/* ── Каталог: умный поиск и фильтры ── */

.catalog-toolbar {
    margin: 28px 0 32px;
}

.catalog-search-panel {
    position: relative;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 22px 22px 18px;
    overflow: visible;
    box-shadow: var(--shadow);
}

.catalog-search-panel::before {
    content: "";
    position: absolute;
    inset: -1px;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(135deg, rgba(255, 176, 32, .45), transparent 42%, rgba(84, 214, 180, .25));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

.catalog-search-field {
    position: relative;
    display: flex;
    align-items: center;
}

.catalog-search-field > i {
    position: absolute;
    left: 18px;
    color: var(--text-dim);
    pointer-events: none;
    font-size: 1.05rem;
}

.catalog-search-input {
    width: 100%;
    height: 58px;
    padding: 0 148px 0 50px !important;
    border-radius: 999px !important;
    border: 1px solid var(--border-strong) !important;
    background: var(--surface-solid) !important;
    font-size: 1rem !important;
    transition: border-color .2s, box-shadow .2s;
}

.catalog-search-input:focus {
    border-color: var(--brand) !important;
    box-shadow: 0 0 0 4px rgba(255, 176, 32, .14) !important;
}

.catalog-search-actions-inline {
    position: absolute;
    right: 7px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    align-items: center;
    gap: 6px;
}

.catalog-search-submit {
    height: 44px;
    padding: 0 22px;
    border: none;
    border-radius: 999px;
    background: var(--grad-brand);
    color: #fff;
    font-weight: 700;
    font-size: .9rem;
    cursor: pointer;
    transition: transform .2s, box-shadow .2s;
    white-space: nowrap;
}

.catalog-search-submit:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 24px -8px var(--brand-shadow);
}

.catalog-search-suggestions {
    position: absolute;
    left: 0;
    right: 0;
    top: calc(100% + 8px);
    z-index: 30;
    background: var(--surface-solid);
    border: 1px solid var(--border-strong);
    border-radius: 16px;
    box-shadow: 0 24px 48px -20px rgba(0, 0, 0, .45);
    overflow: hidden;
    max-height: 380px;
    overflow-y: auto;
}

.catalog-search-suggestions[hidden] { display: none !important; }

.catalog-suggest-meta {
    padding: 10px 16px;
    font-size: .76rem;
    color: var(--text-dim);
    border-bottom: 1px solid var(--border);
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    align-items: center;
}

.catalog-suggest-meta .variant {
    padding: 2px 8px;
    border-radius: 999px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    color: var(--text-muted);
    font-weight: 600;
}

.catalog-suggest-item {
    display: grid;
    grid-template-columns: 52px 1fr auto;
    gap: 12px;
    align-items: center;
    padding: 12px 16px;
    text-decoration: none;
    color: inherit;
    border-bottom: 1px solid var(--border);
    transition: background .15s;
}

.catalog-suggest-item:last-child { border-bottom: none; }

.catalog-suggest-item:hover,
.catalog-suggest-item.is-active {
    background: var(--surface-2);
}

.catalog-suggest-item img {
    width: 52px;
    height: 36px;
    object-fit: cover;
    border-radius: 8px;
    border: 1px solid var(--border);
}

.catalog-suggest-title {
    font-weight: 700;
    color: var(--heading);
    line-height: 1.25;
}

.catalog-suggest-sub {
    font-size: .8rem;
    color: var(--text-muted);
    margin-top: 2px;
}

.catalog-suggest-badge {
    font-size: .72rem;
    font-weight: 700;
    color: var(--brand);
    white-space: nowrap;
}

.catalog-filters-panel {
    display: grid;
    grid-template-rows: 0fr;
    margin-top: 0;
    transition:
        grid-template-rows .42s cubic-bezier(.22, 1, .36, 1),
        margin-top .42s cubic-bezier(.22, 1, .36, 1);
}

.catalog-filters-panel__inner {
    overflow: hidden;
    min-height: 0;
    opacity: 0;
    transform: translateY(-10px);
    transition:
        opacity .34s ease,
        transform .42s cubic-bezier(.22, 1, .36, 1);
}

.catalog-filters-panel.is-open {
    grid-template-rows: 1fr;
    margin-top: 18px;
}

.catalog-filters-panel.is-open .catalog-filters-panel__inner {
    opacity: 1;
    transform: translateY(0);
}

.catalog-filters-panel .catalog-filter-block {
    opacity: 0;
    transform: translateY(8px);
    transition:
        opacity .32s ease,
        transform .38s cubic-bezier(.22, 1, .36, 1);
}

.catalog-filters-panel.is-open .catalog-filter-block {
    opacity: 1;
    transform: translateY(0);
}

.catalog-filters-panel.is-open .catalog-filter-block:nth-child(1) { transition-delay: .06s; }
.catalog-filters-panel.is-open .catalog-filter-block:nth-child(2) { transition-delay: .1s; }
.catalog-filters-panel.is-open .catalog-filter-block:nth-child(3) { transition-delay: .14s; }
.catalog-filters-panel.is-open .catalog-filter-block:nth-child(4) { transition-delay: .18s; }

@media (prefers-reduced-motion: reduce) {
    .catalog-filters-panel,
    .catalog-filters-panel__inner,
    .catalog-filters-panel .catalog-filter-block {
        transition: none !important;
        transform: none !important;
    }
}

.catalog-filters-toggle {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    padding: 0;
    border-radius: 999px;
    border: 1px solid var(--border-strong);
    background: var(--surface-solid);
    color: var(--text-muted);
    font-size: 1.05rem;
    cursor: pointer;
    transition: border-color .2s, color .2s, background .2s, box-shadow .2s;
    flex-shrink: 0;
}

.catalog-filters-toggle:hover {
    color: var(--heading);
    border-color: var(--brand);
}

.catalog-filters-toggle.is-open {
    border-color: rgba(255, 176, 32, .45);
    color: var(--brand);
    background: rgba(255, 176, 32, .08);
}

.catalog-filters-count {
    position: absolute;
    top: -4px;
    right: -4px;
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    border-radius: 999px;
    background: var(--grad-brand);
    color: #fff;
    font-size: .68rem;
    font-weight: 800;
    line-height: 18px;
    text-align: center;
    border: 2px solid var(--surface-solid);
}

.catalog-filters-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
    padding-top: 18px;
    border-top: 1px solid var(--border);
}

@media (max-width: 992px) {
    .catalog-filters-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 576px) {
    .catalog-filters-grid { grid-template-columns: 1fr; }
    .catalog-search-input { padding-right: 132px !important; }
    .catalog-search-submit { padding: 0 16px; font-size: .84rem; }
}

.catalog-filter-block label {
    display: block;
    font-size: .74rem;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--text-dim);
    margin-bottom: 8px;
}

.catalog-chip-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.catalog-chip-row input { position: absolute; opacity: 0; pointer-events: none; }

.catalog-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border-radius: 999px;
    border: 1px solid var(--border-strong);
    background: var(--surface-solid);
    color: var(--text-muted);
    font-size: .86rem;
    font-weight: 600;
    cursor: pointer;
    transition: all .2s ease;
    user-select: none;
    white-space: nowrap;
}

.catalog-chip:hover {
    color: var(--heading);
    border-color: var(--brand);
    transform: translateY(-1px);
}

.catalog-chip-row input:checked + .catalog-chip,
.catalog-chip.is-on {
    background: var(--grad-brand);
    border-color: transparent;
    color: #fff;
    box-shadow: 0 8px 20px -8px var(--brand-shadow);
}

.catalog-sort-select {
    width: 100%;
    height: 42px;
    border-radius: 999px !important;
    border: 1px solid var(--border-strong) !important;
    background: var(--surface-solid) !important;
    font-weight: 600;
    font-size: .88rem;
    padding: 0 14px !important;
}

.catalog-active-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    margin-top: 14px;
    min-height: 0;
}

.catalog-active-bar:empty { display: none; }

.catalog-active-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px 6px 12px;
    border-radius: 999px;
    background: rgba(255, 176, 32, .12);
    border: 1px solid rgba(255, 176, 32, .28);
    color: var(--heading);
    font-size: .82rem;
    font-weight: 600;
    text-decoration: none;
}

.catalog-active-chip:hover { color: var(--heading); border-color: var(--brand); }

.catalog-active-chip i { font-size: .9rem; opacity: .7; }

.catalog-reset-link {
    margin-left: auto;
    font-size: .84rem;
    font-weight: 600;
    color: var(--text-muted);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.catalog-reset-link:hover { color: var(--brand); }

.catalog-results-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 22px;
}

.catalog-results-count {
    font-size: .95rem;
    color: var(--text-muted);
}

.catalog-results-count strong {
    color: var(--heading);
    font-weight: 800;
}

.course-card.is-search-hit {
    border-color: rgba(255, 176, 32, .35);
}

.catalog-empty {
    max-width: 640px;
    margin: 48px auto;
    padding: 44px 32px;
    text-align: center;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
}

.catalog-empty i {
    font-size: 2.2rem;
    color: var(--brand);
    display: block;
    margin-bottom: 1rem;
}

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