/* ============================================================
   TODO · Things 3 风格设计系统
   4 套主题 · 8 套设计令牌
   ============================================================ */

/* ===== 浅色主题（默认 · Things 3 暖白底） ===== */
:root {
  --color-bg: #FAFAF7;
  --color-surface: #FFFFFF;
  --color-surface-hover: #F5F5F0;
  --color-surface-active: #EBEBE5;
  --color-text: #2C2C2C;
  --color-text-secondary: #6E6E73;
  --color-text-tertiary: #A0A0A5;
  --color-border: #E5E5E0;
  --color-border-strong: #D5D5D0;
  --color-overlay: rgba(0, 0, 0, 0.32);

  --color-area-1: #E8BCC8; --color-area-2: #B6D2DE; --color-area-3: #BFDDC2;
  --color-area-4: #EBCDA8; --color-area-5: #CBBFD9; --color-area-6: #EBD8AB;
  --color-area-7: #B4CCBE; --color-area-8: #ECC2AC;

  --color-q1: #C7574F; --color-q2: #5A9B6E;
  --color-q3: #C98841; --color-q4: #8E8E93;
  --color-p-none: #C7C7CC;
  --color-q1-bg: rgba(199, 87, 79, 0.12);
  --color-q2-bg: rgba(90, 155, 110, 0.12);
  --color-q3-bg: rgba(201, 136, 65, 0.12);
  --color-q4-bg: rgba(142, 142, 147, 0.12);

  --space-1: 4px; --space-2: 8px; --space-3: 12px; --space-4: 16px;
  --space-5: 20px; --space-6: 24px; --space-7: 32px; --space-8: 48px;

  --radius-sm: 4px; --radius: 8px; --radius-lg: 12px;

  --font-body: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
  --font-heading: -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC", "Segoe UI", sans-serif;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04);
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);

  --transition: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: 100ms cubic-bezier(0.16, 1, 0.3, 1);

  --sidebar-width: 200px;
  --detail-width: 380px;
  --topbar-height: 48px;
  --banner-height: 110px;
}

/* ===== Dark 主题（Apple 风格暗色） ===== */
[data-theme="dark"] {
  --color-bg: #1C1C1E;
  --color-surface: #2C2C2E;
  --color-surface-hover: #3A3A3C;
  --color-surface-active: #48484A;
  --color-text: #F2F2F7;
  --color-text-secondary: #AEAEB2;
  --color-text-tertiary: #6E6E73;
  --color-border: #3A3A3C;
  --color-border-strong: #48484A;
  --color-overlay: rgba(0, 0, 0, 0.6);
  --color-p-none: #48484A;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.2);
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
}

/* ===== Aurora 主题（极光色） ===== */
[data-theme="aurora"] {
  --color-bg: #0F1023;
  --color-surface: #1A1B3A;
  --color-surface-hover: #252752;
  --color-surface-active: #2F3070;
  --color-text: #E8E8FF;
  --color-text-secondary: #A8A8D8;
  --color-text-tertiary: #6868A8;
  --color-border: #2D2D5C;
  --color-border-strong: #3D3D7C;
  --color-overlay: rgba(0, 0, 0, 0.7);
  --color-p-none: #2D2D5C;
  --color-q1: #C7829B; --color-q2: #6BAA85; --color-q3: #9579B8; --color-q4: #6B7280;
  --color-q1-bg: rgba(199, 130, 155, 0.15);
  --color-q2-bg: rgba(107, 170, 133, 0.15);
  --color-q3-bg: rgba(149, 121, 184, 0.15);
  --color-q4-bg: rgba(107, 114, 128, 0.15);
  --shadow-lg: 0 8px 32px rgba(107, 170, 133, 0.15);
}

/* ===== Dusk 主题（暖橙金黄） ===== */
[data-theme="dusk"] {
  --color-bg: #FFE8D6;
  --color-surface: #FFF4E6;
  --color-surface-hover: #FFE4C4;
  --color-surface-active: #FFD4A3;
  --color-text: #5D3A1A;
  --color-text-secondary: #8B5A2B;
  --color-text-tertiary: #B07D4A;
  --color-border: #F5D5A8;
  --color-border-strong: #E5B57A;
  --color-overlay: rgba(45, 25, 10, 0.35);
  --color-p-none: #D5B58A;
  --color-q1: #B66B5F; --color-q2: #C99572; --color-q3: #B58865; --color-q4: #8B6F47;
  --shadow-sm: 0 1px 3px rgba(139, 90, 43, 0.06);
  --shadow: 0 2px 8px rgba(139, 90, 43, 0.08);
  --shadow-lg: 0 8px 32px rgba(182, 107, 95, 0.15);
}

/* ============================================================
   Base
   ============================================================ */
* { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0;
  height: 100%;
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
body {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: background var(--transition), color var(--transition);
}
button { font-family: inherit; cursor: pointer; border: none; background: transparent; color: inherit; padding: 0; }
input, textarea { font-family: inherit; color: inherit; }
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-thumb { background: var(--color-border-strong); border-radius: 4px; }
::-webkit-scrollbar-track { background: transparent; }
kbd {
  display: inline-block;
  padding: 1px 6px;
  font-size: 11px;
  font-family: ui-monospace, monospace;
  background: var(--color-surface-active);
  border: 1px solid var(--color-border);
  border-radius: 3px;
  color: var(--color-text-secondary);
}
code {
  font-family: ui-monospace, monospace;
  font-size: 12px;
  background: var(--color-surface-active);
  padding: 1px 4px;
  border-radius: 3px;
}

/* ============================================================
   Banner
   ============================================================ */
.ukiyo-banner {
  height: var(--banner-height);
  flex-shrink: 0;
  background: var(--color-surface);
  cursor: pointer;
  outline: none;
  transition: opacity 200ms ease;
  position: relative;
  overflow: hidden;
}
.ukiyo-banner:focus-visible { box-shadow: inset 0 0 0 2px var(--color-q2); }
.ukiyo-banner svg { width: 100%; height: 100%; display: block; }

/* ============================================================
   Topbar
   ============================================================ */
.topbar {
  height: var(--topbar-height);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0 var(--space-4);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}
.topbar-brand { display: flex; align-items: center; gap: var(--space-2); font-weight: 600; }
.brand-mark {
  width: 14px; height: 14px;
  border-radius: 4px;
  background: linear-gradient(135deg, var(--color-q1), var(--color-q2));
}
.brand-name { font-family: var(--font-heading); font-size: 14px; letter-spacing: 0.5px; }
.topbar-spacer { flex: 1; }
.topbar-btn {
  width: 32px; height: 32px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: var(--radius);
  font-size: 15px;
  color: var(--color-text-secondary);
  transition: background var(--transition-fast), color var(--transition-fast);
}
.topbar-btn:hover { background: var(--color-surface-hover); color: var(--color-text); }

/* ============================================================
   Layout (3 栏)
   ============================================================ */
.layout {
  flex: 1;
  display: flex;
  min-height: 0;
}

/* ===== Sidebar ===== */
.sidebar {
  width: var(--sidebar-width);
  flex-shrink: 0;
  background: var(--color-surface);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.sidebar-views { padding: var(--space-3) var(--space-2); flex-shrink: 0; }
.sidebar-divider {
  height: 1px;
  margin: 0 var(--space-3);
  background: var(--color-border);
}
.sidebar-areas-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-4) var(--space-2);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  color: var(--color-text-tertiary);
  flex-shrink: 0;
}
.sidebar-areas {
  flex: 1;
  overflow-y: auto;
  padding: 0 var(--space-2) var(--space-3);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--color-text-secondary);
  font-size: 13px;
  user-select: none;
  transition: background var(--transition-fast), color var(--transition-fast);
}
.nav-item:hover { background: var(--color-surface-hover); color: var(--color-text); }
.nav-item.active { background: var(--color-surface-active); color: var(--color-text); font-weight: 500; }
.nav-item .nav-icon { font-size: 14px; width: 18px; text-align: center; flex-shrink: 0; }
.nav-item .nav-label { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.nav-item .nav-count {
  font-size: 11px;
  color: var(--color-text-tertiary);
  background: var(--color-surface-active);
  padding: 1px 6px;
  border-radius: 8px;
  min-width: 18px;
  text-align: center;
}

.area-group { margin-bottom: var(--space-1); }
.area-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  user-select: none;
  transition: background var(--transition-fast);
}
.area-header:hover { background: var(--color-surface-hover); }
.area-header.active { background: var(--color-surface-active); }
.area-dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.area-caret {
  font-size: 10px;
  color: var(--color-text-tertiary);
  width: 12px;
  text-align: center;
  transition: transform var(--transition-fast);
}
.area-group.collapsed .area-caret { transform: rotate(-90deg); }
.area-group.collapsed .project-list { display: none; }
.project-list { padding-left: 16px; }
.project-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 5px 10px 5px 6px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 12.5px;
  color: var(--color-text-secondary);
  user-select: none;
  transition: background var(--transition-fast), color var(--transition-fast);
}
.project-item:hover { background: var(--color-surface-hover); color: var(--color-text); }
.project-item.active { background: var(--color-surface-active); color: var(--color-text); font-weight: 500; }
.project-kind { font-size: 9px; color: var(--color-text-tertiary); padding: 1px 4px; background: var(--color-surface); border-radius: 3px; border: 1px solid var(--color-border); flex-shrink: 0; }
.project-count { font-size: 11px; color: var(--color-text-tertiary); margin-left: auto; }

/* sidebar 侧栏删除按钮（hover 才显示） */
.sidebar-del-btn {
  width: 18px;
  height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: 14px;
  line-height: 1;
  color: var(--color-text-tertiary);
  background: transparent;
  border: none;
  cursor: pointer;
  opacity: 0;
  margin-left: 4px;
  flex-shrink: 0;
  transition: background var(--transition-fast), color var(--transition-fast), opacity var(--transition-fast);
}
.area-header:hover .sidebar-del-btn,
.project-item:hover .sidebar-del-btn { opacity: 1; }
.sidebar-del-btn:hover {
  color: white;
  background: var(--color-q1);
}

/* ============================================================
   TaskList
   ============================================================ */
.tasklist {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  background: var(--color-bg);
}
.tasklist-header {
  padding: var(--space-5) var(--space-6) var(--space-3);
  flex-shrink: 0;
}
.tasklist-title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: -0.2px;
}
.tasklist-subtitle {
  font-size: 12px;
  color: var(--color-text-tertiary);
  margin-top: 2px;
}
.tasklist-body {
  flex: 1;
  overflow-y: auto;
  padding: 0 var(--space-4) var(--space-7);
}

/* ===== 任务分组（按 Project） ===== */
.task-group {
  margin-bottom: var(--space-5);
}
.task-group-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0 var(--space-2);
  margin-bottom: var(--space-2);
  font-size: 12px;
  font-weight: 600;
  color: var(--color-text-secondary);
  letter-spacing: 0.3px;
}
.task-group-header .area-dot { width: 8px; height: 8px; }
.task-group-header .count { font-weight: 400; color: var(--color-text-tertiary); margin-left: auto; }

/* ===== 任务卡片 ===== */
.task-item {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  padding: 8px 10px 8px 14px;
  margin-bottom: 2px;
  background: var(--color-surface);
  border-radius: var(--radius);
  cursor: pointer;
  user-select: none;
  transition: background var(--transition-fast), transform var(--transition-fast);
}
.task-item::before {
  content: '';
  position: absolute;
  left: 4px; top: 8px; bottom: 8px;
  width: 3px;
  border-radius: 2px;
  background: var(--color-p-none);
}
.task-item[data-q="Q1"]::before { background: var(--color-q1); }
.task-item[data-q="Q2"]::before { background: var(--color-q2); }
.task-item[data-q="Q3"]::before { background: var(--color-q3); }
.task-item[data-q="Q4"]::before { background: var(--color-q4); }
.task-item:hover { background: var(--color-surface-hover); }
.task-item.selected { background: var(--color-surface-active); }
.task-item.dragging { opacity: 0.5; }
.task-item.completed .task-title { text-decoration: line-through; color: var(--color-text-tertiary); }
.task-check {
  width: 16px; height: 16px;
  border: 1.5px solid var(--color-border-strong);
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 2px;
  display: inline-flex; align-items: center; justify-content: center;
  transition: background var(--transition-fast), border-color var(--transition-fast);
}
.task-item.completed .task-check {
  background: var(--color-q2);
  border-color: var(--color-q2);
  color: white;
}
.task-item.completed .task-check::after {
  content: '✓';
  font-size: 11px;
  font-weight: bold;
}
.task-body { flex: 1; min-width: 0; }
.task-title { font-size: 13.5px; line-height: 1.45; word-break: break-word; }
.task-meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-top: 3px;
  font-size: 11.5px;
  color: var(--color-text-tertiary);
  flex-wrap: wrap;
}
.task-meta-item { display: inline-flex; align-items: center; gap: 3px; }
.task-meta-item.overdue { color: var(--color-q1); font-weight: 500; }
.task-meta-item.today { color: var(--color-q2); font-weight: 500; }
.task-tag {
  display: inline-block;
  padding: 0 6px;
  background: var(--color-surface-active);
  border-radius: 8px;
  font-size: 11px;
  color: var(--color-text-secondary);
}

/* ===== 任务删除按钮 ===== */
.task-del-btn {
  flex-shrink: 0;
  align-self: center;
  width: 26px;
  height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: 14px;
  line-height: 1;
  color: var(--color-q1);
  background: var(--color-q1-bg);
  border: 1px solid transparent;
  margin-left: 8px;
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}
.task-del-btn:hover {
  color: white;
  background: var(--color-q1);
  border-color: var(--color-q1);
  transform: scale(1.1);
}
.task-del-btn:active { transform: scale(0.95); }

/* ===== 四象限矩阵 (Inbox) ===== */
.inbox-matrix {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
  padding: 0 var(--space-2);
}

/* 收件箱线性列表 */
.inbox-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 0 var(--space-2);
}

/* ===== 四象限视图（独立页面）===== */
.quadrant-page {
  display: grid;
  grid-template-rows: 1fr auto;
  grid-template-columns: 24px 1fr;
  gap: var(--space-3);
  padding: 0 var(--space-2);
  position: relative;
}
.quadrant-unclassified {
  grid-column: 2;
  grid-row: 2;
  min-height: 88px;
  border-style: dashed;
  border-color: var(--color-border-strong);
  background: var(--color-bg);
}
.quadrant-unclassified .matrix-cell-tasks {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 4px;
}
.quadrant-grid {
  grid-column: 2;
  grid-row: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
  min-height: 360px;
}
.quadrant-axis-hint {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--color-text-tertiary);
  padding: 0 4px;
  margin-bottom: -4px;
}
.quadrant-axis-hint-vertical {
  grid-column: 1;
  grid-row: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  font-size: 11px;
  color: var(--color-text-tertiary);
  padding: 12px 0;
  position: relative;
}
.quadrant-axis-hint-vertical::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 16px;
  bottom: 16px;
  width: 1px;
  background: var(--color-border);
  transform: translateX(-50%);
}
.quadrant-dbl-hint {
  text-align: center;
  font-size: 11.5px;
  color: var(--color-text-tertiary);
  padding: 8px 0 4px;
  opacity: 0.8;
}

/* 双击空白建任务视觉提示 */
.matrix-cell {
  cursor: default;
  transition: background var(--transition-fast);
}
.matrix-cell:hover {
  background: var(--color-surface-hover);
}
.matrix-cell {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-3);
  min-height: 160px;
  transition: background var(--transition-fast), border-color var(--transition-fast);
}
.matrix-cell.drag-over { background: var(--color-surface-hover); border-color: var(--color-border-strong); }
.matrix-cell-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--color-border);
}
.matrix-cell-dot { width: 8px; height: 8px; border-radius: 50%; }
.matrix-cell[data-q="Q1"] .matrix-cell-dot { background: var(--color-q1); }
.matrix-cell[data-q="Q2"] .matrix-cell-dot { background: var(--color-q2); }
.matrix-cell[data-q="Q3"] .matrix-cell-dot { background: var(--color-q3); }
.matrix-cell[data-q="Q4"] .matrix-cell-dot { background: var(--color-q4); }
.matrix-cell[data-q="none"] .matrix-cell-dot { background: var(--color-p-none); }
.matrix-cell-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: 0.3px;
}
.matrix-cell-sub { font-size: 11px; color: var(--color-text-tertiary); margin-left: auto; }
.matrix-cell-tasks { display: flex; flex-direction: column; gap: 2px; }

.matrix-task {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 5px 6px;
  border-radius: var(--radius-sm);
  font-size: 12.5px;
  cursor: pointer;
  user-select: none;
  transition: background var(--transition-fast);
}
.matrix-task:hover { background: var(--color-surface-hover); }
.matrix-task.selected { background: var(--color-surface-active); }
.matrix-task .task-check { width: 14px; height: 14px; }
.matrix-task.completed .matrix-task-title {
  text-decoration: line-through;
  color: var(--color-text-tertiary);
}
.matrix-task-meta {
  font-size: 10.5px;
  color: var(--color-text-tertiary);
  margin-left: auto;
  display: flex; align-items: center; gap: 4px;
}
.matrix-task-meta .task-tag { font-size: 10px; padding: 0 4px; }

/* ============================================================
   Detail
   ============================================================ */
.detail {
  width: var(--detail-width);
  flex-shrink: 0;
  background: var(--color-surface);
  border-left: 1px solid var(--color-border);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}
.detail-empty {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--color-text-tertiary);
  font-size: 13px;
  padding: var(--space-6);
}
.detail-empty-icon { font-size: 40px; margin-bottom: var(--space-3); opacity: 0.5; }

.detail-content { padding: var(--space-5); }
.detail-title {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 600;
  line-height: 1.4;
  width: 100%;
  padding: 0;
  border: none;
  background: transparent;
  outline: none;
  resize: none;
  color: var(--color-text);
  margin-bottom: var(--space-4);
  min-height: 26px;
}
.detail-section { margin-bottom: var(--space-4); }
.detail-label {
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-1);
}
.detail-textarea {
  width: 100%;
  min-height: 60px;
  padding: var(--space-2) var(--space-3);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 13px;
  outline: none;
  resize: vertical;
  font-family: inherit;
  color: var(--color-text);
  transition: border-color var(--transition-fast);
}
.detail-textarea:focus { border-color: var(--color-border-strong); }
.detail-row {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 12.5px;
  color: var(--color-text-secondary);
}
.detail-row strong { color: var(--color-text); font-weight: 500; }

.detail-quadrant-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2);
}
.detail-quadrant-btn {
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  font-size: 11.5px;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text-secondary);
  text-align: left;
  transition: all var(--transition-fast);
}
.detail-quadrant-btn:hover { background: var(--color-surface-hover); }
.detail-quadrant-btn.active[data-q="Q1"] { background: var(--color-q1-bg); border-color: var(--color-q1); color: var(--color-q1); }
.detail-quadrant-btn.active[data-q="Q2"] { background: var(--color-q2-bg); border-color: var(--color-q2); color: var(--color-q2); }
.detail-quadrant-btn.active[data-q="Q3"] { background: var(--color-q3-bg); border-color: var(--color-q3); color: var(--color-q3); }
.detail-quadrant-btn.active[data-q="Q4"] { background: var(--color-q4-bg); border-color: var(--color-q4); color: var(--color-q4); }
.detail-quadrant-btn.active:not([data-q]) { background: var(--color-surface-active); color: var(--color-text); }

.detail-checklist { list-style: none; padding: 0; margin: 0; }
.detail-checklist-item {
  display: flex; align-items: center; gap: var(--space-2);
  padding: 4px 0;
  font-size: 12.5px;
}
.detail-checklist-item.completed span { text-decoration: line-through; color: var(--color-text-tertiary); }
.detail-checklist-item .mini-check {
  width: 14px; height: 14px;
  border: 1.5px solid var(--color-border-strong);
  border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
}
.detail-checklist-item.completed .mini-check {
  background: var(--color-q2);
  border-color: var(--color-q2);
  color: white;
}
.detail-checklist-item.completed .mini-check::after { content: '✓'; font-size: 9px; font-weight: bold; }
.detail-checklist-item .cl-text { flex: 1; }
.detail-checklist-item .cl-del {
  font-size: 11px; color: var(--color-text-tertiary); padding: 0 4px;
  opacity: 0; transition: opacity var(--transition-fast);
}
.detail-checklist-item:hover .cl-del { opacity: 1; }
.detail-checklist-input {
  width: 100%;
  padding: 4px 0;
  font-size: 12.5px;
  background: transparent;
  border: none;
  outline: none;
  color: var(--color-text-secondary);
  font-style: italic;
}
.detail-checklist-input::placeholder { color: var(--color-text-tertiary); }

.detail-tags-row { display: flex; flex-wrap: wrap; gap: 4px; margin-top: var(--space-1); }
.detail-tag-chip {
  display: inline-flex; align-items: center; gap: 3px;
  padding: 2px 8px;
  background: var(--color-surface-active);
  border-radius: 10px;
  font-size: 11px;
  color: var(--color-text-secondary);
}
.detail-tag-chip .x { cursor: pointer; color: var(--color-text-tertiary); }

.detail-actions {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-5);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
}
.detail-action-btn {
  flex: 1;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}
.detail-action-btn:hover { background: var(--color-surface-hover); color: var(--color-text); }
.detail-action-btn.danger:hover { background: var(--color-q1-bg); color: var(--color-q1); border-color: var(--color-q1); }

/* ============================================================
   Magic Plus
   ============================================================ */
.magic-plus {
  position: fixed;
  right: calc(var(--detail-width) + var(--space-4));
  bottom: var(--space-5);
  width: 56px; height: 56px;
  border-radius: 50%;
  background: var(--color-q2);
  color: white;
  font-size: 28px;
  font-weight: 300;
  box-shadow: var(--shadow-lg);
  z-index: 90;
  display: inline-flex; align-items: center; justify-content: center;
  transition: transform var(--transition), background var(--transition), box-shadow var(--transition);
}
.magic-plus:hover { box-shadow: 0 12px 40px rgba(90, 155, 110, 0.4); }
.magic-plus.active {
  background: var(--color-q1);
  transform: rotate(45deg);
}
.magic-menu {
  position: fixed;
  right: calc(var(--detail-width) + var(--space-4));
  bottom: calc(var(--space-5) + 68px);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 4px;
  z-index: 90;
  min-width: 160px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.magic-menu button {
  padding: 8px 12px;
  text-align: left;
  font-size: 12.5px;
  border-radius: var(--radius-sm);
  color: var(--color-text);
  transition: background var(--transition-fast);
}
.magic-menu button:hover { background: var(--color-surface-hover); }

/* ============================================================
   Modal
   ============================================================ */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: var(--color-overlay);
  z-index: 100;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 12vh;
  backdrop-filter: blur(4px);
  animation: fadeIn 160ms ease;
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.modal {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 90%;
  max-width: 560px;
  padding: var(--space-5);
  animation: slideDown 200ms cubic-bezier(0.16, 1, 0.3, 1);
}
@keyframes slideDown {
  from { transform: translateY(-12px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* Quick Entry */
.modal-quick-entry { max-width: 640px; }
.qe-project-row {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
}
.qe-project-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.4px;
  text-transform: uppercase;
  color: var(--color-text-tertiary);
  flex-shrink: 0;
}
.qe-project-select {
  flex: 1;
  padding: 5px 8px;
  font-size: 12.5px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-family: inherit;
  outline: none;
  cursor: pointer;
}
.qe-project-select:focus { border-color: var(--color-q2); }
.qe-input {
  width: 100%;
  padding: 10px 12px;
  font-size: 15px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  outline: none;
  color: var(--color-text);
  transition: border-color var(--transition-fast);
}
.qe-input:focus { border-color: var(--color-q2); }
.qe-preview {
  margin-top: var(--space-3);
  padding: var(--space-3);
  background: var(--color-bg);
  border-radius: var(--radius);
  min-height: 60px;
  font-size: 12.5px;
}
.qe-preview-empty { color: var(--color-text-tertiary); font-style: italic; }
.qe-preview-row {
  display: flex; align-items: center; gap: var(--space-2);
  padding: 3px 0;
}
.qe-preview-icon { width: 18px; text-align: center; }
.qe-preview-key { color: var(--color-text-tertiary); min-width: 56px; }
.qe-preview-value { color: var(--color-text); }
.qe-preview-title { font-weight: 500; font-size: 13px; margin-bottom: var(--space-2); padding-bottom: var(--space-2); border-bottom: 1px solid var(--color-border); }
.qe-hint {
  margin-top: var(--space-3);
  display: flex; flex-wrap: wrap; gap: var(--space-3);
  font-size: 11px; color: var(--color-text-tertiary);
}
.qe-hint-syntax { flex: 1; min-width: 100%; line-height: 1.6; }

/* Command Palette */
.modal-cmd { max-width: 520px; padding: 0; overflow: hidden; }
.cmd-input {
  width: 100%;
  padding: 14px 16px;
  font-size: 14px;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--color-border);
  outline: none;
  color: var(--color-text);
}
.cmd-list { max-height: 400px; overflow-y: auto; padding: 4px; }
.cmd-section { padding: 6px 12px 2px; font-size: 10.5px; font-weight: 600; color: var(--color-text-tertiary); letter-spacing: 0.6px; text-transform: uppercase; }
.cmd-item {
  display: flex; align-items: center; gap: var(--space-3);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--color-text);
  cursor: pointer;
  user-select: none;
}
.cmd-item:hover, .cmd-item.active { background: var(--color-surface-active); }
.cmd-item .cmd-icon { width: 18px; text-align: center; color: var(--color-text-secondary); }
.cmd-item .cmd-shortcut { margin-left: auto; font-size: 11px; color: var(--color-text-tertiary); }
.cmd-empty { padding: var(--space-4); text-align: center; color: var(--color-text-tertiary); font-size: 12.5px; }

/* Prompt / Confirm */
.modal-prompt, .modal-confirm { max-width: 400px; }
.prompt-title, .confirm-title { margin: 0 0 var(--space-3); font-size: 15px; font-weight: 600; }
.confirm-message { margin: 0 0 var(--space-4); font-size: 13px; color: var(--color-text-secondary); }
.prompt-input {
  width: 100%;
  padding: 8px 12px;
  font-size: 14px;
  background: var(--color-bg);
  border: 1px solid var(--area-border, var(--color-border));
  border-radius: var(--radius);
  outline: none;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}
.prompt-input:focus { border-color: var(--color-q2); }
.prompt-extra { margin-bottom: var(--space-4); }
.prompt-extra-label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.4px;
  text-transform: uppercase;
  color: var(--color-text-tertiary);
  margin-bottom: 4px;
}
.prompt-select {
  width: 100%;
  padding: 8px 12px;
  font-size: 13px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  outline: none;
  color: var(--color-text);
  font-family: inherit;
  cursor: pointer;
}
.prompt-select:focus { border-color: var(--color-q2); }
.modal-actions { display: flex; justify-content: flex-end; gap: var(--space-2); }
.btn {
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  border: 1px solid transparent;
  transition: background var(--transition-fast);
}
.btn-primary { background: var(--color-q2); color: white; }
.btn-primary:hover { background: #4d8a5d; }
.btn-ghost { background: var(--color-bg); color: var(--color-text); border-color: var(--color-border); }
.btn-ghost:hover { background: var(--color-surface-hover); }
.btn-danger { background: var(--color-q1); color: white; }
.btn-danger:hover { background: #b34a44; }

/* ============================================================
   Toast
   ============================================================ */
.toast-container {
  position: fixed;
  bottom: var(--space-5);
  left: 50%;
  transform: translateX(-50%);
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  align-items: center;
  pointer-events: none;
}
.toast {
  background: var(--color-text);
  color: var(--color-bg);
  padding: 8px 16px;
  border-radius: var(--radius);
  font-size: 12.5px;
  box-shadow: var(--shadow-lg);
  animation: toastIn 200ms ease;
  pointer-events: auto;
}
@keyframes toastIn {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* ============================================================
   Icon button + utility
   ============================================================ */
.icon-btn {
  width: 18px; height: 18px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--color-text-tertiary);
  font-size: 14px;
  line-height: 1;
  transition: background var(--transition-fast), color var(--transition-fast);
}
.icon-btn:hover { background: var(--color-surface-active); color: var(--color-text); }

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-8) var(--space-4);
  color: var(--color-text-tertiary);
  text-align: center;
}
.empty-state-icon { font-size: 48px; opacity: 0.4; margin-bottom: var(--space-3); }
.empty-state-text { font-size: 13px; }

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* drag/drop visual */
.matrix-cell[data-q].drag-over { background: var(--color-surface-hover); }
.task-item.dragging { opacity: 0.4; }