/* Breadcrumb Navigation */
.breadcrumb-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

.breadcrumb-nav a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.breadcrumb-nav a:hover {
  color: var(--primary);
}

.breadcrumb-nav .sep {
  opacity: 0.5;
}

.breadcrumb-nav .current {
  color: var(--text-primary);
  font-weight: 600;
}

.tool-layout, .tool-main {
  padding: 2.5rem 0 5rem;
  min-height: calc(100vh - var(--navbar-height) - 200px);
}

.tool-header-block, .tool-hero {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 2.5rem;
}

.tool-category-pill, .category-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--primary);
  background: var(--primary-light);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  margin-bottom: 0.9rem;
}

.tool-main-title, .tool-title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
  line-height: 1.2;
}

.tool-sub-desc, .tool-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Upload Dropzone */
.dropzone-container, .dropzone-wrapper {
  max-width: 820px;
  margin: 0 auto;
}

.dropzone {
  border: 2px dashed var(--border-color);
  background: var(--bg-surface);
  border-radius: var(--radius-xl);
  padding: 4.5rem 2rem;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.dropzone:hover, .dropzone.dragover {
  border-color: var(--primary);
  background: rgba(99, 102, 241, 0.03);
  transform: scale(1.008);
  box-shadow: var(--shadow-xl), 0 0 0 6px var(--primary-light);
}

.dropzone-icon-circle {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(236, 72, 153, 0.15));
  color: var(--primary);
  display: grid;
  place-items: center;
  font-size: 2.2rem;
  margin: 0 auto 1.5rem;
  transition: transform var(--transition-spring);
}

.dropzone:hover .dropzone-icon-circle {
  transform: translateY(-4px) scale(1.05);
}

.dropzone-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.dropzone-subtitle, .dropzone-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.btn-upload-cta, .btn-select-file {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
  color: white;
  font-size: 1.05rem;
  font-weight: 700;
  padding: 0.9rem 2.25rem;
  border-radius: var(--radius-full);
  box-shadow: 0 4px 18px var(--primary-glow);
  transition: all var(--transition-fast);
  border: none;
  cursor: pointer;
  text-decoration: none;
}

.btn-upload-cta:hover, .btn-select-file:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 22px var(--primary-glow);
}

.privacy-badge, .dropzone-privacy-note {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin-top: 1.75rem;
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 500;
}

.privacy-badge svg, .dropzone-privacy-note svg {
  color: var(--success);
}

/* Tool Active Workspace */
.workspace-wrapper {
  max-width: 1040px;
  margin: 0 auto;
  display: none; /* Shown via JS when files are loaded */
}

.workspace-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1rem 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.file-stats {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.stat-chip {
  background: var(--bg-subtle);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-weight: 700;
}

.toolbar-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.6rem 1rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.btn-secondary:hover {
  background: var(--bg-surface-elevated);
  color: var(--text-primary);
  border-color: var(--text-muted);
}

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

.btn-danger:hover {
  background: rgba(244, 63, 94, 0.1);
  border-color: rgba(244, 63, 94, 0.3);
}

/* Files Cards Grid */
.files-sortable-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2.5rem;
}

.file-item-card {
  background: var(--bg-surface);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.1rem;
  position: relative;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  cursor: grab;
  user-select: none;
}

.file-item-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

.file-item-card.dragging {
  opacity: 0.4;
  border-style: dashed;
}

.file-item-card.drag-target {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
}

.file-order-badge {
  position: absolute;
  top: 0.8rem;
  left: 0.8rem;
  background: var(--primary);
  color: white;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 0.75rem;
  font-weight: 800;
  box-shadow: var(--shadow-sm);
  z-index: 2;
}

.file-actions-top {
  position: absolute;
  top: 0.8rem;
  right: 0.8rem;
  display: flex;
  gap: 0.3rem;
  z-index: 2;
}

.btn-icon-card {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  background: rgba(0, 0, 0, 0.65);
  color: white;
  display: grid;
  place-items: center;
  font-size: 0.75rem;
  transition: background var(--transition-fast);
}

.btn-icon-card:hover {
  background: var(--accent);
}

/* Thumbnail preview canvas */
.preview-container {
  width: 100%;
  aspect-ratio: 1 / 1.35;
  background: var(--bg-subtle);
  border-radius: var(--radius-md);
  margin-bottom: 0.85rem;
  overflow: hidden;
  display: grid;
  place-items: center;
  position: relative;
  border: 1px solid var(--border-color);
}

.preview-canvas {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  box-shadow: var(--shadow-sm);
}

.preview-placeholder {
  color: var(--text-muted);
  font-size: 2.2rem;
}

.file-info {
  margin-top: auto;
}

.file-name-text {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 0.25rem;
}

.file-meta-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* Card Page Range & Rotation Controls */
.card-tools-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-top: 0.65rem;
  padding-top: 0.55rem;
  border-top: 1px solid var(--border-color);
}

.page-range-box {
  flex-grow: 1;
}

.page-range-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-muted);
  display: block;
  margin-bottom: 0.2rem;
}

.page-range-input {
  width: 100%;
  font-size: 0.78rem;
  padding: 0.3rem 0.5rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: var(--bg-subtle);
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--transition-fast);
}

.page-range-input:focus {
  border-color: var(--primary);
  background: var(--bg-surface);
}

.btn-rotate-card {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
  padding: 0.3rem 0.55rem;
  border-radius: var(--radius-sm);
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-weight: 700;
  margin-top: 0.95rem;
  transition: all var(--transition-fast);
}

.btn-rotate-card:hover {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

/* Collapsible Advanced Options Toggle Bar */
.pro-toggle-wrapper {
  margin: 1.5rem 0 2rem;
}

.btn-advance-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.4rem;
  background: var(--bg-surface);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-lg);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.btn-advance-toggle:hover {
  border-color: var(--primary);
  background: var(--bg-surface-elevated);
}

.toggle-btn-left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.toggle-icon-pill {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: var(--primary-light);
  color: var(--primary);
  display: grid;
  place-items: center;
  font-size: 1rem;
}

.toggle-btn-title {
  font-size: 1rem;
  font-weight: 800;
}

.toggle-btn-badge {
  font-size: 0.72rem;
  font-weight: 700;
  background: rgba(99, 102, 241, 0.12);
  color: var(--primary);
  padding: 0.18rem 0.6rem;
  border-radius: var(--radius-full);
}

.toggle-btn-arrow {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.82rem;
  color: var(--text-secondary);
  font-weight: 600;
}

.toggle-btn-arrow svg {
  transition: transform var(--transition-normal);
}

.btn-advance-toggle.open .toggle-btn-arrow svg {
  transform: rotate(180deg);
}

.advance-options-collapsible {
  display: none;
  background: var(--bg-surface);
  border: 1.5px solid var(--border-color);
  border-top: none;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  padding: 1.5rem;
  animation: fadeIn 0.2s ease;
}

.advance-options-collapsible.open {
  display: block;
}

.pro-options-inner {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
}

/* Split PDF Specific Styles */
.split-mode-tabs-container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.split-mode-tab {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.75rem 1.4rem;
  font-size: 0.95rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  background: var(--bg-surface);
  border: 1.5px solid var(--border-color);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.split-mode-tab:hover {
  border-color: var(--primary);
  color: var(--text-primary);
}

.split-mode-tab.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
  box-shadow: 0 4px 14px var(--primary-glow);
}

.quick-select-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 0.85rem 1.25rem;
  margin-bottom: 1.5rem;
}

.quick-select-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.btn-pill-filter {
  padding: 0.35rem 0.85rem;
  font-size: 0.8rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.btn-pill-filter:hover {
  background: var(--primary-light);
  color: var(--primary);
  border-color: var(--primary);
}

/* Visual Split Pages Grid */
.split-pages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 1.15rem;
  margin-bottom: 2.5rem;
}

.split-page-card {
  background: var(--bg-surface);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 0.75rem;
  position: relative;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
  user-select: none;
}

.split-page-card:hover {
  transform: translateY(-3px);
  border-color: rgba(99, 102, 241, 0.5);
  box-shadow: var(--shadow-md);
}

.split-page-card.selected {
  border-color: var(--primary);
  background: rgba(99, 102, 241, 0.03);
  box-shadow: 0 0 0 3px var(--primary-light), var(--shadow-lg);
}

.page-select-checkbox {
  position: absolute;
  top: 0.65rem;
  right: 0.65rem;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--bg-surface);
  border: 1.5px solid var(--border-color);
  display: grid;
  place-items: center;
  color: transparent;
  transition: all var(--transition-fast);
  z-index: 2;
  box-shadow: var(--shadow-sm);
}

.split-page-card.selected .page-select-checkbox {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
}

.page-number-tag {
  position: absolute;
  top: 0.65rem;
  left: 0.65rem;
  font-size: 0.7rem;
  font-weight: 800;
  background: rgba(0, 0, 0, 0.65);
  color: white;
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-sm);
  z-index: 2;
}

.page-canvas-wrapper {
  width: 100%;
  aspect-ratio: 1 / 1.35;
  background: var(--bg-subtle);
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.page-canvas-wrapper canvas {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

/* Custom Ranges List */
.ranges-container-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 2rem;
  margin-bottom: 2rem;
}

.range-item-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.85rem 1rem;
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  margin-bottom: 0.75rem;
}

.range-badge {
  font-size: 0.82rem;
  font-weight: 800;
  color: var(--primary);
  background: var(--primary-light);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-sm);
}

.range-inputs-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.range-num-input {
  width: 80px;
  text-align: center;
  padding: 0.4rem;
}

/* Individual Feature Card */
.pro-feature-card {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.4rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all var(--transition-fast);
}

.pro-feature-card:hover {
  border-color: rgba(99, 102, 241, 0.35);
  background: var(--bg-surface-elevated);
}

.feature-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 0.85rem;
}

.feature-title-wrap {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.feature-icon-chip {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  font-size: 1rem;
}

.feature-title-wrap h5 {
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--text-primary);
}

.feature-card-desc {
  font-size: 0.84rem;
  color: var(--text-secondary);
  line-height: 1.45;
  margin-bottom: 1.15rem;
}

/* Modern iOS Style Toggle Switch */
.switch-wrapper {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
  flex-shrink: 0;
}

.switch-wrapper input {
  opacity: 0;
  width: 0;
  height: 0;
}

.switch-slider {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background-color: var(--border-color);
  transition: var(--transition-fast);
  border-radius: 24px;
}

.switch-slider::before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: var(--transition-fast);
  border-radius: 50%;
  box-shadow: 0 1px 3px rgba(0,0,0,0.25);
}

.switch-wrapper input:checked + .switch-slider {
  background-color: var(--primary);
}

.switch-wrapper input:checked + .switch-slider::before {
  transform: translateX(20px);
}

/* Feature Inputs Sub-panel */
.feature-controls-area {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin-top: auto;
  padding-top: 0.75rem;
  border-top: 1px dashed var(--border-color);
}

.feature-input-row {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.feature-input-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

.pro-select, .pro-input {
  width: 100%;
  padding: 0.6rem 0.85rem;
  font-size: 0.88rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  color: var(--text-primary);
  outline: none;
  transition: all var(--transition-fast);
}

.pro-select:focus, .pro-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-light);
}

/* Reorder Buttons Row */
.order-controls {
  display: flex;
  justify-content: space-between;
  margin-top: 0.75rem;
  padding-top: 0.6rem;
  border-top: 1px dashed var(--border-color);
}

.btn-arrow-order {
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-subtle);
  transition: all var(--transition-fast);
}

.btn-arrow-order:hover:not(:disabled) {
  background: var(--primary);
  color: white;
}

.btn-arrow-order:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

/* Process Execution Bar */
.action-process-bar {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 1.5rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow-lg);
  position: sticky;
  bottom: 1.5rem;
  z-index: 50;
}

.action-process-left {
  display: flex;
  flex-direction: column;
}

.action-summary-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-primary);
}

.action-summary-subtitle {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.btn-process-main {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  color: white;
  font-size: 1.15rem;
  font-weight: 800;
  padding: 1rem 2.5rem;
  border-radius: var(--radius-full);
  box-shadow: 0 4px 18px rgba(16, 185, 129, 0.4);
  transition: all var(--transition-fast);
}

.btn-process-main:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(16, 185, 129, 0.5);
}

.btn-process-main:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Modal / Success Download Dialog */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(6px);
  display: none;
  place-items: center;
  z-index: 1000;
  padding: 1.5rem;
  animation: fadeIn 0.2s ease;
}

.modal-overlay.active {
  display: grid;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 3rem 2.5rem;
  max-width: 520px;
  width: 100%;
  text-align: center;
  box-shadow: var(--shadow-xl);
  position: relative;
  animation: scaleUp 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes scaleUp {
  from { transform: scale(0.9); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.success-icon-bubble {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: rgba(16, 185, 129, 0.15);
  color: var(--success);
  display: grid;
  place-items: center;
  font-size: 2.5rem;
  margin: 0 auto 1.5rem;
}

.modal-title {
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
}

.modal-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.modal-actions {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.btn-download-big {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
  color: white;
  font-size: 1.15rem;
  font-weight: 700;
  padding: 1.05rem 2rem;
  border-radius: var(--radius-full);
  box-shadow: 0 4px 18px var(--primary-glow);
  transition: all var(--transition-fast);
}

.btn-download-big:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px var(--primary-glow);
}

/* Spinner */
.spinner {
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: white;
  animation: spin 0.8s linear infinite;
}

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

/* ==========================================================================
   Enhanced Step-by-Step "How-To" Section & Bento Trust Features
   ========================================================================== */
.tool-info-section {
  max-width: 1100px;
  margin: 5rem auto 0;
  padding: 4.5rem 1.5rem 2rem;
  border-top: 1px solid var(--border-color);
  position: relative;
}

.how-to-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 3rem;
}

.how-to-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  background: var(--primary-light);
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 1rem;
  border: 1px solid rgba(99, 102, 241, 0.2);
}

.how-to-title {
  font-size: 2.15rem;
  font-weight: 800;
  line-height: 1.25;
  color: var(--text-primary);
  margin-bottom: 0.85rem;
  letter-spacing: -0.02em;
}

.how-to-title .gradient-text {
  background: linear-gradient(135deg, #6366f1 0%, #06b6d4 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.how-to-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.how-to-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.75rem;
  margin: 2rem 0 3.5rem;
  position: relative;
}

.step-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 2.25rem 2rem 2rem;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  box-shadow: 0 4px 14px -3px rgba(0, 0, 0, 0.04);
}

.step-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--border-color), transparent);
  transition: all var(--transition-normal);
}

.step-card:hover {
  transform: translateY(-6px);
  border-color: rgba(99, 102, 241, 0.4);
  box-shadow: 0 20px 32px -10px rgba(99, 102, 241, 0.18);
}

.step-card:hover::before {
  background: linear-gradient(90deg, #6366f1, #06b6d4);
}

.step-watermark {
  position: absolute;
  top: 0.85rem;
  right: 1.25rem;
  font-size: 3.8rem;
  font-weight: 900;
  line-height: 1;
  color: var(--text-primary);
  opacity: 0.04;
  user-select: none;
  pointer-events: none;
  font-family: 'JetBrains Mono', monospace;
}

.step-top-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.35rem;
}

.step-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.8rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  background: var(--primary-light);
  color: var(--primary);
  letter-spacing: 0.05em;
}

.step-icon-wrap {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: grid;
  place-items: center;
  background: var(--bg-subtle);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  transition: all var(--transition-fast);
}

.step-card:hover .step-icon-wrap {
  background: var(--primary-light);
  color: var(--primary);
  border-color: rgba(99, 102, 241, 0.35);
  transform: scale(1.08);
}

.step-card h4 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.65rem;
  letter-spacing: -0.01em;
}

.step-card p {
  font-size: 0.94rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.step-footer-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
  padding-top: 0.85rem;
  border-top: 1px dashed var(--border-color);
}

/* ==========================================================================
   Section 4: Features & Trust Signals (Elevated Bento Grid)
   ========================================================================== */
.features-section {
  padding: 5.5rem 0;
  background: radial-gradient(ellipse 60% 50% at 50% 0%, rgba(99, 102, 241, 0.08) 0%, transparent 65%), var(--bg-subtle);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.feature-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 2.25rem 2rem;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-normal);
  box-shadow: 0 4px 14px -3px rgba(0, 0, 0, 0.04);
  display: flex;
  flex-direction: column;
}

.feature-box:hover {
  transform: translateY(-6px);
  border-color: rgba(99, 102, 241, 0.4);
  box-shadow: 0 20px 35px -10px rgba(0, 0, 0, 0.09);
}

.feature-box-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.35rem;
}

.feature-icon-wrapper {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  margin-bottom: 0;
  transition: all var(--transition-normal);
  position: relative;
}

.feature-box:hover .feature-icon-wrapper {
  transform: scale(1.08) rotate(3deg);
}

.feature-tag-chip {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.28rem 0.7rem;
  border-radius: var(--radius-full);
  background: var(--bg-subtle);
  color: var(--text-muted);
  border: 1px solid var(--border-color);
}

.feature-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.65rem;
  letter-spacing: -0.01em;
}

.feature-desc {
  font-size: 0.94rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 0;
}

/* ==========================================================================
   Compress PDF Specific Styles
   ========================================================================== */
.compression-presets-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.preset-card {
  background: var(--bg-surface);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 1.6rem;
  cursor: pointer;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  position: relative;
  user-select: none;
}

.preset-card:hover {
  border-color: rgba(236, 72, 153, 0.4);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.preset-card.active {
  border-color: #ec4899;
  background: rgba(236, 72, 153, 0.03);
  box-shadow: 0 0 0 3px rgba(236, 72, 153, 0.15), var(--shadow-lg);
}

.preset-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.preset-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: rgba(236, 72, 153, 0.1);
  color: #ec4899;
  display: grid;
  place-items: center;
  font-size: 1.3rem;
}

.preset-badge-tag {
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  background: var(--bg-subtle);
  color: var(--text-muted);
}

.preset-card.active .preset-badge-tag {
  background: #ec4899;
  color: white;
}

.preset-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
}

.preset-desc {
  font-size: 0.86rem;
  color: var(--text-secondary);
  line-height: 1.45;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.preset-details-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.85rem;
  border-top: 1px solid var(--border-color);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
}

.preset-savings-estimate {
  color: #10b981;
  font-weight: 800;
}

/* Compression Progress Bar */
.compression-progress-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 2rem;
  margin-bottom: 2rem;
  text-align: center;
}

.progress-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.85rem;
  font-size: 0.95rem;
  font-weight: 700;
}

.progress-track {
  width: 100%;
  height: 12px;
  background: var(--bg-subtle);
  border-radius: var(--radius-full);
  overflow: hidden;
  border: 1px solid var(--border-color);
  margin-bottom: 0.75rem;
}

.progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #ec4899, #f43f5e);
  border-radius: var(--radius-full);
  transition: width 0.25s ease;
}

.progress-status-sub {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Before & After Modal Comparison */
.comparison-stats-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 1rem;
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  margin: 1.5rem 0;
}

.stat-box {
  text-align: center;
}

.stat-box-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  margin-bottom: 0.25rem;
}

.stat-box-val {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-primary);
}

.stat-box-val.highlight {
  color: #10b981;
}

.comparison-arrow {
  color: var(--text-muted);
  font-size: 1.25rem;
}

.savings-highlight-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(16, 185, 129, 0.12);
  color: #10b981;
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.95rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
}

/* Range Slider Styling */
.pro-slider-wrap {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.pro-slider-label-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  font-weight: 700;
}

.pro-slider-value {
  color: #ec4899;
}

.pro-range-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  background: var(--bg-subtle);
  border-radius: 4px;
  outline: none;
}

.pro-range-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #ec4899;
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(236, 72, 153, 0.4);
  transition: transform 0.15s ease;
}

.pro-range-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

/* ==========================================================================
   Rotate PDF Specific Styles
   ========================================================================== */
.bulk-rotate-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 0.85rem 1.25rem;
  margin-bottom: 1.75rem;
}

.bulk-rotate-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.btn-rotate-bulk {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.5rem 1rem;
  font-size: 0.86rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.btn-rotate-bulk:hover {
  background: rgba(245, 158, 11, 0.12);
  color: #f59e0b;
  border-color: #f59e0b;
}

.btn-rotate-bulk.primary-rotate {
  background: #f59e0b;
  color: white;
  border-color: #f59e0b;
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
}

.btn-rotate-bulk.primary-rotate:hover {
  background: #d97706;
}

.rotate-pages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2.5rem;
}

.rotate-page-card {
  background: var(--bg-surface);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 0.75rem;
  position: relative;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-fast);
  overflow: hidden;
}

.rotate-page-card:hover {
  border-color: rgba(245, 158, 11, 0.5);
  box-shadow: var(--shadow-md);
}

.rotate-page-card.modified {
  border-color: #f59e0b;
  box-shadow: 0 0 0 2px rgba(245, 158, 11, 0.2);
}

.rotate-card-top-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
  z-index: 2;
}

.page-angle-badge {
  font-size: 0.72rem;
  font-weight: 800;
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-sm);
  background: var(--bg-subtle);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.rotate-page-card.modified .page-angle-badge {
  background: #f59e0b;
  color: white;
  border-color: #f59e0b;
}

.rotate-canvas-container {
  width: 100%;
  aspect-ratio: 1 / 1.35;
  background: var(--bg-subtle);
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  overflow: hidden;
  border: 1px solid var(--border-color);
  position: relative;
}

.rotate-canvas-animator {
  width: 100%;
  height: 100%;
  display: grid;
  place-items: center;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.rotate-canvas-animator canvas {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.card-rotate-footer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.btn-rotate-ctrl {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-rotate-ctrl:hover {
  background: #f59e0b;
  color: white;
  border-color: #f59e0b;
  transform: scale(1.08);
}

/* ==========================================================================
   Images to PDF Specific Styles
   ========================================================================== */
.image-layout-settings-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.25rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 1.25rem 1.5rem;
  margin-bottom: 2rem;
}

.layout-setting-item {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.layout-setting-label {
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

.pill-selector-group {
  display: inline-flex;
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  padding: 0.25rem;
  gap: 0.25rem;
}

.pill-selector-btn {
  padding: 0.4rem 0.95rem;
  font-size: 0.84rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  border: none;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.pill-selector-btn:hover {
  color: var(--text-primary);
}

.pill-selector-btn.active {
  background: #10b981;
  color: white;
  box-shadow: 0 2px 8px rgba(16, 185, 129, 0.3);
}

.images-sortable-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(185px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2.5rem;
}

.image-file-card {
  background: var(--bg-surface);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 0.75rem;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all var(--transition-fast);
  user-select: none;
}

.image-file-card:hover {
  border-color: rgba(16, 185, 129, 0.5);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.image-card-top-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.image-order-tag {
  font-size: 0.72rem;
  font-weight: 800;
  background: rgba(16, 185, 129, 0.12);
  color: #10b981;
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-sm);
}

.image-canvas-box {
  width: 100%;
  aspect-ratio: 1 / 1.35;
  background: var(--bg-subtle);
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.image-canvas-box img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  transition: transform 0.25s ease;
}

.image-card-meta {
  margin-top: 0.6rem;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.image-card-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 0.6rem;
  padding-top: 0.6rem;
  border-top: 1px solid var(--border-color);
}

.btn-img-action {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-img-action:hover {
  background: rgba(16, 185, 129, 0.12);
  color: #10b981;
  border-color: #10b981;
}

.btn-img-action.danger:hover {
  background: rgba(239, 68, 68, 0.12);
  color: #ef4444;
  border-color: #ef4444;
}

/* ==========================================================================
   PDF to Image Specific Styles
   ========================================================================== */
.pill-selector-btn.purple-active.active {
  background: #8b5cf6;
  color: white;
  box-shadow: 0 2px 8px rgba(139, 92, 246, 0.35);
}

.pdf-image-page-card {
  background: var(--bg-surface);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 0.75rem;
  position: relative;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
  user-select: none;
}

.pdf-image-page-card:hover {
  transform: translateY(-3px);
  border-color: rgba(139, 92, 246, 0.5);
  box-shadow: var(--shadow-md);
}

.pdf-image-page-card.selected {
  border-color: #8b5cf6;
  background: rgba(139, 92, 246, 0.04);
  box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.15), var(--shadow-lg);
}

.pdf-image-page-card .page-select-checkbox {
  position: absolute;
  top: 0.65rem;
  right: 0.65rem;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--bg-surface);
  border: 1.5px solid var(--border-color);
  display: grid;
  place-items: center;
  color: transparent;
  transition: all var(--transition-fast);
  z-index: 2;
  box-shadow: var(--shadow-sm);
}

.pdf-image-page-card.selected .page-select-checkbox {
  background: #8b5cf6;
  border-color: #8b5cf6;
  color: white;
}

/* ==========================================================================
   Delete PDF Pages Specific Styles
   ========================================================================== */
.delete-page-card {
  background: var(--bg-surface);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 0.75rem;
  position: relative;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
  user-select: none;
}

.delete-page-card:hover {
  transform: translateY(-3px);
  border-color: rgba(239, 68, 68, 0.5);
  box-shadow: var(--shadow-md);
}

.delete-page-card.to-delete {
  border-color: #ef4444;
  background: rgba(239, 68, 68, 0.05);
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15), var(--shadow-md);
}

.delete-page-card.to-delete .page-canvas-wrapper {
  opacity: 0.45;
  filter: grayscale(40%);
}

.delete-action-badge {
  position: absolute;
  top: 0.65rem;
  right: 0.65rem;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--bg-surface);
  border: 1.5px solid var(--border-color);
  display: grid;
  place-items: center;
  color: var(--text-muted);
  transition: all var(--transition-fast);
  z-index: 2;
  box-shadow: var(--shadow-sm);
}

.delete-page-card.to-delete .delete-action-badge {
  background: #ef4444;
  border-color: #ef4444;
  color: white;
  transform: scale(1.1);
}

.delete-page-card.to-delete .page-number-tag {
  background: #ef4444;
  text-decoration: line-through;
}

/* ==========================================================================
   Protect PDF Specific Styles
   ========================================================================== */
.protect-document-summary {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 1.25rem 1.5rem;
  margin-bottom: 2rem;
  box-shadow: var(--shadow-sm);
}

.protect-thumb-box {
  width: 90px;
  height: 120px;
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: var(--shadow-sm);
}

.protect-thumb-box canvas {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.protect-doc-meta {
  flex: 1;
}

.protect-doc-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
  word-break: break-all;
}

.protect-doc-details {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.protect-doc-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 700;
  background: rgba(16, 185, 129, 0.12);
  color: #10b981;
}

/* Password Form Block */
.protect-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 2rem;
  margin-bottom: 2rem;
  box-shadow: var(--shadow-sm);
}

.protect-card-header {
  margin-bottom: 1.5rem;
}

.protect-card-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.35rem;
}

.protect-card-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 0;
}

.password-input-group {
  position: relative;
  display: flex;
  align-items: center;
  margin-bottom: 0.75rem;
}

.password-input-group .pro-input {
  width: 100%;
  padding-right: 3rem;
  font-size: 1rem;
  letter-spacing: 0.05em;
}

.btn-toggle-eye {
  position: absolute;
  right: 0.85rem;
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.35rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast);
}

.btn-toggle-eye:hover {
  color: var(--primary);
}

/* Password Strength Indicator */
.password-strength-box {
  margin-top: 0.65rem;
  margin-bottom: 1.5rem;
}

.strength-bar-track {
  height: 6px;
  width: 100%;
  background: var(--bg-subtle);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-bottom: 0.45rem;
}

.strength-bar-fill {
  height: 100%;
  width: 0%;
  border-radius: var(--radius-full);
  transition: width 0.3s ease, background-color 0.3s ease;
}

.strength-bar-fill.weak {
  width: 25%;
  background-color: #ef4444;
}

.strength-bar-fill.medium {
  width: 60%;
  background-color: #f59e0b;
}

.strength-bar-fill.strong {
  width: 100%;
  background-color: #10b981;
}

.strength-meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  font-weight: 600;
}

.strength-text {
  color: var(--text-muted);
}

.strength-text.weak { color: #ef4444; }
.strength-text.medium { color: #f59e0b; }
.strength-text.strong { color: #10b981; }

.match-feedback {
  font-size: 0.82rem;
  font-weight: 600;
  margin-top: 0.35rem;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.match-feedback.matched {
  color: #10b981;
}

.match-feedback.mismatched {
  color: #ef4444;
}

/* Permissions Grid */
.permissions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.permission-toggle-item {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1rem 1.15rem;
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.permission-toggle-item:hover {
  border-color: #10b981;
  background: var(--bg-surface);
}

.permission-checkbox {
  margin-top: 0.2rem;
  width: 18px;
  height: 18px;
  accent-color: #10b981;
  cursor: pointer;
}

.permission-info h6 {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.2rem;
}

.permission-info p {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0;
  line-height: 1.35;
}

/* ========================================================
   PDF to Text Extractor Workbench & Editor Styles
   ======================================================== */
.text-extractor-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  margin-bottom: 1.75rem;
  display: flex;
  flex-direction: column;
}

.text-box-toolbar {
  padding: 0.85rem 1.25rem;
  background: var(--bg-subtle);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.text-meta-stats {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  flex-wrap: wrap;
}

.text-stat-badge {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-secondary);
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  padding: 0.28rem 0.65rem;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.text-stat-badge strong {
  color: var(--text-primary);
}

.text-toolbar-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-tool-action {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 700;
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: all var(--transition-fast);
}

.btn-tool-action:hover {
  border-color: #0284c7;
  color: #0284c7;
  background: rgba(2, 132, 199, 0.08);
}

.btn-tool-action.primary {
  background: linear-gradient(135deg, #0284c7, #0369a1);
  color: white;
  border-color: transparent;
  box-shadow: 0 2px 8px rgba(2, 132, 199, 0.35);
}

.btn-tool-action.primary:hover {
  background: linear-gradient(135deg, #0369a1, #075985);
  box-shadow: 0 4px 12px rgba(2, 132, 199, 0.45);
}

/* In-text search box */
.text-search-wrapper {
  padding: 0.65rem 1.25rem;
  background: var(--bg-surface-elevated);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  animation: fadeIn 0.2s ease;
}

.text-search-input-box {
  position: relative;
  flex: 1;
  display: flex;
  align-items: center;
}

.text-search-input-box input {
  width: 100%;
  padding: 0.45rem 2.2rem 0.45rem 0.75rem;
  font-size: 0.85rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  color: var(--text-primary);
}

.search-matches-counter {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-muted);
  white-space: nowrap;
}

/* Extracted text edit/preview area */
.text-display-editor {
  width: 100%;
  min-height: 380px;
  max-height: 600px;
  padding: 1.25rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--text-primary);
  background: var(--bg-surface);
  border: none;
  resize: vertical;
  outline: none;
  white-space: pre-wrap;
  word-break: break-word;
  tab-size: 4;
}

.text-display-editor:focus {
  background: var(--bg-surface);
}

/* Export format dropdown button */
.export-dropdown-wrapper {
  position: relative;
  display: inline-block;
}

.export-menu-card {
  position: absolute;
  right: 0;
  bottom: calc(100% + 8px);
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 0.5rem;
  min-width: 200px;
  display: none;
  z-index: 100;
  animation: fadeIn 0.15s ease;
}

.export-menu-card.show {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.export-menu-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem 0.85rem;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--text-primary);
  background: transparent;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  text-align: left;
  transition: all var(--transition-fast);
}

.export-menu-item:hover {
  background: var(--bg-subtle);
  color: #0284c7;
}

.export-menu-item span.ext-badge {
  font-size: 0.72rem;
  font-weight: 800;
  background: rgba(2, 132, 199, 0.12);
  color: #0284c7;
  padding: 0.15rem 0.45rem;
  border-radius: var(--radius-sm);
  margin-left: auto;
}



/* ==========================================================================
   SECTION 7: EXAMPLE / BEFORE & AFTER
   ========================================================================== */
.section-example {
  padding: 5rem 0;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  position: relative;
}

.before-after-wrapper {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 2rem;
  align-items: center;
  margin-top: 2.5rem;
}

@media (max-width: 992px) {
  .before-after-wrapper {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}

.ba-col {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 2rem;
  position: relative;
  transition: all var(--transition-normal);
}

.ba-col:hover {
  border-color: var(--primary);
  box-shadow: 0 12px 28px -8px rgba(99, 102, 241, 0.14);
}

.ba-badge-top {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  margin-bottom: 1.25rem;
}

.ba-badge-before {
  background: rgba(239, 68, 68, 0.1);
  color: #ef4444;
  border: 1px solid rgba(239, 68, 68, 0.25);
}

.ba-badge-after {
  background: rgba(16, 185, 129, 0.12);
  color: #10b981;
  border: 1px solid rgba(16, 185, 129, 0.25);
}

.ba-doc-list {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.ba-doc-item {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.85rem 1rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
}

.ba-doc-item:hover {
  transform: translateX(4px);
}

.ba-doc-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  display: grid;
  place-items: center;
  flex-shrink: 0;
  background: rgba(239, 68, 68, 0.1);
  color: #ef4444;
}

.ba-doc-info {
  flex: 1;
  min-width: 0;
}

.ba-doc-title {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ba-doc-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.15rem;
}

.ba-connector {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  text-align: center;
  padding: 1rem 0;
}

.ba-connector-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, #6366f1, #06b6d4);
  color: #ffffff;
  display: grid;
  place-items: center;
  box-shadow: 0 8px 20px rgba(99, 102, 241, 0.35);
}

.ba-connector-pill {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-secondary);
  background: var(--bg-surface);
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-color);
  white-space: nowrap;
}

.ba-result-card {
  border: 2px solid rgba(16, 185, 129, 0.35);
  background: linear-gradient(180deg, rgba(16, 185, 129, 0.04) 0%, var(--bg-surface) 100%);
}

.ba-feature-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.25rem;
  padding-top: 1.25rem;
  border-top: 1px dashed var(--border-color);
}

.ba-tag {
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-surface);
  padding: 0.3rem 0.65rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

/* ==========================================================================
   SECTION 8: SUPPORTED FILES & COMPATIBILITY
   ========================================================================== */
.section-compatibility {
  padding: 5.5rem 0;
  background: var(--bg-subtle);
  position: relative;
}

.spec-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  margin-top: 2.75rem;
}

.spec-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-sm);
}

.spec-card:hover {
  transform: translateY(-5px);
  border-color: rgba(99, 102, 241, 0.4);
  box-shadow: 0 16px 30px -10px rgba(99, 102, 241, 0.15);
}

.spec-card-top {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.spec-icon-wrap {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-lg);
  display: grid;
  place-items: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.spec-card-title {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--text-primary);
  margin: 0;
}

.spec-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.spec-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.86rem;
  color: var(--text-secondary);
  line-height: 1.45;
}

.spec-check {
  color: #10b981;
  font-weight: 800;
  flex-shrink: 0;
  margin-top: 1px;
}

/* ==========================================================================
   SECTION 9: PRIVACY & FILE SECURITY
   ========================================================================== */
.section-security {
  padding: 5.5rem 0;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  position: relative;
}

.security-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.75rem;
  margin-top: 3rem;
}

.security-card {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 2.25rem 2rem;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: all var(--transition-normal);
}

.security-card:hover {
  transform: translateY(-5px);
  border-color: rgba(16, 185, 129, 0.4);
  box-shadow: 0 16px 32px -10px rgba(16, 185, 129, 0.16);
}

.security-card-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-xl);
  display: grid;
  place-items: center;
  font-size: 1.5rem;
}

.security-card-title {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--text-primary);
  margin: 0;
}

.security-card-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

.security-badges-bar {
  margin-top: 3.5rem;
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-2xl);
  padding: 1.5rem 2rem;
  display: flex;
  justify-content: space-around;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.sec-badge-item {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-primary);
}

.sec-badge-icon {
  color: #10b981;
  display: flex;
}

/* ==========================================================================
   SECTION 10: TRUST & RELIABILITY
   ========================================================================== */
.section-trust {
  padding: 5.5rem 0;
  background: radial-gradient(ellipse 70% 50% at 50% 0%, rgba(99, 102, 241, 0.08) 0%, transparent 70%), var(--bg-subtle);
  position: relative;
}

.trust-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  margin-top: 2.75rem;
}

.trust-stat-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 2rem 1.75rem;
  text-align: center;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-sm);
}

.trust-stat-box:hover {
  transform: translateY(-4px);
  border-color: rgba(99, 102, 241, 0.35);
  box-shadow: 0 16px 30px -10px rgba(99, 102, 241, 0.15);
}

.trust-stat-num {
  font-size: 2.75rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 0.5rem;
  background: linear-gradient(135deg, #6366f1, #06b6d4);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.trust-stat-label {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
}

.trust-stat-sub {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.trust-cert-bar {
  margin-top: 3rem;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.trust-cert-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1.25rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-secondary);
  box-shadow: var(--shadow-sm);
}

/* ==========================================================================
   SECTION 12: REAL-WORLD USE CASES
   ========================================================================== */
.section-use-cases {
  padding: 5.5rem 0;
  background: var(--bg-body);
  position: relative;
  border-top: 1px solid var(--border-color);
}

.use-cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.6rem;
  margin-top: 2.75rem;
}

.use-case-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 1.85rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1.25rem;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.use-case-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary) 0%, #0ea5e9 100%);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.use-case-card:hover {
  transform: translateY(-4px);
  border-color: rgba(99, 102, 241, 0.4);
  box-shadow: 0 16px 32px -8px rgba(99, 102, 241, 0.12);
}

.use-case-card:hover::before {
  opacity: 1;
}

.use-case-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.use-case-icon-box {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  display: grid;
  place-items: center;
  font-size: 1.35rem;
  flex-shrink: 0;
}

.use-case-badge {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  background: var(--bg-subtle);
  color: var(--text-muted);
  border: 1px solid var(--border-color);
}

.use-case-title {
  font-size: 1.12rem;
  font-weight: 800;
  color: var(--text-primary);
  margin: 0.5rem 0 0.4rem;
  line-height: 1.35;
}

.use-case-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

.use-case-benefit {
  padding-top: 1rem;
  border-top: 1px dashed var(--border-color);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.78rem;
  font-weight: 700;
  color: #10b981;
}

/* ==========================================================================
   SECTION 13: COMMON ISSUES & TROUBLESHOOTING
   ========================================================================== */
.section-troubleshooting {
  padding: 5.5rem 0;
  background: var(--bg-subtle);
  position: relative;
  border-top: 1px solid var(--border-color);
}

.troubleshoot-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 1.6rem;
  margin-top: 2.75rem;
}

.troubleshoot-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
}

.troubleshoot-card:hover {
  transform: translateY(-3px);
  border-color: rgba(99, 102, 241, 0.35);
  box-shadow: 0 14px 28px -6px rgba(0, 0, 0, 0.08);
}

.troubleshoot-issue-header {
  padding: 1.25rem 1.5rem;
  background: rgba(245, 158, 11, 0.05);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
}

.troubleshoot-issue-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(245, 158, 11, 0.15);
  color: #f59e0b;
  display: grid;
  place-items: center;
  font-size: 0.95rem;
  flex-shrink: 0;
  margin-top: 0.1rem;
}

.troubleshoot-issue-title {
  font-size: 0.98rem;
  font-weight: 800;
  color: var(--text-primary);
  margin: 0;
  line-height: 1.4;
}

.troubleshoot-issue-sub {
  font-size: 0.76rem;
  color: var(--text-muted);
  margin: 0.2rem 0 0;
}

.troubleshoot-solution-body {
  padding: 1.35rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  flex: 1;
}

.troubleshoot-step-label {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #10b981;
}

.troubleshoot-solution-text {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

.troubleshoot-solution-text a {
  color: var(--primary);
  font-weight: 700;
  text-decoration: none;
}

.troubleshoot-solution-text a:hover {
  text-decoration: underline;
}

.troubleshoot-pro-tip {
  margin-top: 2.5rem;
  background: var(--bg-surface);
  border: 1px solid rgba(99, 102, 241, 0.25);
  border-radius: var(--radius-xl);
  padding: 1.35rem 1.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  box-shadow: 0 4px 18px -4px rgba(99, 102, 241, 0.08);
}

.pro-tip-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.pro-tip-badge {
  background: rgba(99, 102, 241, 0.12);
  color: #6366f1;
  font-size: 0.76rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-shrink: 0;
}

.pro-tip-text {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin: 0;
}

@media (max-width: 768px) {
  .troubleshoot-pro-tip {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
}

/* ============================================================
   Section 6: Elevated Accordion FAQ Section
   ============================================================ */
.tool-faq-section {
  padding: 5rem 0 4.5rem;
  position: relative;
  border-top: 1px solid var(--border-color);
  background: var(--bg-body);
}

.faq-container {
  max-width: 920px;
  margin: 0 auto;
}

.faq-accordion-group {
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
  margin-top: 2.75rem;
}

.faq-item-card {
  background: var(--bg-surface);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: var(--shadow-sm);
}

.faq-item-card:hover {
  border-color: rgba(99, 102, 241, 0.35);
  box-shadow: 0 8px 24px -6px rgba(0, 0, 0, 0.08);
  transform: translateY(-1px);
}

.faq-item-card[open] {
  border-color: rgba(37, 99, 235, 0.45);
  box-shadow: 0 10px 30px -8px rgba(37, 99, 235, 0.12);
  background: linear-gradient(180deg, var(--bg-surface) 0%, var(--bg-subtle) 100%);
}

.faq-summary-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  padding: 1.35rem 1.6rem;
  cursor: pointer;
  user-select: none;
  list-style: none;
  transition: color 0.2s ease;
}

.faq-summary-btn::-webkit-details-marker {
  display: none;
}

.faq-summary-btn:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: -2px;
}

.faq-question-text {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.45;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.faq-q-badge {
  display: inline-grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: rgba(37, 99, 235, 0.1);
  color: #2563eb;
  font-size: 0.78rem;
  font-weight: 800;
  flex-shrink: 0;
}

.faq-chevron-wrap {
  display: inline-grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  flex-shrink: 0;
  transition: all 0.28s cubic-bezier(0.16, 1, 0.3, 1);
}

.faq-item-card:hover .faq-chevron-wrap {
  color: var(--text-primary);
  border-color: rgba(99, 102, 241, 0.3);
}

.faq-item-card[open] .faq-chevron-wrap {
  transform: rotate(180deg);
  background: rgba(37, 99, 235, 0.12);
  color: #2563eb;
  border-color: rgba(37, 99, 235, 0.3);
}

.faq-answer-body {
  padding: 0 1.6rem 1.4rem 3.8rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

.faq-answer-body p {
  margin: 0;
}

.faq-answer-body p + p {
  margin-top: 0.75rem;
}

@media (max-width: 640px) {
  .faq-summary-btn {
    padding: 1.15rem 1.25rem;
  }
  .faq-question-text {
    font-size: 0.98rem;
  }
  .faq-answer-body {
    padding: 0 1.25rem 1.25rem 1.25rem;
  }
}


/* ==========================================================================
   SECTION 7: RELATED TOOLS & NEXT-STEP WORKFLOW GRID
   ========================================================================== */
.tool-related-section {
  padding: 5rem 0 4.5rem;
  position: relative;
  border-top: 1px solid var(--border-color);
  background: var(--bg-surface);
}

.related-tools-container {
  max-width: 1200px;
  margin: 0 auto;
}

.related-tools-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2.75rem;
}

.related-tool-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-body);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 1.6rem;
  text-decoration: none;
  color: inherit;
  transition: all 0.28s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.related-tool-card:hover {
  transform: translateY(-4px);
  border-color: rgba(37, 99, 235, 0.4);
  box-shadow: 0 12px 30px -8px rgba(37, 99, 235, 0.15);
  background: var(--bg-surface);
}

.related-tool-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #2563eb, #6366f1);
  opacity: 0;
  transition: opacity 0.28s ease;
}

.related-tool-card:hover::before {
  opacity: 1;
}

.related-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.15rem;
}

.related-icon-wrap {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.25s ease;
}

.related-tool-card:hover .related-icon-wrap {
  transform: scale(1.08);
}

.related-category-pill {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.25rem 0.65rem;
  border-radius: 9999px;
  border: 1px solid;
}

.related-tool-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.related-tool-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.4rem;
  flex-grow: 1;
}

.related-card-action {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: #2563eb;
  margin-top: auto;
  transition: gap 0.2s ease;
}

.related-tool-card:hover .related-card-action {
  gap: 0.75rem;
}

.related-card-action svg {
  transition: transform 0.2s ease;
}

.related-tool-card:hover .related-card-action svg {
  transform: translateX(3px);
}

@media (max-width: 992px) {
  .related-tools-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .related-tools-grid {
    grid-template-columns: 1fr;
    gap: 1.15rem;
  }
  .related-tool-card {
    padding: 1.35rem;
  }
}


/* ==========================================================================
   SECTION 8: UNIFIED 2-COLUMN SPLIT WORKSPACE & MOBILE COLLAPSIBLE SIDEBAR
   ========================================================================== */
.tool-workspace-split,
.merge-split-workspace {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 1.75rem;
  align-items: start;
  margin-top: 1.5rem;
}

.tool-sidebar-panel,
.merge-sidebar-panel {
  position: sticky;
  top: 90px;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.tool-sidebar-card,
.merge-sidebar-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 1.35rem 1.25rem;
  box-shadow: 0 4px 18px -4px rgba(0, 0, 0, 0.05);
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
}

.sidebar-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.sidebar-title-group {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.sidebar-icon-pill {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-md);
  background: rgba(99, 102, 241, 0.12);
  display: grid;
  place-items: center;
  font-size: 1.05rem;
  flex-shrink: 0;
}

.sidebar-title {
  font-size: 1rem;
  font-weight: 800;
  color: var(--text-primary);
  margin: 0;
  letter-spacing: -0.01em;
}

.sidebar-subtitle {
  font-size: 0.76rem;
  color: var(--text-muted);
  display: block;
  margin-top: 0.1rem;
}

.sidebar-header-right {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.sidebar-badge {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-full);
  background: var(--bg-subtle);
  color: var(--text-muted);
  border: 1px solid var(--border-color);
}

.sidebar-options-list {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

/* Option Cards inside Sidebar */
.pro-feature-card {
  background: var(--bg-body);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 0.9rem 1rem;
  transition: all var(--transition-fast);
}

.pro-feature-card:hover {
  border-color: rgba(99, 102, 241, 0.35);
}

.feature-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.feature-title-wrap {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
}

.feature-title-wrap h5 {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
}

.feature-card-desc {
  font-size: 0.76rem;
  color: var(--text-secondary);
  margin: 0.15rem 0 0;
  line-height: 1.35;
}

.feature-icon-chip {
  width: 30px;
  height: 30px;
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  font-size: 0.95rem;
  flex-shrink: 0;
}

.feature-controls-area {
  padding-top: 0.75rem;
  margin-top: 0.75rem;
  border-top: 1px dashed var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.feature-input-row {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.feature-input-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.pro-select,
.pro-input {
  width: 100%;
  padding: 0.6rem 0.85rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-primary);
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  outline: none;
}

.pro-select:focus,
.pro-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.sidebar-action-box {
  padding-top: 1.15rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.sidebar-process-btn,
.sidebar-action-btn,
.sidebar-merge-btn {
  width: 100%;
  justify-content: center;
  padding: 0.95rem 1.4rem;
  font-size: 1rem;
  font-weight: 800;
  box-shadow: 0 4px 14px -2px rgba(99, 102, 241, 0.4);
  cursor: pointer;
}

.sidebar-privacy-note {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
  text-align: center;
}

/* Right Stage Panel */
.tool-stage-panel,
.merge-preview-stage {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  min-width: 0;
}

.stage-guide-banner {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 0.85rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.stage-guide-left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.stage-guide-icon {
  font-size: 1.35rem;
}

.stage-guide-title {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--text-primary);
  margin: 0;
}

.stage-guide-subtitle {
  font-size: 0.78rem;
  color: var(--text-secondary);
  margin: 0.15rem 0 0;
}

/* Desktop: Arrow hidden, collapsible body always open */
.sidebar-toggle-arrow {
  display: none;
}

.sidebar-collapsible-body {
  display: block;
}

/* Mobile Responsive: Collapsible by default with arrow */
@media (max-width: 1024px) {
  .tool-workspace-split,
  .merge-split-workspace {
    grid-template-columns: 1fr;
  }
  .tool-sidebar-panel,
  .merge-sidebar-panel {
    position: static;
    order: 2;
  }
  .tool-stage-panel,
  .merge-preview-stage {
    order: 1;
  }

  .sidebar-card-header {
    cursor: pointer;
    user-select: none;
    padding-bottom: 0.75rem;
  }

  .sidebar-header-right {
    display: flex;
    align-items: center;
    gap: 0.65rem;
  }

  .sidebar-toggle-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    background: var(--bg-subtle);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1), background 0.2s ease, color 0.2s ease;
  }

  .sidebar-toggle-arrow svg {
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  }

  /* BY DEFAULT HIDE ON MOBILE */
  .sidebar-collapsible-body {
    display: none !important;
    padding-top: 1rem;
    border-top: 1px dashed var(--border-color);
    animation: fadeIn 0.2s ease;
  }

  /* EXPANDED ON MOBILE */
  .tool-sidebar-card.is-expanded .sidebar-collapsible-body,
  .merge-sidebar-card.is-expanded .sidebar-collapsible-body {
    display: block !important;
  }

  .tool-sidebar-card.is-expanded .sidebar-toggle-arrow,
  .merge-sidebar-card.is-expanded .sidebar-toggle-arrow {
    background: var(--primary);
    border-color: var(--primary);
    color: #ffffff;
  }

  .tool-sidebar-card.is-expanded .sidebar-toggle-arrow svg,
  .merge-sidebar-card.is-expanded .sidebar-toggle-arrow svg {
    transform: rotate(180deg);
  }
}


/* ==========================================================================
   SECTION 16: FEEDBACK & REPORT A PROBLEM
   ========================================================================== */
.section-feedback {
  padding: 5.5rem 0;
  background: var(--bg-body);
  position: relative;
  border-top: 1px solid var(--border-color);
}

.feedback-card {
  max-width: 820px;
  margin: 2.75rem auto 0;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  box-shadow: 0 12px 36px -10px rgba(0, 0, 0, 0.06);
  position: relative;
  overflow: hidden;
}

.feedback-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #6366f1 0%, #0ea5e9 50%, #10b981 100%);
}

.feedback-rating-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.85rem;
  text-align: center;
  padding-bottom: 2rem;
  border-bottom: 1px dashed var(--border-color);
}

.feedback-rating-label {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
}

.feedback-stars-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.feedback-star-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.35rem;
  font-size: 1.75rem;
  color: #cbd5e1;
  transition: transform 0.15s ease, color 0.15s ease;
  line-height: 1;
}

.feedback-star-btn:hover,
.feedback-star-btn.is-active {
  color: #f59e0b;
  transform: scale(1.18);
}

.feedback-pills-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  justify-content: center;
  margin: 1.75rem 0 1.25rem;
}

.feedback-pill-btn {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  padding: 0.45rem 1rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.feedback-pill-btn:hover,
.feedback-pill-btn.is-selected {
  background: rgba(99, 102, 241, 0.1);
  color: #6366f1;
  border-color: rgba(99, 102, 241, 0.35);
}

.feedback-form-group {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 1rem;
}

.feedback-textarea {
  width: 100%;
  min-height: 110px;
  padding: 1rem 1.25rem;
  font-size: 0.92rem;
  font-family: inherit;
  color: var(--text-primary);
  background: var(--bg-body);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  resize: vertical;
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.feedback-textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.feedback-input-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1rem;
  align-items: center;
}

.feedback-email-input {
  width: 100%;
  padding: 0.75rem 1.15rem;
  font-size: 0.88rem;
  font-family: inherit;
  color: var(--text-primary);
  background: var(--bg-body);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  outline: none;
  transition: border-color var(--transition-fast);
}

.feedback-email-input:focus {
  border-color: var(--primary);
}

.feedback-submit-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  font-size: 0.92rem;
  font-weight: 700;
  color: #ffffff;
  background: linear-gradient(135deg, var(--primary) 0%, #4f46e5 100%);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  box-shadow: 0 4px 14px -2px rgba(99, 102, 241, 0.4);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.feedback-submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px -2px rgba(99, 102, 241, 0.5);
}

.feedback-disclaimer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 1rem;
  text-align: center;
}

.feedback-support-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-top: 2rem;
  font-size: 0.84rem;
  color: var(--text-secondary);
}

.feedback-support-links a {
  color: var(--primary);
  font-weight: 600;
  text-decoration: none;
}

.feedback-support-links a:hover {
  text-decoration: underline;
}

.feedback-alert-success {
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.35);
  border-radius: var(--radius-md);
  color: #059669;
  padding: 0.85rem 1.25rem;
  font-size: 0.88rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-top: 1rem;
  animation: fadeIn 0.25s ease;
}

@media (max-width: 640px) {
  .feedback-card {
    padding: 1.5rem;
  }
  .feedback-input-row {
    grid-template-columns: 1fr;
  }
  .feedback-submit-btn {
    width: 100%;
  }
}


/* ==========================================================================
   SECTION 11: DETAILED TOOL GUIDE & DEEP-DIVE
   ========================================================================== */
.section-detailed-guide {
  padding: 5.5rem 0;
  background: var(--bg-subtle);
  position: relative;
  border-top: 1px solid var(--border-color);
}

.guide-container {
  max-width: 920px;
  margin: 0 auto;
}

.guide-article-wrapper {
  margin-top: 2.75rem;
  display: flex;
  flex-direction: column;
  gap: 2.25rem;
}

.guide-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 2.25rem;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.guide-card:hover {
  border-color: rgba(99, 102, 241, 0.3);
  box-shadow: 0 10px 28px -6px rgba(0, 0, 0, 0.06);
}

.guide-card-header {
  display: flex;
  align-items: flex-start;
  gap: 1.15rem;
  margin-bottom: 1.35rem;
}

.guide-card-num {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  background: rgba(99, 102, 241, 0.12);
  color: #6366f1;
  font-size: 1.1rem;
  font-weight: 800;
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.guide-card-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-primary);
  margin: 0;
  line-height: 1.3;
}

.guide-card-subtitle {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 0.25rem 0 0;
}

.guide-card-body {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.guide-card-body p {
  margin: 0 0 1rem;
}

.guide-card-body p:last-child {
  margin-bottom: 0;
}

.guide-points-list {
  list-style: none;
  padding: 0;
  margin: 1.25rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.guide-points-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--text-secondary);
}

.guide-bullet-icon {
  color: var(--primary);
  font-weight: 800;
  flex-shrink: 0;
  margin-top: 0.1rem;
}

.guide-table-wrap {
  overflow-x: auto;
  margin: 1.25rem 0;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
}

.guide-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  text-align: left;
}

.guide-table th {
  background: var(--bg-body);
  padding: 0.85rem 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-color);
}

.guide-table td {
  padding: 0.85rem 1.15rem;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-color);
}

.guide-table tr:last-child td {
  border-bottom: none;
}

.guide-table tr:hover td {
  background: rgba(99, 102, 241, 0.02);
}

.guide-callout-box {
  background: rgba(99, 102, 241, 0.05);
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 1.15rem 1.35rem;
  margin: 1.25rem 0 0.5rem;
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.guide-callout-box strong {
  color: var(--text-primary);
}

.guide-callout-box a {
  color: var(--primary);
  font-weight: 600;
  text-decoration: underline;
}

@media (max-width: 640px) {
  .guide-card {
    padding: 1.5rem;
  }
  .guide-card-title {
    font-size: 1.15rem;
  }
}


/* ==========================================================================
   Accessibility & Mobile Touch Performance Optimizations
   ========================================================================== */

/* 1. Prefers-Reduced-Motion: Honoring User Accessibility Preferences */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* 2. High-Contrast Focus Visible Indicators (WCAG 2.1 AA Compliant) */
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
a:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid #2563eb !important;
  outline-offset: 2px !important;
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.25) !important;
}

/* 3. Mobile Touch Tap Targets & Hover Resiliency (No Hover Lockout on Touch) */
@media (hover: none) and (pointer: coarse) {
  .btn-upload-cta:hover,
  .btn-process-main:hover,
  .btn-secondary:hover,
  .split-mode-tab:hover {
    transform: none !important;
  }
}

/* 4. Responsive Tap Targets (Minimum 44px on Mobile & Small Breakpoints) */
@media (max-width: 768px) {
  .btn-upload-cta,
  .btn-process-main,
  .split-mode-tab,
  .quick-select-actions button,
  .sidebar-card-header {
    min-height: 44px;
    touch-action: manipulation;
  }

  .split-pages-grid {
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)) !important;
    gap: 0.75rem !important;
  }
}

@media (max-width: 375px) {
  .tool-main-title {
    font-size: 1.45rem !important;
  }

  .dropzone {
    padding: 2rem 1rem !important;
  }

  .split-pages-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 0.5rem !important;
  }
}


/* Core Capabilities Ribbon in Tool Header */
.top-capabilities-ribbon {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem 0.65rem;
  margin: 1.25rem auto 0;
  max-width: 860px;
}

.top-cap-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.35rem 0.75rem;
  background: var(--bg-card);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  box-shadow: 0 1px 3px rgba(0,0,0,0.03);
  transition: all 0.2s ease;
}

.top-cap-badge svg {
  color: #10b981;
  flex-shrink: 0;
}

.top-cap-badge:hover {
  border-color: rgba(99, 102, 241, 0.4);
  color: var(--text-primary);
  transform: translateY(-1px);
}

/* ==========================================================================
   UI/UX & CONVERSION IMPROVEMENTS (Issue 6)
   - Live Upload & Validation Card (VisionUI / Dribbble pattern)
   - Enhanced Workspace File Information Toolbar
   - Visual Selection Status Command Bar
   - Polished Thumbnail Selection Cards & Keyboard Focus Indicators
   - Sticky Mobile Split Bar & Touch Responsive Controls
   ========================================================================== */

/* 1. Live Upload & Validation Card */
.upload-processing-card {
  background: var(--bg-surface);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 2.25rem 2rem;
  max-width: 640px;
  margin: 0 auto;
  box-shadow: var(--shadow-lg);
  animation: scaleUp 0.25s ease-out;
}

.upload-card-header {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-bottom: 1.5rem;
  text-align: left;
}

.upload-file-icon {
  position: relative;
  width: 54px;
  height: 54px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.12), rgba(220, 38, 38, 0.06));
  color: #ef4444;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  border: 1px solid rgba(239, 68, 68, 0.2);
}

.upload-badge-pdf {
  position: absolute;
  bottom: -4px;
  right: -4px;
  background: #ef4444;
  color: #ffffff;
  font-size: 0.65rem;
  font-weight: 800;
  padding: 0.1rem 0.35rem;
  border-radius: var(--radius-xs);
  letter-spacing: 0.03em;
  box-shadow: 0 2px 4px rgba(239, 68, 68, 0.3);
}

.upload-file-meta {
  flex: 1;
  min-width: 0;
}

.upload-file-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 0.4rem;
}

.upload-file-details {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.upload-meta-pill {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  background: var(--bg-body);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.upload-meta-type {
  font-family: monospace;
  color: #6366f1;
  background: rgba(99, 102, 241, 0.08);
  border-color: rgba(99, 102, 241, 0.2);
}

.upload-meta-security {
  color: #10b981;
  background: rgba(16, 185, 129, 0.08);
  border-color: rgba(16, 185, 129, 0.2);
}

.upload-progress-section {
  background: var(--bg-body);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.15rem 1.25rem;
}

.upload-status-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
}

.upload-status-text {
  color: var(--text-primary);
}

.upload-status-pct {
  color: #2563eb;
  font-family: monospace;
}

.upload-progress-track {
  width: 100%;
  height: 8px;
  background: rgba(0, 0, 0, 0.07);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-bottom: 0.9rem;
}

.upload-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #2563eb, #6366f1);
  border-radius: var(--radius-full);
  transition: width 0.2s ease;
}

.upload-steps-indicator {
  display: flex;
  justify-content: space-between;
  gap: 0.4rem;
  margin-top: 0.25rem;
}

.step-chip {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
  background: var(--bg-surface);
  color: var(--text-muted);
  border: 1px solid var(--border-color);
  transition: all 0.2s ease;
}

.step-chip.active {
  color: #2563eb;
  background: rgba(37, 99, 235, 0.08);
  border-color: #2563eb;
  font-weight: 700;
}

.step-chip.completed {
  color: #10b981;
  background: rgba(16, 185, 129, 0.08);
  border-color: #10b981;
}

/* 2. Enhanced Workspace File Stats Toolbar */
.file-stats {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.file-icon-badge {
  font-size: 0.7rem;
  font-weight: 800;
  color: #ffffff;
  background: #ef4444;
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  letter-spacing: 0.05em;
  box-shadow: 0 2px 4px rgba(239, 68, 68, 0.25);
}

.file-info-group {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.file-name-chip {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  max-width: 320px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-meta-pills-row {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.file-meta-tag {
  font-size: 0.76rem;
  color: var(--text-secondary);
  font-weight: 600;
  background: var(--bg-body);
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.file-meta-tag.privacy-tag {
  color: #10b981;
  background: rgba(16, 185, 129, 0.06);
  border-color: rgba(16, 185, 129, 0.2);
}

/* 3. Visual Thumbnail Selection Command Bar */
.quick-select-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 0.85rem 1.15rem;
  margin-bottom: 1.25rem;
}

.selection-status-summary {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  flex-wrap: wrap;
}

.selection-counter-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  background: var(--bg-body);
  border: 1.5px solid var(--border-color);
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-full);
}

.selection-counter-badge .check-icon {
  color: #2563eb;
}

.selection-counter-badge strong {
  color: #2563eb;
  font-weight: 800;
}

.selection-kbd-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.selection-kbd-hint kbd {
  background: var(--bg-body);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 0.1rem 0.35rem;
  font-size: 0.72rem;
  font-family: inherit;
  color: var(--text-primary);
  box-shadow: 0 1px 1px rgba(0,0,0,0.06);
}

.quick-select-actions {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.btn-pill-filter {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: var(--bg-body);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-pill-filter:hover {
  background: var(--bg-card);
  border-color: #2563eb;
  color: #2563eb;
  transform: translateY(-1px);
}

/* 4. Enhanced Thumbnail Cards Visual State */
.split-page-card {
  position: relative;
  background: var(--bg-surface);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 0.65rem;
  cursor: pointer;
  transition: all 0.18s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  user-select: none;
  outline: none;
}

.split-page-card:hover {
  border-color: rgba(37, 99, 235, 0.45);
  transform: translateY(-3px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.08);
}

.split-page-card.selected {
  border-color: #2563eb !important;
  background: rgba(37, 99, 235, 0.04) !important;
  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.2), 0 8px 20px rgba(37, 99, 235, 0.12) !important;
}

.split-page-card.keyboard-focused {
  outline: 2px solid #2563eb !important;
  outline-offset: 3px !important;
}

.page-select-checkbox {
  position: absolute;
  top: 0.65rem;
  right: 0.65rem;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--bg-surface);
  border: 2px solid var(--border-color);
  display: grid;
  place-items: center;
  color: transparent;
  transition: all 0.15s ease;
  z-index: 2;
}

.split-page-card.selected .page-select-checkbox {
  background: #2563eb;
  border-color: #2563eb;
  color: #ffffff;
  transform: scale(1.08);
  box-shadow: 0 2px 6px rgba(37, 99, 235, 0.4);
}

/* 5. Mobile Sticky Split Bar */
.mobile-sticky-split-bar {
  display: none;
}

@media (max-width: 768px) {
  .mobile-sticky-split-bar {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-surface);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-top: 1px solid var(--border-color);
    padding: 0.75rem 1.25rem;
    align-items: center;
    justify-content: space-between;
    z-index: 99;
    box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.08);
    animation: slideUp 0.25s ease-out;
  }

  .mobile-sticky-info {
    display: flex;
    flex-direction: column;
  }

  .mobile-sticky-count {
    font-size: 0.9rem;
    font-weight: 800;
    color: var(--text-primary);
  }

  .mobile-sticky-mode {
    font-size: 0.72rem;
    color: var(--text-secondary);
  }

  .mobile-sticky-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    color: #ffffff;
    font-size: 0.95rem;
    font-weight: 700;
    padding: 0.65rem 1.35rem;
    border-radius: var(--radius-full);
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.35);
  }

  .split-pages-grid {
    grid-template-columns: repeat(auto-fill, minmax(110px, 1fr)) !important;
    gap: 0.65rem !important;
  }

  .page-select-checkbox {
    width: 28px;
    height: 28px;
  }

  /* Expand touch target hit-area to 44px */
  .page-select-checkbox::after {
    content: '';
    position: absolute;
    top: -8px;
    left: -8px;
    right: -8px;
    bottom: -8px;
  }

  .modal-card {
    padding: 2rem 1.25rem !important;
    max-width: 95vw !important;
    border-radius: var(--radius-lg) !important;
  }

  .modal-title {
    font-size: 1.35rem !important;
  }
}

@keyframes slideUp {
  from { transform: translateY(100%); }
  to { transform: translateY(0); }
}

/* HTML-to-PDF reliability and accessibility refinements */
.input-pane[hidden] {
  display: none !important;
}

#dropzone:focus-visible,
.mode-tab-btn:focus-visible,
.btn-vp:focus-visible,
#convertBtn:focus-visible,
#btnLoadUrl:focus-visible,
#btnSelectFiles:focus-visible,
.btn-advance-toggle:focus-visible {
  outline: 3px solid rgba(2, 132, 199, 0.45);
  outline-offset: 3px;
}

#previewIframe {
  display: block;
  max-width: 100%;
}

#workspaceWrapper[aria-busy="true"] {
  cursor: progress;
}

#convertBtn[disabled] {
  cursor: wait;
  opacity: 0.72;
  filter: saturate(0.75);
}

#modalOverlay[aria-hidden="true"] {
  visibility: hidden;
}

@media (max-width: 640px) {
  .input-mode-tabs {
    gap: 0.45rem;
  }

  .mode-tab-btn {
    flex: 1 1 auto;
    justify-content: center;
    padding: 0.7rem 0.85rem;
    font-size: 0.84rem;
  }

  .url-input-card,
  .code-editor-card {
    padding: 1.25rem 1rem;
  }

  .preview-iframe-viewport {
    padding: 0.75rem 0.35rem !important;
    min-height: 320px !important;
  }

  .preview-frame {
    height: 420px !important;
  }

  .viewport-control-group {
    flex-wrap: wrap;
  }
}

@media (prefers-reduced-motion: reduce) {
  .input-pane.active,
  .mode-tab-btn,
  .btn-fetch-url,
  .preview-frame {
    animation: none !important;
    transition: none !important;
  }
}