:root {
  --viewer-header-h: 58px;
  --viewer-sidebar-w: 320px;
  --viewer-bg: #e2e8f0;
  --viewer-page-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --viewer-page-border: 1px solid rgba(0, 0, 0, 0.08);
}

[data-theme="dark"] {
  --viewer-bg: #090d0a;
  --viewer-page-shadow: 0 10px 30px -5px rgba(0, 0, 0, 0.6), 0 0 1px rgba(255, 255, 255, 0.1);
  --viewer-page-border: 1px solid rgba(255, 255, 255, 0.06);
}

html, body {
  height: 100%;
  height: 100dvh;
  margin: 0;
  padding: 0;
  overflow: hidden;
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  -webkit-text-size-adjust: 100%;
}

.pdf-app {
  display: flex;
  flex-direction: column;
  height: 100vh;
  height: 100dvh;
  width: 100vw;
  overflow: hidden;
  background-color: var(--bg);
  position: relative;
}


.viewer-header {
  height: 48px;
  min-height: 48px;
  background: rgba(247, 249, 247, 0.95);
  
  -webkit-
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 8px;
  z-index: 100;
  gap: 4px;
  position: relative;
  box-sizing: border-box;
  flex-wrap: nowrap;
  width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.viewer-header::-webkit-scrollbar {
  display: none;
}

[data-theme="dark"] .viewer-header {
  background: rgba(11, 15, 12, 0.95);
}

.viewer-header-left,
.viewer-header-center,
.viewer-header-right {
  display: flex;
  align-items: center;
  gap: 3px;
  min-width: 0;
  flex-shrink: 1;
}

.viewer-header-left {
  flex: 0 1 auto;
  justify-content: flex-start;
}

.viewer-header-center {
  flex: 0 1 auto;
  justify-content: center;
}

.viewer-header-right {
  flex: 0 1 auto;
  justify-content: flex-end;
}


.viewer-back-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 3px 7px;
  height: 30px;
  border-radius: 7px;
  background: var(--accent-wash);
  color: var(--accent-deep);
  font-size: 12px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid rgba(34, 197, 94, 0.25);
  transition: all 0.2s ease;
  white-space: nowrap;
  box-sizing: border-box;
  flex-shrink: 0;
}

.viewer-back-btn:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.viewer-title-group {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: 2px;
  min-width: 0;
  flex-shrink: 1;
}

.viewer-badge {
  background: var(--accent);
  color: #ffffff;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 5px;
  border-radius: 4px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  white-space: nowrap;
  flex-shrink: 0;
}

.viewer-doc-select {
  background: var(--bg-card);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 3px 5px;
  font-size: 11.5px;
  font-weight: 600;
  cursor: pointer;
  max-width: 140px;
  text-overflow: ellipsis;
  outline: none;
  transition: border-color 0.2s, background 0.2s;
  box-sizing: border-box;
  flex-shrink: 1;
}

.viewer-doc-select:focus {
  border-color: var(--accent);
}


.tool-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  min-width: 30px;
  min-height: 30px;
  border-radius: 7px;
  border: 1px solid var(--line);
  background: var(--bg-card);
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s ease;
  padding: 0;
  position: relative;
  box-sizing: border-box;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  flex-shrink: 0;
}

.tool-btn:hover {
  color: var(--text);
  border-color: var(--accent);
  background: var(--accent-wash);
}

.tool-btn.active {
  background: var(--accent);
  color: #ffffff;
  border-color: var(--accent);
}

.tool-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
  border-color: var(--line);
  background: transparent;
}

.tool-btn svg {
  width: 15px;
  height: 15px;
  stroke: currentColor;
  stroke-width: 2;
  fill: none;
  flex-shrink: 0;
}

.tool-separator {
  width: 1px;
  height: 18px;
  background: var(--line);
  margin: 0 1px;
  flex-shrink: 0;
}


.page-nav-box {
  display: flex;
  align-items: center;
  gap: 1px;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 1px 2px;
  box-sizing: border-box;
  flex-shrink: 0;
}

.page-num-input {
  width: 28px;
  height: 24px;
  border: 1px solid transparent;
  border-radius: 4px;
  background: transparent;
  color: var(--text);
  font-size: 12px;
  font-weight: 700;
  text-align: center;
  outline: none;
  padding: 0;
}

.page-num-input:focus {
  border-color: var(--accent);
  background: var(--bg);
}

.page-total-label {
  font-size: 11.5px;
  color: var(--text-faint);
  font-weight: 600;
  user-select: none;
  padding-right: 2px;
  white-space: nowrap;
}


.zoom-select {
  height: 30px;
  background: var(--bg-card);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 0 4px;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  outline: none;
  max-width: 82px;
  flex-shrink: 1;
}
  outline: none;
  box-sizing: border-box;
}

.zoom-select:focus {
  border-color: var(--accent);
}


.reading-mode-select {
  height: 34px;
  background: var(--bg-card);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 6px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  outline: none;
  box-sizing: border-box;
}


.viewer-main {
  display: flex;
  flex: 1;
  height: calc(100vh - var(--viewer-header-h));
  height: calc(100dvh - var(--viewer-header-h));
  overflow: hidden;
  position: relative;
}


.viewer-sidebar-backdrop {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.52);
  
  -webkit-
  z-index: 140;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}


.viewer-sidebar {
  width: var(--viewer-sidebar-w);
  min-width: var(--viewer-sidebar-w);
  height: 100%;
  background: var(--bg-card);
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  transition: transform 0.28s cubic-bezier(0.16, 1, 0.3, 1), margin-left 0.28s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 50;
  box-sizing: border-box;
}

.viewer-sidebar.collapsed {
  margin-left: calc(-1 * var(--viewer-sidebar-w));
}

.sidebar-header-row {
  display: flex;
  align-items: stretch;
  border-bottom: 1px solid var(--line);
  background: var(--bg);
  padding: 4px 6px 0;
  gap: 2px;
}

.sidebar-tabs {
  display: flex;
  flex: 1;
  gap: 3px;
  min-width: 0;
}

.sidebar-tab-btn {
  flex: 1;
  padding: 8px 3px;
  font-size: 11.5px;
  font-weight: 600;
  border: none;
  background: transparent;
  color: var(--text-faint);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  border-radius: 6px 6px 0 0;
  transition: all 0.15s;
  white-space: nowrap;
}

.sidebar-tab-btn:hover {
  color: var(--text);
  background: var(--bg-card);
}

.sidebar-tab-btn.active {
  color: var(--accent-deep);
  background: var(--bg-card);
  border-bottom: 2px solid var(--accent);
}

[data-theme="dark"] .sidebar-tab-btn.active {
  color: var(--accent);
}

.sidebar-close-btn {
  display: none;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  margin: 2px 2px 2px 4px;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: var(--bg-card);
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s;
}

.sidebar-close-btn:hover {
  color: var(--text);
  background: var(--accent-wash);
  border-color: var(--accent);
}

.sidebar-content {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
  -webkit-overflow-scrolling: touch;
}

.sidebar-pane {
  display: none;
}

.sidebar-pane.active {
  display: block;
}


.thumbnails-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.thumb-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 6px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--bg);
  cursor: pointer;
  transition: all 0.15s ease;
  position: relative;
  touch-action: manipulation;
}

.thumb-card:hover {
  border-color: var(--accent);
  transform: none;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.thumb-card.active {
  border-color: var(--accent);
  background: var(--accent-wash);
  box-shadow: 0 0 0 2px var(--accent);
}

.thumb-canvas-wrap {
  width: 100%;
  aspect-ratio: 1 / 1.414;
  background: #fff;
  border-radius: 4px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 6px rgba(0,0,0,0.06);
}

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

.thumb-label {
  font-size: 11px;
  font-weight: 700;
  margin-top: 6px;
  color: var(--text-muted);
}


.outline-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.outline-item {
  margin-bottom: 4px;
}

.outline-link {
  display: block;
  padding: 8px 10px;
  font-size: 12.5px;
  line-height: 1.4;
  color: var(--text);
  text-decoration: none;
  border-radius: 6px;
  border-left: 2px solid transparent;
  transition: all 0.15s;
}

.outline-link:hover {
  background: var(--accent-wash);
  border-left-color: var(--accent);
  color: var(--accent-deep);
}

[data-theme="dark"] .outline-link:hover {
  color: var(--accent);
}

.outline-item.level-2 .outline-link {
  padding-left: 20px;
  font-size: 12px;
  color: var(--text-muted);
}


.search-box {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 12px;
}

.search-input-wrap {
  display: flex;
  gap: 4px;
}

.search-input {
  flex: 1;
  height: 34px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
  font-size: 13px;
  outline: none;
}

.search-input:focus {
  border-color: var(--accent);
}

.search-meta-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11.5px;
  color: var(--text-faint);
  padding: 2px 4px;
}

.search-results-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.search-result-item {
  padding: 8px 10px;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: var(--bg);
  cursor: pointer;
  font-size: 12px;
  line-height: 1.4;
  transition: all 0.15s;
}

.search-result-item:hover {
  border-color: var(--accent);
  background: var(--accent-wash);
}

.search-result-page {
  font-size: 11px;
  font-weight: 700;
  color: var(--accent-deep);
  margin-bottom: 2px;
}

[data-theme="dark"] .search-result-page {
  color: var(--accent);
}

.search-result-text mark {
  background: rgba(34, 197, 94, 0.35);
  color: inherit;
  font-weight: 700;
  border-radius: 2px;
  padding: 0 2px;
}


.doc-meta-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}

.doc-meta-table tr {
  border-bottom: 1px solid var(--line);
}

.doc-meta-table td {
  padding: 8px 4px;
}

.doc-meta-key {
  font-weight: 600;
  color: var(--text-muted);
  width: 38%;
}

.doc-meta-val {
  color: var(--text);
  word-break: break-word;
}


.viewer-viewport {
  flex: 1;
  height: 100%;
  overflow-y: auto;
  overflow-x: auto;
  background: var(--viewer-bg);
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 24px 16px 80px 16px;
  box-sizing: border-box;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  outline: none;
}

.pages-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  width: 100%;
  min-height: 100%;
}


.pages-container.layout-single .page-wrapper {
  display: none;
}

.pages-container.layout-single .page-wrapper.current-single {
  display: block;
}

.pages-container.layout-spread {
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
}

.page-wrapper {
  position: relative;
  background-color: #ffffff;
  box-shadow: var(--viewer-page-shadow);
  border: var(--viewer-page-border);
  border-radius: 4px;
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease, width 0.15s ease, height 0.15s ease;
  flex-shrink: 0;
  box-sizing: content-box;
}

.page-wrapper canvas {
  display: block;
  width: 100%;
  height: 100%;
  vertical-align: middle;
}


.page-wrapper .textLayer {
  position: absolute;
  text-align: initial;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  overflow: hidden;
  opacity: 1;
  line-height: 1;
  -webkit-text-size-adjust: none;
  -moz-text-size-adjust: none;
  text-size-adjust: none;
  forced-color-adjust: none;
  transform-origin: 0 0;
  z-index: 2;
  pointer-events: auto;
  user-select: text;
  -webkit-user-select: text;
}

.page-wrapper .textLayer :is(span, br) {
  color: transparent;
  position: absolute;
  white-space: pre;
  cursor: text;
  transform-origin: 0% 0%;
}

.page-wrapper .textLayer ::selection {
  background: rgba(34, 197, 94, 0.45);
  color: transparent;
}

.page-wrapper .textLayer ::-moz-selection {
  background: rgba(34, 197, 94, 0.45);
  color: transparent;
}

.page-wrapper .textLayer br::selection,
.page-wrapper .textLayer br::-moz-selection {
  background: transparent;
}


.pdf-app.mode-dark .page-wrapper {
  filter: invert(0.92) hue-rotate(180deg) brightness(0.95) contrast(1.15);
  background: #111;
}

.pdf-app.mode-sepia .page-wrapper {
  filter: sepia(0.38) contrast(0.95) brightness(0.96);
  background: #fbf0d9;
}

.pdf-app.mode-contrast .page-wrapper {
  filter: contrast(1.3) brightness(1.05);
}


.viewer-loading {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  background: var(--bg-card);
  padding: 20px 28px;
  border-radius: 6px;
  border: 1px solid var(--line);
  box-shadow: 0 10px 25px rgba(0,0,0,0.15);
  z-index: 80;
}

.spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--line);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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


.viewer-toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: #131715;
  color: #fff;
  padding: 10px 18px;
  border-radius: 9999px;
  font-size: 13px;
  font-weight: 600;
  box-shadow: 0 8px 20px rgba(0,0,0,0.25);
  display: flex;
  align-items: center;
  gap: 8px;
  z-index: 200;
  opacity: 0;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.25s ease;
  pointer-events: none;
}

.viewer-toast.visible {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}


.mobile-quick-bar {
  display: none;
  position: fixed;
  bottom: max(14px, env(safe-area-inset-bottom, 14px));
  left: 50%;
  transform: translateX(-50%);
  background: rgba(247, 249, 247, 0.94);
  
  -webkit-
  border: 1px solid var(--line);
  border-radius: 9999px;
  padding: 4px 8px;
  gap: 6px;
  box-shadow: 0 12px 30px rgba(0,0,0,0.2);
  z-index: 90;
  align-items: center;
}

[data-theme="dark"] .mobile-quick-bar {
  background: rgba(18, 24, 20, 0.94);
  box-shadow: 0 12px 30px rgba(0,0,0,0.6);
}

.mobile-quick-btn {
  width: 36px;
  height: 36px;
  min-width: 36px;
  min-height: 36px;
  border-radius: 50%;
  border: none;
  background: transparent;
  color: var(--text-muted);
}

.mobile-quick-btn:hover,
.mobile-quick-btn:active {
  background: var(--accent-wash);
  color: var(--accent-deep);
}

.mobile-page-num {
  font-size: 12.5px;
  font-weight: 700;
  color: var(--text);
  padding: 0 4px;
  white-space: nowrap;
}


.shortcuts-dialog {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--bg-card);
  color: var(--text);
  padding: 24px;
  max-width: 500px;
  width: 90%;
  box-shadow: 0 20px 40px rgba(0,0,0,0.3);
  margin: auto;
}

.shortcuts-dialog::backdrop {
  background: rgba(0, 0, 0, 0.5);
  
}

.shortcuts-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 12px;
}

.shortcuts-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  font-size: 13px;
}

.shortcut-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 8px;
  background: var(--bg);
  border-radius: 6px;
}

kbd {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 2px 6px;
  font-family: inherit;
  font-size: 11px;
  font-weight: 700;
  box-shadow: 0 1px 1px rgba(0,0,0,0.1);
}


.license-dialog {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--bg-card);
  color: var(--text);
  padding: 0;
  max-width: 580px;
  width: 92%;
  box-shadow: 0 24px 48px rgba(0,0,0,0.35);
  margin: auto;
  overflow: hidden;
}

.license-dialog::backdrop {
  background: rgba(0, 0, 0, 0.6);
  
  -webkit-
}

.license-dialog-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--line);
  background: var(--bg);
}

.license-header-title {
  display: flex;
  align-items: center;
  gap: 10px;
}

.license-header-title h3 {
  margin: 0;
  font-size: 15.5px;
  font-weight: 700;
  font-family: var(--font-heading);
}

.license-badge-pill {
  background: var(--accent-wash);
  color: var(--accent-deep);
  border: 1px solid rgba(34, 197, 94, 0.3);
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 9999px;
  white-space: nowrap;
}

[data-theme="dark"] .license-badge-pill {
  color: var(--accent);
}

.license-dialog-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-height: 70vh;
  overflow-y: auto;
}

.license-doc-summary h4 {
  margin: 0 0 4px;
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
}

.license-doc-meta {
  margin: 0;
  font-size: 12.5px;
  color: var(--text-muted);
}

.license-terms-card {
  background: var(--accent-wash);
  border: 1px solid rgba(34, 197, 94, 0.25);
  border-radius: 6px;
  padding: 14px 16px;
  font-size: 12.5px;
  line-height: 1.5;
}

.license-terms-header {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--accent-deep);
  margin-bottom: 6px;
  font-size: 13px;
}

[data-theme="dark"] .license-terms-header {
  color: var(--accent);
}

.license-terms-text {
  margin: 0 0 10px;
  color: var(--text);
}

.license-ai-clause {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.45;
}

.license-fingerprint-box,
.license-citation-box {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 12px 14px;
}

.fingerprint-label-row,
.citation-label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.btn-copy-mini {
  background: var(--accent-wash);
  color: var(--accent-deep);
  border: 1px solid rgba(34, 197, 94, 0.3);
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s;
}

.btn-copy-mini:hover {
  background: var(--accent);
  color: #fff;
}

.fingerprint-code {
  display: block;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 11px;
  color: var(--accent-deep);
  background: var(--bg-card);
  padding: 6px 8px;
  border-radius: 6px;
  border: 1px solid var(--line);
  word-break: break-all;
  user-select: all;
}

[data-theme="dark"] .fingerprint-code {
  color: var(--accent);
}

.citation-content {
  font-size: 12px;
  color: var(--text);
  line-height: 1.4;
  background: var(--bg-card);
  padding: 8px 10px;
  border-radius: 6px;
  border: 1px solid var(--line);
  font-style: italic;
  user-select: all;
}

.license-checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  cursor: pointer;
  font-size: 12.5px;
  line-height: 1.45;
  color: var(--text);
  padding: 4px 0;
}

.license-checkbox-label input[type="checkbox"] {
  accent-color: var(--accent);
  width: 17px;
  height: 17px;
  margin-top: 2px;
  cursor: pointer;
  flex-shrink: 0;
}

.license-dialog-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  padding: 14px 20px;
  border-top: 1px solid var(--line);
  background: var(--bg);
  flex-wrap: wrap;
}

.btn-license-download {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  font-size: 13px;
  font-weight: 700;
}

.btn-license-share {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  font-size: 13px;
}




@media (max-width: 1200px) {
  .viewer-back-btn span {
    display: none;
  }
  .viewer-badge {
    font-size: 9.5px;
    padding: 2px 4px;
  }
  .viewer-doc-select {
    max-width: 140px;
    font-size: 11px;
  }
  .zoom-select, .reading-mode-select {
    max-width: 78px;
    font-size: 10.5px;
  }
  .tool-btn {
    width: 30px;
    height: 30px;
    min-width: 30px;
    min-height: 30px;
  }
  .tool-btn svg {
    width: 14.5px;
    height: 14.5px;
  }
  .tool-separator {
    margin: 0 2px;
  }
}


@media (max-width: 1050px) {
  :root {
    --viewer-sidebar-w: 260px;
  }
  .viewer-header {
    gap: 2px;
    padding: 0 4px;
  }
  .viewer-header-left,
  .viewer-header-center,
  .viewer-header-right {
    gap: 2px;
  }
  .viewer-badge {
    display: none;
  }
  .viewer-back-btn span {
    display: none;
  }
  .viewer-doc-select {
    max-width: 120px;
    font-size: 10.5px;
    padding: 2px 4px;
  }
  .tool-btn {
    width: 28px;
    height: 28px;
    min-width: 28px;
    min-height: 28px;
    border-radius: 5px;
  }
  .tool-btn svg {
    width: 14px;
    height: 14px;
  }
  .page-num-input {
    width: 26px;
    height: 24px;
    font-size: 11px;
  }
  .page-total-label {
    font-size: 11px;
  }
  .zoom-select, .reading-mode-select {
    max-width: 68px;
    font-size: 10px;
    height: 28px;
    padding: 0 2px;
  }
  .tool-separator {
    display: none;
  }
}


@media (max-width: 880px) {
  .viewer-header {
    gap: 2px;
    padding: 0 3px;
  }
  .viewer-back-btn span {
    display: none;
  }
  .viewer-badge {
    display: none;
  }
  .tool-btn {
    width: 26px;
    height: 26px;
    min-width: 26px;
    min-height: 26px;
  }
  .tool-btn svg {
    width: 13.5px;
    height: 13.5px;
  }
  .viewer-doc-select {
    max-width: 100px;
    font-size: 10px;
  }
  .zoom-select, .reading-mode-select {
    max-width: 58px;
    font-size: 9.5px;
    padding: 0 2px;
    height: 26px;
  }
  #btn-shortcuts {
    display: none;
  }
  .mobile-quick-bar {
    display: flex;
  }
  .sidebar-close-btn {
    display: inline-flex;
  }
  .viewer-sidebar-backdrop {
    display: block;
  }
  .viewer-sidebar-backdrop.active {
    opacity: 1;
    pointer-events: auto;
  }

  
  .viewer-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    height: 100vh;
    height: 100dvh;
    width: min(85vw, 340px);
    min-width: min(85vw, 340px);
    z-index: 150;
    box-shadow: 0 0 40px rgba(0, 0, 0, 0.35);
    transform: translateX(0);
    margin-left: 0;
  }
  .viewer-sidebar.collapsed {
    transform: translateX(-105%);
    margin-left: 0;
  }
  .viewer-viewport {
    padding: 12px 6px 70px 6px;
  }
}


@media (max-width: 640px) {
  .viewer-header {
    height: 42px;
    min-height: 42px;
    padding: 0 3px;
  }
  #select-layout {
    display: none;
  }
  .page-nav-box {
    display: none;
  }
  .zoom-box button {
    display: none;
  }
  .viewer-doc-select {
    max-width: 85px;
    font-size: 9.5px;
  }
  .zoom-select, .reading-mode-select {
    max-width: 54px;
    font-size: 9px;
    height: 25px;
  }
  .tool-btn {
    width: 25px;
    height: 25px;
    min-width: 25px;
    min-height: 25px;
  }
  .tool-btn svg {
    width: 12.5px;
    height: 12.5px;
  }
  .shortcuts-grid {
    grid-template-columns: 1fr;
  }
}


@media (max-width: 420px) {
  .viewer-header {
    padding: 0 2px;
    gap: 1px;
  }
  .reading-mode-select {
    display: none;
  }
  .viewer-doc-select {
    max-width: 75px;
    font-size: 9px;
    padding: 2px 2px;
  }
  .zoom-select {
    max-width: 48px;
    font-size: 8.5px;
  }
  .tool-btn {
    width: 24px;
    height: 24px;
    min-width: 24px;
    min-height: 24px;
  }
  .tool-btn svg {
    width: 12px;
    height: 12px;
  }
}


.print-container {
  display: none;
}

@media print {
  
  *, *:before, *:after {
    background: transparent !important;
    color: #000000 !important;
    box-shadow: none !important;
    text-shadow: none !important;
  }

  html, body {
    width: 100% !important;
    height: auto !important;
    min-height: 100% !important;
    margin: 0 !important;
    padding: 0 !important;
    overflow: visible !important;
    background: #ffffff !important;
    -webkit-print-color-adjust: exact !important;
    print-color-adjust: exact !important;
  }

  .pdf-app {
    display: block !important;
    width: 100% !important;
    height: auto !important;
    overflow: visible !important;
    position: static !important;
  }

  
  .viewer-header,
  .viewer-sidebar,
  .viewer-sidebar-backdrop,
  .mobile-quick-bar,
  .viewer-toast,
  .shortcuts-dialog,
  .viewer-loading,
  .scroll-progress-bar,
  .bg-blob-container,
  #pdf-print-iframe {
    display: none !important;
  }

  .viewer-main {
    display: block !important;
    height: auto !important;
    overflow: visible !important;
    position: static !important;
  }

  .viewer-viewport {
    display: block !important;
    width: 100% !important;
    height: auto !important;
    overflow: visible !important;
    padding: 0 !important;
    margin: 0 !important;
    background: transparent !important;
  }

  @page {
    size: auto;
    margin: 8mm;
  }

  
  .print-container {
    display: block !important;
    width: 100% !important;
    margin: 0 !important;
    padding: 0 !important;
  }

  .print-page-item {
    page-break-inside: avoid !important;
    break-inside: avoid !important;
    page-break-after: always !important;
    break-after: page !important;
    margin: 0 0 10mm 0 !important;
    text-align: center !important;
    width: 100% !important;
  }

  .print-page-item:last-child {
    page-break-after: auto !important;
    break-after: auto !important;
    margin-bottom: 0 !important;
  }

  .print-page-canvas {
    display: block !important;
    width: 100% !important;
    max-width: 100% !important;
    height: auto !important;
    margin: 0 auto !important;
  }

  
  .pages-container {
    display: block !important;
    width: 100% !important;
    gap: 0 !important;
  }

  .page-wrapper {
    page-break-inside: avoid !important;
    break-inside: avoid !important;
    page-break-after: always !important;
    break-after: page !important;
    margin: 0 auto 10mm auto !important;
    box-shadow: none !important;
    border: none !important;
    border-radius: 0 !important;
    filter: none !important; 
    width: 100% !important;
    max-width: 100% !important;
    height: auto !important;
    background: #ffffff !important;
  }

  .page-wrapper:last-child {
    page-break-after: auto !important;
    break-after: auto !important;
    margin-bottom: 0 !important;
  }

  .page-wrapper canvas {
    width: 100% !important;
    height: auto !important;
    max-width: 100% !important;
  }

  .textLayer {
    display: none !important;
  }
}