:root {
  color-scheme: light;
  --page: #edf2f7;
  --panel: #ffffff;
  --surface: #ffffff;
  --surface-soft: #fbfdff;
  --canvas: #dce5ee;
  --canvas-dot: #aabaca;
  --border: #d8e2ec;
  --border-strong: #cbd8e4;
  --text: #243b53;
  --heading: #102a43;
  --muted: #627d98;
  --faint: #829ab1;
  --accent: #2e6ba7;
  --accent-hover: #245886;
  --danger: #c2413d;
  --danger-soft: #fff1f0;
  --code-bg: #edf5fb;
  --selection: rgba(46, 107, 167, .22);
  --shadow: rgba(16, 42, 67, .12);
  color: var(--text);
  background: var(--page);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --page: #0f1720;
  --panel: #17212b;
  --surface: #1c2834;
  --surface-soft: #101922;
  --canvas: #0c141b;
  --canvas-dot: #344554;
  --border: #344452;
  --border-strong: #465a6b;
  --text: #d6e2ec;
  --heading: #f4f8fb;
  --muted: #a4b6c5;
  --faint: #8398aa;
  --accent: #70afe7;
  --accent-hover: #8fc3ef;
  --danger: #f28b82;
  --danger-soft: #3a2224;
  --code-bg: #223241;
  --selection: rgba(112, 175, 231, .28);
  --shadow: rgba(0, 0, 0, .38);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { min-width: 900px; min-height: 100vh; margin: 0; }
button, select, textarea { font: inherit; }
button, select { cursor: pointer; }

header {
  position: relative;
  z-index: 40;
  height: 42px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 12px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
}

nav { display: flex; align-items: center; gap: 8px; }
.global-actions { min-width: 0; flex: 1; gap: 2px; }
.toolbar-menu { position: relative; height: 30px; margin: 0; padding: 0; border: 0; }
.toolbar-menu > summary {
  display: flex;
  height: 30px;
  align-items: center;
  padding: 0 9px;
  border: 0;
  border-radius: 5px;
  color: var(--text);
  background: transparent;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}
.toolbar-menu > summary::-webkit-details-marker { display: none; }
.toolbar-menu > summary:hover, .toolbar-menu[open] > summary { color: var(--heading); background: var(--code-bg); }
.toolbar-popover { position: absolute; z-index: 50; top: calc(100% + 4px); left: 0; width: 210px; padding: 5px; border: 1px solid var(--border-strong); border-radius: 8px; background: var(--panel); box-shadow: 0 10px 28px var(--shadow); }
.toolbar-popover > strong { display: block; padding: 7px 8px 4px; color: var(--faint); font-size: 8px; letter-spacing: .12em; }
.toolbar-popover > button, .toolbar-popover > label, .toolbar-popover > a { display: flex; width: 100%; min-height: 30px; align-items: center; gap: 8px; padding: 7px 8px; border: 0; border-radius: 5px; color: var(--text); background: transparent; font-size: 11px; text-align: left; text-decoration: none; }
.toolbar-popover > button:hover, .toolbar-popover > label:hover, .toolbar-popover > a:hover { color: var(--heading); background: var(--code-bg); }
.about-menu { margin-right: 2px; padding-right: 10px; border-right: 1px solid var(--border); }
.about-menu > summary { padding-left: 2px; font-size: 13px; letter-spacing: -.01em; }
.about-version { margin: 0; padding: 5px 8px 8px; color: var(--muted); font-size: 10px; }
.about-version span { color: var(--heading); font-weight: 650; }
.menu-separator { display: block; height: 1px; margin: 5px 3px; background: var(--border); }
.toolbar-divider { width: 1px; height: 20px; margin: 0 5px; background: var(--border); }
.icon-tool { display: grid; width: 30px; height: 30px; place-items: center; padding: 0; border: 0; border-radius: 5px; color: var(--muted); background: transparent; }
.icon-tool:hover, .icon-tool:focus-visible { color: var(--heading); background: var(--code-bg); outline: none; }
.icon-tool svg, .theme-toggle svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
#cleanup-diagram svg { fill: currentColor; stroke: none; }
.theme-toggle small { margin-left: auto; color: var(--faint); font-size: 9px; font-weight: 500; text-transform: capitalize; }
.theme-toggle .theme-moon { display: none; }
:root[data-theme="dark"] .theme-toggle .theme-sun { display: none; }
:root[data-theme="dark"] .theme-toggle .theme-moon { display: inline-flex; }
.vim-toggle { justify-content: space-between; cursor: pointer; }
.vim-toggle input { margin: 0; accent-color: var(--accent); }

main { --panel-width: 430px; --layers-open-width: 230px; --layers-width: var(--layers-open-width); --graph-resizer-width: 9px; position: relative; height: calc(100vh - 42px); display: grid; grid-template-columns: var(--panel-width) 9px minmax(0, 1fr) var(--graph-resizer-width) var(--layers-width); transition: grid-template-columns .2s ease; }
main.source-collapsed { grid-template-columns: 0 0 minmax(0, 1fr) var(--graph-resizer-width) var(--layers-width); }
main.layers-collapsed { --layers-width: 0px; --graph-resizer-width: 0px; }
#source-panel { display: flex; min-height: 0; flex-direction: column; padding: 22px 20px 16px; border-right: 1px solid var(--border); background: var(--panel); }
main.source-collapsed #source-panel { visibility: hidden; overflow: hidden; padding-inline: 0; border-right: 0; pointer-events: none; }
.source-toggle {
  position: absolute;
  z-index: 7;
  top: 50%;
  left: calc(var(--panel-width) - 13px);
  width: 27px;
  height: 34px;
  padding: 0;
  border: 1px solid var(--border-strong);
  border-radius: 7px;
  color: var(--accent);
  background: var(--panel);
  box-shadow: 0 3px 10px var(--shadow);
  font-size: 20px;
  font-weight: 700;
  line-height: 1;
  translate: 0 -50%;
  transition: left .2s ease, background .12s ease;
}
.source-toggle:hover, .source-toggle:focus-visible { border-color: var(--accent); background: var(--code-bg); outline: none; }
main.source-collapsed .source-toggle { left: 8px; }
.panel-toggle .toggle-label { display: none; writing-mode: vertical-rl; rotate: 180deg; color: var(--muted); font-size: 9px; letter-spacing: .08em; text-transform: uppercase; }
main.source-collapsed .source-toggle, main.layers-collapsed .layers-toggle { width: 29px; height: 82px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px; }
main.source-collapsed .source-toggle .toggle-label, main.layers-collapsed .layers-toggle .toggle-label { display: inline; }
main.source-collapsed .source-toggle .toggle-arrow, main.layers-collapsed .layers-toggle .toggle-arrow { font-size: 17px; }
.layers-toggle {
  position: absolute;
  z-index: 7;
  top: 50%;
  right: calc(var(--layers-width) - 13px);
  width: 27px;
  height: 34px;
  padding: 0;
  border: 1px solid var(--border-strong);
  border-radius: 7px;
  color: var(--accent);
  background: var(--panel);
  box-shadow: 0 3px 10px var(--shadow);
  font-size: 20px;
  font-weight: 700;
  line-height: 1;
  translate: 0 -50%;
  transition: right .2s ease, background .12s ease;
}
.layers-toggle:hover, .layers-toggle:focus-visible { border-color: var(--accent); background: var(--code-bg); outline: none; }
main.layers-collapsed .layers-toggle { position: fixed; z-index: 30; top: calc(50vh + 35px); right: 8px; opacity: 1; background-color: var(--panel); }
.layers-panel { min-width: 0; min-height: 0; overflow-x: hidden; overflow-y: auto; padding: 14px 16px 16px; border-left: 1px solid var(--border); background: var(--panel); }
main.layers-collapsed .layers-panel { visibility: hidden; padding-inline: 0; border-left: 0; pointer-events: none; }
.layers-title small { color: var(--accent); font-size: 9px; font-weight: 800; letter-spacing: .12em; }
.layers-title h2 { margin: 2px 0 0; color: var(--heading); font-size: 17px; }
.graph-browser { margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--border); }
.graph-browser > label { display: grid; gap: 5px; color: var(--muted); font-size: 10px; font-weight: 700; }
.graph-browser select { width: 100%; min-width: 0; min-height: 31px; padding: 5px 7px; border: 1px solid var(--border); border-radius: 6px; color: var(--text); background: var(--surface); }
.graph-browser-section { margin-top: 14px; border-top: 1px solid var(--border); }
.graph-ordering { border-top: 0; }
.graph-browser-section > summary { display: flex; align-items: center; gap: 6px; padding: 10px 1px 7px; color: var(--heading); font-size: 11px; font-weight: 750; cursor: pointer; list-style: none; }
.graph-browser-section > summary::-webkit-details-marker { display: none; }
.graph-browser-section > summary::before { content: "›"; flex: 0 0 auto; color: var(--faint); font-size: 15px; font-weight: 500; line-height: 10px; transition: rotate .12s ease; }
.graph-browser-section[open] > summary::before { rotate: 90deg; }
.graph-browser-section > summary small { margin-left: auto; color: var(--faint); font: 10px Consolas, monospace; }
.graph-browser-section > p { margin: 0 0 10px; color: var(--muted); font-size: 10px; line-height: 1.45; }
.layers-list { display: grid; gap: 6px; }
.graph-item-list { display: grid; gap: 5px; }
.graph-item { display: grid; width: 100%; min-width: 0; gap: 2px; padding: 7px 8px; border: 1px solid var(--border); border-radius: 7px; color: var(--text); background: var(--surface); text-align: left; }
.graph-item:hover, .graph-item:focus-visible { border-color: var(--accent); background: var(--code-bg); outline: none; }
.graph-item strong { overflow: hidden; font-size: 10px; text-overflow: ellipsis; white-space: nowrap; }
.graph-item small { overflow: hidden; color: var(--faint); font: 9px Consolas, monospace; text-overflow: ellipsis; white-space: nowrap; }
.object-hidden .layer-name, .object-hidden .node-layer-copy, .graph-item.object-hidden strong, .graph-item.object-hidden small { text-decoration: line-through; }
.node-layer-item { grid-template-columns: 18px minmax(0, 1fr) auto; align-items: center; gap: 7px; cursor: grab; }
.node-layer-copy { display: grid; min-width: 0; gap: 2px; }
.node-layer-item.dragging { opacity: .42; }
.node-layer-item.drag-over { border-color: var(--accent); box-shadow: inset 0 2px var(--accent); }
.connection-editor button { min-height: 26px; padding: 3px 7px; border: 1px solid var(--border); border-radius: 5px; color: var(--danger); background: var(--surface); font-size: 9px; }
.layer-item { display: grid; grid-template-columns: 18px minmax(0, 1fr) auto; align-items: center; gap: 7px; width: 100%; min-width: 0; padding: 8px; border: 1px solid var(--border); border-radius: 7px; color: var(--text); background: var(--surface); text-align: left; cursor: grab; }
.layer-item:hover, .layer-item:focus-visible { border-color: var(--accent); background: var(--code-bg); outline: none; }
.layer-item.dragging { opacity: .42; }
.layer-item.drag-over { border-color: var(--accent); box-shadow: inset 0 2px var(--accent); }
.layer-grip { color: var(--faint); font-size: 13px; letter-spacing: -2px; }
.layer-name { min-width: 0; overflow: hidden; font-size: 11px; font-weight: 650; text-overflow: ellipsis; white-space: nowrap; }
.layer-number { color: var(--faint); font: 10px Consolas, monospace; }
.layers-empty { margin: 0; padding: 12px; border: 1px dashed var(--border); border-radius: 7px; color: var(--faint); font-size: 10px; text-align: center; }
.panel-resizer {
  position: relative;
  z-index: 5;
  cursor: col-resize;
  touch-action: none;
  background: var(--page);
  outline: none;
}
main.source-collapsed .panel-resizer { visibility: hidden; pointer-events: none; }
.panel-resizer::after { content: ""; position: absolute; inset: 0 3px; border-radius: 2px; background: var(--border-strong); transition: inset .12s, background .12s; }
.panel-resizer:hover::after, .panel-resizer:focus-visible::after, body.resizing-panel .panel-resizer::after { inset: 0 2px; background: var(--accent); }
.graph-panel-resizer { position: relative; z-index: 5; cursor: col-resize; touch-action: none; background: var(--page); outline: none; }
.graph-panel-resizer::after { content: ""; position: absolute; inset: 0 3px; border-radius: 2px; background: var(--border-strong); transition: inset .12s, background .12s; }
.graph-panel-resizer:hover::after, .graph-panel-resizer:focus-visible::after, body.resizing-graphs .graph-panel-resizer::after { inset: 0 2px; background: var(--accent); }
main.layers-collapsed .graph-panel-resizer { visibility: hidden; pointer-events: none; }
body.resizing-panel { cursor: col-resize; user-select: none; }
.panel-title { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.source-tabs { display: flex; gap: 2px; margin: 2px 0 8px; border-bottom: 1px solid var(--border); }
.source-tabs button { padding: 7px 11px 6px; border: 0; border-bottom: 2px solid transparent; border-radius: 5px 5px 0 0; color: var(--muted); background: transparent; font: 600 11px/1.2 Consolas, monospace; }
.source-tabs button.active { border-bottom-color: var(--accent); color: var(--heading); background: var(--surface-soft); }
.preview-title span { color: var(--accent); font-size: 9px; font-weight: 800; letter-spacing: .13em; }
h1, h2 { margin: 3px 0 0; color: var(--heading); letter-spacing: -.02em; }
h1 { font-size: 20px; }
h2 { font-size: 18px; }
.help { margin: 14px 0 10px; color: var(--muted); font-size: 11px; line-height: 1.55; }
code { padding: 2px 4px; border-radius: 3px; color: var(--accent); background: var(--code-bg); font-family: Consolas, monospace; }

.editor-shell {
  position: relative;
  width: 100%;
  flex: 1;
  min-height: 260px;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--surface-soft);
}
.editor-shell::before {
  content: "";
  position: absolute;
  z-index: 2;
  inset: 0 auto 0 0;
  width: 43px;
  pointer-events: none;
  border-right: 1px solid var(--border);
  background: var(--surface-soft);
}
.editor-shell:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px var(--selection); }
.editor-shell.source-target { animation: source-target .7s ease-out; }
@keyframes source-target {
  0% { box-shadow: 0 0 0 4px var(--accent); }
  100% { box-shadow: 0 0 0 0 transparent; }
}
.current-line {
  position: absolute;
  z-index: 0;
  right: 0;
  left: 0;
  height: 20px;
  pointer-events: none;
  background: rgba(46, 107, 167, .07);
  background: color-mix(in srgb, var(--accent) 8%, transparent);
}
.line-numbers {
  position: absolute;
  z-index: 3;
  top: 14px;
  left: 0;
  width: 43px;
  pointer-events: none;
  color: var(--faint);
  font: 10px/20px Consolas, "SFMono-Regular", monospace;
  text-align: right;
  user-select: none;
}
.line-numbers span { display: block; height: 20px; padding-right: 9px; }
.line-numbers span.active { color: var(--accent); font-weight: 800; }
.vim-block-cursor {
  position: absolute;
  z-index: 3;
  top: 0;
  left: 0;
  width: 7.23px;
  height: 20px;
  pointer-events: none;
  border-radius: 1px;
  background: rgba(46, 107, 167, .68);
  background: color-mix(in srgb, var(--accent) 68%, transparent);
}
.color-popup-trigger { width: 32px; min-height: 29px; padding: 0; overflow: hidden; border: 1px solid var(--border-strong); border-radius: 4px; background-color: #fff; background-image: linear-gradient(45deg, #d4dbe2 25%, transparent 25%), linear-gradient(-45deg, #d4dbe2 25%, transparent 25%), linear-gradient(45deg, transparent 75%, #d4dbe2 75%), linear-gradient(-45deg, transparent 75%, #d4dbe2 75%); background-position: 0 0, 0 4px, 4px -4px, -4px 0; background-size: 8px 8px; }
.inspector-color .color-popup-trigger { position: relative; }
.color-popup-trigger::after { content: ""; position: absolute; inset: 0; background: var(--swatch, #000); }
.color-popup-trigger.none::after { display: none; }
.color-picker-popup { position: fixed; z-index: 100; display: grid; width: 280px; gap: 10px; padding: 10px; border: 1px solid var(--border-strong); border-radius: 10px; background: var(--panel); box-shadow: 0 12px 32px var(--shadow); }
.color-picker-popup[hidden] { display: none; }
.color-picker-heading { display: grid; grid-template-columns: 24px auto 1fr; align-items: center; gap: 7px; min-height: 24px; }
.color-picker-heading > span { position: relative; width: 24px; height: 24px; overflow: hidden; border: 1px solid var(--border-strong); border-radius: 5px; background-color: #fff; background-image: linear-gradient(45deg, #d4dbe2 25%, transparent 25%), linear-gradient(-45deg, #d4dbe2 25%, transparent 25%), linear-gradient(45deg, transparent 75%, #d4dbe2 75%), linear-gradient(-45deg, transparent 75%, #d4dbe2 75%); background-position: 0 0, 0 6px, 6px -6px, -6px 0; background-size: 12px 12px; box-shadow: inset 0 0 0 1px rgb(255 255 255 / .18); }
.color-picker-heading > span::after { content: ""; position: absolute; inset: 0; background: var(--preview-color, transparent); }
.color-picker-heading strong { color: var(--heading); font-size: 11px; }
.color-picker-heading output { color: var(--muted); text-align: right; font: 9px Consolas, monospace; }
.color-picker-surface-wrap { position: relative; width: 260px; height: 180px; }
.color-picker-popup canvas { display: block; width: 260px; height: 180px; border-radius: 7px; cursor: crosshair; box-shadow: inset 0 0 0 1px rgb(0 0 0 / .2); touch-action: none; }
.color-picker-popup canvas:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
#color-picker-marker { position: absolute; width: 13px; height: 13px; border: 2px solid var(--marker-color, #fff); border-radius: 50%; box-shadow: 0 0 0 1px rgb(0 0 0 / .75), 0 1px 4px rgb(0 0 0 / .65); pointer-events: none; transform: translate(-50%, -50%); }
.color-picker-hue { display: grid; grid-template-columns: 24px 1fr; align-items: center; gap: 7px; color: var(--muted); font-size: 9px; }
.color-picker-hue input[type="range"] { width: 100%; height: 12px; margin: 0; border: 1px solid rgb(0 0 0 / .2); border-radius: 999px; appearance: none; background: linear-gradient(to right, #f00, #ff0, #0f0, #0ff, #00f, #f0f, #f00); }
.color-picker-hue input[type="range"]::-webkit-slider-thumb { width: 14px; height: 18px; border: 2px solid white; border-radius: 4px; appearance: none; background: transparent; box-shadow: 0 0 0 1px rgb(0 0 0 / .7), 0 1px 3px rgb(0 0 0 / .45); }
.color-picker-hue input[type="range"]::-moz-range-thumb { width: 10px; height: 14px; border: 2px solid white; border-radius: 4px; background: transparent; box-shadow: 0 0 0 1px rgb(0 0 0 / .7); }
.color-picker-alpha { display: grid; grid-template-columns: 46px 1fr 32px; align-items: center; gap: 7px; color: var(--muted); font-size: 9px; }
.color-picker-alpha input[type="range"] { width: 100%; height: 12px; margin: 0; border: 1px solid rgb(0 0 0 / .2); border-radius: 999px; appearance: none; background: linear-gradient(to right, transparent, var(--alpha-color, #000)), repeating-conic-gradient(#d4dbe2 0 25%, #fff 0 50%) 0 / 8px 8px; }
.color-picker-alpha input[type="range"]::-webkit-slider-thumb { width: 14px; height: 18px; border: 2px solid white; border-radius: 4px; appearance: none; background: transparent; box-shadow: 0 0 0 1px rgb(0 0 0 / .7), 0 1px 3px rgb(0 0 0 / .45); }
.color-picker-alpha input[type="range"]::-moz-range-thumb { width: 10px; height: 14px; border: 2px solid white; border-radius: 4px; background: transparent; box-shadow: 0 0 0 1px rgb(0 0 0 / .7); }
.color-picker-alpha output { color: var(--text); text-align: right; font: 9px Consolas, monospace; }
.color-picker-hsv { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; }
.color-picker-hsv label { display: grid; grid-template-columns: 15px minmax(0, 1fr); align-items: center; color: var(--muted); font: 9px Consolas, monospace; }
.color-picker-hsv input { width: 100%; min-width: 0; height: 28px; padding: 4px 5px; border: 1px solid var(--border); border-radius: 5px; color: var(--text); background: var(--surface); font: 10px Consolas, monospace; }
.color-picker-actions { display: grid; grid-template-columns: minmax(0, 1fr); gap: 6px; }
.color-picker-actions input { width: 100%; min-width: 0; height: 32px; padding: 5px 7px; border: 1px solid var(--border); border-radius: 5px; color: var(--text); background: var(--surface); font: 11px Consolas, monospace; }
.color-picker-actions input[aria-invalid="true"] { border-color: var(--danger); outline-color: var(--danger); }
.color-picker-popup button { display: inline-flex; min-height: 32px; align-items: center; gap: 6px; padding: 0 11px; border: 1px solid var(--border); border-radius: 5px; color: var(--text); background: var(--surface); font-size: 10px; }
#source {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 14px 38px 14px 52px;
  border: 0;
  white-space: pre;
  font-family: Consolas, "SFMono-Regular", "Liberation Mono", monospace;
  font-size: 12px;
  font-weight: 400;
  font-style: normal;
  font-variant-ligatures: none;
  line-height: 20px;
  letter-spacing: 0;
  overflow-wrap: normal;
  word-break: normal;
  tab-size: 2;
}
#source {
  z-index: 1;
  overflow: auto;
  overscroll-behavior: none;
  outline: none;
  color: var(--text);
  caret-color: var(--text);
  background: transparent;
}
#source[data-vim-mode="normal"] { caret-color: transparent; }
#source::selection { background: var(--selection); }
::highlight(sbd-comment) { color: var(--faint); }
::highlight(sbd-structure) { color: #7c3aed; }
::highlight(sbd-attribute) { color: #087e8b; }
::highlight(sbd-string) { color: var(--text); }
::highlight(sbd-color) { color: #087e8b; font-weight: 700; }
::highlight(sbd-number) { color: #b4238a; }
::highlight(sbd-math) { color: #2563eb; }
:root[data-theme="dark"] ::highlight(sbd-structure) { color: #c4a7ff; }
:root[data-theme="dark"] ::highlight(sbd-attribute) { color: #66d9c8; }
:root[data-theme="dark"] ::highlight(sbd-string) { color: var(--text); }
:root[data-theme="dark"] ::highlight(sbd-color) { color: #5eead4; font-weight: 700; }
:root[data-theme="dark"] ::highlight(sbd-number) { color: #ff8fc7; }
:root[data-theme="dark"] ::highlight(sbd-math) { color: #83b9ff; }
.completion-menu {
  position: absolute;
  z-index: 4;
  top: 0;
  left: 0;
  width: min(290px, calc(100% - 20px));
  max-height: 190px;
  overflow: auto;
  padding: 5px;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 10px 28px var(--shadow);
}
.completion-item { display: block; width: 100%; padding: 7px 8px; border: 0; border-radius: 5px; color: var(--text); background: transparent; text-align: left; font: 11px/1.3 Consolas, monospace; }
.completion-item:hover, .completion-item.active { color: var(--heading); background: var(--code-bg); }
.completion-item small { display: block; margin-top: 2px; color: var(--muted); font: 9px/1.25 Inter, sans-serif; }
.editor-hint { display: flex; min-height: 16px; align-items: center; justify-content: space-between; gap: 8px; margin: 6px 2px 0; color: var(--faint); font-size: 9px; }
.editor-hint strong { color: var(--accent); font: 800 9px/1 Consolas, monospace; letter-spacing: .05em; }
.editor-hint-actions { display: flex; align-items: center; gap: 9px; margin-left: auto; white-space: nowrap; }
.completion-hint { color: var(--faint); }
.completion-hint kbd { padding: 1px 3px; border: 1px solid var(--border); border-bottom-color: var(--border-strong); border-radius: 3px; color: var(--muted); background: var(--surface); font: 8px Consolas, monospace; }
.status { min-width: 0; height: auto; margin: 0; padding: 0; overflow: hidden; font-size: 10px; text-overflow: ellipsis; white-space: nowrap; }
.status:empty { display: block; }
.status.ready { color: #478168; }
.status.error { color: #c2413d; }
details { border-top: 1px solid var(--border); color: var(--muted); font-size: 10px; }
summary { padding-top: 13px; color: var(--text); font-size: 11px; font-weight: 700; cursor: pointer; }
details pre { padding: 9px; overflow: auto; border-radius: 5px; color: var(--text); background: var(--code-bg); font: 10px/1.55 Consolas, monospace; }
details p { margin-bottom: 0; }

.preview { position: relative; z-index: 0; display: flex; min-width: 0; min-height: 0; flex-direction: column; padding: 24px; }
.preview-title { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 14px; }
.preview-title button {
  min-height: 31px;
  padding: 5px 10px;
  border: 1px solid var(--border);
  border-radius: 7px;
  color: var(--text);
  background: var(--surface);
  font-size: 11px;
  font-weight: 650;
}
.preview-title button:hover { border-color: var(--accent); background: var(--code-bg); }
.canvas-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 5px; }
.zoom-controls { display: flex; align-items: stretch; gap: 0; margin-left: 5px; padding: 2px; border: 1px solid var(--border); border-radius: 8px; background: var(--surface-soft); box-shadow: inset 0 1px color-mix(in srgb, var(--panel) 72%, transparent); }
.zoom-controls button { min-width: 28px; padding: 3px 7px; border: 0; border-radius: 5px; color: var(--muted); background: transparent; box-shadow: none; font-size: 11px; }
.zoom-controls button:hover { color: var(--heading); background: var(--panel); }
.zoom-controls select { min-width: 64px; padding: 3px 5px; border: 0; outline: 0; color: var(--heading); background: var(--surface-soft); font: 650 11px/1.2 Consolas, monospace; text-align: center; }
.zoom-controls select option { color: var(--text); background: var(--surface); }
.zoom-controls #zoom-fit { margin-left: 2px; padding-inline: 9px; border-left: 1px solid var(--border); border-radius: 0 5px 5px 0; font-size: 11px; font-weight: 750; }
.canvas-zoom-controls { position: absolute; z-index: 9; right: 38px; bottom: 38px; margin: 0; background: color-mix(in srgb, var(--panel) 94%, transparent); box-shadow: 0 5px 18px var(--shadow); backdrop-filter: blur(8px); }
.canvas-mode-controls { position: absolute; z-index: 9; left: 38px; bottom: 38px; margin: 0; background: color-mix(in srgb, var(--panel) 94%, transparent); box-shadow: 0 5px 18px var(--shadow); backdrop-filter: blur(8px); }
.canvas-mode-controls button { display: grid; width: 30px; height: 28px; place-items: center; padding: 0; }
.canvas-mode-controls svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.canvas-mode-controls button.mode-active { color: var(--accent); background: color-mix(in srgb, var(--accent) 12%, transparent); }
.canvas-shell.pan-mode { cursor: grab; touch-action: none; }
.canvas-shell.pan-mode.panning { cursor: grabbing; }
.canvas-shell.pan-mode #diagram { pointer-events: none; user-select: none; }
dialog { box-sizing: border-box; width: min(560px, calc(100vw - 32px)); max-width: calc(100vw - 32px); max-height: calc(100vh - 32px); overflow-x: hidden; overflow-y: auto; padding: 0; border: 1px solid var(--border-strong); border-radius: 12px; color: var(--text); background: var(--panel); box-shadow: 0 20px 60px rgb(0 0 0 / .28); }
dialog::backdrop { background: rgb(15 23 42 / .48); backdrop-filter: blur(2px); }
#graph-builder-form, #annotation-builder-form, .export-form, #style-builder-form { padding: 16px; }
.export-dialog { width: min(390px, calc(100vw - 32px)); }
#style-builder { width: min(480px, calc(100vw - 32px)); }
.export-help { margin: 7px 0 14px; color: var(--muted); font-size: 11px; }
.dialog-title { display: flex; align-items: start; gap: 12px; }
.dialog-title small { color: var(--accent); font-size: 9px; font-weight: 800; letter-spacing: .12em; }
.dialog-title h2 { margin: 2px 0 0; color: var(--heading); font-size: 17px; }
#graph-builder-help, .dialog-help { margin: 7px 0 14px; color: var(--muted); font-size: 11px; }
.style-builder-help { margin: 7px 0 14px; color: var(--muted); font-size: 11px; }
.style-builder-name { display: grid; gap: 4px; color: var(--muted); font-size: 10px; }
.style-builder-name input { box-sizing: border-box; width: 100%; min-height: 34px; padding: 6px 8px; border: 1px solid var(--border); border-radius: 6px; color: var(--text); background: var(--surface); font: 11px Consolas, monospace; }
.style-builder-properties { display: grid; gap: 5px; margin-top: 12px; color: var(--muted); font-size: 10px; }
.style-builder-properties textarea { box-sizing: border-box; width: 100%; min-height: 180px; resize: vertical; padding: 12px 14px; border: 1px solid var(--border-strong); border-radius: 8px; color: var(--text); background: var(--code-bg); box-shadow: inset 0 1px 3px var(--shadow); font: 12px/1.55 Consolas, Monaco, monospace; tab-size: 2; }
.style-builder-name input:focus, .style-builder-properties textarea:focus { outline: 2px solid color-mix(in srgb, var(--accent) 38%, transparent); outline-offset: 1px; border-color: var(--accent); }
.builder-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 10px; }
.builder-grid > * { min-width: 0; }
.builder-grid label { display: grid; gap: 4px; color: var(--muted); font-size: 10px; }
.builder-grid input, .builder-grid select { box-sizing: border-box; width: 100%; min-width: 0; min-height: 34px; padding: 6px 8px; border: 1px solid var(--border); border-radius: 6px; color: var(--text); background: var(--surface); font: 11px Consolas, monospace; }
.builder-grid textarea { box-sizing: border-box; width: 100%; min-width: 0; padding: 7px 8px; resize: vertical; border: 1px solid var(--border); border-radius: 6px; color: var(--text); background: var(--surface); font: 11px/1.4 Consolas, monospace; }
.builder-grid .builder-wide { grid-column: 1 / -1; }
.builder-grid fieldset { grid-column: 1 / -1; margin: 0; padding: 9px; border: 1px solid var(--border); border-radius: 7px; }
.builder-grid legend { padding: 0 5px; color: var(--muted); font-size: 10px; }
.flow-endpoints { display: grid; grid-column: 1 / -1; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 10px; }
.flow-endpoint { display: grid; min-width: 0; gap: 8px; padding: 10px; border: 1px solid var(--border); border-radius: 8px; background: var(--surface-soft); }
.connected-node-summary { display: grid; width: 100%; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 8px; }
.flow-endpoint fieldset { min-width: 0; padding: 7px; background: var(--surface); }
.node-choice-list { display: grid; gap: 3px; max-height: 150px; min-height: 74px; overflow: auto; }
.node-choice { width: 100%; min-width: 0; padding: 6px 7px; overflow: hidden; border: 1px solid transparent; border-radius: 5px; color: var(--text); background: transparent; font: 11px Consolas, monospace; text-align: left; text-overflow: ellipsis; white-space: nowrap; }
.node-choice:hover { background: var(--code-bg); }
.node-choice[aria-selected="true"] { border-color: var(--accent); color: var(--heading); background: var(--selection); font-weight: 700; }
.node-choice-empty { padding: 8px; color: var(--faint); font-size: 10px; text-align: center; }
.dialog-error { min-height: 16px; margin: 8px 0 0; color: var(--danger); font-size: 10px; }
.dialog-actions { display: flex; justify-content: flex-end; gap: 7px; margin: 12px -16px -16px; padding: 12px 16px; border-top: 1px solid var(--border); border-radius: 0 0 12px 12px; background: var(--surface-soft); }
.dialog-actions button { height: 35px; padding: 0 12px; border: 1px solid var(--border); border-radius: 7px; color: var(--text); background: var(--surface); font-size: 11px; font-weight: 650; }
.dialog-actions button:hover { border-color: var(--accent); background: var(--code-bg); }
.dialog-actions .primary { color: #fff; border-color: var(--accent); background: var(--accent); }
.dialog-actions .primary:hover { background: var(--accent-hover); }
#graph-builder[data-mode="flow"] .diagram-only,
#graph-builder[data-mode="flow"] .new-target-only,
#graph-builder:not([data-mode="connected-node"]) .connected-node-only,
#graph-builder[data-mode="connected-node"] .diagram-only,
#graph-builder[data-mode="connected-node"] .existing-target-only,
#graph-builder[data-mode="connected-node"] .existing-flow-only,
#graph-builder[data-mode="connected-node"] .connected-source-choice,
#graph-builder[data-mode="node"] .diagram-only,
#graph-builder[data-mode="node"] .flow-only,
#graph-builder[data-mode="node"] .relationship-only,
#graph-builder[data-mode="diagram"] .flow-only,
#graph-builder[data-mode="diagram"] .relationship-only { display: none; }
#graph-builder[data-mode="connected-node"] .flow-endpoints { grid-template-columns: minmax(0, 1fr); }
#graph-builder[data-mode="connected-node"] .flow-endpoint { width: 100%; }
@media (max-width: 620px) { .builder-grid, .flow-endpoints { grid-template-columns: 1fr; } }
.canvas-shell {
  position: relative;
  flex: 1;
  min-height: 0;
  overflow: auto;
  overscroll-behavior: contain;
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  background-color: var(--canvas);
  background-image: radial-gradient(var(--canvas-dot) .7px, transparent .7px);
  background-size: 16px 16px;
  box-shadow: 0 10px 30px var(--shadow);
}
.canvas-toast { position: absolute; z-index: 10; right: 16px; bottom: 16px; translate: 0 5px; padding: 7px 10px; border: 1px solid color-mix(in srgb, var(--accent) 30%, var(--border)); border-radius: 7px; color: var(--text); background: color-mix(in srgb, var(--panel) 92%, transparent); box-shadow: 0 6px 18px var(--shadow); font-size: 10px; font-weight: 650; opacity: 0; pointer-events: none; transition: opacity .18s ease, translate .18s ease; }
.canvas-toast.show { translate: 0; opacity: 1; }
.canvas-toast.show::before { content: "✓"; margin-right: 6px; color: var(--accent); }
#diagram.preview-invalid { position: relative; min-height: 100%; }
#diagram.preview-invalid > svg { opacity: .22; filter: grayscale(.65); }
#diagram.preview-invalid::after { content: attr(data-error); position: absolute; z-index: 4; top: 18px; left: 50%; translate: -50% 0; padding: 8px 12px; border: 1px solid var(--danger); border-radius: 7px; color: var(--danger); background: var(--panel); box-shadow: 0 5px 18px var(--shadow); font-size: 11px; font-weight: 750; white-space: nowrap; }
.canvas-inspector { position: fixed; z-index: 18; top: 94px; right: calc(var(--layers-width) + 12px); width: 266px; overflow: auto; overscroll-behavior: contain; scrollbar-gutter: stable; padding: 13px; border: 1px solid var(--border-strong); border-radius: 9px; background: var(--panel); box-shadow: 0 8px 25px var(--shadow); }
.canvas-inspector h3 { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin: 0 0 10px; font-size: 13px; color: var(--heading); }
.inspector-drag-handle { position: sticky; z-index: 3; top: -13px; margin: -13px -13px 10px; padding: 9px 12px; border-bottom: 1px solid var(--border); border-radius: 9px 9px 0 0; color: var(--heading); background: var(--surface-soft); box-shadow: 0 3px 8px color-mix(in srgb, var(--shadow) 55%, transparent); font-size: 11px; font-weight: 750; cursor: move; user-select: none; }
.canvas-inspector summary { color: var(--heading); font-size: 11px; font-weight: 700; cursor: pointer; }
.canvas-inspector summary small { color: var(--muted); font-size: 9px; font-weight: 500; }
.canvas-inspector details { margin: 8px 0 0; padding: 0; border: 0; border-top: 1px solid var(--border); border-radius: 0; background: transparent; }
.canvas-inspector details > summary { display: flex; align-items: center; gap: 6px; margin: 0; padding: 10px 0 8px; list-style: none; }
.canvas-inspector details > summary::-webkit-details-marker { display: none; }
.canvas-inspector details > summary::before { content: "›"; flex: 0 0 auto; color: var(--faint); font-size: 15px; font-weight: 500; line-height: 10px; transition: rotate .12s ease; }
.canvas-inspector details[open] > summary::before { rotate: 90deg; }
.canvas-inspector details[open] > :last-child:not(summary) { margin-bottom: 0; }
.canvas-inspector label.inspector-switch { display: flex; width: fit-content; flex-direction: row; align-items: center; justify-content: flex-start; gap: 4px; padding: 2px 0; }
.inspector-switch-compact { margin: 2px 0 0 auto !important; padding: 0 !important; }
.inspector-switch-heading { margin: 0 !important; padding: 0 !important; color: var(--muted) !important; font-size: 9px !important; font-weight: 600; }
.inspector-switch-summary { margin: 0 0 0 auto !important; padding: 0 !important; color: var(--muted) !important; font-size: 9px !important; font-weight: 600; }
.inspector-switch input[type="checkbox"] { appearance: none; width: 25px !important; min-height: 14px; height: 14px; margin: 0; padding: 0; border: 1px solid var(--border-strong); border-radius: 999px; background: var(--surface); cursor: pointer; transition: border-color .15s ease, background .15s ease; }
.inspector-switch input[type="checkbox"]::before { content: ""; display: block; width: 8px; height: 8px; margin: 2px; border-radius: 50%; background: var(--muted); transition: translate .15s ease, background .15s ease; }
.inspector-switch input[type="checkbox"]:checked { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 28%, var(--surface)); }
.inspector-switch input[type="checkbox"]:checked::before { translate: 11px 0; background: var(--accent); }
.inspector-switch input[type="checkbox"]:focus-visible { outline: 2px solid color-mix(in srgb, var(--accent) 45%, transparent); outline-offset: 2px; }
.inspector-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 7px; }
.inspector-inline-field { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: end; gap: 6px; }
.canvas-inspector .inspector-inline-field button, .inspector-sidecar .inspector-inline-field button { align-self: end; height: 29px; min-height: 29px; margin: 0; white-space: nowrap; }
.canvas-inspector .inspector-inline-field > label, .inspector-sidecar .inspector-inline-field > label { min-width: 0; margin: 0; }
.annotation-delete { width: 100%; }
.inspector-file-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: end; gap: 6px; }
.canvas-inspector label { display: grid; gap: 3px; margin: 7px 0; color: var(--muted); font-size: 10px; }
.inspector-help { display: block; margin: -2px 0 8px; color: var(--faint); font-size: 9px; line-height: 1.4; }
.connection-editor { padding: 7px 0; border-top: 1px solid var(--border); }
.connection-editor:first-of-type { border-top: 0; }
.connection-editor > strong { display: block; overflow: hidden; color: var(--heading); font-size: 10px; text-overflow: ellipsis; white-space: nowrap; }
.canvas-inspector input, .canvas-inspector select, .canvas-inspector textarea { width: 100%; min-height: 29px; padding: 4px 6px; border: 1px solid var(--border); border-radius: 5px; color: var(--text); background: var(--surface); font: 11px Consolas, monospace; }
.canvas-inspector textarea { resize: vertical; line-height: 1.4; }
.canvas-inspector .annotation-editor { margin-left: 3px; border-left-color: var(--accent); }
.inspector-empty { margin: 5px 0 0; color: var(--faint); line-height: 1.4; }
.canvas-inspector button { margin: 4px 4px 0 0; padding: 5px 8px; border: 1px solid var(--border); border-radius: 5px; color: var(--text); background: var(--surface); font-size: 10px; }
.canvas-inspector .inspector-file-row label { margin: 0; }
.canvas-inspector .inspector-file-row button { min-height: 29px; margin: 0; align-self: end; white-space: nowrap; }
.canvas-inspector button:hover { border-color: var(--accent); background: var(--code-bg); }
.canvas-inspector .inspector-primary-action { width: 100%; margin: 10px 0 0; border-color: var(--accent); color: var(--accent); font-weight: 750; }
#diagram svg .entry.selected-element { filter: drop-shadow(0 0 3px var(--accent)); }
#diagram svg .entry.selected-element .label-box, #diagram svg .connector.selected-element { stroke: var(--accent); }
#diagram svg .connector.selected-element { filter: drop-shadow(0 0 3px var(--accent)); }
#diagram svg .connector-hit { cursor: pointer; }
#diagram svg .block-annotation.selected-element { filter: drop-shadow(0 0 2px var(--accent)); text-decoration: underline; }
#diagram svg .subdiagram-selection-outline { opacity: 0; transition: opacity .22s ease; }
#diagram svg.interactive .subdiagram-hit:hover ~ .subdiagram-selection-outline { opacity: var(--graph-proximity, .16); }
#diagram svg.interactive [data-select-kind="graph"].selected-element > .subdiagram-selection-outline { opacity: 1; }
#diagram svg .resize-handles { display: none; }
#diagram svg .entry.selected-element > .resize-handles, #diagram svg [data-select-kind="graph"].selected-element > .resize-handles { display: block !important; }
#diagram svg .resize-frame { fill: none; stroke: var(--accent); stroke-width: 1.5; stroke-dasharray: 4 3; pointer-events: none; vector-effect: non-scaling-stroke; }
#diagram svg .resize-handle { fill: var(--panel); stroke: var(--accent); stroke-width: 2; vector-effect: non-scaling-stroke; }
#diagram svg .resize-handle[data-resize-x="0"] { cursor: ns-resize; }
#diagram svg .resize-handle[data-resize-y="0"] { cursor: ew-resize; }
#diagram svg .resize-handle[data-resize-x="-1"][data-resize-y="-1"], #diagram svg .resize-handle[data-resize-x="1"][data-resize-y="1"] { cursor: nwse-resize; }
#diagram svg .resize-handle[data-resize-x="1"][data-resize-y="-1"], #diagram svg .resize-handle[data-resize-x="-1"][data-resize-y="1"] { cursor: nesw-resize; }
#diagram svg [data-drag-kind] { cursor: move; }
.inspector-color { display: grid; grid-template-columns: 32px 1fr; gap: 5px; }
.canvas-inspector input[type="color"] { min-height: 29px; padding: 2px; }
.shadow-toggle { display: flex !important; grid-template-columns: none !important; align-items: center; gap: 5px !important; margin: 0 !important; }
.shadow-toggle input { width: auto; min-height: 0; }
.inspector-footer { position: sticky; z-index: 3; bottom: -13px; display: grid; gap: 6px; margin: 12px -13px -13px; padding: 10px 13px; border-top: 1px solid var(--border); border-radius: 0 0 9px 9px; background: var(--surface-soft); box-shadow: 0 -3px 8px color-mix(in srgb, var(--shadow) 55%, transparent); }
.inspector-footer-row { display: flex; justify-content: flex-end; gap: 6px; }
.inspector-footer-row button { flex: 1; }
.canvas-inspector .inspector-preset-bar { width: 100%; margin: 0; padding: 7px 8px; color: var(--accent); border-color: color-mix(in srgb, var(--accent) 55%, var(--border)); border-radius: 6px; background: color-mix(in srgb, var(--accent) 9%, var(--surface)); font-weight: 750; letter-spacing: .02em; }
.canvas-inspector .inspector-preset-bar:hover { color: var(--accent); border-color: var(--accent); background: color-mix(in srgb, var(--accent) 16%, var(--surface)); }
button.danger { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 55%, var(--border)); background: var(--danger-soft); }
button.danger:hover { color: var(--danger); border-color: var(--danger); background: color-mix(in srgb, var(--danger) 16%, var(--surface)); }

#diagram { width: max-content; min-width: 100%; height: max-content; min-height: 100%; display: grid; place-items: center; padding: 35px; background: transparent; }
#diagram svg { border-radius: 5px; box-shadow: 0 8px 25px var(--shadow); }

@media (max-width: 1050px) {
  main { --panel-width: 390px; }
  .title small, nav label { display: none; }
}

/* Preview-first property panels */
.inspector-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 8px; margin: 0 0 8px; }
.inspector-heading-text { display: grid; gap: 1px; min-width: 0; }
.inspector-heading-text strong { color: var(--heading); font-size: 12px; font-weight: 750; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.inspector-heading-text small { color: var(--faint); font-size: 9px; font-family: Consolas, monospace; }
.preview-stage { position: relative; display: grid; gap: 6px; justify-items: center; margin: 8px 0 4px; padding: 16px 22px; border: 1px solid var(--border); border-radius: 8px; background: linear-gradient(var(--preview-graph-background, transparent), var(--preview-graph-background, transparent)), var(--preview-canvas-background, #fff); text-align: center; }
.preview-part { position: relative; border: 1px dashed transparent; border-radius: 5px; cursor: pointer; transition: border-color .12s ease, background .12s ease; }
.preview-part:hover, .preview-part:focus-visible { border-color: color-mix(in srgb, var(--accent) 65%, transparent); background: color-mix(in srgb, var(--accent) 10%, transparent); outline: none; }
.preview-part.active-part { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 14%, transparent); }
.canvas-inspector .preview-annotation { max-width: 190px; margin: 0; padding: 2px 6px; border-color: transparent; color: var(--heading); background: transparent; box-shadow: none; font-size: 10px; font-weight: 650; text-align: center; text-transform: lowercase; white-space: nowrap; }
.canvas-inspector .preview-annotation:hover, .canvas-inspector .preview-annotation:focus-visible { border-color: color-mix(in srgb, var(--accent) 65%, transparent); background: color-mix(in srgb, var(--accent) 10%, transparent); }
.canvas-inspector .preview-annotation.active-part { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 14%, transparent); }
.preview-annotation span { color: var(--faint); font-size: 8px; }
.preview-annotation.empty { color: var(--muted); font-style: normal; }
.node-preview-stage { gap: 2px; padding-inline: 34px; }
.node-preview { display: grid; width: 100%; place-items: center; padding: 4px 0; }
.node-preview-box { position: relative; width: 138px; height: 58px; overflow: visible; padding: 0; cursor: pointer; }
.node-preview-shape { position: absolute; inset: 0; pointer-events: none; }
.node-preview-label { position: absolute; z-index: 1; top: 50%; left: 50%; display: flex; width: calc(100% - 24px); height: calc(100% - 14px); padding: 2px 4px; translate: -50% -50%; background: transparent; line-height: 1; }
.image-preview-box { position: relative; width: 138px; height: 92px; overflow: visible; cursor: pointer; }
.image-preview-box img, .image-preview-box svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.image-preview-box svg { pointer-events: none; }
.canvas-inspector .preview-face-add { position: absolute; z-index: 3; display: grid; place-items: center; width: 22px; height: 14px; margin: 0; padding: 0; border: 1px solid var(--border-strong); border-radius: 5px; color: var(--accent); background: var(--surface); font-size: 11px; font-weight: 800; line-height: 1; cursor: pointer; }
.canvas-inspector .preview-face-add:hover { color: #fff; border-color: var(--accent); background: var(--accent); }
.node-preview-stage > .preview-face-add[data-face-add="top"] { top: -7px; left: 50%; translate: -50% 0; }
.node-preview-stage > .preview-face-add[data-face-add="bottom"] { bottom: -7px; left: 50%; translate: -50% 0; }
.node-preview-stage > .preview-face-add[data-face-add="left"], .node-preview-stage > .preview-face-add[data-face-add="right"] { width: 14px; height: 22px; top: 50%; translate: 0 -50%; }
.node-preview-stage > .preview-face-add[data-face-add="left"] { left: -7px; }
.node-preview-stage > .preview-face-add[data-face-add="right"] { right: -7px; }
.inspector-id-field { margin-bottom: 8px; }
.flow-preview-wrap { display: grid; width: 100%; place-items: center; }
.flow-preview { display: block; width: 100%; max-width: 210px; height: 46px; }
.flow-endpoint-summary { display: grid; gap: 2px; width: 100%; padding: 6px 8px; color: var(--muted); font-size: 10px; text-align: left; }
.flow-endpoint-summary strong { color: var(--heading); font-size: 10px; font-weight: 700; }
.graph-preview-stage { gap: 2px; }
.graph-preview { position: relative; display: grid; width: min(100%, 190px); min-height: 66px; place-items: center; padding: 4px 0; }
.graph-preview-frame { position: relative; display: grid; width: 100%; min-height: 62px; grid-template-rows: 1fr; align-content: stretch; cursor: pointer; }
.canvas-inspector .graph-preview-title { z-index: 1; display: flex; width: 100%; min-height: 24px; margin: 0; padding: 2px 6px; overflow: hidden; border-color: transparent; color: inherit; background: transparent; box-shadow: none; text-overflow: ellipsis; white-space: nowrap; }
.graph-preview-frame > .graph-preview-title { position: absolute; top: 50%; left: 50%; width: calc(100% - 24px); height: calc(100% - 14px); translate: -50% -50%; }
.graph-preview > .graph-preview-title { min-height: 24px; }
.canvas-inspector .graph-preview-title:hover, .canvas-inspector .graph-preview-title:focus-visible { border-color: color-mix(in srgb, var(--accent) 65%, transparent); background: color-mix(in srgb, var(--accent) 10%, transparent); }
.canvas-inspector .graph-preview-title.active-part { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 14%, transparent); }
.connection-entry { display: grid; gap: 1px; width: 100%; margin: 4px 0 0; padding: 6px 8px; text-align: left; }
.canvas-inspector .connection-entry { border-radius: 6px; }
.connection-entry strong { color: var(--heading); font-size: 10px; font-weight: 700; }
.connection-entry small { color: var(--muted); font-size: 9px; }
.preset-row { display: grid; grid-template-columns: minmax(0, 1fr); gap: 4px; }

/* Sidecar popouts attached to the property panel */
.inspector-sidecar { position: fixed; z-index: 19; display: flex; flex-direction: column; width: 244px; max-height: 70vh; border: 1px solid var(--border-strong); border-radius: 9px; background: var(--panel); box-shadow: 0 8px 25px var(--shadow); }
.inspector-sidecar[hidden] { display: none; }
.inspector-sidecar .sidecar-header { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 8px 12px; border-bottom: 1px solid var(--border); border-radius: 9px 9px 0 0; color: var(--heading); background: var(--surface-soft); font-size: 11px; font-weight: 750; }
.inspector-sidecar .sidecar-header button { margin: 0; padding: 0 6px; border: 0; color: var(--muted); background: transparent; font-size: 14px; line-height: 1; cursor: pointer; }
.inspector-sidecar .sidecar-header button:hover { color: var(--text); }
.inspector-sidecar label { display: grid; gap: 3px; margin: 7px 0; color: var(--muted); font-size: 10px; }
.inspector-sidecar input, .inspector-sidecar select, .inspector-sidecar textarea { width: 100%; min-height: 29px; padding: 4px 6px; border: 1px solid var(--border); border-radius: 5px; color: var(--text); background: var(--surface); font: 11px Consolas, monospace; }
.inspector-sidecar textarea { resize: vertical; line-height: 1.4; }
.inspector-sidecar button { margin: 4px 4px 0 0; padding: 5px 8px; border: 1px solid var(--border); border-radius: 5px; color: var(--text); background: var(--surface); font-size: 10px; }
.inspector-sidecar button:hover { border-color: var(--accent); background: var(--code-bg); }
.inspector-sidecar .inspector-primary-action { width: 100%; margin: 10px 0 0; border-color: var(--accent); color: var(--accent); font-weight: 750; }
.inspector-sidecar details { margin: 8px 0 0; padding: 0; border-top: 1px solid var(--border); background: transparent; }
.inspector-sidecar summary { display: flex; align-items: center; gap: 6px; padding: 8px 0; color: var(--heading); font-size: 11px; font-weight: 700; list-style: none; cursor: pointer; }
.inspector-sidecar summary::-webkit-details-marker { display: none; }
.inspector-sidecar summary::before { content: "\203A"; color: var(--faint); font-size: 15px; line-height: 10px; }
.inspector-sidecar details[open] > summary::before { rotate: 90deg; }
.inspector-sidecar details[open] > :last-child:not(summary) { margin-bottom: 0; }
.inspector-sidecar .sidecar-help { display: block; margin: 0 0 6px; color: var(--faint); font-size: 9px; line-height: 1.4; }
.inspector-sidecar .sidecar-content { overflow: auto; overscroll-behavior: contain; padding: 2px 12px 12px; }
.inspector-sidecar .sidecar-pointer { position: absolute; top: 14px; width: 9px; height: 9px; border: 1px solid var(--border-strong); background: var(--panel); rotate: 45deg; }
.inspector-sidecar[data-side="left"] .sidecar-pointer { right: -6px; border-width: 1px 1px 0 0; }
.inspector-sidecar[data-side="right"] .sidecar-pointer { left: -6px; border-width: 0 0 1px 1px; }
.connection-actions { display: grid; gap: 6px; grid-template-columns: 1fr 1fr; margin-top: 8px; }