/* ==========================================================================
   MS WORD ONLINE - DOCUMENT CANVAS & EDITOR ENGINE STYLES
   Multi-Page A4 / Letter Canvas, Contenteditable Typography, Elements
   ========================================================================== */

/* Main Canvas Scroll Viewport */
.canvas-viewport {
  flex: 1;
  background-color: var(--bg-canvas);
  overflow: auto;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 32px 0 64px 0;
  scroll-behavior: smooth;
  height: 100%;
}

.canvas-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--page-gap);
  transform-origin: top center;
  transition: transform 0.1s ease;
}

/* Individual Virtual Page (A4 standard: 816px x 1056px at 96 DPI) */
.doc-page {
  width: var(--page-width);
  min-height: var(--page-height);
  background-color: var(--bg-page);
  box-shadow: var(--shadow-page);
  border-radius: 2px;
  position: relative;
  display: flex;
  flex-direction: column;
  padding: var(--page-padding-top) var(--page-padding-right) var(--page-padding-bottom) var(--page-padding-left);
  box-sizing: border-box;
  color: var(--text-primary);
  font-family: var(--font-family-doc);
  font-size: 11pt;
  line-height: 1.5;
  outline: none;
  transition: box-shadow var(--transition-fast), background-color var(--transition-fast);
}

.doc-page:focus-within {
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.22), 0 0 0 1px rgba(24, 90, 189, 0.25);
}

/* Multi-Column Layouts */
.doc-page.two-columns .page-content-editable {
  column-count: 2;
  column-gap: 36px;
  column-rule: 1px solid #e2e8f0;
}

.doc-page.three-columns .page-content-editable {
  column-count: 3;
  column-gap: 24px;
  column-rule: 1px solid #e2e8f0;
}

/* Page Border Styles */
.doc-page.border-box {
  border: 2px solid #185abd;
}

.doc-page.border-double {
  border: 4px double #185abd;
}

.doc-page.border-shadow {
  border: 1px solid #d1d5db;
  box-shadow: 8px 8px 0px rgba(24, 90, 189, 0.25), var(--shadow-page);
}

/* Web Layout Mode */
.canvas-viewport.web-layout {
  padding: 20px 40px;
}

.canvas-viewport.web-layout .doc-page {
  width: 100% !important;
  max-width: 1100px;
  min-height: auto;
  box-shadow: none;
  border-radius: 0;
  border-left: 1px solid #e2e8f0;
  border-right: 1px solid #e2e8f0;
}

/* Read Mode / Focus Mode */
.canvas-viewport.read-mode {
  background-color: #fcfbf7;
  padding: 40px;
}

.canvas-viewport.read-mode .doc-page {
  background-color: #fcfbf7;
  box-shadow: none;
  font-size: 13pt;
  line-height: 1.8;
  max-width: 820px;
}

/* Page Header & Footer Areas */
.page-header-area {
  position: absolute;
  top: 24px;
  left: var(--page-padding-left);
  right: var(--page-padding-right);
  height: 48px;
  border-bottom: 1px dashed transparent;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 9pt;
  color: var(--text-secondary);
  user-select: none;
}

.page-header-area:hover, .page-header-area:focus-within {
  border-bottom-color: #0078d4;
}

.page-footer-area {
  position: absolute;
  bottom: 24px;
  left: var(--page-padding-left);
  right: var(--page-padding-right);
  height: 48px;
  border-top: 1px dashed transparent;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 9pt;
  color: var(--text-secondary);
  user-select: none;
}

.page-footer-area:hover, .page-footer-area:focus-within {
  border-top-color: #0078d4;
}

.header-footer-input {
  outline: none;
  flex: 1;
  min-height: 18px;
}

.page-number-display {
  font-weight: 500;
}

/* Watermark Overlay */
.page-watermark {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(-45deg);
  font-size: 72pt;
  font-weight: 800;
  color: rgba(0, 0, 0, 0.05);
  pointer-events: none;
  user-select: none;
  text-transform: uppercase;
  letter-spacing: 12px;
  white-space: nowrap;
  z-index: 1;
  display: none;
}

.page-watermark.visible {
  display: block;
}

/* Editable Page Body */
.page-content-editable {
  flex: 1;
  outline: none;
  position: relative;
  z-index: 2;
  word-wrap: break-word;
  overflow-wrap: break-word;
  user-select: text;
  cursor: text;
}

/* Base Document Typography within Contenteditable */
.page-content-editable p {
  margin-bottom: 8pt;
  min-height: 1.2em;
}

.page-content-editable h1 {
  font-size: 20pt;
  font-weight: 700;
  color: var(--ms-word-blue);
  margin-top: 16pt;
  margin-bottom: 8pt;
  line-height: 1.2;
}

.page-content-editable h2 {
  font-size: 16pt;
  font-weight: 600;
  color: var(--ms-word-blue);
  margin-top: 14pt;
  margin-bottom: 6pt;
  line-height: 1.25;
}

.page-content-editable h3 {
  font-size: 13pt;
  font-weight: 600;
  color: #323130;
  margin-top: 10pt;
  margin-bottom: 4pt;
}

.page-content-editable h4 {
  font-size: 11pt;
  font-weight: 600;
  color: #605e5c;
  margin-top: 8pt;
  margin-bottom: 4pt;
}

.page-content-editable ul,
.page-content-editable ol {
  margin-left: 28pt;
  margin-bottom: 8pt;
}

.page-content-editable li {
  margin-bottom: 3pt;
}

.page-content-editable a {
  color: var(--text-link);
  text-decoration: underline;
  cursor: pointer;
}

.page-content-editable blockquote {
  border-left: 3.5px solid var(--ms-word-blue);
  padding: 6pt 12pt;
  margin: 8pt 0;
  color: #4b5563;
  background-color: #f8fafc;
  font-style: italic;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.page-content-editable hr {
  border: none;
  height: 1.5px;
  background-color: #d1d5db;
  margin: 14pt 0;
}

.page-content-editable pre.code-block {
  background-color: #1e1e1e;
  color: #d4d4d4;
  padding: 10pt 14pt;
  border-radius: var(--radius-sm);
  font-family: 'Consolas', 'Courier New', monospace;
  font-size: 9.5pt;
  line-height: 1.45;
  margin: 10pt 0;
  overflow-x: auto;
  user-select: text;
}

/* Drop Cap */
.drop-cap::first-letter {
  font-size: 42pt;
  font-weight: bold;
  float: left;
  line-height: 0.8;
  margin-right: 8px;
  color: var(--ms-word-blue);
}

/* WordArt Styles */
.wordart-shadow {
  text-shadow: 2px 2px 4px rgba(0,0,0,0.35);
  font-weight: bold;
}

.wordart-glow {
  text-shadow: 0 0 8px rgba(37, 99, 235, 0.6);
  font-weight: bold;
}

.wordart-outline {
  -webkit-text-stroke: 1px #185abd;
  color: transparent;
  font-weight: 800;
}

/* Footnotes Area at Bottom of Page */
.doc-footnotes-area {
  border-top: 1px solid #cbd5e1;
  margin-top: 24pt;
  padding-top: 8pt;
  font-size: 8.5pt;
  color: #64748b;
}

.doc-footnotes-area ol {
  margin-left: 18pt;
}

/* Callout Warning / Info Boxes */
.callout-box {
  padding: 10pt 14pt;
  border-radius: var(--radius-sm);
  margin: 10pt 0;
  display: flex;
  gap: 10pt;
  align-items: flex-start;
}

.callout-box.info {
  background-color: #eff6ff;
  border: 1px solid #bfdbfe;
  color: #1e40af;
}

.callout-box.warning {
  background-color: #fffbeb;
  border: 1px solid #fde68a;
  color: #92400e;
}

.callout-box.success {
  background-color: #f0fdf4;
  border: 1px solid #bbf7d0;
  color: #166534;
}

/* Document Tables */
.doc-table {
  width: 100%;
  border-collapse: collapse;
  margin: 12pt 0;
  font-size: 10pt;
}

.doc-table th, .doc-table td {
  border: 1px solid #cbd5e1;
  padding: 6pt 10pt;
  text-align: left;
  min-width: 40px;
  position: relative;
}

.doc-table th {
  background-color: var(--ms-word-ultralight-blue);
  color: var(--ms-word-dark-blue);
  font-weight: 600;
}

.doc-table.zebra tbody tr:nth-child(even) {
  background-color: #f8fafc;
}

/* Resizable & Draggable Embedded Images */
.image-wrapper {
  display: inline-block;
  position: relative;
  margin: 6pt 0;
  user-select: none;
}

.image-wrapper.align-left {
  float: left;
  margin-right: 14pt;
}

.image-wrapper.align-right {
  float: right;
  margin-left: 14pt;
}

.image-wrapper.align-center {
  display: block;
  text-align: center;
  margin: 10pt auto;
}

.image-wrapper img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
  display: block;
  box-shadow: var(--shadow-sm);
}

.image-wrapper.selected {
  outline: 2px solid var(--ms-word-blue);
}

.image-resize-handle {
  position: absolute;
  width: 10px;
  height: 10px;
  background: #ffffff;
  border: 2px solid var(--ms-word-blue);
  border-radius: 2px;
  z-index: 10;
  display: none;
}

.image-wrapper.selected .image-resize-handle {
  display: block;
}

.handle-se { right: -5px; bottom: -5px; cursor: se-resize; }
.handle-sw { left: -5px; bottom: -5px; cursor: sw-resize; }
.handle-ne { right: -5px; top: -5px; cursor: ne-resize; }
.handle-nw { left: -5px; top: -5px; cursor: nw-resize; }

/* Draggable Floating Text Box */
.floating-text-box {
  position: absolute;
  background: #ffffff;
  border: 1.5px solid #94a3b8;
  border-radius: var(--radius-sm);
  padding: 10px;
  min-width: 150px;
  min-height: 80px;
  box-shadow: var(--shadow-md);
  z-index: 20;
  cursor: move;
}

/* SVG Shapes */
.doc-shape-wrapper {
  display: inline-block;
  margin: 8pt 0;
  cursor: pointer;
}

/* Floating Mini Formatting Toolbar */
#mini-toolbar {
  position: absolute;
  background: #ffffff;
  border: 1px solid #d1d5db;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  display: none;
  align-items: center;
  gap: 2px;
  padding: 4px;
  z-index: 10000;
  animation: fadeIn 0.15s ease;
}

#mini-toolbar.show {
  display: flex;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Sidebars (Navigation Outline on Left, Comments on Right) */
.editor-side-panel {
  width: 260px;
  background: #ffffff;
  border-right: 1px solid var(--border-default);
  display: none;
  flex-direction: column;
  flex-shrink: 0;
  z-index: 70;
  height: 100%;
}

.editor-side-panel.right-panel {
  border-right: none;
  border-left: 1px solid var(--border-default);
}

.editor-side-panel.show {
  display: flex;
}

.side-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background-color: #f8f9fa;
  border-bottom: 1px solid #e5e7eb;
  font-weight: 600;
  font-size: 13px;
}

.side-panel-close-btn {
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--text-secondary);
}

.side-panel-body {
  flex: 1;
  padding: 12px;
  overflow-y: auto;
}

.nav-outline-item {
  padding: 6px 8px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 12.5px;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 6px;
  transition: background var(--transition-fast);
}

.nav-outline-item:hover {
  background-color: var(--ms-word-ultralight-blue);
  color: var(--ms-word-blue);
}

.nav-outline-item.h1 { font-weight: 600; }
.nav-outline-item.h2 { padding-left: 18px; color: #475569; }
.nav-outline-item.h3 { padding-left: 28px; color: #64748b; }

/* Comments List */
.comment-card {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: var(--radius-md);
  padding: 10px 12px;
  margin-bottom: 10px;
}

.comment-author {
  font-weight: 600;
  font-size: 12px;
  color: var(--ms-word-blue);
  margin-bottom: 4px;
}

.comment-text {
  font-size: 12px;
  color: var(--text-primary);
  line-height: 1.4;
}

.comment-date {
  font-size: 10.5px;
  color: var(--text-secondary);
  margin-top: 6px;
}