/* PDF Preview - Thumbnails, modal, and result container (startup_cms) */

/* Modal image alignment (shared with image preview) */
.pdf-preview-modal-body-inner {
  width: 100%;
  display: flex;
  justify-content: center;
}

/* PDF Preview Thumbnails */
.pdf-preview-container {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.5rem;
  flex-wrap: wrap;
}

.pdf-preview-thumbnail {
  position: relative;
  display: flex;
  flex-direction: column;
  width: calc(110px * var(--preview-scale, 1));
  min-height: calc(170px * var(--preview-scale, 1));
  border: 1px solid var(--border-color);
  border-radius: var(--radius-small);
  padding: 0.4rem;
  gap: 0.4rem;
  cursor: pointer;
  transition:
    border-color 0.2s ease,
    box-shadow 0.2s ease,
    transform 0.2s ease;
  background: var(--card-bg);
  flex-shrink: 0;
}

.pdf-preview-thumbnail:hover {
  border-color: var(--link);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.18);
}

.preview-card-header,
.preview-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.35rem;
  width: 100%;
}

.preview-card-actions {
  display: inline-flex;
  gap: 0.3rem;
}

.preview-card-actions-top {
  justify-content: flex-end;
}

.preview-card-actions-bottom {
  justify-content: flex-start;
  gap: 8px;
}

.preview-card-actions-bottom button {
  margin-right: 0 !important;
  padding: 0 !important;
}

.preview-card-actions-bottom button i {
  padding: 5px;
}

.preview-card-image {
  flex: 1;
  background: var(--input-bg);
  border-radius: var(--radius-small);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.preview-card-image img {
  width: 100%;
  height: auto;
  display: block;
  transform-origin: center;
  transition: transform 0.2s ease;
  transform: rotate(var(--preview-rotation, 0deg));
}

.pdf-preview-thumbnail .page-number {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--heading-color);
}

.preview-card-btn {
  border: none;
  background: var(--input-bg);
  color: var(--text-color);
  border-radius: var(--radius-small);
  width: 26px;
  height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition:
    background 0.2s ease,
    color 0.2s ease,
    transform 0.2s ease;
  font-size: 0.75rem;
}

.preview-card-btn:hover {
  background: var(--link);
  color: white;
  transform: translateY(-1px);
}

.preview-card-btn-danger {
  background: rgba(220, 53, 69, 0.12);
  color: #dc3545;
}

.preview-card-btn-danger:hover {
  background: #dc3545;
  color: white;
}

.preview-card-checkbox {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0.2rem;
  font-size: 0.7rem;
  color: var(--muted-text);
  cursor: pointer;
  width: 100%;
  padding: 0.15rem 0;
}

.preview-card-checkbox-input {
  width: 100%;
  height: 34px;
  margin: 0;
  accent-color: var(--link);
}

.preview-card-checkbox-label {
  text-align: center;
  font-size: 0.9rem;
}

.preview-card-header-centered {
  justify-content: center;
}

.preview-card-header-centered .page-number {
  width: 100%;
  text-align: center;
  font-size: 1.05rem;
}

.pdf-preview-thumbnail.marked-for-deletion {
  opacity: 0.85;
  border-color: #dc3545;
  background: rgba(220, 53, 69, 0.08);
}

.pdf-preview-thumbnail.marked-for-deletion img {
  filter: grayscale(100%);
}

.preview-card-selected {
  border-color: var(--link);
  box-shadow: 0 0 0 2px rgba(var(--link-rgb, 0, 123, 255), 0.15);
}

.preview-card-selected-success {
  border-color: #28a745;
  box-shadow: 0 0 0 2px rgba(40, 167, 69, 0.2);
  background: rgba(40, 167, 69, 0.05);
}

.preview-card-rotated .preview-card-image {
  background: rgba(var(--link-rgb, 0, 123, 255), 0.05);
}

.pdf-preview-thumbnail.draggable-thumbnail {
  cursor: move;
}

.pdf-preview-thumbnail.dragging {
  opacity: 0.5;
  transform: scale(0.95);
}

.pdf-preview-thumbnail.drag-over {
  border-color: var(--link);
  transform: scale(1.05);
  box-shadow: 0 0 10px rgba(var(--link-rgb), 0.5);
}

.draggable-preview-container {
  min-height: 120px;
}

/* Merge tool - page deleted state */
.pdf-preview-thumbnail.merge-page-deleted {
  opacity: 0.35;
  filter: grayscale(80%);
  position: relative;
}

.pdf-preview-thumbnail.merge-page-deleted::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 10%;
  right: 10%;
  height: 3px;
  background: #dc3545;
  transform: translateY(-50%) rotate(-5deg);
  border-radius: 2px;
  pointer-events: none;
}

/* Merge tool - drag target for REPLACEMENT */
.pdf-preview-thumbnail.merge-replace-target {
  border-color: #e83e8c;
  background: rgba(232, 62, 140, 0.15);
  transform: scale(1.05);
  box-shadow: 0 0 16px rgba(232, 62, 140, 0.5);
}

.pdf-preview-thumbnail.merge-replace-target::before {
  content: 'Replace';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: #e83e8c;
  color: white;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 4px;
  z-index: 20;
  pointer-events: none;
}

/* Merge tool - drag target for INSERT */
.pdf-preview-thumbnail.merge-insert-left {
  position: relative;
}

.pdf-preview-thumbnail.merge-insert-left::before {
  content: '';
  position: absolute;
  left: -6px;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--link);
  border-radius: 2px;
  z-index: 15;
  box-shadow: 0 0 8px var(--link);
}

.pdf-preview-thumbnail.merge-insert-right {
  position: relative;
}

.pdf-preview-thumbnail.merge-insert-right::before {
  content: '';
  position: absolute;
  right: -6px;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--link);
  border-radius: 2px;
  z-index: 15;
  box-shadow: 0 0 8px var(--link);
}

.pdf-preview-thumbnail.merge-page-dragging {
  opacity: 0.5;
  transform: scale(0.92);
  border-color: var(--link);
}

/* PDF Preview Modal */
.pdf-preview-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.85);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  opacity: 0;
  pointer-events: none;
  visibility: hidden;
  transition:
    opacity 0.2s ease,
    visibility 0.2s ease;
}

.pdf-preview-modal.active {
  opacity: 1;
  pointer-events: auto;
  visibility: visible;
}

.pdf-preview-modal-content {
  background: var(--card-bg, #fff);
  border-radius: 8px;
  width: 58%;
  max-width: 58vw;
  height: 90vh;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  overflow: hidden;
  margin: auto;
}

.pdf-preview-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.pdf-preview-modal-header h3 {
  margin: 0;
  color: var(--heading-color);
  font-size: 1.6rem;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.pdf-preview-modal-close {
  background: var(--input-bg);
  border: 1px solid var(--border-color);
  cursor: pointer;
  color: var(--text-color);
  padding: 0.5rem 0.75rem;
  border-radius: 4px;
  transition: all 0.2s;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  min-height: 36px;
}

.pdf-preview-modal-close:hover {
  background: var(--link);
  color: #fff;
  border-color: var(--link);
}

.pdf-preview-modal-nav-top {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 0.75rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}

.pdf-preview-nav-btn {
  background: var(--input-bg);
  border: 1px solid var(--border-color);
  color: var(--text-color);
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 4px;
  transition: all 0.2s;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.pdf-preview-nav-btn:hover:not(:disabled) {
  background: var(--link);
  color: #fff;
  border-color: var(--link);
}

.pdf-preview-nav-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.pdf-preview-modal-nav-top span {
  color: var(--text-color);
  font-size: 1.45rem;
  font-weight: 600;
  min-width: 80px;
  text-align: center;
}

.pdf-preview-modal-body {
  padding: 1.5rem;
  overflow-y: auto;
  overflow-x: auto;
  flex: 1;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  min-height: 0;
  max-height: 100%;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--border-color) transparent;
}

.pdf-preview-modal-body::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

.pdf-preview-modal-body::-webkit-scrollbar-track {
  background: transparent;
}

.pdf-preview-modal-body::-webkit-scrollbar-thumb {
  background-color: var(--border-color);
  border-radius: 4px;
}

.pdf-preview-modal-body::-webkit-scrollbar-thumb:hover {
  background-color: var(--muted-text);
}

.pdf-preview-modal-canvas {
  width: 100%;
  max-width: 100%;
  height: auto;
  display: block;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  margin: 0 auto;
}

.pdf-preview-modal-image {
  max-width: 100%;
  max-height: 100%;
  display: block;
  margin: 0 auto;
  border-radius: var(--radius-small);
}

/* Dark mode overrides */
body.theme-dark .pdf-preview-modal-content {
  background: var(--card-bg, #1b2230);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}

body.theme-dark .pdf-preview-modal-header {
  border-bottom-color: var(--border-color, #2a3444);
}

body.theme-dark .pdf-preview-modal-nav-top {
  border-bottom-color: var(--border-color, #2a3444);
}

body.theme-dark .pdf-preview-modal-canvas {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

body.theme-dark .pdf-preview-modal-body {
  scrollbar-color: #475569 rgba(15, 23, 42, 0.6);
}

body.theme-dark .pdf-preview-modal-body::-webkit-scrollbar-thumb {
  background-color: #475569;
}

body.theme-dark .pdf-preview-modal-body::-webkit-scrollbar-thumb:hover {
  background-color: #64748b;
}

body:not(.theme-dark) .pdf-preview-modal-body {
  scrollbar-color: #94a3b8 rgba(226, 232, 240, 0.7);
}

body:not(.theme-dark) .pdf-preview-modal-body::-webkit-scrollbar-thumb {
  background-color: #94a3b8;
}

body:not(.theme-dark) .pdf-preview-modal-body::-webkit-scrollbar-thumb:hover {
  background-color: #64748b;
}

body:not(.theme-dark) .pdf-preview-modal {
  background: rgba(15, 23, 42, 0.45);
}

body:not(.theme-dark) .pdf-preview-modal-content {
  background: #f8fafc;
  border: 1px solid rgba(148, 163, 184, 0.35);
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.18);
}

body:not(.theme-dark) .pdf-preview-modal-header {
  border-bottom-color: rgba(148, 163, 184, 0.4);
}

body:not(.theme-dark) .pdf-preview-modal-nav-top {
  border-bottom-color: rgba(148, 163, 184, 0.35);
}

body:not(.theme-dark) .pdf-preview-modal-header h3,
body:not(.theme-dark) .pdf-preview-modal-nav-top span {
  color: #0f172a;
}

body:not(.theme-dark) .pdf-preview-modal-close,
body:not(.theme-dark) .pdf-preview-nav-btn {
  background: #ffffff;
  border-color: rgba(148, 163, 184, 0.45);
  color: #0f172a;
}

body:not(.theme-dark) .pdf-preview-nav-btn:disabled {
  opacity: 0.35;
}

.pdf-preview-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 100px;
  color: var(--muted-text);
}

.pdf-preview-loading .loading {
  margin: 0;
}

/* Page Preview header and size slider (used by generateAndDisplayPDFThumbnails) */
.preview-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-color);
}

.preview-header-title {
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--text-color);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.preview-header-title i {
  color: var(--link);
}

.merge-preview-size {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.85rem 1.5rem;
  background: var(--input-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-large);
  font-size: 1.1rem;
  color: var(--text-color);
}

.merge-preview-size i {
  font-size: 1.25rem;
  color: var(--link);
}

.merge-preview-label {
  font-weight: 600;
  white-space: nowrap;
  font-size: 1.35rem;
}

.merge-preview-slider {
  width: 160px;
  height: 8px;
  border-radius: 4px;
  background: var(--border-color);
  outline: none;
  -webkit-appearance: none;
  appearance: none;
  cursor: pointer;
  margin: 0 0.5rem;
  accent-color: var(--link);
}

.merge-preview-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--link);
  cursor: pointer;
  border: 3px solid var(--card-bg);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.25);
  transition: transform 0.15s ease;
}

.merge-preview-slider::-webkit-slider-thumb:hover {
  transform: scale(1.15);
}

.merge-preview-slider::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--link);
  cursor: pointer;
  border: 3px solid var(--card-bg);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.25);
}

.merge-preview-value {
  min-width: 60px;
  text-align: center;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--link);
  background: var(--card-bg);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-small);
}

.merge-preview-total-pages {
  font-size: 0.9rem;
  color: var(--muted-text);
  white-space: nowrap;
}

.merge-preview-total-pages-value {
  color: var(--heading-color);
  font-weight: 700;
}

/* PDF Preview Result Container */
.pdf-preview-result {
  margin-top: 1rem;
  display: flex;
  flex-direction: column;
  width: 100%;
}

.pdf-preview-result .preview-header {
  width: 100%;
  margin-bottom: 0.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-color);
  gap: 1.5rem;
  box-sizing: border-box;
}

.pdf-preview-result .preview-header-title {
  font-size: 1.25rem;
  font-weight: 600;
}

.pdf-preview-result .merge-preview-size {
  margin-left: auto;
  padding: 0.5rem 0.85rem;
  font-size: 0.9rem;
}

.pdf-preview-result .merge-preview-label {
  font-size: 0.85rem;
}

.pdf-preview-result .merge-preview-slider {
  width: 110px;
}

.pdf-preview-result .merge-preview-value {
  min-width: 2.75rem;
  font-size: 0.9rem;
  padding: 0.25rem 0.5rem;
}

.pdf-preview-result .merge-preview-total-pages {
  font-size: 0.82rem;
}

/* Organize tool overrides (apply by class, not element id) */
.organize-preview-result .preview-card-actions {
  gap: clamp(0.15rem, calc(0.3rem * var(--preview-scale, 1)), 0.45rem);
}

.organize-preview-result .preview-card-footer {
  justify-content: center;
}

.organize-preview-result .preview-card-actions-bottom {
  width: 100%;
  justify-content: center;
  align-items: center;
}

.organize-preview-result .preview-card-footer .preview-card-btn {
  width: clamp(18px, calc(24px * var(--preview-scale, 1)), 30px);
  height: clamp(18px, calc(24px * var(--preview-scale, 1)), 30px);
  font-size: clamp(10px, calc(12px * var(--preview-scale, 1)), 13px);
}

.organize-preview-result .preview-card-actions-bottom .preview-card-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  line-height: 1;
}

.organize-preview-result .preview-card-actions-bottom .preview-card-btn i {
  display: block;
  margin: 0;
  line-height: 1;
}

.pdf-preview-pages-wrap {
  width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  margin-top: 0;
  padding-bottom: 5px;
  scrollbar-width: auto !important;
  scrollbar-color: var(--border-color) transparent;
  box-sizing: border-box;
}

@-moz-document url-prefix() {
  .pdf-preview-pages-wrap {
    padding-bottom: 15px;
  }
}

.pdf-preview-pages-wrap.pdf-preview-pages-wrap-rows {
  overflow-x: hidden;
  overflow-y: visible;
}

.pdf-preview-result .pdf-preview-container {
  flex-wrap: nowrap;
  display: inline-flex;
  gap: 0.5rem;
  margin-top: 0;
  padding-right: 0.25rem;
}

.pdf-preview-container.pdf-preview-container-rows {
  display: flex;
  flex-wrap: wrap;
  width: 100%;
  padding-right: 0;
}

.pdf-preview-container-margin {
  margin-top: 0.5rem;
}

@media (max-width: 768px) {
  .pdf-preview-thumbnail {
    width: calc(90px * var(--preview-scale, 1));
    min-height: calc(150px * var(--preview-scale, 1));
  }

  .pdf-preview-modal-content {
    max-width: 95%;
    max-height: 95%;
    padding: 1rem;
  }
}