/* Tiptap Editor - Typora-inspired, theme-aware */

.tiptap-editor {
  position: relative;
  width: 100%;
  height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: #2c2c2c;
  outline: none;
}

.tiptap-editor .ProseMirror {
  width: 100%;
  height: 100%;
  padding: 24px 32px;
  outline: none;
  overflow-y: auto;
}

.tiptap-editor .ProseMirror-focused {
  outline: none;
}

/* Placeholder - shown when document has only one empty paragraph */
.tiptap-editor .ProseMirror p:first-child:last-child:has(br.ProseMirror-trailingBreak:only-child)::before {
  content: '在此输入内容...';
  float: left;
  color: #999;
  pointer-events: none;
  height: 0;
}

/* Typography */
.tiptap-editor h1 {
  font-size: 2em;
  font-weight: 700;
  margin: 1.2em 0 0.6em;
  line-height: 1.3;
  color: #1a1a1a;
}

.tiptap-editor h2 {
  font-size: 1.5em;
  font-weight: 600;
  margin: 1em 0 0.5em;
  line-height: 1.35;
  color: #1a1a1a;
}

.tiptap-editor h3 {
  font-size: 1.25em;
  font-weight: 600;
  margin: 0.8em 0 0.4em;
  color: #1a1a1a;
}

.tiptap-editor p {
  margin: 0.6em 0;
}

.tiptap-editor p:first-child {
  margin-top: 0;
}

.tiptap-editor strong {
  font-weight: 700;
  color: #1a1a1a;
}

.tiptap-editor em {
  font-style: italic;
}

.tiptap-editor s {
  text-decoration: line-through;
  opacity: 0.7;
}

.tiptap-editor code {
  font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, monospace;
  font-size: 0.875em;
  background: #f3f3f3;
  padding: 0.15em 0.4em;
  border-radius: 3px;
  color: #d73a49;
}

.tiptap-editor pre {
  background: #f6f8fa;
  border-radius: 6px;
  padding: 16px;
  overflow-x: auto;
  margin: 1em 0;
}

.tiptap-editor pre code {
  background: none;
  padding: 0;
  color: #24292e;
  font-size: 0.85em;
  line-height: 1.6;
}

.tiptap-editor blockquote {
  border-left: 4px solid #dfe2e5;
  padding-left: 16px;
  margin: 1em 0;
  color: #6a737d;
  font-style: italic;
}

.tiptap-editor ul {
  list-style-type: disc;
  margin: 0.6em 0;
  padding-left: 2em;
}

.tiptap-editor ol {
  list-style-type: decimal;
  margin: 0.6em 0;
  padding-left: 2em;
}

.tiptap-editor li {
  margin: 0.2em 0;
}

.tiptap-editor li > p {
  margin: 0.2em 0;
}

.tiptap-editor hr {
  border: none;
  border-top: 1px solid #e1e4e8;
  margin: 1.5em 0;
}

/* Selection */
.tiptap-editor .ProseMirror ::selection {
  background: #b4d7ff;
}

/* Cursor */
.tiptap-editor .ProseMirror-focused .ProseMirror-gapcursor {
  display: none;
}

/* ========== Dark Theme ========== */

.dark .tiptap-editor {
  color: #dadadb;
}

.dark .tiptap-editor h1,
.dark .tiptap-editor h2,
.dark .tiptap-editor h3,
.dark .tiptap-editor strong {
  color: #f0f0f0;
}

.dark .tiptap-editor .ProseMirror p.is-editor-empty:first-child::before {
  color: #666;
}

.dark .tiptap-editor code {
  background: #2e2e33;
  color: #ff7b72;
}

.dark .tiptap-editor pre {
  background: #2e2e33;
}

.dark .tiptap-editor pre code {
  color: #dadadb;
}

.dark .tiptap-editor blockquote {
  border-left-color: #444;
  color: #9b9c9d;
}

.dark .tiptap-editor hr {
  border-top-color: #333;
}

.dark .tiptap-editor a {
  color: #58a6ff;
}

.dark .tiptap-editor .ProseMirror ::selection {
  background: #1c4e80;
}

/* ========== Link ========== */
.tiptap-editor a {
  color: #0366d6;
  text-decoration: none;
}

.tiptap-editor a:hover {
  text-decoration: underline;
}

/* ========== Table ========== */
.tiptap-editor table {
  border-collapse: collapse;
  table-layout: fixed;
  width: 100%;
  margin: 1em 0;
  overflow: hidden;
  border: 1px solid #e1e4e8;
  border-radius: 6px;
}

.tiptap-editor table td,
.tiptap-editor table th {
  min-width: 80px;
  border: 1px solid #e1e4e8;
  padding: 8px 12px;
  position: relative;
  vertical-align: top;
  box-sizing: border-box;
}

.tiptap-editor table th {
  background: #f6f8fa;
  font-weight: 600;
  text-align: left;
}

.tiptap-editor table .selectedCell {
  background: #b4d7ff;
}

.tiptap-editor table .column-resize-handle {
  position: absolute;
  right: -2px;
  top: 0;
  bottom: -2px;
  width: 4px;
  background-color: #adf;
  pointer-events: none;
}

.tiptap-editor .tableWrapper {
  padding: 1rem 0;
  overflow-x: auto;
}

.tiptap-editor .resize-cursor {
  cursor: ew-resize;
  cursor: col-resize;
}

/* ========== Slash Command ========== */
.slash-command {
  position: fixed;
  z-index: 9999;
  background: #fff;
  border: 1px solid #e1e4e8;
  border-radius: 8px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.12);
  padding: 4px;
  min-width: 260px;
  max-height: 320px;
  overflow-y: auto;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

.slash-command-list {
  display: flex;
  flex-direction: column;
}

.slash-command-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.15s;
}

.slash-command-item:hover,
.slash-command-item.is-selected {
  background: #f0f4ff;
}

.slash-command-item-icon {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f3f3f3;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 600;
  color: #555;
}

.slash-command-item-text {
  flex: 1;
  min-width: 0;
}

.slash-command-item-title {
  font-size: 14px;
  font-weight: 500;
  color: #1a1a1a;
  line-height: 1.3;
}

.slash-command-item-desc {
  font-size: 12px;
  color: #999;
  line-height: 1.3;
}

/* ========== Task List (Enhanced) ========== */
.tiptap-editor ul[data-type="taskList"] {
  list-style: none;
  padding-left: 0;
}

.tiptap-editor ul[data-type="taskList"] li {
  display: flex;
  align-items: center;
  gap: 0.5em;
  margin: 0.3em 0;
}

.tiptap-editor ul[data-type="taskList"] li > label {
  flex-shrink: 0;
  cursor: pointer;
  user-select: none;
  /* label 默认 inline,内部 checkbox 是 inline-block 会受 line-height 撑出
     基线间距导致 checkbox 在 label 内偏上。用 flex 居中并清零行高,
     让 checkbox 严格在 label 盒子中心。 */
  display: flex;
  align-items: center;
  line-height: 0;
}

.tiptap-editor ul[data-type="taskList"] li > label input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: #0366d6;
  cursor: pointer;
}

.tiptap-editor ul[data-type="taskList"] li > div {
  flex: 1;
}

/* task list 项内的段落去掉上下 margin（.tiptap-editor p 默认 .6em 0），
   否则 margin 会撑高 div，使 checkbox 与文本垂直中线错位、项间距过大。 */
.tiptap-editor ul[data-type="taskList"] li > div > p {
  margin: 0;
}

.tiptap-editor ul[data-type="taskList"] li[data-checked="true"] > div {
  text-decoration: line-through;
  opacity: 0.6;
}

/* ========== Image ========== */
.tiptap-editor img {
  max-width: 100%;
  height: auto;
  border-radius: 6px;
  margin: 1em 0;
  display: block;
}

.tiptap-editor img.ProseMirror-selectednode {
  outline: 2px solid #0366d6;
  border-radius: 6px;
}

/* ========== Upload Image Placeholder NodeView ========== */
.upload-image-container {
  position: relative;
  display: inline-block;
  max-width: 100%;
}
.upload-image-container img {
  max-width: 100%;
  height: auto;
  border-radius: 6px;
  margin: 1em 0;
  display: block;
  /* blur/grayscale 出现与消失的过渡（上传中→成功/失败的 filter 切换） */
  transition: filter 0.2s ease;
}
.upload-image-container.is-error img {
  opacity: 0.5;
  filter: grayscale(0.5);
}
/* 上传中：图片高斯模糊，遮罩文字（spinner/"上传中…"）在独立 overlay 层不受影响 */
.upload-image-container.is-uploading {
  overflow: hidden;
}
.upload-image-container.is-uploading img {
  filter: blur(8px);
}
.upload-image-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 6px;
  pointer-events: none;
}
.upload-image-container.is-error .upload-image-overlay {
  background: rgba(0, 0, 0, 0.35);
  pointer-events: auto;
}
.upload-spinner {
  width: 28px;
  height: 28px;
  border: 3px solid rgba(255, 255, 255, 0.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: upload-spin 0.8s linear infinite;
}
@keyframes upload-spin {
  to { transform: rotate(360deg); }
}
.upload-overlay-text {
  color: #fff;
  font-size: 13px;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}
.upload-error-icon {
  color: #fff;
  font-size: 22px;
  line-height: 1;
}
.upload-error-msg {
  color: #fff;
  font-size: 13px;
  text-align: center;
  padding: 0 12px;
  max-width: 90%;
  word-break: break-word;
}
.upload-error-actions {
  display: flex;
  gap: 8px;
}
.upload-btn {
  padding: 3px 12px;
  font-size: 12px;
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.6);
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  cursor: pointer;
}
.upload-btn:hover {
  background: rgba(255, 255, 255, 0.3);
}
.upload-btn-remove {
  border-color: rgba(254, 202, 202, 0.7);
  color: #fecaca;
}
.upload-btn-remove:hover {
  background: rgba(239, 68, 68, 0.3);
}

/* ========== Dark Theme: Table ========== */
.dark .tiptap-editor table {
  border-color: #333;
}

.dark .tiptap-editor table td,
.dark .tiptap-editor table th {
  border-color: #333;
  color: #dadadb;
}

.dark .tiptap-editor table th {
  background: #2e2e33;
}

.dark .tiptap-editor table .selectedCell {
  background: #1c4e80;
}

/* ========== Dark Theme: Slash Command ========== */
.dark .slash-command {
  background: #2e2e33;
  border-color: #444;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

.dark .slash-command-item:hover,
.dark .slash-command-item.is-selected {
  background: #3a3a44;
}

.dark .slash-command-item-icon {
  background: #3a3a44;
  color: #dadadb;
}

.dark .slash-command-item-title {
  color: #f0f0f0;
}

.dark .slash-command-item-desc {
  color: #888;
}

/* ========== Dark Theme: Image ========== */
.dark .tiptap-editor img.ProseMirror-selectednode {
  outline-color: #58a6ff;
}
.dark .upload-image-container.is-error img {
  opacity: 0.45;
}
.dark .upload-btn {
  border-color: rgba(200, 200, 200, 0.4);
}
.dark .upload-btn-remove {
  border-color: rgba(239, 68, 68, 0.5);
}

/* ========== Dark Theme: Task List ========== */
.dark .tiptap-editor ul[data-type="taskList"] li > label input[type="checkbox"] {
  accent-color: #58a6ff;
}

/* ========== Source Toggle Button ========== */
.tiptap-toggle-btn {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 10;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: 6px;
  background: rgba(0, 0, 0, 0.04);
  color: #6a737d;
  font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, monospace;
  font-size: 13px;
  font-weight: 600;
  line-height: 1;
  cursor: pointer;
  opacity: 0.55;
  transition: opacity 0.15s, background 0.15s;
}

.tiptap-toggle-btn:hover {
  opacity: 1;
  background: rgba(0, 0, 0, 0.08);
}

.dark .tiptap-toggle-btn {
  background: rgba(255, 255, 255, 0.06);
  color: #9b9c9d;
}

.dark .tiptap-toggle-btn:hover {
  background: rgba(255, 255, 255, 0.12);
}

/* ========== Source Textarea ========== */
.tiptap-source-textarea {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  padding: 24px 32px;
  box-sizing: border-box;
  border: none;
  background: transparent;
  color: #2c2c2c;
  font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, monospace;
  font-size: 14px;
  line-height: 1.7;
  resize: none;
  outline: none;
  overflow-y: auto;
  z-index: 5;
}

.tiptap-source-textarea::placeholder {
  color: #999;
}

.dark .tiptap-source-textarea {
  color: #dadadb;
}

.dark .tiptap-source-textarea::placeholder {
  color: #666;
}
