/* ============================================================
   限樣系統 - 樣式表
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Noto+Sans+TC:wght@300;400;500;600;700&display=swap');

/* ============================================================
   CSS Variables / Design Tokens
   ============================================================ */
:root {
  /* Colors */
  --bg-primary: #0f1117;
  --bg-secondary: #1a1d27;
  --bg-card: #21242f;
  --bg-card-hover: #282c3a;
  --bg-input: #181b24;

  --text-primary: #e8eaf0;
  --text-secondary: #8b8fa3;
  --text-muted: #5c6078;
  --text-accent: #7c8aff;

  --accent-primary: #6366f1;
  --accent-primary-hover: #818cf8;
  --accent-secondary: #a78bfa;
  --accent-gradient: linear-gradient(135deg, #6366f1, #a78bfa);

  --danger: #f43f5e;
  --danger-hover: #fb7185;
  --success: #10b981;
  --warning: #f59e0b;

  --border-color: rgba(255, 255, 255, 0.06);
  --border-active: rgba(99, 102, 241, 0.5);

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.15);

  /* Sizing */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
  --transition-slow: 0.4s ease;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', 'Noto Sans TC', -apple-system, BlinkMacSystemFont,
    sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============================================================
   App Layout
   ============================================================ */
.app-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ============================================================
   Header
   ============================================================ */
.app-header {
  padding: 24px 0;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.app-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.app-logo-icon {
  width: 42px;
  height: 42px;
  background: var(--accent-gradient);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  box-shadow: var(--shadow-glow);
}

.app-logo h1 {
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

/* ============================================================
   Mode Switch Tabs
   ============================================================ */
.mode-tabs {
  display: flex;
  gap: 4px;
  background: var(--bg-secondary);
  padding: 4px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.mode-tab {
  padding: 10px 24px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 8px;
}

.mode-tab:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.04);
}

.mode-tab.active {
  background: var(--accent-gradient);
  color: #ffffff;
  box-shadow: var(--shadow-glow);
}

.mode-tab .tab-icon {
  font-size: 1.1rem;
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn-primary {
  background: var(--accent-gradient);
  color: #fff;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-glow), var(--shadow-md);
}

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

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-active);
}

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

.btn-danger:hover {
  background: var(--danger-hover);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
}

.btn-sm {
  padding: 6px 14px;
  font-size: 0.825rem;
}

.btn-lg {
  padding: 14px 28px;
  font-size: 1rem;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* ============================================================
   Form Elements
   ============================================================ */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  margin-bottom: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-muted);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

/* ============================================================
   Search Bar
   ============================================================ */
.search-container {
  position: relative;
  margin-bottom: 32px;
}

.search-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.2rem;
  color: var(--text-muted);
  pointer-events: none;
}

.search-input {
  width: 100%;
  padding: 16px 16px 16px 48px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 1rem;
  transition: all var(--transition-fast);
}

.search-input:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1), var(--shadow-md);
  background: var(--bg-card);
}

.search-input::placeholder {
  color: var(--text-muted);
}

/* ============================================================
   Cards
   ============================================================ */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  pointer-events: none;
  background: radial-gradient(600px circle at var(--mx, 50%) var(--my, 0%), rgba(99,102,241,0.06), transparent 40%);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.card:hover {
  border-color: var(--border-active);
  box-shadow: var(--shadow-md), 0 0 0 1px rgba(99,102,241,0.15);
  transform: translateY(-2px);
}

.card:hover::after {
  opacity: 1;
}

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

.card-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  background: rgba(99, 102, 241, 0.15);
  color: var(--accent-primary-hover);
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.card-notes {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 16px;
  white-space: pre-wrap;
}

.card-meta {
  display: flex;
  gap: 16px;
  color: var(--text-muted);
  font-size: 0.8rem;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border-color);
}

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

/* ============================================================
   Sort Toolbar
   ============================================================ */
.sort-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
  margin-top: -16px;
}

.sort-label {
  color: var(--text-muted);
  font-size: 0.8rem;
}

.sort-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 5px 12px;
  border: 1px solid var(--border-color);
  border-radius: 999px;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.sort-btn:hover {
  border-color: var(--accent-primary);
  color: var(--text-primary);
}

.sort-btn.active {
  border-color: var(--accent-primary);
  background: rgba(99, 102, 241, 0.15);
  color: var(--accent-primary-hover);
}

.sort-arrow {
  font-size: 0.75rem;
  opacity: 0.8;
}

/* ============================================================
   Image Grid
   ============================================================ */
.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
  margin: 16px 0;
}

.image-item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 1;
  background: var(--bg-secondary);
  cursor: pointer;
  transition: transform var(--transition-fast);
}

/* Video badge overlay */
.video-badge {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 44px;
  height: 44px;
  background: rgba(0,0,0,0.6);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: #fff;
  pointer-events: none;
  transition: background var(--transition-fast);
}

.image-item:hover .video-badge {
  background: rgba(99, 102, 241, 0.8);
}

/* Video preview thumb (in upload preview / edit modal) */
.video-preview-thumb {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-size: 2rem;
  gap: 4px;
}

.image-item:hover {
  transform: scale(1.02);
}

.image-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.image-item:hover img {
  transform: scale(1.05);
}

.image-item .image-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(0, 0, 0, 0.7) 0%,
    transparent 50%
  );
  opacity: 0;
  transition: opacity var(--transition-fast);
  display: flex;
  align-items: flex-end;
  padding: 10px;
}

.image-item:hover .image-overlay {
  opacity: 1;
}

.image-overlay .image-name {
  color: #fff;
  font-size: 0.75rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Image delete button (admin) */
.image-delete-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(244, 63, 94, 0.9);
  border: none;
  color: #fff;
  font-size: 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: all var(--transition-fast);
  z-index: 2;
}

.image-item:hover .image-delete-btn {
  opacity: 1;
}

.image-delete-btn:hover {
  background: var(--danger);
  transform: scale(1.1);
}

/* ============================================================
   Upload Area
   ============================================================ */
.upload-area {
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
}

.upload-area:hover,
.upload-area.dragover {
  border-color: var(--accent-primary);
  background: rgba(99, 102, 241, 0.05);
}

.upload-area .upload-icon {
  font-size: 3rem;
  margin-bottom: 12px;
  opacity: 0.6;
}

.upload-area .upload-text {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.upload-area .upload-text strong {
  color: var(--accent-primary-hover);
}

.upload-area input[type='file'] {
  display: none;
}

/* Camera button */
.camera-btn-row {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-top: 12px;
}

/* Preview grid for uploads */
.upload-preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 10px;
  margin-top: 16px;
}

.upload-preview-item {
  position: relative;
  border-radius: var(--radius-sm);
  overflow: hidden;
  aspect-ratio: 1;
  background: var(--bg-secondary);
}

.upload-preview-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.upload-preview-item .remove-btn {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(244, 63, 94, 0.9);
  border: none;
  color: #fff;
  font-size: 12px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.upload-preview-item .remove-btn:hover {
  background: var(--danger);
  transform: scale(1.1);
}

/* ============================================================
   Modal / Lightbox
   ============================================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-color);
  padding: 32px;
  max-width: 600px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(0.95) translateY(10px);
  transition: transform var(--transition-normal);
}

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

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.modal-title {
  font-size: 1.25rem;
  font-weight: 600;
}

.modal-close {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

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

.modal-footer {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
}

/* Lightbox */
.lightbox-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.95);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  cursor: zoom-out;
}

.lightbox-overlay.active {
  opacity: 1;
  visibility: visible;
}

.lightbox-overlay img {
  max-width: 95%;
  max-height: 95vh;
  object-fit: contain;
  border-radius: var(--radius-sm);
}

.lightbox-close {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  font-size: 1.5rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.lightbox-close:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* ============================================================
   Admin Login
   ============================================================ */
.admin-login-card {
  max-width: 400px;
  margin: 80px auto;
  text-align: center;
}

.admin-login-card .login-icon {
  font-size: 3rem;
  margin-bottom: 16px;
}

.admin-login-card h2 {
  margin-bottom: 8px;
  font-weight: 600;
}

.admin-login-card p {
  color: var(--text-secondary);
  margin-bottom: 24px;
  font-size: 0.9rem;
}

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

.empty-state .empty-icon {
  font-size: 4rem;
  margin-bottom: 16px;
  opacity: 0.5;
}

.empty-state h3 {
  color: var(--text-secondary);
  margin-bottom: 8px;
  font-weight: 500;
}

.empty-state p {
  font-size: 0.9rem;
}

/* ============================================================
   Results Grid
   ============================================================ */
.results-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

/* ============================================================
   Loading
   ============================================================ */
.loading-spinner {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.loading-spinner::before {
  content: '';
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-color);
  border-top-color: var(--accent-primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Full page loading overlay */
.loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 17, 23, 0.8);
  backdrop-filter: blur(4px);
  z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 16px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
}

.loading-overlay.active {
  opacity: 1;
  visibility: visible;
}

.loading-overlay .spinner-large {
  width: 48px;
  height: 48px;
  border: 3px solid var(--border-color);
  border-top-color: var(--accent-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

/* ============================================================
   Toast Notifications
   ============================================================ */
.toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 4000;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toast {
  padding: 14px 20px;
  border-radius: var(--radius-md);
  color: #fff;
  font-size: 0.9rem;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  animation: toastIn 0.3s ease;
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 280px;
}

.toast.success {
  background: var(--success);
}

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

.toast.info {
  background: var(--accent-primary);
}

.toast.fade-out {
  animation: toastOut 0.3s ease forwards;
}

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

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

/* ============================================================
   Admin Panel Grid
   ============================================================ */
.admin-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 12px;
}

.admin-toolbar h2 {
  font-size: 1.2rem;
  font-weight: 600;
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 768px) {
  .app-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .mode-tabs {
    width: 100%;
  }

  .mode-tab {
    flex: 1;
    justify-content: center;
  }

  .image-grid {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  }

  .modal-content {
    width: 95%;
    padding: 20px;
    margin: 10px;
  }

  .admin-toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .card-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .card-actions {
    width: 100%;
  }

  .card-actions .btn {
    flex: 1;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .app-container {
    padding: 0 12px;
  }

  .upload-area {
    padding: 24px;
  }

  .image-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ============================================================
   Page Transition
   ============================================================ */
.page-section {
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Confirm dialog */
.confirm-dialog {
  text-align: center;
}

.confirm-dialog .confirm-icon {
  font-size: 3rem;
  margin-bottom: 12px;
}

.confirm-dialog p {
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.confirm-dialog .product-id-highlight {
  color: var(--accent-primary-hover);
  font-weight: 600;
  font-size: 1.1rem;
}

/* ============================================================
   Stats Grid (Admin)
   ============================================================ */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  margin-bottom: 24px;
}

.stat-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(99,102,241,0.08), transparent 60%);
  pointer-events: none;
}

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

.stat-card.stat-warning::before {
  background: linear-gradient(135deg, rgba(245,158,11,0.12), transparent 60%);
}

.stat-card.stat-warning {
  border-color: rgba(245,158,11,0.35);
}

.stat-icon {
  font-size: 1.8rem;
  filter: drop-shadow(0 2px 6px rgba(0,0,0,0.3));
}

.stat-body {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.stat-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.1;
}

.stat-sub {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-left: 4px;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 2px;
}

/* 警告徽章 */
.card-badge-warn {
  background: rgba(245,158,11,0.18) !important;
  color: var(--warning) !important;
}

/* ============================================================
   Theme: light mode override (depend on data-theme="light" on <html>)
   ============================================================ */
html[data-theme="light"] {
  --bg-primary: #f6f7fb;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  --bg-card-hover: #f0f2f8;
  --bg-input: #f9fafc;
  --text-primary: #1a1d27;
  --text-secondary: #5c6078;
  --text-muted: #9298ad;
  --text-accent: #4338ca;
  --border-color: rgba(0,0,0,0.08);
  --border-active: rgba(99,102,241,0.4);
  --shadow-sm: 0 1px 3px rgba(15,23,42,0.06);
  --shadow-md: 0 4px 12px rgba(15,23,42,0.08);
  --shadow-lg: 0 8px 32px rgba(15,23,42,0.12);
  --shadow-glow: 0 0 20px rgba(99,102,241,0.18);
}
html[data-theme="light"] body { background: var(--bg-primary); }
html[data-theme="light"] .lightbox-overlay { background: rgba(0,0,0,0.85); }
html[data-theme="light"] .modal-overlay { background: rgba(0,0,0,0.45); }
html[data-theme="light"] .annotator-stage { background-color: #e9ecf3; }
html[data-theme="light"] .image-item { background: var(--bg-input); }
html[data-theme="light"] .video-preview-thumb { background: var(--bg-input); }

/* Theme toggle button */
.theme-toggle {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  background: var(--bg-secondary);
  color: var(--text-primary);
  cursor: pointer;
  font-size: 1.05rem;
  transition: all var(--transition-fast);
  margin-right: 8px;
}
.theme-toggle:hover {
  background: var(--bg-card-hover);
  transform: rotate(20deg);
}

/* ============================================================
   Quick Shot FAB
   ============================================================ */
.quick-shot-fab {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  border: none;
  background: var(--accent-gradient);
  color: #fff;
  font-size: 1.8rem;
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(99,102,241,0.45);
  z-index: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-normal);
  animation: fabPop 0.5s ease;
}
.quick-shot-fab:hover {
  transform: translateY(-4px) scale(1.05);
  box-shadow: 0 12px 32px rgba(99,102,241,0.6);
}
.quick-shot-fab:active { transform: translateY(0) scale(0.95); }
@keyframes fabPop {
  from { transform: scale(0.4); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}
.quick-preview {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
  gap: 6px;
  margin-bottom: 14px;
  max-height: 200px;
  overflow-y: auto;
}
.tag-suggest {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}

/* Microphone button (textarea overlay) */
.mic-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: none;
  background: var(--bg-secondary);
  cursor: pointer;
  font-size: 1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  transition: all var(--transition-fast);
}
.mic-btn:hover { background: var(--bg-card-hover); }
.mic-btn.recording {
  background: var(--danger);
  color: #fff;
  animation: micPulse 1s ease-in-out infinite;
}
@keyframes micPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(244,63,94,0.6); }
  50% { box-shadow: 0 0 0 10px rgba(244,63,94,0); }
}

/* ============================================================
   Delivery Note modal
   ============================================================ */
.dn-pid-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  max-height: 120px;
  overflow-y: auto;
  padding: 8px;
  background: var(--bg-secondary);
  border-radius: 6px;
}

/* ============================================================
   Card badge danger
   ============================================================ */
.card-badge-danger {
  background: rgba(244,63,94,0.18) !important;
  color: var(--danger-hover) !important;
}
.stat-card.stat-danger { border-color: rgba(244,63,94,0.4); }
.stat-card.stat-danger::before {
  background: linear-gradient(135deg, rgba(244,63,94,0.15), transparent 60%);
}

/* ============================================================
   History timeline
   ============================================================ */
.hist-tip {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-bottom: 14px;
}
.hist-section { margin-bottom: 18px; }
.hist-section h4 {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 10px;
}
.hist-count {
  display: inline-block;
  background: var(--bg-secondary);
  color: var(--text-muted);
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 99px;
  margin-left: 4px;
}
.hist-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 10px;
}
.hist-item {
  background: var(--bg-secondary);
  border-radius: 8px;
  overflow: hidden;
  cursor: pointer;
  transition: all var(--transition-fast);
}
.hist-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.hist-item img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  display: block;
}
.hist-item-name {
  font-size: 0.7rem;
  padding: 4px 6px;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.hist-item-ts {
  font-size: 0.65rem;
  padding: 0 6px 6px;
  color: var(--text-muted);
}

/* ============================================================
   AR overlay
   ============================================================ */
.ar-stage {
  position: relative;
  background: #000;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4/3;
  margin-bottom: 12px;
}
.ar-stage video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.ar-stage img {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  max-width: 100%;
  max-height: 100%;
  pointer-events: none;
  opacity: 0.5;
  mix-blend-mode: difference;
}
.ar-tools {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 8px;
}
.ar-tools label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}
.ar-tools input[type=range] { width: 110px; }
.ar-tip {
  color: var(--text-muted);
  font-size: 0.78rem;
}

/* ============================================================
   Heatmap
   ============================================================ */
.heatmap-tip {
  color: var(--text-muted);
  font-size: 0.82rem;
  margin-bottom: 12px;
  line-height: 1.6;
}
.heatmap-tooltip {
  position: fixed;
  background: rgba(15,17,23,0.95);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 0.78rem;
  color: var(--text-primary);
  pointer-events: none;
  z-index: 5000;
  box-shadow: var(--shadow-lg);
  min-width: 160px;
}

/* ============================================================
   Lightbox tools (top-left button group)
   ============================================================ */
.lightbox-tools {
  position: absolute;
  top: 20px;
  left: 20px;
  display: flex;
  gap: 8px;
  z-index: 10;
  flex-wrap: wrap;
}
.lightbox-tool-btn {
  padding: 8px 14px;
  border-radius: 999px;
  border: none;
  background: rgba(255,255,255,0.12);
  color: #fff;
  font-size: 0.85rem;
  cursor: pointer;
  backdrop-filter: blur(6px);
  transition: all var(--transition-fast);
}
.lightbox-tool-btn:hover {
  background: rgba(99,102,241,0.6);
  transform: translateY(-1px);
}
/* override original lightbox-annotate position (now inside .lightbox-tools) */
.lightbox-annotate {
  position: static !important;
}

/* ============================================================
   Note media (手寫便條) 特殊樣式
   ============================================================ */
.image-item-note {
  border: 2px solid #fbbf24;
  box-shadow: 0 4px 12px rgba(251,191,36,0.25);
}
.image-item-note img {
  background: #fffdf5 !important;
  object-fit: contain !important;
  padding: 4px;
}
.note-badge {
  position: absolute;
  top: 8px;
  right: 8px;
  background: #fbbf24;
  color: #000;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 999px;
  z-index: 2;
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

/* ============================================================
   Compare Mode (並排比較)
   ============================================================ */
.compare-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg-primary);
  z-index: 2400;
  display: none;
  flex-direction: column;
}
.compare-overlay.active { display: flex; }

.compare-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 24px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  flex-wrap: wrap;
  gap: 12px;
}
.compare-toolbar h3 {
  font-size: 1.1rem;
  font-weight: 600;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.compare-tools {
  display: flex;
  gap: 10px;
  align-items: center;
}
.compare-toggle {
  color: var(--text-secondary);
  font-size: 0.85rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}
.compare-toggle input { cursor: pointer; }

.compare-stage {
  flex: 1;
  display: grid;
  gap: 16px;
  padding: 20px;
  overflow: hidden;
}
.compare-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 14px;
  overflow: hidden;
  min-width: 0;
}
.compare-col-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  font-size: 1rem;
  color: var(--text-primary);
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-color);
}
.compare-col-info {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: normal;
}
.compare-tags {
  display: flex;
  gap: 5px;
  flex-wrap: wrap;
}
.compare-tags span {
  background: rgba(99,102,241,0.15);
  color: var(--accent-primary-hover);
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 0.72rem;
}
.compare-main-img-wrap {
  flex: 1;
  position: relative;
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
  overflow: hidden;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: zoom-in;
}
.compare-main-img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  transition: transform 0.15s ease;
  user-select: none;
}
.compare-note-badge {
  position: absolute;
  top: 8px;
  right: 8px;
  background: #fbbf24;
  color: #000;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 999px;
}
.compare-thumbs {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding: 4px 0;
}
.compare-thumb {
  position: relative;
  width: 56px;
  height: 56px;
  flex-shrink: 0;
  border: 2px solid transparent;
  border-radius: 6px;
  cursor: pointer;
  background: transparent;
  padding: 0;
  overflow: hidden;
  transition: all var(--transition-fast);
}
.compare-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 4px;
}
.compare-thumb:hover { border-color: var(--accent-primary); }
.compare-thumb.active {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 2px rgba(99,102,241,0.3);
}
.compare-thumb-note {
  position: absolute;
  top: 2px;
  right: 2px;
  background: #fbbf24;
  border-radius: 2px;
  font-size: 9px;
  padding: 0 2px;
}
.compare-notes {
  background: var(--bg-secondary);
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--warning);
  color: var(--text-secondary);
  font-size: 0.85rem;
  white-space: pre-wrap;
  max-height: 120px;
  overflow-y: auto;
}
.compare-empty {
  color: var(--text-muted);
  text-align: center;
  padding: 40px;
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .compare-stage {
    grid-template-columns: 1fr !important;
    overflow-y: auto;
  }
}

/* ============================================================
   Search scan button (條碼掃描)
   ============================================================ */
.search-scan-btn {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 38px;
  height: 38px;
  border-radius: 10px;
  border: none;
  background: var(--bg-card);
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 1.1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}
.search-scan-btn:hover {
  background: var(--accent-primary);
  color: #fff;
  transform: translateY(-50%) scale(1.05);
}

/* ============================================================
   Card select / multi-select (admin)
   ============================================================ */
.card-select {
  display: inline-flex;
  margin-right: 8px;
  cursor: pointer;
}
.card-select input[type="checkbox"] {
  appearance: none;
  width: 18px;
  height: 18px;
  border: 2px solid var(--border-color);
  border-radius: 4px;
  background: var(--bg-secondary);
  cursor: pointer;
  position: relative;
  transition: all var(--transition-fast);
}
.card-select input[type="checkbox"]:hover {
  border-color: var(--accent-primary);
}
.card-select input[type="checkbox"]:checked {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
}
.card-select input[type="checkbox"]:checked::after {
  content: '✓';
  position: absolute;
  top: -3px;
  left: 2px;
  color: #fff;
  font-size: 14px;
  font-weight: bold;
}

.batch-toolbar {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  background: var(--accent-gradient);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  flex-wrap: wrap;
  position: sticky;
  top: 8px;
  z-index: 10;
  box-shadow: var(--shadow-md), 0 0 20px rgba(99,102,241,0.3);
}
.batch-toolbar.visible { display: flex; }
.batch-info {
  color: #fff;
  font-size: 0.9rem;
  margin-right: auto;
}

/* ============================================================
   Tags
   ============================================================ */
.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 8px 0 12px;
}
.tag-chip {
  background: rgba(99,102,241,0.12);
  color: var(--accent-primary-hover);
  border: 1px solid rgba(99,102,241,0.25);
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-family: inherit;
  cursor: pointer;
  transition: all var(--transition-fast);
}
.tag-chip:hover {
  background: rgba(99,102,241,0.25);
  transform: translateY(-1px);
}

/* ============================================================
   Confirm input (delete dialog)
   ============================================================ */
.confirm-input-group {
  margin-top: 20px;
  text-align: left;
}
.confirm-input-group code {
  background: rgba(244,63,94,0.15);
  color: var(--danger-hover);
  padding: 2px 8px;
  border-radius: 4px;
  font-family: monospace;
  font-size: 0.95em;
}

/* ============================================================
   Stats Dashboard
   ============================================================ */
.stats-summary {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 20px;
}
.stats-summary-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 14px;
  text-align: center;
}
.ssc-value {
  font-size: 1.8rem;
  font-weight: 700;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.ssc-label {
  color: var(--text-secondary);
  font-size: 0.78rem;
  margin-top: 4px;
}
.stats-section {
  margin-bottom: 20px;
}
.stats-section h4 {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 10px;
  font-weight: 500;
}
.sparkline-box {
  display: flex;
  align-items: flex-end;
  gap: 3px;
  height: 60px;
  padding: 8px;
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
}
.spark-bar {
  flex: 1;
  background: var(--accent-gradient);
  border-radius: 2px 2px 0 0;
  min-height: 2px;
  opacity: 0.85;
  transition: opacity var(--transition-fast);
}
.spark-bar:hover { opacity: 1; }
.stats-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}
.stats-table th, .stats-table td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--border-color);
  text-align: left;
}
.stats-table th {
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.78rem;
}
.stat-count {
  background: rgba(99,102,241,0.15);
  color: var(--accent-primary-hover);
  padding: 2px 10px;
  border-radius: 999px;
  font-weight: 600;
}
.stats-note {
  margin-top: 12px;
  font-size: 0.78rem;
  color: var(--text-muted);
  text-align: center;
}

/* ============================================================
   CSV Import
   ============================================================ */
.csv-import-info {
  background: var(--bg-secondary);
  padding: 14px;
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}
.csv-import-info p { margin-bottom: 6px; }
.csv-import-info code {
  background: rgba(99,102,241,0.15);
  color: var(--accent-primary-hover);
  padding: 1px 6px;
  border-radius: 3px;
}
.csv-example {
  background: var(--bg-input);
  padding: 8px 12px;
  border-radius: 6px;
  font-family: monospace;
  font-size: 0.78rem;
  margin-top: 6px;
  color: var(--text-primary);
  overflow-x: auto;
}
.csv-stats {
  display: flex;
  gap: 12px;
  margin: 12px 0;
}
.csv-ok { color: var(--success); font-weight: 600; }
.csv-skip { color: var(--warning); font-weight: 600; }
.csv-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  max-height: 280px;
  display: block;
  overflow-y: auto;
}
.csv-table th, .csv-table td {
  padding: 6px 10px;
  border-bottom: 1px solid var(--border-color);
  text-align: left;
}
.csv-row-skip { opacity: 0.5; }

/* ============================================================
   Audit Log
   ============================================================ */
.audit-search { margin-bottom: 12px; }
.audit-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
}
.audit-table th, .audit-table td {
  padding: 6px 10px;
  border-bottom: 1px solid var(--border-color);
  text-align: left;
  vertical-align: top;
}
.audit-table th {
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.75rem;
  position: sticky;
  top: 0;
  background: var(--bg-card);
}
.audit-time {
  color: var(--text-muted);
  white-space: nowrap;
  font-size: 0.78rem;
}
.audit-pwd {
  color: var(--text-muted);
  font-family: monospace;
  font-size: 0.78rem;
}
.audit-action {
  font-weight: 600;
  font-size: 0.78rem;
  white-space: nowrap;
}
.audit-action-create { color: var(--success); }
.audit-action-update { color: var(--accent-primary-hover); }
.audit-action-delete { color: var(--danger); }
.audit-action-reorder { color: var(--warning); }
.audit-note { font-size: 0.78rem; color: var(--text-muted); margin-top: 8px; text-align: center; }

/* ============================================================
   Barcode Scanner
   ============================================================ */
.scan-stage {
  position: relative;
  background: #000;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4/3;
  margin-bottom: 12px;
}
.scan-stage video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.scan-frame {
  position: absolute;
  inset: 15% 10%;
  border: 2px solid var(--accent-primary);
  border-radius: 12px;
  box-shadow: 0 0 0 9999px rgba(0,0,0,0.4);
  pointer-events: none;
}
.scan-line {
  position: absolute;
  left: 12%;
  right: 12%;
  top: 50%;
  height: 2px;
  background: linear-gradient(90deg, transparent, #ef4444, transparent);
  pointer-events: none;
  animation: scanLineMove 1.8s ease-in-out infinite;
}
@keyframes scanLineMove {
  0%, 100% { top: 18%; }
  50% { top: 80%; }
}
.scan-result {
  text-align: center;
  font-size: 0.95rem;
  color: var(--text-secondary);
  padding: 8px;
}

/* ============================================================
   Drag handle / cover badge
   ============================================================ */
.upload-preview-item.draggable {
  cursor: move;
  position: relative;
}
.upload-preview-item.draggable.dragging {
  opacity: 0.4;
  transform: scale(0.95);
}
.drag-handle {
  position: absolute;
  top: 6px;
  left: 6px;
  width: 22px;
  height: 22px;
  border-radius: 4px;
  background: rgba(0,0,0,0.6);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  pointer-events: none;
  z-index: 2;
}
.cover-badge {
  position: absolute;
  bottom: 6px;
  left: 6px;
  background: var(--accent-gradient);
  color: #fff;
  font-size: 10px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 999px;
  z-index: 2;
}

/* ============================================================
   Offline Banner
   ============================================================ */
.offline-banner {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 5000;
  background: linear-gradient(135deg, #f59e0b, #ef4444);
  color: #fff;
  padding: 8px 16px;
  text-align: center;
  font-size: 0.85rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transform: translateY(-100%);
  transition: transform var(--transition-normal);
  box-shadow: 0 2px 12px rgba(0,0,0,0.4);
}

.offline-banner.visible {
  transform: translateY(0);
}

.offline-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #fff;
  animation: offlinePulse 1.6s ease-in-out infinite;
}

@keyframes offlinePulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.4); }
}

/* ============================================================
   Duplicate Product Dialog
   ============================================================ */
.dup-warning {
  text-align: center;
  margin-bottom: 24px;
}

.dup-pid {
  display: inline-block;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--accent-primary-hover);
  background: rgba(99,102,241,0.15);
  padding: 8px 20px;
  border-radius: 999px;
  margin-bottom: 16px;
}

.dup-warning p {
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.dup-question {
  color: var(--text-primary) !important;
  font-weight: 600;
  margin-top: 16px !important;
}

.dup-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.dup-option {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  text-align: left;
  font-family: inherit;
  transition: all var(--transition-fast);
  color: var(--text-primary);
}

.dup-option:hover {
  border-color: var(--accent-primary);
  background: var(--bg-card-hover);
  transform: translateY(-1px);
}

.dup-option.dup-merge:hover {
  border-color: var(--success);
  background: rgba(16,185,129,0.08);
}

.dup-option.dup-new:hover {
  border-color: var(--warning);
  background: rgba(245,158,11,0.08);
}

.dup-option.dup-cancel:hover {
  border-color: var(--text-muted);
}

.dup-icon {
  font-size: 2rem;
  flex-shrink: 0;
}

.dup-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.dup-text strong {
  font-size: 1rem;
  color: var(--text-primary);
}

.dup-text span {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

/* ============================================================
   Annotator (Lightbox 內標註器)
   ============================================================ */
.lightbox-annotate {
  position: absolute;
  top: 20px;
  right: 80px;
  padding: 10px 16px;
  border-radius: 999px;
  border: none;
  background: var(--accent-gradient);
  color: #fff;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-md);
}

.lightbox-annotate:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-glow), var(--shadow-md);
}

.annotator-overlay {
  position: fixed;
  inset: 0;
  background: #0a0c12;
  z-index: 2500;
  display: none;
  flex-direction: column;
}

.annotator-overlay.active {
  display: flex;
}

.annotator-toolbar {
  display: flex;
  gap: 16px;
  padding: 12px 20px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  flex-wrap: wrap;
  align-items: center;
}

.ann-tool-group {
  display: flex;
  gap: 6px;
  padding: 4px;
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
}

.ann-spacer {
  margin-left: auto;
  background: transparent !important;
  padding: 0 !important;
  gap: 8px;
}

.ann-color {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.ann-color:hover { transform: scale(1.1); }
.ann-color.active { border-color: #fff; box-shadow: 0 0 0 2px var(--accent-primary); }

.ann-size, .ann-mode, .ann-action {
  width: 36px;
  height: 36px;
  border-radius: 6px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: all var(--transition-fast);
}

.ann-size:hover, .ann-mode:hover, .ann-action:hover {
  background: var(--bg-card-hover);
  color: var(--text-primary);
}

.ann-size.active, .ann-mode.active {
  background: var(--accent-primary);
  color: #fff;
}

.ann-size-dot {
  display: inline-block;
  background: currentColor;
  border-radius: 50%;
}
.ann-size-dot.s1 { width: 4px; height: 4px; }
.ann-size-dot.s2 { width: 8px; height: 8px; }
.ann-size-dot.s3 { width: 14px; height: 14px; }

.annotator-stage {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 20px;
  background:
    linear-gradient(45deg, #1a1d27 25%, transparent 25%),
    linear-gradient(-45deg, #1a1d27 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #1a1d27 75%),
    linear-gradient(-45deg, transparent 75%, #1a1d27 75%);
  background-size: 20px 20px;
  background-position: 0 0, 0 10px, 10px -10px, -10px 0;
  background-color: #0f1117;
}

#annotatorCanvas {
  cursor: crosshair;
  touch-action: none;
  background: #fff;
  box-shadow: 0 8px 32px rgba(0,0,0,0.6);
  border-radius: 4px;
}

@media (max-width: 768px) {
  .annotator-toolbar {
    padding: 8px;
    gap: 8px;
  }
  .ann-spacer {
    width: 100%;
    justify-content: flex-end;
  }
  .lightbox-annotate {
    right: 16px;
    top: 16px;
    padding: 8px 12px;
    font-size: 0.8rem;
  }
}

/* ============================================================
   Welcome Panel (User Mode)
   ============================================================ */
.welcome-panel {
  margin-bottom: 32px;
  display: none;
  animation: fadeIn 0.4s ease;
}

.welcome-hero {
  background: linear-gradient(135deg, rgba(99,102,241,0.18), rgba(167,139,250,0.10));
  border: 1px solid rgba(99,102,241,0.25);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 24px;
  position: relative;
  overflow: hidden;
}

.welcome-hero::before {
  content: '';
  position: absolute;
  top: -60%;
  right: -10%;
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, rgba(167,139,250,0.25), transparent 65%);
  pointer-events: none;
}

.welcome-greeting h2 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--text-primary);
}

.welcome-greeting p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.welcome-stats {
  display: flex;
  gap: 14px;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}

.welcome-stat {
  background: rgba(15,17,23,0.5);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 14px 22px;
  text-align: center;
  min-width: 90px;
  backdrop-filter: blur(6px);
}

.ws-value {
  font-size: 1.6rem;
  font-weight: 700;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
}

.ws-label {
  color: var(--text-secondary);
  font-size: 0.78rem;
  margin-top: 4px;
}

.welcome-section {
  margin-bottom: 20px;
}

.welcome-section h3 {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 10px;
  font-weight: 500;
}

.recent-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.recent-chip {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-family: inherit;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.recent-chip:hover {
  border-color: var(--accent-primary);
  background: rgba(99,102,241,0.12);
  transform: translateY(-1px);
}

.recent-empty {
  color: var(--text-muted);
  font-size: 0.85rem;
  font-style: italic;
}

.welcome-tips {
  padding: 12px 16px;
  background: rgba(99,102,241,0.06);
  border-left: 3px solid var(--accent-primary);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.welcome-tips kbd {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 1px 8px;
  font-family: monospace;
  font-size: 0.85em;
  color: var(--text-primary);
}

/* ============================================================
   Icon button (card actions)
   ============================================================ */
.icon-btn {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background: var(--bg-secondary);
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 0.95rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.icon-btn:hover {
  border-color: var(--accent-primary);
  background: rgba(99,102,241,0.15);
  color: var(--accent-primary-hover);
  transform: translateY(-1px);
}

/* ============================================================
   QR Code Modal
   ============================================================ */
.qr-container {
  text-align: center;
  padding: 8px 0;
}

.qr-svg {
  background: #fff;
  padding: 16px;
  border-radius: var(--radius-md);
  display: inline-block;
  margin-bottom: 16px;
}

.qr-svg svg {
  width: 240px;
  height: 240px;
  display: block;
}

.qr-pid {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.qr-url-row {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.qr-url-row .form-input {
  flex: 1;
  font-size: 0.85rem;
}

.qr-tip {
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* ============================================================
   Search highlight
   ============================================================ */
mark {
  background: rgba(245,158,11,0.35);
  color: var(--text-primary);
  padding: 1px 3px;
  border-radius: 3px;
}

/* ============================================================
   Print
   ============================================================ */
@media print {
  body * { visibility: hidden; }
  .print-only, .print-only * { visibility: visible; }
}

/* ============================================================
   Responsive (welcome)
   ============================================================ */
@media (max-width: 640px) {
  .welcome-hero {
    padding: 20px;
  }
  .welcome-stats {
    width: 100%;
    justify-content: space-between;
  }
  .welcome-stat {
    flex: 1;
    padding: 12px 8px;
    min-width: 0;
  }
  .ws-value { font-size: 1.3rem; }
}

/* ============================================================
   Folder View
   ============================================================ */
.folder-container {
  margin-bottom: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.folder-header {
  padding: 16px 20px;
  display: flex;
  align-items: center;
  cursor: pointer;
  background: var(--bg-secondary);
  transition: background var(--transition-fast);
  user-select: none;
}

.folder-header:hover {
  background: var(--bg-card-hover);
}

.folder-icon {
  margin-right: 12px;
  font-size: 1.2rem;
}

.folder-name {
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--text-primary);
  flex: 1;
}

.folder-count {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-right: 12px;
}

.folder-toggle {
  color: var(--text-secondary);
  font-size: 0.8rem;
}

.folder-content {
  padding: 20px;
  border-top: 1px solid var(--border-color);
}