:root {
  --bg: #1e1e2e;
  --bg2: #181825;
  --panel: #252539;
  --panel-2: #2d2d44;
  --border: #383854;
  --text: #cdd6f4;
  --text-dim: #94a3b8;
  --accent: #89b4fa;
  --accent-2: #a6e3a1;
  --warn: #f9e2af;
  --err: #f38ba8;
  --pin: #fab387;
  --shadow: 0 4px 12px rgba(0,0,0,0.35);
  --radius: 6px;
  --font: -apple-system, "Segoe UI", "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", system-ui, sans-serif;
  --mono: "Cascadia Code", "Consolas", "JetBrains Mono", monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; overflow: hidden; font-family: var(--font); color: var(--text); background: var(--bg); user-select: none; }

#app { display: flex; flex-direction: column; height: 100vh; }

/* Topbar */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px 12px; background: var(--bg2); border-bottom: 1px solid var(--border);
  gap: 12px;
}
.brand { display: flex; align-items: center; gap: 8px; font-weight: 600; }
.logo { font-size: 20px; }
.title { font-size: 14px; color: var(--accent); }

.topbar-actions { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }

.btn {
  background: var(--panel); color: var(--text); border: 1px solid var(--border);
  padding: 6px 12px; border-radius: var(--radius); cursor: pointer;
  font-size: 12px; transition: all 0.15s;
}
.btn:hover { background: var(--panel-2); border-color: var(--accent); }
.btn.primary { background: var(--accent); color: #000; border-color: var(--accent); font-weight: 600; }
.btn.primary:hover { background: #b4befe; }
.btn.icon { width: 28px; padding: 6px 0; text-align: center; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.sep { width: 1px; height: 20px; background: var(--border); margin: 0 4px; }

select, input[type="text"], input[type="password"], textarea {
  background: var(--panel); color: var(--text); border: 1px solid var(--border);
  padding: 5px 8px; border-radius: var(--radius); font-size: 12px;
  font-family: var(--font);
}
select:focus, input:focus, textarea:focus { outline: none; border-color: var(--accent); }

.select-wrap { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--text-dim); }

/* Workspace */
.workspace {
  display: grid;
  grid-template-columns: 240px 1fr 280px;
  grid-template-rows: minmax(0, 1fr);
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

/* Palette */
.palette {
  background: var(--bg2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
}
.palette-tabs { display: flex; border-bottom: 1px solid var(--border); }
.palette-tabs .tab {
  flex: 1; background: transparent; border: none; color: var(--text-dim);
  padding: 8px; font-size: 12px; cursor: pointer; border-bottom: 2px solid transparent;
}
.palette-tabs .tab.active { color: var(--accent); border-bottom-color: var(--accent); }
.palette-search { padding: 8px; }
.palette-search input { width: 100%; }
.palette-list { flex: 1; overflow-y: auto; padding: 4px; }
.palette-item {
  display: flex; align-items: center; gap: 8px; padding: 8px;
  background: var(--panel); border: 1px solid var(--border);
  border-radius: var(--radius); margin-bottom: 4px;
  cursor: grab; font-size: 12px; transition: all 0.15s;
}
.palette-item:hover { border-color: var(--accent); background: var(--panel-2); }
.palette-item:active { cursor: grabbing; }
.palette-item .icon { font-size: 18px; width: 24px; text-align: center; }
.palette-item .name { flex: 1; }
.palette-cat { font-size: 11px; color: var(--text-dim); padding: 6px 8px; text-transform: uppercase; letter-spacing: 0.5px; margin-top: 4px; }

/* Canvas */
.canvas-host {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  background: var(--bg);
}
.canvas-tabs { display: flex; background: var(--bg2); border-bottom: 1px solid var(--border); }
.canvas-tabs .ctab {
  background: transparent; border: none; color: var(--text-dim);
  padding: 8px 16px; font-size: 12px; cursor: pointer;
  border-bottom: 2px solid transparent;
}
.canvas-tabs .ctab.active { color: var(--accent); border-bottom-color: var(--accent); }
.canvas-stage { flex: 1; position: relative; overflow: hidden; }
.view-pane { position: absolute; inset: 0; overflow: auto; }
.view-pane.hidden { display: none; }

/* Circuit canvas */
#view-circuit { background:
  radial-gradient(circle, var(--border) 1px, transparent 1px) 0 0/20px 20px,
  var(--bg);
  cursor: crosshair;
  position: relative;
}
.circuit-svg { width: 100%; height: 100%; position: absolute; inset: 0; pointer-events: none; }
.circuit-component {
  position: absolute; min-width: 80px; padding: 4px;
  background: transparent; border: 1px solid transparent;
  border-radius: var(--radius); cursor: move; user-select: none;
  pointer-events: auto;
  font-size: 11px;
}
.circuit-component.selected { border-color: var(--accent); background: rgba(120,170,255,0.08); box-shadow: 0 0 0 2px var(--accent); }
.circuit-component .glyph { font-size: 28px; text-align: center; }
.circuit-component .svg-art {
  display: block; width: 100%; height: calc(100% - 14px);
  pointer-events: none; user-select: none; -webkit-user-drag: none;
}
.circuit-component .svg-art svg, .circuit-component img.svg-art { width: 100%; height: 100%; display: block; }
.circuit-component .label { text-align: center; color: var(--text-dim); margin-top: 2px; font-size: 10px; }
.circuit-component .pins { position: absolute; inset: 0; pointer-events: none; }
.circuit-component .pin {
  position: absolute; width: 10px; height: 10px;
  background: var(--pin); border-radius: 50%;
  transform: translate(-50%, -50%); cursor: crosshair; pointer-events: auto;
  border: 2px solid var(--bg2);
}
.circuit-component .pin:hover { background: var(--accent); transform: translate(-50%, -50%) scale(1.4); }
.circuit-component .pin.connected { background: var(--accent-2); }
.circuit-component .pin-label { position: absolute; font-size: 9px; color: var(--text-dim); pointer-events: none; }

/* Wires */
.wire-path { stroke: var(--accent-2); stroke-width: 2; fill: none; pointer-events: stroke; cursor: pointer; stroke-linecap: round; stroke-linejoin: round; }
.wire-path:hover { stroke: var(--accent); stroke-width: 3; }
.wire-path.preview { stroke-dasharray: 4 4; stroke: var(--warn); }

/* Block editor */
#view-blocks { padding: 16px; background: var(--bg2); }
.block {
  display: inline-block;
  filter: drop-shadow(0 2px 2px rgba(0,0,0,0.35));
  cursor: pointer;
}
svg.block-svg { display: block; overflow: visible; }
.block-stack {
  display: flex; flex-direction: column; align-items: flex-start;
  padding: 8px; min-height: 60px; border: 2px dashed var(--border);
  border-radius: var(--radius); margin-bottom: 8px; background: rgba(0,0,0,0.2);
}
.block-stack.dragover { border-color: var(--accent); background: rgba(137,180,250,0.1); }
.block-row { display: flex; align-items: center; gap: 4px; margin-top: -4px; padding-left: 16px; }
.block-row:first-child { margin-top: 0; }
.block-row[data-depth="0"] { padding-left: 0; }

/* Code view */
#view-code { padding: 0; background: #11111b; }
#code-output { margin: 0; padding: 16px; font-family: var(--mono); font-size: 13px; color: var(--text); white-space: pre; user-select: text; }

/* Simulator */
#view-sim { padding: 16px; background: var(--bg2); }
.sim-pane { display: grid; grid-template-columns: 1fr 320px; gap: 16px; height: 100%; }
.sim-stage { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); position: relative; min-height: 400px; overflow: hidden; }
.sim-controls { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 12px; }
.sim-led { position: absolute; width: 24px; height: 24px; border-radius: 50%; background: #444; border: 2px solid #666; transition: all 0.15s; box-shadow: inset 0 0 4px #000; }
.sim-led.on { background: #ff5555; box-shadow: 0 0 14px #ff5555, inset 0 0 4px #fff; }
.sim-output { font-family: var(--mono); font-size: 12px; color: var(--text-dim); margin-top: 12px; max-height: 200px; overflow-y: auto; background: #11111b; padding: 8px; border-radius: var(--radius); }

/* Inspector */
.inspector {
  background: var(--bg2);
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
}
.inspector-header { padding: 10px 12px; border-bottom: 1px solid var(--border); font-weight: 600; font-size: 13px; }
.inspector-body { flex: 1; overflow-y: auto; padding: 12px; font-size: 12px; }
.inspector-body label { display: block; color: var(--text-dim); margin-top: 8px; font-size: 11px; }
.inspector-body input, .inspector-body select { width: 100%; margin-top: 4px; }

/* Statusbar */
.statusbar {
  background: var(--bg2); border-top: 1px solid var(--border);
  padding: 4px 12px; font-size: 11px; color: var(--text-dim);
  display: flex; align-items: center; gap: 12px;
}
.spacer { flex: 1; }

/* Tooltip */
.tooltip {
  position: fixed; background: var(--panel-2); border: 1px solid var(--accent);
  color: var(--text); padding: 8px 12px; border-radius: var(--radius);
  font-size: 12px; max-width: 300px; pointer-events: none; z-index: 9999;
  box-shadow: var(--shadow); opacity: 0; transition: opacity 0.15s;
  white-space: pre-wrap;
}
.tooltip.show { opacity: 1; }

/* Modal */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(0,0,0,0.6); z-index: 1000;
}
.modal {
  position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: 540px; max-width: 90vw; max-height: 80vh; overflow: auto;
  background: var(--panel); border: 1px solid var(--border);
  border-radius: 8px; z-index: 1001; box-shadow: var(--shadow);
}
.modal-head {
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 16px; border-bottom: 1px solid var(--border);
  font-weight: 600;
}
.modal-head .close {
  background: transparent; color: var(--text-dim); border: none;
  font-size: 22px; cursor: pointer; line-height: 1;
}
.modal-body { padding: 16px; }
.modal-body label { display: block; color: var(--text-dim); margin-top: 12px; font-size: 11px; }
.modal-body input, .modal-body select, .modal-body textarea { width: 100%; margin-top: 4px; }
.modal-body .row { display: flex; gap: 8px; margin-top: 12px; }
.ai-out { background: #11111b; padding: 12px; border-radius: var(--radius); font-family: var(--mono); font-size: 12px; color: var(--text); max-height: 220px; overflow: auto; white-space: pre-wrap; margin-top: 12px; }


/* Manual modal */
.modal.manual-modal {
  width: min(960px, 95vw);
  height: min(720px, 90vh);
  display: flex;
  flex-direction: column;
}
.modal.manual-modal .modal-body {
  flex: 1;
  min-height: 0;
  padding: 0;
  overflow: hidden;
}
.manual-root {
  display: grid;
  grid-template-columns: 240px 1fr;
  height: 100%;
  min-height: 0;
}
.manual-toc {
  background: var(--bg2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
}
.manual-search {
  margin: 8px;
  padding: 6px 8px;
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 12px;
}
.manual-toc-list { flex: 1; overflow-y: auto; padding: 4px; }
.manual-group { margin-bottom: 8px; }
.manual-group-title {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--text-dim);
  padding: 6px 10px 2px;
}
.manual-toc-item {
  display: block;
  width: 100%;
  text-align: left;
  background: transparent;
  border: 1px solid transparent;
  color: var(--text);
  padding: 6px 10px;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 12px;
  transition: background 0.15s;
}
.manual-toc-item:hover { background: var(--panel); }
.manual-toc-item.active { background: var(--panel-2); border-color: var(--accent); color: var(--accent); }
.manual-content {
  padding: 20px 28px;
  overflow-y: auto;
  font-size: 13px;
  line-height: 1.6;
}
.manual-content h1 { color: var(--accent); font-size: 22px; margin: 0 0 4px; }
.manual-content h2 { color: var(--text); font-size: 16px; margin: 18px 0 6px; border-bottom: 1px solid var(--border); padding-bottom: 4px; }
.manual-content h3 { color: var(--text); font-size: 13px; margin: 14px 0 4px; }
.manual-group-tag { color: var(--text-dim); font-size: 11px; margin-bottom: 16px; }
.manual-body p { margin: 8px 0; }
.manual-body ul { margin: 8px 0 8px 18px; padding: 0; }
.manual-body li { margin: 3px 0; }
.manual-body code.md-code {
  background: #11111b; padding: 2px 5px; border-radius: 3px;
  font-family: var(--mono); font-size: 12px; color: var(--accent-2);
}
.manual-body pre.md-pre {
  background: #11111b; padding: 12px; border-radius: 6px; overflow-x: auto;
  font-family: var(--mono); font-size: 12px; color: var(--text);
  margin: 10px 0; user-select: text;
}


/* CPU debug inspector */
.dbg-inspector { font-family: var(--mono); font-size: 11px; padding: 8px; }
.dbg-row { display: flex; gap: 14px; padding: 4px 0; }
.dbg-summary { background: var(--panel); padding: 6px 10px; border-radius: var(--radius); margin-bottom: 8px; }
.dbg-summary code { color: var(--accent-2); font-weight: 600; }
.dbg-section { margin-top: 10px; }
.dbg-h { color: var(--text-dim); font-size: 10px; text-transform: uppercase; letter-spacing: 0.6px; margin-bottom: 4px; }
table.dbg-grid { border-collapse: collapse; }
table.dbg-grid td { padding: 2px 6px; border: 1px solid var(--border); white-space: nowrap; }
.dbg-reg-name { color: var(--text-dim); margin-right: 4px; }
table.dbg-grid code { color: var(--accent); }
.dbg-flags { display: flex; gap: 4px; }
.dbg-flag { padding: 3px 8px; background: var(--panel); border: 1px solid var(--border); border-radius: 3px; color: var(--text-dim); font-weight: 600; }
.dbg-flag.on { background: var(--accent); color: #000; border-color: var(--accent); }
.dbg-mem-controls { margin: 4px 0; font-size: 10px; }
.dbg-mem-controls input { width: 80px; font-family: var(--mono); }
.dbg-mem { background: #11111b; padding: 8px; border-radius: 4px; max-height: 200px; overflow: auto; user-select: text; font-size: 10px; line-height: 1.4; }


/* Recent files menu */
.recents-menu {
  position: fixed; z-index: 2000;
  background: var(--panel); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow);
  min-width: 280px; max-width: 480px; padding: 4px;
}
.recents-empty { padding: 12px; color: var(--text-dim); font-size: 12px; }
.recents-item {
  display: block; width: 100%; text-align: left;
  background: transparent; border: none; color: var(--text);
  padding: 6px 10px; cursor: pointer; border-radius: 3px; font-size: 12px;
}
.recents-item:hover { background: var(--panel-2); }
.recents-name { font-weight: 600; }
.recents-path {
  display: block; font-size: 10px; color: var(--text-dim);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.recents-clear { color: var(--err); border-top: 1px solid var(--border); margin-top: 4px; }

/* Multi-window button */
.btn-newwin { font-size: 16px; padding: 4px 8px; }


/* Multi-tabs */
.vmcu-tabs {
  display: flex; align-items: center; gap: 2px;
  background: var(--bg2); border-bottom: 1px solid var(--border);
  padding: 4px 8px 0; min-height: 32px; overflow-x: auto;
}
.vmcu-tab {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 10px; background: var(--panel);
  border: 1px solid var(--border); border-bottom: none;
  border-radius: 4px 4px 0 0; cursor: pointer;
  font-size: 12px; color: var(--text-dim);
  white-space: nowrap; max-width: 220px;
  transition: background 0.15s;
}
.vmcu-tab:hover { background: var(--panel-2); }
.vmcu-tab.active { background: var(--bg); color: var(--accent); border-color: var(--accent); border-bottom: 1px solid var(--bg); margin-bottom: -1px; }
.vmcu-tab-name { overflow: hidden; text-overflow: ellipsis; max-width: 180px; }
.vmcu-tab-close {
  background: transparent; border: none; color: var(--text-dim);
  cursor: pointer; padding: 0 4px; font-size: 14px; line-height: 1;
}
.vmcu-tab-close:hover { color: var(--err); }
.vmcu-tab-add { color: var(--text-dim); font-weight: 700; padding: 6px 10px; }


/* Live block highlighting during sim */
.block-row.block-active svg.block-svg,
.block-row.block-active .block {
  filter: drop-shadow(0 0 8px var(--accent)) drop-shadow(0 0 12px var(--accent));
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 6px;
  animation: block-pulse 0.6s ease-in-out infinite alternate;
}
@keyframes block-pulse {
  from { filter: drop-shadow(0 0 4px var(--accent)); }
  to   { filter: drop-shadow(0 0 14px var(--accent)) drop-shadow(0 0 20px var(--accent)); }
}

/* Sensor sliders panel */
.sensor-slider {
  background: var(--panel); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 8px; margin-bottom: 8px;
  font-size: 12px;
}
.sensor-slider .ss-head { display: flex; gap: 8px; align-items: center; margin-bottom: 4px; }
.sensor-slider .ss-id { color: var(--text-dim); font-size: 10px; flex: 1; }
.sensor-slider .ss-val { color: var(--accent-2); font-family: var(--mono); }
.sensor-slider input[type=range] { width: 100%; }
.sensor-slider .ss-press {
  width: 100%; padding: 8px; background: var(--accent); color: #000;
  font-weight: 600; cursor: pointer; user-select: none;
}
.sensor-slider .ss-press:active { background: var(--accent-2); }


/* Settings dialog */
.settings-grid { display: grid; grid-template-columns: 200px 1fr; gap: 10px 16px; align-items: center; font-size: 13px; }
.settings-grid label { color: var(--text-dim); }
.settings-grid input, .settings-grid select { width: 100%; }

/* Light theme */
html[data-theme="light"] {
  --bg: #f9f9fc;
  --bg2: #ffffff;
  --panel: #f0f0f5;
  --panel-2: #e6e6ee;
  --border: #d0d0d8;
  --text: #1c1c2a;
  --text-dim: #5a5a72;
  --accent: #0066cc;
  --accent-2: #00875a;
  --warn: #b07000;
  --err: #c01040;
  --pin: #cc6600;
  --shadow: 0 2px 8px rgba(0,0,0,0.10);
}

/* Apply --app-font-size if defined */
html { font-size: var(--app-font-size, 12px); }


/* Command palette (Ctrl+P) */
.cmd-palette-backdrop { position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 5000; display: flex; justify-content: center; padding-top: 80px; }
.cmd-palette { width: min(640px, 90vw); max-height: 60vh; background: var(--panel); border: 1px solid var(--accent); border-radius: 8px; box-shadow: var(--shadow); display: flex; flex-direction: column; overflow: hidden; }
.cmd-input { background: var(--bg2); color: var(--text); border: none; border-bottom: 1px solid var(--border); padding: 12px 16px; font-size: 14px; outline: none; }
.cmd-list { list-style: none; margin: 0; padding: 4px; overflow-y: auto; flex: 1; }
.cmd-item { display: flex; align-items: baseline; gap: 8px; padding: 6px 10px; cursor: pointer; border-radius: 4px; font-size: 12px; }
.cmd-item:hover, .cmd-item.active { background: var(--panel-2); color: var(--accent); }
.cmd-group { font-size: 9px; text-transform: uppercase; letter-spacing: 0.6px; color: var(--text-dim); width: 64px; flex-shrink: 0; }
.cmd-label { flex: 1; }
.cmd-hint-text { font-size: 10px; color: var(--text-dim); max-width: 240px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.cmd-empty { padding: 16px; color: var(--text-dim); }
.cmd-hint { padding: 6px 12px; font-size: 10px; color: var(--text-dim); border-top: 1px solid var(--border); background: var(--bg2); }

/* Right-click context menu */
.ctx-menu { position: fixed; background: var(--panel); border: 1px solid var(--border); border-radius: 6px; box-shadow: var(--shadow); padding: 4px; z-index: 4000; min-width: 180px; }
.ctx-item { display: flex; align-items: center; gap: 8px; width: 100%; padding: 6px 12px; background: transparent; border: none; color: var(--text); cursor: pointer; border-radius: 3px; font-size: 12px; text-align: left; }
.ctx-item:hover:not(.disabled) { background: var(--panel-2); }
.ctx-item.danger { color: var(--err); }
.ctx-item.disabled { opacity: 0.4; cursor: not-allowed; }
.ctx-icon { width: 18px; text-align: center; }
.ctx-hint { margin-left: auto; font-size: 10px; color: var(--text-dim); }
.ctx-divider { height: 1px; background: var(--border); margin: 4px 0; }

/* Wire pulse animation during sim */
.wire-path.pulsing {
  stroke-dasharray: 4 6;
  stroke-width: 3;
  animation: wire-pulse 0.6s linear infinite;
}
@keyframes wire-pulse {
  from { stroke-dashoffset: 10; }
  to { stroke-dashoffset: 0; }
}


/* Multi-selection */
.circuit-component.selected-multi {
  outline: 2px dashed var(--accent-2);
  outline-offset: 2px;
}


/* High-contrast theme (WCAG AAA) */
html[data-theme="high-contrast"] {
  --bg: #000;
  --bg2: #000;
  --panel: #1a1a1a;
  --panel-2: #2a2a2a;
  --border: #ffffff;
  --text: #ffffff;
  --text-dim: #d0d0d0;
  --accent: #ffff00;
  --accent-2: #00ffff;
  --warn: #ffaa00;
  --err: #ff5555;
  --pin: #ff8800;
  --shadow: 0 0 0 2px #ffffff;
}
html[data-theme="high-contrast"] * { font-weight: 500; }

/* Colorblind-safe (deuteranopia/protanopia) */
html[data-theme="colorblind"] {
  --bg: #1a1a1a;
  --bg2: #0e0e0e;
  --panel: #2a2a35;
  --panel-2: #353545;
  --border: #525266;
  --text: #f0f0f0;
  --text-dim: #b0b0b0;
  --accent: #377eb8;     /* blue — safe */
  --accent-2: #ffff33;    /* yellow — safe */
  --warn: #ff7f00;       /* orange — distinct from red for CVD */
  --err: #984ea3;        /* purple — replace red */
  --pin: #ff7f00;
  --shadow: 0 4px 12px rgba(0,0,0,0.5);
}
html[data-theme="colorblind"] .wire-path.wire-power { stroke: #ff7f00; }
html[data-theme="colorblind"] .wire-path.wire-gnd { stroke: #525266; }
html[data-theme="colorblind"] .wire-path.wire-i2c { stroke: #ffff33; }
html[data-theme="colorblind"] .wire-path.wire-spi { stroke: #984ea3; }
html[data-theme="colorblind"] .wire-path.wire-signal { stroke: #377eb8; }

/* Pin-suggest popup */
.pin-suggest-popup {
  position: fixed;
  z-index: 4500;
  background: var(--panel);
  border: 1px solid var(--accent);
  border-radius: 4px;
  box-shadow: var(--shadow);
  max-height: 300px;
  overflow-y: auto;
  min-width: 180px;
}
.pin-suggest-item {
  display: flex; align-items: center; gap: 8px; width: 100%;
  background: transparent; border: none; color: var(--text);
  padding: 4px 8px; cursor: pointer; text-align: left; font-size: 11px;
}
.pin-suggest-item:hover { background: var(--panel-2); }
.pin-suggest-id { font-family: var(--mono); font-weight: 600; min-width: 56px; color: var(--accent); }
.pin-suggest-hint { color: var(--text-dim); font-size: 10px; }

/* History view */
.hist-root { display: grid; grid-template-columns: 280px 1fr; height: 100%; min-height: 0; }
.hist-list { background: var(--bg2); border-right: 1px solid var(--border); overflow-y: auto; padding: 4px; }
.hist-item {
  display: block; width: 100%; text-align: left; padding: 8px 12px;
  background: transparent; border: 1px solid transparent; color: var(--text);
  border-radius: 4px; cursor: pointer; margin-bottom: 2px;
}
.hist-item:hover { background: var(--panel); }
.hist-item.active { background: var(--panel-2); border-color: var(--accent); }
.hist-item.hist-named .hist-name { color: var(--accent-2); font-weight: 600; }
.hist-item.hist-auto .hist-name { color: var(--text-dim); font-size: 11px; }
.hist-meta { font-size: 10px; color: var(--text-dim); margin-top: 2px; }
.hist-detail { padding: 20px; overflow-y: auto; font-size: 13px; line-height: 1.6; }
.hist-detail h3 { margin: 0 0 4px; color: var(--accent); }
.hist-summary { width: 100%; font-size: 12px; margin: 16px 0; }
.hist-summary td { padding: 4px 8px; }
.hist-summary tr:nth-child(odd) { background: var(--panel); }
.hist-actions { margin-top: 16px; display: flex; gap: 8px; }

/* Shortcuts editor */
.sc-list { display: flex; flex-direction: column; gap: 4px; max-height: 480px; overflow-y: auto; }
.sc-row { display: grid; grid-template-columns: 1fr auto auto; align-items: center; gap: 8px; padding: 6px 8px; border-radius: 4px; }
.sc-row:hover { background: var(--panel); }
.sc-desc { font-size: 12px; }
.sc-binding {
  background: var(--panel-2); color: var(--accent-2); border: 1px solid var(--border);
  font-family: var(--mono); font-size: 11px; padding: 4px 10px; border-radius: 3px; cursor: pointer;
  min-width: 100px;
}
.sc-binding.custom { color: var(--accent); border-color: var(--accent); }
.sc-binding.listening { background: var(--accent); color: #000; }
.sc-reset { background: transparent; border: none; color: var(--text-dim); cursor: pointer; padding: 4px 8px; }

.hidden { display: none !important; }
.muted { color: var(--text-dim); font-style: italic; }

/* Scope view */
.scope-pane { display: flex; flex-direction: column; height: 100%; }
.scope-toolbar {
  display: flex; align-items: center; gap: 8px;
  padding: 8px; background: #1a1a2a; border-bottom: 1px solid var(--border);
}
.scope-canvas {
  flex: 1; width: 100%; background: #181825;
  cursor: crosshair; display: block;
}

/* Scrollbars */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg2); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* Tutorial / lesson overlay */
#lesson-overlay { position: fixed; inset: 0; z-index: 1500; pointer-events: none; }
#lesson-overlay.hidden { display: none; }
#lesson-overlay .lesson-dim {
  position: absolute; inset: 0;
  background: rgba(10, 10, 20, 0.55);
  pointer-events: auto;
}
#lesson-overlay .lesson-ring {
  position: absolute;
  border: 3px solid #f9e2af;
  border-radius: 8px;
  box-shadow: 0 0 0 9999px rgba(10, 10, 20, 0.55), 0 0 18px 4px rgba(249, 226, 175, 0.6);
  pointer-events: none;
  transition: top 0.18s, left 0.18s, width 0.18s, height 0.18s;
}
#lesson-overlay .lesson-balloon {
  position: absolute;
  width: 320px; max-width: calc(100vw - 24px);
  background: var(--bg2, #1e1e2e);
  color: var(--text, #cdd6f4);
  border: 1px solid var(--accent, #89b4fa);
  border-radius: 10px;
  padding: 14px 14px 10px 14px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
  pointer-events: auto;
  font-size: 13px;
  line-height: 1.45;
}
#lesson-overlay .lesson-text { margin-bottom: 10px; }
#lesson-overlay .lesson-actions {
  display: flex; gap: 8px; justify-content: flex-end;
  margin-bottom: 4px;
}
#lesson-overlay .lesson-progress {
  font-size: 11px; color: var(--text-dim, #888);
  text-align: right;
}