.sidebar.sidebar-pro {
  background: linear-gradient(180deg, var(--card) 0%, var(--background) 100%);
  color: var(--foreground);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  width: 320px;
  position: fixed;
  left: 0;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.sidebar.sidebar-pro.collapsed {
  width: 72px;
}

.sidebar.sidebar-pro.collapsed .brand-text,
.sidebar.sidebar-pro.collapsed .sidebar-user,
.sidebar.sidebar-pro.collapsed .sidebar-section-title,
.sidebar.sidebar-pro.collapsed .sidebar-badge,
.sidebar.sidebar-pro.collapsed .nav-item-label,
.sidebar.sidebar-pro.collapsed .sidebar-action-text,
.sidebar.sidebar-pro.collapsed #themeText,
.sidebar.sidebar-pro.collapsed .btn-text,
.sidebar.sidebar-pro.collapsed .favorite-details,
.sidebar.sidebar-pro.collapsed .sidebar-section-header,
.sidebar.sidebar-pro.collapsed .favorites-section,
.sidebar.sidebar-pro.collapsed .quick-tip-container,
.sidebar.sidebar-pro.collapsed .sidebar-calculator,
.sidebar.sidebar-pro.collapsed .sidebar-primary-swatches,
.sidebar.sidebar-pro.collapsed .sidebar-primary-swatches-wrap,
.sidebar.sidebar-pro.collapsed .sidebar-group-label,
.sidebar.sidebar-pro.collapsed .sidebar-group-chevron {
  display: none !important;
}

.sidebar.sidebar-pro.collapsed .sidebar-nav-group {
  align-items: center;
}

.sidebar.sidebar-pro.collapsed .sidebar-group-header {
  justify-content: center;
  padding: 0.45rem;
  width: 44px;
}

.sidebar.sidebar-pro.collapsed .sidebar-inner {
  padding: 1.5rem 0.75rem;
  align-items: center;
}

.sidebar.sidebar-pro.collapsed .sidebar-brand {
  justify-content: center;
}

.sidebar.sidebar-pro.collapsed .nav-item {
  justify-content: center;
  padding: 0.65rem;
  width: 44px;
}

.sidebar.sidebar-pro.collapsed .sidebar-mode-item {
  justify-content: center;
  padding: 0.45rem;
  width: 44px;
}

.sidebar.sidebar-pro.collapsed .sidebar-submenu {
  margin-left: 0;
  padding-left: 0;
  border-left: none;
  align-items: center;
}

.sidebar.sidebar-pro.collapsed .sidebar-group-content {
  max-height: 0 !important;
  overflow: hidden;
}

.collapse-toggle {
  position: absolute;
  top: 1.5rem;
  right: -12px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--primary-foreground);
  border: 1px solid var(--border);
  display: grid;
  place-items: center;
  cursor: pointer;
  z-index: 100;
  transition: transform 0.3s ease;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

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

.sidebar.sidebar-pro .sidebar-inner {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  padding: 1.5rem 1.5rem 2rem;
  height: 100%;
}

.sidebar.sidebar-pro .sidebar-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.sidebar.sidebar-pro .brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-weight: 700;
  letter-spacing: 0.5px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: var(--primary-foreground);
}

.sidebar.sidebar-pro .brand-text {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.sidebar.sidebar-pro .brand-title {
  font-size: 1rem;
  font-weight: 600;
}

.sidebar.sidebar-pro .brand-subtitle {
  font-size: 0.75rem;
  color: var(--muted-foreground);
}

.sidebar.sidebar-pro .sidebar-profile {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem;
  border-radius: 0.75rem;
  background: var(--surface-card-header, var(--accent));
  border: 1px solid var(--border);
}

.sidebar.sidebar-pro .sidebar-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--muted);
  font-weight: 600;
}

.sidebar.sidebar-pro .sidebar-user {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.sidebar.sidebar-pro .sidebar-user-name {
  font-size: 0.9rem;
  font-weight: 600;
}

.sidebar.sidebar-pro .sidebar-user-role {
  font-size: 0.75rem;
  color: var(--muted-foreground);
}

.sidebar.sidebar-pro .sidebar-section {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.sidebar.sidebar-pro .sidebar-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sidebar.sidebar-pro .sidebar-section-title {
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted-foreground);
  font-weight: 600;
}

.sidebar.sidebar-pro .sidebar-badge {
  font-size: 0.7rem;
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  background: var(--muted);
  color: var(--foreground);
}

.sidebar.sidebar-pro .sidebar-menu {
  display: grid;
  gap: 0.4rem;
}

.sidebar.sidebar-pro .calc-tab-trigger-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Cascading navigation groups */
.sidebar.sidebar-pro .sidebar-nav-group {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.sidebar.sidebar-pro .sidebar-group-header {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.5rem 0.65rem;
  border-radius: 0.6rem;
  background: transparent;
  border: none;
  color: var(--foreground);
  font-size: 0.85rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}

.sidebar.sidebar-pro .sidebar-group-header:hover {
  background: var(--muted);
}

.sidebar.sidebar-pro .sidebar-group-header .sidebar-group-icon {
  font-size: 1rem;
}

.sidebar.sidebar-pro .sidebar-group-header .sidebar-group-label {
  flex: 1;
}

.sidebar.sidebar-pro .sidebar-group-header .sidebar-group-chevron {
  font-size: 0.7rem;
  opacity: 0.7;
  transition: transform 0.2s ease;
}

.sidebar.sidebar-pro .sidebar-nav-group.collapsed .sidebar-group-chevron {
  transform: rotate(-90deg);
}

.sidebar.sidebar-pro .sidebar-group-content {
  max-height: 2000px;
  overflow: hidden;
  transition: max-height 0.25s ease-out, opacity 0.2s ease;
}

.sidebar.sidebar-pro .sidebar-nav-group.collapsed .sidebar-group-content {
  max-height: 0 !important;
  opacity: 0;
  pointer-events: none;
}

.sidebar.sidebar-pro .sidebar-submenu {
  display: grid;
  gap: 0.35rem;
  margin-left: 1.5rem;
  padding-left: 0.75rem;
  border-left: 1px solid var(--border);
}

.sidebar.sidebar-pro .sidebar-mode-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.45rem 0.65rem;
  border-radius: 0.6rem;
  background: transparent;
  border: none;
  color: var(--muted-foreground);
  font-size: 0.82rem;
  text-align: left;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}

.sidebar.sidebar-pro .sidebar-mode-item:hover {
  background: var(--muted);
  color: var(--foreground);
}

.sidebar.sidebar-pro .sidebar-mode-item.active {
  background: var(--accent);
  color: var(--accent-foreground);
}

.sidebar.sidebar-pro .nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 0.8rem;
  border-radius: 0.75rem;
  border-left: 3px solid transparent;
  background: transparent;
  color: inherit;
  margin: 0;
  font-size: 0.9rem;
}

.sidebar.sidebar-pro .nav-item:hover {
  background: var(--muted);
}

.sidebar.sidebar-pro .nav-item.active {
  background: var(--primary);
  border-left-color: var(--primary);
  color: var(--primary-foreground);
}

.sidebar.sidebar-pro .nav-item-icon {
  font-size: 1.1rem;
}

.sidebar.sidebar-pro .nav-item-label {
  flex: 1;
  text-align: left;
}

.sidebar.sidebar-pro .sidebar-action {
  justify-content: flex-start;
  gap: 0.5rem;
  background: var(--muted);
  border: 1px solid var(--border);
  color: var(--foreground);
}

.sidebar.sidebar-pro .sidebar-action:hover {
  background: var(--accent);
  color: var(--accent-foreground);
}

.sidebar.sidebar-pro .quick-tip-content {
  background: var(--surface-card-header, var(--card));
  border: 1px solid var(--border);
  padding: 0.75rem;
  border-radius: 0.75rem;
}

.sidebar.sidebar-pro .sidebar-footer {
  margin-top: auto;
}

.sidebar.sidebar-pro .sidebar-footer .pwa-install-sidebar-btn {
  background: var(--muted);
  border: 1px solid var(--border);
  color: var(--foreground);
  margin-bottom: 0.5rem;
  cursor: pointer;
}

.sidebar.sidebar-pro .sidebar-footer .pwa-install-sidebar-btn:hover {
  background: var(--accent);
  color: var(--accent-foreground);
  border-color: var(--accent);
}

.sidebar.sidebar-pro .sidebar-footer a {
  background: var(--muted);
  border: 1px solid var(--border);
  color: var(--foreground);
}

/* ===== Sidebar Calculator (theme-compatible) ===== */
.sidebar.sidebar-pro .sidebar-calculator {
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--foreground);
  padding: 0.75rem;
  border-radius: var(--border-radius, 0.5rem);
}

.sidebar.sidebar-pro .sidebar-calculator .sidebar-section-title {
  margin-bottom: 0.5rem;
  font-size: 0.875rem;
}

.sidebar.sidebar-pro .sidebar-calc-display {
  width: 100%;
  padding: 0.4rem 0.5rem;
  font-size: 1rem;
  border-radius: 0.375rem;
  border: 1px solid var(--border);
  background: var(--input, var(--bg-input, var(--card)));
  color: var(--foreground);
  margin-bottom: 0.5rem;
  text-align: right;
}

.sidebar.sidebar-pro .sidebar-calc-display:focus {
  outline: none;
  box-shadow: 0 0 0 2px var(--ring, var(--primary));
}

.sidebar.sidebar-pro .sidebar-calc-buttons {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.25rem;
}

.sidebar.sidebar-pro .sidebar-calc-btn {
  min-height: 28px;
  padding: 0.25rem;
  font-size: 0.8125rem;
  border: 1px solid var(--border);
  border-radius: 0.375rem;
  background: var(--muted);
  color: var(--foreground);
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}

.sidebar.sidebar-pro .sidebar-calc-btn:hover {
  background: var(--accent);
  color: var(--accent-foreground);
}

.sidebar.sidebar-pro .sidebar-calc-clear {
  grid-row: span 2;
  background: var(--muted);
}

.sidebar.sidebar-pro .sidebar-calc-clear:hover {
  background: var(--destructive, var(--accent));
  color: var(--destructive-foreground, var(--accent-foreground));
}

.sidebar.sidebar-pro .sidebar-calc-operator.sidebar-calc-plus {
  grid-row: span 2;
}

.sidebar.sidebar-pro .sidebar-calc-equals {
  background: var(--primary);
  color: var(--primary-foreground);
}

.sidebar.sidebar-pro .sidebar-calc-equals:hover {
  filter: brightness(1.1);
}

.sidebar.sidebar-pro .sidebar-calc-placeholder {
  display: block;
  min-height: 28px;
}