.sidebar {
  width: var(--sidebar-width);
  background: var(--sidebar-bg);
  color: #fff;
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  z-index: 40;
  transition: width var(--transition-normal), transform var(--transition-normal);
  overflow: visible;
}

.sidebar__logo {
  padding: var(--space-6);
  border-bottom: 1px solid var(--color-gray-700);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.sidebar__logo-text {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.sidebar__logo img {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
}

.sidebar__logo span {
  font-size: var(--text-lg);
  font-weight: 700;
  color: #fff;
  white-space: nowrap;
}

.sidebar__toggle {
  display: none;
  position: absolute;
  top: var(--space-4);
  right: var(--space-3);
  background: none;
  border: none;
  color: var(--color-gray-400);
  cursor: pointer;
  padding: var(--space-2);
  border-radius: var(--radius-md);
  font-size: var(--text-lg);
}

.sidebar__toggle:hover {
  color: #fff;
  background: var(--color-gray-700);
}

.sidebar__nav {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.12) transparent;
}

.sidebar__nav::-webkit-scrollbar {
  width: 5px;
}

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

.sidebar__nav::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-full);
}

.sidebar__nav::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.25);
}

.sidebar__link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  color: var(--sidebar-text);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 500;
  white-space: nowrap;
}

.sidebar__link:hover {
  background: var(--color-gray-700);
  color: var(--sidebar-text-hover);
  text-decoration: none;
}

.sidebar__link--active {
  background: var(--sidebar-active-bg);
  color: #fff;
}

.sidebar__link--active:hover {
  background: var(--color-primary-700);
  color: #fff;
}

.sidebar__link .sidebar__icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sidebar__link .sidebar__label {
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar__divider {
  height: 1px;
  background: var(--color-gray-700);
  margin: var(--space-2) var(--space-3);
}

.sidebar__footer {
  padding: var(--space-4);
  border-top: 1px solid var(--color-gray-700);
  flex-shrink: 0;
}

.sidebar__user {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  margin-bottom: var(--space-3);
}

.sidebar__user-email {
  font-size: var(--text-sm);
  font-weight: 600;
  color: #fff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar__user-role {
  font-size: var(--text-xs);
  color: var(--color-gray-400);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar__logout-form {
  width: 100%;
}

.sidebar__logout {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  width: 100%;
  padding: var(--space-2) var(--space-3);
  background: none;
  border: 1px solid var(--color-gray-700);
  border-radius: var(--radius-md);
  color: var(--color-danger-500);
  font-size: var(--text-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: left;
}

.sidebar__logout:hover {
  background: rgba(239, 68, 68, 0.1);
  border-color: var(--color-danger-500);
}

.sidebar__logout-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sidebar__logout-icon svg {
  width: 20px;
  height: 20px;
}

.sidebar__logout-label {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.main-content {
  margin-left: var(--sidebar-width);
  flex: 1;
  min-width: 0; /* Prevents wide flex children from expanding the viewport */
  min-height: 100vh;
  transition: margin-left var(--transition-normal);
  padding: var(--space-8);
  max-width: 100%;
}

.main-content__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-8);
}

.main-content__title {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 0;
}

.main-content__actions {
  display: flex;
  gap: var(--space-2);
}

@media (max-width: 1024px) {
  .sidebar {
    width: var(--sidebar-width);
    transform: translateX(-100%);
  }
  .sidebar--open {
    transform: translateX(0);
  }
  .sidebar__toggle {
    display: block !important;
  }
  .sidebar__logo span,
  .sidebar__link .sidebar__label,
  .sidebar__user-email,
  .sidebar__user-role {
    display: inline;
  }
  .sidebar__link {
    justify-content: flex-start;
  }
  .main-content {
    margin-left: 0;
    padding: var(--space-4);
    padding-top: calc(var(--space-4) + 48px);
  }

  .sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 30;
  }
  .sidebar-overlay--visible {
    display: block;
  }
}

/* Modal table responsive */
@media (max-width: 640px) {
  #stock-details-modal .modal__content {
    padding: var(--space-3) !important;
    max-height: 95vh !important;
  }

  #stock-details-modal .table-container {
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch;
  }

  #stock-details-modal table {
    min-width: 480px;
  }

  /* Info cards: stack to single column */
  #stock-modal-batch-expiry-highlight > div {
    grid-template-columns: 1fr !important;
  }

  /* KPI widgets: allow wrap */
  #stock-modal-summary-widgets {
    grid-template-columns: 1fr 1fr !important;
  }
}

/* Theme Toggle Segmented Control */
.theme-switch {
  display: flex;
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-lg);
  padding: 3px;
  gap: 2px;
  margin-bottom: var(--space-4);
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: all var(--transition-fast);
}

.theme-switch__btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 8px var(--space-3);
  background: transparent;
  border: none;
  border-radius: var(--radius-md);
  color: var(--color-gray-400);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: var(--text-xs);
  font-weight: 600;
}

.theme-switch__btn svg {
  width: 16px;
  height: 16px;
  stroke-width: 2.25;
}

.theme-switch__btn:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.08);
}

.theme-switch__btn--active {
  background: var(--color-primary-600) !important;
  color: #ffffff !important;
  box-shadow: var(--shadow-sm);
}

.theme-switch__btn--active:hover {
  background: var(--color-primary-700) !important;
}



/* Desktop Sidebar Collapse & Expand Buttons */
.sidebar__desktop-collapse {
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  color: var(--color-gray-400);
  cursor: pointer;
  padding: var(--space-1.5);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.sidebar__desktop-collapse:hover {
  color: #fff;
  background: var(--color-gray-700);
}

.sidebar__desktop-collapse svg {
  width: 18px;
  height: 18px;
}

.main-content__desktop-expand {
  display: none;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: var(--color-bg);
  border: 1px solid var(--color-gray-300);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
  margin-bottom: var(--space-4);
}

.main-content__desktop-expand:hover {
  background: var(--color-gray-100);
  color: var(--color-text);
  border-color: var(--color-gray-400);
}

html[data-theme="dark"] .main-content__desktop-expand {
  background: var(--color-gray-800);
  border-color: var(--color-gray-700);
  color: var(--color-gray-400);
}

html[data-theme="dark"] .main-content__desktop-expand:hover {
  background: var(--color-gray-700);
  color: #fff;
  border-color: var(--color-gray-500);
}

.main-content__desktop-expand svg {
  width: 20px;
  height: 20px;
}

@media (max-width: 1024px) {
  .sidebar__desktop-collapse,
  .main-content__desktop-expand {
    display: none !important;
  }
}

/* Collapsed Sidebar Styles (Manual - Gated for Desktop only) */
@media (min-width: 1025px) {
  html.sidebar-collapsed .sidebar,
  .sidebar--collapsed {
    width: 64px;
  }

  html.sidebar-collapsed .sidebar__desktop-collapse,
  .sidebar--collapsed .sidebar__desktop-collapse {
    display: none !important;
  }

  html.sidebar-collapsed .sidebar__logo span,
  .sidebar--collapsed .sidebar__logo span,
  html.sidebar-collapsed .sidebar__link .sidebar__label,
  .sidebar--collapsed .sidebar__link .sidebar__label,
  html.sidebar-collapsed .sidebar__user,
  .sidebar--collapsed .sidebar__user,
  html.sidebar-collapsed .sidebar__logout-label,
  .sidebar--collapsed .sidebar__logout-label,
  html.sidebar-collapsed .theme-switch__btn .theme-switch__label,
  .sidebar--collapsed .theme-switch__btn .theme-switch__label {
    display: none !important;
  }

  html.sidebar-collapsed .sidebar__logo,
  .sidebar--collapsed .sidebar__logo {
    justify-content: center;
    padding: var(--space-4);
  }

  html.sidebar-collapsed .sidebar__link,
  .sidebar--collapsed .sidebar__link {
    justify-content: center;
    padding: var(--space-3);
  }

  html.sidebar-collapsed .sidebar__footer,
  .sidebar--collapsed .sidebar__footer {
    padding: var(--space-3);
  }

  html.sidebar-collapsed .theme-switch,
  .sidebar--collapsed .theme-switch {
    flex-direction: column;
    padding: var(--space-1);
    margin-bottom: var(--space-3);
  }

  html.sidebar-collapsed .theme-switch__btn,
  .sidebar--collapsed .theme-switch__btn {
    padding: var(--space-2);
  }

  html.sidebar-collapsed .sidebar__logout,
  .sidebar--collapsed .sidebar__logout {
    justify-content: center;
    padding: var(--space-3);
  }

  html.sidebar-collapsed .main-content,
  .main-content--collapsed {
    margin-left: 64px;
  }
  
  /* Collapsed subnav support (Hover Popover/Flyout) */
  html.sidebar-collapsed .sidebar__subnav,
  .sidebar--collapsed .sidebar__subnav {
    display: none !important;
  }

  html.sidebar-collapsed .sidebar__nav {
    overflow: visible !important;
  }

  html.sidebar-collapsed .sidebar__group {
    position: relative;
  }

  html.sidebar-collapsed .sidebar__group:hover .sidebar__subnav {
    display: flex !important;
    position: absolute;
    left: 58px;
    top: 0;
    width: 200px;
    background: var(--sidebar-bg, #111827);
    border: 1px solid var(--color-gray-700, #374151);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    padding: var(--space-2) var(--space-3);
    box-shadow: 6px 4px 18px rgba(0, 0, 0, 0.4);
    z-index: 9999;
    flex-direction: column;
    gap: 4px;
  }

  /* Invisible hover bridge to prevent menu from disappearing during mouse movement */
  html.sidebar-collapsed .sidebar__group:hover .sidebar__subnav::before {
    content: '';
    position: absolute;
    left: -20px;
    top: 0;
    bottom: 0;
    width: 20px;
    background: transparent;
    z-index: -1;
  }

  html.sidebar-collapsed .sidebar__subnav-chevron {
    display: none !important;
  }

  html.sidebar-collapsed .sidebar__link--has-subnav,
  .sidebar--collapsed .sidebar__link--has-subnav {
    border-radius: var(--radius-md) !important;
    border-left: none !important;
  }

  /* Show expand button when sidebar is collapsed */
  html.sidebar-collapsed .main-content__desktop-expand {
    display: flex;
  }
}

/* Premium Sidebar Group & Subnav accordion styles */
.sidebar__group {
  display: flex;
  flex-direction: column;
  width: 100%;
}

.sidebar__link--has-subnav {
  cursor: pointer;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sidebar__link--active-parent {
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
  border-left: 3px solid var(--color-primary-500);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.sidebar__subnav {
  display: none;
  flex-direction: column;
  gap: 2px;
  background: rgba(0, 0, 0, 0.2);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  padding: var(--space-1) var(--space-2) var(--space-2) var(--space-4);
  margin-top: -1px;
}

.sidebar__group--expanded .sidebar__subnav {
  display: flex;
}

.sidebar__subnav-chevron {
  transition: transform var(--transition-fast) ease;
}

.sidebar__group--expanded .sidebar__subnav-chevron {
  transform: rotate(180deg);
}

.sidebar__subnav-link {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 8px var(--space-3);
  color: var(--sidebar-text);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  opacity: 0.8;
}

.sidebar__subnav-link:hover {
  background: var(--color-gray-700);
  color: var(--sidebar-text-hover);
  opacity: 1;
}

.sidebar__subnav-link--active {
  background: var(--sidebar-active-bg);
  color: #fff !important;
  opacity: 1;
}

.sidebar__subnav-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-gray-500);
  transition: all var(--transition-fast);
}

.sidebar__subnav-link--active .sidebar__subnav-dot {
  background: #fff;
  box-shadow: 0 0 4px rgba(255, 255, 255, 0.8);
}