/* Container principale della sezione filtri */
.filter-section {
    background: linear-gradient(135deg, rgba(var(--primary-rgb), 0.08) 0%, rgba(var(--filterColor-rgb), 0.05) 50%, rgba(var(--filterBackground-rgb), 0.08) 100%);
    background-size: 200% 200%;
    border-radius: 16px;
    margin: 0 2rem 2rem;
    max-width: calc(100% - 4rem);
    border: 2px solid rgba(var(--filterBackground-rgb), 0.15);
    box-shadow: 0 6px 20px rgba(var(--filterBackground-rgb), 0.1), 0 2px 8px rgba(var(--filterColor-rgb), 0.05);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    color: rgb(var(--filterColor-rgb));
}

    .filter-section:hover {
        border-color: rgba(var(--filterBackground-rgb), 0.25);
        box-shadow: 0 8px 25px rgba(var(--filterBackground-rgb), 0.15), 0 4px 12px rgba(var(--filterColor-rgb), 0.08);
    }

/* Header della sezione filtri - Accordion Toggle */
.filter-section-header.filter-accordion-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1.5rem 2rem;
    border-bottom: 2px solid rgba(var(--filterBackground-rgb), 0.12);
    cursor: pointer;
    transition: all 0.3s ease;
    user-select: none;
}

    .filter-section-header.filter-accordion-header:hover {
        background: rgba(var(--filterBackground-rgb), 0.05);
    }

    .filter-section-header.filter-accordion-header:active {
        background: rgba(var(--filterBackground-rgb), 0.08);
    }

/* Header content wrapper */
.filter-header-content {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex: 1;
}

.filter-section-title {
    color: var(--primary-color);
    font-size: 0.9rem;
    font-weight: 700;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    letter-spacing: 0.3px;
    text-transform: uppercase;
}

    .filter-section-title i {
        color: var(--primary-color);
        font-size: 1.1rem;
        background: linear-gradient(135deg, rgba(var(--filterBackground-rgb), 0.15) 0%, rgba(var(--filterColor-rgb), 0.1) 100%);
        padding: 0.5rem;
        border-radius: 10px;
        box-shadow: 0 2px 6px rgba(var(--filterBackground-rgb), 0.15);
    }

/* Toggle Button */
.filter-toggle-btn {
    background: linear-gradient(135deg, rgba(var(--filterBackground-rgb), 0.1) 0%, rgba(var(--filterColor-rgb), 0.08) 100%);
    border: 2px solid rgba(var(--filterBackground-rgb), 0.2);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    padding: 0;
    flex-shrink: 0;
}

    .filter-toggle-btn:hover {
        background: linear-gradient(135deg, rgba(var(--filterBackground-rgb), 0.15) 0%, rgba(var(--filterColor-rgb), 0.12) 100%);
        border-color: rgba(var(--filterBackground-rgb), 0.35);
        transform: scale(1.05);
    }

    .filter-toggle-btn:active {
        transform: scale(0.95);
    }

.filter-toggle-icon {
    color: var(--primary-color);
    font-size: 1rem;
    transition: transform 0.3s ease;
}

/* Ruota l'icona quando l'accordion è espanso */
.filter-accordion-header.expanded .filter-toggle-icon {
    transform: rotate(180deg);
}

/* Collapse container */
.filter-section-collapse {
    transition: all 0.3s ease;
}

    .filter-section-collapse.collapsing {
        overflow: hidden;
    }

/* Contenuto dei filtri */
.filter-section-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.25rem;
    align-items: end;
    padding: 2rem;
}

/* Singolo campo filtro */
.filter-field {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

    .filter-field label {
        color: var(--primary-color);
        font-size: 0.875rem;
        font-weight: 600;
        margin-bottom: 0.25rem;
        display: flex;
        align-items: center;
        gap: 0.4rem;
    }

        .filter-field label i {
            font-size: 0.8rem;
            color: var(--primary-color);
        }

    .filter-field input,
    .filter-field select,
    .filter-field .form-control,
    .filter-field .form-select {
        border: 2px solid rgba(var(--filterBackground-rgb), 0.2);
        border-radius: 10px;
        padding: 0.65rem 1rem;
        font-size: 0.95rem;
        transition: all 0.3s ease;
        background: rgba(255, 255, 255, 0.95);
        color: var(--text-main);
    }

        .filter-field input:focus,
        .filter-field select:focus,
        .filter-field .form-control:focus,
        .filter-field .form-select:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px rgba(var(--filterBackground-rgb), 0.1), 0 4px 12px rgba(var(--filterBackground-rgb), 0.15);
            outline: none;
            background: #ffffff;
        }

        .filter-field input::placeholder {
            color: var(--text-muted);
            font-style: italic;
        }

    /* ==========================================================================
   GESTIONE COERENTE FORM-CHECK & FORM-SWITCH (Checkbox & Radio)
   ================================================================---------- */
    .filter-field .form-check {
        display: flex;
        align-items: center;
        gap: 0.6rem;
        padding-left: 0;
        margin-top: auto;
        margin-bottom: auto;
        min-height: calc(2.2rem + 2px);
    }

    .filter-field .form-check-input {
        width: 1.25rem;
        height: 1.25rem;
        margin-top: 0;
        margin-left: 0;
        background-color: rgba(255, 255, 255, 0.95);
        border: 2px solid rgba(var(--filterBackground-rgb), 0.3);
        border-radius: 6px;
        transition: all 0.2s ease-in-out;
        cursor: pointer;
        flex-shrink: 0;
        float: none;
    }

        .filter-field .form-check-input:checked {
            background-color: var(--primary-color);
            border-color: var(--primary-color);
            box-shadow: 0 2px 6px rgba(var(--filterBackground-rgb), 0.2);
        }

        .filter-field .form-check-input:focus {
            border-color: var(--primary-color);
            outline: none;
            box-shadow: 0 0 0 3px rgba(var(--filterBackground-rgb), 0.15);
        }

    .filter-field .form-check-label {
        color: var(--text-main, inherit);
        font-size: 0.95rem;
        font-weight: 500;
        cursor: pointer;
        margin-bottom: 0;
    }

    /* Variante specifica per Form Switch */
    .filter-field .form-switch {
        padding-left: 0;
    }

        .filter-field .form-switch .form-check-input {
            width: 2.75rem;
            height: 1.4rem;
            border-radius: 2rem;
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3e%3ccircle r='3' fill='rgba%280, 0, 0, 0.25%29'/%3e%3c/svg%3e");
            background-position: left center;
            transition: background-position 0.2s ease-in-out, background-color 0.2s ease-in-out, border-color 0.2s ease-in-out;
        }

            .filter-field .form-switch .form-check-input:checked {
                background-position: right center;
                background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3e%3ccircle r='3' fill='%23fff'/%3e%3c/svg%3e");
                background-color: var(--primary-color);
                border-color: var(--primary-color);
            }

/* Sezione azioni filtri */
.filter-actions {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    align-items: center;
    margin-top: 0.5rem;
}

/* Pulsante applica filtri */
.btn-apply-filters {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border: none;
    border-radius: 12px;
    padding: 0.75rem 1.75rem;
    color: #ffffff;
    font-weight: 700;
    font-size: 0.95rem;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(var(--filterBackground-rgb), 0.3), 0 2px 4px rgba(var(--filterColor-rgb), 0.2);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

    .btn-apply-filters::before {
        content: '';
        position: absolute;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100%;
        background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
        transition: left 0.5s ease;
    }

    .btn-apply-filters:hover::before {
        left: 100%;
    }

    .btn-apply-filters:hover {
        filter: brightness(0.9);
        transform: translateY(-2px);
        box-shadow: 0 6px 18px rgba(var(--filterBackground-rgb), 0.4), 0 3px 8px rgba(var(--filterColor-rgb), 0.3);
        color: #ffffff;
    }

    .btn-apply-filters:active {
        transform: translateY(0);
        box-shadow: 0 3px 10px rgba(var(--filterBackground-rgb), 0.3), 0 1px 4px rgba(var(--filterColor-rgb), 0.2);
    }

    .btn-apply-filters i {
        font-size: 1rem;
    }

/* Pulsante reset filtri */
.btn-reset-filters {
    background: rgba(var(--filterBackground-rgb), 0.08);
    border: 2px solid rgba(var(--filterBackground-rgb), 0.2);
    border-radius: 12px;
    padding: 0.65rem 1.5rem;
    color: var(--primary-color);
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    transition: all 0.3s ease;
    box-shadow: 0 2px 6px rgba(var(--filterBackground-rgb), 0.08);
    cursor: pointer;
    white-space: nowrap;
}

    .btn-reset-filters:hover {
        background: rgba(var(--filterBackground-rgb), 0.15);
        border-color: rgba(var(--filterBackground-rgb), 0.35);
        filter: brightness(0.9);
        transform: translateY(-2px);
        box-shadow: 0 4px 12px rgba(var(--filterBackground-rgb), 0.15);
        text-decoration: none;
    }

    .btn-reset-filters:active {
        transform: translateY(0);
        box-shadow: 0 2px 6px rgba(var(--filterBackground-rgb), 0.08);
    }

    .btn-reset-filters i {
        font-size: 0.95rem;
    }

/* Badge contatore filtri attivi */
.filter-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 28px;
    height: 28px;
    padding: 0 0.6rem;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: #ffffff;
    font-size: 0.8rem;
    font-weight: 700;
    border-radius: 14px;
    box-shadow: 0 2px 8px rgba(var(--filterBackground-rgb), 0.3);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.05);
    }
}

/* Sezione espandibile per filtri avanzati */
.filter-section-expandable {
    margin-top: 1.25rem;
    padding: 1.25rem 2rem;
    border-top: 2px solid rgba(var(--filterBackground-rgb), 0.1);
}

.filter-expand-toggle {
    background: transparent;
    border: none;
    color: var(--primary-color);
    font-weight: 600;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    padding: 0.5rem 0;
    transition: all 0.3s ease;
}

    .filter-expand-toggle:hover {
        filter: brightness(0.8);
        text-decoration: underline;
    }

    .filter-expand-toggle i {
        transition: transform 0.3s ease;
    }

    .filter-expand-toggle.expanded i {
        transform: rotate(180deg);
    }

.filter-advanced-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
}

    .filter-advanced-content.show {
        max-height: 500px;
        margin-top: 1rem;
    }

/* Variante compatta */
.filter-section-compact {
    margin: 0 2rem 1.5rem;
}

    .filter-section-compact .filter-section-header {
        padding: 1rem 1.5rem;
    }

    .filter-section-compact .filter-section-content {
        padding: 1.5rem;
        gap: 1rem;
    }

/* Variante evidenziata */
.filter-section-highlighted {
    background: linear-gradient(135deg, rgba(var(--filterColor-rgb), 0.1) 0%, rgba(var(--filterBackground-rgb), 0.08) 50%, rgba(var(--filterColor-rgb), 0.1) 100%);
    border-color: rgba(var(--filterColor-rgb), 0.25);
}

    .filter-section-highlighted .filter-section-title {
        color: var(--secondary-color);
    }

        .filter-section-highlighted .filter-section-title i {
            color: var(--secondary-color);
            background: linear-gradient(135deg, rgba(var(--filterColor-rgb), 0.18) 0%, rgba(var(--filterBackground-rgb), 0.12) 100%);
        }

/* Responsive behavior */
@media (max-width: 992px) {
    .filter-section {
        margin: 0 1.5rem 2rem;
        max-width: calc(100% - 3rem);
    }

    .filter-section-header.filter-accordion-header {
        padding: 1.25rem 1.5rem;
    }

    .filter-section-content {
        padding: 1.5rem;
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
        gap: 1rem;
    }
}

@media (max-width: 768px) {
    .filter-section {
        margin: 0 1rem 1.5rem;
        max-width: calc(100% - 2rem);
    }

    .filter-section-header.filter-accordion-header {
        padding: 1rem 1.25rem;
    }

    .filter-header-content {
        gap: 0.5rem;
    }

    .filter-section-title {
        font-size: 0.85rem;
    }

        .filter-section-title i {
            font-size: 1rem;
            padding: 0.4rem;
        }

    .filter-toggle-btn {
        width: 36px;
        height: 36px;
    }

    .filter-section-content {
        padding: 1.25rem;
        grid-template-columns: 1fr;
        gap: 0.875rem;
    }

    .filter-actions {
        flex-direction: column;
        width: 100%;
    }

    .btn-apply-filters,
    .btn-reset-filters {
        width: 100%;
        justify-content: center;
    }

    .filter-badge {
        min-width: 24px;
        height: 24px;
        font-size: 0.75rem;
    }
}

@media (max-width: 576px) {
    .filter-section {
        margin: 0 0.75rem 1.25rem;
        max-width: calc(100% - 1.5rem);
        border-radius: 12px;
    }

    .filter-section-header.filter-accordion-header {
        padding: 0.875rem 1rem;
    }

    .filter-section-title {
        font-size: 0.8rem;
    }

        .filter-section-title i {
            font-size: 0.95rem;
            padding: 0.35rem;
        }

    .filter-toggle-btn {
        width: 32px;
        height: 32px;
    }

    .filter-toggle-icon {
        font-size: 0.9rem;
    }

    .filter-section-content {
        padding: 1rem;
    }

    .filter-field label {
        font-size: 0.8rem;
    }

    .filter-field input,
    .filter-field select,
    .filter-field .form-control,
    .filter-field .form-select {
        padding: 0.55rem 0.85rem;
        font-size: 0.9rem;
    }

    .btn-apply-filters,
    .btn-reset-filters {
        padding: 0.65rem 1.25rem;
        font-size: 0.9rem;
    }

    .filter-section-expandable {
        padding: 1rem 1.25rem;
    }
}