/* 参考产品同款「编辑文本」弹窗 + Tiptap 内容排版 + slash/@ 菜单。 */

/* ---------- 弹窗骨架 ---------- */
.te-overlay {
  position: fixed;
  inset: 0;
  z-index: 90;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 30px;
  background: rgba(10, 8, 18, 0.58);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.te-overlay.is-full { padding: 0; }
.te-modal {
  position: relative;
  display: flex;
  flex-direction: column;
  width: min(980px, 94vw);
  height: min(700px, 90vh);
  overflow: hidden;
  border: 1px solid var(--separator-strong);
  border-radius: var(--r-lg);
  background: var(--bg-elevated);
  box-shadow: var(--shadow-4);
  color: var(--label);
}
.te-modal.is-full {
  width: 100vw;
  height: 100vh;
  max-width: none;
  max-height: none;
  border-radius: 0;
  border: 0;
}

.te-head {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  flex: none;
  height: 52px;
  padding: 0 14px 0 20px;
  border-bottom: 1px solid var(--separator);
  background: color-mix(in srgb, var(--bg-elevated) 92%, var(--canvas));
}
.te-title {
  font: 650 14px/1 var(--font-display);
  color: var(--label);
  letter-spacing: -0.01em;
}
.te-head-spacer { flex: 1; }
.te-toc-btn,
.te-head-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  height: 30px;
  padding: 0 9px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--label-2);
  font: 500 12px/1 var(--font);
  cursor: pointer;
}
.te-toc-btn { margin-left: 8px; }
.te-toc-btn:hover,
.te-head-btn:hover,
.te-toc-btn.is-on { background: var(--hover); color: var(--label); }
.te-head-btn:disabled { opacity: 0.45; cursor: default; }
.te-head-btn .icon { flex: none; }

/* 目录下拉 */
.te-toc-panel {
  position: absolute;
  top: 48px;
  left: 16px;
  z-index: 5;
  width: 250px;
  max-height: min(52vh, 420px);
  overflow-y: auto;
  padding: 7px;
  border: 1px solid var(--separator-strong);
  border-radius: var(--r-md);
  background: var(--bg-elevated);
  box-shadow: var(--shadow-3);
}
.te-toc-title {
  margin: 4px 8px 6px;
  font: 600 10.5px/1 var(--font);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--label-3);
}
.te-toc-item {
  display: block;
  width: 100%;
  padding: 7px 8px;
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: var(--label-2);
  font: 500 12px/1.35 var(--font);
  text-align: left;
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.te-toc-item:hover { background: var(--hover); color: var(--label); }
.te-toc-empty {
  margin: 4px 8px 8px;
  color: var(--label-3);
  font: 400 11.5px/1.6 var(--font);
}

/* ---------- 工具条 ---------- */
.te-toolbar {
  display: flex;
  align-items: center;
  gap: 1px;
  flex: none;
  height: 46px;
  padding: 0 12px;
  overflow-x: auto;
  border-bottom: 1px solid var(--separator);
  background: var(--bg-elevated);
  scrollbar-width: none;
}
.te-toolbar::-webkit-scrollbar { display: none; }
.te-btn {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 28px;
  height: 28px;
  padding: 0 6px;
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: var(--label-2);
  font: 600 12.5px/1 var(--font);
  cursor: pointer;
}
.te-btn:hover { background: var(--hover); color: var(--label); }
.te-btn.is-on { background: var(--brand-soft); color: var(--brand); }
.te-btn:disabled { opacity: 0.35; cursor: default; background: transparent; }
.te-btn .icon { flex: none; }
.te-mono { font: 600 11px/1 var(--font-mono); letter-spacing: -0.04em; }
.te-ico { display: inline-flex; align-items: center; }
.te-ico svg { display: block; }
.te-sep {
  flex: none;
  width: 1px;
  height: 18px;
  margin: 0 6px;
  background: var(--separator);
}

/* ---------- 正文 ---------- */
.te-body {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 26px 0 70px;
  background:
    radial-gradient(120% 80% at 50% 0%, color-mix(in srgb, var(--canvas) 55%, transparent), transparent 70%),
    var(--canvas);
  overscroll-behavior: contain;
}
.te-paper {
  width: min(720px, calc(100% - 64px));
  margin: 0 auto;
  zoom: var(--te-zoom, 1);
}
.te-editor.rt-root,
.te-editor.rt-root .ProseMirror {
  min-height: 360px;
}
.te-editor.rt-root { max-height: none; overflow: visible; }

/* ---------- Tiptap 排版 ---------- */
.rt-root {
  min-height: var(--rt-min, 120px);
  max-height: var(--rt-max, 520px);
  overflow-y: auto;
}
.rt-root .ProseMirror {
  min-height: var(--rt-min, 120px);
  outline: none;
  color: var(--label);
  font: 400 15px/1.85 var(--font);
  caret-color: var(--brand);
  word-break: break-word;
}
.rt-root .ProseMirror:focus,
.rt-root .ProseMirror:focus-visible { box-shadow: none; }
.rt-root .ProseMirror > *:first-child { margin-top: 0; }
.rt-root .ProseMirror p { margin: 0 0 11px; }
.rt-root .ProseMirror h1,
.rt-root .ProseMirror h2,
.rt-root .ProseMirror h3,
.rt-root .ProseMirror h4,
.rt-root .ProseMirror h5,
.rt-root .ProseMirror h6 {
  color: var(--label);
  font-family: var(--font-display);
  letter-spacing: -0.015em;
}
.rt-root .ProseMirror h1 { margin: 26px 0 12px; font-size: 27px; font-weight: 700; line-height: 1.3; }
.rt-root .ProseMirror h2 { margin: 22px 0 10px; font-size: 21px; font-weight: 680; line-height: 1.35; }
.rt-root .ProseMirror h3 { margin: 18px 0 8px; font-size: 17px; font-weight: 650; line-height: 1.4; }
.rt-root .ProseMirror h4 { margin: 16px 0 7px; font-size: 15.5px; font-weight: 650; line-height: 1.45; }
.rt-root .ProseMirror h5 { margin: 14px 0 6px; font-size: 14.5px; font-weight: 650; line-height: 1.45; }
.rt-root .ProseMirror h6 { margin: 14px 0 6px; font-size: 14px; font-weight: 600; line-height: 1.45; color: var(--label-2); }
.rt-root .ProseMirror strong { font-weight: 680; }
.rt-root .ProseMirror u { text-underline-offset: 3px; }
.rt-root .ProseMirror s { color: var(--label-3); }
.rt-root .ProseMirror code {
  padding: 1px 5px;
  border-radius: 4px;
  background: var(--fill-3);
  color: color-mix(in srgb, var(--label) 82%, var(--brand));
  font: 500 0.9em/1.5 var(--font-mono);
}
.rt-root .ProseMirror pre {
  margin: 0 0 14px;
  padding: 13px 16px;
  border: 1px solid var(--separator);
  border-radius: 10px;
  background: color-mix(in srgb, var(--canvas) 70%, var(--bg-elevated));
  overflow-x: auto;
}
.rt-root .ProseMirror pre code {
  padding: 0;
  background: none;
  color: var(--label);
  font: 500 12.5px/1.7 var(--font-mono);
}
.rt-root .ProseMirror ul,
.rt-root .ProseMirror ol { margin: 0 0 12px; padding-left: 24px; }
.rt-root .ProseMirror li { margin: 3px 0; }
.rt-root .ProseMirror li > p { margin: 0; }
.rt-root .ProseMirror blockquote {
  margin: 0 0 14px;
  padding: 3px 0 3px 14px;
  border-left: 3px solid var(--separator-strong);
  color: var(--label-2);
}
.rt-root .ProseMirror hr {
  margin: 22px 0;
  border: 0;
  border-top: 1px solid var(--separator-strong);
}
.rt-root .ProseMirror a { color: var(--brand); text-decoration: underline; text-underline-offset: 2px; }
.rt-root .ProseMirror img {
  display: block;
  max-width: 100%;
  margin: 10px 0;
  border-radius: 10px;
  background: var(--fill-3);
}
.rt-root .ProseMirror table {
  width: 100%;
  margin: 0 0 14px;
  border-collapse: collapse;
  table-layout: fixed;
}
.rt-root .ProseMirror th,
.rt-root .ProseMirror td {
  min-width: 60px;
  padding: 7px 9px;
  border: 1px solid var(--separator-strong);
  vertical-align: top;
  text-align: left;
}
.rt-root .ProseMirror th { background: var(--fill-3); font-weight: 600; }
.rt-root .ProseMirror .selectedCell { background: var(--brand-soft); }

/* 任务列表 */
.rt-root .ProseMirror ul[data-type="taskList"] {
  padding-left: 3px;
  list-style: none;
}
.rt-root .ProseMirror ul[data-type="taskList"] li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}
.rt-root .ProseMirror ul[data-type="taskList"] li > label {
  flex: none;
  margin-top: 6px;
  user-select: none;
}
.rt-root .ProseMirror ul[data-type="taskList"] input[type="checkbox"] {
  width: 14px;
  height: 14px;
  margin: 0;
  accent-color: var(--brand);
}
.rt-root .ProseMirror ul[data-type="taskList"] li > div { flex: 1; min-width: 0; }

/* 占位提示 */
.rt-root .ProseMirror p.is-editor-empty:first-child::before {
  content: attr(data-placeholder);
  float: left;
  height: 0;
  color: var(--label-4);
  pointer-events: none;
}

/* ---------- slash / @ 菜单 ---------- */
.rt-menu {
  position: fixed;
  z-index: 130;
  width: 300px;
  padding: 7px;
  border: 1px solid var(--separator-strong);
  border-radius: var(--r-md);
  background: var(--bg-elevated);
  box-shadow: var(--shadow-3);
}
.rt-menu-title {
  margin: 4px 8px 6px;
  font: 600 10.5px/1 var(--font);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--label-3);
}
.rt-menu-list { max-height: 320px; overflow-y: auto; }
.rt-menu-item {
  display: flex;
  align-items: center;
  gap: 9px;
  width: 100%;
  padding: 7px 8px;
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: var(--label);
  font: 500 12.5px/1.2 var(--font);
  text-align: left;
  cursor: pointer;
}
.rt-menu-item.is-hi { background: var(--hover); }
.rt-ico {
  flex: none;
  width: 24px;
  text-align: center;
  font: 700 11px/1 var(--font-mono);
}
.rt-ico-img {
  flex: none;
  width: 24px;
  height: 24px;
  border-radius: 6px;
  object-fit: cover;
  background: var(--fill-3);
}
.rt-item-label { flex: 1; }
.rt-item-kind { color: var(--label-3); font: 400 10.5px/1 var(--font); }
.rt-menu-empty { margin: 8px; color: var(--label-3); font: 400 12px/1.5 var(--font); }
.rt-menu-foot {
  margin: 7px 8px 2px;
  padding-top: 7px;
  border-top: 1px solid var(--separator);
  color: var(--label-4);
  font: 400 10.5px/1.3 var(--font);
}

/* 选中文本时的浮动格式栏 */
.rt-fmtbar {
  position: fixed;
  z-index: 130;
  display: flex;
  gap: 2px;
  padding: 4px;
  border: 1px solid var(--separator-strong);
  border-radius: 9px;
  background: var(--bg-elevated);
  box-shadow: var(--shadow-2);
}
.rt-fmtbar button {
  min-width: 26px;
  height: 26px;
  padding: 0 5px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--label-2);
  font: 600 12px/1 var(--font);
  cursor: pointer;
}
.rt-fmtbar button:hover { background: var(--hover); color: var(--label); }
.rt-fmtbar button.is-on { background: var(--brand-soft); color: var(--brand); }

/* ---------- 底部 ---------- */
.te-foot {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: none;
  height: 58px;
  padding: 0 16px 0 18px;
  border-top: 1px solid var(--separator);
  background: var(--bg-elevated);
}
.te-zoom {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 3px;
  border: 1px solid var(--separator);
  border-radius: var(--r-full);
}
.te-zoom-btn,
.te-zoom-val {
  height: 26px;
  min-width: 32px;
  padding: 0 8px;
  border: 0;
  border-radius: var(--r-full);
  background: transparent;
  color: var(--label-2);
  font: 600 11.5px/1 var(--font);
  cursor: pointer;
}
.te-zoom-btn:hover,
.te-zoom-val:hover { background: var(--hover); color: var(--label); }
.te-zoom-val { min-width: 52px; color: var(--label); }
.te-foot-spacer { flex: 1; }
.te-save {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--label-3);
  font: 500 11.5px/1 var(--font);
  white-space: nowrap;
}
.te-save-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--label-4);
}
.te-save.is-saved .te-save-dot { background: var(--green); }
.te-save.is-saving .te-save-dot,
.te-save.is-dirty .te-save-dot {
  background: var(--yellow);
  animation: te-save-pulse 1.1s ease-in-out infinite;
}
.te-save.is-error { color: var(--red); }
.te-save.is-error .te-save-dot { background: var(--red); }
@keyframes te-save-pulse { 50% { opacity: 0.35; } }
.te-foot-btn { height: 32px; padding: 0 15px; font-size: 12.5px; }

/* ---------- 节点中的只读 markdown ---------- */
.nd-text { min-height: 120px; cursor: text; }
.nd-edit-hint {
  color: var(--label-4);
  font: 500 10.5px/1.2 var(--font);
}
.nd-foot .nd-edit-hint { margin-left: auto; }
.nd-text-empty .nd-edit-hint { margin: 12px 0 0; }
.md-task-list { list-style: none; padding-left: 0; }
.md-task-item { display: flex; align-items: flex-start; gap: 6px; }
.md-task-item input[type="checkbox"] { margin: 3px 0 0; accent-color: var(--brand); }

@media (max-width: 720px) {
  .te-overlay { padding: 0; }
  .te-modal { width: 100vw; height: 100dvh; border-radius: 0; border: 0; }
  .te-paper { width: calc(100% - 36px); }
  .te-head-label { display: none; }
}