/* ================================================================
   Smart Product Grid — spg-style.css  v2.0
   ================================================================ */

/* ── Variables ──────────────────────────────────────────────────── */
.spg-wrapper {
  --spg-accent:     #111111;
  --spg-accent-h:   #333333;
  --spg-accent-rgb: 17,17,17;
  --spg-bg:         #f8fafc;
  --spg-white:      #ffffff;
  --spg-border:     #e2e8f0;
  --spg-text:       #1e293b;
  --spg-muted:      #64748b;
  --spg-light:      #f1f5f9;
  --spg-radius:     12px;
  --spg-shadow:     0 1px 3px rgba(0,0,0,.08), 0 4px 16px rgba(0,0,0,.06);
  --spg-shadow-h:   0 4px 12px rgba(0,0,0,.12), 0 12px 32px rgba(0,0,0,.10);
  --spg-transition: .22s cubic-bezier(.4,0,.2,1);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 14px;
  color: var(--spg-text);
  background: var(--spg-bg);
  border-radius: var(--spg-radius);
  padding: 24px;
}

*, *::before, *::after { box-sizing: border-box; }

/* ── Layout ─────────────────────────────────────────────────────── */
.spg-wrapper {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 28px;
  align-items: start;
}
@media (max-width: 900px) {
  .spg-wrapper { grid-template-columns: 1fr; padding: 16px; }
}

/* ── Filter Sidebar ─────────────────────────────────────────────── */
.spg-filters {
  background: var(--spg-white);
  border: 1px solid var(--spg-border);
  border-radius: var(--spg-radius);
  padding: 20px;
  position: sticky;
  top: 24px;
  max-height: calc(100vh - 48px);
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--spg-border) transparent;
  transition: transform var(--spg-transition), box-shadow var(--spg-transition);
}
.spg-filters::-webkit-scrollbar { width: 4px; }
.spg-filters::-webkit-scrollbar-track { background: transparent; }
.spg-filters::-webkit-scrollbar-thumb { background: var(--spg-border); border-radius: 99px; }

.spg-filter-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--spg-border);
}
.spg-filter-title {
  display: flex;
  align-items: center;
  gap: 7px;
  font-weight: 700;
  font-size: 15px;
  letter-spacing: -.01em;
}
.spg-clear-all {
  font-size: 12px;
  color: var(--spg-accent);
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 6px;
  transition: background var(--spg-transition);
  font-weight: 500;
}
.spg-clear-all:hover { background: rgba(var(--spg-accent-rgb),.08); }

/* Filter Groups */
.spg-filter-group {
  margin-bottom: 22px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--spg-border);
}
.spg-filter-group:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }

.spg-filter-label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--spg-muted);
  margin-bottom: 12px;
}

/* Search */
.spg-search-wrap { position: relative; }
.spg-search-input {
  width: 100%;
  padding: 9px 36px 9px 12px;
  border: 1.5px solid var(--spg-border);
  border-radius: 8px;
  font-size: 13px;
  outline: none;
  transition: border-color var(--spg-transition), box-shadow var(--spg-transition);
  background: var(--spg-light);
  color: var(--spg-text);
}
.spg-search-input:focus {
  border-color: var(--spg-accent);
  box-shadow: 0 0 0 3px rgba(var(--spg-accent-rgb),.10);
  background: #fff;
}
.spg-search-icon {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--spg-muted);
  pointer-events: none;
}

/* ── Price Range Slider — CUSTOM DIV-BASED (no browser track) ───── */
.spg-price-display {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 700;
  font-size: 13px;
  margin-bottom: 16px;
  background: #f1f5f9;
  padding: 8px 12px;
  border-radius: 8px;
  color: #111111;
}

.spg-range-wrap {
  position: relative;
  height: 40px;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  padding: 0 10px;
  cursor: pointer;
}

/* Single grey track */
.spg-range-track {
  position: absolute;
  left: 10px;
  right: 10px;
  top: 50%;
  height: 4px;
  transform: translateY(-50%);
  background: #e2e8f0;
  border-radius: 99px;
  z-index: 0;
}

/* Black fill between thumbs */
.spg-range-fill {
  position: absolute;
  top: 0;
  bottom: 0;
  background: #111111;
  border-radius: 99px;
  z-index: 1;
}

/* Hide native inputs — JS handles via custom thumbs */
.spg-range {
  display: none !important;
}

/* Custom draggable circles */
.spg-thumb {
  position: absolute;
  top: 50%;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #ffffff;
  border: 2.5px solid #111111;
  box-shadow: 0 1px 8px rgba(0,0,0,0.22);
  transform: translate(-50%, -50%);
  cursor: grab;
  z-index: 3;
  transition: box-shadow 0.15s ease, transform 0.1s ease;
  touch-action: none;
  user-select: none;
}
.spg-thumb:hover {
  box-shadow: 0 2px 14px rgba(0,0,0,0.32);
  transform: translate(-50%, -50%) scale(1.18);
}
.spg-thumb.dragging {
  cursor: grabbing;
  transform: translate(-50%, -50%) scale(1.12);
  box-shadow: 0 3px 18px rgba(0,0,0,0.38);
}

.spg-price-inputs {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 2px;
}
.spg-num-input {
  flex: 1;
  padding: 7px 10px;
  border: 1.5px solid #e2e8f0;
  border-radius: 7px;
  font-size: 13px;
  outline: none;
  text-align: center;
  background: #f1f5f9;
  color: #1e293b;
  transition: border-color 0.2s;
}
.spg-num-input:focus { border-color: #111111; background: #fff; }

/* Select */
.spg-select {
  width: 100%;
  padding: 9px 12px;
  border: 1.5px solid var(--spg-border);
  border-radius: 8px;
  font-size: 13px;
  outline: none;
  background: var(--spg-light);
  color: var(--spg-text);
  cursor: pointer;
  transition: border-color var(--spg-transition);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 30px;
}
.spg-select:focus { border-color: var(--spg-accent); background-color: #fff; }

/* Checklist */
.spg-checklist { display: flex; flex-direction: column; gap: 6px; max-height: 220px; overflow-y: auto; }
.spg-check-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  border-radius: 7px;
  cursor: pointer;
  transition: background var(--spg-transition);
  font-size: 13px;
  user-select: none;
}
.spg-check-item:hover { background: var(--spg-light); }
.spg-check-item input[type="checkbox"] {
  width: 15px; height: 15px;
  accent-color: var(--spg-accent);
  cursor: pointer;
  flex-shrink: 0;
}
.spg-check-item .spg-check-name { flex: 1; }
.spg-check-item .spg-check-count {
  font-size: 11px;
  color: var(--spg-muted);
  background: var(--spg-light);
  padding: 1px 6px;
  border-radius: 99px;
}
.spg-has-children { padding-left: 0; }
.spg-children-list { padding-left: 18px; margin-top: 4px; }
.spg-parent-toggle {
  cursor: pointer;
  font-size: 11px;
  color: var(--spg-muted);
  width: 14px;
  text-align: center;
  flex-shrink: 0;
  transition: transform var(--spg-transition);
}
.spg-parent-toggle.open { transform: rotate(90deg); }

/* Tag Cloud */
.spg-tag-cloud { display: flex; flex-wrap: wrap; gap: 6px; max-height: 140px; overflow-y: auto; }
.spg-tag-pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border-radius: 99px;
  border: 1.5px solid var(--spg-border);
  font-size: 12px;
  cursor: pointer;
  transition: all var(--spg-transition);
  background: var(--spg-light);
  color: var(--spg-text);
  user-select: none;
}
.spg-tag-pill:hover { border-color: #111111; color: #111111; background: rgba(17,17,17,.06); }
.spg-tag-pill.active { background: #111111; color: #fff; border-color: #111111; }

/* Quick Toggles */
.spg-toggles { display: flex; flex-wrap: wrap; gap: 7px; }
.spg-toggle-label { cursor: pointer; user-select: none; }
.spg-toggle-check { display: none; }
.spg-toggle-pill {
  display: inline-block;
  padding: 5px 12px;
  border-radius: 99px;
  border: 1.5px solid var(--spg-border);
  font-size: 12px;
  font-weight: 500;
  transition: all var(--spg-transition);
  background: var(--spg-light);
}
.spg-toggle-check:checked + .spg-toggle-pill {
  background: #111111;
  color: #fff;
  border-color: #111111;
}

/* ── Main Content ────────────────────────────────────────────────── */
.spg-main { min-width: 0; }

/* Toolbar */
.spg-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
  gap: 12px;
  flex-wrap: wrap;
}
.spg-results-count { font-size: 13px; color: var(--spg-muted); }
.spg-results-count #spg-count-num { font-weight: 700; color: var(--spg-text); }

.spg-toolbar-right { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }

.spg-active-filters { display: flex; flex-wrap: wrap; gap: 5px; }
.spg-filter-tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: rgba(17,17,17,.08);
  color: #111111;
  border-radius: 99px;
  padding: 3px 10px;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--spg-transition);
}
.spg-filter-tag:hover { background: rgba(17,17,17,.16); }
.spg-filter-tag svg { pointer-events: none; }

.spg-column-toggle { display: flex; gap: 4px; }
.spg-col-btn {
  width: 32px; height: 32px;
  border: 1.5px solid var(--spg-border);
  border-radius: 7px;
  background: var(--spg-light);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--spg-transition);
  color: var(--spg-muted);
}
.spg-col-btn:hover, .spg-col-btn.active {
  border-color: #111111;
  background: rgba(17,17,17,.08);
  color: #111111;
}

.spg-filter-toggle-btn {
  display: none;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border: 1.5px solid var(--spg-border);
  border-radius: 8px;
  background: var(--spg-white);
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  transition: all var(--spg-transition);
}
.spg-filter-toggle-btn:hover { border-color: #111111; color: #111111; }
@media (max-width: 900px) { .spg-filter-toggle-btn { display: flex; } }

/* ── Product Grid ────────────────────────────────────────────────── */
.spg-grid {
  display: grid;
  gap: 20px;
  position: relative;
  min-height: 200px;
}
.spg-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.spg-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.spg-grid.cols-1 { grid-template-columns: 1fr; }

@media (max-width: 1100px) {
  .spg-grid.cols-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .spg-grid.cols-3,
  .spg-grid.cols-2 { grid-template-columns: repeat(2, 1fr); gap: 12px; }
}
@media (max-width: 400px) {
  .spg-grid.cols-3,
  .spg-grid.cols-2,
  .spg-grid.cols-1 { grid-template-columns: 1fr; }
}

/* ── Product Card ────────────────────────────────────────────────── */
.spg-card {
  background: var(--spg-white);
  border: 1px solid var(--spg-border);
  border-radius: var(--spg-radius);
  overflow: hidden;
  position: relative;
  transition: transform var(--spg-transition), box-shadow var(--spg-transition), border-color var(--spg-transition);
  animation: spgFadeIn .35s ease both;
  display: flex;
  flex-direction: column;
}
.spg-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--spg-shadow-h);
  border-color: rgba(17,17,17,.20);
}

@keyframes spgFadeIn {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Image */
.spg-card-img-wrap {
  position: relative;
  overflow: hidden;
  background: var(--spg-light);
  padding-bottom: 100%;
}
.spg-card-img-wrap img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .45s cubic-bezier(.4,0,.2,1);
}
.spg-card:hover .spg-card-img-wrap img { transform: scale(1.06); }

/* Badge */
.spg-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  padding: 3px 9px;
  border-radius: 99px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .04em;
  z-index: 2;
}
.spg-badge-sale { background: #ef4444; color: #fff; }
.spg-badge-oos  { background: #94a3b8; color: #fff; }

/* Quick Actions */
.spg-card-actions {
  position: absolute;
  top: 10px;
  right: 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  opacity: 0;
  transform: translateX(8px);
  transition: opacity var(--spg-transition), transform var(--spg-transition);
  z-index: 2;
}
.spg-card:hover .spg-card-actions { opacity: 1; transform: translateX(0); }
.spg-action-btn {
  width: 34px; height: 34px;
  border-radius: 50%;
  background: var(--spg-white);
  border: 1px solid var(--spg-border);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: all var(--spg-transition);
  box-shadow: var(--spg-shadow);
  text-decoration: none;
  color: var(--spg-text);
}
.spg-action-btn:hover { background: #111111; color: #fff; border-color: #111111; }

/* Body */
.spg-card-body {
  padding: 14px;
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: 6px;
}
.spg-card-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--spg-text);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-decoration: none;
  transition: color var(--spg-transition);
}
.spg-card-title:hover { color: #111111; }

/* Rating */
.spg-rating {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  color: var(--spg-muted);
}
.spg-stars { color: #f59e0b; letter-spacing: 1px; font-size: 12px; }
.spg-rating-count { font-size: 11px; }

/* Price */
.spg-price {
  font-size: 15px;
  font-weight: 700;
  color: #111111;
  margin-top: auto;
}
.spg-price ins { text-decoration: none; }
.spg-price del { color: var(--spg-muted); font-weight: 400; font-size: 12px; margin-right: 4px; }

/* Add to Cart */
.spg-atc-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 100%;
  padding: 10px;
  border: none;
  border-radius: 8px;
  background: #111111;
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: background var(--spg-transition), transform var(--spg-transition), box-shadow var(--spg-transition);
  margin-top: auto;
}
.spg-atc-btn:hover {
  background: #333333;
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(17,17,17,.30);
  color: #fff;
  text-decoration: none;
}
.spg-atc-btn:active { transform: scale(.97); }
.spg-atc-btn.added { background: #10b981; }

/* ── Loading ─────────────────────────────────────────────────────── */
.spg-loading-overlay {
  position: absolute;
  inset: 0;
  background: rgba(248,250,252,.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  border-radius: var(--spg-radius);
  backdrop-filter: blur(2px);
  transition: opacity var(--spg-transition);
}
.spg-loading-overlay.hidden { opacity: 0; pointer-events: none; }
.spg-spinner {
  width: 40px; height: 40px;
  border: 3px solid var(--spg-border);
  border-top-color: #111111;
  border-radius: 50%;
  animation: spgSpin .8s linear infinite;
}
@keyframes spgSpin { to { transform: rotate(360deg); } }

/* No Results */
.spg-no-results {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  color: var(--spg-muted);
  gap: 12px;
  text-align: center;
}
.spg-no-results p { font-size: 15px; margin: 0; }
.spg-clear-all-btn {
  padding: 9px 20px;
  border: 1.5px solid #111111;
  border-radius: 8px;
  color: #111111;
  background: none;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  transition: all var(--spg-transition);
}
.spg-clear-all-btn:hover { background: #111111; color: #fff; }

/* Load More */
.spg-load-more-wrap {
  text-align: center;
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.spg-load-more-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 36px;
  background: var(--spg-white);
  border: 2px solid #111111;
  color: #111111;
  border-radius: 99px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--spg-transition);
  letter-spacing: .01em;
  position: relative;
  overflow: hidden;
}
.spg-load-more-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: #111111;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--spg-transition);
  z-index: 0;
}
.spg-load-more-btn:hover::before { transform: scaleX(1); }
.spg-load-more-btn:hover { color: #fff; }
.spg-btn-text, .spg-btn-spinner { position: relative; z-index: 1; }
.spg-btn-spinner {
  width: 16px; height: 16px;
  border: 2px solid rgba(17,17,17,.25);
  border-top-color: currentColor;
  border-radius: 50%;
  animation: spgSpin .6s linear infinite;
}
.spg-pagination-info { font-size: 12px; color: var(--spg-muted); margin: 0; }

/* ── Mobile Filter Overlay ───────────────────────────────────────── */
@media (max-width: 900px) {
  .spg-filters {
    position: fixed;
    top: 0; left: 0;
    width: min(320px, 90vw);
    height: 100vh;
    max-height: 100vh;
    z-index: 9999;
    border-radius: 0;
    transform: translateX(-110%);
    box-shadow: 8px 0 32px rgba(0,0,0,.15);
  }
  .spg-filters.open { transform: translateX(0); }
  .spg-filter-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.4);
    z-index: 9998;
    backdrop-filter: blur(2px);
  }
  .spg-filter-overlay.visible { display: block; }
}

/* ── Attribute Section ───────────────────────────────────────────── */
.spg-attr-section {
  margin-bottom: 22px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--spg-border);
}
.spg-attr-section:last-child { border-bottom: none; }