74c3c;
  font-size: 12px;
  margin-top: 5px;
  display: none;
}

.input-group.error .error-message {
  display: block;
}

.submit-btn {
  background: #3498db;
  color: white;
  padding: 15px 20px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  width: 100%;
  margin-top: 15px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.submit-btn:hover:not(:disabled) {
  background: #2980b9;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(52, 152, 219, 0.3);
}

.submit-btn:active:not(:disabled) {
  transform: translateY(1px);
  box-shadow: none;
}

.submit-btn:disabled {
  background: #bdc3c7;
  cursor: not-allowed;
  transform: none;
}

/* パスワード設定リンク */
/* .password-reset {
  text-align: center;
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid #e9ecef;
}

.password-reset button {
  background: none;
  border: none;
  color: #3498db;
  text-decoration: underline;
  cursor: pointer;
  font-size: 14px;
  padding: 8px 12px;
  border-radius: 4px;
  transition: all 0.3s ease;
}

.password-reset button:hover {
  background: rgba(52, 152, 219, 0.1);
  color: #2980b9;
  text-decoration: none;
} */

.alert {
  padding: 15px;
  border-radius: 8px;
  margin-bottom: 20px;
  font-size: 14px;
  display: none;
}

.alert-success {
  background: #d4edda;
  color: #155724;
  border: 1px solid #c3e6cb;
}

.alert-error {
  background: #f8d7da;
  color: #721c24;
  border: 1px solid #f5c6cb;
}

.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid #ffffff40;
  border-top: 2px solid #ffffff;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

/* 言語切替ボタン */
.lang-switcher {
  position: fixed;
  top: 20px;
  right: 20px;
  background: white;
  border-radius: 25px;
  padding: 5px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  z-index: 1000;
}

.lang-btn {
  background: none;
  border: none;
  padding: 8px 15px;
  border-radius: 20px;
  cursor: pointer;
  font-size: 12px;
  transition: all 0.3s ease;
  color: #7f8c8d;
}

.lang-btn.active {
  background: #3498db;
  color: white;
}

/* モーダルスタイル */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 2000;
  display: none;
  justify-content: center;
  align-items: center;
  overflow-y: auto;
  padding: 20px;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.modal-overlay.show {
  display: flex !important;
  opacity: 1;
}

.modal-content {
  background: white;
  border-radius: 15px;
  width: 90%;
  max-width: 500px;
  display: flex;
  flex-direction: column;
  position: relative;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  overflow: hidden;
  transform: scale(0.9);
  transition: transform 0.3s ease;
}

.modal-overlay.show .modal-content {
  transform: scale(1);
}

.modal-header {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 20px 25px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-title {
  font-size: 1.3rem;
  font-weight: 600;
  margin: 0;
}

.close-btn {
  background: none;
  border: none;
  color: white;
  cursor: pointer;
  font-size: 18px;
  padding: 5px;
  border-radius: 4px;
  transition: all 0.3s ease;
}

.close-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: rotate(90deg);
}

.modal-body {
  padding: 25px;
}

/* ログアウト通知 */
.logout-notification {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1001;
  animation: slideDown 0.5s ease-out;
}

.logout-message {
  background: #d4edda;
  color: #155724;
  border: 1px solid #c3e6cb;
  border-radius: 8px;
  padding: 12px 20px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
}

/* 背景画像 */
.background-image {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-image: url('../image-data/bgphoto.jpg');
  background-size: cover;
  background-position: left top;
  opacity: 0.3;
  z-index: -1;
}

/* アニメーション */
@keyframes spin {
  0% {
    transform: rotate(0deg);
  }

  100% {
    transform: rotate(360deg);
  }
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(-20px);
  }

  to {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}

@keyframes slideUp {
  from {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }

  to {
    opacity: 0;
    transform: translateX(-50%) translateY(-20px);
  }
}

/* レスポンシブ対応 */
@media (max-width: 960px) {
  .auth-container {
    width: calc(100% - 40px);
    margin: 0 20px 40px;
  }
}

@media (max-width: 768px) {
  .auth-container {
    width: calc(100% - 20px);
    margin: 0 10px 40px;
  }

  .auth-header {
    padding: 20px 25px;
  }

  .auth-content {
    padding: 25px;
  }

  .auth-title {
    font-size: 1.5rem;
  }

  .modal-content {
    width: calc(100% - 20px);
    max-width: 450px;
  }

  .modal-body {
    padding: 20px;
  }
}

@media (max-width: 480px) {
  header {
    height: auto;
    padding: 15px 20px;
  }

  .logo img {
    height: 80px;
    margin-top: 10px;
  }

  .auth-container {
    width: calc(100% - 20px);
    margin: 0 10px 40px;
  }

  .auth-header {
    padding: 20px;
  }

  .auth-content {
    padding: 20px;
  }

  .auth-title {
    font-size: 1.3rem;
    flex-direction: column;
    gap: 8px;
  }

  .auth-subtitle {
    font-size: 0.9rem;
  }

  .login-form-title {
    font-size: 1.2rem;
  }

  .input-group input {
    padding: 12px;
    font-size: 14px;
  }

  .submit-btn {
    padding: 12px 16px;
    font-size: 14px;
  }

  .modal-content {
    width: calc(100% - 10px);
  }

  .modal-header {
    padding: 15px 20px;
  }

  .modal-title {
    font-size: 1.1rem;
  }

  .modal-body {
    padding: 15px 20px 20px;
  }

  .lang-switcher {
    top: 15px;
    right: 15px;
  }

  .lang-btn {
    padding: 6px 12px;
    font-size: 11px;
  }
}