.catalog-intro {
    text-align: center;
    margin-bottom: 1.8rem;
}

.catalog-intro h1 {
    color: var(--accent-color);
    font-size: var(--text-2xl);
    line-height: 1.35;
    margin-bottom: 0.55rem;
}

.catalog-intro p {
    color: var(--text-muted);
    font-size: var(--text-sm);
    line-height: 1.8;
}

.catalog-tools {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 0.7rem;
    margin-bottom: 0.9rem;
}

.catalog-tools .tool-group {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.catalog-tools label {
    font-size: var(--text-xs);
    color: var(--text-muted);
}

.search-intro-text {
    inline-size: 100%;
    font-weight: 700;
    font-size: var(--text-xs) !important;
}

.catalog-search-input,
.catalog-select {
    width: 100%;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-elevated);
    color: var(--text-color);
    padding: 0.65rem 0.75rem;
    font-family: var(--font-ui);
    font-size: var(--text-sm);
}

.catalog-select-wrap {
    position: relative;
}

.catalog-select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: none;
    padding-inline-end: 2.2rem;
}

.catalog-select::-ms-expand {
    display: none;
}

.catalog-select-icon,
.catalog-select-wrap .lucide-arrow-down-wide-narrow {
    position: absolute;
    inset-block-start: 50%;
    inset-inline-end: 0.72rem;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    color: var(--text-muted);
    stroke-width: 1.6;
    pointer-events: none;
}

.books-page .books-text-ads {
    margin-bottom: 0.9rem;
    padding: 0.65rem 0.8rem;
    border: 1px dashed var(--border-color);
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.015);
}

.books-page .books-text-ads-title {
    margin: 0 0 0.25rem;
    color: var(--text-muted);
    font-size: var(--text-xs);
    font-weight: 700;
}

.books-page .books-text-ads-item {
    margin: 0;
    color: var(--text-muted);
    font-size: var(--text-xs);
    line-height: 1.8;
}

:is(.books-page, .category-books-page) .book-list {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--sidebar-bg);
    overflow: hidden;
    gap: 0;
}

:is(.books-page, .category-books-page) .book-list-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 0.82rem 0.9rem;
    border-bottom: 1px solid var(--border-color);
}

:is(.books-page, .category-books-page) .book-list-item:last-child {
    border-bottom: 0;
}

:is(.books-page, .category-books-page) .book-list-item:hover {
    background: var(--hover-color);
}

:is(.books-page, .category-books-page) .book-card {
    border: 0;
    background: transparent;
    border-radius: 0;
    padding: 0;
    min-width: 0;
    gap: 0;
}

:is(.books-page, .category-books-page) .book-link {
    color: var(--text-color);
    font-size: var(--text-sm);
    line-height: 1.6;
}

:is(.books-page, .category-books-page) .book-list-item:hover .book-link {
    color: var(--accent-color);
}

.book-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0.9rem;
}

.book-list-item {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: start;
    gap: 0.7rem;
}

.book-card {
    border: 1px solid var(--border-color);
    background: var(--sidebar-bg);
    border-radius: var(--radius-md);
    padding: 0.9rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.book-link {
    display: inline-block;
    font-size: var(--text-md);
    line-height: 1.75;
    color: #f3f4f7;
}

.book-link:hover {
    color: var(--accent-color);
}

.book-list-loading,
.book-list-empty,
.book-list-error {
    background-color: var(--sidebar-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.85rem 1rem;
    color: var(--text-muted);
    font-size: var(--text-sm);
    line-height: 1.75;
}

.book-list-error {
    color: var(--danger-color);
}

.search-result-location {
    color: var(--text-muted);
    font-size: var(--text-xs);
}

.search-result-card {
    cursor: pointer;
}

.search-result-card:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

.search-result-snippet {
    color: var(--text-color);
    font-size: var(--text-sm);
    line-height: 1.9;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.55rem 0.65rem;
}

.search-result-snippet .highlight {
    background-color: var(--accent-weak);
    color: var(--accent-color);
    border-radius: 4px;
    padding: 0 0.1rem;
}

.search-load-controls {
    display: flex;
    justify-content: center;
    margin-top: 1rem;
}

.search-load-controls[hidden] {
    display: none;
}

.search-load-more {
    border: 1px solid var(--border-color);
    border-radius: 999px;
    background: var(--bg-elevated);
    color: var(--text-color);
    font-family: var(--font-ui);
    font-size: var(--text-sm);
    padding: 0.5rem 1.1rem;
    cursor: pointer;
    transition: border-color 0.2s ease, color 0.2s ease, opacity 0.2s ease;
}

.search-load-more:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.search-load-more:disabled {
    opacity: 0.5;
    cursor: wait;
}

.search-load-sentinel {
    width: 100%;
    height: 1px;
}

@media (max-width: 900px) {
    .catalog-tools {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .book-list-item {
        grid-template-columns: minmax(0, 1fr);
    }

    .book-card {
        padding: 0.75rem 0.8rem;
    }
}