.catalog-actions,
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.catalog-actions {
  margin-top: 0.9rem;
}

.filter-bar {
  margin-top: 0.6rem;
}

.filter-button {
  padding: 0.55rem 0.9rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.2);
  color: var(--text);
  font-family: var(--font-display);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
}

.filter-button.is-active {
  background: var(--accent-soft);
  border-color: var(--border-strong);
}

.books-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.book-card {
  display: grid;
  gap: 0.85rem;
}

.book-cover {
  aspect-ratio: 2 / 3;
  border-radius: calc(var(--radius-lg) - 4px);
  overflow: hidden;
  background: linear-gradient(135deg, rgba(42, 255, 138, 0.12), rgba(217, 106, 255, 0.1));
  box-shadow: 0 0 12px rgba(0, 0, 0, 0.9), 0 0 18px var(--green-2);
}

.book-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.book-cover-placeholder {
  width: 100%;
  height: 100%;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 0.35rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-family: var(--font-display);
  color: var(--text);
  text-shadow: 0 0 8px var(--green-2), 0 0 18px var(--green-3);
}

.book-cover-placeholder span {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
}

.book-cover-placeholder small {
  font-size: 0.72rem;
  color: var(--text-soft);
}

.book-body {
  display: grid;
  gap: 0.35rem;
}

.book-series {
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
}

.book-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1rem;
  line-height: 1.35;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.book-author,
.book-meta {
  color: var(--text-soft);
}

.book-description {
  margin: 0;
  color: var(--text-soft);
}

.book-progress {
  display: grid;
  gap: 0.35rem;
}

.book-progress__meta {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  color: var(--text-muted);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.book-progress__track {
  height: 0.5rem;
  border-radius: 999px;
  overflow: hidden;
  background: rgba(0, 0, 0, 0.65);
  border: 1px solid rgba(42, 255, 138, 0.16);
}

.book-progress__fill {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, rgba(42, 255, 138, 0.55), rgba(42, 255, 138, 0.92));
  box-shadow: 0 0 8px var(--green-hot-2), 0 0 16px var(--green-hot-3);
}

@media (max-width: 900px) {
  .books-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  .books-grid {
    grid-template-columns: 1fr;
  }
}