/* 网页编辑器 — 双栏 Markdown（无 EasyMDE） */

.doc-nav li {
  display: flex;
  align-items: center;
  gap: 4px;
}

.doc-nav li a { flex: 1; min-width: 0; }

.doc-nav .edit-actions {
  display: inline-flex;
  gap: 2px;
  flex-shrink: 0;
}

.btn-icon {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 0.75rem;
  padding: 2px 4px;
  border-radius: 4px;
  opacity: 0.55;
  transition: opacity 0.15s ease, background 0.15s ease;
}

.btn-icon:hover {
  opacity: 1;
  background: var(--primary-soft);
}

.btn-add {
  background: none;
  border: 1px dashed var(--border-strong);
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 0.8rem;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  width: 100%;
  text-align: left;
  margin-top: 8px;
}

.btn-add:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-soft);
}

.doc-nav .add-new { list-style: none; padding: 0 20px 8px; }

.doc-nav--grouped .doc-nav-top-list li {
  display: flex;
  align-items: center;
  gap: 4px;
}

.doc-nav--grouped .doc-nav-top-list li a { flex: 1; min-width: 0; }

.doc-nav--grouped .doc-nav-group-list li {
  display: flex;
  align-items: center;
  gap: 4px;
}

.doc-nav--grouped .doc-nav-group-list li a { flex: 1; min-width: 0; }

/* Password dialog */
.password-dialog-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  backdrop-filter: blur(4px);
}

.password-dialog {
  background: var(--bg-elevated);
  border-radius: var(--radius);
  padding: 2rem;
  width: 380px;
  max-width: 90vw;
  box-shadow: var(--shadow-lg);
  text-align: center;
  border: 1px solid var(--border);
}

.password-dialog h3 { margin-bottom: 0.5rem; font-size: 1.1rem; }

.password-dialog p {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-bottom: 1rem;
}

.password-dialog input[type="password"] {
  width: 100%;
  padding: 10px 14px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  background: var(--bg);
  color: var(--text);
  outline: none;
}

.password-dialog input[type="password"]:focus { border-color: var(--primary); }

.dialog-actions {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin-top: 1rem;
}

.dialog-error {
  color: #db4437;
  font-size: 0.85rem;
  margin-top: 0.75rem;
  min-height: 1.2em;
}

/* Split editor */
.doc-main:has(#doc-body.editor-active) {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  max-width: none;
  padding: 10px 12px 12px;
}

.doc-main:has(#doc-body.editor-active) .doc-toolbar {
  display: none;
}

#doc-body.editor-active {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  max-width: none;
  padding: 0;
}

.split-editor {
  flex: 1;
  min-height: 0;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 0;
  align-items: stretch;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--bg-elevated);
}

.split-editor-gutter {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 40px;
  flex-shrink: 0;
  padding: 8px 0;
  border-left: 1px solid var(--border);
  border-right: 1px solid var(--border);
  background: var(--bg);
}

.btn-align-panes {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 36px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-elevated);
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease, transform 0.1s ease;
}

.btn-align-panes:hover {
  color: var(--primary);
  border-color: var(--primary);
  background: var(--primary-soft);
}

.btn-align-panes.is-active {
  color: var(--primary);
  border-color: var(--primary);
  background: var(--primary-soft);
  transform: scale(0.94);
}

.split-editor-pane {
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
}

.split-editor-source {
  background: var(--bg-sidebar);
}

.split-editor-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  padding: 0;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.split-editor-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 10px 14px 6px;
}

.split-editor-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

#doc-source.drag-over {
  outline: 2px dashed var(--accent, #2563eb);
  outline-offset: -4px;
}

.find-bar {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 6px 12px 8px;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
}

.find-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}

.find-replace-row .find-input {
  flex: 1 1 160px;
}

.find-bar[hidden] {
  display: none !important;
}

.find-input {
  flex: 1 1 120px;
  min-width: 100px;
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-family: var(--font-mono);
  background: var(--bg-elevated);
  color: var(--text);
  outline: none;
}

.find-input:focus {
  border-color: var(--primary);
}

.find-status {
  font-size: 0.75rem;
  color: var(--text-muted);
  min-width: 3.5em;
  text-align: center;
}

.find-close {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.1rem;
  line-height: 1;
  padding: 2px 6px;
  color: var(--text-muted);
  border-radius: 4px;
}

.find-close:hover {
  color: var(--text);
  background: var(--primary-soft);
}

.split-editor-preview-wrap .split-editor-label {
  padding: 10px 14px 6px;
}

#doc-source {
  flex: 1;
  width: 100%;
  min-height: 0;
  padding: 12px 16px 20px;
  border: none;
  resize: none;
  outline: none;
  overflow: auto;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--text);
  background: transparent;
  tab-size: 2;
}

.split-editor-preview-wrap {
  display: flex;
  flex-direction: column;
  min-height: 0;
  background: var(--bg-elevated);
}

.preview-scroll {
  flex: 1;
  min-height: 0;
  overflow: auto;
}

#doc-preview {
  padding: 8px 20px 32px;
}

.katex-error { color: var(--text-muted) !important; }

@media (max-width: 900px) {
  .split-editor {
    grid-template-columns: 1fr;
    grid-template-rows: 1fr auto 1fr;
  }
  .split-editor-gutter {
    flex-direction: row;
    width: auto;
    height: 40px;
    padding: 0 8px;
    border-left: none;
    border-right: none;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
  }
  .btn-align-panes {
    width: 36px;
    height: 28px;
  }
  .split-editor-source { border-bottom: none; }
}