:root {
  font-family: Inter, "Segoe UI", ui-sans-serif, system-ui, -apple-system, sans-serif;
  color: #20242b;
  background: #e8ebf0;
  font-synthesis: none;
  --border: #d9dee7;
  --panel: #ffffff;
  --panel-soft: #f7f8fa;
  --text-muted: #697386;
  --accent: #2d6cdf;
  --accent-soft: #e9f0ff;
}

* { box-sizing: border-box; }
html, body, #root { width: 100%; height: 100%; margin: 0; overflow: hidden; }
button, input, textarea { font: inherit; }
button { color: inherit; }

.editor-shell {
  width: 100%;
  height: 100%;
  display: grid;
  grid-template-columns: 228px minmax(0, 1fr) 272px;
  grid-template-rows: 38px 40px minmax(0, 1fr) 27px;
  overflow: hidden;
  background: #e8ebf0;
}

.window-bar {
  grid-column: 1 / 4;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 0 8px;
  background: #f9fafb;
  border-bottom: 1px solid var(--border);
  user-select: none;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 23px;
  height: 23px;
  border-radius: 6px;
  background: #202631;
  color: #f0bd58;
  font-weight: 800;
  font-size: 13px;
}

.window-bar strong { font-size: 12.5px; white-space: nowrap; }
.document-title {
  width: 210px;
  margin-left: 10px;
  border: 1px solid transparent;
  border-radius: 5px;
  padding: 4px 7px;
  background: transparent;
  font-size: 12px;
  color: #414956;
}
.document-title:hover, .document-title:focus { background: #fff; border-color: #c9d0dc; outline: none; }
.save-state { margin-left: auto; color: #667085; font-size: 11px; }
.window-action {
  width: 34px;
  height: 27px;
  border: 0;
  border-radius: 5px;
  background: transparent;
  font-size: 20px;
  line-height: 1;
}
.window-action:hover { color: #fff; background: #d83b3b; }

.menu-toolbar {
  grid-column: 1 / 4;
  display: grid;
  grid-template-columns: 228px minmax(0, 1fr) 272px;
  align-items: center;
  min-width: 0;
  background: #fff;
  border-bottom: 1px solid var(--border);
  z-index: 10;
}
.menu-group { display: flex; align-items: center; gap: 1px; padding-left: 6px; }
.menu-wrap { position: relative; }
.menu-button {
  height: 29px;
  padding: 0 9px;
  border: 0;
  border-radius: 5px;
  background: transparent;
  font-size: 12px;
}
.menu-button:hover:not(:disabled) { background: #eef1f5; }
.menu-button:disabled { opacity: .45; }
.dropdown-menu {
  position: absolute;
  top: 31px;
  left: 0;
  width: 224px;
  padding: 5px;
  border: 1px solid #cfd5df;
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 12px 36px rgba(25, 33, 46, .18);
  z-index: 50;
}
.dropdown-menu button {
  display: flex;
  justify-content: space-between;
  width: 100%;
  padding: 8px 9px;
  border: 0;
  border-radius: 5px;
  background: transparent;
  text-align: left;
  font-size: 12px;
}
.dropdown-menu button:hover { background: #eef3fb; }
kbd { color: #7b8494; font-size: 10px; }
.menu-separator { height: 1px; margin: 4px; background: #e5e8ee; }

.tool-strip { display: flex; justify-content: center; align-items: center; gap: 3px; min-width: 0; }
.tool-button {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  padding: 0;
  border: 1px solid transparent;
  border-radius: 6px;
  background: transparent;
}
.tool-button:hover:not(:disabled) { background: #eef1f5; border-color: #e1e5ec; }
.tool-button.active { color: #fff; background: #2d6cdf; border-color: #225bbf; }
.tool-button:disabled { opacity: .35; }
.tool-icon { font-size: 17px; line-height: 1; }
.toolbar-divider { width: 1px; height: 20px; margin: 0 5px; background: #dfe3e9; }
.toolbar-actions { display: flex; justify-content: flex-end; align-items: center; gap: 6px; padding-right: 8px; }
.secondary-button, .primary-button, .wide-button {
  min-height: 28px;
  padding: 0 11px;
  border-radius: 6px;
  border: 1px solid #cbd2dd;
  background: #fff;
  font-size: 12px;
}
.secondary-button:hover, .wide-button:hover { background: #f1f4f8; }
.primary-button { color: #fff; border-color: #225bbf; background: #2d6cdf; }
.primary-button:hover { background: #245fc7; }

.left-panel, .right-panel {
  min-height: 0;
  background: var(--panel);
  overflow: hidden;
}
.left-panel { border-right: 1px solid var(--border); }
.right-panel { border-left: 1px solid var(--border); }
.canvas-area { min-width: 0; min-height: 0; position: relative; overflow: hidden; }
.design-canvas { width: 100%; height: 100%; display: block; touch-action: none; outline: none; }

.panel-tabs {
  display: flex;
  height: 38px;
  padding: 0 8px;
  border-bottom: 1px solid #e7e9ee;
  background: #fbfcfd;
}
.panel-tabs button {
  flex: 1;
  border: 0;
  border-bottom: 2px solid transparent;
  background: transparent;
  color: #697386;
  font-size: 11.5px;
}
.panel-tabs button.active { color: #20242b; border-bottom-color: #2d6cdf; font-weight: 600; }
.right-tabs { padding: 0 4px; }

.page-row {
  display: flex;
  align-items: center;
  gap: 7px;
  height: 34px;
  padding: 0 8px;
  border-bottom: 1px solid #eceef2;
  font-size: 11.5px;
}
.page-row strong { flex: 1; }
.page-row button { width: 24px; height: 24px; border: 0; border-radius: 4px; background: transparent; }
.page-row button:hover { background: #edf0f4; }
.layer-list { height: calc(100% - 108px); overflow: auto; padding: 4px; }
.layer-row {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr) auto;
  align-items: center;
  width: 100%;
  height: 29px;
  padding: 0 7px;
  border: 0;
  border-radius: 5px;
  background: transparent;
  text-align: left;
  font-size: 11.5px;
}
.layer-row:hover { background: #f0f3f7; }
.layer-row.selected { background: var(--accent-soft); color: #154da5; }
.layer-type { text-align: center; font-weight: 600; }
.layer-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.layer-flags { color: #667085; }
.layer-actions {
  display: flex;
  justify-content: flex-end;
  gap: 3px;
  height: 36px;
  padding: 4px 6px;
  border-top: 1px solid #e8ebf0;
}
.layer-actions button {
  width: 28px;
  border: 0;
  border-radius: 5px;
  background: transparent;
}
.layer-actions button:hover:not(:disabled) { background: #eef1f5; }
.layer-actions button:disabled { opacity: .3; }

.inspector { height: calc(100% - 38px); overflow: auto; }
.property-section { padding: 11px; border-bottom: 1px solid #e8ebf0; }
.property-heading { display: flex; align-items: center; justify-content: space-between; margin-bottom: 9px; font-size: 11.5px; }
.property-heading span { color: var(--text-muted); font-size: 10.5px; text-transform: capitalize; }
.wide-input, .property-section textarea {
  width: 100%;
  border: 1px solid #d7dce5;
  border-radius: 5px;
  background: #fff;
  padding: 6px 7px;
  font-size: 11.5px;
  outline: none;
}
.wide-input:focus, .property-section textarea:focus, .property-grid input:focus { border-color: #6e9bf0; box-shadow: 0 0 0 2px rgba(45, 108, 223, .12); }
.property-section textarea { min-height: 66px; resize: vertical; }
.inline-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 5px; margin-top: 7px; }
.inline-actions button {
  height: 27px;
  border: 1px solid #d8dde5;
  border-radius: 5px;
  background: #fff;
  font-size: 10.5px;
}
.inline-actions button.pressed { color: #1d57b1; border-color: #9ebcf1; background: #eef4ff; }
.property-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.property-grid label {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  align-items: center;
  height: 29px;
  border: 1px solid #dce0e7;
  border-radius: 5px;
  background: #fbfcfd;
  overflow: hidden;
}
.property-grid label span { padding-left: 7px; color: #717b8c; font-size: 10px; }
.property-grid input { width: 100%; height: 100%; border: 0; background: transparent; outline: none; font-size: 11px; }
.color-row, .range-row {
  display: grid;
  grid-template-columns: 52px 28px minmax(0, 1fr);
  align-items: center;
  gap: 6px;
  min-height: 31px;
  font-size: 11px;
}
.color-row input[type="color"] { width: 26px; height: 22px; padding: 1px; border: 1px solid #cfd5df; border-radius: 4px; background: #fff; }
.color-row input:not([type="color"]) { min-width: 0; height: 25px; border: 1px solid #dce0e7; border-radius: 5px; padding: 0 6px; font-size: 10.5px; }
.range-row { grid-template-columns: 52px minmax(0, 1fr) 36px; }
.range-row input { width: 100%; }
.range-row output { text-align: right; color: #657084; font-size: 10.5px; }
.export-section { border-bottom: 0; }
.wide-button { width: 100%; min-height: 31px; }

.empty-panel {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 7px;
  height: calc(100% - 38px);
  padding: 24px;
  color: #687386;
  text-align: center;
  font-size: 11px;
}
.empty-panel strong { color: #394150; font-size: 12px; }
.empty-icon { display: grid; place-items: center; width: 42px; height: 42px; border-radius: 11px; background: #f0f3f7; color: #586579; font-size: 20px; }
.inspector-empty { height: calc(100% - 38px); }

.status-bar {
  grid-column: 1 / 4;
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
  padding: 0 6px 0 9px;
  border-top: 1px solid #d6dbe4;
  background: #f8f9fb;
  color: #697386;
  font-size: 10.5px;
  user-select: none;
}
.status-spacer { flex: 1; }
.status-bar button { min-width: 24px; height: 21px; padding: 0 5px; border: 0; border-radius: 4px; background: transparent; }
.status-bar button:hover { background: #e8ecf2; }
.status-bar .zoom-display { min-width: 52px; }

@media (max-width: 900px) {
  .editor-shell { grid-template-columns: 190px minmax(0, 1fr) 236px; }
  .menu-toolbar { grid-template-columns: 190px minmax(0, 1fr) 236px; }
  .document-title { width: 140px; }
  .save-state { display: none; }
}

@media (max-width: 680px) {
  .editor-shell { grid-template-columns: 1fr; }
  .menu-toolbar { grid-template-columns: 1fr; }
  .menu-group, .toolbar-actions, .left-panel, .right-panel { display: none; }
  .tool-strip { grid-column: 1; }
  .canvas-area { grid-column: 1; }
  .status-bar { grid-column: 1; }
  .window-bar strong { display: none; }
  .document-title { flex: 1; width: auto; }
}

.hidden { display: none !important; }

.canvas-hint {
  position: absolute;
  left: 50%;
  bottom: 14px;
  transform: translateX(-50%);
  max-width: min(560px, calc(100% - 28px));
  padding: 7px 11px;
  border: 1px solid rgba(47, 62, 84, .18);
  border-radius: 7px;
  background: rgba(255, 255, 255, .94);
  box-shadow: 0 6px 20px rgba(26, 35, 50, .12);
  color: #4e596b;
  font-size: 11px;
  pointer-events: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.hidden { display: none !important; }
.pen-icon { transform: rotate(-20deg); }

.property-grid input[readonly] {
  color: #8992a3;
  background: #f4f6f8;
  cursor: default;
}

.vector-mode-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5px;
  margin-bottom: 7px;
}
.vector-mode-grid button {
  height: 28px;
  border: 1px solid #d8dde5;
  border-radius: 5px;
  background: #fff;
  font-size: 10.5px;
}
.vector-mode-grid button:hover:not(:disabled),
.inline-actions button:hover:not(:disabled) { background: #f1f4f8; }
.vector-mode-grid button.pressed {
  color: #1d57b1;
  border-color: #9ebcf1;
  background: #eef4ff;
}
.inline-actions button:disabled,
.wide-button:disabled { opacity: .42; cursor: default; }
.danger-soft { margin-top: 7px; color: #9f2f2f; }
.danger-soft:hover:not(:disabled) { background: #fff1f1; border-color: #efbcbc; }

.stroke-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  margin-top: 7px;
}
.stroke-options label {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  align-items: center;
  min-height: 29px;
  border: 1px solid #dce0e7;
  border-radius: 5px;
  background: #fbfcfd;
  overflow: hidden;
}
.stroke-options label span { padding-left: 7px; color: #717b8c; font-size: 10px; }
.stroke-options select,
.stroke-options input {
  width: 100%;
  height: 100%;
  min-width: 0;
  border: 0;
  background: transparent;
  outline: none;
  font-size: 10.5px;
  padding: 0 5px;
}
.stroke-options .dash-field { grid-column: 1 / -1; }


/* v0.5 layout foundation and full dark theme */
:root {
  --app-bg: #e8ebf0;
  --window-bg: #f9fafb;
  --toolbar-bg: #ffffff;
  --canvas-bg: #e8ebf0;
  --input-bg: #ffffff;
  --hover-bg: #eef1f5;
  --text: #20242b;
  --text-soft: #414956;
  --shadow: rgba(25, 33, 46, .18);
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --border: #343a46;
  --panel: #22262e;
  --panel-soft: #292e38;
  --text-muted: #98a2b3;
  --accent: #5b8def;
  --accent-soft: #263a60;
  --app-bg: #171a20;
  --window-bg: #1c2027;
  --toolbar-bg: #22262e;
  --canvas-bg: #171a20;
  --input-bg: #2a2f39;
  --hover-bg: #303641;
  --text: #e8ecf3;
  --text-soft: #c6ceda;
  --shadow: rgba(0, 0, 0, .42);
  color: var(--text);
  background: var(--app-bg);
}

.editor-shell { background: var(--app-bg); color: var(--text); }
.window-bar { background: var(--window-bg); border-color: var(--border); }
.menu-toolbar { background: var(--toolbar-bg); border-color: var(--border); }
.document-title { color: var(--text-soft); }
.document-title:hover, .document-title:focus { background: var(--input-bg); border-color: var(--border); }
.menu-button:hover:not(:disabled), .tool-button:hover:not(:disabled), .secondary-button:hover, .wide-button:hover,
.page-row button:hover, .layer-actions button:hover:not(:disabled), .status-bar button:hover { background: var(--hover-bg); }
.dropdown-menu { border-color: var(--border); background: var(--panel); box-shadow: 0 12px 36px var(--shadow); }
.dropdown-menu button:hover { background: var(--hover-bg); }
.menu-separator, .toolbar-divider, .panel-tabs, .page-row, .layer-actions, .property-section { border-color: var(--border); }
.panel-tabs { background: var(--panel-soft); }
.panel-tabs button.active { color: var(--text); }
.secondary-button, .wide-button, .inline-actions button, .vector-mode-grid button {
  border-color: var(--border); background: var(--input-bg); color: var(--text);
}
.status-bar { border-color: var(--border); background: var(--window-bg); color: var(--text-muted); }
.wide-input, .property-section textarea, .property-grid label, .stroke-options label, .select-row, .check-row {
  border-color: var(--border); background: var(--input-bg); color: var(--text);
}
.wide-input, .property-section textarea, .property-grid input, .stroke-options select, .stroke-options input, .select-row select { color: var(--text); }
.property-grid label span, .stroke-options label span, .select-row span { color: var(--text-muted); }
.color-row input:not([type="color"]) { border-color: var(--border); background: var(--input-bg); color: var(--text); }
.empty-panel strong { color: var(--text); }
.empty-icon { background: var(--panel-soft); color: var(--text-muted); }
.canvas-hint { border-color: var(--border); background: color-mix(in srgb, var(--panel) 94%, transparent); color: var(--text-soft); box-shadow: 0 6px 20px var(--shadow); }
.property-grid input[readonly] { color: var(--text-muted); background: var(--panel-soft); }

.theme-button { width: 31px; padding: 0; font-size: 15px; }
.layer-list { height: calc(100% - 108px); }
.layer-row {
  grid-template-columns: 16px 20px minmax(0, 1fr) auto;
  padding-left: calc(5px + var(--layer-depth, 0) * 15px);
  cursor: default;
}
.layer-row:hover { background: var(--hover-bg); }
.layer-row.selected { background: var(--accent-soft); color: var(--text); }
.layer-collapse { width: 16px; height: 24px; padding: 0; border: 0; background: transparent; color: var(--text-muted); font-size: 10px; }
.layer-collapse.invisible { visibility: hidden; }
.layer-row.dragging { opacity: .45; }
.layer-row.drop-before { box-shadow: inset 0 2px 0 var(--accent); }
.layer-row.drop-inside { outline: 1px solid var(--accent); background: var(--accent-soft); }

.asset-panel { display: grid; gap: 7px; padding: 9px; }
.asset-card {
  display: grid; grid-template-columns: 32px 1fr; grid-template-rows: auto auto; column-gap: 8px;
  align-items: center; padding: 9px; border: 1px solid var(--border); border-radius: 7px;
  background: var(--input-bg); color: var(--text); text-align: left;
}
.asset-card:hover { background: var(--hover-bg); }
.asset-card > span { grid-row: 1 / 3; font-size: 20px; text-align: center; }
.asset-card strong { font-size: 11.5px; }
.asset-card small { color: var(--text-muted); font-size: 9.5px; }

.layout-fields { display: grid; gap: 6px; margin-top: 7px; }
.muted-controls { opacity: .55; }
.select-row {
  display: grid; grid-template-columns: 74px minmax(0, 1fr); align-items: center;
  min-height: 29px; border: 1px solid var(--border); border-radius: 5px; overflow: hidden;
}
.select-row span { padding-left: 7px; font-size: 10px; }
.select-row select { width: 100%; height: 100%; border: 0; background: transparent; outline: none; font-size: 10.5px; padding: 0 5px; }
.check-row { display: flex; align-items: center; gap: 7px; min-height: 29px; padding: 0 7px; border: 1px solid var(--border); border-radius: 5px; font-size: 10.5px; }
.check-row input { margin: 0; }

:root[data-theme="dark"] .window-action:hover { background: #d84a4a; color: #fff; }
:root[data-theme="dark"] .primary-button { background: #4f7fdd; border-color: #6b95e5; }
:root[data-theme="dark"] .tool-button.active { background: #4f7fdd; border-color: #6b95e5; }
:root[data-theme="dark"] .danger-soft { color: #ff9f9f; }