/* Class bucket — add-to-list + floating share bar */
.class-bucket-add-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  width: 100%;
  padding: 0.5rem 0.75rem;
  border-radius: 0.625rem;
  border: 1px solid rgba(161, 222, 86, 0.35);
  background: rgba(161, 222, 86, 0.08);
  color: #a1de56;
  font-size: 0.8125rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s, transform 0.15s;
  min-height: 2.75rem;
  position: relative;
  z-index: 2;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}
.class-bucket-actions {
  width: 100%;
  margin-bottom: 0.5rem;
}
.class-bucket-add-btn:hover {
  background: rgba(161, 222, 86, 0.16);
  border-color: rgba(161, 222, 86, 0.55);
}
.class-bucket-add-btn.is-in-bucket {
  background: rgba(161, 222, 86, 0.22);
  border-color: #a1de56;
  color: #fff;
}
.class-bucket-add-btn:active {
  transform: scale(0.97);
}
.class-bucket-row {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.5rem;
}
.class-bucket-row .book-btn,
.class-bucket-row .view-more-btn {
  flex: 1;
}

#classBucketBar {
  position: fixed;
  left: 50%;
  bottom: calc(1rem + env(safe-area-inset-bottom, 0px));
  transform: translateX(-50%) translateY(120%);
  z-index: 9999;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background: rgba(18, 18, 18, 0.96);
  border: 1px solid rgba(161, 222, 86, 0.35);
  border-radius: 1rem;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(12px);
  max-width: min(92vw, 28rem);
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}
#classBucketBar.is-visible {
  transform: translateX(-50%) translateY(0);
}
#classBucketBar .bucket-count {
  font-size: 0.875rem;
  font-weight: 600;
  color: #fff;
  white-space: nowrap;
}
#classBucketBar .bucket-actions {
  display: flex;
  gap: 0.5rem;
  flex: 1;
  justify-content: flex-end;
}
#classBucketBar button {
  border: none;
  border-radius: 0.625rem;
  padding: 0.5rem 0.875rem;
  font-size: 0.8125rem;
  font-weight: 600;
  cursor: pointer;
}
#classBucketBar .bucket-clear-btn {
  background: transparent;
  color: #9ca3af;
  border: 1px solid rgba(255, 255, 255, 0.12);
}
#classBucketBar .bucket-share-btn {
  background: #a1de56;
  color: #0a0a0a;
}
#classBucketBar .bucket-share-btn:disabled {
  opacity: 0.6;
  cursor: wait;
}
.class-bucket-toast {
  position: fixed;
  bottom: calc(5.5rem + env(safe-area-inset-bottom, 0px));
  left: 50%;
  transform: translateX(-50%) translateY(1rem);
  z-index: 10000;
  padding: 0.625rem 1rem;
  background: rgba(18, 18, 18, 0.95);
  border: 1px solid rgba(161, 222, 86, 0.4);
  border-radius: 0.75rem;
  color: #fff;
  font-size: 0.8125rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s, transform 0.25s;
}
.class-bucket-toast.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}