:root {
  color-scheme: light;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #252a31;
  background: #f5f6f8;
  font-synthesis: none;
  --accent: #334155;
  --accent-strong: #0f172a;
  --accent-soft: #e9edf2;
  --selection: #118dcc;
  --selection-soft: rgba(17, 141, 204, .12);
  --focus: #64748b;
  --text: #17191d;
  --text-soft: #4d525b;
  --muted: #737983;
  --border: #d9dde3;
  --border-soft: #e9ebef;
  --panel: #fbfbfc;
  --panel-raised: #ffffff;
  --panel-hover: #f1f3f5;
  --panel-active: #e6e9ed;
  --canvas-shell: #e9ecef;
  --workspace: #ffffff;
  --workspace-border: #cfd5dc;
  --grid-line: #e8ebef;
  --input: #ffffff;
  --shadow: 0 18px 55px rgba(23, 27, 34, .16), 0 2px 8px rgba(23, 27, 34, .08);
  --glow: rgba(255, 255, 255, .72);
  --toolbar-height: 52px;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  color: #e7eaf0;
  background: #08090b;
  --accent: #d7dce4;
  --accent-strong: #ffffff;
  --accent-soft: #272b32;
  --selection: #31b8f4;
  --selection-soft: rgba(49, 184, 244, .14);
  --focus: #b4bdca;
  --text: #f2f3f5;
  --text-soft: #c5c9d0;
  --muted: #8b919b;
  --border: #2a2e35;
  --border-soft: #202329;
  --panel: #0e1013;
  --panel-raised: #15181d;
  --panel-hover: #1d2127;
  --panel-active: #272c34;
  --canvas-shell: #080a0d;
  --workspace: #111419;
  --workspace-border: #30353d;
  --grid-line: #252a31;
  --input: #15181d;
  --shadow: 0 22px 70px rgba(0, 0, 0, .48), 0 2px 8px rgba(0, 0, 0, .32);
  --glow: rgba(255, 255, 255, .1);
}

* { box-sizing: border-box; }

html, body { width: 100%; height: 100%; margin: 0; overflow: hidden; }
body { background: var(--canvas-shell); }
body::before {
  position: fixed;
  inset: -35%;
  content: "";
  pointer-events: none;
  background:
    radial-gradient(circle at 22% 24%, color-mix(in srgb, var(--glow) 58%, transparent), transparent 28%),
    radial-gradient(circle at 76% 68%, color-mix(in srgb, var(--glow) 42%, transparent), transparent 32%);
  opacity: .66;
  animation: ambient-drift 18s ease-in-out infinite alternate;
  z-index: -1;
}

button, input, select, textarea { font: inherit; }

button {
  min-height: 28px;
  padding: 4px 8px;
  color: var(--text-soft);
  background: var(--panel-raised);
  border: 1px solid transparent;
  border-radius: 6px;
  cursor: pointer;
  white-space: nowrap;
  transition: color .14s ease, background-color .14s ease, border-color .14s ease;
}

button:hover:not(:disabled) { color: var(--text); background: var(--panel-hover); border-color: var(--border); }
button:active:not(:disabled) { background: var(--panel-active); }
button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 1px;
}
button:disabled { color: color-mix(in srgb, var(--muted) 65%, transparent); cursor: default; background: transparent; }
button.active { color: var(--accent-strong); background: var(--accent-soft); border-color: color-mix(in srgb, var(--accent) 38%, var(--border)); }

#app {
  display: grid;
  grid-template-columns: 164px minmax(0, 1fr) auto;
  grid-template-rows: var(--toolbar-height) minmax(0, 1fr) 25px;
  width: 100vw;
  height: 100vh;
  isolation: isolate;
}

.toolbar {
  position: relative;
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 4px;
  min-width: 0;
  padding: 6px 9px;
  color: var(--text);
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  z-index: 5;
  box-shadow: 0 7px 28px rgba(0, 0, 0, .06);
}
.toolbar::after {
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 1px;
  content: "";
  background: linear-gradient(90deg, transparent 4%, color-mix(in srgb, var(--text) 42%, transparent) 28%, transparent 51%, color-mix(in srgb, var(--text) 25%, transparent) 76%, transparent 96%);
  background-size: 180% 100%;
  animation: gradient-scan 9s linear infinite;
  pointer-events: none;
}

.brand-mark {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 4px 0 2px;
  color: var(--text);
  font-size: 13px;
  font-weight: 750;
  letter-spacing: -.01em;
  white-space: nowrap;
}
.brand-icon { color: var(--text); font-size: 17px; line-height: 1; filter: drop-shadow(0 0 8px color-mix(in srgb, var(--text) 30%, transparent)); }
.brand-word { font-size: 15px; font-weight: 520; letter-spacing: -.035em; text-transform: lowercase; }
.brand-cursor { color: var(--muted); animation: cursor-pulse 1.8s steps(2, end) infinite; }
.brand-badge { padding: 2px 5px; color: var(--muted); border: 1px solid var(--border); border-radius: 999px; font-size: 8px; font-weight: 750; letter-spacing: .09em; text-transform: uppercase; }

.document-title {
  width: 170px;
  min-width: 110px;
  height: 30px;
  padding: 4px 7px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  background: transparent;
  border: 1px solid transparent;
  border-radius: 6px;
  text-overflow: ellipsis;
}
.document-title:hover, .document-title:focus { border-color: var(--border); }
.toolbar-separator { width: 1px; height: 24px; margin: 0 2px; background: var(--border); }
.toolbar-spacer { flex: 1; min-width: 4px; }
.toolbar-actions { display: flex; align-items: center; gap: 4px; min-width: 0; }
.tool-group { display: flex; align-items: center; gap: 1px; }
.toolbar button { font-size: 12px; }
.toolbar .dropdown { position: relative; }
.toolbar .dropdown.menu-open { z-index: 90; }
.toolbar .dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  display: flex;
  flex-direction: column;
}
.toolbar .dropdown-menu.hidden { display: none !important; }
.toolbar .dropdown-toggle[aria-expanded="true"] { color: var(--text); background: var(--panel-active); border-color: var(--border); }
.zoom-group button { min-width: 28px; }
#zoom-display { width: 48px; padding-inline: 3px; }
.theme-toggle { display: inline-flex; align-items: center; gap: 5px; border-color: var(--border); }
.tool-pills { padding: 2px; background: color-mix(in srgb, var(--panel-hover) 72%, transparent); border: 1px solid var(--border-soft); border-radius: 8px; }
.tool-pills button { border-radius: 6px; }
.menu-caret { margin-left: 2px; color: var(--muted); font-size: 11px; transition: transform .18s ease; }
.dropdown-open .menu-caret, [aria-expanded="true"] .menu-caret { transform: rotate(180deg); }

.dropdown-menu {
  z-index: 80;
  gap: 2px;
  padding: 7px;
  color: var(--text);
  background:
    linear-gradient(112deg, transparent 18%, color-mix(in srgb, white 18%, transparent) 34%, transparent 50%) 120% 0 / 220% 100%,
    color-mix(in srgb, var(--panel-raised) 94%, transparent);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px) saturate(125%);
  animation: premium-sheen 7s ease-in-out infinite;
}
.dropdown-title { padding: 5px 9px 7px; color: var(--muted); font-size: 9px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.dropdown-item {
  display: flex;
  align-items: center;
  width: 100%;
  min-height: 40px;
  gap: 10px;
  padding: 7px 9px;
  color: var(--text-soft);
  border: 0;
  border-radius: 7px;
  text-align: left;
}
.dropdown-item:hover { color: var(--text); background: var(--panel-hover); }
.dropdown-item > span:first-child { display: grid; width: 23px; height: 23px; place-items: center; color: var(--text); background: var(--panel-active); border: 1px solid var(--border); border-radius: 6px; font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 10px; }
.dropdown-item > span:nth-child(2) { display: flex; min-width: 0; flex: 1; flex-direction: column; gap: 1px; }
.dropdown-item strong { color: inherit; font-size: 11px; font-weight: 650; }
.dropdown-item small { color: var(--muted); font-size: 9px; line-height: 1.25; }
.menu-divider { height: 1px; margin: 4px 5px; background: var(--border-soft); }
.danger-item { color: #c5525d; }
.danger-item:hover { color: #e4616c; }
.compact-menu { padding: 8px; }
.compact-item { min-height: 34px; }
.compact-item > span:nth-child(2) { display: block; }
.menu-grid { display: grid; gap: 4px; padding: 2px 5px; }
.menu-grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.menu-grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.menu-grid button { min-width: 0; border-color: var(--border-soft); font-size: 10px; }
.zoom-strip { display: grid; grid-template-columns: 32px 1fr 32px; gap: 4px; padding: 2px 5px 5px; }
.zoom-strip button { border-color: var(--border-soft); }
.view-check { display: none !important; width: auto !important; height: auto !important; margin-left: auto; color: var(--selection) !important; background: none !important; border: 0 !important; }
.view-choice[aria-checked="true"] .view-check { display: inline !important; }
.theme-choice { min-height: 34px; }
.theme-choice > span:nth-child(2) { display: block; }
.theme-choice .theme-check { display: none; width: auto; height: auto; margin-left: auto; color: var(--text); background: none; border: 0; font-size: 11px; }
:root[data-theme-preference="light"] [data-theme-value="light"] .theme-check,
:root[data-theme-preference="dark"] [data-theme-value="dark"] .theme-check,
:root[data-theme-preference="system"] [data-theme-value="system"] .theme-check { display: inline; }

.shape-panel, .properties-panel {
  min-height: 0;
  background: var(--panel);
  overflow: auto;
  z-index: 3;
}
.shape-panel { grid-column: 1; border-right: 1px solid var(--border); }
.properties-panel { grid-column: 3; width: 228px; border-left: 1px solid var(--border); }

.panel-heading {
  position: sticky;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 36px;
  padding: 0 10px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--text-soft);
  background: color-mix(in srgb, var(--panel) 94%, transparent);
  border-bottom: 1px solid var(--border-soft);
  backdrop-filter: blur(8px);
  z-index: 2;
}
.snap-toggle { display: flex; align-items: center; gap: 4px; font-weight: 500; text-transform: none; letter-spacing: 0; color: var(--muted); cursor: pointer; }
.snap-toggle input { margin: 0; accent-color: var(--accent); }

.shape-search {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 7px 7px 1px;
  padding: 0 7px;
  color: var(--muted);
  background: var(--input);
  border: 1px solid var(--border-soft);
  border-radius: 7px;
}
.shape-search:focus-within { border-color: var(--selection); box-shadow: 0 0 0 2px var(--selection-soft); }
.shape-search input { width: 100%; min-width: 0; height: 29px; padding: 0; color: var(--text); background: transparent; border: 0; outline: 0; font-size: 10px; }
.shape-search input::placeholder { color: var(--muted); }

.shape-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 4px; padding: 7px; }
.shape-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  min-width: 0;
  height: 66px;
  padding: 5px 2px;
  color: var(--text-soft);
  background: var(--panel);
  border: 1px solid transparent;
  border-radius: 7px;
  cursor: grab;
  user-select: none;
}
.shape-item:hover { color: var(--text); background: var(--panel-hover); border-color: var(--border); }
.shape-item:active { cursor: grabbing; }
.shape-item svg { width: 42px; height: 30px; overflow: visible; pointer-events: none; }
.shape-item span { width: 100%; overflow: hidden; font-size: 10px; line-height: 1.1; text-align: center; text-overflow: ellipsis; white-space: nowrap; }

.canvas-shell {
  position: relative;
  grid-column: 2;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
  background: var(--canvas-shell);
  outline: none;
}
.canvas-shell::before {
  position: absolute;
  inset: 0;
  content: "";
  pointer-events: none;
  background:
    radial-gradient(circle at 52% 14%, color-mix(in srgb, var(--glow) 70%, transparent), transparent 34%),
    radial-gradient(circle, color-mix(in srgb, var(--text) 8%, transparent) 0 1px, transparent 1.5px) 0 0 / 8px 8px;
  mask-image: linear-gradient(115deg, transparent 12%, #000 46%, transparent 82%);
  opacity: .28;
  animation: halftone-drift 24s ease-in-out infinite alternate;
  z-index: 1;
}
.canvas-shell > * { position: relative; z-index: 2; }
.canvas-shell[data-mode="select"] { cursor: default; }
.canvas-shell[data-mode="connect"] { cursor: crosshair; }
.canvas-shell[data-mode="text"] { cursor: text; }
.canvas-shell.panning { cursor: grabbing; }
#canvas { display: block; width: 100%; height: 100%; user-select: none; touch-action: none; }
.workspace-bg { fill: var(--workspace); stroke: var(--workspace-border); stroke-width: 1; filter: drop-shadow(0 12px 30px rgba(0, 0, 0, .14)); }
.grid { fill: url(#small-grid); pointer-events: none; }
.grid[hidden] { display: none; }
#small-grid path { stroke: var(--grid-line); }
.node { cursor: move; }
.node.locked { cursor: default; }
.node text, .edge-label { cursor: text; pointer-events: auto; }
.node-shape { vector-effect: non-scaling-stroke; }
.edge-path { fill: none; cursor: pointer; vector-effect: non-scaling-stroke; }
.edge-hit { fill: none; stroke: transparent; stroke-width: 14; cursor: pointer; vector-effect: non-scaling-stroke; }
.edge-label-bg { fill: var(--workspace) !important; opacity: .94; }
:root[data-theme="dark"] .edge-label { fill: #d8dee9 !important; }
.selection-outline { fill: none; stroke: var(--selection); stroke-width: 1.5; stroke-dasharray: 4 3; vector-effect: non-scaling-stroke; pointer-events: none; }
.resize-handle, .endpoint-handle { fill: var(--panel); stroke: var(--selection); stroke-width: 1.5; vector-effect: non-scaling-stroke; }
.resize-handle { cursor: nwse-resize; }
.resize-handle[data-handle="n"], .resize-handle[data-handle="s"] { cursor: ns-resize; }
.resize-handle[data-handle="e"], .resize-handle[data-handle="w"] { cursor: ew-resize; }
.resize-handle[data-handle="ne"], .resize-handle[data-handle="sw"] { cursor: nesw-resize; }
.port { fill: var(--panel); stroke: var(--selection); stroke-width: 1.5; cursor: crosshair; vector-effect: non-scaling-stroke; }
.port:hover { fill: var(--selection); }
.marquee { fill: var(--selection-soft); stroke: var(--selection); stroke-width: 1; stroke-dasharray: 4 3; vector-effect: non-scaling-stroke; pointer-events: none; }
.empty-hint { fill: var(--muted); font-size: 14px; pointer-events: none; }
.inline-editor {
  position: fixed;
  display: none;
  min-width: 56px;
  min-height: 32px;
  padding: 3px 5px;
  color: var(--text);
  background: color-mix(in srgb, var(--panel-raised) 96%, transparent);
  border: 1px solid var(--accent);
  border-radius: 5px;
  outline: none;
  resize: none;
  overflow: hidden;
  line-height: 1.25;
  text-align: center;
  z-index: 20;
}

.properties-content { padding: 9px; font-size: 12px; }
.property-section { padding-bottom: 10px; margin-bottom: 10px; border-bottom: 1px solid var(--border-soft); }
.property-section:last-child { border-bottom: 0; margin-bottom: 0; }
.property-section-title { margin-bottom: 7px; color: var(--muted); font-size: 10px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; }
.property-row { display: grid; grid-template-columns: 70px minmax(0, 1fr); align-items: center; gap: 7px; min-height: 30px; }
.property-row > label { color: var(--text-soft); }
.property-row input[type="number"], .property-row input[type="text"], .property-row select {
  width: 100%;
  height: 26px;
  min-width: 0;
  padding: 2px 5px;
  color: var(--text);
  background: var(--input);
  border: 1px solid var(--border);
  border-radius: 5px;
}

.context-toolbar {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 4px;
  color: var(--text);
  background:
    linear-gradient(112deg, transparent 20%, color-mix(in srgb, white 17%, transparent) 36%, transparent 52%) 120% 0 / 220% 100%,
    color-mix(in srgb, var(--panel-raised) 95%, transparent);
  border: 1px solid var(--border);
  border-radius: 9px;
  box-shadow: 0 12px 34px rgba(0, 0, 0, .28), 0 0 0 1px color-mix(in srgb, var(--selection) 12%, transparent);
  backdrop-filter: blur(16px) saturate(130%);
  transform: translate(-50%, -100%);
  z-index: 30;
  animation: context-in .14s ease-out, premium-sheen 6s 1s ease-in-out infinite;
}
.context-toolbar[hidden] { display: none; }
.context-toolbar::after {
  position: absolute;
  bottom: -5px;
  left: 50%;
  width: 8px;
  height: 8px;
  content: "";
  background: var(--panel-raised);
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  transform: translateX(-50%) rotate(45deg);
}
.context-toolbar button { min-height: 27px; padding: 3px 7px; background: transparent; border: 0; font-size: 10px; }
.context-toolbar button span { margin-left: 2px; }
.context-grip { padding: 0 5px 0 3px; color: var(--selection); font-size: 12px; }
.context-danger { color: #dc5d67 !important; font-size: 16px !important; }
.property-row input[type="color"] { width: 34px; height: 25px; padding: 1px; border: 1px solid var(--border); border-radius: 5px; background: var(--input); }
.property-actions, .segment { display: flex; gap: 3px; flex-wrap: wrap; }
.property-actions button, .segment button { flex: 1; min-width: 28px; border-color: var(--border); font-size: 11px; }
.segment button.active { border-color: color-mix(in srgb, var(--accent) 42%, var(--border)); }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.mini-field label { display: block; margin-bottom: 3px; color: var(--muted); font-size: 10px; }
.mini-field input { width: 100%; height: 26px; padding: 2px 5px; color: var(--text); background: var(--input); border: 1px solid var(--border); border-radius: 5px; }

.statusbar {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 18px;
  min-width: 0;
  padding: 0 9px;
  color: var(--muted);
  background: var(--panel);
  border-top: 1px solid var(--border);
  font-size: 10px;
  z-index: 5;
}
#status-text { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.maintainer-link { color: var(--muted); text-decoration: none; }
.maintainer-link:hover { color: var(--accent); text-decoration: underline; }
#selection-status { margin-left: auto; }

.modal {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: start center;
  padding: min(12vh, 96px) 16px 16px;
  color: var(--text);
  background: rgba(3, 5, 8, .6);
  backdrop-filter: blur(7px);
  z-index: 100;
}
.modal.hidden { display: none !important; }
.modal:not(.hidden) { opacity: 1 !important; visibility: visible !important; pointer-events: auto !important; }
.modal:not(.hidden) .modal-dialog { opacity: 1 !important; visibility: visible !important; transform: translateY(0) scale(1) !important; }
.modal-dialog { width: min(460px, calc(100vw - 32px)); }
.modal-content { display: flex; flex-direction: column; }
.premium-modal {
  overflow: hidden;
  color: var(--text);
  background:
    linear-gradient(145deg, color-mix(in srgb, var(--panel-raised) 98%, white 2%), var(--panel)),
    var(--panel-raised);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: 0 28px 90px rgba(0, 0, 0, .42);
}
.premium-modal::before {
  display: block;
  width: 100%;
  height: 2px;
  content: "";
  background: linear-gradient(90deg, transparent, var(--text), transparent);
  opacity: .45;
  animation: gradient-scan 7s linear infinite;
  background-size: 180% 100%;
}
.modal-header, .modal-body, .modal-footer { border-color: var(--border-soft); }
.modal-header { align-items: flex-start; padding: 17px 18px 12px; }
.modal-title { margin: 2px 0 0; color: var(--text); font-size: 17px; font-weight: 680; letter-spacing: -.025em; }
.modal-kicker { color: var(--muted); font-size: 9px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.modal-body { padding: 8px 18px 18px; color: var(--text-soft); font-size: 12px; line-height: 1.55; }
.modal-body p { margin: 0; }
.modal-footer { gap: 7px; padding: 12px 18px 16px; background: color-mix(in srgb, var(--panel-hover) 54%, transparent); }
.modal-note { margin-right: auto; color: var(--muted); font-size: 10px; }
.shortcut-grid { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 8px 24px; padding-top: 12px; }
.shortcut-grid span { color: var(--text-soft); }
kbd { padding: 3px 7px; color: var(--text); background: var(--panel-active); border: 1px solid var(--border); border-bottom-width: 2px; border-radius: 5px; font: 10px/1.2 ui-monospace, SFMono-Regular, Consolas, monospace; white-space: nowrap; }

.settings-dialog { width: min(680px, calc(100vw - 32px)); }
.settings-layout { display: grid; grid-template-columns: 150px minmax(0, 1fr); min-height: 330px; border-top: 1px solid var(--border-soft); border-bottom: 1px solid var(--border-soft); }
.settings-tabs { display: flex; flex-direction: column; gap: 4px; padding: 12px 9px; background: color-mix(in srgb, var(--panel-hover) 55%, transparent); border-right: 1px solid var(--border-soft); }
.settings-tabs .tab { justify-content: flex-start; min-height: 34px; padding: 6px 9px; color: var(--muted); background: transparent; border: 0; text-align: left; font-size: 11px; }
.settings-tabs .tab.active { color: var(--text); background: var(--panel-active); box-shadow: inset 2px 0 var(--selection); }
.settings-panels { min-width: 0; padding: 16px 18px; }
.settings-panel { display: flex; flex-direction: column; gap: 4px; }
.settings-panel[hidden] { display: none; }
.settings-section-heading, .setting-row, .setting-field { display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.settings-section-heading { margin-bottom: 9px; }
.settings-section-heading > div, .setting-row > span, .setting-field > span { display: flex; min-width: 0; flex-direction: column; gap: 2px; }
.settings-section-heading strong, .setting-row strong, .setting-field strong { color: var(--text); font-size: 11px; font-weight: 650; }
.settings-section-heading small, .setting-row small, .setting-field small { color: var(--muted); font-size: 9px; line-height: 1.35; }
.setting-row, .setting-field { min-height: 56px; padding: 9px 0; border-bottom: 1px solid var(--border-soft); }
.setting-row:last-child, .setting-field:last-child { border-bottom: 0; }
.setting-field select { width: 150px; min-width: 130px; color: var(--text); background: var(--input); border-color: var(--border); }
.setting-action button { flex: 0 0 auto; }
.settings-footer { padding-block: 11px; }
.theme-card-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 7px; margin-bottom: 6px; }
.theme-card { display: grid; min-width: 0; min-height: 92px; padding: 7px; grid-template-columns: 1fr; gap: 3px; justify-items: start; border-color: var(--border); text-align: left; }
.theme-card[aria-checked="true"] { border-color: var(--selection); box-shadow: 0 0 0 2px var(--selection-soft); }
.theme-card strong { color: var(--text); font-size: 10px; }
.theme-card small { color: var(--muted); font-size: 8px; }
.theme-preview { display: block; width: 100%; height: 38px; overflow: hidden; border: 1px solid var(--border); border-radius: 5px; }
.light-preview { background: linear-gradient(90deg, #f8fafc 32%, #e4e9ef 32% 38%, #fff 38%); }
.dark-preview { background: linear-gradient(90deg, #0d1014 32%, #262b32 32% 38%, #15191e 38%); }
.system-preview { background: linear-gradient(90deg, #f8fafc 0 50%, #15191e 50%); }

.command-trigger { color: var(--muted); font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 9px !important; }
.command-overlay { padding-top: min(15vh, 130px); }
.command-dialog { width: min(560px, calc(100vw - 26px)); }
.command-search-wrap { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 9px; padding: 12px 13px; border-bottom: 1px solid var(--border-soft); }
.command-search-wrap > span { color: var(--selection); font-size: 17px; }
.command-search-wrap input { width: 100%; height: 34px; padding: 0; color: var(--text); background: transparent; border: 0; outline: 0; font-size: 13px; }
.command-list { display: flex; max-height: min(420px, 55vh); flex-direction: column; gap: 2px; padding: 7px; overflow: auto; }
.command-list button { display: grid; grid-template-columns: 28px minmax(0, 1fr) auto; align-items: center; min-height: 44px; gap: 8px; padding: 6px 9px; background: transparent; border: 0; text-align: left; }
.command-list button > span:first-child { display: grid; width: 25px; height: 25px; place-items: center; background: var(--panel-active); border: 1px solid var(--border-soft); border-radius: 6px; }
.command-list button > span:nth-child(2) { display: flex; flex-direction: column; gap: 1px; }
.command-list strong { color: var(--text); font-size: 11px; font-weight: 620; }
.command-list small { color: var(--muted); font-size: 9px; }
.command-list button:hover, .command-list button:focus, .command-list button.command-active { background: var(--panel-hover); border-color: transparent; }
.command-list button[hidden] { display: none; }
.command-footer { display: flex; justify-content: flex-end; gap: 14px; padding: 8px 12px; color: var(--muted); background: var(--panel-hover); border-top: 1px solid var(--border-soft); font-size: 9px; }
.command-footer kbd { padding: 2px 4px; }

.toast-stack { position: fixed; right: 12px; bottom: 36px; display: flex; width: min(320px, calc(100vw - 24px)); flex-direction: column; align-items: flex-end; gap: 7px; pointer-events: none; z-index: 150; }
.toast-message { display: flex; width: max-content; max-width: 100%; min-height: 38px; align-items: center; gap: 8px; padding: 8px 11px; color: var(--text); background: color-mix(in srgb, var(--panel-raised) 94%, transparent); border: 1px solid var(--border); border-radius: 9px; box-shadow: var(--shadow); opacity: 0; transform: translateY(8px) scale(.98); transition: opacity .18s ease, transform .18s ease; backdrop-filter: blur(16px); }
.toast-message.visible { opacity: 1; transform: translateY(0) scale(1); }
.toast-dot { width: 7px; height: 7px; flex: 0 0 auto; background: var(--selection); border-radius: 50%; box-shadow: 0 0 12px var(--selection); }
.toast-message.alert-error .toast-dot { background: #e4616c; box-shadow: 0 0 12px #e4616c; }

/* Local project library */
.library-page {
  min-height: 100vh;
  overflow: auto;
  color: var(--text);
  background:
    radial-gradient(circle at 82% 8%, color-mix(in srgb, var(--selection) 12%, transparent), transparent 28rem),
    radial-gradient(circle at 10% 35%, color-mix(in srgb, var(--accent) 8%, transparent), transparent 30rem),
    var(--app-bg);
}
.library-page::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: .22;
  background-image: radial-gradient(color-mix(in srgb, var(--muted) 34%, transparent) .6px, transparent .6px);
  background-size: 18px 18px;
  mask-image: linear-gradient(to bottom, black, transparent 72%);
}
.library-header, .library-main, .library-footer { position: relative; z-index: 1; }
.library-header {
  display: flex;
  min-height: 64px;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 0 clamp(20px, 5vw, 72px);
  border-bottom: 1px solid var(--border-soft);
  background: color-mix(in srgb, var(--app-bg) 78%, transparent);
  backdrop-filter: blur(18px);
}
.library-brand { display: inline-flex; align-items: center; gap: 9px; color: var(--text); text-decoration: none; }
.library-brand .brand-icon { display: grid; width: 28px; height: 28px; place-items: center; color: var(--selection); background: color-mix(in srgb, var(--selection) 12%, transparent); border: 1px solid color-mix(in srgb, var(--selection) 26%, var(--border)); border-radius: 8px; font-size: 17px; }
.brand-word { font-size: 15px; font-weight: 720; letter-spacing: -.02em; }
.brand-cursor { color: var(--selection); animation: cursor-pulse 1.3s steps(1) infinite; }
.library-header-actions { display: flex; align-items: center; gap: 10px; }
.privacy-chip { display: inline-flex; align-items: center; gap: 7px; padding: 6px 9px; color: var(--muted); background: var(--panel); border: 1px solid var(--border-soft); border-radius: 999px; font-size: 10px; }
.privacy-chip > span { color: #35a86b; font-size: 7px; }
.library-main { width: min(1180px, calc(100% - 40px)); margin: 0 auto; padding: clamp(50px, 8vw, 96px) 0 70px; }
.library-hero { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: end; gap: 36px; }
.library-kicker { display: inline-block; margin-bottom: 13px; color: var(--selection); font-size: 10px; font-weight: 720; letter-spacing: .15em; text-transform: uppercase; }
.library-hero h1 { max-width: 760px; margin: 0; font-size: clamp(38px, 6vw, 72px); font-weight: 670; line-height: .98; letter-spacing: -.055em; }
.library-hero p { max-width: 630px; margin: 22px 0 0; color: var(--muted); font-size: clamp(14px, 2vw, 17px); line-height: 1.65; }
.library-new-button { min-height: 44px; padding-inline: 18px; box-shadow: 0 14px 34px color-mix(in srgb, var(--selection) 22%, transparent); }
.privacy-banner { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 13px; margin: 42px 0 58px; padding: 14px 16px; background: color-mix(in srgb, var(--panel) 86%, transparent); border: 1px solid var(--border-soft); border-radius: 12px; box-shadow: 0 12px 45px color-mix(in srgb, #000 4%, transparent); }
.privacy-lock { display: grid; width: 30px; height: 30px; place-items: center; color: #35a86b; background: color-mix(in srgb, #35a86b 11%, transparent); border-radius: 8px; font-size: 12px; }
.privacy-banner div { display: flex; flex-wrap: wrap; gap: 5px 9px; }
.privacy-banner strong { font-size: 11px; }
.privacy-banner div span { color: var(--muted); font-size: 11px; }
.privacy-badge { padding: 5px 8px; color: #278554; background: color-mix(in srgb, #35a86b 9%, transparent); border: 1px solid color-mix(in srgb, #35a86b 22%, transparent); border-radius: 999px; font-size: 9px; font-weight: 680; white-space: nowrap; }
.library-section-head { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: 20px; }
.library-section-head h2 { margin: 0 0 4px; font-size: 19px; letter-spacing: -.025em; }
.library-section-head p { margin: 0; color: var(--muted); font-size: 10px; }
.library-controls { display: flex; align-items: center; gap: 8px; }
.library-search { display: flex; width: min(260px, 38vw); height: 34px; align-items: center; gap: 7px; padding: 0 10px; color: var(--muted); background: var(--panel); border: 1px solid var(--border); border-radius: 7px; }
.library-search input { width: 100%; min-width: 0; color: var(--text); background: transparent; border: 0; outline: 0; font-size: 11px; }
.project-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.project-card { min-width: 0; overflow: hidden; background: color-mix(in srgb, var(--panel) 92%, transparent); border: 1px solid var(--border); border-radius: 12px; box-shadow: 0 12px 38px color-mix(in srgb, #000 4%, transparent); transition: border-color .18s ease, transform .18s ease, box-shadow .18s ease; }
.project-card:hover { border-color: color-mix(in srgb, var(--selection) 36%, var(--border)); transform: translateY(-2px); box-shadow: 0 18px 42px color-mix(in srgb, #000 9%, transparent); }
.project-open { display: block; width: 100%; padding: 0; color: inherit; background: transparent; border: 0; text-align: left; }
.project-preview { position: relative; display: block; height: 150px; overflow: hidden; background: linear-gradient(145deg, color-mix(in srgb, var(--selection) 7%, var(--panel-active)), var(--panel)); border-bottom: 1px solid var(--border-soft); }
.project-preview::before { content: ""; position: absolute; inset: 0; opacity: .4; background-image: linear-gradient(var(--border-soft) 1px, transparent 1px), linear-gradient(90deg, var(--border-soft) 1px, transparent 1px); background-size: 18px 18px; }
.project-preview i { position: absolute; display: block; width: 58px; height: 28px; background: var(--panel-raised); border: 1px solid color-mix(in srgb, var(--selection) 30%, var(--border)); border-radius: 6px; box-shadow: 0 7px 15px color-mix(in srgb, #000 8%, transparent); }
.project-preview i:nth-child(1) { left: 12%; top: 38%; }
.project-preview i:nth-child(2) { left: 42%; top: 20%; border-radius: 50%; }
.project-preview i:nth-child(3) { right: 10%; top: 55%; transform: rotate(45deg); border-radius: 4px; }
.project-preview b { position: absolute; height: 1px; background: color-mix(in srgb, var(--selection) 55%, var(--border)); transform-origin: left; }
.project-preview b:nth-of-type(1) { left: 29%; top: 47%; width: 25%; transform: rotate(-24deg); }
.project-preview b:nth-of-type(2) { left: 57%; top: 36%; width: 30%; transform: rotate(30deg); }
.project-card-copy { display: flex; flex-direction: column; gap: 4px; padding: 14px 14px 11px; }
.project-card-copy strong { overflow: hidden; font-size: 12px; text-overflow: ellipsis; white-space: nowrap; }
.project-card-copy small { color: var(--muted); font-size: 9px; }
.project-card-footer { display: flex; min-height: 39px; align-items: center; justify-content: space-between; gap: 8px; padding: 5px 8px 5px 14px; color: var(--muted); border-top: 1px solid var(--border-soft); font-size: 9px; }
.project-card-actions { display: flex; align-items: center; gap: 1px; }
.project-card-actions .btn { min-height: 26px; padding-inline: 6px; font-size: 9px; }
.project-delete:hover { color: #d44f5b; }
.library-empty { padding: 70px 20px; text-align: center; background: color-mix(in srgb, var(--panel) 55%, transparent); border: 1px dashed var(--border); border-radius: 13px; }
.library-empty[hidden] { display: none; }
.empty-orbit { position: relative; display: inline-block; width: 76px; height: 48px; margin-bottom: 16px; }
.empty-orbit::before, .empty-orbit::after { content: ""; position: absolute; left: 50%; top: 50%; width: 68px; height: 31px; border: 1px solid color-mix(in srgb, var(--selection) 32%, var(--border)); border-radius: 50%; transform: translate(-50%, -50%) rotate(14deg); }
.empty-orbit::after { transform: translate(-50%, -50%) rotate(-14deg); }
.empty-orbit i { position: absolute; z-index: 1; width: 7px; height: 7px; background: var(--selection); border: 2px solid var(--panel); border-radius: 50%; }
.empty-orbit i:nth-child(1) { left: 7px; top: 21px; }.empty-orbit i:nth-child(2) { left: 35px; top: 5px; }.empty-orbit i:nth-child(3) { right: 7px; bottom: 7px; }
.library-empty h3 { margin: 0 0 7px; font-size: 14px; }
.library-empty p { margin: 0 auto 17px; color: var(--muted); font-size: 11px; }
.library-no-results { grid-column: 1 / -1; padding: 44px; color: var(--muted); border: 1px dashed var(--border); border-radius: 11px; text-align: center; font-size: 11px; }
.library-footer { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 20px clamp(20px, 5vw, 72px); color: var(--muted); border-top: 1px solid var(--border-soft); font-size: 9px; }
.library-name-field { display: flex; flex-direction: column; gap: 7px; color: var(--muted); font-size: 10px; }
.library-name-field input { width: 100%; }

@media (max-width: 840px) {
  .library-hero { grid-template-columns: 1fr; align-items: start; }
  .library-new-button { justify-self: start; }
  .project-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 540px) {
  .library-header { min-height: 58px; padding-inline: 14px; }
  .privacy-chip { display: none; }
  .library-main { width: calc(100% - 28px); padding: 44px 0 48px; }
  .library-hero { gap: 22px; }
  .library-hero h1 { font-size: 42px; }
  .library-new-button { width: 100%; }
  .privacy-banner { grid-template-columns: auto 1fr; margin: 28px 0 42px; }
  .privacy-badge { display: none; }
  .library-section-head { align-items: stretch; flex-direction: column; }
  .library-controls { display: grid; grid-template-columns: 1fr auto; }
  .library-search { width: 100%; }
  .project-grid { grid-template-columns: 1fr; }
  .project-preview { height: 138px; }
  .library-footer { align-items: flex-start; flex-direction: column; }
}

@keyframes gradient-scan {
  from { background-position: 180% 0; }
  to { background-position: -180% 0; }
}

@keyframes ambient-drift {
  from { transform: translate3d(-2%, -1%, 0) rotate(-2deg) scale(1); }
  to { transform: translate3d(3%, 2%, 0) rotate(2deg) scale(1.05); }
}

@keyframes halftone-drift {
  from { transform: translate3d(-1.5%, 0, 0); }
  to { transform: translate3d(1.5%, -1%, 0); }
}

@keyframes cursor-pulse {
  0%, 48% { opacity: 1; }
  49%, 100% { opacity: .3; }
}

@keyframes premium-sheen {
  0%, 58% { background-position: 120% 0, 0 0; }
  82%, 100% { background-position: -120% 0, 0 0; }
}

@keyframes context-in {
  from { opacity: 0; transform: translate(-50%, calc(-100% + 5px)) scale(.98); }
  to { opacity: 1; transform: translate(-50%, -100%) scale(1); }
}

@media (max-width: 1060px) {
  .toolbar-separator { display: none; }
  .document-title { width: 140px; }
  .brand-badge { display: none; }
}

@media (max-width: 840px) {
  :root { --toolbar-height: 84px; }
  #app { grid-template-columns: 1fr; grid-template-rows: var(--toolbar-height) 82px minmax(0, 1fr) 25px; }
  .toolbar { align-content: center; flex-wrap: wrap; overflow: visible; }
  .document-title { width: 155px; }
  .toolbar-spacer { display: none; }
  .shape-panel { grid-column: 1; grid-row: 2; border-right: 0; border-bottom: 1px solid var(--border); overflow-x: auto; overflow-y: hidden; }
  .shape-panel .panel-heading { display: none; }
  .shape-search { display: none; }
  .shape-list { display: flex; width: max-content; height: 81px; padding: 6px; }
  .shape-item { width: 70px; height: 68px; }
  .canvas-shell { grid-column: 1; grid-row: 3; }
  .properties-panel { position: absolute; right: 8px; top: 94px; bottom: 33px; width: min(228px, calc(100vw - 16px)); border: 1px solid var(--border); border-radius: 7px; box-shadow: var(--shadow); }
  .command-trigger { display: none; }
  .statusbar { grid-row: 4; }
}

@media (max-width: 540px) {
  :root { --toolbar-height: 118px; }
  .toolbar {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    grid-template-rows: 32px 36px 32px;
    align-items: center;
    gap: 3px 5px;
    padding: 5px;
  }
  .toolbar button { font-size: 11px; }
  .brand-mark { grid-column: 1; grid-row: 1; }
  .document-title { grid-column: 2; grid-row: 1; width: 100%; min-width: 0; }
  .toolbar > .tool-group:not(.tool-pills) { grid-column: 3; grid-row: 1; }
  .tool-pills { grid-column: 1 / -1; grid-row: 2; width: 100%; }
  .tool-pills button { flex: 1 1 0; min-width: 0; min-height: 32px; padding-inline: 4px; }
  .toolbar-actions {
    display: grid;
    grid-column: 1 / -1;
    grid-row: 3;
    grid-template-columns: 1fr 1fr .72fr 32px 32px 32px;
    gap: 2px;
    width: 100%;
  }
  .toolbar-actions > * { min-width: 0; }
  .toolbar-actions .dropdown-toggle { width: 100%; min-height: 30px; padding-inline: 3px; white-space: nowrap; }
  .toolbar-actions > .dropdown:nth-child(-n + 2) .dropdown-menu { right: auto; left: 0; }
  .brand-mark span:last-child, #theme-label, .toolbar-actions .menu-caret { display: none; }
  .dropdown-menu { max-width: calc(100vw - 12px); }
  .properties-panel { top: 125px; }
  #canvas-size-status { display: none; }
  .settings-layout { grid-template-columns: 1fr; min-height: 0; }
  .settings-tabs { flex-direction: row; overflow-x: auto; border-right: 0; border-bottom: 1px solid var(--border-soft); }
  .settings-tabs .tab.active { box-shadow: inset 0 -2px var(--selection); }
  .settings-panels { padding: 13px; }
  .theme-card-grid { gap: 4px; }
  .theme-card { padding: 5px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}

:root[data-reduce-motion="true"] *,
:root[data-reduce-motion="true"] *::before,
:root[data-reduce-motion="true"] *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }