.sidebar {
  width: var(--sidebar-width)!important;
  position: fixed!important;
  left: 0!important;
  top: var(--topnav-height)!important;
  height: calc(100vh - var(--topnav-height))!important;
  z-index: 1000!important;
  overflow-y: auto!important;
  overflow-x: hidden!important;
  background: var(--bg-white)!important;
  border-right: 1px solid #e5e7eb!important;
  padding-top: 0!important;
  margin-top: 0!important;
  padding-bottom: 2rem!important;
  display: flex!important;
  flex-direction: column!important;
  scrollbar-width: thin;
  scrollbar-color: #2563eb rgba(37,99,235,.08)
}
.sidebar::-webkit-scrollbar {
  width: 6px
}
.sidebar::-webkit-scrollbar-track {
  background: rgba(37,99,235,.08)
}
.sidebar::-webkit-scrollbar-thumb {
  background: #2563eb;
  border-radius: 3px
}
.sidebar::-webkit-scrollbar-thumb:hover {
  background: #1d4ed8
}
.sidebar-header {
  background: 0 0!important;
  padding: var(--space-lg) var(--space-lg)!important;
  border-bottom: none!important;
  margin-top: 0!important;
  border-top: none!important
}
.sidebar-logo {
  display: flex!important;
  align-items: center!important;
  gap: var(--space-md)!important;
  color: var(--text-dark)!important;
  text-decoration: none!important;
  font-size: var(--font-size-xl)!important;
  font-weight: 700!important;
  letter-spacing: -.025em!important
}
.sidebar-logo i {
  font-size: 2rem!important;
  color: var(--accent-primary)!important;
  filter: drop-shadow(0 0 8px rgba(13, 110, 253, .3))!important
}
.nav-section {
  margin-bottom: var(--space-xl)
}
.nav-section-header {
  display: flex!important;
  align-items: center!important;
  gap: var(--space-md)!important;
  padding: var(--space-md) var(--space-lg)!important;
  color: #111827!important;
  font-weight: 600!important;
  cursor: pointer!important;
  transition: all var(--transition-smooth)!important;
  background: #f3f4f6!important;
  border-bottom: 1px solid #e5e7eb!important
}
.nav-section-header:hover {
  background: #dbeafe!important;
  color: #1e40af!important
}
.nav-section-header .nav-icon {
  color: #1f2937!important;
  opacity: 1!important
}
.nav-section-header:hover .nav-icon {
  color: #1e40af!important
}
.nav-menu {
  padding: var(--space-lg) 0;
  padding-bottom: 4rem;
  flex: 1 1 auto;
  overflow: visible
}
.nav-item {
  margin: 0 var(--space-md) var(--space-sm) var(--space-md)
}
.nav-subsection-header {
  display: flex!important;
  align-items: center!important;
  gap: var(--space-md)!important;
  padding: var(--space-sm) var(--space-lg)!important;
  color: #1f2937!important;
  font-weight: 500!important;
  font-size: var(--font-size-sm)!important;
  margin-top: var(--space-md)!important;
  margin-bottom: var(--space-xs)!important;
  cursor: pointer!important;
  user-select: none!important;
  transition: all var(--transition-smooth)!important
}
.nav-subsection-header:hover {
  color: var(--accent-primary)!important;
  background: rgba(13,110,253,.05)!important;
  border-radius: var(--radius-lg)!important
}
.nav-subsection-header .nav-icon {
  font-size: .875rem!important;
  opacity: 1!important;
  color: #374151!important
}
.nav-subsection-header .nav-toggle {
  margin-left: auto!important;
  transition: transform var(--transition-smooth)!important;
  color: #4b5563!important;
  font-size: .75rem!important
}
.nav-subsection-header .nav-toggle.rotated {
  transform: rotate(90deg)!important
}
.nav-sub-sub-link {
  padding-left: calc(var(--space-lg) + var(--space-xl))!important
}
.nav-link {
  display: flex!important;
  align-items: center!important;
  gap: var(--space-md)!important;
  padding: var(--space-md) var(--space-lg)!important;
  color: #1f2937!important;
  text-decoration: none!important;
  border-radius: var(--radius-lg)!important;
  transition: all var(--transition-smooth)!important;
  font-weight: 500!important;
  font-size: var(--font-size-sm)!important;
  position: relative;
  overflow: hidden
}
.nav-link .nav-icon {
  color: #374151!important;
  opacity: 1!important
}
.nav-link:hover {
  color: var(--accent-primary)!important;
  background: rgba(13,110,253,.08)!important;
  transform: translateX(4px);
  box-shadow: var(--shadow-md)
}
.nav-link.active {
  color: var(--accent-primary)!important;
  background: rgba(13,110,253,.12)!important;
  box-shadow: var(--shadow-lg);
  font-weight: 600!important;
  border-left: 4px solid var(--accent-primary)!important;
  padding-left: calc(var(--space-lg) - 4px)!important
}
.nav-icon {
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem
}
.btn {
  font-weight: 600;
  border-radius: var(--radius-lg);
  transition: all var(--transition-smooth);
  position: relative;
  overflow: hidden;
  letter-spacing: .025em;
  font-family: var(--font-family);
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none
}
.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg,transparent,rgba(255,255,255,.2),transparent);
  transition: left var(--transition-smooth)
}
.btn:hover::before {
  left: 100%
}
.btn-primary {
  background: var(--accent-primary);
  border: none;
  color: var(--text-white)
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
  filter: brightness(1.05);
  color: var(--text-white)
}
.btn-outline-primary {
  border: 2px solid var(--accent-primary);
  color: var(--accent-primary);
  background: 0 0
}
.btn-outline-primary:hover {
  background: var(--accent-primary);
  color: var(--text-white);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md)
}
.btn-sm {
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-size-sm)
}
.btn-lg {
  padding: var(--space-md) var(--space-xl);
  font-size: var(--font-size-lg)
}
.auth-buttons {
  display: flex;
  gap: var(--space-sm);
  align-items: center
}
@media (max-width:768px) {
  .auth-buttons {
    flex-direction: column;
    gap: var(--space-xs)
  }
}

/* ====================================
   TOP NAV BAR
   ==================================== */
.top-nav-bar {
  background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
  border-bottom: 2px solid #1e40af;
  position: sticky;
  top: 0;
  z-index: 1100;
  box-shadow: var(--shadow-md);
  height: var(--topnav-height);
  display: flex;
  align-items: center
}
.top-nav-bar-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: 0 var(--space-xl)
}
.top-nav-bar-left {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  min-width: 0
}
.top-nav-bar-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0
}
.top-nav-bar-logo-img {
  height: 36px;
  width: auto;
  filter: brightness(0) invert(1)
}
.top-nav-bar-beta {
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.8);
  font-weight: 600;
  background: rgba(255, 255, 255, 0.15);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  flex-shrink: 0
}
.top-nav-bar-separator {
  width: 1px;
  height: 24px;
  background: rgba(255, 255, 255, 0.3);
  flex-shrink: 0
}
.top-nav-bar-right {
  display: flex;
  align-items: center;
  flex-shrink: 0
}
.top-nav-bar-user {
  display: flex;
  align-items: center;
  gap: var(--space-md)
}
.top-nav-bar-username {
  color: white;
  font-weight: 500;
  font-size: var(--font-size-sm);
  white-space: nowrap
}
.top-nav-bar-icon-btn {
  background: none;
  border: 2px solid rgba(255, 255, 255, 0.6);
  color: white;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font-size: 0.9rem;
  transition: all var(--transition-smooth)
}
.top-nav-bar-icon-btn:hover {
  background: white;
  color: #2563eb;
  border-color: white;
  transform: rotate(90deg)
}
.top-nav-bar-logout-btn {
  background: none;
  border: 2px solid rgba(255, 255, 255, 0.6);
  color: white;
  padding: 6px 14px;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: var(--font-size-sm);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  transition: all var(--transition-smooth)
}
.top-nav-bar-logout-btn:hover {
  background: white;
  color: #2563eb;
  border-color: white;
  transform: translateY(-1px)
}
.top-nav-bar-auth {
  display: flex;
  gap: var(--space-sm)
}
.top-nav-bar-login-btn {
  text-decoration: none;
  color: white;
  font-weight: 500;
  padding: 6px 14px;
  border: 2px solid white;
  border-radius: var(--radius-md);
  transition: all var(--transition-smooth);
  font-size: var(--font-size-sm)
}
.top-nav-bar-login-btn:hover {
  background: white;
  color: #2563eb;
  text-decoration: none;
  transform: translateY(-1px)
}

@media (max-width: 768px) {
  .top-nav-bar-username,
  .top-nav-bar-logout-text {
    display: none
  }
  .top-nav-bar-content {
    padding: 0 var(--space-md)
  }
}

/* ====================================
   PROJECT SELECTOR
   ==================================== */
.project-selector {
  position: relative
}
.project-selector-trigger {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: white;
  padding: 6px 12px;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: var(--font-size-sm);
  font-weight: 500;
  transition: all var(--transition-smooth);
  max-width: 280px;
  min-width: 160px
}
.project-selector-trigger:hover {
  background: rgba(255, 255, 255, 0.25);
  border-color: rgba(255, 255, 255, 0.5)
}
.project-selector.open .project-selector-trigger {
  background: rgba(255, 255, 255, 0.3);
  border-color: white
}
.project-selector-icon {
  font-size: 0.85rem;
  flex-shrink: 0
}
.project-selector-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
  text-align: left
}
.project-selector-placeholder {
  opacity: 0.7
}
.project-selector-chevron {
  font-size: 0.7rem;
  flex-shrink: 0;
  transition: transform var(--transition-smooth)
}
.project-selector.open .project-selector-chevron {
  transform: rotate(180deg)
}
.project-selector-overlay {
  position: fixed;
  inset: 0;
  z-index: 1200
}
.project-selector-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  width: 360px;
  max-height: 480px;
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--border-color);
  z-index: 1300;
  display: flex;
  flex-direction: column;
  overflow: hidden
}
.project-selector-search {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  border-bottom: 1px solid var(--border-color)
}
.project-selector-search i {
  color: var(--text-muted);
  font-size: 0.85rem
}
.project-selector-search input {
  border: none;
  outline: none;
  flex: 1;
  font-size: var(--font-size-sm);
  color: var(--text-dark);
  background: transparent;
  font-family: var(--font-family)
}
.project-selector-search input::placeholder {
  color: var(--text-muted)
}
.project-selector-list {
  overflow-y: auto;
  max-height: 380px;
  padding: var(--space-xs) 0
}
.project-selector-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-sm) var(--space-md);
  width: 100%;
  border: none;
  background: none;
  cursor: pointer;
  text-align: left;
  font-family: var(--font-family);
  transition: background var(--transition-fast)
}
.project-selector-item:hover {
  background: var(--bg-hover)
}
.project-selector-item.selected {
  background: rgba(13, 110, 253, 0.08)
}
.project-selector-item.project-selector-clear {
  color: var(--text-muted);
  font-size: var(--font-size-sm);
  border-bottom: 1px solid var(--border-color);
  padding: var(--space-md)
}
.project-selector-item.project-selector-clear:hover {
  color: var(--danger)
}
.project-selector-item-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1;
  min-width: 0
}
.project-selector-item-name {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--text-dark);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap
}
.project-selector-item-client {
  font-size: var(--font-size-xs);
  color: var(--text-muted)
}
.project-selector-item-number {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
  background: var(--bg-secondary);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  flex-shrink: 0
}
.project-selector-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-xl);
  color: var(--text-muted);
  font-size: var(--font-size-sm)
}

/* Organization group in project selector */
.project-selector-org-group {
  border-bottom: 1px solid var(--border-light)
}
.project-selector-org-group:last-child {
  border-bottom: none
}
.project-selector-org-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-secondary);
  border: none;
  cursor: pointer;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--text-dark);
  transition: background-color 0.15s ease
}
.project-selector-org-header:hover {
  background: var(--bg-hover, #e9ecef)
}
.project-selector-org-chevron {
  font-size: 0.65rem;
  color: var(--text-muted);
  width: 12px;
  text-align: center;
  flex-shrink: 0;
  transition: transform 0.15s ease
}
.project-selector-org-icon {
  color: var(--accent-primary);
  font-size: 0.85rem;
  flex-shrink: 0
}
.project-selector-org-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  text-align: left
}
.project-selector-org-count {
  font-size: var(--font-size-xs);
  font-weight: 500;
  color: var(--text-muted);
  background: var(--bg-primary, #fff);
  padding: 1px 7px;
  border-radius: 10px;
  flex-shrink: 0
}
.project-selector-org-group .project-selector-item {
  padding-left: calc(var(--space-md) + 20px)
}

/* Section header (Recent, search group labels) */
.project-selector-section-header {
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: var(--space-sm) var(--space-md);
  padding-top: var(--space-md)
}
/* Divider between sections */
.project-selector-divider {
  height: 1px;
  background: var(--border-color);
  margin: var(--space-xs) var(--space-md)
}
/* Loading spinner inside expanded org group */
.project-selector-org-loading {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) calc(var(--space-md) + 20px);
  color: var(--text-muted);
  font-size: var(--font-size-sm)
}

/* Module badges (AEConcept / AEConnect indicators) */
.project-selector-item-modules {
  display: flex;
  gap: 4px;
  margin-top: 2px
}
.project-selector-module-badge {
  font-size: 0.65rem;
  font-weight: 600;
  padding: 1px 6px;
  border-radius: var(--radius-sm);
  letter-spacing: 0.02em;
  white-space: nowrap
}
.project-selector-module-badge.concept {
  background: rgba(13, 110, 253, 0.1);
  color: #2563eb
}
.project-selector-module-badge.connect {
  background: rgba(16, 185, 129, 0.1);
  color: #059669
}

/* Footer with "All Projects" + "New Project" links */
.project-selector-footer {
  display: flex;
  border-top: 1px solid var(--border-color);
  background: var(--bg-secondary)
}
.project-selector-footer-link {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-size-xs);
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all var(--transition-fast)
}
.project-selector-footer-link:hover {
  color: var(--accent-primary);
  background: rgba(13, 110, 253, 0.06);
  text-decoration: none
}
.project-selector-footer-link + .project-selector-footer-link {
  border-left: 1px solid var(--border-color)
}
.project-selector-footer-link i {
  font-size: 0.75rem
}

/* ====================================
   APP SIDEBAR ADDITIONS
   ==================================== */
.nav-section-header.nav-back-link {
  background: transparent !important;
  color: var(--accent-primary) !important;
  font-weight: 500 !important;
  border-bottom: none !important
}
.nav-section-header.nav-back-link:hover {
  background: rgba(13, 110, 253, 0.05) !important
}
.nav-section-header.nav-back-link .nav-icon {
  color: var(--accent-primary) !important
}
.nav-project-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: rgba(13, 110, 253, 0.06);
  border-bottom: 2px solid var(--accent-primary);
  margin-bottom: var(--space-md)
}
.nav-project-header .nav-icon {
  color: var(--accent-primary);
  font-size: 1.1rem
}
.nav-project-name {
  font-weight: 600;
  font-size: var(--font-size-sm);
  color: var(--text-dark);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap
}
.nav-trial-badge {
  font-size: var(--font-size-xs);
  background: var(--accent-orange);
  color: white;
  padding: 1px 6px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  margin-left: auto;
  flex-shrink: 0
}
.nav-section-header .nav-toggle {
  margin-left: auto !important;
  transition: transform var(--transition-smooth) !important;
  color: #4b5563 !important;
  font-size: 0.75rem !important
}
.nav-section-header .nav-toggle.rotated {
  transform: rotate(90deg) !important
}

/* Expand/Collapse animations */
.nav-subsection {
  overflow: hidden;
  transition: max-height var(--transition-smooth), opacity var(--transition-smooth)
}
.nav-subsection.expanded {
  max-height: 2000px;
  opacity: 1
}
.nav-subsection.collapsed {
  max-height: 0;
  opacity: 0
}