.toolbar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 20px;
}

.toolbar input[type="text"],
.toolbar select {
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 14px;
  background: var(--surface);
}

.toolbar input[type="text"] {
  flex: 1;
  min-width: 160px;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 9px 16px;
  border-radius: var(--radius);
  font-size: 14px;
  cursor: pointer;
}

.btn-primary:hover { background: var(--primary-hover); }

.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 8px 14px;
  border-radius: var(--radius);
  font-size: 14px;
  cursor: pointer;
}

.book-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
}

.book-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  transition: border-color 0.15s, transform 0.15s;
}

.book-card:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
}

.book-cover {
  height: 80px;
  border-radius: 6px;
  background: linear-gradient(135deg, #2f6feb, #6f9cf9);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 28px;
  margin-bottom: 4px;
}

img.book-cover {
  width: 100%;
  height: 140px;
  object-fit: cover;
  object-position: top center;
  background: #eef1f5;
}

.book-title {
  font-weight: 600;
  font-size: 14px;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.book-meta {
  font-size: 12px;
  color: var(--text-muted);
}

.book-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 4px;
}

.book-actions button {
  font-size: 12px;
  color: var(--danger);
  background: none;
  border: none;
  cursor: pointer;
  padding: 2px 4px;
}

.empty-hint {
  color: var(--text-muted);
  padding: 40px 0;
  text-align: center;
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
}

.modal-overlay.hidden { display: none; }

.modal {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 24px;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.modal h2 {
  margin: 0 0 16px;
  font-size: 17px;
}

.modal label {
  display: block;
  font-size: 13px;
  color: var(--text-muted);
  margin: 12px 0 4px;
}

.modal input[type="text"],
.modal input[type="file"] {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 20px;
}

.upload-progress {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 8px;
  min-height: 16px;
}