/* ============================================================
   Free Quote Maker Studio — Pro Workspace Stylesheet
   Direction: Premium Minimalist (Ink Navy, Restrained Indigo, White)
   ============================================================ */

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

:root {
  --sidebar-width: 480px;
}

[data-theme="dark"] {
  --wq-bg-page: #121620;
  --wq-surface: #1A202C;
  --wq-surface-subtle: #222938;
  --wq-surface-elevated: #262E3E;
  --wq-border-subtle: #2D3748;
  --wq-border-default: #3A4659;
  --wq-text-primary: #F0F4F8;
  --wq-text-secondary: #A0AEC0;
  --wq-text-muted: #718096;
}

html, body {
  height: 100%;
  font-family: var(--wq-font-sans);
  color: var(--wq-text-primary);
  background-color: var(--wq-bg-page);
  -webkit-font-smoothing: antialiased;
}

.studio-app {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

/* ============================================================
   1. TOPBAR
   ============================================================ */
.studio-topbar {
  height: 60px;
  background: var(--wq-surface);
  border-bottom: 1px solid var(--wq-border-default);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  z-index: 50;
  flex-shrink: 0;
  position: relative;
}

/* Dynamic ambient topbar shimmer line */
.studio-topbar::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, #4F46E5, #06B6D4, #10B981, #F59E0B, #EC4899, #4F46E5);
  background-size: 300% 100%;
  animation: topbarAmbientFlow 8s linear infinite;
  opacity: 0.85;
}

@keyframes topbarAmbientFlow {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.topbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.wq-logo-mark {
  width: 40px;
  height: 40px;
  display: block;
  flex-shrink: 0;
  border-radius: 9px;
  filter: drop-shadow(0 2px 8px rgba(79, 70, 229, 0.32));
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), filter 0.25s ease;
}

.topbar-brand:hover .wq-logo-mark {
  transform: translateY(-1px) scale(1.06);
  filter: drop-shadow(0 4px 12px rgba(79, 70, 229, 0.45));
}

.topbar-brand-text {
  display: flex;
  align-items: center;
  gap: 7px;
}

.topbar-title {
  font-weight: 800;
  font-size: 16px;
  color: var(--wq-text-primary);
  letter-spacing: -0.02em;
}

.topbar-tag {
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.08em;
  background: var(--wq-primary-light);
  color: var(--wq-primary);
  padding: 2px 6px;
  border-radius: 4px;
}

.topbar-divider {
  width: 1px;
  height: 22px;
  background: var(--wq-border-default);
  margin: 0 4px;
}

/* Canva-Style Menubar */
.canva-menubar {
  display: flex;
  align-items: center;
  gap: 4px;
}

.menu-pill-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--wq-text-primary);
  font-size: 13px;
  font-weight: 600;
  padding: 5px 9px;
  border-radius: var(--wq-radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: all var(--wq-transition-fast);
}

.menu-pill-btn:hover, .menu-pill-btn.active {
  background: var(--wq-surface-subtle);
  border-color: var(--wq-border-subtle);
}

.menu-pill-btn .arrow {
  font-size: 9px;
  opacity: 0.6;
}

/* Canva Document Title Editor */
.doc-title-editor {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--wq-surface-subtle);
  border: 1px solid var(--wq-border-subtle);
  padding: 3px 8px;
  border-radius: 6px;
  transition: all var(--wq-transition-fast);
}

.doc-title-editor:hover, .doc-title-editor:focus-within {
  border-color: var(--wq-primary);
  box-shadow: 0 0 0 2px rgba(98, 87, 232, 0.15);
}

.doc-mode-pill {
  font-size: 10px;
  font-weight: 800;
  padding: 2px 5px;
  border-radius: 4px;
  background: var(--wq-primary);
  color: #FFFFFF;
  letter-spacing: 0.5px;
}

.doc-title-input {
  background: transparent;
  border: none;
  font-weight: 700;
  font-size: 12.5px;
  color: var(--wq-text-primary);
  width: 130px;
  outline: none;
  font-family: inherit;
}

.doc-type-switcher {
  cursor: pointer;
  margin-left: 2px;
}

.switch-badge {
  font-size: 10.5px;
  font-weight: 600;
  color: var(--wq-text-secondary);
  background: var(--wq-surface);
  border: 1px solid var(--wq-border-default);
  padding: 2px 6px;
  border-radius: 4px;
  transition: all var(--wq-transition-fast);
  display: inline-block;
  user-select: none;
}

.switch-badge:hover {
  color: var(--wq-primary);
  border-color: var(--wq-primary);
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.icon-btn {
  background: var(--wq-surface-subtle);
  border: 1px solid var(--wq-border-subtle);
  color: var(--wq-text-secondary);
  border-radius: var(--wq-radius-sm);
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--wq-transition-fast);
  font-size: 14px;
}

.icon-btn:hover:not(:disabled) {
  background: var(--wq-surface-elevated);
  color: var(--wq-text-primary);
  border-color: var(--wq-border-default);
}

.icon-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.autosave-tag {
  font-size: 11.5px;
  font-weight: 600;
  color: var(--wq-success);
  background: var(--wq-success-bg);
  padding: 3px 9px;
  border-radius: var(--wq-radius-full);
  border: 1px solid rgba(22, 132, 91, 0.25);
  display: flex;
  align-items: center;
  gap: 7px;
  margin: 0 4px;
  transition: all var(--wq-transition-fast);
}

.autosave-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--wq-success);
  position: relative;
  display: inline-block;
}

.autosave-dot::after {
  content: "";
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  border: 2px solid var(--wq-success);
  animation: autosavePulse 2.4s cubic-bezier(0, 0, 0.2, 1) infinite;
}

@keyframes autosavePulse {
  0% { transform: scale(0.9); opacity: 0.9; }
  60% { transform: scale(2.2); opacity: 0; }
  100% { transform: scale(2.2); opacity: 0; }
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: var(--wq-radius-sm);
  font-size: 13px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--wq-transition-fast);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--wq-primary);
  color: #fff;
  box-shadow: 0 1px 3px rgba(98, 87, 232, 0.2);
}

.btn-primary:hover {
  background: var(--wq-primary-hover);
  box-shadow: 0 3px 8px rgba(98, 87, 232, 0.3);
}

.btn-outline {
  background: var(--wq-surface);
  border-color: var(--wq-border-default);
  color: var(--wq-text-primary);
}

.btn-outline:hover {
  background: var(--wq-surface-subtle);
}

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

.btn-ghost:hover {
  background: var(--wq-surface-subtle);
  color: var(--wq-text-primary);
}

.btn-danger {
  color: var(--wq-danger);
}

.btn-danger:hover {
  background: var(--wq-danger-bg);
}

/* Dropdown Menu */
.dropdown-wrap {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  background: var(--wq-surface);
  border: 1px solid var(--wq-border-default);
  border-radius: var(--wq-radius-md);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.25), 0 2px 6px rgba(0, 0, 0, 0.08);
  min-width: 220px;
  z-index: 1000;
  padding: 6px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.dropdown-menu-right {
  left: auto;
  right: 0;
}

.dropdown-menu[hidden] {
  display: none !important;
}

.dropdown-menu button {
  width: 100%;
  text-align: left;
  background: transparent;
  border: none;
  padding: 8px 12px;
  font-size: 13px;
  font-weight: 500;
  color: var(--wq-text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-radius: 4px;
  transition: all var(--wq-transition-fast);
}

.dropdown-menu button:hover:not(:disabled) {
  background: var(--wq-surface-subtle);
  color: var(--wq-primary);
}

.dropdown-menu button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.dropdown-menu kbd {
  font-size: 10.5px;
  font-family: inherit;
  color: var(--wq-text-muted);
  background: var(--wq-surface-subtle);
  border: 1px solid var(--wq-border-subtle);
  padding: 1px 5px;
  border-radius: 4px;
}

.dropdown-sep {
  height: 1px;
  background: var(--wq-border-subtle);
  margin: 4px 6px;
}

/* Canva Action Button */
.btn-canva-action {
  background: linear-gradient(135deg, #6257E8 0%, #4F46E5 100%) !important;
  color: #FFFFFF !important;
  font-weight: 700 !important;
  border: none !important;
  box-shadow: 0 2px 10px rgba(98, 87, 232, 0.35) !important;
}

.btn-canva-action:hover {
  box-shadow: 0 4px 16px rgba(98, 87, 232, 0.5) !important;
  transform: translateY(-1px);
}

/* Validation Alert Banner */
.validation-banner {
  background: #FFFBEB !important;
  color: #92400E !important;
  border-bottom: 1px solid #FDE68A !important;
  padding: 8px 20px !important;
  font-size: 12.5px !important;
  font-weight: 600 !important;
  z-index: 40 !important;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.validation-banner::before {
  display: none !important;
}

[data-theme="dark"] .validation-banner {
  background: #2E2008 !important;
  color: #FCD34D !important;
  border-bottom: 1px solid #78350F !important;
}

.validation-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.val-close-btn {
  background: none;
  border: none;
  color: inherit;
  font-size: 15px;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 4px;
  opacity: 0.7;
}

.val-close-btn:hover {
  opacity: 1;
}

/* ============================================================
   2. MAIN WORKSPACE LAYOUT
   ============================================================ */
.studio-workspace {
  display: flex;
  flex: 1;
  overflow: hidden;
  position: relative;
}

/* Mobile Segment Toggle */
.mobile-segment-bar {
  display: none;
  background: var(--wq-surface);
  border-bottom: 1px solid var(--wq-border-default);
  padding: 8px 16px;
  justify-content: center;
  gap: 8px;
}

.segment-btn {
  flex: 1;
  padding: 8px 12px;
  border-radius: var(--wq-radius-sm);
  border: 1px solid var(--wq-border-default);
  background: var(--wq-surface-subtle);
  font-size: 13px;
  font-weight: 600;
  color: var(--wq-text-secondary);
  cursor: pointer;
}

.segment-btn.active {
  background: var(--wq-primary);
  color: #fff;
  border-color: var(--wq-primary);
}

/* Left: Form Builder Panel */
.builder-panel {
  width: var(--sidebar-width);
  background: var(--wq-surface);
  border-right: 1px solid var(--wq-border-default);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  flex-shrink: 0;
}

/* Section Navigation Tabs */
.section-nav-tabs {
  display: flex;
  border-bottom: 1px solid var(--wq-border-default);
  background: var(--wq-surface-subtle);
  overflow-x: auto;
  scrollbar-width: none;
  position: sticky;
  top: 0;
  z-index: 10;
}

.section-nav-tabs::-webkit-scrollbar {
  display: none;
}

.nav-tab-btn {
  padding: 12px 16px;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  font-size: 13px;
  font-weight: 600;
  color: var(--wq-text-secondary);
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--wq-transition-fast);
}

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

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

.builder-content {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.tab-pane {
  display: none;
}

.tab-pane.active {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Form Cards & Fields */
.form-card {
  background: var(--wq-surface);
  border: 1px solid var(--wq-border-subtle);
  border-radius: var(--wq-radius-md);
  padding: 20px;
  box-shadow: var(--wq-shadow-xs);
}

.form-card-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--wq-text-primary);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 14px;
}

.field:last-child {
  margin-bottom: 0;
}

.field-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--wq-text-secondary);
  display: flex;
  justify-content: space-between;
}

.field input[type="text"],
.field input[type="email"],
.field input[type="date"],
.field input[type="number"],
.field select,
.field textarea {
  width: 100%;
  padding: 9px 12px;
  border-radius: var(--wq-radius-sm);
  border: 1px solid var(--wq-border-default);
  background: var(--wq-surface);
  color: var(--wq-text-primary);
  font-family: inherit;
  font-size: 13.5px;
  outline: none;
  transition: border-color var(--wq-transition-fast);
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--wq-border-focus);
  box-shadow: 0 0 0 3px var(--wq-primary-muted);
}

.field textarea {
  resize: vertical;
  min-height: 64px;
  line-height: 1.5;
}

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.field-hint {
  font-size: 11px;
  color: var(--wq-text-muted);
  line-height: 1.4;
  margin-top: 4px;
}

/* Switch & Checkbox */
.switch-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 0;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  color: var(--wq-text-primary);
}

/* Dynamic Item Rows */
.item-row {
  background: var(--wq-surface-subtle);
  border: 1px solid var(--wq-border-subtle);
  border-radius: var(--wq-radius-sm);
  padding: 12px;
  margin-bottom: 10px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.item-row-top {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.drag-handle {
  cursor: grab;
  color: var(--wq-text-muted);
  padding: 4px 2px;
  font-size: 16px;
}

.item-delete-btn {
  background: transparent;
  border: none;
  color: var(--wq-text-muted);
  cursor: pointer;
  padding: 4px;
  font-size: 14px;
}

.item-delete-btn:hover {
  color: var(--wq-danger);
}

.item-row-math {
  display: grid;
  grid-template-columns: 1fr 1.5fr 1.5fr;
  gap: 8px;
  align-items: center;
}

.item-amount-val {
  font-weight: 700;
  font-size: 13px;
  text-align: right;
  padding-right: 4px;
}

/* ============================================================
   3. RIGHT: LIVE A4 PREVIEW WORKSPACE
   ============================================================ */
.preview-workspace {
  flex: 1;
  background: var(--wq-bg-page);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
}

.preview-toolbar {
  height: 48px;
  background: var(--wq-surface);
  border-bottom: 1px solid var(--wq-border-default);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  font-size: 12.5px;
  color: var(--wq-text-secondary);
}

.zoom-controls {
  display: flex;
  align-items: center;
  gap: 6px;
}

.zoom-btn {
  background: var(--wq-surface-subtle);
  border: 1px solid var(--wq-border-subtle);
  color: var(--wq-text-secondary);
  border-radius: var(--wq-radius-xs);
  padding: 4px 8px;
  font-size: 11px;
  cursor: pointer;
}

.zoom-btn:hover {
  color: var(--wq-text-primary);
  background: var(--wq-surface-elevated);
}

.preview-scroll-area {
  flex: 1;
  overflow: auto;
  padding: 40px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
}

/* The A4 Canvas Sheet */
.a4-sheet {
  width: 210mm;
  min-height: 297mm;
  background: #FFFFFF;
  color: #20283B;
  box-shadow: 0 16px 40px -8px rgba(20, 24, 38, 0.12), 0 0 0 1px rgba(20, 24, 38, 0.04);
  border-radius: 2px;
  padding: 20mm;
  display: flex;
  flex-direction: column;
  position: relative;
  box-sizing: border-box;
  transform-origin: top center;
  transition: transform var(--wq-transition-fast);
}

/* Document Sheet Typography & Layout */
.doc-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 2px solid var(--accent-color, #6257E8);
}

.doc-logo-area {
  display: flex;
  align-items: center;
  gap: 16px;
}

.doc-logo-img {
  max-width: 120px;
  max-height: 60px;
  object-fit: contain;
}

.doc-company-title {
  font-size: 20px;
  font-weight: 800;
  color: #20283B;
}

.doc-company-meta {
  font-size: 11.5px;
  color: #58627A;
  line-height: 1.4;
  margin-top: 4px;
}

.doc-meta-title {
  font-size: 26px;
  font-weight: 800;
  color: var(--accent-color, #6257E8);
  text-align: right;
  letter-spacing: -0.02em;
}

.doc-meta-lines {
  font-size: 11.5px;
  color: #58627A;
  text-align: right;
  margin-top: 6px;
  line-height: 1.5;
}

.doc-validity-badge {
  display: inline-block;
  background: #EAF7F1;
  color: #16845B;
  font-size: 10.5px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 4px;
  margin-top: 6px;
}

.doc-parties {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-bottom: 24px;
}

.doc-party-col h4 {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent-color, #6257E8);
  margin-bottom: 6px;
  font-weight: 700;
}

.doc-party-name {
  font-size: 15px;
  font-weight: 700;
  color: #20283B;
}

.doc-party-lines {
  font-size: 11.5px;
  color: #58627A;
  line-height: 1.5;
  margin-top: 2px;
}

.doc-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 24px;
}

.doc-table th {
  background: var(--accent-color, #6257E8);
  color: #FFFFFF;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 8px 12px;
  text-align: left;
}

.doc-table th:last-child {
  text-align: right;
}

.doc-table td {
  padding: 10px 12px;
  border-bottom: 1px solid #E8ECF3;
  font-size: 12px;
  color: #20283B;
  vertical-align: top;
}

.doc-table td:last-child {
  text-align: right;
  font-weight: 600;
}

.doc-totals-box {
  margin-left: auto;
  width: 260px;
  margin-bottom: 24px;
}

.doc-totals-line {
  display: flex;
  justify-content: space-between;
  padding: 5px 0;
  font-size: 12px;
  color: #58627A;
}

.doc-totals-line.grand {
  border-top: 2px solid #20283B;
  margin-top: 8px;
  padding-top: 8px;
  font-size: 16px;
  font-weight: 800;
  color: var(--accent-color, #6257E8);
}

.doc-signatures-wrap {
  margin-top: auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  padding-top: 24px;
  border-top: 1px solid #E8ECF3;
}

.doc-sign-box {
  display: flex;
  flex-direction: column;
}

.doc-sign-line {
  border-top: 1px solid #20283B;
  margin-top: 48px;
  padding-top: 6px;
  font-size: 11px;
  color: #58627A;
}

/* ============================================================
   RESPONSIVE BREAKPOINTS
   ============================================================ */
@media (max-width: 1024px) {
  :root {
    --sidebar-width: 420px;
  }
}

@media (max-width: 768px) {
  .studio-app {
    height: 100vh;
  }
  .mobile-segment-bar {
    display: flex;
  }
  .builder-panel {
    width: 100%;
    display: flex;
  }
  .preview-workspace {
    display: none;
    width: 100%;
  }
  /* Active states via parent data-view */
  .studio-app[data-mobile-view="preview"] .builder-panel {
    display: none;
  }
  .studio-app[data-mobile-view="preview"] .preview-workspace {
    display: flex;
  }
  #preview, #coverPreview, .preview, .cover-page {
    transform: scale(0.44) !important;
    transform-origin: top center !important;
    margin-bottom: -580px !important;
  }
}

/* ============================================================
   REALISTIC PHYSICAL A4 DOCUMENT PAPER SURFACE
   ============================================================ */
.document {
  background: #FFFFFF !important;
  color: #171A2B !important;
  box-shadow: 0 16px 48px -8px rgba(0, 0, 0, 0.22), 0 0 0 1px rgba(0, 0, 0, 0.06) !important;
  border-radius: 3px !important;
}

.document .doc-company-name,
.document .name,
.document .num,
.document th,
.document td {
  color: #171A2B !important;
}

.document .doc-company-tagline,
.document .doc-company-meta,
.document .doc-meta-table,
.document .lines,
.document .sub,
.document .qr-caption,
.document .doc-thanks {
  color: #58627A !important;
}

.document .doc-title,
.document .doc-party h4,
.document .line.grand,
.document .line.grand .v {
  color: var(--doc-accent, #6257E8) !important;
}

.document thead th {
  background: var(--doc-accent, #6257E8) !important;
  color: #FFFFFF !important;
}

.document .doc-header {
  border-bottom: 2px solid var(--doc-accent, #6257E8) !important;
}

.studio-topbar {
  flex-wrap: nowrap !important;
  overflow: visible !important;
  position: relative;
  z-index: 200;
}

.topbar-left, .topbar-actions, .canva-menubar, .dropdown-wrap {
  overflow: visible !important;
}

.topbar-actions {
  flex-shrink: 0;
}

/* Ensure HTML5 [hidden] attribute is strictly respected */
[hidden], .share-banner[hidden], .validation-banner[hidden] {
  display: none !important;
}

/* ============================================================
   SECTION NAVIGATION TABS (All 5 Tabs 100% Visible & Balanced)
   ============================================================ */
.section-nav-tabs {
  display: grid !important;
  grid-template-columns: repeat(5, 1fr) !important;
  width: 100% !important;
  background: var(--wq-surface-subtle) !important;
  border-bottom: 1px solid var(--wq-border-default) !important;
  position: sticky !important;
  top: 0 !important;
  z-index: 20 !important;
  padding: 4px !important;
  gap: 3px !important;
  min-height: 48px !important;
  box-sizing: border-box !important;
}

.nav-tab-btn {
  display: flex !important;
  flex-direction: column !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 2px !important;
  padding: 6px 2px !important;
  font-size: 11px !important;
  font-weight: 600 !important;
  color: var(--wq-text-secondary) !important;
  border: 1px solid transparent !important;
  border-radius: var(--wq-radius-sm) !important;
  background: transparent !important;
  cursor: pointer !important;
  white-space: nowrap !important;
  transition: all var(--wq-transition-fast) !important;
  min-width: 0 !important;
}

.nav-tab-btn:hover {
  color: var(--wq-primary) !important;
  background: rgba(98, 87, 232, 0.06) !important;
}

.nav-tab-btn.active {
  color: var(--wq-primary) !important;
  background: var(--wq-surface) !important;
  border-color: var(--wq-border-subtle) !important;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06) !important;
  font-weight: 700 !important;
}

.nav-tab-btn .tab-icon {
  font-size: 14px;
  line-height: 1;
}

.nav-tab-btn .tab-text {
  font-size: 11px;
  line-height: 1.1;
  letter-spacing: -0.01em;
}

/* Tab entrance animation */
.tab-pane.active {
  display: flex !important;
  flex-direction: column !important;
  gap: 20px !important;
  animation: tabSlideFade 0.22s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes tabSlideFade {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================================
   COLLAPSIBLE 3-COLUMN WORKSPACE ARCHITECTURE
   ============================================================ */
.studio-workspace {
  display: flex;
  flex: 1;
  min-height: 0;
  overflow: hidden;
  position: relative;
  background: var(--wq-bg-page);
}

/* 1. Left Builder Panel */
.builder-panel {
  width: 460px;
  min-width: 460px;
  max-width: 460px;
  background: var(--wq-surface);
  border-right: 1px solid var(--wq-border-default);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  flex-shrink: 0;
  transition: width 0.28s cubic-bezier(0.4, 0, 0.2, 1), min-width 0.28s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  z-index: 10;
}

.builder-rail-icons {
  display: none;
}

/* Left Panel Collapsed State (Slim Rail Mode like TND Dashboard-2) */
.left-panel-collapsed .builder-panel {
  width: 58px !important;
  min-width: 58px !important;
  max-width: 58px !important;
  overflow: hidden !important;
}

.left-panel-collapsed .section-nav-tabs,
.left-panel-collapsed .builder-content {
  display: none !important;
}

.left-panel-collapsed .builder-rail-icons {
  display: flex !important;
  flex-direction: column !important;
  align-items: center !important;
  padding: 12px 6px !important;
  gap: 12px !important;
  height: 100% !important;
  background: var(--wq-surface) !important;
}

.rail-icon-btn {
  width: 42px;
  height: 42px;
  border-radius: var(--wq-radius-sm);
  border: 1px solid transparent;
  background: transparent;
  color: var(--wq-text-secondary);
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--wq-transition-fast);
  position: relative;
}

.rail-icon-btn:hover {
  background: var(--wq-surface-subtle);
  color: var(--wq-primary);
  border-color: var(--wq-border-subtle);
}

.rail-icon-btn.active {
  background: var(--wq-primary-light);
  color: var(--wq-primary);
  border-color: rgba(98, 87, 232, 0.2);
}

.rail-expand-btn {
  background: var(--wq-surface-subtle);
  border: 1px solid var(--wq-border-default);
  color: var(--wq-text-primary);
  margin-bottom: 8px;
}

/* 2. Center Live Preview Canvas */
.preview-workspace {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: radial-gradient(circle at 50% 50%, rgba(98, 87, 232, 0.035) 0%, transparent 70%), var(--wq-bg-page);
  position: relative;
}

/* Canvas Toolbar */
.preview-toolbar {
  height: 46px;
  background: var(--wq-surface);
  border-bottom: 1px solid var(--wq-border-default);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  font-size: 12.5px;
  color: var(--wq-text-secondary);
  flex-shrink: 0;
  z-index: 5;
}

.preview-toolbar-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.preview-toolbar-title {
  font-weight: 600;
  color: var(--wq-text-primary);
  display: flex;
  align-items: center;
  gap: 6px;
}

.panel-toggle-pill {
  background: var(--wq-surface-subtle);
  border: 1px solid var(--wq-border-default);
  color: var(--wq-text-secondary);
  padding: 3px 8px;
  border-radius: var(--wq-radius-sm);
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: all var(--wq-transition-fast);
}

.panel-toggle-pill:hover {
  background: var(--wq-surface-elevated);
  color: var(--wq-primary);
  border-color: var(--wq-primary);
}

/* Canva-Style Interactive Zoom Controls */
.zoom-pill-group {
  display: inline-flex;
  align-items: center;
  background: var(--wq-surface);
  border: 1px solid var(--wq-border-default);
  border-radius: var(--wq-radius-full);
  padding: 2px 4px;
  box-shadow: var(--wq-shadow-xs);
  gap: 2px;
}

.zoom-pill-group .zoom-btn {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: none;
  background: transparent;
  color: var(--wq-text-secondary);
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--wq-transition-fast);
  line-height: 1;
}

.zoom-pill-group .zoom-btn:hover {
  background: var(--wq-surface-subtle);
  color: var(--wq-text-primary);
}

.zoom-val-badge {
  padding: 2px 8px;
  font-size: 12px;
  font-weight: 600;
  color: var(--wq-text-primary);
  min-width: 48px;
  text-align: center;
  font-family: var(--wq-font-mono);
  user-select: none;
  cursor: pointer;
  border-radius: 4px;
  transition: background var(--wq-transition-fast);
}

.zoom-val-badge:hover {
  background: var(--wq-surface-subtle);
  color: var(--wq-primary);
}

.zoom-divider {
  width: 1px;
  height: 14px;
  background: var(--wq-border-default);
  margin: 0 3px;
}

.zoom-pill-group .zoom-fit-btn {
  width: auto;
  border-radius: var(--wq-radius-full);
  padding: 0 8px;
  font-size: 11.5px;
  font-weight: 600;
}

/* 3. Right Supporting Inspector Panel (TND-Dashboard-2 Style) */
.inspector-panel {
  width: 310px;
  min-width: 310px;
  max-width: 310px;
  background: var(--wq-surface);
  border-left: 1px solid var(--wq-border-default);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  flex-shrink: 0;
  transition: width 0.28s cubic-bezier(0.4, 0, 0.2, 1), min-width 0.28s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.25s ease;
  z-index: 15;
}

.right-panel-collapsed .inspector-panel {
  width: 0 !important;
  min-width: 0 !important;
  max-width: 0 !important;
  border-left: none !important;
  padding: 0 !important;
  overflow: hidden !important;
  opacity: 0 !important;
  pointer-events: none !important;
}

.inspector-header {
  height: 48px;
  padding: 0 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--wq-border-default);
  background: var(--wq-surface-subtle);
  position: sticky;
  top: 0;
  z-index: 10;
}

.inspector-title-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  color: var(--wq-text-primary);
}

.pulse-beacon {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--wq-success);
  display: inline-block;
  box-shadow: 0 0 0 2px rgba(22, 132, 91, 0.3);
  animation: autosavePulse 2s infinite;
}

.inspector-close-btn {
  background: transparent;
  border: none;
  font-size: 14px;
  color: var(--wq-text-secondary);
  cursor: pointer;
  padding: 4px;
  border-radius: var(--wq-radius-xs);
  display: flex;
  align-items: center;
  justify-content: center;
}

.inspector-close-btn:hover {
  background: var(--wq-surface);
  color: var(--wq-text-primary);
}

.inspector-body {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* Inspector Financial Card */
.inspector-total-card {
  background: linear-gradient(135deg, #1E1B4B 0%, #312E81 100%);
  color: #FFFFFF;
  border-radius: var(--wq-radius-md);
  padding: 16px;
  box-shadow: 0 8px 24px -4px rgba(49, 46, 129, 0.25);
  position: relative;
  overflow: hidden;
}

.inspector-total-card::after {
  content: "";
  position: absolute;
  top: -20px;
  right: -20px;
  width: 80px;
  height: 80px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.4) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.inspector-total-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 4px;
}

.inspector-total-val {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #FFFFFF;
  font-family: var(--wq-font-sans);
}

.inspector-breakdown {
  display: flex;
  justify-content: space-between;
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  font-size: 11.5px;
  color: rgba(255, 255, 255, 0.8);
}

/* Inspector Section Box */
.inspector-box {
  background: var(--wq-surface);
  border: 1px solid var(--wq-border-subtle);
  border-radius: var(--wq-radius-md);
  padding: 14px;
  box-shadow: var(--wq-shadow-xs);
}

.inspector-box-title {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--wq-text-muted);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Color swatches in right panel */
.inspector-swatches {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.color-swatch-btn {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  padding: 0;
  transition: transform var(--wq-transition-fast), box-shadow var(--wq-transition-fast);
}

.color-swatch-btn:hover {
  transform: scale(1.18);
}

.color-swatch-btn.active {
  box-shadow: 0 0 0 2px var(--wq-surface), 0 0 0 4px var(--wq-primary);
  transform: scale(1.1);
}

/* Quick Template Switcher Cards */
.inspector-templates {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.tpl-quick-btn {
  background: var(--wq-surface-subtle);
  border: 1.5px solid var(--wq-border-default);
  border-radius: var(--wq-radius-sm);
  padding: 8px 6px;
  font-size: 11.5px;
  font-weight: 600;
  color: var(--wq-text-secondary);
  cursor: pointer;
  text-align: center;
  transition: all var(--wq-transition-fast);
}

.tpl-quick-btn:hover {
  background: var(--wq-surface);
  border-color: var(--wq-primary);
  color: var(--wq-primary);
  transform: translateY(-1px);
}

.tpl-quick-btn.active {
  background: var(--wq-primary-light);
  border-color: var(--wq-primary);
  color: var(--wq-primary);
  font-weight: 700;
  box-shadow: 0 2px 6px rgba(98, 87, 232, 0.18);
}

/* Quick Action Stack */
.inspector-actions-stack {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* ============================================================
   CHECKBOX & TOGGLE SETTINGS CARDS (Issue 5 & 6)
   ============================================================ */
.checkbox-setting-card {
  background: var(--wq-surface-subtle);
  border: 1px solid var(--wq-border-subtle);
  border-radius: var(--wq-radius-sm);
  padding: 12px 14px;
  margin-bottom: 12px;
  transition: border-color var(--wq-transition-fast), background var(--wq-transition-fast);
}

.checkbox-setting-card:hover {
  border-color: var(--wq-primary);
  background: rgba(98, 87, 232, 0.03);
}

.custom-checkbox-row {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  cursor: pointer;
  user-select: none;
  width: 100%;
}

.wq-checkbox-input {
  width: 18px;
  height: 18px;
  accent-color: var(--wq-primary);
  cursor: pointer;
  margin-top: 2px;
  flex-shrink: 0;
}

.checkbox-labels {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.checkbox-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--wq-text-primary);
}

.checkbox-hint {
  font-size: 12px;
  color: var(--wq-text-secondary);
  line-height: 1.35;
}

/* Document Live Preview Terms Box */
.doc-terms-box {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 8px;
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 11.5px;
  font-weight: 600;
  border: 1px solid transparent;
}

.doc-terms-box.accepted {
  background: #EAF7F1;
  color: #16845B;
  border-color: #A3E0C8;
}

.doc-terms-box.unaccepted {
  background: #F8FAFC;
  color: #64748B;
  border-color: #CBD5E1;
}

.terms-chk {
  font-size: 13.5px;
  font-weight: 700;
  line-height: 1;
}

/* Smooth zoom transition on docPages */
.doc-pages {
  transition: transform 0.15s cubic-bezier(0.16, 1, 0.3, 1);
  transform-origin: top center;
}




/* High-Contrast Adjustments for Dark Mode */
[data-theme="dark"] .preview-toolbar {
  background: #1A202C !important;
  border-bottom-color: #2D3748 !important;
}

[data-theme="dark"] .preview-toolbar-title {
  color: #F0F4F8 !important;
}

[data-theme="dark"] .zoom-pill-group {
  background: #222938 !important;
  border-color: #2D3748 !important;
}

[data-theme="dark"] .zoom-val-badge {
  color: #F0F4F8 !important;
}

[data-theme="dark"] .zoom-btn {
  color: #A0AEC0 !important;
}

[data-theme="dark"] .zoom-btn:hover {
  background: #2D3748 !important;
  color: #FFFFFF !important;
}

[data-theme="dark"] .panel-toggle-pill {
  background: #222938 !important;
  border-color: #2D3748 !important;
  color: #E2E8F0 !important;
}

[data-theme="dark"] .panel-toggle-pill:hover {
  background: #2D3748 !important;
  color: #FFFFFF !important;
  border-color: var(--wq-primary) !important;
}

[data-theme="dark"] .inspector-header {
  background: #1A202C !important;
  border-bottom-color: #2D3748 !important;
}

[data-theme="dark"] .inspector-title-wrap {
  color: #F0F4F8 !important;
}

[data-theme="dark"] .inspector-box {
  background: #1A202C !important;
  border-color: #2D3748 !important;
}

[data-theme="dark"] .inspector-box-title {
  color: #A0AEC0 !important;
}

[data-theme="dark"] .tpl-quick-btn {
  background: #222938 !important;
  border-color: #2D3748 !important;
  color: #CBD5E1 !important;
}

[data-theme="dark"] .tpl-quick-btn:hover {
  border-color: var(--wq-primary) !important;
  color: #FFFFFF !important;
}

[data-theme="dark"] .tpl-quick-btn.active {
  background: rgba(98, 87, 232, 0.25) !important;
  border-color: var(--wq-primary) !important;
  color: #FFFFFF !important;
}

[data-theme="dark"] .checkbox-setting-card {
  background: #222938 !important;
  border-color: #2D3748 !important;
}

[data-theme="dark"] .checkbox-title {
  color: #F0F4F8 !important;
}

[data-theme="dark"] .checkbox-hint {
  color: #A0AEC0 !important;
}

[data-theme="dark"] .form-card-title {
  color: #F0F4F8 !important;
}

[data-theme="dark"] .field-label {
  color: #CBD5E1 !important;
}