/* Arhipelag catalog: filters, lists, pagination and author catalog. */
body.catalog-filter-open {
overflow: hidden;
}.catalog-section {
padding: 80px 0 110px;
}.catalog-content {
position: relative;
}.catalog-content.is-loading .catalog-results {
opacity: .55;
pointer-events: none;
}.catalog-filter-toggle {
display: none;
}.catalog-layout {
display: grid; grid-template-columns: 280px minmax(0, 1fr); gap: 56px; align-items: start;
}.catalog-sidebar {
position: sticky; top: calc(var(--header-height) + 26px);
}.catalog-filter-panel {
border-top: 3px solid var(--ar-ink);
}.catalog-filter-header {
display: flex; justify-content: space-between; align-items: start; padding: 24px 0; border-bottom: 1px solid var(--ar-line);
}.catalog-filter-header h2 {
margin: 0; font-size: 1.8rem;
}.catalog-filter-header button {
display: none; border: 0; background: none; font-size: 1.8rem;
}.catalog-search {
display: block; padding: 24px 0; border-bottom: 1px solid var(--ar-line); color: var(--ar-muted); font-size: .72rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase;
}.catalog-search > div {
display: flex; align-items: center; gap: 8px; margin-top: 9px; padding: 0 10px; background: var(--ar-white); border: 1px solid var(--ar-line);
}.catalog-search svg {
width: 18px;
}.catalog-search input {
width: 100%; height: 44px; border: 0; outline: 0; background: transparent; text-transform: none;
}.catalog-special-filter {
display: flex; gap: 12px; padding: 20px 0; border-bottom: 1px solid var(--ar-line); cursor: pointer;
}.catalog-special-filter input {
accent-color: var(--ar-cyan-deep);
}.catalog-special-filter span {
display: flex; flex-direction: column;
}.catalog-special-filter small {
color: var(--ar-muted);
}.catalog-filter-group {
border-bottom: 1px solid var(--ar-line);
}.catalog-filter-group summary {
display: flex; justify-content: space-between; padding: 21px 0; font-weight: 750; cursor: pointer;
}.catalog-filter-group summary::marker {
display: none;
}.catalog-filter-group summary b {
color: var(--ar-muted); font-size: .72rem;
}.catalog-filter-search {
width: 100%; height: 38px; margin-bottom: 10px; padding: 0 10px; border: 1px solid var(--ar-line); background: var(--ar-white);
}.catalog-filter-options {
max-height: 235px; overflow: auto; padding-bottom: 14px; scrollbar-width: thin;
}.catalog-checkbox {
display: grid; grid-template-columns: 18px 1fr auto; align-items: center; gap: 9px; padding: 7px 0; cursor: pointer; font-size: .84rem;
}.catalog-checkbox input {
accent-color: var(--ar-cyan-deep);
}.catalog-checkbox b {
color: var(--ar-muted); font-size: .7rem;
}.catalog-filter-footer {
display: flex; flex-direction: column; gap: 12px; padding-top: 22px;
}.catalog-filter-footer a,
.catalog-reset {
color: var(--ar-muted); font-size: .76rem; text-decoration: underline;
}.catalog-results-heading {
display: flex; justify-content: space-between; align-items: end; gap: 30px; margin-bottom: 28px; padding-bottom: 24px; border-bottom: 1px solid var(--ar-line);
}.catalog-results-heading h2 {
margin: 0; font-size: clamp(2rem, 3vw, 3.4rem);
}.catalog-sort-dropdown {
position: relative; min-width: 220px;
}.catalog-sort-dropdown > button {
width: 100%; display: grid; grid-template-columns: auto 1fr auto; gap: 8px; align-items: center; padding: 10px 0; border: 0; border-bottom: 1px solid var(--ar-ink); background: transparent; text-align: left; cursor: pointer;
}.catalog-sort-dropdown > button span {
color: var(--ar-muted); font-size: .68rem; text-transform: uppercase;
}.catalog-sort-dropdown > button strong {
text-align: right; font-size: .8rem;
}.catalog-sort-menu {
position: absolute; z-index: 30; top: calc(100% + 6px); right: 0; width: 250px; padding: 8px; background: var(--ar-white); border: 1px solid var(--ar-line); box-shadow: var(--shadow-soft);
}.catalog-sort-option {
width: 100%; padding: 10px; border: 0; background: transparent; text-align: left; cursor: pointer;
}.catalog-sort-option:hover,
.catalog-sort-option.is-selected {
background: var(--ar-cyan-soft);
}.catalog-active-filters {
display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 28px;
}.catalog-active-filters button {
padding: 7px 10px; border: 1px solid var(--ar-line); background: var(--ar-white); cursor: pointer; font-size: .75rem;
}.catalog-active-filters span {
margin-left: 6px; color: var(--ar-cyan-deep);
}.catalog-book-grid {
grid-template-columns: repeat(3, minmax(0, 1fr));
}.books-pagination {
display: flex; justify-content: center; gap: 8px; margin-top: 58px;
}.books-pagination a {
display: grid; place-items: center; min-width: 42px; height: 42px; border: 1px solid var(--ar-line); background: var(--ar-white); font-size: .8rem;
}.books-pagination a:hover,
.books-pagination a.is-current,
.books-pagination a.active {
background: var(--ar-ink); border-color: var(--ar-ink); color: var(--ar-white);
}.article-list-section {
padding: 72px 0 110px;
}.article-results-heading {
display: flex; justify-content: space-between; margin-bottom: 35px; padding-bottom: 18px; border-bottom: 1px solid var(--ar-line); color: var(--ar-muted); font-size: .78rem; text-transform: uppercase;
}.authors-catalog-layout {
grid-template-columns: 260px minmax(0, 1fr);
}.authors-grid {
display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 46px 28px;
}.author-card {
border-top: 3px solid var(--ar-ink);
}.author-card-portrait {
display: block; height: 280px; background: var(--ar-paper-2); overflow: hidden;
}.author-card-portrait img {
width: 100%; height: 100%; object-fit: cover; object-position: top; filter: saturate(.72); transition: filter .3s ease, transform .3s ease;
}.author-card:hover img {
filter: saturate(1); transform: scale(1.02);
}.author-card-copy {
padding: 20px 0;
}.author-card h3 {
margin: 0 0 10px; font-size: 2rem;
}.author-card p {
color: var(--ar-muted); font-size: .78rem;
}@media (max-width: 1120px) {.catalog-layout {
grid-template-columns: 245px 1fr; gap: 36px;
}}@media (max-width: 900px) {.catalog-filter-toggle {
display: flex; justify-content: space-between; align-items: center; width: 100%; margin-bottom: 24px; padding: 14px 16px; border: 1px solid var(--ar-ink); background: var(--ar-white);
}.catalog-filter-toggle b {
display: grid; place-items: center; min-width: 24px; height: 24px; border-radius: 50%; background: var(--ar-cyan);
}.catalog-layout {
display: block;
}.catalog-sidebar {
position: fixed; z-index: 1200; inset: 0 0 0 auto; width: min(390px, 100%); padding: 24px; overflow: auto; background: var(--ar-paper); transform: translateX(105%); transition: transform .25s ease;
}.catalog-sidebar.is-open {
transform: translateX(0);
}.catalog-filter-backdrop {
position: fixed; z-index: 1190; inset: 0; background: rgba(0,0,0,.45);
}.catalog-filter-header button {
display: block;
}.catalog-results-heading {
align-items: start;
}.catalog-book-grid {
grid-template-columns: repeat(2, minmax(0, 1fr));
}}@media (max-width: 620px) {.catalog-results-heading {
flex-direction: column; align-items: stretch;
}.catalog-sort-dropdown {
width: 100%;
}}.catalog-section { padding-top: 66px; }.catalog-filter-panel {
    max-height: calc(100vh - var(--header-height) - 70px);
    overflow-y: auto;
    padding-right: 10px;
    scrollbar-width: thin;
    scrollbar-color: #687277 #e0e4e6;
}.catalog-filter-panel::-webkit-scrollbar { width: 9px; }.catalog-filter-panel::-webkit-scrollbar-track { background: #e0e4e6; }.catalog-filter-panel::-webkit-scrollbar-thumb { background: #687277; border: 2px solid #e0e4e6; }.catalog-filter-scroll-hint {
    position: sticky;
    bottom: 0;
    z-index: 3;
    display: grid;
    gap: 5px;
    margin: 18px -10px 0 0;
    padding: 13px 10px 8px 0;
    background: linear-gradient(transparent, var(--ar-paper) 24%);
    color: #3f474b;
    font-size: .7rem;
    font-weight: 750;
}.catalog-filter-scroll-hint > span { height: 3px; overflow: hidden; background: #c7cdd0; }.catalog-filter-scroll-hint i { display: block; width: 100%; height: 100%; background: #006f91; transform: scaleX(0); transform-origin: left; }.catalog-filter-toast {
    position: fixed;
    z-index: 1500;
    right: 16px;
    bottom: 18px;
    max-width: min(360px, calc(100vw - 32px));
    padding: 14px 18px;
    background: #172024;
    color: #fff;
    box-shadow: 0 15px 42px rgba(0,0,0,.25);
    opacity: 0;
    transform: translateY(14px);
    transition: opacity .2s ease, transform .2s ease;
}.catalog-filter-toast.is-visible { opacity: 1; transform: translateY(0); }.catalog-search,
.catalog-filter-search,
.catalog-sort-dropdown,
.catalog-filter-toggle { font-family: var(--font-ui); }.catalog-search input,
.catalog-filter-search { color: #171c1f; font-size: 1rem; }.catalog-search input::placeholder,
.catalog-filter-search::placeholder { color: #687075; opacity: 1; }.catalog-checkbox { min-height: 44px; }.catalog-checkbox b,
.catalog-filter-group summary b,
.catalog-sort-dropdown > button span { color: #50585d; }.catalog-filter-header h2,
.catalog-results-heading h2 { font-size: clamp(1.7rem, 2.6vw, 2.8rem); }.catalog-sort-dropdown > button,
.catalog-sort-option,
.catalog-active-filters button { min-height: 44px; }.catalog-author-submit { width: 100%; margin-top: 24px; }.author-card {
    display: flex;
    min-width: 0;
    flex-direction: column;
    border-top: 3px solid #171c1f;
    background: rgba(255,255,255,.62);
}.author-card-portrait {
    position: relative;
    display: grid;
    aspect-ratio: 4 / 5;
    place-items: center;
    overflow: hidden;
    background: #e3e6e7;
}.author-card-portrait img { width: 100%; height: 100%; object-fit: cover; object-position: top center; }.author-image-placeholder { display: grid; width: 100%; height: 100%; place-items: center; background: #c9eef6; color: #064f66; font-family: var(--font-editorial); font-size: clamp(3rem, 8vw, 6rem); }.author-card-copy { display: flex; min-height: 230px; flex: 1; flex-direction: column; padding: 24px; }.author-card-copy .section-kicker { margin-bottom: 12px; }.author-card-copy h3 { margin: 0 0 14px; font-size: clamp(1.45rem, 2.2vw, 2rem); }.author-card-copy p { color: #4b5357; }.author-card-copy .text-link { margin-top: auto; align-self: flex-start; }.books-pagination { align-items: center; flex-wrap: wrap; }.books-pagination a { min-width: 46px; height: 46px; font-weight: 750; }.books-pagination .pagination-arrow { font-size: 1.15rem; }.books-pagination .is-disabled { pointer-events: none; opacity: .42; background: transparent; }.pagination-ellipsis { display: grid; min-width: 30px; height: 46px; place-items: center; color: #4c5559; }@media (max-width: 900px) {.catalog-filter-panel { max-height: 100dvh; padding: 24px 22px 96px; }.catalog-filter-scroll-hint { margin-right: -22px; padding-right: 22px; background: linear-gradient(transparent, #fff 24%); }.catalog-filter-toggle { min-height: 50px; font-size: .9rem; }}@media (max-width: 620px) {.catalog-results-heading { align-items: stretch; }.catalog-sort-dropdown { width: 100%; min-width: 0; }.catalog-sort-dropdown > button { padding: 12px 0; }.catalog-filter-toggle { font-family: var(--font-ui); font-size: .92rem; letter-spacing: .02em; }.catalog-filter-header h2 { font-size: 1.75rem; }.catalog-filter-header button { width: 46px; height: 46px; }.catalog-book-grid,
    .authors-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 34px 14px; }.author-card-copy { min-height: 205px; padding: 18px 14px; }.author-card-copy .section-kicker { font-size: .6rem; }.author-card-copy h3 { font-size: 1.35rem; }.author-card-copy p { font-size: .8rem; }.author-card-copy .text-link { font-size: .66rem; }.books-pagination { gap: 6px; margin-top: 42px; }.books-pagination a { min-width: 44px; height: 44px; }}@media (max-width: 390px) {.catalog-book-grid,
    .authors-grid { grid-template-columns: 1fr; }}.catalog-filter-scroll-hint[hidden],
.catalog-filter-toast[hidden] { display: none !important; }.catalog-filter-scroll-hint small { color: #333b3f; }.catalog-sort-option,
.catalog-filter-toggle,
.catalog-filter-header button,
.books-pagination a { min-width: 44px; min-height: 44px; }.catalog-sort-option.is-selected,
.catalog-sort-option:hover { background: #d5f1f7; color: #11323c; }.catalog-active-filters button { color: #152126; }.author-card-portrait .author-image-placeholder[hidden] { display: none !important; }.author-card-portrait img[hidden] { display: none !important; }.article-list-page .page-intro p { max-width: 55ch; }@media (max-width: 620px) {.catalog-search input,
    .catalog-filter-search,
    .catalog-sort-dropdown > button,
    .catalog-filter-toggle { font-size: 1rem; }.catalog-filter-toast { right: 14px; bottom: 14px; left: 14px; text-align: center; }}

/* Filter counts and compact mobile pagination. */
.catalog-filter-options { padding-right: 12px; }
.catalog-checkbox b { min-width: 28px; margin-right: 4px; text-align: right; }
.pagination-mobile { display: none; }
@media (max-width: 620px) {
    .pagination-desktop { display: none; }
    .pagination-mobile {
        display: flex;
        flex-wrap: nowrap;
        justify-content: center;
        width: 100%;
        gap: 4px;
        overflow: hidden;
    }
    .pagination-mobile a { min-width: 36px; width: 36px; height: 40px; min-height: 40px; }
    .pagination-mobile .pagination-ellipsis { min-width: 20px; width: 20px; height: 40px; }
    .catalog-filter-options { padding-right: 16px; }
    .catalog-checkbox b { margin-right: 6px; }
}

/* Final books-filter presentation:
   desktop accordion + unchanged mobile tabs in a true viewport overlay. */
.catalog-filter-panel {
    max-height: calc(100dvh - var(--header-height) - 44px);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    padding-right: 0;
}

.catalog-filter-header {
    flex: 0 0 auto;
}

.catalog-filter-header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.catalog-filter-reset {
    color: #465258;
    font-family: var(--font-ui);
    font-size: .72rem;
    font-weight: 750;
    text-decoration: underline;
    text-underline-offset: 3px;
}

.catalog-filter-body {
    min-height: 0;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.catalog-filter-mobile-tabs {
    display: none;
}

.catalog-filter-group {
    display: block;
    flex: 0 0 auto;
    border-bottom: 1px solid var(--ar-line);
}

.catalog-filter-group.is-filter-active {
    min-height: 0;
    display: flex;
    flex: 1 1 auto;
    flex-direction: column;
}

.catalog-filter-group-heading {
    width: 100%;
    min-height: 48px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    flex: 0 0 auto;
    padding: 12px 0;
    border: 0;
    background: transparent;
    color: var(--ar-ink);
    font-family: var(--font-ui);
    font-size: .78rem;
    font-weight: 800;
    text-align: left;
    cursor: pointer;
}

.catalog-filter-group-heading:hover,
.catalog-filter-group-heading.is-active {
    color: var(--ar-cyan-deep);
}

.catalog-filter-group-heading:focus-visible {
    outline: 3px solid rgba(0, 111, 145, .3);
    outline-offset: 2px;
}

.catalog-filter-group-meta {
    display: inline-flex;
    align-items: center;
    gap: 9px;
}

.catalog-filter-group-meta b {
    color: #50585d;
    font-size: .68rem;
}

.catalog-filter-group-meta i {
    width: 18px;
    color: var(--ar-cyan-deep);
    font-size: 1rem;
    font-style: normal;
    font-weight: 500;
    text-align: right;
}

.catalog-filter-group-content {
    min-height: 0;
    display: grid;
    grid-template-rows: auto minmax(0, 1fr);
    flex: 1 1 auto;
    overflow: hidden;
    padding-bottom: 10px;
}

.catalog-filter-group-content[hidden] {
    display: none !important;
}

.catalog-filter-search {
    height: 36px;
    margin-bottom: 8px;
    font-size: .84rem;
}

.catalog-filter-options {
    min-height: 0;
    max-height: none;
    overflow-y: auto;
    overscroll-behavior: contain;
    padding: 0 14px 8px 0;
    scrollbar-width: thin;
    scrollbar-color: #758187 #e4e8ea;
}

.catalog-filter-options::-webkit-scrollbar {
    width: 7px;
}

.catalog-filter-options::-webkit-scrollbar-track {
    background: #e4e8ea;
}

.catalog-filter-options::-webkit-scrollbar-thumb {
    border: 2px solid #e4e8ea;
    border-radius: 999px;
    background: #758187;
}

.catalog-checkbox {
    min-height: 36px;
    padding: 5px 1px;
    font-size: .78rem;
}

.catalog-checkbox b {
    font-size: .66rem;
}

.catalog-filter-footer,
.catalog-filter-scroll-hint {
    display: none !important;
}

.catalog-content.is-loading .catalog-results {
    opacity: .55;
    pointer-events: none;
}

@media (min-width: 901px) {
    .catalog-search {
        padding: 17px 0;
    }

    .catalog-search input {
        height: 40px;
        font-size: .88rem;
    }

    .catalog-special-filter {
        min-height: 58px;
        padding: 13px 0;
        font-size: .8rem;
    }

    .catalog-special-filter small {
        font-size: .68rem;
    }

    .catalog-filter-body {
        max-height: calc(100dvh - var(--header-height) - 114px);
    }

    .catalog-filter-group.is-filter-active {
        min-height: 170px;
    }

    .catalog-filter-options {
        max-height: min(270px, calc(100dvh - 430px));
    }
}

@media (max-width: 900px) {
    html:has(body.catalog-filter-open),
    body.catalog-filter-open {
        overflow: hidden !important;
        overscroll-behavior: none;
    }

    body.catalog-filter-open {
        touch-action: none;
    }

    .catalog-filter-toggle {
        position: relative;
        z-index: 1;
        min-height: 52px;
        margin-bottom: 24px;
        padding: 13px 16px;
        border: 1px solid #233036;
        background: var(--ar-white);
        color: var(--ar-ink);
        box-shadow: 0 8px 22px rgba(19, 31, 36, .06);
        cursor: pointer;
    }

    .catalog-filter-backdrop {
        display: none !important;
    }

    .catalog-sidebar {
        position: fixed !important;
        z-index: 2147483000 !important;
        top: var(--catalog-filter-viewport-top, 0) !important;
        right: 0 !important;
        bottom: auto !important;
        left: 0 !important;
        width: 100% !important;
        min-width: 100% !important;
        max-width: none !important;
        height: var(--catalog-filter-viewport-height, 100dvh) !important;
        min-height: var(--catalog-filter-viewport-height, 100dvh) !important;
        max-height: var(--catalog-filter-viewport-height, 100dvh) !important;
        margin: 0 !important;
        padding: 0 !important;
        overflow: hidden !important;
        isolation: isolate;
        visibility: hidden;
        background: var(--ar-paper);
        opacity: 0;
        transform: none !important;
        pointer-events: none;
        transition:
            opacity .18s ease,
            visibility 0s linear .18s;
    }

    .catalog-sidebar.is-open {
        visibility: visible;
        opacity: 1;
        pointer-events: auto;
        transition-delay: 0s;
    }

    .catalog-filter-panel {
        width: 100%;
        height: 100%;
        max-height: none;
        display: grid;
        grid-template-rows: 60px minmax(0, 1fr);
        overflow: hidden;
        padding: 0;
        border: 0;
        background: var(--ar-paper);
    }

    .catalog-filter-header {
        position: relative;
        z-index: 3;
        min-height: 60px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding:
            max(8px, env(safe-area-inset-top))
            16px
            8px;
        border-bottom: 1px solid var(--ar-line);
        background: var(--ar-paper);
    }

    .catalog-filter-header .section-kicker {
        margin: 0;
    }

    .catalog-filter-header-actions {
        gap: 8px;
    }

    .catalog-filter-header button[data-filter-close] {
        width: 42px;
        height: 42px;
        display: grid;
        place-items: center;
        flex: 0 0 42px;
        padding: 0;
        border: 0;
        border-radius: 50%;
        background: transparent;
        color: var(--ar-ink);
        font-size: 1.65rem;
        line-height: 1;
        cursor: pointer;
    }

    .catalog-filter-header button[data-filter-close]:hover {
        background: var(--ar-cyan-soft);
        color: var(--ar-cyan-deep);
    }

    .catalog-filter-header button[data-filter-close]:focus-visible,
    .catalog-filter-mobile-tabs button:focus-visible {
        outline: 3px solid rgba(0, 111, 145, .35);
        outline-offset: 2px;
    }

    .catalog-filter-body {
        min-height: 0;
        display: grid;
        grid-template-rows:
            auto
            auto
            48px
            minmax(0, 1fr);
        overflow: hidden;
        padding: 0 16px max(10px, env(safe-area-inset-bottom));
        background: var(--ar-paper);
    }

    .catalog-search {
        flex: none;
        padding: 12px 0 10px;
    }

    .catalog-search > span {
        display: none;
    }

    .catalog-search > div {
        margin: 0;
    }

    .catalog-search input {
        height: 42px;
    }

    .catalog-special-filter {
        min-height: 56px;
        align-items: center;
        padding: 9px 0;
    }

    .catalog-special-filter small {
        margin-top: 2px;
        font-size: .72rem;
    }

    .catalog-filter-mobile-tabs {
        display: grid;
        grid-template-columns: 1fr 1fr;
        align-items: end;
        border-bottom: 1px solid var(--ar-line);
    }

    .catalog-filter-mobile-tabs button {
        min-width: 0;
        min-height: 48px;
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 7px;
        padding: 0 10px;
        border: 0;
        border-bottom: 3px solid transparent;
        background: transparent;
        color: #5a666b;
        font-family: var(--font-ui);
        font-size: .82rem;
        font-weight: 780;
        cursor: pointer;
    }

    .catalog-filter-mobile-tabs button b {
        color: inherit;
        font-size: .68rem;
    }

    .catalog-filter-mobile-tabs button.is-active {
        border-bottom-color: var(--ar-cyan-deep);
        color: var(--ar-cyan-deep);
    }

    .catalog-filter-group {
        min-height: 0;
        display: none;
        overflow: hidden;
        border-bottom: 0;
    }

    .catalog-filter-group.is-filter-active {
        min-height: 0;
        display: flex;
        flex-direction: column;
    }

    .catalog-filter-group[hidden] {
        display: none !important;
    }

    .catalog-filter-group-heading {
        display: none;
    }

    .catalog-filter-group-content {
        min-height: 0;
        display: grid;
        grid-template-rows: auto minmax(0, 1fr);
        flex: 1 1 auto;
        overflow: hidden;
        padding-top: 10px;
        padding-bottom: 0;
    }

    .catalog-filter-search {
        width: 100%;
        height: 42px;
        margin-bottom: 8px;
        font-size: 1rem;
    }

    .catalog-filter-options {
        min-height: 0;
        max-height: none;
        overflow-y: auto;
        overscroll-behavior: contain;
        padding: 0 14px 10px 0;
    }

    .catalog-checkbox {
        min-height: 42px;
        padding: 7px 2px;
        font-size: .84rem;
    }

    .catalog-filter-toast {
        z-index: 2147483001;
        top: calc(var(--catalog-filter-viewport-top, 0px) + 72px);
        right: 16px;
        bottom: auto;
        left: 16px;
        max-width: none;
        padding: 11px 14px;
        border-left: 4px solid var(--ar-cyan);
        background: #172024;
        color: #fff;
        text-align: center;
        box-shadow: 0 14px 36px rgba(0, 0, 0, .24);
        transform: translateY(-10px);
    }

    .catalog-filter-toast.is-visible {
        transform: translateY(0);
    }
}

@media (max-width: 430px) {
    .catalog-filter-body {
        padding-inline: 12px;
    }

    .catalog-filter-header {
        padding-inline: 12px;
    }

    .catalog-filter-mobile-tabs button {
        padding-inline: 6px;
        font-size: .78rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    .catalog-sidebar,
    .catalog-filter-toast {
        transition: none !important;
    }
}

/* Final correction:
   desktop sections may all be collapsed;
   mobile filter uses the native dialog top layer. */
dialog.catalog-sidebar {
    margin: 0;
    padding: 0;
    border: 0;
    color: inherit;
    background: transparent;
}

dialog.catalog-sidebar::backdrop {
    background: rgba(16, 22, 25, .48);
}

@media (min-width: 901px) {
    dialog.catalog-sidebar {
        position: sticky;
        top: calc(var(--header-height) + 26px);
        display: block;
        width: auto;
        max-width: none;
        height: auto;
        max-height: none;
        overflow: visible;
    }

    .catalog-filter-group:not(.is-filter-active) {
        flex: 0 0 auto;
    }

    .catalog-filter-group:not(.is-filter-active) .catalog-filter-group-content {
        display: none !important;
    }

    .catalog-filter-group.is-filter-active {
        min-height: 170px;
    }
}

@media (max-width: 900px) {
    dialog.catalog-sidebar:not(:modal) {
        display: none !important;
    }

    dialog.catalog-sidebar:modal {
        position: fixed !important;
        inset: 0 !important;
        display: block !important;
        width: 100vw !important;
        min-width: 100vw !important;
        max-width: 100vw !important;
        height: 100dvh !important;
        min-height: 100dvh !important;
        max-height: 100dvh !important;
        margin: 0 !important;
        padding: 0 !important;
        overflow: hidden !important;
        background: var(--ar-paper);
        opacity: 1;
        transform: none !important;
    }

    dialog.catalog-sidebar:modal .catalog-filter-panel {
        width: 100%;
        height: 100%;
        min-height: 100%;
        max-height: 100%;
    }

    dialog.catalog-sidebar:modal .catalog-filter-toast {
        position: absolute;
        z-index: 4;
        top: 72px;
        right: 16px;
        left: 16px;
    }
}

/* Lighthouse: disabled pagination controls are non-link spans. */
.books-pagination .pagination-arrow {
    display: grid;
    min-width: 46px;
    min-height: 46px;
    height: 46px;
    place-items: center;
    border: 1px solid var(--ar-line);
    background: var(--ar-white);
    font-size: 1.15rem;
    font-weight: 750;
}

.books-pagination span.pagination-arrow.is-disabled {
    border-color: transparent;
    background: transparent;
    color: #5f696e;
    opacity: .5;
    cursor: default;
    user-select: none;
}

@media (max-width: 620px) {
    .pagination-mobile .pagination-arrow {
        width: 36px;
        min-width: 36px;
        min-height: 40px;
        height: 40px;
    }
}