/* ===================================
   AJAX Product Filters - Compact Dropdown UI
   =================================== */

:root {
    --apf-primary: #6366f1;
    --apf-primary-dark: #4f46e5;
    --apf-secondary: #ec4899;
    --apf-text: #1f2937;
    --apf-text-light: #6b7280;
    --apf-border: #e5e7eb;
    --apf-bg: #ffffff;
    --apf-bg-hover: #f9fafb;
    --apf-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --apf-shadow-hover: 0 4px 12px rgba(99, 102, 241, 0.15);
    --apf-shadow-dropdown: 0 10px 40px rgba(0, 0, 0, 0.15);
    --apf-radius: 12px;
    --apf-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Container principale */
.apf-filters-container {
    position: relative;
    margin-bottom: 2.5rem;
    background: var(--apf-bg);
    border-radius: var(--apf-radius);
    box-shadow: var(--apf-shadow);
    overflow: visible;
}

.apf-filters-wrapper {
    padding: 1.75rem;
}

/* Context Info (categoria corrente) */
.apf-context-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    border-left: 4px solid #f59e0b;
    border-radius: 8px;
    font-size: 0.9375rem;
    color: #92400e;
}

.apf-context-info .dashicons {
    width: 18px;
    height: 18px;
    font-size: 18px;
    color: #f59e0b;
}

.apf-context-info strong {
    color: #78350f;
    font-weight: 700;
}

/* Layout Filtri - Riga Orizzontale */
.apf-filters-row {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

/* Gruppo filtro singolo (dropdown) */
.apf-filter-group {
    position: relative;
    flex: 1;
    min-width: 180px;
}

/* Bottone dropdown principale */
.apf-filter-trigger {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 0.875rem 1.25rem;
    background: var(--apf-bg);
    border: 2px solid var(--apf-border);
    border-radius: var(--apf-radius);
    color: var(--apf-text);
    font-size: 0.9375rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--apf-transition);
    outline: none;
    text-align: left;
}

.apf-filter-trigger:hover {
    border-color: var(--apf-primary);
    box-shadow: var(--apf-shadow-hover);
}

/* Stato attivo (con selezioni) */
.apf-filter-group.has-selection .apf-filter-trigger {
    background: linear-gradient(135deg, var(--apf-primary) 0%, var(--apf-primary-dark) 100%);
    border-color: var(--apf-primary);
    color: #ffffff;
}

/* Stato dropdown aperto */
.apf-filter-group.is-open .apf-filter-trigger {
    border-color: var(--apf-primary);
    box-shadow: var(--apf-shadow-hover);
}

/* Contenuto del trigger */
.apf-trigger-content {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    flex: 1;
}

.apf-trigger-icon {
    width: 18px;
    height: 18px;
    font-size: 18px;
}

.apf-trigger-label {
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Badge contatore */
.apf-trigger-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 1.5rem;
    height: 1.5rem;
    padding: 0 0.375rem;
    background: var(--apf-primary);
    color: #ffffff;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
    margin-left: auto;
    animation: badgePop 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.apf-filter-group.has-selection .apf-trigger-badge {
    background: rgba(255, 255, 255, 0.3);
}

@keyframes badgePop {
    0% {
        transform: scale(0);
    }

    50% {
        transform: scale(1.2);
    }

    100% {
        transform: scale(1);
    }
}

/* Freccia dropdown */
.apf-trigger-arrow {
    margin-left: 0.5rem;
    font-size: 1rem;
    transition: transform 0.3s ease;
}

.apf-filter-group.is-open .apf-trigger-arrow {
    transform: rotate(180deg);
}

/* Dropdown contenitore */
.apf-filter-dropdown {
    position: absolute;
    top: calc(100% + 0.5rem);
    left: 0;
    right: 0;
    background: var(--apf-bg);
    border: 2px solid var(--apf-border);
    border-radius: var(--apf-radius);
    box-shadow: var(--apf-shadow-dropdown);
    z-index: 1000;
    max-height: 400px;
    overflow-y: auto;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.apf-filter-group.is-open .apf-filter-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* Scrollbar personalizzata */
.apf-filter-dropdown::-webkit-scrollbar {
    width: 8px;
}

.apf-filter-dropdown::-webkit-scrollbar-track {
    background: var(--apf-bg-hover);
    border-radius: 0 var(--apf-radius) var(--apf-radius) 0;
}

.apf-filter-dropdown::-webkit-scrollbar-thumb {
    background: var(--apf-border);
    border-radius: 4px;
}

.apf-filter-dropdown::-webkit-scrollbar-thumb:hover {
    background: var(--apf-text-light);
}

/* Items dentro dropdown */
.apf-dropdown-items {
    padding: 0.5rem;
}

/* Singolo item */
.apf-dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--apf-transition);
}

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

.apf-dropdown-item.selected {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(79, 70, 229, 0.1) 100%);
}

/* Checkbox/Radio */
.apf-dropdown-checkbox {
    width: 18px;
    height: 18px;
    border: 2px solid var(--apf-border);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: var(--apf-transition);
}

.apf-dropdown-item.selected .apf-dropdown-checkbox {
    background: var(--apf-primary);
    border-color: var(--apf-primary);
}

.apf-dropdown-checkbox::after {
    content: '✓';
    color: #ffffff;
    font-size: 12px;
    font-weight: 700;
    opacity: 0;
    transform: scale(0);
    transition: var(--apf-transition);
}

.apf-dropdown-item.selected .apf-dropdown-checkbox::after {
    opacity: 1;
    transform: scale(1);
}

/* Radio style (per selezione singola) */
.apf-dropdown-item.single-select .apf-dropdown-checkbox {
    border-radius: 50%;
}

/* Label item */
.apf-dropdown-label {
    flex: 1;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--apf-text);
}

.apf-dropdown-item.selected .apf-dropdown-label {
    font-weight: 600;
    color: var(--apf-primary);
}

/* Contatore prodotti */
.apf-dropdown-count {
    font-size: 0.8125rem;
    color: var(--apf-text-light);
    font-weight: 600;
}

/* Divisore "Tutti" */
.apf-dropdown-divider {
    height: 1px;
    background: var(--apf-border);
    margin: 0.5rem 0;
}

/* Item "Tutti" speciale */
.apf-dropdown-item.all-item {
    border-bottom: 1px solid var(--apf-border);
    margin-bottom: 0.5rem;
    border-radius: 8px 8px 0 0;
}

/* Filtri attivi */
.apf-active-filters {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.75rem;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 2px dashed var(--apf-border);
}

.apf-active-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--apf-text-light);
}

.apf-active-items {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    flex: 1;
}

.apf-active-item {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.375rem 0.75rem;
    background: linear-gradient(135deg, var(--apf-secondary) 0%, #db2777 100%);
    color: #ffffff;
    border-radius: 50px;
    font-size: 0.8125rem;
    font-weight: 600;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-10px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.apf-active-item-remove {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.125rem;
    height: 1.125rem;
    background: rgba(255, 255, 255, 0.25);
    border-radius: 50%;
    cursor: pointer;
    transition: var(--apf-transition);
}

.apf-active-item-remove:hover {
    background: rgba(255, 255, 255, 0.4);
    transform: rotate(90deg);
}

.apf-clear-all {
    padding: 0.5rem 1rem;
    background: transparent;
    border: 2px solid var(--apf-border);
    border-radius: 50px;
    color: var(--apf-text-light);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--apf-transition);
}

.apf-clear-all:hover {
    background: #fee2e2;
    border-color: #ef4444;
    color: #dc2626;
}

/* Loading overlay */
.apf-loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.9);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 10;
    backdrop-filter: blur(4px);
}

.apf-loading-overlay.active {
    display: flex;
}

.apf-spinner {
    width: 3rem;
    height: 3rem;
    border: 4px solid var(--apf-border);
    border-top-color: var(--apf-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Container prodotti */
#apf-products-container {
    position: relative;
    min-height: 200px;
}

#apf-products-container.loading {
    opacity: 0.5;
    pointer-events: none;
}

/* Nessun prodotto */
.apf-no-products {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem 2rem;
    text-align: center;
}

.apf-no-products-icon {
    width: 5rem;
    height: 5rem;
    margin-bottom: 1.5rem;
    color: var(--apf-border);
    stroke-width: 1.5;
}

.apf-no-products h3 {
    margin: 0 0 0.5rem 0;
    font-size: 1.5rem;
    color: var(--apf-text);
}

.apf-no-products p {
    margin: 0;
    color: var(--apf-text-light);
}

/* Paginazione */
.apf-pagination {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 3rem;
}

.apf-pagination a,
.apf-pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 2.5rem;
    height: 2.5rem;
    padding: 0 0.75rem;
    background: var(--apf-bg-hover);
    border: 2px solid var(--apf-border);
    border-radius: 8px;
    color: var(--apf-text);
    font-weight: 600;
    text-decoration: none;
    transition: var(--apf-transition);
}

.apf-pagination a:hover {
    background: var(--apf-primary);
    border-color: var(--apf-primary);
    color: #ffffff;
    transform: translateY(-2px);
}

.apf-pagination .current {
    background: var(--apf-primary);
    border-color: var(--apf-primary);
    color: #ffffff;
}

/* Responsive */
@media (max-width: 1024px) {
    .apf-filter-group {
        min-width: 160px;
    }
}

@media (max-width: 768px) {
    .apf-filters-wrapper {
        padding: 1.25rem;
    }

    /* Mobile: filtri in verticale */
    .apf-filters-row {
        flex-direction: column;
        gap: 0.75rem;
    }

    .apf-filter-group {
        width: 100%;
        min-width: 0;
    }

    .apf-filter-dropdown {
        max-height: 300px;
    }

    .apf-active-filters {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 480px) {
    .apf-filter-trigger {
        padding: 0.75rem 1rem;
        font-size: 0.875rem;
    }

    .apf-trigger-label {
        font-size: 0.8125rem;
    }

    .apf-dropdown-item {
        padding: 0.625rem 0.875rem;
    }

    .apf-dropdown-label {
        font-size: 0.875rem;
    }
}

/* Click outside overlay */
.apf-dropdown-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 999;
    display: none;
}

.apf-dropdown-overlay.active {
    display: block;
}