/* Modern Workspace Layout - Inspired by Figma, Canva, Linear */

body {
  font-family: var(
    --font-family,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    sans-serif
  );
  background: var(--color-bg);
  margin: 0;
  padding: 0;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

/* App Container */
.app-container {
  display: flex;
  flex-direction: column;
  height: 100vh;
  background: var(--color-bg);
}

/* Header - Minimal & Clean */
.header {
  display: flex;
  align-items: center;
  padding: 8px 16px;
  background: white;
  border-bottom: 1px solid var(--color-border);
  gap: 16px;
  height: 56px;
  flex-shrink: 0;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-center {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
  border-left: 1px solid var(--color-border);
  padding-left: 16px;
}

.header-actions-divider {
  width: 1px;
  height: 24px;
  background: var(--color-border);
  margin: 0;
}

.shortcut-help-button {
  flex: 0 0 40px;
  border-radius: 999px;
  width: 40px;
}

.hamburger-menu {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: none;
  background: transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

.hamburger-menu:hover {
  background: var(--color-bg-hover);
  color: var(--color-text);
}

.hamburger-menu svg {
  width: 20px;
  height: 20px;
}

/* Override btn-new-layout margin when in header */
.header-right .btn-new-layout {
  margin: 0;
  width: auto;
  white-space: nowrap;
}

.logo {
  height: 36px;
  width: auto;
}

.brand-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.layout-name-wrapper {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: var(--color-gray-100, #f3f4f6);
  border-radius: 999px;
  transition: background var(--transition-fast);
}

.layout-name-wrapper:hover {
  background: var(--color-gray-200, #e5e7eb);
}

.layout-name {
  font-size: 14px;
  color: var(--color-text-secondary);
  font-weight: 500;
  cursor: pointer;
}

.edit-layout-name {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  padding: 0;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--color-text-tertiary);
  transition: all var(--transition-fast);
}

.edit-layout-name:hover {
  color: var(--color-text);
}

.edit-layout-name svg {
  width: 14px;
  height: 14px;
}

.app-logo {
  height: 36px;
  width: auto;
}

.header h1 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.project-name-container {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
  position: relative;
}

.project-name-container:hover {
  background: rgb(148 163 184 / 12%);
}

.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  background: transparent;
  cursor: pointer;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

.toolbar-group .btn-icon {
  width: 36px;
  height: 36px;
}

.btn-icon svg {
  width: 18px;
  height: 18px;
}

.btn-icon:hover,
.btn-icon[aria-pressed='true'] {
  background: var(--color-bg-hover);
  color: var(--color-text);
}

.mobile-menu-toggle {
  display: none;
}

.project-name {
  font-size: 14px;
  color: var(--color-text-secondary);
  font-weight: 500;
  cursor: pointer;
}

.tooltip {
  position: relative;
}

.tooltip::after {
  content: attr(data-tooltip);
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translate(-50%, -6px);
  background: rgb(255 255 255 / 96%);
  color: var(--color-text);
  font-size: 11px;
  font-weight: 500;
  padding: 4px 10px;
  border-radius: 999px;
  white-space: nowrap;
  box-shadow: 0 10px 24px rgb(15 23 42 / 12%);
  border: 1px solid rgb(148 163 184 / 30%);
  opacity: 0;
  pointer-events: none;
  transition:
    opacity 0.15s ease,
    transform 0.15s ease;
  transition-delay: 0s;
  z-index: 20;
}

.tooltip:hover::after,
.tooltip:focus-visible::after {
  opacity: 1;
  transform: translate(-50%, 0);
  transition-delay: 1s;
}

.btn-rename {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  color: var(--color-text-secondary);
}

.btn-rename svg {
  width: 16px;
  height: 16px;
}

.btn-rename:hover {
  background: var(--color-bg-hover);
  color: var(--color-text);
}

/* Main Content */
.main-content {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* Sidebar - Clean Panel */
.sidebar {
  width: 280px;
  background: var(--color-bg-panel);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  overflow: hidden;
  transition:
    transform var(--transition-fast),
    width var(--transition-fast);
}

.sidebar-tabs {
  display: flex;
  align-items: center;
  gap: 4px;
  min-height: 46px;
  margin: 14px 14px 10px;
  padding: 5px;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  background: var(--color-bg-secondary);
}

.sidebar-tab {
  justify-content: center;
  flex: 1 1 auto;
  min-width: max-content;
  min-height: 34px;
  padding: 0 10px;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-secondary);
  background: transparent;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  white-space: nowrap;
}

.sidebar-tab:hover {
  color: var(--color-text);
  background: rgb(255 255 255 / 55%);
}

.sidebar-tab.active {
  color: var(--color-primary);
  background: var(--color-bg-panel);
  box-shadow: var(--shadow-sm);
}

.app-container.sidebar-collapsed .sidebar {
  width: 0;
  min-width: 0;
  border: none;
  transform: translateX(-100%);
  transition:
    transform var(--transition-fast),
    width var(--transition-fast);
}

.app-container.sidebar-collapsed .sidebar,
.app-container.sidebar-collapsed .sidebar * {
  pointer-events: none;
}

.app-container.sidebar-collapsed .sidebar-backdrop {
  display: none !important;
}

.app-container.sidebar-collapsed .main-content {
  margin-left: 0;
}

/* Canvas Container */
.canvas-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: var(--color-bg);
  position: relative;
  overflow: hidden;
}

.app-container.sidebar-collapsed .canvas-container {
  padding-left: 0;
}

.sidebar-content {
  flex: 1;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--color-border) transparent;
}

.sidebar-content::-webkit-scrollbar {
  width: 8px;
}

.sidebar-content::-webkit-scrollbar-track {
  background: transparent;
}

.sidebar-content::-webkit-scrollbar-thumb {
  background-color: var(--color-border);
  border-radius: 999px;
  border: 2px solid transparent;
}

.sidebar-content::-webkit-scrollbar-thumb:hover {
  background-color: var(--color-border-hover);
}

.tab-content {
  padding: 16px;
}

.tab-content.hidden {
  display: none;
}

/* Toolbar - Minimal & Floating */
.toolbar {
  background: var(--color-bg-panel);
  border-bottom: 1px solid var(--color-border);
  padding: 8px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 48px;
  flex-shrink: 0;
  overflow: visible; /* Allow dropdown to show below */ /* Don't clip horizontally either */
}

.toolbar::-webkit-scrollbar {
  height: 4px;
}

.toolbar::-webkit-scrollbar-thumb {
  background: var(--color-border-hover);
  border-radius: 2px;
}

.toolbar-section {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 4px;
  flex-shrink: 0;
}

.toolbar-section:first-child {
  padding-left: 0;
}

.toolbar-divider {
  width: 1px;
  height: 32px;
  background: var(--color-border);
  opacity: 0.8;
  flex-shrink: 0;
  display: inline-block;
}

/* Canvas Wrapper */
.canvas-wrapper {
  flex: 1;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #fff;
  background-image: none;
}

/* Empty State */
.empty-state {
  color: var(--color-text-tertiary);
  font-size: 13px;
  text-align: center;
  padding: 48px 24px;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--color-border-hover);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-tertiary);
}

/* Responsive */
@media (width <= 768px) {
  .sidebar {
    width: 250px;
  }
}

#app-loading {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f9fafb;
  color: #111827;
  font-size: 16px;
  letter-spacing: 0.02em;
  z-index: 9999;
}