/* ── Reset & base ────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ── Theme tokens ────────────────────────────────────────────────────── */
:root, [data-theme="dark"] {
  --bg0:      #0e0e0f;
  --bg1:      #161618;
  --bg2:      #1f1f22;
  --bg3:      #2a2a2e;
  --border:   #313136;
  --accent:   #00d4a0;
  --accent2:  #0099ff;
  --text0:    #e8e8ec;
  --text1:    #a8a8b0;
  --text2:    #606068;
  --danger:   #ff4d6a;
  --tab-active-bg: #0e0e0f;
}

[data-theme="light"] {
  --bg0:      #ffffff;
  --bg1:      #f4f4f6;
  --bg2:      #e8e8ed;
  --bg3:      #d8d8e0;
  --border:   #c8c8d0;
  --accent:   #007a5e;
  --accent2:  #0066cc;
  --text0:    #1a1a20;
  --text1:    #44444e;
  --text2:    #888890;
  --danger:   #cc2233;
  --tab-active-bg: #ffffff;
}

[data-theme="hc"] {
  --bg0:      #000000;
  --bg1:      #0a0a0a;
  --bg2:      #111111;
  --bg3:      #1a1a1a;
  --border:   #ffffff;
  --accent:   #00ff88;
  --accent2:  #00aaff;
  --text0:    #ffffff;
  --text1:    #dddddd;
  --text2:    #aaaaaa;
  --danger:   #ff3344;
  --tab-active-bg: #000000;
}

[data-theme="warm"] {
  --bg0:      #1a1510;
  --bg1:      #221c14;
  --bg2:      #2c2318;
  --bg3:      #3a2e20;
  --border:   #4a3e2c;
  --accent:   #e8a44a;
  --accent2:  #7eb8d4;
  --text0:    #f0e6d0;
  --text1:    #b8a888;
  --text2:    #706050;
  --danger:   #e05544;
  --tab-active-bg: #1a1510;
}

/* ── Layout constants ────────────────────────────────────────────────── */
:root {
  --font-ui:   'Syne', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --font-preview: 'Lora', serif;

  --topbar-h:  48px;
  --tabbar-h:  34px;
  --toolbar-h: 38px;
  --status-h:  26px;
  --radius:    3px;
}

html, body {
  height: 100%;
  overflow: hidden;
  background: var(--bg0);
  color: var(--text0);
  font-family: var(--font-ui);
  font-size: 14px;
}
.sr-only { position:absolute; width:1px; height:1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; }

#app {
  display: grid;
  grid-template-rows: var(--topbar-h) var(--tabbar-h) var(--toolbar-h) 1fr var(--status-h);
  height: 100vh;
  width: 100vw;
}

/* ── Top bar ─────────────────────────────────────────────────────────── */
#topbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 14px;
  background: var(--bg1);
  border-bottom: 1px solid var(--border);
}

#brand { display:flex; align-items:center; gap:8px; flex-shrink:0; user-select:none; }
.brand-shark { color:var(--accent); font-size:20px; animation: pulse 4s ease-in-out infinite; }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:0.5} }
.brand-name { font-weight:700; font-size:15px; letter-spacing:0.08em; text-transform:uppercase; }

#file-controls { display:flex; align-items:center; gap:5px; flex:1; }

#topbar button {
  background: var(--bg2);
  color: var(--text1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 4px 10px;
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.04em;
  height: 28px;
  cursor: pointer;
  transition: background 0.1s, color 0.1s, border-color 0.1s;
  white-space: nowrap;
}
#topbar button:hover { background:var(--bg3); color:var(--text0); border-color:var(--text2); }
#topbar button:focus-visible { outline:2px solid var(--accent); outline-offset:1px; }
#btn-save { border-color:var(--accent); color:var(--accent); }
#btn-save:hover { background:var(--accent); color:var(--bg0); }

#mode-controls { display:flex; align-items:center; gap:10px; flex-shrink:0; }

#flavor-toggle { border:none; display:flex; align-items:center; gap:8px; }
#flavor-toggle label { display:flex; align-items:center; gap:4px; font-size:12px; color:var(--text1); cursor:pointer; font-family:var(--font-mono); }
#flavor-toggle input[type="radio"] { accent-color:var(--accent); cursor:pointer; }

#view-toggle { display:flex; gap:2px; }
.view-btn {
  background:var(--bg2); color:var(--text2); border:1px solid var(--border);
  border-radius:var(--radius); padding:3px 10px; font-size:11px;
  font-family:var(--font-ui); font-weight:500; cursor:pointer;
  transition:all 0.1s; height:26px; white-space:nowrap;
}
.view-btn:hover { color:var(--text0); background:var(--bg3); }
.view-btn.active { background:var(--accent); color:var(--bg0); border-color:var(--accent); font-weight:600; }
.view-btn:focus-visible { outline:2px solid var(--accent); outline-offset:1px; }

#font-select, #theme-select {
  background: var(--bg2);
  color: var(--text0);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 3px 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  height: 26px;
  cursor: pointer;
}
#font-select:focus, #theme-select:focus { outline:2px solid var(--accent); outline-offset:0; }

/* ── Tab bar ─────────────────────────────────────────────────────────── */
#tab-bar {
  display: flex;
  align-items: flex-end;
  background: var(--bg1);
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
  scrollbar-width: none;
  padding: 0 8px;
  gap: 2px;
}
#tab-bar::-webkit-scrollbar { display:none; }

.file-tab {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 12px 0 14px;
  height: 28px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-bottom: none;
  border-radius: 3px 3px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text2);
  cursor: pointer;
  white-space: nowrap;
  flex-shrink: 0;
  transition: background 0.1s, color 0.1s;
  user-select: none;
  position: relative;
  top: 1px;
}
.file-tab:hover { background:var(--bg3); color:var(--text1); }
.file-tab.active {
  background: var(--tab-active-bg);
  color: var(--text0);
  border-color: var(--border);
  border-bottom-color: var(--tab-active-bg);
  z-index: 1;
}
.file-tab.dirty .tab-name::after { content: ' •'; color:var(--accent); }

.tab-close {
  background: none;
  border: none;
  color: var(--text2);
  cursor: pointer;
  font-size: 12px;
  line-height: 1;
  padding: 0 2px;
  border-radius: 2px;
  transition: color 0.1s;
  margin-left: 2px;
}
.tab-close:hover { color:var(--danger); }

/* ── Markdown toolbar ────────────────────────────────────────────────── */
#md-toolbar {
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 0 10px;
  background: var(--bg1);
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
  scrollbar-width: thin;
}
.tb-btn {
  background: transparent; color:var(--text1); border:1px solid transparent;
  border-radius:var(--radius); padding:3px 7px; font-family:var(--font-mono);
  font-size:11px; cursor:pointer; white-space:nowrap; height:26px;
  transition:all 0.1s; line-height:1;
}
.tb-btn:hover { background:var(--bg3); color:var(--text0); border-color:var(--border); }
.tb-btn:focus-visible { outline:2px solid var(--accent); outline-offset:1px; }
.tb-btn:active { transform:scale(0.96); }
.tb-btn--accent { color:var(--accent); border-color:var(--accent); margin-left:auto; }
.tb-btn--accent:hover, .tb-btn--accent[aria-expanded="true"] { background:var(--accent); color:var(--bg0); }
.tb-sep { display:inline-block; width:1px; height:18px; background:var(--border); margin:0 4px; flex-shrink:0; }

/* ── Workspace ───────────────────────────────────────────────────────── */
#workspace {
  display: grid;
  overflow: hidden;
  background: var(--bg0);
}
#workspace.view-split   { grid-template-columns: 1fr 4px 1fr; }
#workspace.view-code    { grid-template-columns: 1fr; }
#workspace.view-wysiwyg { grid-template-columns: 1fr; }
#workspace.view-mermaid { grid-template-columns: 1fr; }

#workspace.view-split   #pane-code    { display:flex; }
#workspace.view-split   #pane-divider { display:block; }
#workspace.view-split   #pane-preview { display:flex; }
#workspace.view-split   #mermaid-pane { display:none; }

#workspace.view-code    #pane-code    { display:flex; }
#workspace.view-code    #pane-divider { display:none; }
#workspace.view-code    #pane-preview { display:none; }
#workspace.view-code    #mermaid-pane { display:none; }

#workspace.view-wysiwyg #pane-code    { display:none; }
#workspace.view-wysiwyg #pane-divider { display:none; }
#workspace.view-wysiwyg #pane-preview { display:flex; width:100%; border-left:none; }
#workspace.view-wysiwyg #mermaid-pane { display:none; }

#workspace.view-mermaid #pane-code    { display:none; }
#workspace.view-mermaid #pane-divider { display:none; }
#workspace.view-mermaid #pane-preview { display:none; }
#workspace.view-mermaid #mermaid-pane { display:flex; }

#pane-divider {
  background: var(--border);
  cursor: col-resize;
  transition: background 0.15s;
  flex-shrink: 0;
}
#pane-divider:hover, #pane-divider.dragging { background: var(--accent); }

/* pane-preview takes full grid cell; in single-pane modes its width is constrained by JS */
#pane-preview {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--bg1);
  border-left: 1px solid var(--border);
  position: relative;
}

/* Resize handle — split view only */

#editor {
  flex:1; width:100%; height:100%;
  background:var(--bg0); color:var(--text0);
  border:none; outline:none; resize:none;
  padding:20px 24px;
  font-family:var(--font-mono); font-size:13.5px; line-height:1.75;
  tab-size:2; caret-color:var(--accent);
}
#editor::placeholder { color:var(--text2); }

#preview-content {
  flex:1; overflow-y:auto; padding:20px 32px;
  scrollbar-width:thin; scrollbar-color:var(--bg3) transparent;
}

#workspace.view-wysiwyg #preview-content {
  padding: 32px 48px;
  max-width: 100%;
}

/* ── Prose ───────────────────────────────────────────────────────────── */
.prose {
  color:var(--text0);
  font-family: var(--font-preview);
  font-size:15px; line-height:1.75;
}
.prose h1,.prose h2,.prose h3,.prose h4,.prose h5,.prose h6 {
  font-family:var(--font-preview); font-weight:700; line-height:1.25;
  margin:1.4em 0 0.5em; color:var(--text0);
}
.prose h1 { font-size:2em; border-bottom:2px solid var(--accent); padding-bottom:0.2em; }
.prose h2 { font-size:1.5em; border-bottom:1px solid var(--border); padding-bottom:0.15em; }
.prose h3 { font-size:1.2em; }
.prose p  { margin:0.75em 0; }
.prose a  { color:var(--accent2); text-decoration:underline; text-decoration-thickness:1px; }
.prose a:hover { color:var(--accent); }
.prose strong { color:var(--text0); font-weight:700; }
.prose em     { color:var(--text1); }
.prose del    { color:var(--text2); }
.prose code {
  background:var(--bg3); color:var(--accent);
  font-family:var(--font-mono); font-size:0.88em; padding:1px 5px; border-radius:3px;
}
.prose pre {
  background:var(--bg2); border:1px solid var(--border);
  border-radius:var(--radius); padding:14px 18px; overflow-x:auto; margin:1em 0;
}
.prose pre code { background:none; color:var(--text0); padding:0; font-size:13px; }
.prose blockquote {
  border-left:3px solid var(--accent); margin:1em 0; padding:2px 0 2px 16px; color:var(--text1);
}
.prose ul,.prose ol { padding-left:1.6em; margin:0.6em 0; }
.prose li { margin:0.25em 0; }
.prose table { border-collapse:collapse; width:100%; margin:1em 0; font-size:0.93em; }
.prose th { background:var(--bg3); color:var(--text0); font-weight:600; text-align:left; }
.prose th,.prose td { border:1px solid var(--border); padding:7px 12px; }
.prose tr:nth-child(even) td { background:var(--bg2); }
.prose hr { border:none; border-top:1px solid var(--border); margin:2em 0; }
.prose img { max-width:100%; border-radius:var(--radius); }
.prose .mermaid { background:var(--bg2); border:1px solid var(--border); border-radius:var(--radius); padding:16px; margin:1em 0; text-align:center; }
.prose li input[type="checkbox"] { margin-right:6px; accent-color:var(--accent); }

/* ── WYSIWYG ─────────────────────────────────────────────────────────── */
#preview-content.wysiwyg-active { cursor:text; outline:none; }
#preview-content.wysiwyg-active:focus-within { box-shadow:inset 2px 0 0 var(--accent); }
#preview-content .mermaid[contenteditable="false"] { cursor:default; opacity:0.85; position:relative; }
#preview-content .mermaid[contenteditable="false"]::after {
  content:'Mermaid — edit in code view'; position:absolute; top:6px; right:8px;
  font-family:var(--font-mono); font-size:10px; color:var(--text2); pointer-events:none;
}

/* ── Status bar ──────────────────────────────────────────────────────── */
#statusbar {
  display:flex; align-items:center; gap:16px; padding:0 14px;
  background:var(--bg1); border-top:1px solid var(--border);
  font-family:var(--font-mono); font-size:11px; color:var(--text2);
}
#status-file { color:var(--accent); font-weight:500; }
#status-mid  { display:flex; gap:12px; margin-left:auto; }
#status-msg  { color:var(--text1); }

/* ── Scrollbars ──────────────────────────────────────────────────────── */
::-webkit-scrollbar             { width:6px; height:6px; }
::-webkit-scrollbar-track       { background:transparent; }
::-webkit-scrollbar-thumb       { background:var(--bg3); border-radius:3px; }
::-webkit-scrollbar-thumb:hover { background:var(--border); }

/* ── Filter bar ──────────────────────────────────────────────────────── */
#filter-bar {
  display: none;
  flex-shrink: 0;
  background: var(--bg1);
  border-bottom: 1px solid var(--border);
}
#filter-bar.open {
  display: block;
}

#filter-bar-inner {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 5px 10px;
  flex-wrap: wrap;
}

#filter-rows {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
  min-width: 0;
}

.fb-row {
  display: flex;
  align-items: center;
  gap: 5px;
}

.fb-condition {
  background: var(--bg2);
  color: var(--text0);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2px 5px;
  font-family: var(--font-mono);
  font-size: 11px;
  height: 26px;
  cursor: pointer;
  flex-shrink: 0;
}
.fb-condition:focus { outline: 2px solid var(--accent); }

.fb-input {
  flex: 1;
  background: var(--bg0);
  color: var(--text0);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 3px 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  height: 26px;
  min-width: 120px;
}
.fb-input:focus { outline: 2px solid var(--accent); border-color: transparent; }
.fb-input.fb-input--invalid { border-color: var(--danger); }

.fb-remove {
  background: none;
  border: none;
  color: var(--text2);
  cursor: pointer;
  font-size: 14px;
  line-height: 1;
  padding: 2px 4px;
  border-radius: var(--radius);
  flex-shrink: 0;
}
.fb-remove:hover { color: var(--danger); }

#filter-controls {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
  padding-top: 1px;
}

.fb-btn {
  background: var(--bg2);
  color: var(--text1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 3px 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  height: 26px;
  cursor: pointer;
  transition: background 0.1s, color 0.1s;
}
.fb-btn:hover { background: var(--bg3); color: var(--text0); }
.fb-btn--danger { color: var(--danger); border-color: var(--danger); }
.fb-btn--danger:hover { background: var(--danger); color: var(--bg0); }

#filter-logic-wrap { display: flex; gap: 2px; }
.fb-logic {
  background: var(--bg2);
  color: var(--text2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2px 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  height: 26px;
  cursor: pointer;
  transition: all 0.1s;
}
.fb-logic.active { background: var(--accent2); color: var(--bg0); border-color: var(--accent2); }

#filter-status {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent);
  white-space: nowrap;
}

/* Editor read-only state when filter active */
#editor.filter-active {
  color: var(--text0);
  background: var(--bg0);
  cursor: default;
  caret-color: transparent;
}

/* ── Transform panel ────────────────────────────────────────────────── */
#transform-panel {
  position: fixed;
  top: calc(var(--topbar-h) + var(--tabbar-h) + var(--toolbar-h));
  right: 0;
  bottom: var(--status-h);
  width: 360px;
  background: var(--bg1);
  border-left: 1px solid var(--border);
  display: none;
  flex-direction: column;
  z-index: 100;
  box-shadow: -4px 0 20px rgba(0,0,0,0.35);
  overflow: hidden;
}
#transform-panel.is-open { display:flex; }

#tp-header { display:flex; align-items:center; gap:8px; padding:10px 12px; border-bottom:1px solid var(--border); flex-shrink:0; }
#tp-title { font-weight:700; font-size:12px; letter-spacing:0.1em; text-transform:uppercase; color:var(--accent); }
#tp-scope-label { display:flex; align-items:center; gap:5px; font-size:11px; color:var(--text1); cursor:pointer; font-family:var(--font-mono); margin-left:auto; }
#tp-scope-label input { accent-color:var(--accent); }
#tp-close { background:none; border:none; color:var(--text2); cursor:pointer; font-size:14px; padding:2px 4px; border-radius:var(--radius); transition:color 0.1s; }
#tp-close:hover { color:var(--danger); }
#tp-close:focus-visible { outline:2px solid var(--accent); }

#tp-tabs { display:flex; border-bottom:1px solid var(--border); flex-shrink:0; overflow-x:auto; scrollbar-width:none; }
#tp-tabs::-webkit-scrollbar { display:none; }
.tp-tab {
  background:none; border:none; border-bottom:2px solid transparent;
  color:var(--text2); font-family:var(--font-mono); font-size:10.5px;
  padding:8px 10px; cursor:pointer; white-space:nowrap; transition:color 0.1s, border-color 0.1s; flex-shrink:0;
}
.tp-tab:hover { color:var(--text0); }
.tp-tab.active { color:var(--accent); border-bottom-color:var(--accent); }
.tp-tab:focus-visible { outline:2px solid var(--accent); outline-offset:-2px; }

.tp-pane { flex:1; overflow-y:auto; padding:12px; scrollbar-width:thin; scrollbar-color:var(--bg3) transparent; }
.tp-pane--hidden { display:none; }

.tp-section { margin-bottom:16px; }
.tp-section-title { font-size:10px; font-weight:600; letter-spacing:0.12em; text-transform:uppercase; color:var(--text2); margin-bottom:8px; }
.tp-row { display:flex; align-items:center; gap:6px; margin-bottom:6px; }
.tp-row--actions { flex-wrap:wrap; margin-top:6px; }
.tp-label { font-family:var(--font-mono); font-size:11px; color:var(--text1); width:48px; flex-shrink:0; }
.tp-input {
  flex:1; background:var(--bg0); color:var(--text0); border:1px solid var(--border);
  border-radius:var(--radius); padding:5px 8px; font-family:var(--font-mono); font-size:12px; height:28px; min-width:0;
}
.tp-input:focus { outline:2px solid var(--accent); outline-offset:0; border-color:transparent; }
.tp-input--short { flex:0 0 72px; }
.tp-check-label { display:flex; align-items:center; gap:5px; font-size:11px; color:var(--text1); cursor:pointer; font-family:var(--font-mono); white-space:nowrap; }
.tp-check-label input { accent-color:var(--accent); }
.tp-apply {
  margin-left:auto; background:var(--bg3); color:var(--accent); border:1px solid var(--accent);
  border-radius:var(--radius); padding:4px 12px; font-family:var(--font-mono); font-size:11px;
  font-weight:500; cursor:pointer; height:26px; transition:background 0.1s, color 0.1s; white-space:nowrap;
}
.tp-apply:hover { background:var(--accent); color:var(--bg0); }
.tp-apply:focus-visible { outline:2px solid var(--accent); outline-offset:1px; }
.tp-apply--full { width:100%; margin-left:0; text-align:left; margin-bottom:6px; }
.tp-error { color:var(--danger); font-family:var(--font-mono); font-size:11px; margin-top:4px; min-height:16px; }
.tp-info  { color:var(--text1);  font-family:var(--font-mono); font-size:11px; margin-top:4px; min-height:16px; }
.tp-hint  { color:var(--text2);  font-family:var(--font-mono); font-size:10.5px; margin-top:6px; line-height:1.5; }
.cc-grid  { display:grid; grid-template-columns:1fr 1fr; gap:6px; }

/* ── Responsive ──────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  #workspace.view-split { grid-template-columns:1fr; grid-template-rows:1fr 4px 1fr; }
  #pane-divider { cursor:row-resize !important; }
  #mode-controls { gap:6px; }
  #font-select, #theme-select { display:none; }
}

/* ── Empty state ─────────────────────────────────────────────────────── */
#workspace { position: relative; }

#empty-state {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--bg0);
  z-index: 10;
  gap: 16px;
}
#empty-state[hidden] { display: none; }
#banner-img { max-width: 480px; width: 80%; opacity: 0.9; }
#empty-hint { font-family: var(--font-mono); font-size: 12px; color: var(--text2); }

/* ── Editor wrap + line numbers ──────────────────────────────────────── */
#editor-wrap {
  display: flex;
  flex: 1;
  overflow: hidden;
  position: relative;
}

#line-numbers {
  background: var(--bg1);
  border-right: 1px solid var(--border);
  color: var(--text2);
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.75;
  padding: 20px 10px 20px 6px;
  text-align: right;
  user-select: none;
  white-space: pre;
  overflow: hidden;
  min-width: 42px;
  display: none;
  flex-shrink: 0;
}
#line-numbers.visible { display: block; }

#editor {
  flex: 1;
  min-width: 0;
  height: 100%;
  background: var(--bg0);
  color: var(--text0);
  border: none;
  outline: none;
  resize: none;
  padding: 20px 24px;
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.75;
  tab-size: 2;
  caret-color: var(--accent);
}

/* Syntax-highlighted overlay mode */
#editor-wrap.hljs-active #editor {
  color: transparent;
  caret-color: var(--accent);
}
#hljs-overlay {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  padding: 20px 24px;
  font-family: var(--font-mono);
  font-size: 13.5px;
  font-weight: 400;
  font-style: normal;
  line-height: 1.75;
  pointer-events: none;
  overflow: hidden;
  white-space: pre-wrap;
  word-wrap: break-word;
  background: transparent;
  margin: 0;
}
#hljs-overlay code { background: transparent; padding: 0; font-size: inherit; font-family: var(--font-mono); }

/* The hljs theme sets font-size: 0.875em and font-family: monospace on .hljs,
   overriding the inherited values and causing the overlay to render differently
   from the textarea. Force all font metrics to match the textarea exactly. */
#hljs-overlay .hljs {
  font-size:   inherit !important;
  font-weight: inherit !important;
  font-style:  inherit !important;
  font-family: var(--font-mono) !important;
  background:  transparent !important;
  padding:     0 !important;
}
#hljs-overlay .hljs span,
#hljs-overlay code span {
  font-weight: inherit !important;
  font-style:  inherit !important;
  font-size:   inherit !important;
  font-family: inherit !important;
}

/* Left spacer in wysiwyg mode - removed, handled by pane-preview width */

/* ── Topbar label ────────────────────────────────────────────────────── */
.topbar-label { font-size: 11px; color: var(--text2); font-family: var(--font-mono); }

/* ── Status cursor ───────────────────────────────────────────────────── */
#status-cursor { color: var(--text1); }

/* ── hljs theme overrides for light/warm/hc ─────────────────────────── */
[data-theme="light"] #hljs-overlay .hljs { background: transparent; color: var(--text0); }
[data-theme="light"] .hljs-theme-link-override { display: none; }

#pane-code { overflow: hidden; flex-direction: column; }

/* ── Mermaid editor ──────────────────────────────────────────────────── */
#mermaid-pane {
  display: none;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
  background: var(--bg0);
}
#mermaid-pane.active { display: flex; }

.me-shell {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
}

.me-toolbar {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0 10px;
  background: var(--bg1);
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
  scrollbar-width: none;
  flex-shrink: 0;
  height: 38px;
}
.me-toolbar::-webkit-scrollbar { display: none; }

.me-sep {
  display: inline-block;
  width: 1px; height: 18px;
  background: var(--border);
  margin: 0 4px;
  flex-shrink: 0;
}

.me-select {
  background: var(--bg2);
  color: var(--text0);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2px 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  height: 26px;
  cursor: pointer;
}
.me-select:focus { outline: 2px solid var(--accent); }

.me-btn {
  background: var(--bg2);
  color: var(--text1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 3px 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  cursor: pointer;
  height: 26px;
  white-space: nowrap;
  transition: background 0.1s, color 0.1s;
}
.me-btn:hover { background: var(--bg3); color: var(--text0); }
.me-btn-accent { color: var(--accent); border-color: var(--accent); }
.me-btn-accent:hover { background: var(--accent); color: var(--bg0); }

.me-shapes { display: flex; gap: 2px; }
.me-shape-btn {
  background: var(--bg2);
  color: var(--text1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  width: 28px; height: 26px;
  font-size: 14px;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.1s;
}
.me-shape-btn:hover { background: var(--bg3); color: var(--text0); }
.me-shape-btn.active { background: var(--accent); color: var(--bg0); border-color: var(--accent); }

.me-edge-group { display: flex; align-items: center; gap: 5px; }
.me-label { font-family: var(--font-mono); font-size: 10px; color: var(--text2); }

.me-workspace {
  display: flex;
  flex: 1;
  overflow: hidden;
}

.me-canvas-wrap {
  flex: 1;
  overflow: hidden;
  position: relative;
  background: var(--bg0);
}

#me-svg {
  width: 100%;
  height: 100%;
  display: block;
}
#me-svg:focus { outline: none; }

.me-drop-hint {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text2);
  pointer-events: none;
}
.me-drop-hint[hidden] { display: none; }

/* Node port handles */
.me-port {
  fill: var(--accent);
  stroke: var(--bg0);
  stroke-width: 1.5;
  cursor: crosshair;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s;
}
.me-node:hover .me-port {
  opacity: 1;
  pointer-events: all;
}

/* SVG node styles */
.me-shape {
  fill: var(--bg2);
  stroke: var(--accent2);
  stroke-width: 1.5;
  transition: stroke 0.1s, fill 0.1s;
}
.me-shape.selected {
  stroke: var(--accent);
  fill: var(--bg3);
  stroke-width: 2;
}
.me-node { cursor: move; }
.me-node.selected .me-shape { stroke: var(--accent); fill: var(--bg3); }
.me-node-label {
  fill: var(--text0);
  font-family: var(--font-mono);
  font-size: 12px;
  pointer-events: none;
  user-select: none;
}
.me-edge {
  fill: none;
  stroke: var(--accent2);
  stroke-width: 1.5;
  marker-end: url(#me-arrow);
}
.me-edge.dotted { stroke-dasharray: 5 3; }
.me-edge.thick  { stroke-width: 3; }
.me-edge-label {
  fill: var(--text1);
  font-family: var(--font-mono);
  font-size: 11px;
}

/* Sidebar */
.me-sidebar {
  width: 200px;
  flex-shrink: 0;
  background: var(--bg1);
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding: 10px;
  gap: 6px;
}
.me-sidebar-title {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text2);
}
.me-prop-row {
  display: flex;
  align-items: center;
  gap: 5px;
  margin-bottom: 4px;
}
.me-prop-label {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text2);
  width: 28px;
  flex-shrink: 0;
}
.me-prop-input {
  flex: 1;
  background: var(--bg0);
  color: var(--text0);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 3px 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  height: 24px;
  min-width: 0;
}
.me-prop-input--short { flex: 0 0 46px; }
.me-prop-input:focus { outline: 2px solid var(--accent); border-color: transparent; }

.me-source-area {
  flex: 1;
  background: var(--bg0);
  color: var(--accent);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 6px 8px;
  font-family: var(--font-mono);
  font-size: 10px;
  resize: none;
  outline: none;
  line-height: 1.5;
  min-height: 120px;
}
.me-source-area:focus { border-color: var(--accent); }

.me-status {
  height: 22px;
  padding: 0 10px;
  background: var(--bg1);
  border-top: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text2);
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

/* Context menu */
.me-context-menu {
  position: fixed;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 4px 0;
  z-index: 200;
  min-width: 130px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.4);
}
.me-ctx-item {
  display: block;
  width: 100%;
  background: none;
  border: none;
  color: var(--text0);
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 5px 12px;
  text-align: left;
  cursor: pointer;
}
.me-ctx-item:hover { background: var(--bg3); }
.me-ctx-sep {
  height: 1px;
  background: var(--border);
  margin: 3px 0;
}

/* Tab badge for mermaid tabs */
.file-tab.mermaid-tab .tab-name::before {
  content: '⬡ ';
  color: var(--accent);
  font-size: 10px;
}