:root {
  /* Linework — clear, quiet, canvas-first */
  color-scheme: light;
  --brand: #1d1d1f;
  --accent: #0071e3;
  --accent-press: #0077ed;
  --accent-deep: #0058b0;
  --accent-soft: rgba(0, 113, 227, 0.08);
  --accent-tint: #f0f6fc;
  --green: var(--accent);
  --green-mid: var(--accent-deep);
  --green-light: var(--accent-tint);
  --ink: #1d1d1f;
  --muted: #86868b;
  --label: #6e6e73;
  --border: rgba(0, 0, 0, 0.06);
  --border-strong: rgba(0, 0, 0, 0.1);
  --paper: #ffffff;
  --canvas: #ffffff;
  --surface: #ffffff;
  --header: #ffffff;
  --fill: #f5f5f7;
  --fill-hover: #ebebed;
  --danger: #ff3b30;
  --success: #34c759;
  --connect: #007aff;
  --warn: #ff9f0a;
  --shadow: none;
  --shadow-lift: 0 8px 28px rgba(0, 0, 0, 0.12);
  --radius: 8px;
  --radius-sm: 6px;
  --ctrl-h: 28px;
  --sidebar-w: 220px;
  --inspector-w: 260px;
  --chrome-pad: 12px;
  --mono: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  --ui: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'SF Pro Display', 'Segoe UI', 'Helvetica Neue', sans-serif;
  --cell-w: 8.4px;
  --cell-h: 20px;
  --font-size: 14px;
  --grid-spacing: 10;
  --focus: #0071e3;
  font-family: var(--ui);
  color: var(--ink);
  background: #ffffff;
  font-synthesis: none;
  -webkit-font-smoothing: antialiased;
  letter-spacing: -0.011em;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body { margin: 0; display: flex; flex-direction: column; overflow: hidden; }
button, input, textarea, select { font: inherit; }
button, a, input, textarea, select { -webkit-tap-highlight-color: transparent; }
button {
  cursor: pointer;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: transparent;
  color: inherit;
  font-size: 13px;
  min-height: var(--ctrl-h);
  transition: background .12s, color .12s;
}
button:hover { background: var(--fill); }
button:disabled { opacity: .35; cursor: not-allowed; }
button:focus-visible,
a:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
summary:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}
[hidden] { display: none !important; }
input, textarea, select { color: inherit; }
a { color: inherit; text-decoration: none; }

.skip-link {
  position: absolute;
  left: 12px;
  top: 8px;
  z-index: 80;
  padding: 8px 12px;
  background: var(--ink);
  color: #fff;
  border-radius: 6px;
  transform: translateY(-120%);
}
.skip-link:focus { transform: none; }

.app-header {
  flex-shrink: 0;
  min-height: 48px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--border);
  background: var(--header);
  padding: 0 16px;
  gap: 16px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  color: var(--brand);
  flex-shrink: 0;
}
.brand-mark {
  position: relative;
  width: 22px;
  height: 22px;
  background: var(--ink);
  color: #fff;
  border-radius: 6px;
  flex-shrink: 0;
  overflow: hidden;
}
.brand-mark::after { display: none; }
.brand-mark-l {
  display: grid;
  place-items: center;
  width: 100%;
  height: 100%;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: -0.04em;
  line-height: 1;
}
.brand-name {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1;
}
.brand-text, .brand-caption { display: none; }

.document-title {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  min-width: 0;
  justify-content: center;
}
.document-icon { display: none; }
.document-title input {
  background: transparent;
  border: 0;
  flex: 0 1 320px;
  width: auto;
  min-width: 120px;
  max-width: 100%;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.02em;
  text-align: center;
  padding: 4px 8px;
  border-radius: 6px;
}
.document-title input:hover,
.document-title input:focus { background: var(--fill); outline: none; }
.save-state {
  white-space: nowrap;
  font-size: 11px;
  color: var(--muted);
  background: transparent;
  border-radius: 0;
  padding: 0;
  flex-shrink: 0;
}
.save-state[data-state="saved"] { color: var(--muted); background: transparent; }
.save-state[data-state="saving"] { color: var(--label); background: transparent; }
.save-state[data-state="error"] { color: var(--danger); background: transparent; }
.header-actions {
  display: flex;
  gap: 2px;
  align-items: center;
  white-space: nowrap;
}
.quiet {
  padding: 5px 10px;
  font-weight: 400;
  border-radius: 6px;
  font-size: 13px;
  color: var(--label);
}
.quiet:hover { background: var(--fill); color: var(--ink); }
.primary {
  background: var(--ink);
  color: #fff;
  border-color: transparent;
  padding: 5px 14px;
  border-radius: 980px;
  font-weight: 500;
  min-height: var(--ctrl-h);
  font-size: 13px;
}
.primary:hover { background: #000; }

.workspace {
  display: grid;
  grid-template-columns: var(--sidebar-w) minmax(260px, 1fr) var(--inspector-w);
  flex: 1;
  min-height: 0;
  transition: grid-template-columns .2s ease;
}
.workspace.left-collapsed { grid-template-columns: 0 minmax(260px, 1fr) var(--inspector-w); }
.workspace.right-collapsed { grid-template-columns: var(--sidebar-w) minmax(260px, 1fr) 0; }
.workspace.left-collapsed.right-collapsed { grid-template-columns: 0 minmax(260px, 1fr) 0; }
.workspace.left-collapsed .left-sidebar,
.workspace.right-collapsed .right-sidebar {
  padding: 0;
  border: 0;
  overflow: hidden;
}
.left-sidebar,
.right-sidebar {
  padding: 12px 12px 16px;
  display: flex;
  flex-direction: column;
  overflow: auto;
  background: var(--surface);
}
.left-sidebar { border-right: 1px solid var(--border); }
.right-sidebar {
  border-left: 1px solid var(--border);
  gap: 12px;
}
.sidebar-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: -0.01em;
  text-transform: none;
  color: var(--ink);
  margin-bottom: 10px;
}
.sidebar-heading span { display: none; }
.sidebar-heading span {
  color: var(--muted);
  font-weight: 500;
  letter-spacing: 0;
}
.mode-switch {
  display: flex;
  padding: 2px;
  background: var(--fill);
  border-radius: 8px;
  gap: 2px;
  margin-bottom: 8px;
}
.mode-switch button {
  flex: 1;
  padding: 5px 6px;
  font-size: 12px;
  font-weight: 600;
  border-radius: 6px;
  color: var(--label);
  min-height: var(--ctrl-h);
}
.mode-switch button.active {
  background: var(--paper);
  box-shadow: 0 0 0 1px var(--border-strong);
  color: var(--ink);
}
.mode-switch button.needs-restore {
  color: #9a6700;
  background: rgba(255, 204, 0, 0.18);
}
.mode-switch button.needs-restore:hover { background: rgba(255, 204, 0, 0.28); }
section h2 {
  font-size: 12px;
  margin: 0 0 10px;
  font-weight: 650;
  display: flex;
  justify-content: space-between;
}
.section-hint {
  font-size: 9px;
  letter-spacing: 1px;
  font-weight: 500;
  color: var(--muted);
}
.collapsible { border: 0; margin-bottom: 8px; padding: 0; }
.collapsible summary {
  list-style: none;
  cursor: pointer;
  font-size: 11px;
  font-weight: 650;
  margin: 0 0 6px;
  display: flex;
  align-items: center;
  gap: 6px;
  user-select: none;
  border-radius: 4px;
}
.collapsible summary::-webkit-details-marker { display: none; }
.collapsible summary::before {
  content: '▸';
  font-size: 9px;
  color: var(--muted);
  transition: transform .15s;
  flex-shrink: 0;
}
.collapsible[open] summary::before { transform: rotate(90deg); }
.collapsible:not([open]) summary { margin-bottom: 0; }
.collapsible summary:hover { color: var(--green); }
.collapsible summary:hover::before { color: var(--green); }
.tool-group { margin-bottom: 8px; }
.tool-group:last-child { margin-bottom: 0; }
.tool-group-label {
  margin: 0 0 4px 2px;
  font-size: 9px;
  font-weight: 650;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}
.tool-group-annotate {
  padding: 0;
  border-radius: 0;
  background: transparent;
  border: 0;
  border-top: 1px solid var(--border);
  padding-top: 8px;
  margin-top: 4px;
}
.tools {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 3px;
  margin-bottom: 0;
  padding: 0;
  background: transparent;
  border-radius: 0;
}
.tools-annotate { grid-template-columns: 1fr 1fr; }
.tools:last-child { margin-bottom: 0; }
.tool {
  display: flex;
  align-items: center;
  text-align: left;
  padding: 8px 10px;
  gap: 10px;
  font-size: 13px;
  min-height: 36px;
}
.tools .tool {
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1px;
  padding: 4px 2px;
  min-height: 40px;
  text-align: center;
  border-radius: 8px;
  border: 1px solid transparent;
  color: var(--ink);
}
.tools .tool:hover {
  background: var(--fill);
  border-color: transparent;
  box-shadow: none;
}
.tool.active {
  background: var(--fill);
  color: var(--ink);
  font-weight: 600;
}
.tools .tool.active {
  background: var(--fill);
  border-color: transparent;
  box-shadow: inset 0 0 0 1.5px var(--ink);
  color: var(--ink);
}
.tool[draggable="true"],
.style-switch button[draggable="true"] { cursor: grab; }
.tool.dragging-source,
.style-switch button.dragging-source { opacity: 0.5; cursor: grabbing; }
.tool-icon {
  width: 18px;
  font-family: var(--mono);
  font-size: 18px;
  line-height: 20px;
  font-weight: 400;
}
.tools .tool-icon { width: auto; font-size: 15px; line-height: 1; }
.tool-name { font-size: 10px; font-weight: 650; line-height: 1.15; }
.tool kbd {
  margin-left: auto;
  font-size: 10px;
  font-family: inherit;
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 1px 5px;
  font-weight: 400;
  background: var(--fill);
}
.tools .tool kbd { display: none; }
.tools .tool:focus-visible { outline-offset: -2px; }
.style-switch {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}
.style-switch button {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1px;
  padding: 4px 2px;
  border-radius: 0;
  color: var(--label);
  font-size: 9px;
  min-height: 36px;
}
.style-switch button span {
  font-family: var(--mono);
  font-size: 15px;
  line-height: 16px;
}
.style-switch .active { background: var(--fill); color: var(--ink); font-weight: 600; }
.small { font-size: 10px; line-height: 1.4; }
.style-hint { margin: 6px 0 0; }
.muted { color: var(--muted); }
.templates {
  border-top: 1px solid var(--border);
  margin-top: 10px;
  padding-top: 10px;
}
.template-lede {
  margin: 0 0 6px;
  font-size: 11px;
  line-height: 1.35;
  color: var(--label);
}
.template-tabs {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 2px;
  margin-bottom: 8px;
  padding: 2px;
  background: var(--fill);
  border-radius: 8px;
}
.template-tabs button {
  min-width: 0;
  min-height: 24px;
  padding: 3px 2px;
  font-size: 10px;
  font-weight: 600;
  border-radius: 6px;
  border: 0;
  background: transparent;
  color: var(--label);
}
.template-tabs button:hover { background: rgba(0,0,0,.04); }
.template-tabs button.active,
.template-tabs button[aria-selected="true"] {
  background: var(--paper);
  color: var(--ink);
  box-shadow: 0 0 0 1px var(--border-strong);
}
.template-panels { display: flex; flex-direction: column; gap: 6px; }
.template-panel {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.template-card {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 6px 8px;
  margin: 0;
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  text-align: left;
  min-height: 0;
  transition: background .15s, border-color .15s, box-shadow .15s;
}
.template-card:hover {
  background: var(--fill);
  border-color: var(--border-strong);
}
.template-card.active {
  background: var(--fill);
  border-color: var(--ink);
  box-shadow: none;
}
.template-art {
  font-family: var(--mono);
  color: var(--accent-press);
  line-height: 1.05;
  font-size: 10px;
  width: 34px;
  min-height: 28px;
  flex-shrink: 0;
  white-space: pre;
  display: grid;
  place-content: center;
  text-align: center;
  padding: 4px 2px;
  border-radius: 8px;
  background: var(--fill);
  border: 1px solid var(--border);
}
.template-card.active .template-art {
  border-color: rgba(0, 113, 227, 0.25);
  background: var(--paper);
  color: var(--accent);
}
.template-copy {
  min-width: 0;
  flex: 1;
}
.template-card strong {
  font-size: 11px;
  font-weight: 650;
  display: block;
  letter-spacing: -.15px;
  color: var(--ink);
}
.template-card small {
  font-size: 10px;
  color: var(--label);
  display: block;
  margin-top: 2px;
  line-height: 1.35;
}
.template-blank {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 100%;
  margin-top: 6px;
  padding: 6px 8px;
  font-size: 11px;
  font-weight: 550;
  color: var(--label);
  border: 1px dashed var(--border-strong);
  border-radius: 10px;
  background: transparent;
}
.template-blank:hover {
  background: var(--fill);
  border-style: solid;
}
.template-blank span { font-size: 14px; color: var(--green); }
.template-link { display: none; }
.sidebar-bottom {
  margin-top: auto;
  padding: 8px 0 0;
  font-size: 11px;
  color: var(--muted);
  background: transparent;
  border: 0;
  border-top: 1px solid var(--border);
  border-radius: 0;
}
.sidebar-bottom p { display: none; }
.local-dot { display: none; }

.main-panel {
  min-width: 0;
  display: flex;
  flex-direction: column;
  background: var(--canvas);
  overflow: hidden;
}
.canvas-toolbar {
  min-height: 40px;
  height: auto;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px 12px;
  flex-wrap: nowrap;
  padding: 0 12px;
  background: var(--paper);
  overflow-x: auto;
}
.toolbar-context {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1;
  min-width: 0;
}
.tool-chip,
.breadcrumb {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: -0.02em;
  text-transform: none;
  color: var(--ink);
  background: transparent;
  border-radius: 0;
  padding: 0;
  white-space: nowrap;
}
.tool-chip.connecting {
  background: transparent;
  color: var(--accent);
}
.toolbar-hint {
  flex: 1;
  min-width: 0;
  margin: 0;
  font-size: 11px;
  color: var(--label);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.canvas-actions { display: flex; align-items: center; gap: 1px; margin-left: auto; padding: 0; background: transparent; border-radius: 0; flex-shrink: 0; }
.canvas-actions button {
  font-size: 13px;
  line-height: 1;
  width: 28px;
  min-height: 28px;
  border-radius: 6px;
  color: var(--label);
}
.canvas-actions button:hover { background: var(--fill); color: var(--ink); box-shadow: none; }
.canvas-actions .compact-action { width: auto; padding: 0 8px; font-size: 12px; font-weight: 500; }
.divider { height: 12px; width: 1px; background: var(--border-strong); margin: 0 3px; opacity: .7; }
.grid-toggle {
  font-size: 11px;
  display: flex;
  align-items: center;
  gap: 4px;
  color: var(--label);
  margin-right: 4px;
}
.grid-toggle input { width: 12px; height: 12px; accent-color: var(--green); }
#zoom, #grid-spacing {
  font-size: 11px;
  background: var(--paper);
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  padding: 2px 6px;
  color: var(--ink);
  min-height: 26px;
}
#grid-spacing { width: 40px; margin-right: 4px; }
.eyebrow { font-size: 10px; font-weight: 650; letter-spacing: 1.4px; color: var(--muted); }
.canvas-scroll {
  margin: 0;
  flex: 1;
  overflow: auto;
  border: 0;
  border-radius: 0;
  background: var(--paper);
  box-shadow: none;
  position: relative;
  min-height: 160px;
}
.paper {
  position: relative;
  min-width: 100%;
  min-height: 100%;
  padding: 35px 25px 40px 49px;
  width: max-content;
  background: var(--paper);
}
.ruler {
  position: absolute;
  top: 0;
  left: 49px;
  height: 27px;
  white-space: pre;
  line-height: 27px !important;
  font-size: var(--font-size) !important;
  color: var(--muted);
  letter-spacing: 0;
  border-bottom: 1px solid var(--border);
  background-image: linear-gradient(to right, rgba(0,0,0,.14) 1px, transparent 1px);
  background-size: calc(var(--cell-w) * var(--grid-spacing)) 100%;
  background-repeat: repeat-x;
}
.line-numbers {
  position: absolute;
  left: 0;
  top: 35px;
  width: 34px;
  text-align: right;
  color: var(--muted);
  font-size: 10px !important;
  padding-right: 4px;
  white-space: pre;
  background-image: linear-gradient(to bottom, rgba(0,0,0,.14) 1px, transparent 1px);
  background-size: 100% calc(var(--cell-h) * var(--grid-spacing));
  background-repeat: repeat-y;
}
.drawing-surface {
  position: relative;
  touch-action: none;
  outline-offset: 4px;
  user-select: none;
  background-image:
    linear-gradient(to right, rgba(0,0,0,.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0,0,0,.06) 1px, transparent 1px),
    radial-gradient(circle at center, rgba(0,0,0,.08) .7px, transparent .8px);
  background-size:
    calc(var(--cell-w) * var(--grid-spacing)) 100%,
    100% calc(var(--cell-h) * var(--grid-spacing)),
    var(--cell-w) var(--cell-h);
  background-position:
    0 0,
    0 0,
    calc(var(--cell-w) / 2) calc(var(--cell-h) / 2);
  cursor: default;
}
.drawing-surface.no-grid { background-image: none; }
.drawing-surface[data-tool="box"],
.drawing-surface[data-tool="decision"],
.drawing-surface[data-tool="io"],
.drawing-surface[data-tool="note"],
.drawing-surface[data-tool="terminator"],
.drawing-surface[data-tool="database"],
.drawing-surface[data-tool="stage"],
.drawing-surface[data-tool="actor"],
.drawing-surface[data-tool="cloud"],
.drawing-surface[data-tool="object"],
.drawing-surface[data-tool="document"],
.drawing-surface[data-tool="queue"],
.drawing-surface[data-tool="server"],
.drawing-surface[data-tool="entity"],
.drawing-surface[data-tool="participant"],
.drawing-surface[data-tool="folder"],
.drawing-surface[data-tool="delay"],
.drawing-surface[data-tool="display"],
.drawing-surface[data-tool="subprocess"],
.drawing-surface[data-tool="hexagon"],
.drawing-surface[data-tool="api"],
.drawing-surface[data-tool="module"],
.drawing-surface[data-tool="table"],
.drawing-surface[data-tool="form"],
.drawing-surface[data-tool="report"],
.drawing-surface[data-tool="integration"],
.drawing-surface[data-tool="warehouse"],
.drawing-surface[data-tool="connector"],
.drawing-surface[data-tool="sketch"] { cursor: crosshair; }
.drawing-surface[data-tool="marker"] { cursor: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'%3E%3Cpath d='M2 14l1-4 9-9 3 3-9 9z' fill='%230071e3'/%3E%3C/svg%3E") 2 14, crosshair; }
.drawing-surface[data-tool="marker"] #shape-layer,
.drawing-surface[data-tool="sketch"] #shape-layer { pointer-events: none; }
.mark-layer, .stroke-preview {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  overflow: visible;
  z-index: 3;
}
.mark-layer path {
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  opacity: 0.72;
}
.stroke-preview path {
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  opacity: 0.85;
}
.marker-colors {
  display: inline-flex;
  gap: 4px;
  align-items: center;
  margin: 0 2px;
}
.marker-swatch {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid transparent;
  padding: 0;
  box-shadow: inset 0 0 0 1px rgba(0,0,0,.15);
}
.marker-swatch[data-marker-color="olive"] { background: #0071e3; }
.marker-swatch[data-marker-color="amber"] { background: #ff9f0a; }
.marker-swatch[data-marker-color="rose"] { background: #ff453a; }
.marker-swatch[data-marker-color="ink"] { background: #1d1d1f; }
.marker-swatch.active, .marker-swatch[aria-pressed="true"] {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px #fff, inset 0 0 0 1px rgba(0,0,0,.1);
}
.drawing-surface[data-connecting="true"] { cursor: pointer; }
.drawing-surface.drop-target {
  box-shadow: inset 0 0 0 2px var(--accent);
}
.drawing-surface.drop-target.drop-style {
  box-shadow: inset 0 0 0 2px var(--connect);
}
pre, #text-editor, .ruler, .line-numbers {
  font-family: var(--mono);
  font-variant-ligatures: none;
  line-height: var(--cell-h);
  font-size: var(--font-size);
  font-weight: 400;
  letter-spacing: 0;
  tab-size: 4;
}
#diagram-output { margin: 0; pointer-events: none; color: #1d1d1f; white-space: pre; }
#shape-layer { position: absolute; inset: 0; }
.shape-hit {
  position: absolute;
  padding: 0;
  border-radius: 3px;
  border: 1px solid transparent;
  background: transparent;
  cursor: inherit;
  min-height: 0;
}
.shape-hit:hover { background: rgba(0,113,227,.06); border: 1px dashed rgba(0,113,227,.35); }
.shape-hit.selected {
  border: 1px solid var(--accent);
  background: rgba(0,113,227,.08);
  box-shadow: 0 0 0 3px rgba(0,113,227,.12);
}
.shape-hit.selected:after { display: none; }
.shape-hit:has(.resize-handle), .shape-hit:has(.connect-arrow) { overflow: visible; }
.shape-hit.locked { border-style: dashed; }
.shape-hit.locked:hover { background: rgba(0,0,0,.04); border-color: var(--muted); }
.shape-hit.connect-source {
  border: 2px solid #ff9f0a;
  background: rgba(255,159,10,.12);
  box-shadow: 0 0 0 4px rgba(255,159,10,.12);
}
.drawing-surface[data-tool="connector"] .shape-hit:not(.connect-source):hover,
.shape-hit.connect-target {
  cursor: pointer;
  border: 2px solid var(--connect);
  background: rgba(0,122,255,.14);
  box-shadow: 0 0 0 4px rgba(0,122,255,.12);
}
.resize-handle {
  position: absolute;
  width: 11px;
  height: 11px;
  border: 2px solid var(--paper);
  border-radius: 3px;
  background: var(--accent);
  pointer-events: auto;
  box-shadow: 0 1px 2px rgba(0,0,0,.12);
}
.resize-nw { left: -6px; top: -6px; cursor: nwse-resize; }
.resize-n { left: 50%; top: -6px; margin-left: -5.5px; cursor: ns-resize; }
.resize-ne { right: -6px; top: -6px; cursor: nesw-resize; }
.resize-e { right: -6px; top: 50%; margin-top: -5.5px; cursor: ew-resize; }
.resize-se { right: -6px; bottom: -6px; cursor: nwse-resize; }
.resize-s { left: 50%; bottom: -6px; margin-left: -5.5px; cursor: ns-resize; }
.resize-sw { left: -6px; bottom: -6px; cursor: nesw-resize; }
.resize-w { left: -6px; top: 50%; margin-top: -5.5px; cursor: ew-resize; }
.connect-arrow {
  position: absolute;
  width: 15px;
  height: 15px;
  background: var(--connect);
  border: 2px solid var(--paper);
  border-radius: 50%;
  cursor: crosshair;
  pointer-events: auto;
  opacity: .8;
}
.connect-arrow:hover { opacity: 1; }
.connect-arrow-n { left: 50%; top: -19px; margin-left: -7.5px; }
.connect-arrow-s { left: 50%; bottom: -19px; margin-left: -7.5px; }
.connect-arrow-e { top: 50%; right: -19px; margin-top: -7.5px; }
.connect-arrow-w { top: 50%; left: -19px; margin-top: -7.5px; }
#drag-preview {
  position: absolute;
  border: 1px dashed var(--accent);
  background: rgba(0,113,227,.08);
  pointer-events: none;
}
#drag-preview.collision {
  border-color: var(--danger);
  background: rgba(255,59,48,.1);
  box-shadow: inset 0 0 0 1px rgba(255,59,48,.35);
}
.guide-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 6;
  overflow: hidden;
}
.snap-guide {
  position: absolute;
  background: var(--accent);
  opacity: .55;
  pointer-events: none;
}
.snap-guide-x { width: 1px; top: 0; bottom: 0; height: 100%; }
.snap-guide-y { height: 1px; left: 0; right: 0; width: 100%; }
.snap-guide-gap { opacity: .85; background: #ff9f0a; }
.waypoint-handle {
  position: absolute;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  border: 2px solid #fff;
  background: var(--accent);
  box-shadow: 0 0 0 1px rgba(0,113,227,.45);
  padding: 0;
  z-index: 8;
  cursor: grab;
  pointer-events: auto;
}
.waypoint-handle:hover { transform: scale(1.15); }
.waypoint-handle:active { cursor: grabbing; }
.shape-hit.dimmed { opacity: .28; }
.drawing-surface.inside-group { outline: 2px dashed rgba(0,113,227,.35); outline-offset: -2px; }
#marquee-preview {
  position: absolute;
  border: 1px dashed var(--connect);
  background: rgba(0,122,255,.12);
  pointer-events: none;
}
.shape-hit.multi-selected { outline: 2px solid rgba(0,113,227,.55); outline-offset: 2px; }
#text-editor {
  display: block;
  resize: none;
  border: 0;
  background: transparent;
  padding: 0;
  margin: 0;
  outline: none;
  white-space: pre;
  overflow: hidden;
  color: var(--ink);
  min-height: 500px;
  min-width: 600px;
}
.inline-label {
  position: absolute;
  z-index: 5;
  margin: 0;
  padding: 4px 6px;
  border: 1px solid var(--accent);
  border-radius: 6px;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--mono);
  font-size: var(--font-size);
  line-height: var(--cell-h);
  resize: none;
  overflow: hidden;
  box-shadow: 0 0 0 3px rgba(0,113,227,.16);
  white-space: pre;
}
.drawing-surface.panning { cursor: grab; }
.drawing-surface.panning.dragging { cursor: grabbing; }

.canvas-actions .compact-action.panel-hidden { color: var(--accent); font-weight: 650; }
.notice {
  font-size: 11px;
  line-height: 1.4;
  color: #6e5600;
  background: rgba(255, 204, 0, 0.14);
  border: 1px solid rgba(255, 204, 0, 0.35);
  margin: 6px 10px 0;
  padding: 6px 10px;
  border-radius: 8px;
}
.storage-notice { margin-top: 8px; margin-bottom: 0; flex-shrink: 0; }

.find-panel {
  margin: 6px 10px 0;
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--fill);
}
.find-row { display: flex; align-items: center; gap: 5px; }
.find-row + .find-row { margin-top: 5px; }
.find-row label { width: 48px; flex-shrink: 0; font-size: 11px; color: var(--label); }
.find-row input {
  flex: 1;
  min-width: 0;
  width: 100px;
  padding: 4px 7px;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  background: var(--paper);
  font-size: 12px;
  min-height: var(--ctrl-h);
}
.find-row button { padding: 3px 7px; font-size: 11px; background: var(--paper); border: 1px solid var(--border); white-space: nowrap; border-radius: 6px; min-height: var(--ctrl-h); }
#find-count { font-size: 11px; white-space: nowrap; color: var(--label); }
.find-options { gap: 14px; }
.find-options label { display: flex; align-items: center; gap: 4px; width: auto; flex-shrink: 1; }
#convert-notice #convert-text-shapes { display: block; margin-bottom: 6px; }

.status-bar {
  height: 22px;
  min-height: 22px;
  background: var(--paper);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 12px;
  color: var(--muted);
  font-family: var(--ui);
  font-size: 11px;
  gap: 6px;
}
.status-bar .save-state,
.status-bar .status-save { display: none; }
.status-bar .status-separator:first-of-type { display: none; }
.status-bar > div { display: flex; gap: 8px; align-items: center; min-width: 0; }
.status-left { flex: 1; overflow: hidden; }
.status-separator { color: var(--muted); opacity: .45; margin: 0 3px; }
.style-status {
  color: var(--label);
  letter-spacing: 0.2px;
  white-space: nowrap;
}
.status-message {
  color: var(--green-mid);
  background: var(--green-light);
  border-radius: 999px;
  padding: 2px 8px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: min(360px, 42vw);
  animation: status-in .18s ease-out;
}
.status-save { font-family: inherit; }
#object-count.has-selection { color: var(--green-mid); font-weight: 600; }
@keyframes status-in {
  from { opacity: 0; transform: translateY(2px); }
  to { opacity: 1; transform: none; }
}
.status-link {
  border: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  padding: 0;
  min-height: 0;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.right-sidebar .sidebar-heading { margin: 0; }
.empty-inspector {
  padding: 4px 0 10px;
  border-bottom: 1px solid var(--border);
}
.inspect-icon {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: var(--fill);
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 6px;
}
.empty-inspector h2 { font-size: 13px; font-weight: 650; margin: 0 0 4px; letter-spacing: -.3px; }
.empty-inspector p, .export-card p { font-size: 11px; line-height: 1.4; color: var(--label); margin: 0; }
.empty-inspector kbd {
  font-family: var(--mono);
  font-size: 10px;
  padding: 1px 4px;
  border: 1px solid var(--border-strong);
  border-radius: 4px;
  background: var(--paper);
}

#inspector {
  display: flex;
  flex-direction: column;
  gap: 0;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}
.selection-card {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 0 10px;
  margin-bottom: 10px;
  border-radius: 0;
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--border);
}
.selection-icon {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: 6px;
  background: var(--fill);
  border: 0;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--ink);
  flex-shrink: 0;
  box-shadow: none;
}
.selection-copy { min-width: 0; }
.selection-type {
  font-size: 12px;
  letter-spacing: -.2px;
  color: var(--ink);
  font-weight: 650;
  line-height: 1.2;
}
.selection-meta {
  margin-top: 2px;
  font-size: 10px;
  color: var(--label);
  font-family: var(--mono);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.field-label,
#inspector > label.field-label {
  display: block;
  font-size: 10px;
  font-weight: 650;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--label);
  margin-bottom: 4px;
}
#inspector label { display: block; font-size: 10px; color: var(--label); margin-bottom: 0; font-weight: 550; }
#inspector textarea,
#inspector input,
#inspector select {
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  background: var(--paper);
  width: 100%;
  padding: 5px 7px;
  font-size: 12px;
  min-height: var(--ctrl-h);
}
#inspector textarea { resize: vertical; line-height: 1.4; margin-bottom: 6px; min-height: 48px; }
#inspector select { display: block; margin-top: 3px; }
.geometry-block { margin: 2px 0 8px; }
.geometry-heading {
  font-size: 10px;
  font-weight: 650;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--label);
  margin-bottom: 5px;
}
.field-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.field-grid label { display: flex; flex-direction: column; gap: 3px; }
.field-grid input,
.field-grid select { margin-top: 0; }
.label-format { display: flex; gap: 3px; margin: 0 0 8px; }
.label-format button {
  width: 28px;
  min-height: 26px;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  font-size: 12px;
  background: var(--paper);
}
.label-format button[aria-pressed="true"] { background: var(--fill); border-color: var(--ink); color: var(--ink); }
.checkbox-field {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--label);
  margin: 8px 0;
}
.checkbox-field input { width: 14px; height: 14px; accent-color: var(--green); margin: 0; }
.inspector-actions {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 4px;
}
.inspector-actions.row {
  flex-direction: row;
  flex-wrap: wrap;
  align-items: stretch;
}
.inspector-actions.row .apply-button {
  flex: 1 1 100%;
  margin-top: 0;
}
.inspector-actions.row .secondary-action,
.inspector-actions.row .delete-button {
  flex: 1 1 calc(50% - 3px);
  width: auto;
}
.apply-button {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 6px;
  width: 100%;
  background: var(--ink);
  color: #fff;
  border-color: transparent;
  padding: 6px 10px;
  margin-top: 0;
  font-size: 13px;
  font-weight: 500;
  border-radius: 980px;
  min-height: var(--ctrl-h);
}
.apply-button:hover { background: #000; }
.secondary-action {
  width: 100%;
  margin-top: 0;
  padding: 5px 8px;
  font-size: 11px;
  font-weight: 550;
  border: 1px solid var(--border-strong);
  background: var(--fill);
  border-radius: 7px;
  min-height: var(--ctrl-h);
}
.secondary-action:hover { background: var(--accent-tint); }
.delete-button {
  font-size: 11px;
  font-weight: 550;
  color: var(--danger);
  width: 100%;
  padding: 5px 8px;
  border-radius: 7px;
  border: 1px solid transparent;
  min-height: var(--ctrl-h);
}
.delete-button:hover { background: rgba(255,59,48,.08); border-color: rgba(255,59,48,.2); }
.inspector-hint {
  margin: 6px 0 0;
  font-size: 10px;
  line-height: 1.4;
  color: var(--muted);
}

.outline-section {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 0;
}
.outline-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
}
.outline-search-label {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.outline-search {
  width: 100%;
  margin: 0 0 6px;
  padding: 4px 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--paper);
  font-size: 11px;
  min-height: var(--ctrl-h);
}
.outline-search:focus {
  outline: none;
  box-shadow: inset 0 0 0 1px var(--accent);
  border-color: rgba(0, 113, 227, 0.35);
}
.align-toolbar {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 3px;
  margin: 0 0 6px;
}
.align-toolbar[aria-label="Distribute selection"] {
  grid-template-columns: 1fr 1fr;
}
.align-toolbar button {
  min-height: 26px;
  padding: 2px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--paper);
  font-size: 11px;
  font-weight: 550;
}
.align-toolbar button:hover { background: var(--fill); border-color: var(--border-strong); }
.stamp-fields { margin: 0 0 8px; }
.stamp-row {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}
.stamp-chip {
  min-height: 24px;
  padding: 2px 7px;
  border: 1px solid var(--border);
  border-radius: 980px;
  background: var(--paper);
  font-size: 10px;
  font-weight: 550;
  color: var(--label);
}
.stamp-chip:hover { background: var(--fill); }
.stamp-chip.active,
.stamp-chip[aria-pressed="true"] {
  background: var(--fill);
  border-color: var(--ink);
  color: var(--ink);
}
.outline-heading h2 {
  margin: 0;
  font-size: 11px;
  font-weight: 650;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--label);
}
.outline-count {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
}
.outline {
  display: flex;
  flex-direction: column;
  gap: 3px;
  flex: 1;
  max-height: none;
  overflow: auto;
  padding-right: 2px;
}
.outline button {
  font-size: 11px;
  display: flex;
  text-align: left;
  align-items: center;
  gap: 6px;
  padding: 4px 6px;
  border-radius: 7px;
  width: 100%;
  min-height: 30px;
  border: 1px solid transparent;
}
.outline button:hover { background: var(--fill); }
.outline button.selected {
  background: var(--fill);
  border-color: transparent;
}
.outline-icon {
  color: var(--label);
  font-family: var(--mono);
  font-size: 12px;
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  display: grid;
  place-items: center;
  border-radius: 5px;
  background: var(--paper);
  border: 1px solid var(--border);
}
.outline button.selected .outline-icon {
  background: var(--paper);
  border-color: var(--border-strong);
  color: var(--green);
}
.outline-body {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 1px;
}
.outline-label {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: 550;
  color: var(--ink);
}
.outline-kind {
  font-size: 10px;
  color: var(--muted);
  letter-spacing: .02em;
}
.outline .edge-item {
  padding-left: 6px;
  min-height: 26px;
}
.outline .edge-item .outline-icon {
  width: 18px;
  height: 18px;
  font-size: 12px;
  background: transparent;
  border-color: transparent;
}
.outline .edge-item .outline-label { font-weight: 500; color: var(--label); }

.export-card {
  background: transparent;
  border: 0;
  border-top: 1px solid var(--border);
  border-radius: 0;
  padding: 10px 0 0;
  margin-top: auto;
}
.export-heading .eyebrow {
  display: block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
}
.export-card h2 {
  font-size: 13px;
  font-weight: 650;
  letter-spacing: -.2px;
  margin: 2px 0 10px;
}
.export-actions {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 6px;
}
.export-card button {
  width: 100%;
  font-size: 10px;
  font-weight: 550;
  padding: 5px 4px;
  text-align: center;
  border-radius: 6px;
  border: 1px solid var(--border-strong);
  background: var(--paper);
  min-height: var(--ctrl-h);
}
.export-card button:hover { background: #fff; border-color: var(--border-strong); }
#copy-markdown { color: var(--ink); }
#export-svg { background: var(--accent-tint); }

.toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--ink);
  color: #fff;
  padding: 8px 10px 8px 14px;
  border-radius: 980px;
  font-size: 13px;
  font-weight: 500;
  box-shadow: var(--shadow-lift);
  max-width: min(480px, 92vw);
}
.toast[data-tone="warn"] { background: var(--danger); }
#toast-dismiss {
  color: inherit;
  min-height: 28px;
  width: 28px;
  border-radius: 6px;
}
#toast-dismiss:hover { background: rgba(255,255,255,.12); }

.context-menu, .shape-picker {
  position: fixed;
  z-index: 110;
  background: rgba(255,255,255,.94);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow-lift);
  padding: 6px;
  min-width: 176px;
}
.context-menu button, .shape-picker button {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  text-align: left;
  padding: 7px 10px;
  font-size: 13px;
  border-radius: 5px;
}
.context-menu button:hover, .shape-picker button:hover { background: var(--fill); }
.context-menu button[hidden] { display: none; }
.context-menu-divider { display: block; height: 1px; background: var(--border); margin: 5px 2px; }
.context-menu-danger { color: var(--danger); }
.context-menu-danger:hover { background: rgba(255,59,48,.08); }
.shape-picker { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2px; min-width: 180px; }
.minimap {
  position: fixed;
  width: 140px;
  height: 94px;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow);
  cursor: pointer;
  overflow: hidden;
  z-index: 5;
  touch-action: none;
}
.minimap-svg { width: 100%; height: 100%; display: block; }
.minimap-shape { fill: #c7ddf8; stroke: #0071e3; stroke-width: 1.4; }
.minimap-shape.selected { fill: #ffe08a; stroke: var(--warn); }
.minimap-mark {
  fill: none;
  stroke-width: 1.2;
  stroke-linecap: round;
  stroke-linejoin: round;
  opacity: 0.75;
  pointer-events: none;
}
#minimap-viewport {
  position: absolute;
  border: 1.5px solid var(--focus);
  background: rgba(0, 113, 227, 0.12);
  pointer-events: none;
}

dialog {
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 24px;
  max-width: 450px;
  width: calc(100% - 40px);
  background: var(--paper);
  color: var(--ink);
  box-shadow: var(--shadow-lift);
}
dialog::backdrop { background: rgba(0, 0, 0, 0.28); backdrop-filter: blur(8px); }
dialog h2 { font-size: 22px; font-weight: 600; letter-spacing: -.4px; margin: 8px 0; }
dialog p { font-size: 14px; line-height: 1.6; color: var(--label); }
.dialog-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 22px; }
.dialog-actions button { padding: 8px 14px; }
.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
.layer-toggles {
  display: flex; flex-direction: column; gap: 4px; padding: 2px 4px 8px;
}
.layer-toggle {
  display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--label); cursor: pointer;
}
.layer-toggle input { accent-color: var(--accent); }
.command-palette {
  width: min(480px, calc(100vw - 32px));
  padding: 12px;
  border: 1px solid var(--border-strong);
  border-radius: 14px;
  background: var(--surface);
  box-shadow: 0 18px 48px rgba(0,0,0,.18);
}
.command-palette::backdrop { background: rgba(0,0,0,.22); backdrop-filter: blur(6px); }
#command-query {
  width: 100%;
  padding: 10px 12px;
  font-size: 15px;
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  background: var(--fill);
  color: var(--ink);
}
.command-results {
  margin-top: 8px;
  max-height: min(360px, 50dvh);
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.command-result {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  width: 100%;
  text-align: left;
  padding: 9px 10px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
  color: var(--ink);
  background: transparent;
}
.command-result:hover, .command-result.active { background: rgba(0,113,227,.1); }
.command-result kbd {
  font-size: 11px; color: var(--muted); font-weight: 500;
  border: 1px solid var(--border); border-radius: 6px; padding: 2px 6px;
}
#mermaid-dialog { max-width: 560px; }
#mermaid-input {
  width: 100%;
  margin-top: 10px;
  font-family: Consolas, Liberation Mono, monospace;
  font-size: 13px;
  line-height: 1.45;
  padding: 10px;
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  resize: vertical;
  background: var(--fill);
  color: var(--ink);
}

#projects-dialog { max-width: 720px; max-height: 85dvh; overflow: auto; }
.library-heading { display: flex; justify-content: space-between; gap: 12px; align-items: start; }
.library-heading h2 { margin: 8px 0 0; }
#projects-close, #shortcuts-close { font-size: 22px; padding: 0 8px; }
.library-actions { display: flex; flex-wrap: wrap; gap: 8px; margin: 18px 0; }
.library-actions button { padding: 8px 12px; border: 1px solid var(--border-strong); }
#projects-dialog h3 { font-size: 13px; margin-top: 22px; }
#versions-project-name { color: var(--muted); font-weight: 400; }
.project-row {
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
}
.project-row > div { flex: 1; min-width: 0; }
.project-row strong { display: block; font-size: 13px; overflow-wrap: anywhere; }
.project-row small { display: block; font-size: 11px; color: var(--muted); margin-top: 4px; }
.project-row button { border: 1px solid var(--border-strong); padding: 7px 10px; }

.export-menu { position: relative; display: flex; align-items: stretch; }
.export-menu .primary { border-radius: 980px 0 0 980px; padding-right: 12px; }
.export-chevron {
  background: var(--ink);
  color: #fff;
  border: 0;
  border-left: 1px solid rgba(255,255,255,.2);
  border-radius: 0 980px 980px 0;
  padding: 0 10px;
  font-size: 11px;
  min-height: var(--ctrl-h);
}
.export-chevron:hover { background: #000; }
.export-menu-panel {
  position: absolute;
  right: 0;
  top: calc(100% + 8px);
  z-index: 40;
  min-width: 200px;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 6px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  box-shadow: var(--shadow-lift);
}
.export-menu-panel button { width: 100%; text-align: left; padding: 10px 12px; font-size: 13px; border-radius: 10px; font-weight: 500; }
.export-menu-panel button:hover { background: var(--fill); }

.empty-canvas {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  pointer-events: none;
  background: #ffffff;
  border: 0;
  border-radius: 0;
  box-shadow: none;
  padding: 24px;
}
.empty-canvas .eyebrow {
  font-size: 10px;
  font-weight: 650;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0;
}
.empty-canvas h2 { margin: 0 0 6px; font-size: 28px; font-weight: 600; letter-spacing: -.03em; }
.empty-canvas .muted { max-width: 280px; margin: 0 0 20px; font-size: 14px; color: var(--muted); }
.empty-actions {
  pointer-events: auto;
  display: flex;
  flex-direction: column;
  gap: 6px;
  width: min(360px, 92%);
  max-height: min(58vh, 520px);
  overflow: auto;
}
.empty-section-label {
  margin: 8px 0 2px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--label);
}
.empty-section-label:first-child { margin-top: 0; }
.empty-actions .template-card { background: var(--paper); border-color: var(--border-strong); }
.empty-actions .template-art { display: none; }
.empty-actions .template-blank { margin-top: 4px; background: var(--paper); }

.mobile-only { display: none; }
.panel-backdrop {
  position: fixed;
  inset: 0;
  z-index: 45;
  background: rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(2px);
}
.panel-close { font-size: 20px; padding: 0 4px; margin-left: auto; min-height: 32px; }
.mobile-tool-rail { display: none; }
.shortcut-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; margin-top: 18px; }
.shortcut-grid h3 { font-size: 13px; margin: 0 0 10px; }
.shortcut-grid ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.shortcut-grid li { font-size: 13px; color: var(--label); display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.shortcut-grid kbd {
  font-family: var(--mono);
  font-size: 11px;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  padding: 2px 6px;
  background: var(--fill);
  color: var(--ink);
}
#shortcuts-dialog { max-width: 720px; }
.rail-label { display: none; }

@media (min-width: 1550px) {
  .workspace { grid-template-columns: 240px minmax(340px, 1fr) 280px; }
  .workspace.left-collapsed { grid-template-columns: 0 minmax(340px, 1fr) 280px; }
  .workspace.right-collapsed { grid-template-columns: 240px minmax(340px, 1fr) 0; }
  .workspace.left-collapsed.right-collapsed { grid-template-columns: 0 minmax(340px, 1fr) 0; }
}

@media (max-width: 1150px) {
  .workspace { grid-template-columns: 220px minmax(240px, 1fr) 250px; }
  .workspace.left-collapsed { grid-template-columns: 0 minmax(240px, 1fr) 250px; }
  .workspace.right-collapsed { grid-template-columns: 220px minmax(240px, 1fr) 0; }
  .workspace.left-collapsed.right-collapsed { grid-template-columns: 0 minmax(240px, 1fr) 0; }
  .brand { min-width: 110px; }
  .save-state { display: none; }
  .app-header { padding: 4px 10px; gap: 8px; }
  .toolbar-hint { display: none; }
  .canvas-scroll { margin-left: 8px; margin-right: 8px; }
}

@media (max-width: 850px) {
  .mobile-only { display: inline-flex; }
  html, body { max-width: 100%; overflow: hidden; }
  body { overflow: hidden; }
  .app-header {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    grid-template-areas: "brand title export" "actions actions actions";
    height: auto;
    min-height: 0;
    width: 100%;
    max-width: 100%;
    min-width: 0;
    overflow: hidden;
    padding: 8px 10px;
    gap: 6px 8px;
  }
  .brand { min-width: 0; grid-area: brand; align-self: center; }
  .brand-name { display: none; }
  .header-actions {
    grid-area: actions;
    justify-self: stretch;
    justify-content: space-between;
    margin-left: 0;
    gap: 2px;
    width: 100%;
    max-width: 100%;
    min-width: 0;
    overflow-x: auto;
  }
  .header-actions > *, .export-menu { flex-shrink: 0; }
  .document-title {
    display: flex !important;
    grid-area: title;
    flex: 1;
    min-width: 0;
  }
  .document-title .document-icon,
  .document-title .save-state { display: none; }
  .document-title input { width: 100% !important; max-width: none; min-width: 0; font-size: 14px; padding: 6px 4px; }
  #save-project, #open-file { display: none; }
  .export-menu { grid-area: export; align-self: center; }
  .export-menu .primary span { display: none; }
  .export-menu .primary { padding: 8px 12px; }
  .workspace {
    display: block;
    overflow: hidden;
    position: relative;
    min-width: 0;
    max-width: 100%;
  }
  .main-panel { height: 100%; min-height: 0; min-width: 0; max-width: 100%; }
  .left-sidebar, .right-sidebar {
    position: fixed;
    top: 0;
    bottom: 0;
    z-index: 50;
    width: min(340px, 88vw);
    max-width: 100%;
    padding: 18px 16px;
    background: var(--surface);
    overflow: auto;
    transition: transform .2s ease;
    display: flex;
    flex-direction: column;
    gap: 12px;
    min-height: 0;
    border: 0;
  }
  .left-sidebar { left: 0; transform: translateX(-105%); border-right: 1px solid var(--border); }
  .right-sidebar {
    right: 0;
    left: auto;
    transform: translateX(105%);
    border-left: 1px solid var(--border);
  }
  .left-sidebar.open, .right-sidebar.open { transform: translateX(0); }
  .export-actions { grid-template-columns: 1fr; }
  .export-card button { font-size: 12px; }
  .mobile-tool-rail {
    display: flex;
    gap: 4px;
    justify-content: flex-start;
    padding: 6px 8px calc(8px + env(safe-area-inset-bottom, 0px));
    border-top: 1px solid var(--border);
    background: var(--fill);
    flex-shrink: 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  .mobile-tool-rail .tool {
    flex: 0 0 auto;
    min-width: 52px;
    flex-direction: column;
    justify-content: center;
    gap: 2px;
    min-height: 48px;
    padding: 6px 8px;
    margin: 0;
    font-size: 10px;
  }
  .mobile-tool-rail .tool-icon { width: auto; font-size: 20px; }
  .rail-label { display: block; color: var(--label); font-weight: 600; }
  .rail-style-chip {
    position: sticky;
    right: 0;
    z-index: 2;
    background: var(--paper);
    border: 1px solid var(--border-strong);
    box-shadow: -10px 0 14px var(--fill);
    color: var(--accent-press);
  }
  .rail-style-chip .tool-icon { font-family: var(--mono); font-size: 14px; letter-spacing: -1px; }
  .toast { bottom: calc(72px + env(safe-area-inset-bottom, 0px)); }
  .canvas-scroll { margin: 8px 10px 8px; min-height: 140px; }
  .canvas-toolbar { padding: 6px 10px; flex-wrap: nowrap; gap: 8px; min-width: 0; max-width: 100%; overflow: hidden; }
  .toolbar-context { flex: 0 1 auto; min-width: 0; }
  .toolbar-hint { display: none; }
  .tool-chip { max-width: 46vw; overflow: hidden; text-overflow: ellipsis; }
  .canvas-actions { margin-left: auto; min-width: 0; overflow-x: auto; flex: 1; justify-content: flex-end; }
  .status-bar { padding: 0 10px; }
  .status-message { max-width: min(220px, 38vw); }
  .style-status { display: none; }
  .empty-canvas { inset: 10px; }
  body.panel-open { overflow: hidden; }
  .notice, .find-panel { margin-left: 10px; margin-right: 10px; }
}

@media (max-width: 520px) {
  .shortcut-grid { grid-template-columns: 1fr; }
  .header-actions .mobile-only { padding: 8px 6px; }
  .export-chevron { padding: 0 8px; }
  .left-sidebar, .right-sidebar { width: min(100vw - 28px, 360px); }
  .tool kbd { display: none; }
  .template-tabs button { font-size: 10px; padding: 5px 6px; }
  .template-art { width: 36px; font-size: 10px; }
  .sidebar-bottom { display: none; }
  .status-save { padding: 2px 7px; font-size: 10px; }
  .divider { display: none; }
  .grid-toggle { display: none; }
  #zoom, #shortcuts-button { display: none; }
  #grid-spacing, #toggle-left-sidebar, #toggle-right-sidebar { display: none; }
  .minimap { display: none; }
  .paper { padding-left: 36px; }
  .ruler { left: 36px; }
  .line-numbers { width: 26px; }
  .project-row { flex-wrap: wrap; }
  .project-row > div { flex-basis: 100%; }
  .find-row { flex-wrap: wrap; gap: 4px; }
  .find-row label { width: 100%; }
  #find-count { order: 5; width: 100%; }
}

#flow-layer { position: absolute; inset: 0; pointer-events: none; }
.flow-dot {
  position: absolute;
  width: 6px;
  height: 6px;
  margin: -3px 0 0 -3px;
  border-radius: 50%;
  background: var(--connect);
  animation: flow-pulse 1.4s ease-in-out infinite;
}
@keyframes flow-pulse {
  0%, 100% { opacity: .12; transform: scale(.7); }
  50% { opacity: .95; transform: scale(1); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; }
  .flow-dot { animation: none; opacity: .6; }
  .status-message { animation: none; }
}