/* ===== Book Grid ===== */
.book-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 600px) {
  .book-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .book-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ===== Book Card ===== */
.book-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.2s, transform 0.2s;
}

.book-card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  transform: translateY(-2px);
}

.book-card__cover {
  width: 100%;
  height: 280px;
  object-fit: cover;
  background: var(--color-bg-alt);
}

.book-card__info {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.book-card__title {
  font-size: 1.15rem;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.book-card__description {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.5;
  margin-bottom: 1rem;
  flex: 1;
}

.book-card__buy-link {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-white);
  text-decoration: none;
  padding: 0.75rem 1.5rem;
  border-radius: 4px;
  text-align: center;
  font-size: 0.9rem;
  min-height: 44px;
  transition: background 0.2s;
  align-self: flex-start;
}

.book-card__buy-link:hover {
  background: var(--color-accent-light);
  color: var(--color-white);
}

/* ===== Empty State ===== */
.books-empty {
  text-align: center;
  color: var(--color-text-light);
  font-size: 1.1rem;
  padding: 3rem 1rem;
}

.books-empty__action {
  display: inline-block;
  background: var(--color-primary);
  color: var(--color-white);
  text-decoration: none;
  padding: 0.75rem 1.5rem;
  border-radius: 4px;
  font-size: 1rem;
  min-height: 44px;
  margin-top: 1rem;
  transition: background 0.2s;
}

.books-empty__action:hover {
  background: var(--color-primary-light);
  color: var(--color-white);
}