:root {
  /* === COLORS === */
  --bg: #ffffff;
  --text: #1d1d1f;
  --text-muted: #6a6a6e;
  --surface: #f7f7f9;
  --surface-strong: #eff0f3;
  --surface-alt: #e8e8ed;
  --border: #d5d5d7;
  --border-weak: #e0e0e2;
  
  /* Accent colors */
  --accent: #007aff;
  --accent-weak: rgba(0, 122, 255, 0.12);
  --success: #34c759;
  --warning: #ff9500;
  --error: #ff3b30;
  --info: #00b4d8;
  
  /* Component backgrounds */
  --menu-hover: rgba(0, 0, 0, 0.06);
  --menu-active: #e8e8ed;
  --panel-bg: #ffffff;
  --dock-bg: #ffffff;
  --panel-border: #d9d9e3;
  --status-bg: #f7f7f9;
  --canvas-bg: #ffffff;
  --minimap-bg: #101418;
  
  /* === TYPOGRAPHY === */
  --font-size-xs: 11px;
  --font-size-sm: 12px;
  --font-size-base: 13px;
  --font-size-lg: 14px;
  --font-size-xl: 16px;
  --font-size-2xl: 18px;
  
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  /* === SPACING === */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 12px;
  --spacing-lg: 16px;
  --spacing-xl: 20px;
  --spacing-2xl: 24px;
  
  /* === SHADOWS (Shadow System) === */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 28px rgba(0, 0, 0, 0.10);
  --shadow-xl: 0 16px 40px rgba(0, 0, 0, 0.12);
  
  /* === TRANSITIONS === */
  --transition-fast: 120ms ease;
  --transition-base: 150ms ease;
  --transition-slow: 200ms ease;
  
  /* === BORDER RADIUS === */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 10px;
  --radius-xl: 12px;
  --radius-2xl: 16px;
  
  /* === DOCK & PANEL SIZING === */
  --dock-collapsed-size: 28px;
  --splitter: rgba(0, 0, 0, 0.25);
  --splitter-active: rgba(0, 122, 255, 0.55);
  --hint: rgba(0, 122, 255, 0.2);
  
  /* === BUTTON VARIABLES (Generic for all buttons) === */
  --button-height: 32px;
  --button-radius: var(--radius-lg);
  --button-padding: 8px 12px;
  --button-border: 1px solid var(--border);
  --button-bg: var(--surface);
  --button-bg-hover: var(--surface-strong);
  --button-transition: all var(--transition-fast);
  --button-shadow: var(--shadow-xs);
  --button-shadow-hover: var(--shadow-sm);
  
  /* === DOCK BUTTON VARIABLES (Override for dock buttons) === */
  --dock-button-width: 36px;
  --dock-button-height: 36px;
  --dock-button-radius: var(--radius-lg);
  --dock-button-border: 1px solid rgba(0, 0, 0, 0.06);
  --dock-button-bg: var(--surface);
  --dock-button-hover-bg: var(--surface-strong);
  --dock-button-transition: all var(--transition-fast);
  --dock-button-shadow: var(--shadow-xs);
  --dock-button-shadow-hover: var(--shadow-sm);
  --dock-icon-width: 22px;
  --dock-icon-height: 22px;
  
  /* === INPUT FIELD VARIABLES === */
  --input-height: 32px;
  --input-radius: var(--radius-md);
  --input-padding: 8px 12px;
  --input-border: 1px solid var(--border);
  --input-bg: var(--surface);
  --input-transition: all var(--transition-fast);
  
  /* === PANEL VARIABLES === */
  --panel-padding: var(--spacing-lg);
  --panel-gap: var(--spacing-md);
  --panel-title-size: var(--font-size-lg);
  --panel-title-weight: var(--font-weight-semibold);
  --panel-shadow: var(--shadow-md);
}

body.dark {
  /* === COLORS === */
  --bg: #0f0f11;
  --text: #f4f4f6;
  --text-muted: #9aa0a9;
  --surface: #1a1a1d;
  --surface-strong: #262629;
  --surface-alt: #323237;
  --border: #3a3a3f;
  --border-weak: #2a2a2f;
  
  /* Accent colors */
  --accent: #4aa3ff;
  --accent-weak: rgba(74, 163, 255, 0.15);
  
  /* Component backgrounds */
  --menu-hover: rgba(255, 255, 255, 0.08);
  --menu-active: rgba(255, 255, 255, 0.12);
  --panel-bg: #151a20;
  --dock-bg: #151a20;
  --panel-border: #2a2f38;
  --status-bg: #1a1a1d;
  --canvas-bg: #1E1E1E;
  --minimap-bg: #0b0e12;
  
  /* === SHADOWS (More subtle in dark mode) === */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.15);
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.20);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.25);
  --shadow-lg: 0 10px 28px rgba(0, 0, 0, 0.30);
  --shadow-xl: 0 16px 40px rgba(0, 0, 0, 0.35);
  
  --splitter: rgba(255, 255, 255, 0.15);
  --splitter-active: rgba(74, 163, 255, 0.65);
  --hint: rgba(74, 163, 255, 0.25);
  
  /* === DOCK BUTTON VARIABLES (Dark mode overrides) === */
  --dock-button-border: 1px solid rgba(255, 255, 255, 0.12);
  --dock-button-bg: #1e1e21;
  --dock-button-hover-bg: #2a2a2e;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', sans-serif;
  overflow: hidden;
  user-select: none;
  background: var(--bg);
  color: var(--text);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-regular);
}

/* === GENERIC COMPONENT BASE STYLES === */

/* Generic button base - use for all button types */
.btn,
button {
  height: var(--button-height);
  padding: var(--button-padding);
  border-radius: var(--button-radius);
  border: var(--button-border);
  background: var(--button-bg);
  color: var(--text);
  cursor: pointer;
  transition: var(--button-transition);
  box-shadow: var(--button-shadow);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
}

.btn:hover,
button:hover {
  background: var(--button-bg-hover);
  box-shadow: var(--button-shadow-hover);
  transform: translateY(-1px);
}

.btn:active,
button:active {
  transform: translateY(0);
  box-shadow: var(--button-shadow);
}

.btn:disabled,
button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

/* Generic input field base */
input[type="text"],
input[type="number"],
input[type="email"],
input[type="password"],
select,
textarea {
  height: var(--input-height);
  padding: var(--input-padding);
  border-radius: var(--input-radius);
  border: var(--input-border);
  background: var(--input-bg);
  color: var(--text);
  font-size: var(--font-size-base);
  font-family: inherit;
  transition: var(--input-transition);
}

input[type="text"]:hover,
input[type="number"]:hover,
input[type="email"]:hover,
input[type="password"]:hover,
select:hover,
textarea:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-sm);
}

input[type="text"]:focus,
input[type="number"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-weak);
  background: var(--bg);
}

/* === GENERIC DOCK BUTTON === */
.dock-button,
.levels-btn,
.minimap-btn {
  width: var(--dock-button-width);
  height: var(--dock-button-height);
  border-radius: var(--dock-button-radius);
  border: var(--dock-button-border);
  background: var(--dock-button-bg);
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--dock-button-transition);
  box-shadow: var(--dock-button-shadow);
}

.dock-button:hover,
.levels-btn:hover,
.minimap-btn:hover {
  background: var(--dock-button-hover-bg);
  box-shadow: var(--dock-button-shadow-hover);
  transform: translateY(-1px);
}

.dock-button:active,
.levels-btn:active,
.minimap-btn:active {
  transform: translateY(0);
  box-shadow: var(--dock-button-shadow);
}

.dock-button:disabled,
.levels-btn:disabled,
.minimap-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.dock-button svg,
.levels-btn svg,
.minimap-btn svg {
  width: var(--dock-icon-width);
  height: var(--dock-icon-height);
  display: block;
}

/* === END GENERIC BASE STYLES === */

/* Main layout containers */
#mainContainer {
  display: grid;
  grid-template-rows: auto 1fr auto;
  height: 100vh;
}

/* Menu bar */
#menuBar {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
  padding: var(--spacing-md) var(--spacing-lg);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-xs);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
}

#menuTitle {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-left: var(--spacing-md);
  font-weight: var(--font-weight-semibold);
  color: var(--text);
  letter-spacing: 0.2px;
}

.account-button {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  height: 30px;
  padding: 2px 10px;
  margin-left: var(--spacing-sm);
  border-radius: 999px;
  border: 1px solid var(--border-weak);
  background: var(--surface-alt);
  box-shadow: none;
}

.account-button:hover {
  background: var(--surface-strong);
  box-shadow: none;
}

#accountName {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
}

#accountVersion {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
}

.account-badge {
  font-size: 10px;
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.6px;
  text-transform: uppercase;
  padding: 2px 6px;
  border-radius: 999px;
  background: var(--warning);
  color: #111111;
}

.account-badge.admin {
  background: var(--accent);
  color: #ffffff;
}

.mode-banner {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-left: var(--spacing-sm);
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--surface-alt);
  border: 1px solid var(--border-weak);
  font-size: var(--font-size-sm);
  color: var(--text);
}

.mode-banner button {
  height: 24px;
  padding: 0 10px;
  font-size: var(--font-size-xs);
}

.app-title-icon {
  width: 18px;
  height: 18px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, #2b2b2b 0%, #5a5a5a 100%);
  position: relative;
}

.app-title-icon::after {
  content: '';
  position: absolute;
  inset: 4px;
  border: 1px solid rgba(255, 255, 255, 0.65);
  border-radius: 3px;
}

#menuSpacer {
  flex: 1;
}

#levelNameDisplay {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text-muted);
  padding: var(--spacing-xs) var(--spacing-md);
  background: var(--surface-alt);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-weak);
}

.menu {
  cursor: default;
  position: relative;
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
}

.menu:hover {
  background: var(--menu-hover);
}

/* Dropdown menus */
.menu-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  box-shadow: var(--shadow-lg);
  z-index: 1000;
  min-width: 180px;
  padding: var(--spacing-sm) 0;
  border-radius: var(--radius-xl);
  opacity: 0;
  transform: translateY(-6px) scale(0.97);
  pointer-events: none;
  transition: opacity 140ms ease-out, transform 140ms ease-out;
}

.menu-dropdown.show {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

.menu-dropdown li {
  list-style: none;
  padding: var(--spacing-sm) var(--spacing-lg);
  cursor: pointer;
  white-space: nowrap;
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: background 100ms ease;
}

.menu-dropdown li:hover {
  background: var(--menu-hover);
}

.menu-dropdown li.disabled {
  color: var(--text-muted);
  pointer-events: none;
  opacity: 0.6;
}

.menu-dropdown li.active {
  background: var(--menu-active);
  color: var(--text);
}

.menu-dropdown hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 6px 0;
}

.menu-icon {
  width: 16px;
  height: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
  flex: 0 0 16px;
}

.menu-icon svg {
  width: 16px;
  height: 16px;
  display: block;
}

.menu-shortcut {
  margin-left: auto;
  color: var(--text-muted);
  font-size: 12px;
}

.menu-check {
  margin-left: 8px;
  opacity: 0;
  transition: opacity 120ms ease;
}

.menu-dropdown li.active .menu-check {
  opacity: 1;
}

.menu-dropdown li.validation-error .menu-icon {
  color: #c0392b;
}

.menu-dropdown li.validation-warning .menu-icon {
  color: #d28b00;
}

.menu-dropdown li.validation-ok .menu-icon {
  color: #2ecc71;
}

/* Workspace layout */
#workspace {
  display: flex;
  height: 100%;
  min-height: 0;
}

#centerColumn {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
}

/* Left tool panel */
#leftPanel {
  width: 64px;
  background: var(--surface-strong);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 6px;
  overflow-y: auto;
}

/* Canvas container */
#canvasContainer {
  position: relative;
  overflow: hidden;
  background: var(--canvas-bg);
  flex: 1;
  min-height: 0;
}

#editorCanvas {
  width: 100%;
  height: 100%;
  cursor: crosshair;
  display: block;
}

#dockLayer {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: var(--dock-left-width, 0px) 1fr var(--dock-right-width, 0px);
  grid-template-rows: var(--dock-top-height, 0px) 1fr var(--dock-bottom-height, 0px);
  pointer-events: none;
  z-index: 30;
  overflow: hidden;
}

.dock-area {
  display: flex;
  pointer-events: none;
  position: relative;
}

.dock-area.area-top {
  grid-column: 2;
  grid-row: 1;
  justify-content: flex-start;
  align-items: flex-start;
}

.dock-area.area-bottom {
  grid-column: 2;
  grid-row: 3;
  justify-content: flex-start;
  align-items: flex-end;
}

.dock-area.area-left {
  grid-column: 1;
  grid-row: 1 / 4;
  justify-content: flex-start;
  align-items: flex-start;
}

.dock-area.area-right {
  grid-column: 3;
  grid-row: 1 / 4;
  justify-content: flex-end;
  align-items: flex-start;
}

.dock-stack {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
  pointer-events: auto;
  margin: var(--spacing-md);
  min-width: 200px;
  min-height: 0;
  max-width: 100%;
  max-height: 100%;
  overflow: auto;
  box-sizing: border-box;
}

.dock-stack.horizontal {
  flex-direction: row;
  align-items: stretch;
  max-height: 100%;
}

.dock-stack.vertical {
  flex-direction: column;
  align-items: stretch;
  max-width: 100%;
}

.dock-stack .panel {
  width: 100%;
  box-sizing: border-box;
  min-height: 140px;
  max-height: 100%;
}

.dock-stack.horizontal .panel {
  width: auto;
  height: 100%;
  min-width: 220px;
}

.dock-stack.vertical .panel {
  width: 100%;
}

.dock-stack.compact {
  max-width: 320px;
}

/* Bottom status bar */
#statusBar {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
  padding: var(--spacing-sm) var(--spacing-lg);
  height: 28px;
  background: var(--status-bg);
  border-top: 1px solid var(--border);
  font-size: var(--font-size-xs);
  white-space: nowrap;
  color: var(--text-muted);
  font-weight: var(--font-weight-medium);
  box-shadow: var(--shadow-xs);
}

#statusDirty {
  color: var(--error);
  font-weight: var(--font-weight-bold);
}

#statusZoom {
  cursor: pointer;
}

.status-zoom-input {
  width: 64px;
  font-size: 11px;
  padding: 2px 4px;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
}

/* Allow text selection inside validation panel */
#validationPanel, #validationPanel * {
  user-select: text;
}

/* Project panel shares same styling as other panels */
/* inherits .panel styles */

/* Panel styling */
.panel {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--panel-border);
  background: var(--dock-bg);
  border-radius: var(--radius-xl);
  padding: var(--panel-padding);
  overflow: auto;
  gap: var(--panel-gap);
  transition: flex 200ms ease-out, padding 200ms ease-out, max-height 200ms ease-out, opacity 200ms ease-out, transform 200ms ease-out;
  opacity: 1;
  transform: scaleY(1);
  transform-origin: top;
  box-shadow: var(--panel-shadow);
}

.panel h3 {
  margin: 0 0 var(--spacing-md) 0;
  font-size: var(--panel-title-size);
  font-weight: var(--panel-title-weight);
  cursor: grab;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  transition: margin 200ms ease;
  color: var(--text);
  letter-spacing: 0.3px;
  padding-bottom: var(--spacing-sm);
  border-bottom: 1px solid var(--border-weak);
}

.panel h3:active {
  cursor: grabbing;
}

.panel-toggle {
  margin-left: auto;
  border: none;
  background: rgba(0, 0, 0, 0.05);
  border-radius: var(--radius-sm);
  width: 24px;
  height: 24px;
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: transform var(--transition-base), background var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
  flex: 0 0 auto;
}

.panel-toggle:hover {
  background: var(--menu-hover);
}

.panel.collapsed {
  flex: 0 0 auto;
  padding: var(--spacing-xs);
  overflow: hidden;
  max-height: var(--dock-collapsed-size);
  height: var(--dock-collapsed-size);
  min-height: 0;
  opacity: 1;
  transform: none;
}

.panel.collapsed h3 {
  margin-bottom: 0;
  line-height: 18px;
  border-bottom: none;
  padding-bottom: 0;
}

.panel.collapsed > div {
  display: none;
}

.panel.collapsed .panel-toggle {
  transform: rotate(180deg);
}

.panel-tabs {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.tab-btn {
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: var(--radius-md);
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  color: var(--text);
  transition: background var(--transition-fast), border-color var(--transition-fast);
}

.tab-btn:hover {
  background: var(--surface-strong);
}

.tab-btn.active {
  background: var(--accent-weak);
  border-color: var(--accent);
  color: var(--accent);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

.levels-toolbar {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
  margin-bottom: var(--spacing-md);
  flex-wrap: wrap;
}

.levels-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.levels-row {
  display: grid;
  grid-template-columns: 10px 1fr auto;
  gap: var(--spacing-md);
  align-items: center;
  padding: var(--spacing-sm);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--transition-fast);
  color: var(--text);
  border: 1px solid transparent;
  font-size: var(--font-size-sm);
}

.levels-row.active {
  background: var(--accent-weak);
  border-color: var(--accent);
}

.levels-row:hover {
  background: var(--menu-hover);
}

.levels-name {
  font-size: 12px;
}

.levels-count {
  font-size: 11px;
  color: var(--text-muted);
}

.levels-dirty {
  font-size: 14px;
  color: #d35400;
  opacity: 0;
  line-height: 1;
}

.levels-row.dirty .levels-dirty {
  opacity: 1;
}

.levels-rename {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 6px;
  font-size: 12px;
  background: var(--panel-bg);
  color: var(--text);
}

.recent-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 8px;
}

.recent-row {
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 8px;
  padding: 8px 10px;
  text-align: left;
  cursor: pointer;
  color: var(--text);
}

#minimapContent {
  flex: 1 1 160px;
  min-height: 160px;
  display: flex;
}

.minimap-toolbar {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  align-items: stretch;
  margin-bottom: var(--spacing-md);
  flex: 0 0 auto;
}

.minimap-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  align-items: center;
}

.minimap-bookmarks {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.minimap-bookmark-actions {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
}

.minimap-bookmark-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  max-height: 120px;
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--spacing-sm);
  background: var(--surface);
}

.minimap-bookmark-row {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-xs);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition-fast);
  font-size: var(--font-size-xs);
}

.minimap-bookmark-row:hover {
  background: var(--menu-hover);
}

.minimap-bookmark-row.active {
  background: var(--accent-weak);
}

.minimap-bookmark-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex: 0 0 auto;
}

.minimap-bookmark-name {
  font-size: var(--font-size-xs);
  color: var(--text);
  flex: 1;
}

.minimap-bookmark-rename {
  flex: 1;
  font-size: var(--font-size-xs);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: var(--spacing-xs);
  background: var(--panel-bg);
  color: var(--text);
}

.minimap-bookmark-editor {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
  flex-wrap: wrap;
}

.minimap-bookmark-editor input,
.minimap-bookmark-editor select {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--spacing-xs);
  font-size: var(--font-size-xs);
  min-width: 0;
  flex: 1 1 120px;
}

.minimap-btn.active {
  background: var(--accent-weak);
  border-color: var(--accent);
  color: var(--accent);
}

#minimapBookmarksSelect {
  flex: 1;
  min-width: 120px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--spacing-xs);
  font-size: var(--font-size-sm);
  background: var(--panel-bg);
  color: var(--text);
}

#minimapPanel.minimap-layout-wide {
  display: grid;
  grid-template-columns: minmax(180px, 240px) 1fr;
  grid-template-rows: auto 1fr;
  grid-template-areas:
    "title title"
    "toolbar content";
  column-gap: var(--spacing-lg);
  row-gap: var(--spacing-md);
}

#minimapPanel.minimap-layout-wide h3 {
  grid-area: title;
  margin-bottom: 0;
}

#minimapPanel.minimap-layout-wide .minimap-toolbar {
  grid-area: toolbar;
  margin-bottom: 0;
}

#minimapPanel.minimap-layout-wide #minimapContent {
  grid-area: content;
  min-height: 160px;
}

#minimapPanel.minimap-layout-wide .minimap-bookmark-list {
  max-height: 96px;
}

/* Tool buttons */
/* === GENERIC DOCK BUTTON BASE STYLES === */
/* Apply to all dock buttons */
.dock-button,
.levels-btn,
.minimap-btn {
  border: var(--dock-button-border);
  background: var(--dock-button-bg);
  border-radius: var(--dock-button-radius);
  width: var(--dock-button-width);
  height: var(--dock-button-height);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--dock-button-transition);
  color: var(--text);
}

.dock-button:hover,
.levels-btn:hover,
.minimap-btn:hover {
  background: var(--dock-button-hover-bg);
  box-shadow: var(--dock-button-shadow-hover);
  transform: translateY(-1px);
}

.dock-button:active,
.levels-btn:active,
.minimap-btn:active {
  transform: translateY(0);
  box-shadow: var(--dock-button-shadow);
}

.dock-button:disabled,
.levels-btn:disabled,
.minimap-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.dock-button svg,
.levels-btn svg,
.minimap-btn svg {
  width: var(--dock-icon-width);
  height: var(--dock-icon-height);
  display: block;
}

/* === END GENERIC DOCK BUTTON STYLES === */

/* Tool buttons (left panel) */
.tool-button {
  width: 48px;
  height: 48px;
  margin-bottom: var(--spacing-md);
  border: none;
  background: var(--surface);
  position: relative;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-base);
  color: var(--text);
  box-shadow: var(--shadow-xs);
}

.tool-button:hover {
  background-color: var(--surface-strong);
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
}

.tool-button.selected {
  background-color: var(--accent);
  color: #ffffff;
  box-shadow: var(--shadow-md);
}

.tool-button.selected:hover {
  box-shadow: var(--shadow-lg);
}

.tool-button span {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
}

.tool-button svg {
  width: 22px;
  height: 22px;
  display: block;
}

.tool-button.action {
  width: 44px;
  height: 44px;
  margin-bottom: var(--spacing-sm);
}

.tool-button.action.dirty::after {
  content: '*';
  position: absolute;
  top: 4px;
  right: 6px;
  font-size: var(--font-size-lg);
  color: var(--warning);
  font-weight: var(--font-weight-bold);
}

.tool-button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.tool-button.validate.status-idle {
  color: var(--text);
}

.tool-button.validate.status-error {
  color: var(--error);
}

.tool-button.validate.status-warning {
  color: var(--warning);
}

.tool-button.validate.status-ok {
  color: var(--success);
}

.tooltip {
  display: none;
  position: absolute;
  left: 44px;
  top: 0;
  background: rgba(0, 0, 0, 0.85);
  color: #fff;
  padding: var(--spacing-xs);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  white-space: nowrap;
  pointer-events: none;
  z-index: 100;
}

.tool-button:hover .tooltip {
  display: block;
}

/* Input styles for property panel */
.property-row {
  margin-bottom: var(--spacing-lg);
}

.property-row label {
  display: block;
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-xs);
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

.property-note {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 3px;
}

.transform-toggle {
  display: flex;
  gap: 8px;
}

.transform-toggle button {
  flex: 1;
  padding: 7px 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 8px;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all 150ms ease;
  color: var(--text-muted);
}

.transform-toggle button:hover {
  background: var(--menu-hover);
  border-color: var(--border-strong);
}

.transform-toggle button.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
}

button {
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  padding: 7px 12px;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  border-radius: 8px;
  cursor: pointer;
  transition: all 150ms ease;
  color: var(--text);
}

button:hover {
  background: var(--menu-hover);
  border-color: var(--border-strong);
}

button:active {
  background: var(--menu-active);
}

select, input[type="text"], input[type="number"] {
  padding: 7px 10px;
  font-size: 13px;
  font-family: inherit;
  border: 1px solid var(--border-strong);
  background: var(--panel-bg);
  border-radius: 8px;
  color: var(--text);
  transition: all 150ms ease;
  outline: none;
}

select:hover, input[type="text"]:hover, input[type="number"]:hover {
  border-color: var(--border-strong);
}

select:focus, input[type="text"]:focus, input[type="number"]:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.1);
}

input[type="checkbox"] {
  width: 16px;
  height: 16px;
  cursor: pointer;
  accent-color: var(--accent);
}

/* Modal dialogs */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
}

.modal {
  width: 360px;
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 6px;
  padding: 12px 14px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.modal-wide {
  width: min(860px, 92vw);
}

.modal h2 {
  margin: 0 0 10px;
  font-size: 16px;
}

.modal-body {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.modal-row {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 12px;
}

.modal-actions .primary {
  background: var(--accent);
  color: #ffffff;
  border: none;
}

.modal-hint {
  margin-top: 8px;
  font-size: 12px;
  color: var(--text-muted);
}

.modal, .modal * {
  user-select: text;
}

.account-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--border-weak);
}

.account-email {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
}

.account-usage {
  flex: 1;
  min-width: 180px;
}

.usage-text {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  margin-bottom: 4px;
}

.usage-bar {
  height: 6px;
  background: var(--surface-alt);
  border-radius: 999px;
  overflow: hidden;
}

.usage-fill {
  height: 100%;
  width: 0;
  background: var(--accent);
  transition: width var(--transition-base);
}

.account-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.account-section {
  margin-top: var(--spacing-lg);
}

.cloud-list,
.admin-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  max-height: 280px;
  overflow: auto;
}

.cloud-row,
.admin-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--border-weak);
  border-radius: var(--radius-md);
  background: var(--surface);
}

.cloud-row.active {
  border-color: var(--accent);
  background: var(--accent-weak);
}

.cloud-name,
.admin-name {
  font-weight: var(--font-weight-medium);
}

.cloud-meta,
.admin-meta {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
}

.cloud-actions,
.admin-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
}

.share-result {
  margin-top: var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  word-break: break-all;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.admin-section {
  margin-top: var(--spacing-lg);
}

.admin-settings {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--spacing-sm);
}

.admin-settings input[type="checkbox"] {
  width: auto;
  height: auto;
}

.auth-overlay {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at top, rgba(0, 122, 255, 0.12), rgba(0, 0, 0, 0.7));
  z-index: 3000;
  padding: var(--spacing-lg);
}

.auth-overlay.hidden {
  display: none;
}

.auth-card {
  width: min(440px, 92vw);
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-xl);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  box-sizing: border-box;
}

.auth-card * {
  box-sizing: border-box;
}

.auth-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.auth-logo {
  width: 48px;
  height: 48px;
  border-radius: 16px;
  background: linear-gradient(135deg, #1d1d1f 0%, #4a4a4f 100%);
  position: relative;
}

.auth-logo::after {
  content: '';
  position: absolute;
  inset: 8px;
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: 10px;
}

.auth-brand h1 {
  margin: 0;
  font-size: var(--font-size-2xl);
}

.auth-brand p {
  margin: 4px 0 0;
  font-size: var(--font-size-sm);
  color: var(--text-muted);
}

.auth-message {
  min-height: 18px;
  font-size: var(--font-size-sm);
  color: var(--error);
}

.auth-busy {
  display: none;
  font-size: var(--font-size-sm);
  color: var(--text-muted);
}

.auth-overlay.busy .auth-busy {
  display: block;
}

.auth-overlay.busy .auth-card {
  opacity: 0.85;
}

.auth-screen {
  display: none;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.auth-screen.active {
  display: flex;
}

.auth-card input,
.auth-card select {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
}

.auth-actions {
  display: flex;
  gap: var(--spacing-sm);
}

.auth-primary {
  background: var(--accent);
  color: #ffffff;
  border: none;
}

.auth-primary:hover {
  background: var(--accent);
  color: #ffffff;
}

.auth-secondary {
  background: var(--surface-strong);
}

.auth-secondary:hover {
  background: var(--surface-strong);
  color: var(--text);
}

.auth-ghost {
  background: transparent;
  border: 1px dashed var(--border);
  color: var(--text-muted);
  box-shadow: none;
}

.auth-ghost:hover {
  background: transparent;
  color: var(--text);
  box-shadow: none;
}

.auth-link {
  color: var(--accent);
  font-size: var(--font-size-sm);
  text-decoration: none;
}

.auth-link:hover {
  text-decoration: underline;
}

.auth-link-button {
  background: transparent;
  border: none;
  padding: 0;
  height: auto;
  box-shadow: none;
  color: var(--accent);
  font-size: var(--font-size-sm);
  text-align: left;
}

.auth-link-button:hover {
  text-decoration: underline;
}

.auth-checkbox {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: var(--text-muted);
}

body.auth-lock {
  overflow: hidden;
}

body.auth-lock #mainContainer {
  pointer-events: none;
  filter: blur(1px);
}

.auth-terms-modal {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.55);
  z-index: 3100;
  padding: var(--spacing-lg);
}

.auth-terms-card {
  width: min(560px, 92vw);
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-xl);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  max-height: min(80vh, 720px);
  overflow: hidden;
}

.auth-terms-body {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  line-height: 1.5;
  overflow-y: auto;
  padding-right: 6px;
  flex: 1 1 auto;
  min-height: 0;
}

.auth-terms-body ul {
  padding-left: 18px;
  margin: 12px 0;
}

.auth-terms-actions {
  display: flex;
  justify-content: flex-end;
}

/* Docking hints and ghost */
.dock-resizer {
  position: absolute;
  background: transparent;
  z-index: 2;
  pointer-events: auto;
}

.dock-resizer.vertical {
  top: 0;
  bottom: 0;
  width: 8px;
  cursor: ew-resize;
}

.dock-resizer.vertical::before {
  content: '';
  position: absolute;
  left: 3px;
  top: 0;
  bottom: 0;
  width: 2px;
  border-radius: 2px;
  background: var(--splitter);
  opacity: 0.6;
}

.dock-resizer.horizontal {
  left: 0;
  right: 0;
  height: 8px;
  cursor: ns-resize;
}

.dock-resizer.horizontal::before {
  content: '';
  position: absolute;
  top: 3px;
  left: 0;
  right: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--splitter);
  opacity: 0.6;
}

.dock-resizer:hover::before {
  background: var(--splitter-active);
  opacity: 0.9;
}

.dock-splitter {
  position: relative;
}

.dock-splitter.horizontal {
  height: 4px;
  cursor: row-resize;
}

.dock-splitter.horizontal::before {
  content: '';
  position: absolute;
  left: 12px;
  right: 12px;
  top: 1px;
  height: 1px;
  border-radius: 1px;
  background: var(--splitter);
  opacity: 0.6;
}

.dock-splitter.vertical {
  width: 4px;
  cursor: col-resize;
}

.dock-splitter.vertical::before {
  content: '';
  position: absolute;
  top: 12px;
  bottom: 12px;
  left: 1px;
  width: 1px;
  border-radius: 1px;
  background: var(--splitter);
  opacity: 0.6;
}

.dock-splitter:hover::before {
  background: var(--splitter-active);
  opacity: 0.9;
}

.dock-hint {
  position: fixed;
  border: 2px dashed rgba(80, 120, 255, 0.5);
  border-radius: 8px;
  background: var(--hint);
  pointer-events: none;
  opacity: 0;
  transition: opacity 120ms ease;
  z-index: 1500;
}

.dock-hint.active {
  opacity: 1;
}

.dock-insert-hint {
  position: fixed;
  background: var(--accent);
  opacity: 0;
  pointer-events: none;
  z-index: 1600;
}

.dock-ghost {
  position: fixed;
  pointer-events: none;
  opacity: 0.85;
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
  border-radius: 6px;
  padding: 8px;
  z-index: 1600;
}

/* Global tooltip */
#appTooltip {
  position: fixed;
  background: rgba(20, 20, 20, 0.9);
  color: #fff;
  padding: 6px 8px;
  border-radius: 6px;
  font-size: 11px;
  pointer-events: none;
  opacity: 0;
  transition: opacity 120ms ease;
  z-index: 2000;
}

#appTooltip.show {
  opacity: 1;
}

/* Context menu */
.context-menu {
  position: fixed;
  z-index: 1400;
}

/* Object list */
.object-list-toolbar {
  display: flex;
  gap: 6px;
  align-items: center;
  margin-bottom: 6px;
  flex-wrap: wrap;
}

.object-list-table {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.object-list-row {
  display: grid;
  grid-template-columns: 16px 1fr 90px;
  align-items: center;
  gap: 8px;
  padding: 7px 8px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 12px;
  transition: background 100ms ease;
  color: var(--text);
}

.object-list-row.header {
  font-weight: 600;
  cursor: default;
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.object-list-row:hover {
  background: var(--menu-hover);
}

.object-list-row.selected {
  background: var(--accent);
  color: #ffffff;
}

.object-list-row.group {
  font-weight: 600;
  background: var(--menu-hover);
  color: var(--text);
}

.object-list-toggle {
  font-size: 12px;
  cursor: pointer;
  user-select: none;
}
.object-list-indent {
  margin-left: 12px;
}

/* Canvas drawing and selection */
.selection-box {
  position: absolute;
  border: 2px dashed rgba(0, 122, 255, 0.6);
  background: rgba(0, 122, 255, 0.1);
  pointer-events: none;
}

/* Scrollbar styling */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--surface);
}

::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--border);
}

body.dark ::-webkit-scrollbar-track {
  background: var(--surface-strong);
}

body.dark ::-webkit-scrollbar-thumb {
  background: var(--border);
}

body.dark ::-webkit-scrollbar-thumb:hover {
  background: var(--border-strong);
}

/* Utility classes */
.hidden {
  display: none !important;
}

.invisible {
  visibility: hidden;
}

.disabled {
  pointer-events: none;
  opacity: 0.5;
}