/* bestseller-rank.css — widget "Xếp hạng bán chạy" (trang chủ, realtime polling) */

.bs-live-dot {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #4CAF7D;
  margin-right: 6px;
  box-shadow: 0 0 0 0 rgba(76,175,125,.6);
  animation: bs-pulse 1.8s ease-out infinite;
  vertical-align: middle;
}

@keyframes bs-pulse {
  0%   { box-shadow: 0 0 0 0 rgba(76,175,125,.55); }
  70%  { box-shadow: 0 0 0 7px rgba(76,175,125,0); }
  100% { box-shadow: 0 0 0 0 rgba(76,175,125,0); }
}

.bs-rank-meta {
  font-size: 12px;
  color: var(--ink-500);
  white-space: nowrap;
}

.bs-rank-list {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: var(--ivory);
  border: 1px solid var(--mint-200);
  border-radius: var(--radius-lg);
  padding: 14px;
  transition: opacity .15s ease;
}

.bs-rank-list.is-refreshing { opacity: .55; }

.bs-rank-item {
  position: relative;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px 12px 10px 10px;
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
  border: 1px solid transparent;
  overflow: hidden;
  transition: background .18s ease, border-color .18s ease, transform .18s ease, box-shadow .18s ease;
}

.bs-rank-item:hover {
  background: var(--mint-50);
  border-color: var(--mint-200);
  transform: translateX(2px);
  box-shadow: 0 6px 16px -10px rgba(31,74,63,.35);
}

.bs-rank-item:hover .bs-rank-thumb img { transform: scale(1.1); }
.bs-rank-item:hover .bs-rank-name { color: var(--mint-900); }
.bs-rank-item:active { transform: translateX(2px) scale(.99); }

/* Entrance stagger — chỉ chạy khi JS gắn .bs-in-view (progressive enhancement,
   nếu JS tắt thì .bs-rank-item giữ trạng thái hiện sẵn ở CSS mặc định phía trên) */
.bs-rank-list.bs-anim-armed .bs-rank-item {
  opacity: 0;
  transform: translateY(10px);
}
.bs-rank-list.bs-anim-armed.bs-in-view .bs-rank-item {
  animation: bs-item-in .5s cubic-bezier(.22,.61,.36,1) forwards;
  animation-delay: calc(var(--i, 0) * 55ms);
}

@keyframes bs-item-in {
  to { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
  .bs-rank-list.bs-anim-armed .bs-rank-item { opacity: 1; transform: none; animation: none; }
  .bs-live-dot { animation: none; }
}

/* Flash highlight khi 1 sản phẩm thực sự đổi hạng / tăng lượt bán giữa 2 lần poll */
.bs-rank-item.bs-flash { animation: bs-flash-bg 1.6s ease; }
@keyframes bs-flash-bg {
  0%   { background: var(--mint-100); }
  100% { background: transparent; }
}

.bs-rank-num {
  flex: 0 0 30px;
  height: 30px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono, monospace);
  font-weight: 700;
  font-size: 13px;
  background: var(--mint-50);
  color: var(--ink-700);
  border: 1px solid var(--mint-200);
}

.bs-rank-num-1 { background: linear-gradient(135deg,#F6D77A,#D4A574); color: #4A3410; border-color: transparent; box-shadow: 0 0 0 3px rgba(212,165,116,.22); }
.bs-rank-num-2 { background: linear-gradient(135deg,#E4E7EA,#B8C0C8); color: #33393E; border-color: transparent; }
.bs-rank-num-3 { background: linear-gradient(135deg,#E4B694,#C98354); color: #3E2313; border-color: transparent; }

.bs-rank-thumb {
  position: relative;
  flex: 0 0 44px;
  width: 44px; height: 44px;
  border-radius: 10px;
  overflow: hidden;
  background: var(--mint-50);
  border: 1px solid var(--mint-200);
}

.bs-rank-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .35s ease; }

.bs-rank-crown {
  position: absolute;
  top: -6px; left: -6px;
  font-size: 15px;
  line-height: 1;
  filter: drop-shadow(0 1px 1px rgba(0,0,0,.25));
  transform: rotate(-18deg);
}

.bs-rank-info {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.bs-rank-name-row {
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
}

.bs-rank-name {
  font-size: 13.5px;
  font-weight: 500;
  color: var(--ink-900);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color .18s ease;
}

.bs-rank-hot {
  flex: 0 0 auto;
  font-size: 10.5px;
  font-weight: 700;
  color: #B8471F;
  background: #FBE6DB;
  border-radius: 999px;
  padding: 2px 7px;
  white-space: nowrap;
}

.bs-rank-delta {
  flex: 0 0 auto;
  font-family: var(--font-mono, monospace);
  font-size: 10.5px;
  font-weight: 700;
  border-radius: 999px;
  padding: 2px 6px;
  white-space: nowrap;
}
.bs-rank-delta-up   { color: #1F7A4D; background: #DFF2E6; }
.bs-rank-delta-down { color: #B4402B; background: #FBE3DE; }
.bs-rank-delta-new  { color: #2A5FA5; background: #E3EDFA; }

.bs-rank-bar-track {
  display: block;
  height: 5px;
  border-radius: 999px;
  background: var(--mint-100);
  overflow: hidden;
}

.bs-rank-bar-fill {
  display: block;
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--mint-500), var(--mint-700));
  transition: width .7s cubic-bezier(.22,.61,.36,1);
}

.bs-rank-stats {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
}

.bs-rank-price {
  font-size: 11.5px;
  font-weight: 600;
  color: var(--ink-500);
  white-space: nowrap;
}

.bs-rank-sold {
  font-family: var(--font-mono, monospace);
  font-size: 12px;
  font-weight: 600;
  color: var(--mint-900);
  background: var(--mint-50);
  border: 1px solid var(--mint-200);
  border-radius: 999px;
  padding: 5px 11px;
  white-space: nowrap;
}

.bs-rank-arrow {
  flex: 0 0 auto;
  font-size: 15px;
  color: var(--mint-500);
  opacity: .45;
  transform: translateX(0);
  transition: opacity .18s ease, transform .18s ease;
}

.bs-rank-item:hover .bs-rank-arrow { opacity: 1; transform: translateX(3px); color: var(--mint-900); }

@media (hover: none) {
  .bs-rank-arrow { display: none; }
}

@media (max-width: 640px) {
  .bs-rank-name { max-width: 120px; }
  .bs-rank-sold { font-size: 11px; padding: 4px 8px; }
  .bs-rank-price { font-size: 10.5px; }
  .bs-rank-item:hover { transform: none; }
}