/**
 * ============================================================================
 *    AUTOCOMPLETE COMPONENT
 * ============================================================================
 * Componente de autocompletado con tokens CSS centralizados.
 * Permite buscar y seleccionar de una lista o agregar nuevos valores.
 * 
 * Tokens requeridos: design-tokens.css
 * ============================================================================
 */

/* -----------------------------------------------------------------------------
   Wrapper
   ----------------------------------------------------------------------------- */
.autocomplete-wrapper {
    position: relative;
    width: var(--autocomplete-width);
}

/* -----------------------------------------------------------------------------
   Input
   ----------------------------------------------------------------------------- */
.autocomplete-input {
    width: 100%;
    padding: var(--autocomplete-padding-y) var(--autocomplete-padding-right-icon) var(--autocomplete-padding-y) var(--autocomplete-padding-x);
    border: var(--border-width) solid var(--autocomplete-border);
    border-radius: var(--autocomplete-radius);
    font-size: var(--autocomplete-font-size);
    transition: all var(--autocomplete-transition);
    background-color: white;
}

.autocomplete-input:focus {
    outline: none;
    border-color: var(--autocomplete-focus-border);
    box-shadow: var(--autocomplete-focus-ring);
}

.autocomplete-input::placeholder {
    color: var(--autocomplete-placeholder-color);
}

/* -----------------------------------------------------------------------------
   Clear button
   ----------------------------------------------------------------------------- */
.autocomplete-clear {
    position: absolute;
    right: var(--autocomplete-clear-right);
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--autocomplete-clear-color);
    cursor: pointer;
    padding: var(--autocomplete-clear-padding);
    display: none;
    font-size: var(--autocomplete-clear-size);
    line-height: 1;
    transition: color var(--autocomplete-transition);
}

.autocomplete-clear:hover {
    color: var(--autocomplete-clear-hover-color);
}

.autocomplete-wrapper.has-value .autocomplete-clear {
    display: block;
}

/* -----------------------------------------------------------------------------
   Dropdown
   ----------------------------------------------------------------------------- */
.autocomplete-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin-top: var(--autocomplete-dropdown-margin-top);
    background-color: var(--autocomplete-dropdown-bg);
    border: var(--border-width) solid var(--autocomplete-dropdown-border);
    border-radius: var(--autocomplete-dropdown-radius);
    box-shadow: var(--autocomplete-dropdown-shadow);
    max-height: var(--autocomplete-dropdown-max-height);
    overflow-y: auto;
    z-index: var(--autocomplete-dropdown-z-index);
    display: none;
}

.autocomplete-dropdown.is-open {
    display: block;
}

/* -----------------------------------------------------------------------------
   Items
   ----------------------------------------------------------------------------- */
.autocomplete-item {
    padding: var(--autocomplete-item-padding-y) var(--autocomplete-item-padding-x);
    cursor: pointer;
    transition: background-color var(--transition-fast);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--autocomplete-item-gap);
    font-size: var(--autocomplete-item-font-size);
}

.autocomplete-item:hover,
.autocomplete-item.is-active {
    background-color: var(--autocomplete-item-hover-bg);
}

.autocomplete-item__text {
    flex: 1;
    color: var(--autocomplete-item-text-color);
}

/* Badge de count */
.autocomplete-item__count {
    font-size: var(--autocomplete-count-font-size);
    color: var(--autocomplete-count-color);
    background-color: var(--autocomplete-count-bg);
    padding: var(--space-1) var(--autocomplete-count-padding-x);
    border-radius: var(--autocomplete-count-radius);
    margin-left: var(--autocomplete-item-gap);
}

/* -----------------------------------------------------------------------------
   Item "new" (crear nuevo)
   ----------------------------------------------------------------------------- */
.autocomplete-item--new {
    border-top: var(--border-width) solid var(--autocomplete-new-border);
    background-color: var(--autocomplete-new-bg);
    color: var(--autocomplete-new-color);
    font-weight: var(--font-weight-medium);
}

.autocomplete-item--new:hover {
    background-color: var(--autocomplete-new-hover-bg);
}

.autocomplete-item--new::before {
    content: "+ ";
    margin-right: var(--space-1);
}

/* -----------------------------------------------------------------------------
   Estados vacío y loading
   ----------------------------------------------------------------------------- */
.autocomplete-empty {
    padding: var(--space-3);
    text-align: center;
    color: var(--autocomplete-empty-color);
    font-size: var(--autocomplete-font-size);
}

.autocomplete-loading {
    padding: var(--space-3);
    text-align: center;
    color: var(--autocomplete-loading-color);
    font-size: var(--autocomplete-font-size);
}

/* -----------------------------------------------------------------------------
   Scrollbar personalizado
   ----------------------------------------------------------------------------- */
.autocomplete-dropdown::-webkit-scrollbar {
    width: var(--autocomplete-scrollbar-width);
}

.autocomplete-dropdown::-webkit-scrollbar-track {
    background: var(--autocomplete-scrollbar-track);
    border-radius: var(--radius-sm);
}

.autocomplete-dropdown::-webkit-scrollbar-thumb {
    background: var(--autocomplete-scrollbar-thumb);
    border-radius: var(--radius-sm);
}

.autocomplete-dropdown::-webkit-scrollbar-thumb:hover {
    background: var(--color-gray-500);
}

/* -----------------------------------------------------------------------------
   Variante compacta
   ----------------------------------------------------------------------------- */
.autocomplete-wrapper--compact .autocomplete-input {
    padding: var(--space-1) var(--space-2) var(--space-1) var(--space-2);
    font-size: var(--text-sm);
}

.autocomplete-wrapper--compact .autocomplete-item {
    padding: var(--space-1) var(--space-2);
    font-size: var(--text-sm);
}

.autocomplete-wrapper--compact .autocomplete-dropdown {
    max-height: 200px;
}

/* -----------------------------------------------------------------------------
   Variante con icono
   ----------------------------------------------------------------------------- */
.autocomplete-wrapper--icon .autocomplete-input {
    padding-left: var(--space-8);
}

.autocomplete-wrapper--icon .autocomplete-icon {
    position: absolute;
    left: var(--space-2);
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-gray-400);
    pointer-events: none;
}

/* -----------------------------------------------------------------------------
   Error state
   ----------------------------------------------------------------------------- */
.autocomplete-wrapper.has-error .autocomplete-input {
    border-color: var(--danger-text);
}

.autocomplete-wrapper.has-error .autocomplete-input:focus {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

/* -----------------------------------------------------------------------------
   Disabled state
   ----------------------------------------------------------------------------- */
.autocomplete-wrapper.is-disabled .autocomplete-input {
    background-color: var(--color-gray-100);
    color: var(--color-gray-500);
    cursor: not-allowed;
}

/* -----------------------------------------------------------------------------
   Responsive
   ----------------------------------------------------------------------------- */
@media (max-width: 640px) {
    .autocomplete-dropdown {
        position: fixed;
        top: auto;
        bottom: 0;
        left: 0;
        right: 0;
        margin-top: 0;
        max-height: 50vh;
        border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    }
    
    .autocomplete-item {
        padding: var(--space-3);
    }
}