/* ベース設定 */
:root {
  /* カラーパレット - ライトモード (Discord風) */
  --primary-color: #5865F2;
  --primary-dark: #4752C4;
  --primary-light: #E8E9FD;
  --primary-gradient: linear-gradient(135deg, #5865F2 0%, #4752C4 100%);
  --secondary-color: #2E3267;
  --secondary-light: #E9E4F9;
  --success-color: #3BA55C;
  --success-light: #ECFDF3;
  --warning-color: #FAA61A;
  --warning-light: #FFF5E9;
  --danger-color: #ED4245;
  --danger-light: #FDECEC;
  --info-color: #3E93EC;
  --info-light: #ECF4FD;
  --dark-color: #23272A;
  --text-color: #2E3338;
  --text-secondary: #747F8D;
  --text-light: #96989D;
  --text-muted: #B9BBBE;
  --bg-color: #F2F3F5;
  --bg-light: #FFFFFF;
  --bg-dark: #EBEDEF;
  --sidebar-bg: #FFFFFF;
  --card-bg: #FFFFFF;
  --border-color: #DCDDDE;
  --border-light: #EBEDEF;
  
  /* 効果 */
  --shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.08);
  --shadow-hover: 0 8px 16px rgba(88, 101, 242, 0.1);
  --radius-sm: 4px;
  --radius: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  
  /* レイアウト */
  --sidebar-width: 260px;
  --sidebar-collapsed-width: 70px;
  --header-height: 64px;
  --container-padding: 30px;
  
  /* アニメーション */
  --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  --transition-slow: all 0.5s cubic-bezier(0.25, 0.8, 0.25, 1);
  --transition-fast: all 0.15s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

body {
  font-family: 'Hiragino Sans', 'Hiragino Kaku Gothic ProN', Meiryo, sans-serif;
  color: var(--text-color);
  background-color: var(--bg-color);
  font-size: 14px;
  line-height: 1.5;
}

ul {
  list-style: none;
}

a {
  text-decoration: none;
  color: inherit;
}

button {
  cursor: pointer;
  background: none;
  border: none;
  outline: none;
}

/* アプリレイアウト */
.app-container {
  display: flex;
  min-height: 100vh;
}

/* サイドバー */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  width: var(--sidebar-width);
  background-color: var(--sidebar-bg);
  border-right: 1px solid var(--border-color);
  transition: var(--transition);
  z-index: 1000;
  overflow: hidden;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
}

.sidebar.collapsed {
  width: var(--sidebar-collapsed-width);
}

.sidebar-header {
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  border-bottom: 1px solid var(--border-color);
}

.logo {
  height: 30px;
  transition: var(--transition);
}

.sidebar.collapsed .logo {
  display: none;
}

.collapse-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  color: var(--text-light);
  border-radius: 50%;
  transition: var(--transition);
}

.collapse-btn:hover {
  background-color: var(--primary-light);
  color: var(--primary-color);
}

.sidebar-nav {
  padding: 20px 0;
  flex: 1;
  overflow-y: auto;
}

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid var(--border-color);
  margin-top: auto;
}

.theme-switch {
  margin-bottom: 16px;
}

.theme-toggle-btn {
  display: flex;
  align-items: center;
  width: 100%;
  padding: 10px;
  border-radius: var(--radius);
  background-color: var(--bg-color);
  color: var(--text-color);
  transition: var(--transition);
}

.theme-toggle-btn i {
  margin-right: 12px;
}

.theme-toggle-btn:hover {
  background-color: var(--primary-light);
  color: var(--primary-color);
}

.sidebar-info {
  font-size: 12px;
  color: var(--text-light);
}

.sidebar-help {
  display: flex;
  align-items: center;
  margin-top: 8px;
  color: var(--primary-color);
}

.sidebar-help i {
  margin-right: 8px;
}

.sidebar-nav ul li {
  position: relative;
  margin-bottom: 8px;
  padding: 0 16px;
}

.sidebar-nav ul li a {
  display: flex;
  align-items: center;
  padding: 12px 15px;
  color: var(--text-color);
  transition: var(--transition);
  border-radius: var(--radius);
  position: relative;
  overflow: hidden;
}

.sidebar-nav ul li a::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 0;
  background: var(--primary-gradient);
  opacity: 0;
  transition: var(--transition);
  z-index: -1;
}

.sidebar-nav ul li a i {
  font-size: 20px;
  min-width: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.sidebar-nav ul li a span {
  margin-left: 10px;
  white-space: nowrap;
  opacity: 1;
  transition: var(--transition);
  font-weight: 500;
}

.sidebar.collapsed .sidebar-nav ul li a span {
  opacity: 0;
  width: 0;
}

.sidebar-nav ul li a:hover {
  background-color: var(--primary-light);
  color: var(--primary-color);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.sidebar-nav ul li.active a {
  background-color: var(--primary-light);
  color: var(--primary-color);
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}

.sidebar-nav ul li.active a::before {
  width: 4px;
  opacity: 1;
}

.sidebar-nav ul li a .menu-tooltip {
  position: absolute;
  left: 70px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--primary-gradient);
  color: white;
  padding: 6px 12px;
  border-radius: var(--radius);
  font-size: 12px;
  font-weight: 500;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  box-shadow: var(--shadow);
  z-index: 10;
  pointer-events: none;
}

.sidebar.collapsed .sidebar-nav ul li a:hover .menu-tooltip {
  opacity: 1;
  visibility: visible;
}

/* メインコンテンツ */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  margin-left: var(--sidebar-width);
  transition: var(--transition);
}

.sidebar.collapsed + .main-content {
  margin-left: var(--sidebar-collapsed-width);
}

/* トップヘッダー */
.top-header {
  position: sticky;
  top: 0;
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 30px;
  background-color: var(--card-bg);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow);
  z-index: 990;
  backdrop-filter: blur(10px);
  background-color: rgba(255, 255, 255, 0.95);
}

.header-left {
  display: flex;
  align-items: center;
}

.mobile-toggle-btn {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  color: var(--text-color);
  margin-right: 15px;
  transition: var(--transition);
}

.mobile-toggle-btn:hover {
  background-color: var(--primary-light);
  color: var(--primary-color);
}

.search-container {
  display: flex;
  align-items: center;
  background-color: var(--bg-color);
  border-radius: 20px;
  padding: 8px 15px;
  width: 300px;
}

.search-container i {
  color: var(--text-light);
  margin-right: 8px;
}

.search-input {
  border: none;
  background: none;
  outline: none;
  width: 100%;
  color: var(--text-color);
}

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

.header-btn {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  color: var(--text-light);
  margin-left: 5px;
  border-radius: 50%;
  transition: var(--transition);
}

.header-btn:hover {
  background-color: var(--primary-light);
  color: var(--primary-color);
}

.notification-badge {
  position: absolute;
  top: 5px;
  right: 5px;
  background-color: var(--danger-color);
  color: white;
  font-size: 10px;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.user-profile {
  display: flex;
  align-items: center;
  margin-left: 15px;
  padding: 5px 10px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: var(--transition);
}

.user-profile:hover {
  background-color: var(--primary-light);
}

.profile-img {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  object-fit: cover;
}

.user-info {
  margin: 0 10px;
  white-space: nowrap;
}

.user-name {
  font-weight: 600;
  font-size: 14px;
}

.user-role {
  font-size: 12px;
  color: var(--text-light);
}

/* ページコンテンツ */
.page-content {
  flex: 1;
  padding: 20px 30px 40px;
  overflow-y: auto;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 20px;
}

.page-title h1 {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 8px;
}

.page-title p {
  color: var(--text-light);
  max-width: 600px;
}

.page-actions {
  display: flex;
  gap: 12px;
}

/* ボタンスタイル */
.btn {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border-radius: var(--radius);
  font-weight: 600;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  cursor: pointer;
  transform: translateZ(0);
  white-space: nowrap;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(255, 255, 255, 0.1);
  transform: translateY(100%);
  transition: transform 0.3s cubic-bezier(0.65, 0, 0.35, 1);
  z-index: 1;
}

.btn:hover::before {
  transform: translateY(0);
}

.btn span, .btn i {
  position: relative;
  z-index: 2;
}

.primary-btn {
  background: var(--primary-gradient);
  color: white;
  box-shadow: 0 4px 12px rgba(88, 101, 242, 0.2);
}

.primary-btn:hover {
  box-shadow: 0 6px 16px rgba(88, 101, 242, 0.3);
  transform: translateY(-2px);
}

.primary-btn:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(88, 101, 242, 0.2);
}

.primary-btn:disabled {
  background: linear-gradient(135deg, #A0A6E5 0%, #9AA0E0 100%);
  cursor: not-allowed;
  box-shadow: none;
}

.primary-btn:disabled:hover {
  transform: none;
  box-shadow: none;
}

.secondary-btn {
  background-color: white;
  color: var(--text-color);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.secondary-btn:hover {
  background-color: var(--bg-color);
  border-color: var(--primary-color);
  color: var(--primary-color);
  transform: translateY(-2px);
}

.secondary-btn:active {
  transform: translateY(0);
}

.secondary-btn:disabled {
  color: var(--text-muted);
  background-color: var(--bg-light);
  border-color: var(--border-color);
  cursor: not-allowed;
}

.secondary-btn:disabled:hover {
  transform: none;
  border-color: var(--border-color);
  color: var(--text-muted);
}

.text-btn {
  color: var(--primary-color);
  padding: 6px 12px;
  background: transparent;
  position: relative;
}

.text-btn::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-color);
  transition: var(--transition);
}

.text-btn:hover {
  background-color: var(--primary-light);
}

.text-btn:hover::after {
  width: 100%;
}

.danger-btn {
  background-color: var(--danger-color);
  color: white;
  box-shadow: 0 4px 12px rgba(237, 66, 69, 0.2);
}

.danger-btn:hover {
  box-shadow: 0 6px 16px rgba(237, 66, 69, 0.3);
  transform: translateY(-2px);
}

.btn i {
  margin-right: 8px;
  font-size: 16px;
}

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

/* タブナビゲーション */
.tab-navigation {
  display: flex;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 24px;
  overflow-x: auto;
  white-space: nowrap;
  -ms-overflow-style: none; /* IE, Edge */
  scrollbar-width: none; /* Firefox */
}

.tab-navigation::-webkit-scrollbar {
  display: none; /* Chrome, Safari, Opera */
}

.tab-btn {
  padding: 12px 20px;
  font-weight: 600;
  color: var(--text-secondary);
  border-bottom: 2px solid transparent;
  transition: var(--transition);
  cursor: pointer;
  position: relative;
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
}

.tab-btn:hover {
  color: var(--primary-color);
}

.tab-btn.active {
  color: var(--primary-color);
  border-bottom-color: var(--primary-color);
}

.tab-btn.disabled {
  color: var(--text-light);
  cursor: not-allowed;
  opacity: 0.6;
  position: relative;
}

.tab-btn.disabled:hover {
  color: var(--text-light);
  background-color: transparent;
}

.coming-soon-badge {
  display: inline-block;
  margin-left: 8px;
  padding: 2px 8px;
  font-size: 11px;
  font-weight: 600;
  background-color: var(--warning-color);
  color: white;
  border-radius: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* タブコンテンツ */
.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
  animation: fadeIn 0.3s ease-in-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* KPIサマリーカード */
.kpi-summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-bottom: 24px;
}

.kpi-card {
  background-color: var(--card-bg);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow);
  padding: 20px;
  display: flex;
  align-items: center;
  position: relative;
  border: 1px solid var(--border-light);
  overflow: hidden;
  transition: var(--transition);
}

.kpi-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
}

.kpi-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary-color);
  font-size: 20px;
  margin-right: 16px;
  flex-shrink: 0;
}

.kpi-data {
  flex: 1;
}

.kpi-value {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--text-color);
}

.kpi-label {
  font-size: 13px;
  color: var(--text-secondary);
}

.kpi-trend {
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: 12px;
  font-weight: 600;
  display: flex;
  align-items: center;
}

.kpi-trend.positive {
  color: var(--success-color);
}

.kpi-trend.negative {
  color: var(--danger-color);
}

.kpi-trend i {
  margin-right: 4px;
}

/* 案件フィルター */
.deals-filters {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  background-color: var(--bg-light);
  padding: 16px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
}

.filter-group {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.filter-select {
  padding: 8px 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  background-color: var(--bg-light);
  color: var(--text-color);
  outline: none;
  min-width: 150px;
  transition: var(--transition);
}

.filter-select:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(88, 101, 242, 0.1);
}

.filter-select:disabled {
  background-color: var(--bg-dark);
  color: var(--text-secondary);
  cursor: not-allowed;
  opacity: 0.8;
  border-color: var(--border-light);
}

.filter-select:disabled:focus {
  border-color: var(--border-light);
  box-shadow: none;
}

.deal-search {
  width: 300px;
}

/* 案件リスト */
.deals-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 20px;
  margin-bottom: 30px;
}

.deal-card {
  background-color: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--border-light);
  overflow: hidden;
  transition: var(--transition);
}

.deal-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(88, 101, 242, 0.2);
}

.deal-status {
  padding: 10px 16px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--border-light);
}

.stage-indicator {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  margin-right: 8px;
}

.deal-status[data-stage="initial"] .stage-indicator {
  background-color: var(--info-color);
}

.deal-status[data-stage="meeting"] .stage-indicator {
  background-color: var(--primary-color);
}

.deal-status[data-stage="proposal"] .stage-indicator {
  background-color: var(--warning-color);
}

.deal-status[data-stage="negotiation"] .stage-indicator {
  background-color: #9C27B0; /* Purple */
}

.deal-status[data-stage="closed-won"] .stage-indicator {
  background-color: var(--success-color);
}

.deal-status[data-stage="closed-lost"] .stage-indicator {
  background-color: var(--danger-color);
}

.stage-text {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
}

.deal-header {
  padding: 16px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.deal-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-color);
  flex: 1;
}

.deal-description {
  padding: 0 16px;
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 12px;
}

.deal-info {
  padding: 0 16px 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.btn-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  color: var(--text-light);
}

.btn-icon:hover {
  background-color: var(--bg-hover);
  color: var(--primary-color);
}

.detail-label {
  background-color: var(--primary-light);
  color: var(--primary-color);
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
}

.deal-meta {
  display: flex;
  justify-content: space-between;
}

.deal-value {
  font-weight: 700;
  color: var(--text-color);
}

.deal-probability {
  color: var(--primary-color);
  font-weight: 600;
}

.deal-details {
  padding: 16px;
}

.detail-item {
  display: flex;
  align-items: center;
  margin-bottom: 8px;
  color: var(--text-secondary);
}

.detail-item:last-child {
  margin-bottom: 0;
}

.detail-item i {
  margin-right: 8px;
  color: var(--text-light);
  width: 16px;
  text-align: center;
}


/* ページネーション */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 5px;
}

.pagination-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius);
  color: var(--text-color);
  transition: var(--transition);
  font-weight: 500;
}

.pagination-btn:hover {
  background-color: var(--primary-light);
  color: var(--primary-color);
}

.pagination-btn.active {
  background: var(--primary-gradient);
  color: white;
  box-shadow: var(--shadow-sm);
}

.pagination-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.pagination-info {
  margin-left: 10px;
  color: var(--text-light);
  font-size: 13px;
}

/* 案件ボードスタイル */
.board-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.board-filters {
  display: flex;
  gap: 10px;
}

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

.kanban-board {
  display: flex;
  overflow-x: auto;
  padding-bottom: 20px;
  gap: 16px;
  min-height: calc(100vh - 300px);
}

.kanban-column {
  min-width: 280px;
  width: 280px;
  background-color: var(--bg-color);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
}

.column-header {
  padding: 15px;
  border-bottom: 1px solid var(--border-color);
  background-color: var(--bg-light);
  border-top-left-radius: var(--radius);
  border-top-right-radius: var(--radius);
  display: flex;
  align-items: center;
  position: relative;
}

.column-header h3 {
  font-size: 14px;
  font-weight: 600;
  margin-right: auto;
}

.deal-count {
  background-color: var(--primary-light);
  color: var(--primary-color);
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
  margin-right: 8px;
}

.deal-sum {
  font-size: 12px;
  color: var(--text-secondary);
  font-weight: 600;
}

.column-body {
  padding: 10px;
  flex: 1;
  overflow-y: auto;
  max-height: calc(100vh - 200px);
}

.kanban-card {
  background-color: var(--card-bg);
  border-radius: var(--radius);
  padding: 12px;
  margin-bottom: 10px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  cursor: grab;
  transition: var(--transition);
}

.kanban-card:last-child {
  margin-bottom: 0;
}

.kanban-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
  border-color: var(--primary-color);
}

.kanban-card:active {
  cursor: grabbing;
}

.card-company {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 8px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-info {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
}

.card-amount {
  font-weight: 700;
  font-size: 13px;
}

.card-probability {
  font-size: 12px;
  font-weight: 600;
  color: var(--primary-color);
}

.card-footer {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-secondary);
}

.card-assignee, .card-date {
  display: flex;
  align-items: center;
}

.card-assignee i, .card-date i {
  margin-right: 4px;
  font-size: 11px;
}

/* ドラッグ中のスタイル */
.kanban-card.dragging {
  opacity: 0.5;
  border: 2px dashed var(--primary-color);
}

.kanban-column.drag-over {
  background-color: var(--primary-light);
}

/* タスク管理スタイル */
.tasks-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.tasks-filters {
  display: flex;
  gap: 10px;
}

.task-search {
  width: 250px;
}

.tasks-container {
  height: calc(100vh - 260px);
  background-color: var(--card-bg);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow);
  border: 1px solid var(--border-light);
  overflow: hidden;
}

.tasks-sidebar {
  width: 230px;
  border-right: 1px solid var(--border-color);
  padding: 20px 0;
  overflow-y: auto;
  background-color: var(--bg-light);
}

.task-category {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  margin-bottom: 2px;
}

.task-category:hover {
  background-color: var(--bg-color);
  color: var(--text-color);
}

.task-category.active {
  background-color: var(--primary-light);
  color: var(--primary-color);
  font-weight: 600;
}

.task-category.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background-color: var(--primary-color);
}

.task-category i {
  margin-right: 10px;
  width: 20px;
  text-align: center;
}

.task-category span {
  flex: 1;
}

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 24px;
  height: 20px;
  border-radius: 10px;
  background-color: var(--bg-color);
  color: var(--text-secondary);
  font-size: 11px;
  font-weight: 600;
  padding: 0 6px;
}

.badge.red {
  background-color: var(--danger-light);
  color: var(--danger-color);
}

.badge.green {
  background-color: var(--success-light);
  color: var(--success-color);
}

.divider {
  height: 1px;
  background-color: var(--border-color);
  margin: 16px 0;
}

.tasks-list {
  padding: 20px;
  overflow-y: auto;
  height: 100%;
}

.task-group {
  margin-bottom: 24px;
}

.task-group:last-child {
  margin-bottom: 0;
}

.task-group-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-light);
  color: var(--text-color);
}

.task-item {
  display: flex;
  align-items: flex-start;
  padding: 12px;
  background-color: var(--bg-light);
  border-radius: var(--radius);
  margin-bottom: 10px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  transition: var(--transition);
}

.task-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
  border-color: var(--primary-color);
}

.task-item.overdue {
  border-left: 3px solid var(--danger-color);
}

.task-checkbox {
  margin-right: 12px;
  margin-top: 2px;
}

.task-checkbox input[type="checkbox"] {
  display: none;
}

.task-checkbox label {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-color);
  border-radius: 4px;
  position: relative;
  cursor: pointer;
  transition: var(--transition);
}

.task-checkbox input[type="checkbox"]:checked + label {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
}

.task-checkbox input[type="checkbox"]:checked + label::after {
  content: '\f00c';
  font-family: 'Font Awesome 5 Free';
  font-weight: 900;
  color: white;
  font-size: 12px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.task-content {
  flex: 1;
  min-width: 0; /* Prevents flex item from overflowing */
}

.task-title {
  font-weight: 500;
  margin-bottom: 8px;
  line-height: 1.4;
}

.task-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 12px;
  color: var(--text-secondary);
}

.task-deal, .task-priority, .task-deadline {
  display: flex;
  align-items: center;
}

.task-deal i, .task-priority i, .task-deadline i {
  margin-right: 4px;
  font-size: 11px;
}

.task-priority.high {
  color: var(--danger-color);
}

.task-priority.medium {
  color: var(--warning-color);
}

.task-priority.low {
  color: var(--info-color);
}

.task-assignee {
  display: flex;
  align-items: center;
  margin: 0 16px;
}

.assignee-avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  margin-right: 8px;
}

.assignee-name {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
}

.task-actions {
  display: flex;
  gap: 6px;
}

.task-action-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  color: var(--text-light);
  transition: var(--transition);
  position: relative;
}

.task-action-btn:hover {
  background-color: var(--primary-light);
  color: var(--primary-color);
}

.task-action-btn[data-tooltip="削除"]:hover {
  background-color: var(--danger-light);
  color: var(--danger-color);
}

.task-action-btn[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  top: -30px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--dark-color);
  color: white;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  font-size: 11px;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 10;
}

.task-action-btn[data-tooltip]:hover::after {
  opacity: 1;
  visibility: visible;
}



/* モーダル */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 1000;
  overflow: auto;
}

.modal.active {
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-content {
  background-color: var(--card-bg);
  border-radius: var(--radius-md);
  width: 600px;
  max-width: 90%;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
  animation: modalFadeIn 0.3s;
}

@keyframes modalFadeIn {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px;
  border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
  font-size: 18px;
  font-weight: 600;
}

.close-modal {
  font-size: 24px;
  color: var(--text-light);
  cursor: pointer;
  transition: var(--transition);
}

.close-modal:hover {
  color: var(--danger-color);
}

.modal-body {
  padding: 20px;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  padding: 15px 20px;
  border-top: 1px solid var(--border-color);
  gap: 10px;
}

/* フォーム要素 */
.form-group {
  margin-bottom: 20px;
}

.form-row {
  display: flex;
  gap: 20px;
  margin-bottom: 20px;
}

.form-group.half {
  flex: 1;
  margin-bottom: 0;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 8px;
}

.required {
  color: var(--danger-color);
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  background-color: var(--bg-light);
  color: var(--text-color);
  outline: none;
  transition: var(--transition);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(88, 101, 242, 0.1);
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
}

.checkbox-container {
  display: flex;
  align-items: center;
  position: relative;
  padding-left: 30px;
  cursor: pointer;
}

.checkbox-container input {
  position: absolute;
  opacity: 0;
  height: 0;
  width: 0;
}

.checkmark {
  position: absolute;
  top: 0;
  left: 0;
  height: 20px;
  width: 20px;
  background-color: var(--bg-light);
  border: 1px solid var(--border-color);
  border-radius: 4px;
}

.checkbox-container:hover input ~ .checkmark {
  background-color: var(--bg-color);
}

.checkbox-container input:checked ~ .checkmark {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
}

.checkmark:after {
  content: "";
  position: absolute;
  display: none;
}

.checkbox-container input:checked ~ .checkmark:after {
  display: block;
}

.checkbox-container .checkmark:after {
  left: 7px;
  top: 3px;
  width: 5px;
  height: 10px;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

/* トースト通知 */
.toast-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toast {
  background-color: var(--card-bg);
  border-left: 4px solid var(--primary-color);
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  min-width: 300px;
  max-width: 400px;
  animation: toastIn 0.3s ease-out;
}

@keyframes toastIn {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

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

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

.toast.warning {
  border-left-color: var(--warning-color);
}

.toast.info {
  border-left-color: var(--info-color);
}

.toast-icon {
  margin-right: 12px;
  font-size: 20px;
}

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

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

.toast.warning .toast-icon {
  color: var(--warning-color);
}

.toast.info .toast-icon {
  color: var(--info-color);
}

.toast-content {
  flex: 1;
}

.toast-title {
  font-weight: 600;
  margin-bottom: 4px;
}

.toast-message {
  font-size: 13px;
  color: var(--text-secondary);
}

.toast-close {
  margin-left: 12px;
  color: var(--text-light);
  cursor: pointer;
  transition: var(--transition);
}

.toast-close:hover {
  color: var(--text-color);
}

/* ダークモード */
body.theme-dark {
  /* Discord風ダークテーマ */
  --primary-color: #7289DA;
  --primary-dark: #5F73BC;
  --primary-light: #414980;
  --primary-gradient: linear-gradient(135deg, #7289DA 0%, #5F73BC 100%);
  
  --text-color: #FFFFFF;
  --text-secondary: #B9BBBE;
  --text-light: #8E9297;
  --text-muted: #72767D;
  
  --bg-color: #36393F;
  --bg-light: #40444B;
  --bg-dark: #2F3136;
  
  --sidebar-bg: #2F3136;
  --card-bg: #40444B;
  
  --border-color: #202225;
  --border-light: #4F545C;
  
  --shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-hover: 0 8px 16px rgba(114, 137, 218, 0.2);
}

/* ダークモード時のヘッダーとコントロール改善 */
body.theme-dark .top-header {
  background-color: #202225 !important; /* Discord の暗めのバックグラウンド */
  border-bottom-color: #4F545C !important;
  backdrop-filter: none !important;
}

body.theme-dark .search-container {
  background-color: #202225;
}

body.theme-dark .search-input {
  color: #FFFFFF;
}

body.theme-dark .filter-select,
body.theme-dark .form-select,
body.theme-dark .form-input,
body.theme-dark .form-textarea {
  background-color: #2F3136;
  border-color: #4F545C;
  color: #FFFFFF;
}

body.theme-dark .secondary-btn {
  background-color: #4F545C;
  border-color: #72767D;
  color: #FFFFFF;
}

body.theme-dark .secondary-btn:hover {
  background-color: #5D6269;
  border-color: #7289DA;
}

body.theme-dark .secondary-btn i {
  color: #FFFFFF;
}

body.theme-dark .sidebar-nav ul li.active a {
  background-color: #42464D; /* Discord アクティブ項目 */
  color: var(--primary-color);
}

body.theme-dark .sidebar-nav ul li a:hover {
  background-color: #42464D;
  color: var(--text-color);
}

body.theme-dark .donut-hole {
  background-color: #40444B;
}

body.theme-dark .stage-bar {
  color: #FFFFFF;
}

/* レスポンシブデザイン */
@media (max-width: 1280px) {
  .deals-list {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  }
}

@media (max-width: 992px) {
  .deals-list {
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  }
  
  .tasks-container {
    flex-direction: column;
    height: auto;
  }
  
  .tasks-sidebar {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--border-color);
    padding: 10px 0;
  }
  
  .task-category {
    padding: 10px 16px;
  }
  
  .tasks-list {
    padding: 15px;
  }
}

@media (max-width: 768px) {
  :root {
    --container-padding: 15px;
  }
  
  .sidebar {
    transform: translateX(-100%);
    box-shadow: none;
  }
  
  .sidebar.open {
    transform: translateX(0);
    box-shadow: var(--shadow-lg);
  }
  
  .main-content {
    margin-left: 0;
  }
  
  .sidebar.collapsed + .main-content {
    margin-left: 0;
  }
  
  .mobile-toggle-btn {
    display: flex;
  }
  
  .page-header {
    flex-direction: column;
  }
  
  .page-actions {
    margin-top: 15px;
    width: 100%;
  }
  
  .mobile-menu-overlay {
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 990;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
  }
  
  .mobile-menu-overlay.active {
    opacity: 1;
    visibility: visible;
  }
  
  .task-meta {
    flex-direction: column;
    gap: 5px;
  }
  
  .task-assignee {
    margin: 10px 0;
  }
  
  .form-row {
    flex-direction: column;
    gap: 15px;
  }
  
  .deals-filters,
  .tasks-header,
  .board-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
  
  .filter-group,
  .tasks-filters,
  .board-filters {
    width: 100%;
  }
  
  .deal-search,
  .task-search {
    width: 100%;
    margin-top: 10px;
  }
  
  .board-actions {
    margin-top: 10px;
  }
  
  .kanban-board {
    flex-direction: column;
    gap: 20px;
  }
  
  .kanban-column {
    width: 100%;
    min-width: 100%;
  }
  
  .column-body {
    max-height: 300px;
  }
}

@media (max-width: 576px) {
  .user-info {
    display: none;
  }
  
  .search-container {
    width: 200px;
  }
  
  .kpi-summary {
    grid-template-columns: 1fr;
  }
  
  .deals-list {
    grid-template-columns: 1fr;
  }
  
  .task-actions {
    flex-direction: column;
  }
  
  .modal-content {
    width: 95%;
  }
}
/* 空状態表示 */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: #666;
}

.empty-state i {
  font-size: 48px;
  color: #ccc;
  margin-bottom: 20px;
}

.empty-state h3 {
  font-size: 20px;
  margin-bottom: 10px;
  color: #333;
}

.empty-state p {
  font-size: 14px;
  color: #666;
  margin-bottom: 20px;
}

.empty-state .btn {
  display: inline-block;
  text-decoration: none;
}

/* 担当者管理スタイル */
.team-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.team-header h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-color);
}

.team-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.team-member-card {
  background-color: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--border-light);
  padding: 20px;
  transition: var(--transition);
}

.team-member-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
  border-color: var(--primary-color);
}

.member-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 16px;
}

.member-info {
  flex: 1;
}

.member-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-color);
  margin-bottom: 4px;
}

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

.member-stats {
  display: flex;
  gap: 20px;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border-light);
}

.member-stat {
  flex: 1;
  text-align: center;
}

.member-stat-value {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary-color);
  display: block;
}

.member-stat-label {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 4px;
}