/* ==============================================
   Dropdown Menu Component
   ============================================== */

.core-dropdown-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: var(--z-modal);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.core-dropdown-backdrop.visible {
    opacity: 1;
}

.core-dropdown-menu {
    position: fixed;
    min-width: 200px;
    max-width: 280px;
    max-height: 70vh;
    overflow-y: auto;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--space-1) 0;
    opacity: 0;
    transform: scale(0.95) translateY(-4px);
    transform-origin: top right;
    transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.core-dropdown-menu.visible {
    opacity: 1;
    transform: scale(1) translateY(0);
}

/* Divider */
.core-dropdown-divider {
    height: 1px;
    background: var(--color-border);
    margin: var(--space-1) 0;
}

/* Section Label */
.core-dropdown-section-label {
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Menu Item */
.core-dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    width: 100%;
    padding: var(--space-3) var(--space-4);
    background: none;
    border: none;
    color: var(--color-text-primary);
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    text-align: left;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.core-dropdown-item:hover {
    background: var(--color-bg-surface-hover);
}

.core-dropdown-item:focus-visible {
    outline: none;
    background: var(--color-bg-surface-hover);
}

.core-dropdown-item .icon {
    flex-shrink: 0;
    width: 16px;
    height: 16px;
    color: var(--color-text-secondary);
}

.core-dropdown-item-label {
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.core-dropdown-item-meta {
    flex-shrink: 0;
    color: var(--color-text-secondary);
    font-size: var(--font-size-xs);
}

.core-dropdown-item-check {
    flex-shrink: 0;
    width: 16px;
    height: 16px;
    color: var(--color-accent);
    margin-left: auto;
}

/* Selected state */
.core-dropdown-item.selected {
    background: var(--color-accent-bg);
}

.core-dropdown-item.selected:hover {
    background: var(--color-accent-bg-hover);
}

/* Danger state */
.core-dropdown-item.danger {
    color: var(--color-error);
}

.core-dropdown-item.danger .icon {
    color: var(--color-error);
}

.core-dropdown-item.danger:hover {
    background: var(--color-error-bg);
}

/* Touch feedback */
@media (hover: none) and (pointer: coarse) {
    .core-dropdown-item:active {
        background: var(--color-bg-muted);
        transform: scale(0.98);
        transition: transform 0.06s ease-out;
    }
}