/* ==========================================================================
   NordSync Advanced Filter — Frontend CSS  v2.0.0
   ========================================================================== */

/* ── CSS custom properties ──────────────────────────────────────────────── */
.naf-filter-sidebar {
    --naf-accent:        #2563eb;
    --naf-accent-hover:  #1d4ed8;
    --naf-bg:            #ffffff;
    --naf-border:        #e5e7eb;
    --naf-text:          #111827;
    --naf-title:         #111827;
    --naf-muted:         #6b7280;
    --naf-swatch-size:   28px;
    --naf-radius:        6px;
    --naf-transition:    0.18s ease;

    background: var(--naf-bg);
    color: var(--naf-text);
    font-size: 0.9375rem;
    line-height: 1.5;
}

/* ── Layouts ─────────────────────────────────────────────────────────────── */
.naf-filter-sidebar.naf-layout-vertical {
    display: flex;
    flex-direction: column;
}

.naf-filter-sidebar.naf-layout-horizontal {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 16px;
    align-items: flex-start;
}

.naf-layout-horizontal .naf-filter-section {
    flex: 1 1 200px;
    min-width: 160px;
}

/* ── Filter section wrapper ──────────────────────────────────────────────── */
.naf-filter-section {
    border-bottom: 1px solid var(--naf-border);
    padding: 0;
}

.naf-filter-section:last-child { border-bottom: none; }

/* ── Section header ──────────────────────────────────────────────────────── */
.naf-filter-section__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 0;
    cursor: pointer;
    user-select: none;
}

.naf-filter-section__title {
    font-size: 20px;
    font-weight: 500;
    color: var(--naf-title);
    margin: 0;
}

.naf-section-clear {
    font-size: 0.8rem;
    color: var(--naf-muted);
    text-decoration: none;
    margin-left: auto;
    margin-right: 8px;
    transition: color var(--naf-transition);
}
.naf-section-clear:hover { color: var(--naf-accent); }

.naf-filter-section__toggle {
    background: none;
    border: none;
    padding: 4px;
    cursor: pointer;
    color: var(--naf-muted);
    transition: transform var(--naf-transition);
    flex-shrink: 0;
    display: flex;
    align-items: center;
}
.naf-filter-section__toggle svg { width: 16px; height: 16px; display: block; }
.naf-filter-section.is-open .naf-filter-section__toggle { transform: rotate(180deg); }

/* ── Section body ────────────────────────────────────────────────────────── */
.naf-filter-section__body { padding-bottom: 14px; }
.naf-filter-section.is-closed .naf-filter-section__body { display: none; }

/* ── Search inside filter ────────────────────────────────────────────────── */
.naf-filter-search {
    width: 100%;
    padding: 7px 10px;
    border: 1px solid var(--naf-border);
    border-radius: var(--naf-radius);
    font-size: 0.875rem;
    margin-bottom: 10px;
    background: transparent;
    color: var(--naf-text);
    box-sizing: border-box;
    outline: none;
    transition: border-color var(--naf-transition);
}
.naf-filter-search:focus { border-color: var(--naf-accent); }

/* ── Term list ───────────────────────────────────────────────────────────── */
.naf-term-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 2px; }
.naf-term-item { display: flex; }

.naf-term-link {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 5px 4px;
    text-decoration: none;
    color: var(--naf-text);
    border-radius: var(--naf-radius);
    width: 100%;
    font-size: 0.9rem;
    transition: color var(--naf-transition), background var(--naf-transition);
}
.naf-term-link:hover { color: var(--naf-accent); background: color-mix(in srgb, var(--naf-accent) 8%, transparent); }
.naf-term-item.is-active > .naf-term-link { color: var(--naf-accent); font-weight: 500; }
.naf-term-item.is-greyed > .naf-term-link { opacity: 0.5; pointer-events: none; }

/* Columns */
.naf-term-list.naf-columns-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2px; }
.naf-term-list.naf-columns-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px; }
.naf-term-list.naf-columns-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2px; }

/* ── Input indicators (checkbox / radio) ─────────────────────────────────── */
.naf-input-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    border: 2px solid var(--naf-border);
    background: var(--naf-bg);
    flex-shrink: 0;
    transition: border-color var(--naf-transition), background var(--naf-transition);
}
.naf-input-checkbox { border-radius: 3px; }
.naf-input-radio    { border-radius: 50%; }

.naf-term-item.is-active .naf-input-checkbox { background: var(--naf-accent); border-color: var(--naf-accent); }
.naf-term-item.is-active .naf-input-checkbox::after {
    content: '';
    display: block;
    width: 9px;
    height: 5px;
    border-left: 2px solid #fff;
    border-bottom: 2px solid #fff;
    transform: rotate(-45deg) translateY(-1px);
}
.naf-term-item.is-active .naf-input-radio { border-color: var(--naf-accent); }
.naf-term-item.is-active .naf-input-radio::after {
    content: '';
    display: block;
    width: 8px;
    height: 8px;
    background: var(--naf-accent);
    border-radius: 50%;
}

.naf-term-count { margin-left: auto; font-size: 0.78rem; color: var(--naf-muted); }

/* ── Color swatches ──────────────────────────────────────────────────────── */
.naf-term-list.naf-design-color { flex-direction: row; flex-wrap: wrap; gap: 6px; }
.naf-design-color .naf-term-item { display: block; }

.naf-color-swatch {
    display: flex;
    align-items: center;
    justify-content: center;
    width: var(--naf-swatch-size);
    height: var(--naf-swatch-size);
    border-radius: 50%;
    border: 2px solid transparent;
    cursor: pointer;
    transition: transform var(--naf-transition), box-shadow var(--naf-transition);
}
.naf-color-swatch--square { border-radius: 4px; }
.naf-color-swatch:hover { transform: scale(1.1); box-shadow: 0 0 0 2px var(--naf-bg), 0 0 0 4px var(--naf-border); }
.naf-term-item.is-active .naf-color-swatch { box-shadow: 0 0 0 2px var(--naf-bg), 0 0 0 4px var(--naf-accent); }

/* ── Label chips ─────────────────────────────────────────────────────────── */
.naf-term-list.naf-design-label { flex-direction: row; flex-wrap: wrap; gap: 6px; }
.naf-design-label .naf-term-item { display: block; }

.naf-label-chip {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border: 1px solid var(--naf-border);
    border-radius: var(--naf-radius);
    font-size: 0.85rem;
    text-decoration: none;
    color: var(--naf-text);
    white-space: nowrap;
    transition: border-color var(--naf-transition), background var(--naf-transition), color var(--naf-transition);
}
.naf-label-chip:hover { border-color: var(--naf-accent); color: var(--naf-accent); }
.naf-term-item.is-active .naf-label-chip { background: var(--naf-accent); border-color: var(--naf-accent); color: #fff; }

/* ── Select dropdown ─────────────────────────────────────────────────────── */
.naf-term-select,
.naf-orderby-select {
    width: 100%;
    padding: 8px 32px 8px 10px;
    border: 1px solid var(--naf-border);
    border-radius: var(--naf-radius);
    background: var(--naf-bg);
    color: var(--naf-text);
    font-size: 0.9rem;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    background-size: 16px;
    cursor: pointer;
    outline: none;
    box-sizing: border-box;
    transition: border-color var(--naf-transition);
}
.naf-term-select:focus, .naf-orderby-select:focus { border-color: var(--naf-accent); }

/* ── Price slider ─────────────────────────────────────────────────────────── */
.naf-price-slider-wrap { padding: 8px 4px 4px; }
.naf-price-slider { margin: 16px 4px 20px; }

.naf-price-slider.noUi-target { background: var(--naf-border); border: none; box-shadow: none; height: 4px; border-radius: 2px; }
.naf-price-slider .noUi-connect { background: var(--naf-accent); }
.naf-price-slider .noUi-handle {
    width: 18px; height: 18px; right: -9px; top: -7px;
    background: var(--naf-bg); border: 2px solid var(--naf-accent); border-radius: 50%;
    box-shadow: 0 1px 4px rgba(0,0,0,.15); cursor: pointer;
}
.naf-price-slider .noUi-handle::before,
.naf-price-slider .noUi-handle::after { display: none; }
.naf-price-slider .noUi-tooltip {
    background: var(--naf-accent); color: #fff; border: none; border-radius: 4px;
    font-size: 0.78rem; padding: 2px 6px; bottom: 24px;
}

.naf-price-inputs { display: flex; align-items: center; gap: 8px; margin-top: 8px; }
.naf-price-input-group {
    display: flex; align-items: center; border: 1px solid var(--naf-border);
    border-radius: var(--naf-radius); overflow: hidden; flex: 1;
    transition: border-color var(--naf-transition);
}
.naf-price-input-group:focus-within { border-color: var(--naf-accent); }
.naf-price-currency {
    padding: 0 8px; background: color-mix(in srgb, var(--naf-border) 30%, transparent);
    font-size: 0.85rem; color: var(--naf-muted); border-right: 1px solid var(--naf-border);
    height: 36px; display: flex; align-items: center;
}
.naf-price-input {
    flex: 1; border: none; background: transparent; color: var(--naf-text);
    padding: 0 8px; height: 36px; font-size: 0.9rem; outline: none;
}
.naf-price-sep { color: var(--naf-muted); flex-shrink: 0; }

/* ── Toggle (stock / sale / featured) ───────────────────────────────────── */
.naf-toggle-indicator {
    display: inline-block; width: 34px; height: 20px;
    background: var(--naf-border); border-radius: 10px;
    position: relative; flex-shrink: 0;
    transition: background var(--naf-transition);
}
.naf-toggle-indicator::after {
    content: ''; position: absolute; left: 3px; top: 3px;
    width: 14px; height: 14px; background: #fff; border-radius: 50%;
    transition: left var(--naf-transition); box-shadow: 0 1px 3px rgba(0,0,0,.2);
}
.naf-term-item.is-active .naf-toggle-indicator { background: var(--naf-accent); }
.naf-term-item.is-active .naf-toggle-indicator::after { left: 17px; }

/* ── Rating stars ────────────────────────────────────────────────────────── */
.naf-stars { display: inline-flex; align-items: center; gap: 2px; }
.naf-star { width: 16px; height: 16px; fill: none; stroke: #d1d5db; stroke-width: 1.5; transition: fill var(--naf-transition), stroke var(--naf-transition); }
.naf-star--filled { fill: #f59e0b; stroke: #f59e0b; }
.naf-term-item.is-active .naf-star--filled { fill: var(--naf-accent); stroke: var(--naf-accent); }
.naf-rating-label { font-size: 0.82rem; color: var(--naf-muted); margin-left: 4px; }

/* ── Hierarchical children ───────────────────────────────────────────────── */
.naf-term-children {
    padding-left: 20px;
    border-left: 2px solid var(--naf-border);
    margin: 2px 0 2px 8px;
    list-style: none;
}
.naf-term-expand-btn {
    background: none; border: none; padding: 0 4px; cursor: pointer;
    color: var(--naf-muted); font-size: 10px; flex-shrink: 0; line-height: 1;
    transition: color var(--naf-transition);
}
.naf-term-expand-btn:hover { color: var(--naf-accent); }

/* ── Load more ───────────────────────────────────────────────────────────── */
.naf-load-more-btn, .naf-show-less-btn {
    background: none; border: none; padding: 6px 0; font-size: 0.85rem;
    color: var(--naf-accent); cursor: pointer; display: inline-flex;
    align-items: center; gap: 4px; margin-top: 4px; text-decoration: none;
}
.naf-load-more-btn:hover, .naf-show-less-btn:hover { text-decoration: underline; }

/* ── Active filter labels ─────────────────────────────────────────────────── */
.naf-active-labels { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }

.naf-active-label {
    display: inline-flex; align-items: center; gap: 5px; padding: 4px 10px;
    background: color-mix(in srgb, var(--naf-accent) 12%, transparent);
    border: 1px solid color-mix(in srgb, var(--naf-accent) 30%, transparent);
    border-radius: 100px; font-size: 0.82rem; color: var(--naf-accent);
    text-decoration: none; transition: background var(--naf-transition);
}
.naf-active-label:hover { background: color-mix(in srgb, var(--naf-accent) 20%, transparent); }
.naf-active-label__remove { font-size: 1rem; line-height: 1; opacity: 0.7; }

/* ── Reset button ────────────────────────────────────────────────────────── */
.naf-reset-button {
    display: inline-flex; align-items: center; gap: 6px; padding: 7px 14px;
    border: 1px solid var(--naf-border); border-radius: var(--naf-radius);
    font-size: 0.875rem; color: var(--naf-text); text-decoration: none;
    background: transparent; cursor: pointer; margin-bottom: 12px;
    transition: border-color var(--naf-transition), color var(--naf-transition);
}
.naf-reset-button:hover { border-color: var(--naf-accent); color: var(--naf-accent); }

/* ── Apply button ────────────────────────────────────────────────────────── */
.naf-apply-button {
    display: block; width: 100%; margin-top: 14px; padding: 10px;
    background: var(--naf-accent); color: #fff; border: none;
    border-radius: var(--naf-radius); font-size: 0.9375rem; font-weight: 600;
    cursor: pointer; transition: background var(--naf-transition);
}
.naf-apply-button:hover { background: var(--naf-accent-hover); }

/* ── AJAX loading ────────────────────────────────────────────────────────── */
.naf-loading-overlay {
    position: absolute; inset: 0; background: rgba(255,255,255,.7);
    display: flex; align-items: center; justify-content: center; z-index: 10;
}
.naf-spinner {
    width: 32px; height: 32px; border: 3px solid var(--naf-border);
    border-top-color: var(--naf-accent); border-radius: 50%;
    animation: naf-spin .7s linear infinite;
}
@keyframes naf-spin { to { transform: rotate(360deg); } }
.naf-products-loading { position: relative; min-height: 200px; }
.naf-products-loading::after {
    content: ''; position: absolute; inset: 0; background: rgba(255,255,255,.6); z-index: 5;
}

/* ── Mobile opener button ─────────────────────────────────────────────────── */
.naf-mobile-opener {
    display: none; align-items: center; gap: 8px; padding: 10px 16px;
    border: 1px solid var(--naf-border); border-radius: var(--naf-radius);
    background: var(--naf-bg); color: var(--naf-text); font-size: 0.9375rem;
    cursor: pointer; margin-bottom: 16px;
    transition: border-color var(--naf-transition);
}
.naf-mobile-opener:hover { border-color: var(--naf-accent); }
.naf-active-count {
    display: inline-flex; align-items: center; justify-content: center;
    min-width: 20px; height: 20px; padding: 0 5px;
    background: var(--naf-accent); color: #fff; border-radius: 100px;
    font-size: 0.75rem; font-weight: 600;
}
.naf-icon { width: 18px; height: 18px; flex-shrink: 0; }

/* ── Modal ───────────────────────────────────────────────────────────────── */
.naf-modal-overlay {
    display: none; position: fixed; inset: 0;
    background: rgba(0,0,0,.45); z-index: 999998;
    opacity: 0; transition: opacity .2s ease;
}
.naf-modal-overlay.is-open { display: block; opacity: 1; }

.naf-modal-panel {
    position: fixed; inset: 0 0 0 auto; width: min(360px, 92vw);
    background: var(--naf-bg); overflow-y: auto; z-index: 999999;
    padding: 16px; transform: translateX(100%);
    transition: transform .25s ease; box-shadow: -4px 0 24px rgba(0,0,0,.15);
}
.naf-modal-overlay.is-open .naf-modal-panel { transform: translateX(0); }

.naf-modal-header {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 16px; padding-bottom: 12px; border-bottom: 1px solid var(--naf-border);
}
.naf-modal-title { font-weight: 600; font-size: 1rem; }
.naf-modal-close { background: none; border: none; font-size: 1.4rem; cursor: pointer; color: var(--naf-muted); }
.naf-modal-close:hover { color: var(--naf-text); }

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
    .naf-mobile-opener { display: inline-flex; }
    .naf-filter-sidebar:not(.naf-in-modal) { display: none; }
}
@media (min-width: 769px) {
    .naf-modal-overlay { display: none !important; }
}

/* ── Sticky sidebar ──────────────────────────────────────────────────────── */
.naf-sticky {
    position: sticky; top: 20px;
    max-height: calc(100vh - 40px); overflow-y: auto;
    scrollbar-width: thin; scrollbar-color: var(--naf-border) transparent;
}
.naf-sticky::-webkit-scrollbar { width: 4px; }
.naf-sticky::-webkit-scrollbar-thumb { background: var(--naf-border); border-radius: 2px; }

/* ── Themes ──────────────────────────────────────────────────────────────── */
.naf-theme-minimal .naf-filter-section { border-bottom: none; }
.naf-theme-minimal .naf-filter-section__header { padding: 10px 0; }
.naf-theme-minimal .naf-term-link { padding: 3px 0; border-radius: 0; }
.naf-theme-minimal .naf-term-link:hover { background: transparent; text-decoration: underline; }

.naf-theme-dark {
    --naf-bg:     #1f2937;
    --naf-border: #374151;
    --naf-text:   #f9fafb;
    --naf-title:  #f9fafb;
    --naf-muted:  #9ca3af;
}

/* ── Elementor placeholder ───────────────────────────────────────────────── */
.naf-elementor-placeholder {
    padding: 16px; border: 2px dashed #adb5bd; border-radius: var(--naf-radius);
    text-align: center; color: #6c757d; font-size: 0.875rem; background: #f8f9fa;
}

/* ── Reduced motion ──────────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
    * { transition: none !important; animation: none !important; }
}