/* ====== CSS Variables & Theming ====== */
:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --primary-light: #818cf8;
  --accent: #8b5cf6;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #3b82f6;

  --sidebar-w: 260px;
  --sidebar-collapsed-w: 72px;
  --topbar-h: 64px;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.12);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* Light theme (default) */
[data-theme="light"] {
  --bg: #f0f2f5;
  --bg-elevated: #ffffff;
  --surface: #ffffff;
  --surface-hover: #f8fafc;
  --sidebar-bg: #ffffff;
  --border: #e2e8f0;
  --border-light: #f1f5f9;
  --text: #1e293b;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(255, 255, 255, 0.8);
  --overlay: rgba(0, 0, 0, 0.4);
}

/* Dark theme */
[data-theme="dark"] {
  --bg: #0f172a;
  --bg-elevated: #1e293b;
  --surface: #1e293b;
  --surface-hover: #334155;
  --sidebar-bg: #1e293b;
  --border: #334155;
  --border-light: #334155;
  --text: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --glass-bg: rgba(30, 41, 59, 0.7);
  --glass-border: rgba(148, 163, 184, 0.1);
  --overlay: rgba(0, 0, 0, 0.6);
}

/* ====== Reset ====== */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { font-size: 14px; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background var(--transition), color var(--transition);
  overflow: hidden;
}
a { text-decoration: none; color: inherit; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, select { font-family: inherit; }

/* ====== App Layout ====== */
.app {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* ====== Sidebar ====== */
.sidebar {
  width: var(--sidebar-w);
  background: var(--sidebar-bg);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  transition: width var(--transition), transform var(--transition);
  z-index: 100;
  flex-shrink: 0;
}

.sidebar-header {
  padding: 20px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--border-light);
  height: var(--topbar-h);
}

.logo-icon {
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.logo-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  white-space: nowrap;
}
.logo-subtitle {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.5px;
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 16px 12px;
}

.nav-section { margin-bottom: 24px; }
.nav-section-title {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  padding: 0 12px 8px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  margin-bottom: 2px;
  position: relative;
}
.nav-item:hover {
  background: var(--surface-hover);
  color: var(--text);
}
.nav-item.active {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}
.nav-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* Sub nav items */
.nav-item.sub {
  padding-left: 40px;
  font-size: 13px;
}
.nav-item.sub::before {
  content: '';
  position: absolute;
  left: 20px;
  top: 50%;
  width: 8px;
  height: 1px;
  background: var(--border);
}

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid var(--border-light);
}
.user-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px;
  border-radius: var(--radius-sm);
}
.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
}
.user-name { font-size: 13px; font-weight: 600; color: var(--text); }
.user-role { font-size: 11px; color: var(--text-muted); }

/* ====== Main ====== */
.main {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-width: 0;
}

.topbar {
  height: var(--topbar-h);
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  flex-shrink: 0;
}
.topbar-left {
  display: flex;
  align-items: center;
  gap: 16px;
}
.sidebar-toggle { display: none; }
.page-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
}
.topbar-right {
  display: flex;
  align-items: center;
  gap: 16px;
}
.date-display {
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 500;
}

.theme-toggle {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  background: var(--surface-hover);
}
.theme-toggle:hover {
  color: var(--primary);
  background: var(--border-light);
}
.theme-toggle .icon-moon { display: none; }
[data-theme="dark"] .theme-toggle .icon-sun { display: none; }
[data-theme="dark"] .theme-toggle .icon-moon { display: block; }

/* ====== Content ====== */
.content {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
}

/* ====== Cards ====== */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  transition: all var(--transition);
}
.card:hover {
  box-shadow: var(--shadow);
}

.card-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Glass card */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
}

/* ====== Stats Cards (Dashboard) ====== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  position: relative;
  overflow: hidden;
  transition: all var(--transition);
}
.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-light);
}
.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--card-accent, var(--primary));
}
.stat-card .stat-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
  background: var(--card-bg, rgba(99, 102, 241, 0.1));
  color: var(--card-accent, var(--primary));
}
.stat-card .stat-value {
  font-size: 32px;
  font-weight: 800;
  color: var(--text);
  line-height: 1.2;
}
.stat-card .stat-label {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 4px;
}
.stat-card .stat-trend {
  font-size: 12px;
  margin-top: 8px;
  display: flex;
  align-items: center;
  gap: 4px;
}
.stat-trend.up { color: var(--success); }
.stat-trend.down { color: var(--danger); }

/* ====== Filters ====== */
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 20px;
  align-items: center;
}
.filter-group {
  display: flex;
  align-items: center;
  gap: 8px;
}
.filter-label {
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 500;
  white-space: nowrap;
}
.filter-select, .filter-input {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  font-size: 13px;
  color: var(--text);
  outline: none;
  transition: border-color var(--transition-fast);
  cursor: pointer;
}
.filter-select:focus, .filter-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}
.filter-select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
  padding-right: 30px;
}

/* ====== Dashboard Grid ====== */
.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}
.dashboard-grid .full { grid-column: 1 / -1; }

.chart-container {
  position: relative;
  height: 280px;
}
.chart-container-sm {
  position: relative;
  height: 200px;
}

/* ====== Progress Bar ====== */
.progress-bar {
  width: 100%;
  height: 6px;
  background: var(--border-light);
  border-radius: 3px;
  overflow: hidden;
}
.progress-bar-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
}

/* ====== Status & Priority Badges ====== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
}
.badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}
.badge-pending   { color: #94a3b8; background: #f1f5f9; }
.badge-progress  { color: #6366f1; background: #eef2ff; }
.badge-completed { color: #10b981; background: #ecfdf5; }
.badge-delayed   { color: #ef4444; background: #fef2f2; }
.badge-paused    { color: #f59e0b; background: #fffbeb; }

[data-theme="dark"] .badge-pending   { background: rgba(148,163,184,0.15); }
[data-theme="dark"] .badge-progress  { background: rgba(99,102,241,0.15); }
[data-theme="dark"] .badge-completed { background: rgba(16,185,129,0.15); }
[data-theme="dark"] .badge-delayed   { background: rgba(239,68,68,0.15); }
[data-theme="dark"] .badge-paused    { background: rgba(245,158,11,0.15); }

/* 列表「状态」列 / 悬浮提示里的逾期·临期标记（v1.2.16）
   与详情弹窗「剩余时间」同源（DataStore.taskTimeMeta），颜色语义与之一致：
   is-overdue 红（已逾期）/ is-soon 橙（今日截止或 3 天内到期） */
.task-time-tag {
  display: inline-block;
  margin-left: 6px;
  padding: 1px 7px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 600;
  line-height: 18px;
  white-space: nowrap;
  vertical-align: middle;
}
.task-time-tag.is-overdue { color: var(--danger);  background: rgba(239,68,68,0.10);  border: 1px solid rgba(239,68,68,0.25); }
.task-time-tag.is-soon    { color: var(--warning); background: rgba(245,158,11,0.12); border: 1px solid rgba(245,158,11,0.28); }

/* 悬浮提示里的标记不换行挤压进度文案：与进度之间留出间距 */
.tip-sub .task-time-tag { margin-left: 0; margin-right: 8px; }

.priority-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 600;
}
.priority-low    { color: #94a3b8; }
.priority-medium { color: #3b82f6; }
.priority-high   { color: #f59e0b; }
.priority-urgent { color: #ef4444; }

/* ====== Table ====== */
.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}
table.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.data-table thead {
  background: var(--surface-hover);
}
.data-table th {
  text-align: left;
  padding: 12px 16px;
  font-weight: 600;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
  cursor: pointer;
  user-select: none;
}
.data-table th:hover { color: var(--text); }
.data-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-light);
  color: var(--text);
}
.data-table tbody tr {
  transition: background var(--transition-fast);
  cursor: pointer;
}
.data-table tbody tr:hover {
  background: var(--surface-hover);
}
.data-table tbody tr:last-child td {
  border-bottom: none;
}

.task-title-cell {
  font-weight: 600;
  max-width: 240px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ====== Modal ====== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: var(--overlay);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  animation: fadeIn 0.2s ease;
}
.modal-overlay.active { display: flex; }
.modal {
  background: var(--bg-elevated);
  border-radius: var(--radius-lg);
  width: 90%;
  max-width: 560px;
  max-height: 85vh;
  overflow-y: auto;
  padding: 28px;
  box-shadow: var(--shadow-lg);
  animation: slideUp 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
/* 放大版弹窗（任务编辑 / 详情，v1.1.17） */
.modal.wide {
  max-width: 980px;
  max-height: 90vh;
}
.modal-2col {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 28px;
}
.modal-2col .pane {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.modal-2col .pane-divider {
  border-left: 1px solid var(--border);
  padding-left: 28px;
}
.modal-2col .pane-title {
  font-size: 15px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: 0.4px;
  margin-bottom: 2px;
  border-left: 3px solid var(--primary);
  padding-left: 8px;
  line-height: 1.3;
}
.modal-2col .form-group.full { grid-column: auto; }
.modal-2col textarea.form-textarea { min-height: 140px; resize: vertical; }
@media (max-width: 760px) {
  .modal.wide { max-width: 94%; }
  .modal-2col { grid-template-columns: 1fr; gap: 20px; }
  .modal-2col .pane-divider { border-left: none; padding-left: 0; border-top: 1px solid var(--border); padding-top: 20px; }
}
.modal-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 20px;
}
.modal-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
}
.modal-close {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: all var(--transition-fast);
}
.modal-close:hover {
  background: var(--surface-hover);
  color: var(--text);
}
.modal-body { display: flex; flex-direction: column; gap: 16px; }
.modal-field {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.modal-field-label {
  font-size: 13px;
  color: var(--text);
  font-weight: 700;
  letter-spacing: 0.3px;
}
.modal-field-value {
  font-size: 14px;
  color: var(--text);
  font-weight: 500;
}

/* ====== 任务详情（details，v1.1.9） ====== */
.detail-list {
  margin-top: 8px;
  display: flex;
  flex-direction: column;
}
.detail-item {
  position: relative;
  padding: 10px 0;
  border-bottom: 1px solid var(--border-light);
}
.detail-item:last-child { border-bottom: none; }
.detail-content {
  font-size: 13px;
  line-height: 1.7;
  color: var(--text);
  white-space: pre-wrap;
  word-break: break-word;
  padding-right: 120px;
}
.detail-meta {
  margin-top: 4px;
  font-size: 11px;
  color: var(--text-muted);
  display: flex;
  gap: 8px;
}
.detail-author { font-weight: 500; color: var(--text-secondary); }
.detail-actions {
  position: absolute;
  top: 8px;
  right: 0;
  display: flex;
  gap: 4px;
}
.detail-empty {
  font-size: 13px;
  color: var(--text-muted);
  padding: 6px 0;
}

/* ====== 任务行悬浮提示（v1.1.11 毛玻璃动效升级） ====== */
.task-hover-tip {
  position: fixed;
  z-index: 9999;
  max-width: 340px;
  min-width: 240px;
  padding: 14px 16px;
  background: color-mix(in srgb, var(--surface) 80%, transparent);
  backdrop-filter: blur(30px) saturate(220%);
  -webkit-backdrop-filter: blur(30px) saturate(220%);
  border: 1px solid color-mix(in srgb, var(--border) 65%, transparent);
  border-radius: 14px;
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.34), inset 0 1px 0 rgba(255, 255, 255, 0.18);
  color: var(--text);
  font-size: 12px;
  line-height: 1.5;
  pointer-events: none;
  transform-origin: top left;
  overflow: hidden;
  animation: tipGlass 0.26s cubic-bezier(0.16, 1, 0.3, 1);
}
/* 顶部流光条：增强毛玻璃高级感 */
.task-hover-tip::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, #6366f1, #a855f7, #22d3ee, #6366f1);
  background-size: 220% 100%;
  animation: tipSheen 2.6s linear infinite;
}
@keyframes tipGlass {
  from { opacity: 0; transform: translateY(8px) scale(0.94); filter: blur(3px); }
  to   { opacity: 1; transform: translateY(0) scale(1); filter: blur(0); }
}
@keyframes tipSheen {
  from { background-position: 0% 0; }
  to   { background-position: 220% 0; }
}
/* 刷新按钮 loading 旋转 */
#btnRefresh.loading .refresh-icon,
#btnRefresh.loading .refresh-label { display: none; }
#btnRefresh.loading .refresh-spinner { display: inline-block !important; }
#btnRefresh:disabled { cursor: wait; opacity: 0.85; }
.tip-head { margin-bottom: 4px; }
.tip-title { font-size: 13px; font-weight: 700; color: var(--text); margin-bottom: 6px; line-height: 1.4; }
.tip-sub { display: flex; align-items: center; gap: 8px; }
.tip-progress { font-size: 11px; color: var(--text-secondary); }
.tip-sep { height: 1px; background: var(--border-light); margin: 8px 0; }
.tip-details-label { font-size: 11px; color: var(--text-muted); margin-bottom: 6px; }
.tip-detail { padding: 6px 0; border-bottom: 1px dashed var(--border-light); }
.tip-detail:last-child { border-bottom: none; }
.tip-detail-content {
  font-size: 12px; line-height: 1.6; color: var(--text);
  white-space: pre-wrap; word-break: break-word;
  max-height: 84px; overflow: hidden;
}
.tip-detail-meta { margin-top: 3px; font-size: 10.5px; color: var(--text-muted); }
.tip-empty { font-size: 12px; color: var(--text-muted); padding: 4px 0; }

/* ====== 状态拖拽排序（v1.1.11） ====== */
.drag-hint {
  font-size: 12px;
  color: var(--text-muted);
  background: var(--surface-hover);
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  margin-bottom: 12px;
}
.drag-handle-ico { color: var(--primary); font-weight: 700; }
.status-handle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px; height: 28px;
  border-radius: 8px;
  color: var(--text-muted);
  cursor: grab;
  transition: background 0.18s ease, color 0.18s ease, transform 0.18s ease;
}
.status-handle:hover { background: var(--surface-hover); color: var(--primary); transform: scale(1.08); }
.status-handle:active { cursor: grabbing; }
tr[data-key].dragging {
  opacity: 0.45;
  background: color-mix(in srgb, var(--primary) 12%, var(--surface));
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.28);
}
tr[data-key].drag-over-up { box-shadow: inset 0 3px 0 0 var(--primary); }
tr[data-key].drag-over-down { box-shadow: inset 0 -3px 0 0 var(--primary); }

/* 清除筛选按钮在存在筛选条件时高亮 */
#btnClearFilter.active-filter {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(99, 102, 241, 0.08);
}

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

/* ====== Animations ====== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}
.fade-in { animation: fadeInUp 0.4s ease forwards; }
.fade-in-delay-1 { animation: fadeInUp 0.4s ease 0.05s forwards; opacity: 0; }
.fade-in-delay-2 { animation: fadeInUp 0.4s ease 0.1s forwards; opacity: 0; }
.fade-in-delay-3 { animation: fadeInUp 0.4s ease 0.15s forwards; opacity: 0; }

/* ====== Section Title ====== */
.section-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.section-title::before {
  content: '';
  width: 4px;
  height: 16px;
  background: var(--primary);
  border-radius: 2px;
}

/* ====== Project / Group / User Cards (Stats) ====== */
.stats-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.stats-row {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 16px;
  background: var(--surface-hover);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  border: 1px solid transparent;
}
.stats-row:hover {
  border-color: var(--primary-light);
  transform: translateX(4px);
}
.stats-row-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  min-width: 120px;
}
.stats-row-bars {
  flex: 1;
  display: flex;
  gap: 4px;
  height: 28px;
  border-radius: 6px;
  overflow: hidden;
  background: var(--border-light);
}
.stats-row-bar {
  height: 100%;
  transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  color: #fff;
  min-width: 0;
  overflow: hidden;
  white-space: nowrap;
}
.stats-row-numbers {
  display: flex;
  gap: 12px;
  font-size: 12px;
  color: var(--text-secondary);
  white-space: nowrap;
}
.stats-row-numbers strong {
  color: var(--text);
  font-size: 14px;
}
.stats-row-progress {
  width: 60px;
  text-align: right;
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
}

/* ====== Gantt Chart ====== */
.gantt-controls {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.gantt-controls .spacer { flex: 1; }

.gantt-btn-group {
  display: flex;
  background: var(--surface-hover);
  border-radius: var(--radius-sm);
  padding: 2px;
  border: 1px solid var(--border);
}
.gantt-btn {
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: 6px;
  transition: all var(--transition-fast);
}
.gantt-btn:hover { color: var(--text); }
.gantt-btn.active {
  background: var(--primary);
  color: #fff;
}

.gantt-wrapper {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.gantt-header {
  display: flex;
  border-bottom: 2px solid var(--border);
  background: var(--surface-hover);
}
.gantt-header-label {
  min-width: 240px;
  max-width: 240px;
  padding: 10px 16px;
  font-size: 12px;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-right: 1px solid var(--border);
  display: flex;
  align-items: center;
  flex-shrink: 0;
  /* sticky left：横向滚动时 "项目" 标签保持可见（与 .gantt-labels 对齐） */
  position: sticky;
  left: 0;
  z-index: 12;
  background: var(--surface);
  box-sizing: border-box;
}
.gantt-header-timeline {
  flex: 1;
  display: flex;
  /* v1.2.5：表头与数据行水平不同步修复
     旧 overflow:hidden 把内层 timelineWidth 撑出的月格（6/7/8+）永久裁切，
     致 .gantt-body 横向滚时数据行滚而表头不动。
     新：min-width:0 让 flex item 允许被压到比内容窄；overflow:visible
     让月格溢出盒边界显示，**与 .gantt-rows 一起被 .gantt-body 水平滚动**。
     sticky top 与 240px sticky-left 标签列均不受影响。 */
  min-width: 0;
  overflow: visible;
  position: relative;
}
.gantt-header-month {
  /* flex:0 0 auto —— 不 grow/shrink，完全按内联 width 渲染。
     flex:1 1 0% 会让 cell 被 gantt-timeline 平分宽度（实测每格被扩展 ~3px），
     导致 cell 总宽超出 body scrollWidth，末月格无法完整滚进视口。 */
  flex: 0 0 auto;
  text-align: center;
  font-size: 12px;
  font-weight: 600;
  color: var(--text);
  padding: 10px 0;
  border-right: 1px solid var(--border-light);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: clip;
}
.gantt-header-month:last-child { border-right: none; }
.gantt-header-week {
  display: flex;
  border-top: 1px solid var(--border-light);
}
.gantt-header-week-cell {
  flex: 1;
  text-align: center;
  font-size: 10px;
  color: var(--text-muted);
  padding: 4px 0;
  border-right: 1px solid var(--border-light);
}

.gantt-body {
  display: flex;
  flex-direction: column;
  overflow: auto;
  max-height: 600px;
  border-top: 1px solid var(--border-light);
}
/* 数据行容器：内部左右布局，与表头共用横向滚动 */
.gantt-rows {
  display: flex;
  flex: 1;
  min-height: 0;
}
.gantt-labels {
  min-width: 240px;
  max-width: 240px;
  border-right: 1px solid var(--border);
  flex-shrink: 0;
  /* 关键：左侧列固定，横向滚动时间轴时标签列不动（典型甘特图 UX） */
  position: sticky;
  left: 0;
  z-index: 10;
  background: var(--surface);
  box-shadow: 2px 0 4px rgba(0, 0, 0, 0.04);
}
/* 表头：sticky top，垂直滚动时停留在顶部，水平与数据行同步 */
.gantt-header {
  display: flex;
  position: sticky;
  top: 0;
  z-index: 11;
  background: var(--surface);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}
.gantt-label-row {
  display: flex;
  align-items: center;
  padding: 0 16px;
  height: 40px;
  border-bottom: 1px solid var(--border-light);
  font-size: 13px;
  color: var(--text);
  font-weight: 500;
  gap: 8px;
  transition: background var(--transition-fast);
  cursor: pointer;
  box-sizing: border-box;
}
.gantt-label-row:hover { background: var(--surface-hover); }
/* 行高亮：同时高亮标签行与时间轴行（通过 :has 选中同序行） */
.gantt-label-row:hover ~ .gantt-label-row { /* 兜底，真实同步在 JS 端做 */ }
.gantt-label-row.parent { font-weight: 700; }
.gantt-label-row.child {
  padding-left: 36px;
  font-weight: 400;
  font-size: 12px;
  color: var(--text-secondary);
}
.gantt-label-row.child::before {
  content: '├';
  position: absolute;
  margin-left: -16px;
  color: var(--text-muted);
}
.gantt-label-icon {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.gantt-label-count {
  margin-left: auto;
  font-size: 11px;
  color: var(--text-muted);
  background: var(--surface-hover);
  padding: 1px 6px;
  border-radius: 10px;
}

.gantt-timeline {
  flex: 1;
  position: relative;
  min-width: 0;
}
.gantt-timeline-inner {
  position: relative;
}
.gantt-row {
  height: 40px;
  border-bottom: 1px solid var(--border-light);
  position: relative;
  box-sizing: border-box;
}
.gantt-row.parent {
  background: var(--surface-hover);
}
/* 分支任务条：降高度、略降透明度，与父条视觉区分 */
.gantt-bar.branch {
  height: 20px;
  top: 10px;
  opacity: 0.92;
  border-left: 3px solid rgba(245, 158, 11, 0.85); /* 琥珀色，与 .branch-tag 呼应 */
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12);
}
.gantt-bar.branch:hover {
  opacity: 1;
}
.gantt-bar {
  position: absolute;
  top: 8px;
  height: 24px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  padding: 0 8px;
  font-size: 11px;
  font-weight: 600;
  color: #fff;
  overflow: hidden;
  white-space: nowrap;
  cursor: pointer;
  transition: all var(--transition-fast);
  z-index: 2;
}
.gantt-bar:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  z-index: 3;
}
.gantt-bar-progress {
  position: absolute;
  top: 0; left: 0; bottom: 0;
  background: rgba(255,255,255,0.3);
  border-radius: 6px 0 0 6px;
}
.gantt-today-line {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--danger);
  z-index: 5;
  pointer-events: none;
  box-shadow: 0 0 8px rgba(239, 68, 68, 0.45);
}
.gantt-today-line::before {
  /* 顶部小三角箭头，强调「今天」位置 */
  content: '';
  position: absolute;
  top: -4px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 6px solid var(--danger);
}
.gantt-today-label {
  position: absolute;
  top: 4px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--danger);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 4px;
  white-space: nowrap;
  box-shadow: 0 2px 8px rgba(239, 68, 68, 0.55);
  pointer-events: none;
  z-index: 6;
  letter-spacing: 0.5px;
}
.gantt-grid-line {
  position: absolute;
  top: 28px; /* 与 .gantt-timeline-inner 的 padding-top 一致，网格线随数据行一起下移 */
  bottom: 0;
  width: 1px;
  background: var(--border-light);
  z-index: 1;
}
.gantt-empty {
  padding: 40px;
  text-align: center;
  color: var(--text-muted);
  font-size: 14px;
}

/* ====== Empty State ====== */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}
.empty-state svg {
  margin-bottom: 16px;
  opacity: 0.5;
}

/* ====== Tooltip ====== */
.gantt-tooltip {
  position: fixed;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-size: 12px;
  box-shadow: var(--shadow-lg);
  z-index: 9999;
  pointer-events: none;
  max-width: 280px;
  display: none;
}
.gantt-tooltip.show { display: block; }
.gantt-tooltip-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}
.gantt-tooltip-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 4px;
}
.gantt-tooltip-label { color: var(--text-muted); }
.gantt-tooltip-value { color: var(--text); font-weight: 500; }

/* ====== Scrollbar ====== */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ====== Responsive ====== */
@media (max-width: 1024px) {
  .dashboard-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .sidebar {
    position: fixed;
    left: 0; top: 0; bottom: 0;
    transform: translateX(-100%);
    box-shadow: var(--shadow-lg);
  }
  .sidebar.open { transform: translateX(0); }
  .sidebar-toggle { display: flex; }
  .content { padding: 16px; }
  .page-title { font-size: 18px; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .filters { flex-direction: column; align-items: stretch; }
  .filter-group { width: 100%; }
  .filter-select, .filter-input { width: 100%; }
}

/* ====== Login Overlay (Phone + Password) ====== */
.login-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.3s ease;
}
.login-overlay.hidden { display: none; }

.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 32px 28px;
  width: 90%;
  max-width: 420px;
  box-shadow: var(--shadow-lg);
  animation: slideUp 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.login-header {
  text-align: center;
  margin-bottom: 32px;
}
.login-logo {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: rgba(99, 102, 241, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}
.login-title {
  font-size: 24px;
  font-weight: 800;
  color: var(--text);
  margin-top: 0;
}
.login-subtitle {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 6px;
}

/* Login Form */
.login-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.login-form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.login-form-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
}
.login-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}
.login-input-icon {
  position: absolute;
  left: 14px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  pointer-events: none;
  z-index: 1;
}
.login-form-input {
  width: 100%;
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px 12px 42px;
  font-size: 15px;
  color: var(--text);
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.login-form-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.12);
}
.login-form-input::placeholder {
  color: var(--text-muted);
  font-size: 14px;
}
/* Password field needs extra right padding for the toggle button */
.login-input-wrapper:has(.login-pwd-toggle) .login-form-input {
  padding-right: 44px;
}

/* Password toggle */
.login-pwd-toggle {
  position: absolute;
  right: 10px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  padding: 4px;
  transition: color var(--transition-fast);
  z-index: 2;
}
.login-pwd-toggle:hover { color: var(--text); }
.login-pwd-toggle .pwd-eye-closed { display: none; }
.login-pwd-toggle.show-pwd .pwd-eye-open { display: none; }
.login-pwd-toggle.show-pwd .pwd-eye-closed { display: block; }

/* Error message */
.login-form-error {
  font-size: 13px;
  color: var(--danger);
  background: rgba(239, 68, 68, 0.08);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.login-form-error::before {
  content: '⚠';
  font-size: 14px;
}

/* Submit button */
.login-submit-btn {
  width: 100%;
  padding: 14px 24px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 4px;
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: none;
}
.login-submit-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.45);
}
.login-submit-btn:active {
  transform: translateY(0);
}
.login-submit-btn.loading .login-btn-text { display: none; }
.login-submit-btn.loading .login-btn-loading { display: flex; align-items: center; gap: 8px; }
.login-submit-btn.loading { opacity: 0.8; cursor: wait; }

@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
.spin-icon { animation: spin 1s linear infinite; }

/* Login footer (demo hint) */
.login-footer {
  margin-top: 24px;
  text-align: center;
}
.login-demo-hint {
  font-size: 13px;
}
.login-demo-toggle {
  color: var(--text-muted);
  cursor: pointer;
  font-weight: 500;
  transition: color var(--transition-fast);
  user-select: none;
}
.login-demo-toggle:hover { color: var(--primary); }
.login-demo-list {
  margin-top: 12px;
  background: var(--surface-hover);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  max-height: 240px;
  overflow-y: auto;
  text-align: left;
}
.login-demo-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 6px;
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: 13px;
}
.login-demo-item:hover {
  background: rgba(99, 102, 241, 0.06);
}
.login-demo-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
}
.login-demo-info { flex: 1; }
.login-demo-name { font-weight: 600; color: var(--text); }
.login-demo-phone { font-size: 11px; color: var(--text-muted); margin-top: 1px; }
.login-demo-role {
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 12px;
  flex-shrink: 0;
}
.login-demo-role.admin           { background: rgba(99,102,241,0.1);  color: #6366f1; }
.login-demo-role.project_manager { background: rgba(139,92,246,0.1); color: #8b5cf6; }
.login-demo-role.team_lead       { background: rgba(16,185,129,0.1); color: #10b981; }
.login-demo-role.member          { background: rgba(148,163,184,0.1); color: #94a3b8; }

[data-theme="dark"] .login-demo-role.admin           { background: rgba(99,102,241,0.2); }
[data-theme="dark"] .login-demo-role.project_manager { background: rgba(139,92,246,0.2); }
[data-theme="dark"] .login-demo-role.team_lead       { background: rgba(16,185,129,0.2); }
[data-theme="dark"] .login-demo-role.member          { background: rgba(148,163,184,0.2); }
[data-theme="dark"] .login-form-error                { background: rgba(239,68,68,0.15); }

/* ====== Action Buttons ====== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
}
.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 1px solid var(--primary);
}
.btn-outline:hover {
  background: rgba(99, 102, 241, 0.08);
}
.btn-danger {
  background: var(--danger);
  color: #fff;
}
.btn-danger:hover {
  background: #dc2626;
  transform: translateY(-1px);
}
.btn-ghost {
  background: var(--surface-hover);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}
.btn-ghost:hover {
  color: var(--text);
  border-color: var(--primary);
}
.btn-sm {
  padding: 5px 10px;
  font-size: 12px;
}
.btn-lg {
  padding: 12px 24px;
  font-size: 15px;
}

/* ====== Form Elements ====== */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.form-group.full { grid-column: 1 / -1; }
.form-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
}
.required-mark {
  color: var(--danger);
  margin-left: 2px;
  font-weight: 700;
}
/* 是否管理员 开关 */
.switch-row { display:flex; align-items:center; justify-content:space-between; gap:12px; }
.switch-label { font-size:13px; color:var(--text-secondary); }
.switch { position:relative; display:inline-block; width:44px; height:24px; flex-shrink:0; }
.switch input { opacity:0; width:0; height:0; }
.switch-knob { position:absolute; pointer-events:none; cursor:pointer; inset:0; background:var(--border); border-radius:24px; transition:background .25s ease; }
.switch-knob:before { content:''; position:absolute; height:18px; width:18px; left:3px; top:3px; background:#fff; border-radius:50%; transition:transform .25s ease; box-shadow:0 1px 3px rgba(0,0,0,.25); }
.switch input:checked + .switch-knob { background:var(--primary); }
.switch input:checked + .switch-knob:before { transform:translateX(20px); }
.switch input:disabled + .switch-knob { opacity:.55; cursor:not-allowed; }
.form-input, .form-select, .form-textarea {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 14px;
  color: var(--text);
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}
.form-input:disabled, .form-select:disabled {
  opacity: 0.6;
  background: var(--surface-hover);
  cursor: not-allowed;
}
.form-textarea {
  resize: vertical;
  min-height: 80px;
}
.form-select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 32px;
}

/* ====== Permission Badge ====== */
.perm-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 700;
}
.perm-allow  { background: rgba(16,185,129,0.15); color: #10b981; }
.perm-denied { background: rgba(239,68,68,0.15);  color: #ef4444; }

/* ====== Toast ====== */
.toast-container {
  position: fixed;
  top: 80px;
  right: 24px;
  z-index: 9998;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.toast {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 20px;
  font-size: 14px;
  color: var(--text);
  box-shadow: var(--shadow-lg);
  animation: slideInRight 0.3s ease, fadeOut 0.3s ease 2.5s forwards;
  display: flex;
  align-items: center;
  gap: 8px;
}
.toast-success { border-left: 4px solid var(--success); }
.toast-error   { border-left: 4px solid var(--danger); }
.toast-info    { border-left: 4px solid var(--primary); }

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(40px); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes fadeOut {
  from { opacity: 1; }
  to { opacity: 0; }
}

/* ====== User Management ====== */
.user-mgmt-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
}
.user-mgmt-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: all var(--transition-fast);
}
.user-mgmt-card:hover {
  border-color: var(--primary-light);
  box-shadow: var(--shadow);
}
.user-mgmt-card.current-user {
  border-color: var(--primary);
  background: rgba(99, 102, 241, 0.04);
}
.user-mgmt-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 700;
  flex-shrink: 0;
}
.user-mgmt-info { flex: 1; min-width: 0; }
.user-mgmt-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
}
.user-mgmt-detail {
  font-size: 12px;
  color: var(--text-secondary);
}
.user-mgmt-actions {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}

/* ====== Group Checkbox Grid ====== */
.group-checkbox-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 8px;
  margin-top: 4px;
}

/* ====== 用户组别分录（所属项目 / 所属分组 / 是否组长） ====== */
.membership-grid {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 4px;
}
.membership-row {
  display: grid;
  grid-template-columns: 1fr 1fr auto auto;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface);
}
.membership-row .mem-project,
.membership-row .mem-group {
  width: 100%;
}
.mem-leader-wrap {
  margin: 0;
  white-space: nowrap;
}
@media (max-width: 640px) {
  .membership-row {
    grid-template-columns: 1fr 1fr;
  }
  .mem-leader-wrap,
  .membership-row .mem-remove {
    grid-column: span 1;
  }
}
.group-checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: 13px;
  user-select: none;
}
.group-checkbox-label:hover {
  border-color: var(--primary-light);
  background: var(--surface-hover);
}
.group-checkbox-label:has(.group-checkbox:checked) {
  border-color: var(--primary);
  background: rgba(99, 102, 241, 0.08);
}
.group-checkbox {
  display: none;
}
.group-checkbox-box {
  width: 18px;
  height: 18px;
  border-radius: 4px;
  border: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}
.group-checkbox:checked + .group-checkbox-box {
  background: var(--primary);
  border-color: var(--primary);
}
.group-checkbox:checked + .group-checkbox-box::after {
  content: '';
  width: 10px;
  height: 10px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center no-repeat;
}
.group-checkbox-text {
  font-weight: 500;
  color: var(--text);
}

[data-theme="dark"] .group-checkbox-label:has(.group-checkbox:checked) {
  background: rgba(99, 102, 241, 0.15);
}

/* ====== Avatar Upload ====== */
.avatar-upload-area {
  display: flex;
  align-items: center;
  gap: 16px;
}
.avatar-preview {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  font-weight: 700;
  flex-shrink: 0;
  overflow: hidden;
  border: 2px solid var(--border);
  transition: all var(--transition-fast);
}
.avatar-preview-img {
  width: 80px;
  height: 80px;
  object-fit: cover;
  border-radius: 50%;
}
.avatar-preview-default {
  font-size: 28px;
  font-weight: 700;
  color: #fff;
}
.avatar-upload-controls {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.user-mgmt-avatar-img {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
}

/* ====== Batch Checkbox (User & Task) ====== */
.user-mgmt-checkbox {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.user-mgmt-checkbox input[type=checkbox],
.task-row-checkbox,
#taskSelectAll {
  width: 16px;
  height: 16px;
  accent-color: var(--primary);
  cursor: pointer;
}
.user-mgmt-card.selected {
  border-color: var(--primary);
  background: rgba(99, 102, 241, 0.06);
}
[data-theme="dark"] .user-mgmt-card.selected {
  background: rgba(99, 102, 241, 0.12);
}

/* ====== Drill-through clickable elements ====== */
.stat-card.clickable-stat {
  cursor: pointer;
}
.stat-card.clickable-stat:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}
.stat-card.clickable-stat:active {
  transform: translateY(-1px);
}
.stat-drill-hint {
  font-size: 11px;
  color: var(--primary);
  font-weight: 500;
  margin-top: 6px;
  opacity: 0;
  transition: opacity var(--transition-fast);
}
.stat-card.clickable-stat:hover .stat-drill-hint {
  opacity: 1;
}

.stats-row.clickable-stats-row {
  cursor: pointer;
}
.stats-row.clickable-stats-row:hover {
  border-color: var(--primary);
  background: rgba(99, 102, 241, 0.06);
  transform: translateX(6px);
}
[data-theme="dark"] .stats-row.clickable-stats-row:hover {
  background: rgba(99, 102, 241, 0.12);
}
.stats-row.clickable-stats-row:active {
  transform: translateX(2px);
}

/* ====== Modal Actions Bar ====== */
.modal-actions {
  display: flex;
  gap: 12px;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}
.modal-actions .spacer { flex: 1; }

/* ====== 导入方式选择（v1.1.19） ====== */
.radio-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 10px;
  cursor: pointer;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}
.radio-row:hover { border-color: var(--primary); background: var(--surface-hover); }
.radio-row input[type=radio] { margin-top: 3px; accent-color: var(--primary); }
.radio-row span { font-size: 14px; color: var(--text); line-height: 1.5; }
.radio-row small { display: block; font-size: 12px; color: var(--text-muted); margin-top: 2px; }

/* =========================================================
   周报生成（v1.1.13）—— 唤起本机 WorkBuddy
   ========================================================= */
.weekly-wrap { max-width: 960px; margin: 0 auto; }
.weekly-head {
  display: flex; align-items: flex-start; justify-content: space-between;
  gap: 16px; margin-bottom: 18px;
}
.weekly-title { font-size: 22px; font-weight: 700; margin: 0; }
.weekly-sub { margin: 6px 0 0; color: var(--text-secondary); font-size: 13.5px; line-height: 1.7; max-width: 640px; }
.weekly-badge {
  display: inline-flex; align-items: center; gap: 6px; flex-shrink: 0;
  padding: 7px 12px; border-radius: 999px; font-size: 12.5px; font-weight: 600;
  color: var(--primary); background: rgba(99,102,241,0.10); border: 1px solid rgba(99,102,241,0.25);
}
.weekly-card { padding: 22px; margin-bottom: 18px; }
.weekly-controls { display: flex; flex-wrap: wrap; gap: 18px; align-items: flex-end; }
.weekly-field { display: flex; flex-direction: column; gap: 8px; }
.weekly-field-week { min-width: 200px; }
.weekly-week-hint { font-size: 11.5px; color: var(--text-muted); }
.weekly-tabs { display: inline-flex; background: var(--surface-hover); border-radius: var(--radius-sm); padding: 4px; gap: 4px; }
.weekly-tab {
  border: none; background: transparent; cursor: pointer; padding: 8px 16px;
  border-radius: 6px; font-size: 13.5px; color: var(--text-secondary); font-weight: 600;
  transition: all .2s ease;
}
.weekly-tab:hover { color: var(--text); }
.weekly-tab.active { background: var(--surface); color: var(--primary); box-shadow: 0 1px 3px rgba(0,0,0,0.08); }

.weekly-actions { display: flex; gap: 12px; margin-top: 20px; flex-wrap: wrap; }
.weekly-cta {
  position: relative; overflow: hidden;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%) !important;
  box-shadow: 0 8px 24px rgba(99,102,241,0.35);
  transition: transform .3s cubic-bezier(0.16,1,0.3,1), box-shadow .3s ease;
  display: inline-flex; align-items: center; gap: 8px;
}
.weekly-cta:hover { transform: translateY(-2px) scale(1.02); box-shadow: 0 12px 30px rgba(99,102,241,0.45); }
.weekly-cta:active { transform: translateY(0) scale(0.99); }
.weekly-cta.loading { opacity: .75; pointer-events: none; }

.weekly-result { margin-bottom: 16px; }
.weekly-result-card {
  display: flex; gap: 14px; padding: 18px 20px; align-items: flex-start;
  border: 1px solid rgba(16,185,129,0.35); background: rgba(16,185,129,0.06);
}
.weekly-result-icon {
  flex-shrink: 0; width: 40px; height: 40px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: rgba(16,185,129,0.15); color: var(--success);
}
.weekly-result-title { font-size: 15px; font-weight: 700; }
.weekly-result-desc { font-size: 13px; color: var(--text-secondary); line-height: 1.7; margin-top: 4px; }
.weekly-result-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 12px; }
.weekly-result-tip { font-size: 12px; color: var(--text-muted); margin-top: 10px; line-height: 1.6; }

/* ====== 周报：帮助按钮 + 预览（v1.1.16 重做 UI） ====== */
.weekly-help-btn {
  width: 34px; height: 34px; border-radius: 50%; flex-shrink: 0;
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--text-secondary); background: var(--surface-hover);
  border: 1px solid var(--border-light); cursor: pointer;
  transition: all var(--transition-fast);
}
.weekly-help-btn:hover { color: var(--primary); background: rgba(99,102,241,0.10); border-color: rgba(99,102,241,0.30); transform: translateY(-1px); }

.weekly-preview { margin-bottom: 16px; }
.weekly-preview-loading, .weekly-preview-error {
  display: flex; align-items: center; gap: 8px; padding: 20px 22px; color: var(--text-secondary); font-size: 14px;
}
.weekly-preview-error { color: var(--danger); }
.spinner-sm {
  width: 14px; height: 14px; border-radius: 50%;
  border: 2px solid var(--border-light); border-top-color: var(--primary);
  animation: spin .7s linear infinite; flex-shrink: 0;
}
@keyframes spin { to { transform: rotate(360deg); } }

.weekly-preview-card { padding: 20px 22px; }
.weekly-preview-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 16px; }
.weekly-preview-id { display: flex; align-items: center; gap: 12px; }
.weekly-preview-avatar {
  width: 40px; height: 40px; border-radius: 12px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; font-weight: 700; color: #fff;
  background: linear-gradient(135deg, var(--primary), #6366f1);
}
.weekly-preview-name { font-size: 17px; font-weight: 700; }
.weekly-preview-meta { font-size: 12.5px; color: var(--text-muted); margin-top: 3px; }
.weekly-preview-count { font-size: 12.5px; color: var(--primary); background: rgba(99,102,241,0.10); padding: 5px 12px; border-radius: 999px; white-space: nowrap; }

.weekly-stats { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; margin-bottom: 16px; }
.weekly-stat {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px;
  padding: 14px 8px; border-radius: var(--radius-sm); background: var(--surface-hover);
  border: 1px solid var(--border-light);
}
.weekly-stat-val { font-size: 22px; font-weight: 800; line-height: 1; }
.weekly-stat-label { font-size: 12px; color: var(--text-secondary); }

.weekly-notes { margin-top: 2px; padding-top: 16px; border-top: 1px solid var(--border-light); }
.weekly-notes-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 10px; flex-wrap: wrap; }
.weekly-notes-title { font-size: 13px; font-weight: 600; color: var(--text-secondary); }
.weekly-notes-tag { font-size: 11px; color: var(--text-muted); background: var(--surface-hover); border: 1px solid var(--border-light); padding: 3px 9px; border-radius: 999px; }
.weekly-notes-list { margin: 0; padding-left: 18px; max-height: 220px; overflow-y: auto; }
.weekly-notes-list li { font-size: 13px; color: var(--text); line-height: 1.7; padding: 3px 0; }
.weekly-notes-empty { font-size: 13px; color: var(--text-muted); padding: 6px 0; }

/* ====== 周报：使用提示弹窗 ====== */
.weekly-tips-modal { max-width: 520px; }
.weekly-tips-body { padding-top: 2px; }
.weekly-tips-list { margin: 0; padding-left: 20px; display: flex; flex-direction: column; gap: 12px; }
.weekly-tips-list li { font-size: 13.5px; color: var(--text); line-height: 1.7; }
.weekly-tips-list li b { color: var(--primary); font-weight: 700; }

@media (max-width: 720px) {
  .weekly-controls { flex-direction: column; align-items: stretch; }
  .weekly-stats { grid-template-columns: repeat(2, 1fr); }
}

/* ====== 分支任务（需求②/③）样式 ====== */

/* ====== v1.2.7：任务明细主/子任务关联样式 ====== */
/* v1.2.8：子任务行 L 形分支连接线（伪元素 ┌ 形，表达「从父级延伸下来」） */
/* v1.2.9：缩进区容器（含祖先竖线 + 本级连接线，宽 = 缩进 + 16px 连接区） */
.tree-guides {
  display: inline-block;
  position: relative;
  height: 18px;
  vertical-align: middle;
  flex-shrink: 0;
}
/* 祖先层级竖线：祖先后续还有兄弟时贯穿（k*22+8 对齐父级节点列） */
.tree-vline {
  position: absolute;
  top: -8px;
  bottom: -8px;
  border-left: 1.5px solid var(--text-muted, #94a3b8);
  opacity: 0.7;
  pointer-events: none;
}
/* v1.2.8/v1.2.9：本级连接线——└（最后子，竖线截断）/ ├（中间子，竖线贯穿） */
.task-branch-connector {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 14px;
  pointer-events: none;
}
/* 竖线（默认贯穿整行 = ├） */
.task-branch-connector::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 1px;
  border-left: 1.5px solid var(--text-muted, #94a3b8);
  opacity: 0.7;
}
/* 横线：从父列连到本行圆点/箭头 */
.task-branch-connector::after {
  content: '';
  position: absolute;
  top: 8px;
  left: 1px;
  right: 0;
  border-top: 1.5px solid var(--text-muted, #94a3b8);
  opacity: 0.7;
}
/* 最后子：竖线在横线处截断 → └ */
.task-branch-connector.branch-last::before {
  bottom: 9px;
}
/* 任务表树形：折叠/展开箭头 */
.tree-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  margin-right: 2px;
  font-size: 11px;
  line-height: 1;
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: 4px;
  user-select: none;
  vertical-align: middle;
}
.tree-toggle:hover {
  background: var(--primary-soft, #eef2ff);
  color: var(--primary, #6366f1);
}
/* 叶子节点（无子任务的子任务）状态色圆点 */
.tree-leaf-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  margin: 0 8px 0 4px;
  border-radius: 50%;
  background: var(--danger, #ef4444);
  box-shadow: 0 0 0 2px rgba(239, 68, 68, 0.15);
  vertical-align: middle;
}
/* 主任务链接（列表列 + 详情弹窗） */
.task-link {
  color: var(--primary, #6366f1);
  text-decoration: none;
  cursor: pointer;
  font-weight: 500;
}
.task-link:hover { text-decoration: underline; }
/* 「无主任务」占位 */
.parent-none { color: var(--text-muted); }
/* 树形行：子任务名称缩进后的标题文字 */
.task-title-text { vertical-align: middle; }
/* 仅因子任务命中筛选而保留的祖先行（半透明提示） */
.row-filter-ancestor { opacity: 0.55; }
/* 表单字段提示文字 */
.field-hint {
  margin-top: 4px;
  font-size: 11.5px;
  line-height: 1.6;
  color: var(--text-muted);
}
/* 上级任务字段锁定提示 */
.field-lock-tip {
  margin-left: 6px;
  padding: 1px 7px;
  font-size: 10.5px;
  font-weight: 400;
  color: #64748b;
  background: var(--surface-hover);
  border: 1px solid var(--border);
  border-radius: 10px;
}

/* 任务表中「分支」标记小药丸 */
.branch-tag {
  display: inline-block;
  margin-right: 6px;
  padding: 1px 7px;
  font-size: 11px;
  font-weight: 700;
  line-height: 1.6;
  color: #b45309;
  background: #fef3c7;
  border: 1px solid #fde68a;
  border-radius: 10px;
  vertical-align: middle;
}

/* 新建/编辑任务表单：分支模式提示框 */
.branch-hint {
  margin: 0 0 14px;
  padding: 10px 12px;
  font-size: 12.5px;
  line-height: 1.6;
  color: #92400e;
  background: #fffbeb;
  border: 1px solid #fde68a;
  border-left: 3px solid #f59e0b;
  border-radius: 8px;
}
.branch-hint b { color: #b45309; }

/* ====== 甘特图：父子层级（需求③） ====== */
/* 顶层（维度节点：项目/小组/用户）加粗；深层逐级减淡以体现嵌套 */
.gantt-label-row.depth-0 { font-weight: 700; }
.gantt-label-row.depth-1 { font-weight: 600; }
.gantt-label-row.depth-2 { font-weight: 500; color: var(--text-secondary); }
.gantt-label-row.depth-3,
.gantt-label-row.depth-4,
.gantt-label-row.depth-5 { font-weight: 400; color: var(--text-muted); }

/* 层级缩进引导线：随深度加深的左侧强调边，强化父子视觉关系。
   仅用 border-left（不动 margin/padding），避免破坏 240px 固定列宽与行高对齐；
   JS 已通过内联 padding-left 实现逐级缩进，这里只补一条视觉引导线。 */
.gantt-label-row.depth-1 { border-left: 2px solid var(--border-light); }
.gantt-label-row.depth-2 { border-left: 2px solid var(--border); }
.gantt-label-row.depth-3 { border-left: 2px solid var(--primary-soft, #cbd5e1); }

/* 任务名称：超长省略，配合 title 悬浮查看全称 */
.gantt-label-name {
  flex: 1;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* 分支标记 ⑂ */
.gantt-branch-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-left: 2px;
  font-size: 13px;
  font-weight: 700;
  color: #f59e0b;
  flex-shrink: 0;
}

/* 分支（非顶层）甘特条轻微降透明度，与父条区分 */
.gantt-row.depth-1 .gantt-bar,
.gantt-row.depth-2 .gantt-bar { opacity: 0.92; }

/* ====== 容器模式：维度节点（项目/小组/人员）作为子行的视觉容器 ====== */
/* 所有子行（depth≥1）继承所属维度节点的颜色色背景，形成视觉分组 */
.gantt-row[data-group-color] { background: var(--group-bg, transparent); }
.gantt-label-row[data-group-color] { background: var(--group-bg, transparent); }
/* 顶层维度条：高度增加、字体加重、突出为"组标题" */
.gantt-bar.parent {
  height: 26px;
  top: 7px;
  font-weight: 700;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12);
}
/* 同组最后一行不显示底边，避免与下一组双重边框 */
.gantt-row[data-group-color][data-last-in-group="1"] { border-bottom-color: transparent; }
.gantt-label-row[data-group-color][data-last-in-group="1"] { border-bottom-color: transparent; }
/* 同组第一行顶部加一道与组色匹配的弱边，强化容器感 */
.gantt-row[data-group-color][data-first-in-group="1"] {
  box-shadow: inset 0 2px 0 var(--group-accent, transparent);
}
.gantt-label-row[data-group-color][data-first-in-group="1"] {
  box-shadow: inset 0 2px 0 var(--group-accent, transparent);
}

/* ====== 条右端截止标记（▸ 小三角）+ 悬停截止日期浮签 ====== */
.gantt-bar-end-marker {
  position: absolute;
  right: -1px;
  top: 50%;
  transform: translateY(-50%);
  width: 0;
  height: 0;
  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
  border-left: 7px solid rgba(255, 255, 255, 0.92);
  filter: drop-shadow(0 0 2px rgba(0,0,0,0.2));
  pointer-events: none;
  z-index: 3;
}
.gantt-bar-end-chip {
  position: fixed;
  z-index: 1000;
  display: none;
  background: #1e293b;
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  line-height: 1.4;
  padding: 3px 8px;
  border-radius: 6px;
  white-space: nowrap;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.28);
  pointer-events: none;
}
.gantt-bar-end-chip.show { display: block; }

/* ====== v1.2.0 甘特图结构性重构：新元素样式 ====== */

/* 跨年表头：仅数据跨年时显示 */
.gantt-header-year {
  display: flex;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: relative;
}
.gantt-header-year-cell {
  flex: 0 0 auto;
  padding: 4px 8px;
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  border-right: 1px solid var(--border-light);
  background: var(--surface);
  text-align: center;
  box-sizing: border-box;
}

/* 末月内“无任务”淡灰带：6% 透明叠加 + 右下小字“无任务” */
.gantt-month-overlay {
  position: absolute;
  top: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.06);
  pointer-events: none;
  display: flex;
  align-items: flex-end;
  justify-content: flex-end;
  padding: 4px 8px;
  box-sizing: border-box;
  z-index: 1;
}
.gantt-month-empty-label {
  font-size: 10px;
  color: var(--text-muted);
  font-weight: 500;
  user-select: none;
}