/* Dropdown Component Styles
   WCAG AAA compliant: focus visible, touch targets, contrast
   Uses CSS custom properties for scalability
*/

.dropdown {
  position: relative;
  display: inline-block;
}

.dropdown-trigger {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

/* Chevron indicator */
.dropdown-trigger::after {
  content: '';
  border: 0.25rem solid transparent;
  border-top-color: currentColor;
  border-bottom: none;
  margin-left: var(--space-1);
  transition: transform var(--motion-fast) var(--ease-out);
}

.dropdown-trigger[aria-expanded="true"]::after {
  transform: rotate(180deg);
}

/* Menu container */
.dropdown-menu {
  position: absolute;
  top: calc(100% + var(--space-1));
  right: 0;
  min-width: 12rem;
  background: var(--ui-00);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-2);
  box-shadow: var(--elev-2);
  padding: var(--space-1) 0;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-0.5rem);
  transition: 
    opacity var(--motion-fast) var(--ease-out),
    transform var(--motion-fast) var(--ease-out),
    visibility 0s var(--motion-fast);
}

.dropdown-menu.is-open {
  display: block;
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  transition: 
    opacity var(--motion-fast) var(--ease-out),
    transform var(--motion-fast) var(--ease-out),
    visibility 0s 0s;
}

/* Ensure all dropdown menu content is left-aligned */
.dropdown-menu {
  text-align: left;
}

/* Dropdown menu items - override browser button defaults */
.dropdown-menu button,
.dropdown-menu .dropdown-item,
.dropdown-item {
  display: block !important;
  width: 100%;
  min-height: var(--touch-target-min);
  padding: var(--space-2) var(--space-3);
  background: transparent;
  border: none;
  text-align: left !important;
  cursor: pointer;
  color: var(--text-01);
  font-size: var(--type-body);
}

.dropdown-item:hover {
  background: var(--hover-ui);
}

.dropdown-item:focus-visible {
  outline: none;
  background: var(--hover-ui);
  box-shadow: inset 0 0 0 2px var(--focus-outer);
}

.dropdown-item-description {
  font-size: var(--type-caption);
  color: var(--text-03);
}

/* Menu items - WCAG AAA 44px touch targets */
.dropdown-menu [role="menuitem"] {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: var(--space-2);
  width: 100%;
  min-height: var(--touch-target-min);
  padding: var(--space-2) var(--space-3);
  background: transparent;
  border: none;
  font-size: var(--text-sm);
  color: var(--text-01);
  text-align: left;
  cursor: pointer;
  transition: background var(--motion-fast) var(--ease-out);
}

.dropdown-menu [role="menuitem"]:hover {
  background: var(--hover-ui);
}

.dropdown-menu [role="menuitem"]:focus-visible {
  outline: none;
  background: var(--hover-ui);
  box-shadow: inset 0 0 0 2px var(--focus-outer);
}

.dropdown-menu [role="menuitem"]:disabled {
  color: var(--disabled-03);
  cursor: not-allowed;
}

/* Divider between menu sections */
.dropdown-divider {
  height: 1px;
  background: var(--border-passive);
  margin: var(--space-1) 0;
}

/* Icon within menu item */
.dropdown-menu [role="menuitem"] .icon {
  flex-shrink: 0;
  width: 1rem;
  height: 1rem;
  color: var(--icon-02);
}

/* Description text for menu items */
.dropdown-menu [role="menuitem"] .description {
  font-size: var(--text-xs);
  color: var(--text-03);
  margin-top: 0.125rem;
}

/* Menu item with stacked label + description */
.dropdown-menu [role="menuitem"].has-description {
  flex-direction: column;
  align-items: flex-start;
}

/* File dropdown — wider to accommodate shortcuts and examples */
.dropdown-menu-file{
  min-width:14rem;
}

/* Separator line between menu sections */
.dropdown-separator{
  height:1px;
  background:var(--border-passive);
  margin:var(--space-1) 0;
}

/* Submenu group label (non-interactive) */
.dropdown-submenu-label{
  padding:var(--space-2) var(--space-3) var(--space-1);
  font-size:var(--type-caption);
  font-weight:600;
  color:var(--text-03);
  text-transform:uppercase;
  letter-spacing:0.04em;
}

/* Example items — slightly indented under group label */
.dropdown-item-example{
  padding-left:var(--space-4) !important;
  font-size:var(--type-caption) !important;
}

/* Danger item — red text, red hover */
.dropdown-item-danger{
  color:var(--support-error) !important;
}
.dropdown-item-danger:hover{
  background:var(--support-error-bg) !important;
}

/* Keyboard shortcut hint inside menu item */
.dropdown-item-label{
  flex:1;
}

.dropdown-item kbd{
  margin-left:auto;
  font-size:0.6875rem;
  opacity:0.7;
}

/* Passive hint caption inside dropdown */
.dropdown-hint{
  display:block;
  padding:var(--space-1) var(--space-3) var(--space-2);
  font-size:var(--type-caption);
  color:var(--text-03);
  font-style:italic;
  pointer-events:none;
}

/* Reduced motion: instant show/hide */
@media (prefers-reduced-motion: reduce) {
  .dropdown-menu {
    transition: opacity var(--motion-fast) var(--ease-out), visibility 0s;
    transform: none;
  }
  
  .dropdown-menu.is-open {
    transform: none;
  }
  
  .dropdown-trigger::after {
    transition: none;
  }
}