/* ═══════════════════════════════════════════════════════════════
   Violin Bestseller Bar  –  style.css
   ═══════════════════════════════════════════════════════════════ */

:root {
  --vbb-accent:       #c0392b;
  --vbb-accent-dark:  #96281b;
  --vbb-accent-light: #e74c3c;
  --vbb-bg:           #1a1a1a;
  --vbb-bg2:          #242424;
  --vbb-card-bg:      #2a2a2a;
  --vbb-text:         #f0ece4;
  --vbb-muted:        #999;
  --vbb-gold:         #d4a843;
  --vbb-radius:       10px;
  --vbb-h:            160px;       /* desktop bar height */
  --vbb-h-mob:        auto;
  --vbb-transition:   0.35s cubic-bezier(.4,0,.2,1);
  --vbb-shadow:       0 -6px 40px rgba(0,0,0,.55);
  --vbb-z:            99999;
}

/* ─── Bar container ─── */
.vbb-bar {
  position:   fixed;
  bottom:     0;
  left:       0;
  right:      0;
  z-index:    var(--vbb-z);
  background: var(--vbb-bg);
  box-shadow: var(--vbb-shadow);
  transform:  translateY(100%);
  transition: transform var(--vbb-transition), opacity var(--vbb-transition);
  opacity:    0;
  direction:  rtl;
  font-family: 'Vazirmatn', 'Tahoma', 'Segoe UI', sans-serif;
  border-top: 2px solid var(--vbb-accent);
}

/* animated accent top-line */
.vbb-bar::before {
  content:    '';
  position:   absolute;
  top:        -2px; left: 0;
  height:     2px;
  width:      0;
  background: linear-gradient(90deg, var(--vbb-accent), var(--vbb-gold), var(--vbb-accent-light));
  transition: width 1.2s ease .2s;
}
.vbb-bar.vbb-visible::before { width: 100%; }

.vbb-bar.vbb-visible {
  transform: translateY(0);
  opacity:   1;
}
.vbb-bar.vbb-hidden { pointer-events: none; }

/* ─── Inner layout ─── */
.vbb-inner {
  display:        flex;
  align-items:    center;
  gap:            12px;
  padding:        10px 16px 10px 16px;
  height:         var(--vbb-h);
  max-width:      1600px;
  margin:         0 auto;
  box-sizing:     border-box;
}

/* ─── Header / label ─── */
.vbb-header {
  display:        flex;
  flex-direction: column;
  align-items:    center;
  justify-content:center;
  flex-shrink:    0;
  gap:            6px;
  min-width:      80px;
}

.vbb-icon {
  font-size:   2rem;
  line-height: 1;
  filter:      drop-shadow(0 0 6px rgba(192,57,43,.6));
  animation:   vbb-sway 3s ease-in-out infinite;
}

@keyframes vbb-sway {
  0%,100% { transform: rotate(-5deg); }
  50%      { transform: rotate(5deg); }
}

.vbb-title {
  font-size:      .72rem;
  font-weight:    700;
  letter-spacing: .05em;
  color:          var(--vbb-accent-light);
  text-align:     center;
  text-transform: uppercase;
  white-space:    nowrap;
}

.vbb-close {
  background: transparent;
  border:     1px solid rgba(255,255,255,.15);
  color:      var(--vbb-muted);
  width:      26px; height: 26px;
  border-radius: 50%;
  cursor:     pointer;
  font-size:  .8rem;
  line-height:1;
  padding:    0;
  transition: color .2s, border-color .2s, transform .2s;
  display:    flex; align-items: center; justify-content: center;
}
.vbb-close:hover {
  color:        #fff;
  border-color: var(--vbb-accent);
  transform:    rotate(90deg);
}

/* ─── Slider wrapper ─── */
.vbb-track-wrapper {
  display:   flex;
  align-items:center;
  flex:      1;
  min-width: 0;
  gap:       6px;
  height:    100%;
}

.vbb-track-container {
  flex:       1;
  overflow:   hidden;
  height:     100%;
  position:   relative;
}

.vbb-track {
  display:    flex;
  align-items:stretch;
  gap:        10px;
  height:     100%;
  transition: transform .45s cubic-bezier(.4,0,.2,1);
  will-change:transform;
}

/* ─── Nav buttons ─── */
.vbb-nav {
  flex-shrink:    0;
  width:          34px; height: 34px;
  border-radius:  50%;
  background:     var(--vbb-bg2);
  border:         1px solid rgba(255,255,255,.1);
  color:          var(--vbb-text);
  font-size:      1.3rem;
  cursor:         pointer;
  transition:     background .2s, color .2s, border-color .2s, transform .15s;
  display:        flex; align-items:center; justify-content:center;
  line-height:    1;
  padding:        0;
}
.vbb-nav:hover {
  background:   var(--vbb-accent);
  border-color: var(--vbb-accent);
  color:        #fff;
  transform:    scale(1.1);
}
.vbb-nav:disabled {
  opacity:     .3;
  cursor:      not-allowed;
  pointer-events:none;
}

/* ─── Product card ─── */
.vbb-card {
  flex-shrink:    0;
  display:        flex;
  flex-direction: column;
  background:     var(--vbb-card-bg);
  border-radius:  var(--vbb-radius);
  overflow:       hidden;
  cursor:         pointer;
  text-decoration:none;
  color:          var(--vbb-text);
  border:         1px solid rgba(255,255,255,.06);
  transition:     transform .25s, box-shadow .25s, border-color .25s;
  position:       relative;
  width:          130px;    /* desktop card width */
  height:         calc(var(--vbb-h) - 24px);
}
.vbb-card:hover {
  transform:    translateY(-4px);
  box-shadow:   0 8px 24px rgba(0,0,0,.5);
  border-color: var(--vbb-accent);
}
.vbb-card:hover .vbb-card-cta { opacity: 1; transform: translateY(0); }

/* image */
.vbb-card-img {
  flex-shrink:  0;
  width:        100%;
  height:       72px;
  object-fit:   cover;
  display:      block;
  background:   var(--vbb-bg2);
}

/* info */
.vbb-card-info {
  padding:   6px 8px 4px;
  flex:      1;
  display:   flex;
  flex-direction:column;
  gap:       3px;
  overflow:  hidden;
}

.vbb-card-name {
  font-size:      .72rem;
  font-weight:    600;
  line-height:    1.3;
  overflow:       hidden;
  display:        -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  color:          var(--vbb-text);
}

.vbb-card-price {
  font-size:   .7rem;
  color:       var(--vbb-gold);
  font-weight: 700;
  margin-top:  auto;
}
.vbb-card-price del {
  color:       var(--vbb-muted);
  font-weight: 400;
  font-size:   .65rem;
  margin-right: 3px;
}

/* sale badge */
.vbb-badge-sale {
  position:     absolute;
  top:          6px;
  left:         6px;
  background:   var(--vbb-accent);
  color:        #fff;
  font-size:    .6rem;
  font-weight:  700;
  padding:      2px 5px;
  border-radius:4px;
  letter-spacing:.04em;
}

/* CTA overlay */
.vbb-card-cta {
  position:   absolute;
  bottom:     0; left: 0; right: 0;
  background: linear-gradient(transparent, rgba(0,0,0,.85));
  padding:    20px 8px 8px;
  opacity:    0;
  transform:  translateY(6px);
  transition: opacity .2s, transform .2s;
  text-align: center;
}
.vbb-card-cta span {
  display:       inline-block;
  background:    var(--vbb-accent);
  color:         #fff;
  font-size:     .65rem;
  font-weight:   700;
  padding:       4px 10px;
  border-radius: 20px;
  white-space:   nowrap;
}

/* out of stock */
.vbb-card.vbb-out-of-stock .vbb-card-img { filter: grayscale(.5) opacity(.7); }
.vbb-out-badge {
  position:   absolute;
  top:        6px;
  right:      6px;
  background: rgba(0,0,0,.7);
  color:      var(--vbb-muted);
  font-size:  .58rem;
  padding:    2px 5px;
  border-radius:4px;
}

/* ─── Stars ─── */
.vbb-stars {
  color:      var(--vbb-gold);
  font-size:  .6rem;
  letter-spacing: -.5px;
}

/* ─── Loading skeleton ─── */
.vbb-loading {
  display:     flex;
  align-items: center;
  gap:         10px;
  color:       var(--vbb-muted);
  font-size:   .85rem;
  padding:     0 16px;
}
.vbb-spinner {
  width:  22px; height: 22px;
  border: 2px solid rgba(255,255,255,.1);
  border-top-color: var(--vbb-accent);
  border-radius: 50%;
  animation: vbb-spin .7s linear infinite;
  flex-shrink:0;
}
@keyframes vbb-spin { to { transform: rotate(360deg); } }

/* ─── Dots ─── */
.vbb-dots {
  display:        flex;
  justify-content:center;
  gap:            5px;
  padding:        0 2px;
  flex-direction: column;
}
.vbb-dot {
  width:       6px; height: 6px;
  border-radius:50%;
  background:  rgba(255,255,255,.2);
  cursor:      pointer;
  transition:  background .2s, transform .2s;
  border:      none;
  padding:     0;
}
.vbb-dot.active {
  background: var(--vbb-accent);
  transform:  scale(1.4);
}

/* ─── Progress bar ─── */
.vbb-progress {
  position:   absolute;
  bottom:     0; left: 0;
  height:     2px;
  background: var(--vbb-accent);
  width:      0;
  opacity:    .7;
}

/* ══════════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════════ */
@media (max-width: 768px) {
  :root {
    --vbb-h: auto;
  }

  .vbb-inner {
    flex-direction: column;
    height:         auto;
    padding:        10px 10px 12px;
    gap:            8px;
  }

  .vbb-header {
    flex-direction: row;
    width:          100%;
    justify-content:space-between;
    min-width:      unset;
  }
  .vbb-header-left { display:flex; align-items:center; gap:6px; }
  .vbb-icon { font-size: 1.3rem; animation: none; }
  .vbb-title { font-size: .7rem; }

  .vbb-track-wrapper {
    width: 100%;
    height:auto;
    gap: 4px;
  }

  .vbb-card {
    width:  105px;
    height: 140px;
  }

  .vbb-card-img  { height: 62px; }
  .vbb-card-name { font-size: .66rem; }
  .vbb-card-price { font-size: .65rem; }

  .vbb-nav { width:28px; height:28px; font-size:1.1rem; flex-shrink:0; }

  .vbb-dots { flex-direction: row; padding: 2px 0 0; }
}

@media (max-width: 400px) {
  .vbb-card { width: 90px; height: 130px; }
  .vbb-card-img { height: 54px; }
}

/* ─── Admin colour swatch override (JS injects CSS variable) ─── */