/* ==========================================================================
   WARM BEIGE & EDITORIAL MINIMALIST DESIGN SYSTEM (米色极简高级美学)
   Designed for High Legibility, Calm Focus, and Tactile Interaction
   ========================================================================== */

:root {
  /* Warm Beige / Sand / Oat Palette */
  --bg-app: #F7F5F0;             /* 柔和米燕麦底色 */
  --bg-surface: #FFFFFF;         /* 纯净卡片白 */
  --bg-surface-warm: #FAF8F4;    /* 暖米色微透背景 */
  --bg-surface-elevated: #FDFCF9;
  --bg-subtle: #EFECE4;          /* 略深的米灰色分割 */
  --bg-hover: #ECE7DE;          /* 悬浮浅米色 */
  --bg-focus-highlight: #FFFDF9;

  /* Typography Colors - 温暖雅致的深灰炭黑 */
  --text-primary: #2B2622;       /* 主标题与正文 */
  --text-secondary: #6B635B;     /* 次要说明 */
  --text-tertiary: #9C9388;      /* 占位符与时间戳 */
  --text-muted: #B8B0A4;
  --text-inverse: #FFFFFF;

  /* Accent & Category Colors (自然有机柔和色调) */
  --accent-terracotta: #C85A3B;  /* 陶土暖橙 - 重点/高优先级 */
  --accent-terracotta-bg: #F9ECE8;
  --accent-sage: #4E735F;        /* 鼠尾草绿 - 完成/客户跟进 */
  --accent-sage-bg: #EAF2ED;
  --accent-slate: #4A6572;       /* 灰蓝 - 合同报价/进行中 */
  --accent-slate-bg: #EBF1F5;
  --accent-amber: #B87C24;       /* 暖琥珀 - 等待/标书资质 */
  --accent-amber-bg: #FAF3E6;
  --accent-purple: #78648C;      /* 灰紫 - 订单物流 */
  --accent-purple-bg: #F2EDF7;
  --accent-brown: #755B49;       /* 暖咖 - 个人琐事 */
  --accent-brown-bg: #F4ECE6;

  /* Borders & Shadows */
  --border-light: #E7E2D6;
  --border-medium: #D9D2C4;
  --border-focus: #B5AB99;
  
  --shadow-sm: 0 2px 6px rgba(60, 50, 40, 0.04);
  --shadow-md: 0 8px 24px -4px rgba(60, 50, 40, 0.07), 0 2px 8px -2px rgba(60, 50, 40, 0.03);
  --shadow-lg: 0 16px 40px -8px rgba(60, 50, 40, 0.12), 0 4px 12px -2px rgba(60, 50, 40, 0.04);
  --shadow-focus: 0 0 0 3px rgba(200, 90, 59, 0.18);

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  /* Font Scale (按用户要求：字体加大，排版呼吸感强) */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "HarmonyOS Sans SC", "Noto Sans SC", sans-serif;
  --font-serif: "Songti SC", "Noto Serif SC", "STSong", serif;
  --font-mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --text-xs: 0.8125rem;  /* 13px */
  --text-sm: 0.9375rem;  /* 15px */
  --text-base: 1.0625rem; /* 17px - 舒适大号正文 */
  --text-lg: 1.1875rem;  /* 19px */
  --text-xl: 1.375rem;   /* 22px */
  --text-2xl: 1.75rem;   /* 28px */
  --text-3xl: 2.25rem;   /* 36px */

  --transition-fast: 0.15s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Dark Theme (温润暖黑/深黑曜石质感) */
[data-theme="dark"] {
  --bg-app: #1A1816;
  --bg-surface: #24211D;
  --bg-surface-warm: #2C2823;
  --bg-surface-elevated: #322D27;
  --bg-subtle: #363029;
  --bg-hover: #3D372F;
  --bg-focus-highlight: #2A2520;

  --text-primary: #F0EDE6;
  --text-secondary: #B5ACA0;
  --text-tertiary: #877E72;
  --text-muted: #5C554B;

  --border-light: #38322A;
  --border-medium: #473F35;
  --border-focus: #736758;

  --accent-terracotta-bg: #3D231C;
  --accent-sage-bg: #1B2E24;
  --accent-slate-bg: #1C2B35;
  --accent-amber-bg: #382A16;
  --accent-purple-bg: #2B2036;
  --accent-brown-bg: #2E231B;

  --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 8px 24px -4px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 16px 40px -8px rgba(0, 0, 0, 0.5);
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.55;
  color: var(--text-primary);
  background-color: var(--bg-app);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--border-medium);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-tertiary);
}

/* App Container */
.app-container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 24px 32px 48px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* ==========================================================================
   HEADER & BRANDING
   ========================================================================== */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-light);
}

.brand-section {
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand-logo {
  width: 46px;
  height: 46px;
  background: linear-gradient(135deg, var(--accent-terracotta), var(--accent-brown));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFF;
  font-size: 24px;
  box-shadow: var(--shadow-sm);
  flex-shrink: 0;
}

.brand-title {
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-badge {
  font-size: var(--text-xs);
  font-weight: 600;
  padding: 4px 10px;
  background-color: var(--bg-subtle);
  color: var(--text-secondary);
  border-radius: var(--radius-full);
  border: 1px solid var(--border-light);
  letter-spacing: 0.02em;
}

.brand-subtitle {
  font-size: var(--text-sm);
  color: var(--text-tertiary);
  margin-top: 2px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-stats {
  display: flex;
  gap: 16px;
  margin-right: 12px;
  padding: 6px 16px;
  background: var(--bg-surface);
  border-radius: var(--radius-full);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
}

.stat-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

.stat-item strong {
  color: var(--text-primary);
  font-weight: 700;
}

.icon-btn {
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  color: var(--text-secondary);
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.icon-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  border-color: var(--border-medium);
  transform: translateY(-1px);
}

/* ==========================================================================
   QUICK CAPTURE BAR (极速闪念录入区)
   ========================================================================== */
.quick-capture-card {
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  padding: 20px 24px;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.quick-capture-card:focus-within {
  border-color: var(--border-focus);
  box-shadow: var(--shadow-lg), 0 0 0 3px rgba(181, 171, 153, 0.15);
}

.capture-main-row {
  display: flex;
  align-items: center;
  gap: 14px;
}

.capture-icon {
  font-size: 22px;
  color: var(--accent-terracotta);
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

.capture-input {
  flex: 1;
  border: none;
  background: transparent;
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--text-primary);
  outline: none;
  font-family: inherit;
}

.capture-input::placeholder {
  color: var(--text-tertiary);
  font-weight: 400;
}

.capture-submit-btn {
  background: var(--text-primary);
  color: var(--bg-surface);
  border: none;
  border-radius: var(--radius-md);
  padding: 10px 20px;
  font-size: var(--text-sm);
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.capture-submit-btn:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.capture-options-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 10px;
  border-top: 1px dashed var(--border-light);
}

.tag-selector-group {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.category-tag-pill {
  border: 1px solid var(--border-light);
  background: var(--bg-surface-warm);
  color: var(--text-secondary);
  font-size: var(--text-xs);
  font-weight: 500;
  padding: 5px 12px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 5px;
  user-select: none;
}

.category-tag-pill:hover {
  background: var(--bg-hover);
  border-color: var(--border-medium);
  color: var(--text-primary);
}

.category-tag-pill.active {
  background: var(--text-primary);
  color: var(--bg-surface);
  border-color: var(--text-primary);
}

.capture-meta-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.custom-select-wrap {
  position: relative;
  display: inline-block;
}

.custom-select, .custom-date-input {
  background: var(--bg-surface-warm);
  border: 1px solid var(--border-light);
  color: var(--text-secondary);
  font-size: var(--text-xs);
  font-weight: 500;
  padding: 5px 12px;
  border-radius: var(--radius-md);
  outline: none;
  cursor: pointer;
  font-family: inherit;
  transition: border-color var(--transition-fast);
}

.custom-select:hover, .custom-date-input:hover {
  border-color: var(--border-medium);
}

/* ==========================================================================
   FOCUS & INTERRUPT DOCK (防打断当前聚焦舱)
   ========================================================================== */
.focus-dock {
  background: linear-gradient(135deg, var(--bg-surface-warm) 0%, var(--bg-surface) 100%);
  border: 2px solid var(--border-medium);
  border-radius: var(--radius-lg);
  padding: 22px 28px;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
  transition: all var(--transition-normal);
}

.focus-dock::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 6px;
  height: 100%;
  background: var(--accent-terracotta);
}

.focus-dock-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.focus-status-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--accent-terracotta);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.pulsing-dot {
  width: 10px;
  height: 10px;
  background: var(--accent-terracotta);
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(200, 90, 59, 0.7);
  animation: pulse-ring 1.8s infinite cubic-bezier(0.66, 0, 0, 1);
}

@keyframes pulse-ring {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(200, 90, 59, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 10px rgba(200, 90, 59, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(200, 90, 59, 0); }
}

.focus-timer-counter {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--text-secondary);
  background: var(--bg-subtle);
  padding: 4px 10px;
  border-radius: var(--radius-full);
}

.focus-title-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.focus-task-info {
  flex: 1;
}

.focus-task-name {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.35;
  margin-bottom: 8px;
}

.focus-task-memo {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  background: var(--bg-surface-elevated);
  border-left: 3px solid var(--border-medium);
  padding: 8px 14px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-top: 6px;
  white-space: pre-wrap;
}

.focus-actions-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.btn-interrupt {
  background: var(--accent-amber-bg);
  color: var(--accent-amber);
  border: 1px solid var(--accent-amber);
  font-size: var(--text-sm);
  font-weight: 600;
  padding: 9px 16px;
  border-radius: var(--radius-md);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition-fast);
}

.btn-interrupt:hover {
  background: var(--accent-amber);
  color: #FFF;
  transform: translateY(-1px);
}

.btn-focus-done {
  background: var(--accent-sage);
  color: #FFF;
  border: none;
  font-size: var(--text-sm);
  font-weight: 600;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

.btn-focus-done:hover {
  background: #3F5E4D;
  transform: translateY(-1px);
}

/* Empty Focus State */
.focus-empty-state {
  text-align: center;
  padding: 18px 0;
  color: var(--text-secondary);
  font-size: var(--text-base);
}

.focus-empty-state span {
  color: var(--accent-terracotta);
  font-weight: 600;
}

/* Interrupted Banner */
.interrupted-alert-bar {
  margin-top: 14px;
  padding: 10px 16px;
  background: var(--accent-amber-bg);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border: 1px dashed var(--accent-amber);
  font-size: var(--text-sm);
  color: var(--text-primary);
}

.btn-resume-original {
  background: var(--accent-amber);
  color: #FFF;
  border: none;
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  font-weight: 600;
  cursor: pointer;
}

/* ==========================================================================
   VIEW CONTROLS & FILTER BAR
   ========================================================================== */
.view-control-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  padding: 4px 0;
}

.view-mode-tabs {
  display: flex;
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  padding: 4px;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-sm);
}

.view-tab-btn {
  background: transparent;
  border: none;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-secondary);
  padding: 7px 18px;
  border-radius: var(--radius-full);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition-fast);
}

.view-tab-btn.active {
  background: var(--text-primary);
  color: var(--bg-surface);
  box-shadow: var(--shadow-sm);
}

.filter-pills-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.filter-label {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  font-weight: 600;
}

.filter-btn {
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  color: var(--text-secondary);
  font-size: var(--text-xs);
  font-weight: 500;
  padding: 5px 12px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn:hover {
  border-color: var(--border-medium);
  color: var(--text-primary);
}

.filter-btn.active {
  background: var(--text-primary);
  color: var(--bg-surface);
  border-color: var(--text-primary);
}

.search-input-wrap {
  position: relative;
  min-width: 200px;
}

.search-input {
  width: 100%;
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-full);
  padding: 7px 16px 7px 34px;
  font-size: var(--text-sm);
  color: var(--text-primary);
  outline: none;
  font-family: inherit;
  transition: border-color var(--transition-fast);
}

.search-input:focus {
  border-color: var(--border-focus);
}

.search-icon-pos {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-tertiary);
  font-size: 14px;
  pointer-events: none;
}

/* ==========================================================================
   KANBAN BOARD VIEW (三态流看板)
   ========================================================================== */
.kanban-board-container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: start;
}

@media (max-width: 1080px) {
  .kanban-board-container {
    grid-template-columns: 1fr;
  }
}

.kanban-column {
  background: var(--bg-surface-warm);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-height: 480px;
  transition: background-color var(--transition-fast);
}

.kanban-column.drag-over {
  background: var(--bg-subtle);
  border-color: var(--border-focus);
}

.column-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-light);
}

.column-title-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
}

.column-indicator {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.col-inbox .column-indicator { background: var(--accent-terracotta); }
.col-progress .column-indicator { background: var(--accent-slate); }
.col-done .column-indicator { background: var(--accent-sage); }

.column-title {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--text-primary);
}

.column-count-badge {
  background: var(--bg-subtle);
  color: var(--text-secondary);
  font-size: var(--text-xs);
  font-weight: 700;
  padding: 2px 8px;
  border-radius: var(--radius-full);
}

.task-card-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
}

/* ==========================================================================
   TASK CARDS (任务卡片设计 - 舒适大字与呼吸感)
   ========================================================================== */
.task-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 16px 18px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 10px;
  cursor: grab;
  position: relative;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
  user-select: none;
}

.task-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-medium);
}

.task-card.is-dragging {
  opacity: 0.5;
  transform: scale(0.98);
}

.task-card.active-focus {
  border-color: var(--accent-terracotta);
  background: var(--bg-focus-highlight);
  box-shadow: var(--shadow-md), 0 0 0 2px rgba(200, 90, 59, 0.2);
}

.task-card-header {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

/* Custom Checkbox */
.task-checkbox-wrap {
  position: relative;
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  margin-top: 2px;
}

.task-checkbox {
  opacity: 0;
  position: absolute;
  width: 100%;
  height: 100%;
  cursor: pointer;
  z-index: 2;
}

.checkbox-custom {
  position: absolute;
  top: 0;
  left: 0;
  width: 22px;
  height: 22px;
  border: 2px solid var(--border-medium);
  border-radius: 6px;
  background: var(--bg-surface);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.task-checkbox:hover ~ .checkbox-custom {
  border-color: var(--accent-sage);
}

.task-checkbox:checked ~ .checkbox-custom {
  background: var(--accent-sage);
  border-color: var(--accent-sage);
}

.checkbox-custom::after {
  content: '✓';
  color: #FFF;
  font-size: 14px;
  font-weight: 700;
  display: none;
}

.task-checkbox:checked ~ .checkbox-custom::after {
  display: block;
}

.task-title {
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.45;
  flex: 1;
  word-break: break-word;
  transition: color var(--transition-fast);
}

.task-card.is-completed .task-title {
  text-decoration: line-through;
  color: var(--text-tertiary);
}

.task-meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-size: var(--text-xs);
}

.task-tags-group {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.badge-tag {
  font-size: var(--text-xs);
  font-weight: 600;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* Category Badge Colors */
.badge-customer { background: var(--accent-sage-bg); color: var(--accent-sage); }
.badge-tender { background: var(--accent-amber-bg); color: var(--accent-amber); }
.badge-contract { background: var(--accent-slate-bg); color: var(--accent-slate); }
.badge-order { background: var(--accent-purple-bg); color: var(--accent-purple); }
.badge-misc { background: var(--accent-brown-bg); color: var(--accent-brown); }
.badge-waiting { background: var(--accent-terracotta-bg); color: var(--accent-terracotta); }

/* Priority Badge Colors */
.badge-priority-high { background: var(--accent-terracotta-bg); color: var(--accent-terracotta); font-weight: 700; }
.badge-priority-medium { background: var(--accent-amber-bg); color: var(--accent-amber); }
.badge-priority-low { background: var(--bg-subtle); color: var(--text-tertiary); }

.task-due-date {
  color: var(--text-tertiary);
  display: flex;
  align-items: center;
  gap: 4px;
}

.task-due-date.overdue {
  color: var(--accent-terracotta);
  font-weight: 600;
}

.task-card-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  padding-top: 8px;
  border-top: 1px dashed var(--border-light);
  opacity: 0.85;
  transition: opacity var(--transition-fast);
}

.task-card:hover .task-card-actions {
  opacity: 1;
}

.card-action-btn {
  background: transparent;
  border: 1px solid var(--border-light);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--text-secondary);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: all var(--transition-fast);
}

.card-action-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  border-color: var(--border-medium);
}

.card-action-btn.btn-start-focus {
  background: var(--accent-terracotta-bg);
  border-color: var(--accent-terracotta);
  color: var(--accent-terracotta);
  font-weight: 600;
}

.card-action-btn.btn-start-focus:hover {
  background: var(--accent-terracotta);
  color: #FFF;
}

/* ==========================================================================
   LIST VIEW & MATRIX VIEW
   ========================================================================== */
.list-view-container {
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-sm);
}

.matrix-view-container {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

@media (max-width: 900px) {
  .matrix-view-container {
    grid-template-columns: 1fr;
  }
}

.matrix-quadrant {
  background: var(--bg-surface-warm);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 280px;
}

.quadrant-title {
  font-size: var(--text-base);
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ==========================================================================
   MODALS (任务详情、打断插队弹窗、智能体中枢)
   ========================================================================== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(43, 38, 34, 0.45);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-dialog {
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  transform: translateY(12px) scale(0.98);
  transition: transform var(--transition-normal);
}

.modal-overlay.active .modal-dialog {
  transform: translateY(0) scale(1);
}

.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-light);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-title {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--text-primary);
}

.modal-close-btn {
  background: transparent;
  border: none;
  font-size: 22px;
  color: var(--text-tertiary);
  cursor: pointer;
}

.modal-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-secondary);
}

.form-input, .form-textarea {
  background: var(--bg-surface-warm);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  font-size: var(--text-base);
  color: var(--text-primary);
  font-family: inherit;
  outline: none;
  transition: border-color var(--transition-fast);
}

.form-input:focus, .form-textarea:focus {
  border-color: var(--border-focus);
}

.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border-light);
  display: flex;
  justify-content: flex-end;
  gap: 12px;
}

.btn-secondary {
  background: var(--bg-surface-warm);
  border: 1px solid var(--border-light);
  color: var(--text-secondary);
  font-size: var(--text-sm);
  font-weight: 600;
  padding: 10px 18px;
  border-radius: var(--radius-md);
  cursor: pointer;
}

.btn-primary {
  background: var(--text-primary);
  color: var(--bg-surface);
  border: none;
  font-size: var(--text-sm);
  font-weight: 600;
  padding: 10px 22px;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: opacity var(--transition-fast);
}

.btn-primary:hover {
  opacity: 0.9;
}

/* ==========================================================================
   AI AGENT EXTENSION DRAWER (智能体中枢滑出抽屉)
   ========================================================================== */
.agent-drawer {
  position: fixed;
  top: 0;
  right: -480px;
  width: 460px;
  height: 100vh;
  background: var(--bg-surface);
  border-left: 1px solid var(--border-light);
  box-shadow: var(--shadow-lg);
  z-index: 1050;
  display: flex;
  flex-direction: column;
  transition: right var(--transition-smooth);
}

.agent-drawer.open {
  right: 0;
}

.agent-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-light);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bg-surface-warm);
}

.agent-title {
  font-size: var(--text-lg);
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}

.agent-body {
  padding: 20px 24px;
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.agent-quick-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.agent-action-card {
  background: var(--bg-surface-warm);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 12px;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: left;
}

.agent-action-card:hover {
  border-color: var(--border-medium);
  background: var(--bg-hover);
  transform: translateY(-1px);
}

.agent-action-card strong {
  display: block;
  font-size: var(--text-sm);
  color: var(--text-primary);
  margin-bottom: 4px;
}

.agent-action-card span {
  font-size: var(--text-xs);
  color: var(--text-secondary);
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toast {
  background: var(--text-primary);
  color: var(--bg-surface);
  padding: 12px 20px;
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 10px;
  animation: slide-up 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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