/* ダッシュボード共通スタイル */
:root {
  --primary-color: #4a6bff;
  --primary-hover: #3a5bee;
  --secondary-color: #f8f9fa;
  --text-color: #333;
  --text-light: #666;
  --border-color: #e0e0e0;
  --card-bg: #fff;
  --hover-bg: #f5f8ff;
  --sidebar-bg: #f0f2f5;
  --success-color: #28a745;
  --warning-color: #ffc107;
  --danger-color: #dc3545;
  --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

/* ダークテーマ変数 */
[data-theme="dark"] {
  --primary-color: #5c79ff;
  --primary-hover: #4a6bff;
  --secondary-color: #2d3748;
  --text-color: #e2e8f0;
  --text-light: #a0aec0;
  --border-color: #4a5568;
  --card-bg: #1a202c;
  --hover-bg: #2d3748;
  --sidebar-bg: #171923;
  --shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

body {
  font-family: 'Noto Sans Japanese', sans-serif;
  margin: 0;
  padding: 0;
  color: var(--text-color);
  background-color: var(--secondary-color);
}

.dashboard-container {
  display: flex;
  min-height: calc(100vh - 60px);
}

/* サイドバースタイル */
.dashboard-sidebar {
  width: 240px;
  background-color: var(--sidebar-bg);
  padding: 20px 0;
  box-shadow: var(--shadow);
  transition: all 0.3s ease;
}

.user-info {
  padding: 0 20px 20px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
}

.user-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  overflow: hidden;
  margin-right: 10px;
}

.user-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.user-name {
  font-weight: 500;
}

.sidebar-nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.sidebar-nav li {
  padding: 12px 20px;
  cursor: pointer;
  transition: background-color 0.2s;
  display: flex;
  align-items: center;
}

.sidebar-nav li:hover {
  background-color: var(--hover-bg);
}

.sidebar-nav li.active {
  background-color: var(--primary-color);
  color: white;
}

/* メインコンテンツエリア */
.dashboard-main {
  flex: 1;
  padding: 20px;
  overflow-y: auto;
}

.dashboard-view {
  display: none;
}

.dashboard-view.active {
  display: block;
}

/* ウィジェットスタイル */
.widget-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  grid-gap: 20px;
  margin-top: 20px;
}

.widget {
  background-color: var(--card-bg);
  border-radius: 8px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.widget-header {
  padding: 15px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
}

.widget-header h3 {
  margin: 0;
  font-size: 16px;
}

.widget-controls {
  display: flex;
  gap: 10px;
}

.widget-move {
  cursor: move;
  font-size: 18px;
  color: var(--text-light);
}

.widget-body {
  padding: 20px;
}

.stat-large {
  font-size: 36px;
  font-weight: 700;
  text-align: center;
  color: var(--primary-color);
}

.recent-problems-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.recent-problems-list li {
  padding: 10px 0;
  border-bottom: 1px solid var(--border-color);
}

.recent-problems-list li:last-child {
  border-bottom: none;
}

.no-data {
  color: var(--text-light);
  text-align: center;
  font-style: italic;
}

/* 問題一覧テーブル */
.problems-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.problem-actions {
  display: flex;
  gap: 10px;
}

.search-input {
  padding: 8px 12px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  width: 200px;
}

.filter-button {
  padding: 8px 16px;
  background-color: var(--secondary-color);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  cursor: pointer;
}

.filter-options {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  padding: 10px;
  border-radius: 4px;
  margin-bottom: 15px;
  display: flex;
  gap: 15px;
  align-items: center;
}

.apply-button {
  padding: 5px 10px;
  background-color: var(--primary-color);
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

.problems-table-container {
  overflow-x: auto;
  background-color: var(--card-bg);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.problems-table {
  width: 100%;
  border-collapse: collapse;
}

.problems-table th,
.problems-table td {
  padding: 12px 15px;
  text-align: left;
}

.problems-table th {
  background-color: var(--secondary-color);
  color: var(--text-color);
  font-weight: 500;
  border-bottom: 1px solid var(--border-color);
}

.problems-table th.sortable {
  cursor: pointer;
  position: relative;
}

.problems-table th.sortable:hover {
  background-color: var(--hover-bg);
}

.sort-icon {
  margin-left: 5px;
  font-size: 12px;
}

.problems-table tbody tr {
  border-bottom: 1px solid var(--border-color);
  transition: background-color 0.2s;
}

.problems-table tbody tr:last-child {
  border-bottom: none;
}

.problems-table tbody tr:hover {
  background-color: var(--hover-bg);
}

/* 問題名編集のためのスタイル */
.problem-name-cell {
  position: relative;
}

.editable-name {
  display: inline-block;
  padding: 2px 4px;
  border-bottom: 1px dashed transparent;
  cursor: pointer;
  transition: all 0.2s ease;
}

.editable-name:hover {
  border-bottom-color: var(--primary-color);
}

.name-edit-input {
  width: 100%;
  padding: 2px 4px;
  border: 1px solid var(--primary-color);
  border-radius: 4px;
  font-size: inherit;
  font-family: inherit;
  background-color: var(--card-bg);
  color: var(--text-color);
}

.name-edit-input:focus {
  outline: none;
  box-shadow: 0 0 0 2px rgba(74, 107, 255, 0.3);
}

.action-buttons {
  display: flex;
  gap: 5px;
}

.action-button {
  padding: 4px 8px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 12px;
  transition: background-color 0.2s;
}

.preview-button {
  background-color: var(--primary-color);
  color: white;
}

.edit-button {
  background-color: var(--warning-color);
  color: #333;
}

.duplicate-button {
  background-color: var(--success-color);
  color: white;
}

.delete-button {
  background-color: var(--danger-color);
  color: white;
}

.visibility-toggle {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 18px;
}

/* 問題プレビュー */
.problem-preview {
  background-color: var(--card-bg);
  border-radius: 8px;
  box-shadow: var(--shadow);
  margin-top: 20px;
  overflow: hidden;
}

.preview-header {
  padding: 15px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
}

.preview-header h3 {
  margin: 0;
}

.close-preview {
  background: none;
  border: none;
  font-size: 20px;
  cursor: pointer;
  color: var(--text-color);
}

.preview-content {
  padding: 15px;
}

#preview-problem-name {
  font-weight: 500;
  margin-bottom: 15px;
}

.problem-items {
  max-height: 300px;
  overflow-y: auto;
}

.problem-item {
  padding: 10px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  margin-bottom: 10px;
}

.problem-question {
  font-weight: 500;
  margin-bottom: 5px;
}

.problem-answer {
  color: var(--text-light);
}

/* 統計ビュー */
.stats-container {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-gap: 20px;
}

.stats-widget {
  background-color: var(--card-bg);
  border-radius: 8px;
  box-shadow: var(--shadow);
  padding: 20px;
  height: 400px;
}

.stats-widget canvas {
  max-height: 320px;
}

.stats-widget h3 {
  margin-top: 0;
  margin-bottom: 15px;
}

.stats-widget.full-width {
  grid-column: 1 / -1;
}

.stats-table-container {
  overflow-x: auto;
  max-height: 400px;
  overflow-y: auto;
}

.stats-table {
  width: 100%;
  border-collapse: collapse;
}

.stats-table th,
.stats-table td {
  padding: 10px 15px;
  text-align: left;
}

.stats-table th {
  background-color: var(--secondary-color);
  position: sticky;
  top: 0;
}

/* 設定ビュー */
.settings-container {
  max-width: 600px;
  margin: 0 auto;
}

.settings-section {
  background-color: var(--card-bg);
  border-radius: 8px;
  box-shadow: var(--shadow);
  padding: 20px;
  margin-bottom: 20px;
}

.settings-section h3 {
  margin-top: 0;
  margin-bottom: 15px;
}

.settings-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-gap: 15px;
}

.settings-option {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.theme-options {
  display: flex;
  gap: 20px;
}

.theme-option {
  text-align: center;
  cursor: pointer;
}

.theme-preview {
  width: 100px;
  height: 60px;
  border-radius: 8px;
  margin-bottom: 5px;
}

.light-theme {
  background-color: #f8f9fa;
  border: 1px solid #e0e0e0;
}

.dark-theme {
  background-color: #1a202c;
  border: 1px solid #4a5568;
}

.theme-option.active .theme-preview {
  outline: 2px solid var(--primary-color);
}

.save-settings-btn {
  background-color: var(--primary-color);
  color: white;
  padding: 10px 20px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 0.2s;
  margin-top: 10px;
}

.save-settings-btn:hover {
  background-color: var(--primary-hover);
}

/* モーダルスタイル */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1000;
}

.modal.active {
  display: block;
}

.modal-overlay {
  position: absolute;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
}

.modal-container {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background-color: var(--card-bg);
  border-radius: 8px;
  width: 90%;
  max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow);
}

.small-modal {
  max-width: 400px;
}

.modal-header {
  padding: 15px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
  margin: 0;
  font-size: 18px;
}

.modal-close {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--text-color);
}

.modal-body {
  padding: 15px;
}

.form-group {
  margin-bottom: 15px;
}

.form-group label {
  display: block;
  margin-bottom: 5px;
  font-weight: 500;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 8px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background-color: var(--card-bg);
  color: var(--text-color);
}

.edit-problem-items {
  margin: 10px 0;
  max-height: 300px;
  overflow-y: auto;
  border: 1px solid var(--border-color);
  padding: 10px;
  border-radius: 4px;
}

.edit-problem-item {
  display: flex;
  margin-bottom: 10px;
  gap: 10px;
}

.edit-problem-item input {
  flex: 1;
}

.edit-problem-item button {
  background-color: var(--danger-color);
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  padding: 0 8px;
}

.add-problem-item {
  background-color: var(--success-color);
  color: white;
  padding: 5px 10px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  margin-top: 10px;
}

.modal-footer {
  padding: 15px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

.modal-cancel {
  padding: 8px 16px;
  background-color: var(--secondary-color);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  cursor: pointer;
}

.modal-save {
  padding: 8px 16px;
  background-color: var(--primary-color);
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

.modal-delete {
  padding: 8px 16px;
  background-color: var(--danger-color);
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}

/* トースト通知 */
.toast-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 1001;
}

.toast {
  background-color: var(--primary-color);
  color: white;
  padding: 12px 20px;
  border-radius: 4px;
  margin-top: 10px;
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(20px);
  animation: toast-in-out 3s ease forwards;
}

.toast.error {
  background-color: var(--danger-color);
}

.toast.success {
  background-color: var(--success-color);
}

@keyframes toast-in-out {
  0% {
    opacity: 0;
    transform: translateY(20px);
  }
  10% {
    opacity: 1;
    transform: translateY(0);
  }
  90% {
    opacity: 1;
    transform: translateY(0);
  }
  100% {
    opacity: 0;
    transform: translateY(-20px);
  }
}

/* レスポンシブデザイン */
@media (max-width: 1025px) {
  .dashboard-sidebar {
    width: 180px ;
  }
  .stats-container {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .dashboard-container {
    flex-direction: column;
  }
  
  .dashboard-sidebar {
    width: 100%;
    padding: 10px 0;
  }
  
  .sidebar-nav ul {
    display: flex;
    overflow-x: auto;
  }
  
  .sidebar-nav li {
    padding: 10px;
    white-space: nowrap;
  }
  
  .user-info {
    display: none;
  }
  
  .widget-container {
    grid-template-columns: 1fr;
  }
  
  .settings-options {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 576px) {
  .problems-header {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .problem-actions {
    width: 100%;
    margin-top: 10px;
  }
  
  .search-input {
    flex: 1;
  }
  
  .action-buttons {
    flex-direction: column;
  }
  
  .modal-container {
    width: 95%;
  }
}

/* アクセシビリティ向上 */
button:focus,
input:focus,
select:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* テーブル行のホバー効果 */
.problems-table tbody tr:hover,
.stats-table tbody tr:hover {
  background-color: var(--hover-bg);
}