:root {
  --purple-900: #6b5637;
  --purple-800: #8a7052;
  --purple-700: #9c8563;
  --purple-600: #ab9573;
  --purple-500: #b09b7a;
  --purple-400: #c9b896;
  --purple-200: #ede4d3;
  --purple-100: #f5efe3;
  --purple-50: #faf7f0;
  --text-dark: #5c4a32;
  --danger: #e11d48;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Hiragino Sans", "Yu Gothic UI", "Segoe UI", sans-serif;
  background: linear-gradient(180deg, var(--purple-50) 0%, #ffffff 60%);
  color: var(--text-dark);
}

.app-header {
  background: linear-gradient(90deg, var(--purple-800), var(--purple-500));
  color: #fff;
  padding: 20px 24px;
  box-shadow: 0 2px 8px rgba(107, 86, 55, 0.35);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}

.app-header h1 {
  margin: 0;
  font-size: 1.6rem;
}

.top-nav {
  display: flex;
  gap: 8px;
}

.nav-link {
  color: #fff;
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  padding: 8px 16px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.5);
  background: rgba(255, 255, 255, 0.12);
}

.nav-link:hover {
  background: rgba(255, 255, 255, 0.25);
}

.nav-link.active {
  background: #fff;
  color: var(--purple-800);
  border-color: #fff;
}

.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 24px 16px 60px;
}

.search-bar {
  margin-bottom: 20px;
}

.search-bar input {
  width: 100%;
  border: 1px solid var(--purple-200);
  border-radius: 10px;
  padding: 12px 16px;
  font-size: 1rem;
  font-family: inherit;
  background: #fff;
  box-shadow: 0 4px 10px rgba(138, 112, 82, 0.06);
}

.search-bar input:focus {
  outline: none;
  border-color: var(--purple-500);
  box-shadow: 0 0 0 3px var(--purple-100);
}

/* ダッシュボード */
.dashboard {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}

.stat-card {
  background: #fff;
  border: 1px solid var(--purple-200);
  border-radius: 14px;
  padding: 18px;
  text-align: center;
  box-shadow: 0 4px 10px rgba(138, 112, 82, 0.08);
}

.stat-value {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--purple-700);
}

.stat-label {
  margin-top: 4px;
  font-size: 0.9rem;
  color: var(--purple-800);
  opacity: 0.8;
}

/* 3カラムレイアウト */
.columns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

@media (max-width: 960px) {
  .columns {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .columns {
    grid-template-columns: 1fr;
  }
}

.panel {
  background: #fff;
  border: 1px solid var(--purple-200);
  border-radius: 14px;
  padding: 18px;
  box-shadow: 0 4px 10px rgba(138, 112, 82, 0.06);
}

.panel h2 {
  margin-top: 0;
  color: var(--purple-800);
  font-size: 1.15rem;
}

.news-panel {
  margin-top: 20px;
}

.panel-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}

.panel-header-row h2 {
  margin: 0;
}

.news-meta {
  font-size: 0.8rem;
  color: var(--purple-500);
  margin: 8px 0 14px;
}

.news-title {
  color: var(--purple-800);
  font-weight: 600;
  text-decoration: none;
}

.news-title:hover {
  text-decoration: underline;
}

.news-list {
  max-height: none;
}

/* フォーム */
.add-form {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.add-form input,
.add-form textarea,
.add-form select {
  border: 1px solid var(--purple-200);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 0.95rem;
  font-family: inherit;
  resize: vertical;
  background: #fff;
}

.add-form input:focus,
.add-form textarea:focus,
.add-form select:focus {
  outline: none;
  border-color: var(--purple-500);
  box-shadow: 0 0 0 3px var(--purple-100);
}

.form-row {
  display: flex;
  gap: 8px;
}

.form-row input {
  flex: 1;
  min-width: 0;
}

.add-form button {
  align-self: flex-start;
  background: linear-gradient(90deg, var(--purple-600), var(--purple-500));
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 10px 18px;
  font-size: 0.95rem;
  cursor: pointer;
  transition: transform 0.1s ease, box-shadow 0.1s ease;
}

.add-form button:hover {
  box-shadow: 0 4px 12px rgba(138, 112, 82, 0.35);
  transform: translateY(-1px);
}

/* 一覧 */
.item-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: 480px;
  overflow-y: auto;
}

.item-card {
  border: 1px solid var(--purple-100);
  background: var(--purple-50);
  border-radius: 10px;
  padding: 10px 14px;
}

.item-card .item-title {
  font-weight: 600;
  color: var(--purple-800);
  margin-bottom: 4px;
}

.item-card .item-body {
  white-space: pre-wrap;
  font-size: 0.92rem;
  color: var(--text-dark);
}

.item-card .item-meta {
  margin-top: 6px;
  font-size: 0.78rem;
  color: var(--purple-500);
}

.empty-msg {
  color: #9083b0;
  font-size: 0.9rem;
  padding: 8px 0;
}

.note-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.note-header .item-title {
  margin-bottom: 0;
}

.note-delete-btn {
  flex-shrink: 0;
}

/* タスク */
.task-card {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.task-card.completed .task-text {
  text-decoration: line-through;
  color: #9083b0;
}

.task-card input[type="checkbox"] {
  margin-top: 3px;
  width: 18px;
  height: 18px;
  accent-color: var(--purple-600);
  cursor: pointer;
}

.task-content {
  flex: 1;
}

.task-text {
  font-size: 0.95rem;
  color: var(--text-dark);
}

.task-actions {
  display: flex;
  align-items: center;
}

.delete-btn {
  background: transparent;
  border: 1px solid var(--danger);
  color: var(--danger);
  border-radius: 6px;
  padding: 4px 10px;
  font-size: 0.8rem;
  cursor: pointer;
}

.delete-btn:hover {
  background: var(--danger);
  color: #fff;
}

.badge {
  display: inline-block;
  font-size: 0.72rem;
  padding: 2px 8px;
  border-radius: 999px;
  margin-left: 6px;
}

.badge.done {
  background: var(--purple-200);
  color: var(--purple-800);
}

.badge.pending {
  background: #fff3cd;
  color: #92700c;
}

/* 案件 */
.case-card {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.case-card input[type="checkbox"] {
  margin-top: 3px;
  width: 18px;
  height: 18px;
  accent-color: var(--purple-600);
  cursor: pointer;
}

.case-card.completed .item-title {
  text-decoration: line-through;
  color: #9083b0;
}

.case-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.edit-btn {
  background: transparent;
  border: 1px solid var(--purple-600);
  color: var(--purple-700);
  border-radius: 6px;
  padding: 4px 10px;
  font-size: 0.8rem;
  cursor: pointer;
}

.edit-btn:hover {
  background: var(--purple-600);
  color: #fff;
}

.case-edit-form {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
}

.case-edit-form input,
.case-edit-form textarea {
  border: 1px solid var(--purple-200);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 0.92rem;
  font-family: inherit;
  resize: vertical;
}

.case-edit-actions {
  display: flex;
  gap: 8px;
}

.case-save-btn {
  background: linear-gradient(90deg, var(--purple-600), var(--purple-500));
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 6px 14px;
  font-size: 0.85rem;
  cursor: pointer;
}

.case-cancel-btn {
  background: transparent;
  border: 1px solid var(--purple-400);
  color: var(--text-dark);
  border-radius: 6px;
  padding: 6px 14px;
  font-size: 0.85rem;
  cursor: pointer;
}

/* タグ */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: 6px;
}

.badge.tag {
  margin-left: 0;
  background: var(--purple-100);
  color: var(--purple-700);
  border: 1px solid var(--purple-200);
}

/* 期限 */
.due-normal,
.due-plain {
  color: var(--purple-500);
}

.due-soon {
  color: #b45309;
  font-weight: 600;
}

.due-overdue {
  color: var(--danger);
  font-weight: 600;
}

/* 関連タスク */
.linked-tasks {
  margin-top: 10px;
  padding-top: 8px;
  border-top: 1px dashed var(--purple-200);
}

.linked-tasks-title {
  font-size: 0.78rem;
  color: var(--purple-700);
  font-weight: 600;
  margin-bottom: 4px;
}

.linked-task-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.linked-task-list li {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
}

.linked-task-list input[type="checkbox"] {
  accent-color: var(--purple-600);
  cursor: pointer;
}

.linked-task-done {
  text-decoration: line-through;
  color: #9083b0;
}