.library-toolbar {
    position: sticky;
    z-index: 10;
    top: 5.25rem;
    display: grid;
    grid-template-columns: minmax(15rem, 1fr) auto;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
    padding: 0.75rem;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: rgba(3, 10, 24, 0.92);
    backdrop-filter: blur(14px);
}

.library-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
}

.library-filter {
    min-height: 2.75rem;
    padding: 0.5rem 0.8rem;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    color: var(--muted);
    background: rgba(9, 25, 47, 0.88);
    cursor: pointer;
    font-weight: 700;
}

.library-filter[aria-pressed="true"] {
    border-color: var(--line-gold);
    color: var(--gold-300);
    background: rgba(23, 104, 199, 0.24);
}

.catalog-section {
    padding-block: 1.5rem 2.5rem;
    scroll-margin-top: 10rem;
}

.catalog-section__heading {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1rem;
}

.catalog-section__heading h2 {
    margin: 0;
    color: var(--gold-300);
    font: 400 2rem/1 Lifecraft, serif;
}

.catalog-section__heading p {
    margin: 0;
    color: var(--muted);
}

.catalog-section__note {
    max-width: 48rem;
    margin: -0.2rem 0 1.25rem;
    color: var(--muted);
    line-height: 1.55;
}

.catalog-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.catalog-grid--clients {
    grid-template-columns: 1fr;
}

.catalog-card {
    display: flex;
    min-width: 0;
    flex-direction: column;
    padding: 1.1rem;
    border-radius: var(--radius);
}

.catalog-card__content {
    min-width: 0;
}

.catalog-card--client {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: clamp(1.25rem, 4vw, 3rem);
    padding: clamp(1.25rem, 3vw, 1.75rem);
}

.catalog-card--client h3 {
    font-size: clamp(1.2rem, 2vw, 1.5rem);
}

.catalog-card--client .catalog-card__details {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem 1.25rem;
    margin-bottom: 0;
}

.catalog-card--client .catalog-card__actions {
    margin-top: 0;
}

.catalog-card--client .catalog-card__download {
    min-width: 14rem;
    min-height: 4.25rem;
    padding-inline: 1.5rem;
    font-size: 1.05rem;
}

.catalog-card.is-featured {
    border-color: var(--line-gold);
}

.catalog-card__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    margin-bottom: 0.75rem;
}

.catalog-pill {
    padding: 0.22rem 0.45rem;
    border: 1px solid var(--line);
    border-radius: 999px;
    color: var(--muted);
    background: rgba(2, 9, 21, 0.56);
    font-size: 0.68rem;
}

.catalog-pill--featured {
    border-color: var(--line-gold);
    color: var(--gold-300);
    background: rgba(111, 76, 13, 0.22);
}

.catalog-pill--backport {
    border-color: rgba(92, 170, 255, 0.5);
    color: #a9d7ff;
    background: rgba(23, 104, 199, 0.16);
}

.catalog-pill--source {
    border-color: rgba(138, 201, 255, 0.38);
    color: #c9e5ff;
}

.catalog-card__details {
    display: grid;
    gap: 0.35rem;
    margin: 0.9rem 0 1rem;
    padding: 0;
    color: var(--muted);
    font-size: 0.77rem;
    list-style: none;
}

.catalog-card__details strong {
    color: #dce9f5;
}

.catalog-card__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: auto;
}

.addon-category {
    padding-block: 1.25rem 0.75rem;
    border-top: 1px solid var(--line);
}

.addon-category:first-of-type {
    padding-top: 0;
    border-top: 0;
}

.addon-category__heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.85rem 1rem;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    background: rgba(5, 18, 36, 0.58);
    cursor: pointer;
    list-style: none;
    transition: border-color 160ms ease, background 160ms ease;
}

.addon-category__heading::-webkit-details-marker {
    display: none;
}

.addon-category__heading:hover,
.addon-category__heading:focus-visible,
.addon-category[open] > .addon-category__heading {
    border-color: var(--line-gold);
    background: rgba(12, 35, 66, 0.82);
}

.addon-category__title {
    display: inline-flex;
    min-width: 0;
    align-items: center;
    gap: 0.7rem;
}

.addon-category__chevron {
    display: inline-grid;
    width: 1rem;
    height: 1rem;
    place-items: center;
    color: var(--gold-400);
    font: 700 1.45rem/1 Georgia, serif;
    transition: transform 180ms ease;
}

.addon-category[open] > .addon-category__heading .addon-category__chevron {
    transform: rotate(90deg);
}

.addon-category__heading h3 {
    margin: 0;
    color: var(--text);
    font: 400 1.55rem/1 Lifecraft, serif;
}

.addon-category__heading p {
    margin: 0;
    color: var(--muted);
    font-size: 0.8rem;
}

.addon-category__content {
    padding-top: 0.85rem;
}

.addon-subcategory + .addon-subcategory {
    margin-top: 1.25rem;
}

.addon-subcategory h4 {
    margin: 0 0 0.7rem;
    color: var(--gold-300);
    font-size: 0.9rem;
}

.unavailable {
    display: inline-flex;
    min-height: 2.4rem;
    align-items: center;
    padding: 0.45rem 0.75rem;
    border: 1px dashed var(--line);
    border-radius: var(--radius-sm);
    color: var(--muted);
    font-size: 0.82rem;
}

@media (max-width: 64rem) {
    .catalog-grid--addons,
    .catalog-grid--patches { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 45rem) {
    .library-toolbar { position: static; grid-template-columns: 1fr; }
    .catalog-grid { grid-template-columns: 1fr; }
    .catalog-card--client { grid-template-columns: 1fr; align-items: stretch; }
    .catalog-card--client .catalog-card__actions { width: 100%; }
    .catalog-card--client .catalog-card__download { width: 100%; min-width: 0; }
    .catalog-section__heading, .addon-category__heading { align-items: start; flex-direction: column; }
}