.pdf-preview-container,
.pdf-preview-wrapper {
  background: var(--card);
  border-radius: 12px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  overflow: hidden;
  margin: 20px 0;
}

.pdf-preview {
  width: 100%;
  display: flex;
  flex-direction: column;
}

/* Header */
.pdf-preview-header {
  background: var(--bg-elev);
  border-bottom: 1px solid var(--border);
  padding: 12px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.pdf-info h2 {
  margin: 0 0 4px 0;
  color: var(--text);
  font-size: 1.4em;
  font-weight: 600;
}

.pdf-details {
  color: var(--muted);
  font-size: 0.9em;
  display: flex;
  gap: 8px;
}

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

.pdf-action-btn {
  font-size: 0.85em;
  padding: 6px 12px;
  white-space: nowrap;
}

.pdf-controls {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.btn-icon {
  width: 36px;
  height: 36px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-icon:hover:not(:disabled) {
  background: var(--bg-elev);
  border-color: var(--brand);
}

.btn-icon:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-icon span {
  font-size: 16px;
  font-weight: 500;
  line-height: 1;
  font-family: system-ui, -apple-system, sans-serif;
}

/* Specific styling for zoom icons */
#zoom-out span,
#zoom-in span {
  font-size: 18px;
  font-weight: 300;
}

/* Better rotation icons */
#rotate-180 span {
  font-size: 14px;
}

/* Better navigation icons */
#prev-page span,
#next-page span {
  font-size: 14px;
  font-weight: bold;
}

.zoom-level {
  min-width: 50px;
  text-align: center;
  font-weight: 500;
  font-size: 0.9em;
  color: var(--muted);
}

.page-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-info {
  font-size: 0.9em;
  color: var(--muted);
  min-width: 60px;
  text-align: center;
}

/* Viewer */
.pdf-viewer {
  background: #f8f9fa;
  min-height: 250px;
  max-height: 50vh;
  overflow: auto;
  overflow-x: hidden;
  position: relative;
  display: block;
  padding: 16px;
}

@media (prefers-color-scheme: dark) {
  .pdf-viewer {
    background: #1a1a1a;
  }

  @media (max-width: 768px) {
    .pdf-viewer,
    .tool-interface .pdf-preview .pdf-viewer {
      background: #1a1a1a;
    }
  }
}

.canvas-container {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  min-height: 300px;
  padding: 20px 0 0;
  width: 100%;
}

.pdf-canvas {
  display: block;
  /* Allow zoom > 100% by not constraining max size; dimensions set via JS */
  max-width: none;
  max-height: none;
  width: auto;
  height: auto;
  border: 1px solid var(--border);
  border-radius: 4px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  background: white;
}

.loading-spinner {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  background: rgba(255, 255, 255, 0.95);
  padding: 24px;
  border-radius: 8px;
  box-shadow: var(--shadow);
  z-index: 10;
}

.loading-spinner span {
  color: var(--text);
  font-size: 0.9em;
}

/* Actions */
.pdf-actions {
  padding: 16px;
  background: var(--bg);
}

.pdf-actions h4 {
  margin: 0 0 12px 0;
  color: var(--text);
  font-size: 1.1em;
  font-weight: 600;
  text-align: center;
}

.preview-note {
  color: var(--muted);
  font-size: 0.95em;
  line-height: 1.5;
  text-align: center;
  margin: 0 0 12px 0;
  padding: 0 20px;
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.tool-btn {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
  overflow: hidden;
}

.tool-btn:hover {
  border-color: var(--brand);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.tool-btn.selected {
  border-color: var(--brand);
  background: color-mix(in srgb, var(--brand) 8%, var(--card));
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--brand) 20%, transparent);
}

.tool-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.tool-btn:disabled:hover {
  transform: none;
  box-shadow: none;
}

.tool-icon {
  font-size: 1.5em;
  margin-bottom: 8px;
}

.tool-name {
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
  font-size: 0.95em;
}

.tool-desc {
  color: var(--muted);
  font-size: 0.85em;
  line-height: 1.3;
}

.preview-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* File list improvements */
.files-list {
  margin: 16px 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.file-preview {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--bg-elev);
  border-radius: 8px;
  border: 1px solid var(--border);
}

.file-icon {
  font-size: 1.2em;
  width: 24px;
  text-align: center;
}

.file-name {
  flex: 1;
  font-weight: 500;
  color: var(--text);
  word-break: break-word;
}

.file-size {
  color: var(--muted);
  font-size: 0.9em;
  white-space: nowrap;
}

/* Mobile layout - context-specific approach */
@media (max-width: 768px) {

  /* Allow controls to wrap on mobile for better visibility */
  .tool-interface .pdf-controls,
  .pdf-preview-wrapper .pdf-controls,
  .pdf-controls {
    flex-wrap: wrap !important;
  }

  /* TOOL PAGES - Override base styles with higher specificity */
  .tool-interface .pdf-preview-wrapper,
  .pdf-preview-wrapper {
    /* Remove container nesting - direct layout */
    max-height: calc(100vh - 20px) !important;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    background: transparent !important;
    border: none !important;
    border-radius: 0 !important;
    padding: 0 !important;
    margin: 0 !important;
    box-shadow: none !important;
  }

  .tool-interface .pdf-preview,
  .pdf-preview-wrapper .pdf-preview {
    display: flex;
    flex-direction: column;
    height: auto;
    max-height: calc(100vh - 60px);
    overflow: hidden;
    background: transparent !important;
    border: none !important;
    border-radius: 0 !important;
    padding: 0 !important;
    margin: 0 !important;
    /* Single layer - no visual nesting */
  }

  .tool-interface .pdf-preview-header,
  .pdf-preview-wrapper .pdf-preview-header {
    flex-shrink: 0;
    flex-direction: column;
    align-items: stretch;
    text-align: center;
    padding: 8px 0;
    background: transparent !important;
    border: none !important;
    border-bottom: 1px solid var(--border);
  }

  .tool-interface .pdf-header-actions,
  .pdf-preview-wrapper .pdf-header-actions {
    order: -1; /* Move action buttons to top */
    display: flex;
    justify-content: center;
    gap: 0;
    margin-bottom: 8px;
    flex-wrap: nowrap;
    width: 100%;
    max-width: 100vw;
    padding: 0 8px;
  }

  .tool-interface .pdf-action-btn,
  .pdf-preview-wrapper .pdf-action-btn {
    font-size: 0.8em;
    padding: 10px 8px;
    flex: 1;
    min-width: 0;
    text-overflow: ellipsis;
    overflow: hidden;
    white-space: nowrap;
    min-height: 44px;
    border-radius: 0;
    border-right: 1px solid var(--border);
  }

  .tool-interface .pdf-action-btn:first-child,
  .pdf-preview-wrapper .pdf-action-btn:first-child {
    border-radius: 8px 0 0 8px;
  }

  .tool-interface .pdf-action-btn:last-child,
  .pdf-preview-wrapper .pdf-action-btn:last-child {
    border-radius: 0 8px 8px 0;
    border-right: none;
  }

  .tool-interface .pdf-controls,
  .pdf-preview-wrapper .pdf-controls {
    display: flex !important;
    justify-content: center;
    align-items: center;
    gap: 10px;
    background: var(--bg-elev) !important;
    border-radius: 12px !important;
    padding: 14px 10px;
    margin: 12px 8px;
    flex-wrap: wrap !important;
    flex-direction: row !important;
    width: calc(100% - 16px);
    max-width: 100vw;
  }

  /* Force zoom controls to stay inline with specific targeting */
  .tool-interface .pdf-controls #zoom-out,
  .tool-interface .pdf-controls .zoom-level,
  .tool-interface .pdf-controls #zoom-in,
  .pdf-preview-wrapper .pdf-controls #zoom-out,
  .pdf-preview-wrapper .pdf-controls .zoom-level,
  .pdf-preview-wrapper .pdf-controls #zoom-in {
    flex-shrink: 0 !important;
    display: inline-flex !important;
    white-space: nowrap !important;
  }

  /* Zoom controls should group together as a unit */
  .tool-interface .pdf-controls #zoom-out + .zoom-level + #zoom-in,
  .pdf-preview-wrapper .pdf-controls #zoom-out + .zoom-level + #zoom-in {
    margin-left: 0 !important;
  }

  /* Group zoom controls together */
  .tool-interface .pdf-controls #zoom-out,
  .tool-interface .pdf-controls .zoom-level,
  .tool-interface .pdf-controls #zoom-in,
  .pdf-preview-wrapper .pdf-controls #zoom-out,
  .pdf-preview-wrapper .pdf-controls .zoom-level,
  .pdf-preview-wrapper .pdf-controls #zoom-in {
    order: 1;
  }

  .tool-interface .pdf-controls .zoom-level,
  .pdf-preview-wrapper .pdf-controls .zoom-level {
    min-width: 40px;
    text-align: center;
    flex-shrink: 0 !important;
    display: inline-block !important;
    font-size: 0.8em;
    padding: 0 4px;
    font-weight: 600;
  }

  /* Group page navigation together */
  .tool-interface .pdf-controls .page-nav,
  .pdf-preview-wrapper .pdf-controls .page-nav {
    display: flex !important;
    align-items: center;
    gap: 3px;
    flex-shrink: 0 !important;
    order: 3;
  }

  .tool-interface .pdf-controls .page-info,
  .pdf-preview-wrapper .pdf-controls .page-info {
    min-width: 50px;
    text-align: center;
    font-size: 0.75em;
    flex-shrink: 0 !important;
    padding: 0 4px;
    font-weight: 500;
  }

  /* Group rotation controls together */
  .tool-interface .pdf-controls .rotation-controls,
  .pdf-preview-wrapper .pdf-controls .rotation-controls {
    display: flex !important;
    align-items: center;
    gap: 3px;
    flex-shrink: 0 !important;
    order: 2;
  }

  /* Other controls order */
  .tool-interface .pdf-controls select,
  .pdf-preview-wrapper .pdf-controls select {
    order: 4;
  }

  /* Make dropdown more compact */
  .tool-interface .pdf-controls select,
  .pdf-preview-wrapper .pdf-controls select {
    font-size: 0.7em !important;
    padding: 3px 6px !important;
    min-width: 80px;
    max-width: 90px;
  }

  /* Show all controls - ensure nothing is hidden */
  .tool-interface .pdf-controls > *,
  .pdf-preview-wrapper .pdf-controls > * {
    display: flex !important;
    flex-shrink: 0 !important;
  }

  /* Hide bottom navigation when tool interface is active on mobile */
  .tool-interface:not(.hidden) ~ section.tools-grid {
    display: none !important;
  }

  /* Also hide if tool interface is visible (broader targeting) */
  body:has(.tool-interface:not(.hidden)) section#tools.tools-grid {
    display: none !important;
  }

  .tool-interface .btn-icon,
  .pdf-preview-wrapper .btn-icon {
    width: 40px;
    height: 40px;
    font-size: 0.9em;
    flex-shrink: 0;
    min-width: 40px;
    padding: 0;
    border-radius: 8px;
  }

  /* PDF viewer - single layer, full width */
  .tool-interface .pdf-viewer,
  .pdf-preview-wrapper .pdf-viewer {
    height: 45vh;
    max-height: 500px;
    min-height: 300px;
    padding: 12px 0;
    background: transparent !important;
    border-radius: 0 !important;
    border: none !important;
    overflow: auto;
    margin: 12px 0;
    flex-shrink: 0;
    width: 100%;
  }

  .tool-interface .canvas-container,
  .pdf-preview-wrapper .canvas-container {
    padding: 0;
    height: 100%;
    min-height: 300px;
    display: flex;
    justify-content: center;
    align-items: center;
  }

  .tool-interface .pdf-canvas,
  .pdf-preview-wrapper .pdf-canvas {
    max-width: calc(100vw - 32px);
    max-height: calc(45vh - 40px);
    width: auto;
    height: auto;
    object-fit: contain;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  }

  /* Actions section - streamlined, full width */
  .tool-interface .pdf-actions,
  .pdf-preview-wrapper .pdf-actions {
    flex-shrink: 0;
    padding: 8px 0;
    background: transparent !important;
    border-radius: 0 !important;
    border: none !important;
    border-top: 1px solid var(--border);
    margin-top: auto;
    max-height: 35vh;
    overflow-y: auto;
    width: 100%;
  }

  .tool-interface .pdf-actions h4,
  .pdf-preview-wrapper .pdf-actions h4 {
    margin: 0 0 8px 0;
    font-size: 0.9em;
    text-align: center;
  }

  .tool-interface .tool-grid,
  .pdf-preview-wrapper .tool-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 8px;
  }

  .tool-interface .tool-btn,
  .pdf-preview-wrapper .tool-btn {
    flex: 1;
    min-width: calc(50% - 3px);
    padding: 12px 10px;
    display: flex;
    align-items: center;
    gap: 8px;
    text-align: left;
    min-height: 50px;
  }

  .tool-interface .tool-icon,
  .pdf-preview-wrapper .tool-icon {
    font-size: 1.3em;
    margin: 0;
    flex-shrink: 0;
  }

  .tool-interface .tool-name,
  .pdf-preview-wrapper .tool-name {
    font-size: 0.85em;
    margin: 0;
    line-height: 1.3;
    font-weight: 600;
  }

  .tool-interface .tool-desc,
  .pdf-preview-wrapper .tool-desc {
    display: none; /* Hide descriptions for compactness */
  }

  .tool-interface .preview-actions,
  .pdf-preview-wrapper .preview-actions {
    flex-direction: column;
    gap: 6px;
    margin-top: 8px;
  }

  .tool-interface .preview-actions .btn,
  .pdf-preview-wrapper .preview-actions .btn {
    width: 100%;
    justify-content: center;
    padding: 8px 12px;
    font-size: 0.85em;
  }

  /* HOME PAGE MODAL - Simplified approach */
  .pdf-preview-container .pdf-preview {
    display: flex;
    flex-direction: column;
    height: 85vh;
  }

  .pdf-preview-container .pdf-preview-header {
    flex-shrink: 0;
    flex-direction: column;
    align-items: stretch;
    text-align: center;
    padding: 16px;
  }

  .pdf-preview-container .pdf-controls {
    justify-content: center;
    flex-wrap: wrap;
    padding: 12px;
    background: var(--bg-elev);
    border-radius: 8px;
    margin: 8px 0;
  }

  .pdf-preview-container .pdf-viewer {
    flex: 1;
    min-height: 300px;
    padding: 12px;
    background: #f8f9fa;
    border-radius: 8px;
    overflow: auto;
  }

  .pdf-preview-container .canvas-container {
    padding: 0;
    height: 100%;
    min-height: 250px;
    display: flex;
    justify-content: center;
    align-items: center;
  }

  .pdf-preview-container .pdf-canvas {
    max-width: calc(100vw - 60px);
    max-height: calc(60vh - 60px);
    width: auto;
    height: auto;
    object-fit: contain;
  }

  .pdf-preview-container .pdf-actions {
    flex-shrink: 0;
    padding: 16px;
    background: var(--card);
    border-radius: 12px;
    border: 1px solid var(--border);
  }

  .pdf-preview-container .tool-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .pdf-preview-container .preview-actions {
    flex-direction: column;
    gap: 8px;
  }

  .pdf-preview-container .preview-actions .btn {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  /* More compact for very narrow screens but still readable */
  .tool-interface .pdf-action-btn,
  .pdf-preview-wrapper .pdf-action-btn {
    font-size: 0.65em;
    padding: 3px 6px;
  }

  .tool-interface .btn-icon,
  .pdf-preview-wrapper .btn-icon {
    width: 24px;
    height: 24px;
    font-size: 0.75em;
    min-width: 24px;
  }

  .tool-interface .pdf-controls,
  .pdf-preview-wrapper .pdf-controls {
    gap: 4px;
    padding: 6px 2px;
  }

  .tool-interface .pdf-controls .zoom-level,
  .pdf-preview-wrapper .pdf-controls .zoom-level {
    min-width: 30px;
    font-size: 0.65em;
  }

  .tool-interface .pdf-controls .page-info,
  .pdf-preview-wrapper .pdf-controls .page-info {
    min-width: 35px;
    font-size: 0.65em;
  }

  .tool-interface .pdf-controls select,
  .pdf-preview-wrapper .pdf-controls select {
    font-size: 0.65em !important;
    min-width: 70px;
    max-width: 80px;
  }

  /* Context-specific small mobile adjustments */
  .tool-interface .pdf-actions,
  .pdf-preview-wrapper .pdf-actions,
  .pdf-preview-container .pdf-actions {
    padding: 12px;
    margin-top: 16px;
  }

  .tool-interface .pdf-preview-header,
  .pdf-preview-wrapper .pdf-preview-header,
  .pdf-preview-container .pdf-preview-header {
    padding: 8px 4px;
  }

  .tool-interface .tool-btn,
  .pdf-preview-wrapper .tool-btn,
  .pdf-preview-container .tool-btn {
    padding: 12px;
  }

  .tool-interface .tool-icon,
  .pdf-preview-wrapper .tool-icon,
  .pdf-preview-container .tool-icon {
    font-size: 1.3em;
    margin-bottom: 6px;
  }

  .tool-interface .tool-name,
  .pdf-preview-wrapper .tool-name,
  .pdf-preview-container .tool-name {
    font-size: 0.9em;
  }

  .tool-interface .tool-desc,
  .pdf-preview-wrapper .tool-desc,
  .pdf-preview-container .tool-desc {
    font-size: 0.8em;
  }
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.pdf-preview {
  animation: fadeIn 0.3s ease;
}

.tool-btn {
  animation: fadeIn 0.3s ease;
}

.tool-btn:nth-child(1) { animation-delay: 0.05s; }
.tool-btn:nth-child(2) { animation-delay: 0.1s; }
.tool-btn:nth-child(3) { animation-delay: 0.15s; }
.tool-btn:nth-child(4) { animation-delay: 0.2s; }

/* Focus and accessibility */
.tool-btn:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
}

.btn-icon:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
}

/* High contrast mode */
@media (prefers-contrast: high) {
  .pdf-canvas {
    border-width: 2px;
  }
  
  .tool-btn.selected {
    border-width: 2px;
  }
  
  .tool-btn:hover {
    border-width: 2px;
  }
}

/* Print styles */
@media print {
  .pdf-preview-header,
  .pdf-actions {
    display: none;
  }

  .pdf-viewer {
    max-height: none;
    overflow: visible;
  }
}

/* Custom scrollbar styling */
.pdf-viewer::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

.pdf-viewer::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.05);
  border-radius: 4px;
}

.pdf-viewer::-webkit-scrollbar-thumb {
  background: rgba(0, 0, 0, 0.2);
  border-radius: 4px;
  transition: background-color 0.2s ease;
}

.pdf-viewer::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 0, 0, 0.3);
}

.pdf-viewer::-webkit-scrollbar-corner {
  background: rgba(0, 0, 0, 0.05);
}

/* Dark mode scrollbars */
@media (prefers-color-scheme: dark) {
  .pdf-viewer::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
  }

  .pdf-viewer::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
  }

  .pdf-viewer::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.3);
  }

  .pdf-viewer::-webkit-scrollbar-corner {
    background: rgba(255, 255, 255, 0.1);
  }
}

/* Firefox scrollbar styling */
.pdf-viewer {
  scrollbar-width: thin;
  scrollbar-color: rgba(0, 0, 0, 0.2) rgba(0, 0, 0, 0.05);
}

@media (prefers-color-scheme: dark) {
  .pdf-viewer {
    scrollbar-color: rgba(255, 255, 255, 0.2) rgba(255, 255, 255, 0.1);
  }
}