.bf-active-filters-bar {
    position: sticky;
    top: 0;
    z-index: var(--bf-z-active-bar);
    background: var(--bf-secondary);
    border-bottom: 1px solid var(--bf-gray-200);
    margin-bottom: var(--bf-spacing-lg);
    transition: all var(--bf-transition-base);
}

.bf-active-filters-container {
    display: flex;
    align-items: center;
    gap: var(--bf-spacing-md);
    padding: var(--bf-spacing-md) var(--bf-spacing-lg);
    flex-wrap: wrap;
}

.bf-active-filters-header {
    display: flex;
    align-items: center;
    gap: var(--bf-spacing-sm);
    flex-shrink: 0;
}

.bf-active-filters-title {
    font-size: var(--bf-font-size-sm);
    font-weight: var(--bf-font-weight-semibold);
    color: var(--bf-gray-700);
}

.bf-active-filters-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    background: var(--bf-accent);
    color: var(--bf-secondary);
    font-size: 11px;
    font-weight: var(--bf-font-weight-bold);
    border-radius: 10px;
}

.bf-active-filters-chips {
    display: flex;
    align-items: center;
    gap: var(--bf-spacing-sm);
    flex-wrap: wrap;
    flex: 1;
}

.bf-filter-chip {
    display: inline-flex;
    align-items: center;
    gap: var(--bf-spacing-sm);
    padding: 6px 12px;
    background: var(--bf-accent-light);
    color: var(--bf-accent-dark);
    font-size: var(--bf-font-size-xs);
    font-weight: var(--bf-font-weight-semibold);
    border-radius: 16px;
    transition: all var(--bf-transition-fast);
}

.bf-filter-chip:hover {
    background: var(--bf-accent);
    color: var(--bf-secondary);
}

.bf-chip-remove {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    color: currentColor;
    font-size: 14px;
    line-height: 1;
    transition: transform var(--bf-transition-fast);
}

.bf-chip-remove:hover {
    transform: scale(1.2);
}

.bf-clear-all-btn {
    padding: 8px 16px;
    background: var(--bf-gray-100);
    border: 1px solid var(--bf-gray-300);
    border-radius: var(--bf-radius-md);
    font-size: var(--bf-font-size-xs);
    font-weight: var(--bf-font-weight-semibold);
    color: var(--bf-gray-700);
    cursor: pointer;
    transition: all var(--bf-transition-fast);
    white-space: nowrap;
}

.bf-clear-all-btn:hover {
    background: var(--bf-gray-200);
    color: var(--bf-primary);
}

/* =============================================================================
   RESPONSIVE BREAKPOINTS
   ========================================================================== */

/* Mobile (< 768px) */
@media (max-width: 767px) {
    .bf-sidebar {
        max-width: 100vw;
    }

    .bf-sidebar-header,
    .bf-sidebar-content,
    .bf-sidebar-actions {
        padding: var(--bf-spacing-md);
    }

    .bf-sidebar-title {
        font-size: var(--bf-font-size-base);
    }

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

    .bf-active-filters-chips {
        width: 100%;
    }

    .bf-clear-all-btn {
        width: 100%;
    }
}

/* Tablet (768px - 1023px) */
@media (min-width: 768px) and (max-width: 1023px) {
    .bf-sidebar {
        max-width: 360px;
    }
}

/* Desktop (≥ 1024px) */
@media (min-width: 1024px) {
    .bf-sidebar {
        max-width: 380px;
    }
}

/* Extra Large (≥ 1440px) */
@media (min-width: 1440px) {
    .bf-sidebar {
        max-width: 420px;
    }
}