/*
 * Knowledge Hub
 * Templates: template-knowledge-hub.php, taxonomy-topic.php, taxonomy-housing-provider.php
 * Parts:     template-parts/kh-member-bar.php, kh-filter.php, kh-topics.php,
 *            kh-listing.php, kh-archive.php (hero: page-hero.css)
 * Auto-enqueued by functions.php after css/theme.css.
 *
 * Tiles and the grid live in kh-card.css; .card / .panel and .breadcrumb
 * are defined in single-event.css and reused here.
 */

/* --- Member bar ---------------------------------------------------------- */

/* Pale strip between the white header and the green hub hero. */
.kh-member-bar {
    padding-block: var(--space-xs);
    font-size: var(--text--1);
    color: var(--color-primary);
    background-color: var(--color-contrast);
}

.kh-member-bar__layout {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-2xs) var(--space-md);
}

.kh-member-bar__status {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2xs);
    margin: 0;
    font-weight: var(--font-light);
}

.kh-member-bar__status strong {
    font-weight: var(--font-heavy);
}

.kh-member-bar__avatar {
    width: var(--space-md);
    height: var(--space-md);
    background: url('../../assets/graphics/members-area-btn-icon.svg') center / contain no-repeat;
    background-color: var(--color-secondary);
    border-radius: 50%;
}

.kh-member-bar__menu {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
}

.kh-member-bar__link {
    color: var(--color-primary);
    font-weight: var(--font-regular);
    text-decoration: none;
    transition: color 0.3s ease-in-out;
}

.kh-member-bar__link:hover {
    color: var(--color-secondary);
    text-decoration: underline;
}

/* --- Page shell ---------------------------------------------------------- */

.kh-archive {
    --section-pad: var(--space-2xl);
    background-color: var(--color-muted);
}

.kh-archive__layout {
    display: flex;
    flex-direction: column;
    gap: var(--space-2xl);
}

/* Breadcrumb sits on the muted ground here, not the green banner, so it takes the text colour. */
.kh-archive__breadcrumb {
    margin-bottom: calc(var(--space-2xl) * -1 + var(--space-md));
    color: var(--color-primary);
}

/* --- Filter panel -------------------------------------------------------- */

.kh-filter__heading {
    margin: 0 0 var(--space-xs);
    font-size: var(--text-3);
}

.kh-filter__intro {
    margin: 0 0 var(--space-md);
    font-weight: var(--font-light);
}

.kh-filter__form {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) minmax(0, 2fr) auto;
    gap: var(--space-md);
    align-items: end;
}

.kh-filter__field {
    display: flex;
    flex-direction: column;
    gap: var(--space-2xs);
}

.kh-filter__label {
    font-family: var(--font-heading);
    font-size: var(--text-1);
    color: var(--color-text);
}

/* Inputs: the theme border and radius, with the UX icon inset on the left. */
.kh-filter__select,
.kh-filter__input {
    --chevron: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M6 9l6 6 6-6' fill='none' stroke='%23051A0F' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    width: 100%;
    padding: var(--space-sm) var(--space-sm) var(--space-sm) calc(var(--space-sm) + var(--space-md) + var(--space-xs));
    font-family: var(--font-body);
    font-size: var(--text-0);
    font-weight: var(--font-regular);
    line-height: 1.5;
    color: var(--color-text);
    background-color: var(--color-background);
    background-repeat: no-repeat;
    background-position: var(--space-sm) center;
    background-size: var(--space-md);
    border: 2px solid var(--color-secondary);
    border-radius: .5rem;
    appearance: none;
    transition: border-color 0.3s ease-in-out, box-shadow 0.3s ease-in-out;
}

.kh-filter__select:focus-visible,
.kh-filter__input:focus-visible {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 var(--space-3xs) var(--color-contrast);
}

.kh-filter__select {
    padding-right: calc(var(--space-sm) + var(--space-md) + var(--space-xs));
    background-position: var(--space-sm) center, right var(--space-sm) center;
    background-size: var(--space-md), var(--space-md);
    cursor: pointer;
}

.kh-filter__select--topic {
    background-image: url('../../assets/graphics/search-ux-label.svg'), var(--chevron);
}

.kh-filter__select--provider {
    background-image: url('../../assets/graphics/search-ux-provider.svg'), var(--chevron);
}

.kh-filter__input {
    background-image: url('../../assets/graphics/search-ux-search.svg');
}

.kh-filter__input::placeholder {
    color: var(--color-text);
    opacity: 0.6;
}

.kh-filter__input::-webkit-search-decoration,
.kh-filter__input::-webkit-search-cancel-button {
    appearance: none;
}

.kh-filter__submit {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-2xs);
    width: 100%;
    cursor: pointer;
}

.kh-filter__status {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-sm);
    margin: var(--space-md) 0 0;
}

.kh-filter__clear {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2xs);
    color: var(--color-secondary);
    text-decoration: none;
    transition: color 0.3s ease-in-out;
}

.kh-filter__clear::before {
    content: "";
    width: var(--space-sm);
    height: var(--space-sm);
    background: url('../../assets/graphics/search-ux-clear.svg') center / contain no-repeat;
}

.kh-filter__clear:hover {
    color: var(--color-primary);
}

.kh-filter__count {
    font-weight: var(--font-light);
}

.kh-filter__count strong {
    font-weight: var(--font-heavy);
    color: var(--color-secondary);
}

/* --- Topic directory ----------------------------------------------------- */

.kh-topics__header {
    max-width: 44rem;
    margin-bottom: var(--space-lg);
}

.kh-topics__heading {
    margin: 0 0 var(--space-xs);
    font-size: var(--text-3);
}

.kh-topics__intro {
    margin: 0;
    font-weight: var(--font-light);
}

.kh-topics__grid {
    display: grid;
    /* 24rem minimum caps the full-width container at three columns, matching the design. */
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 24rem), 1fr));
    gap: var(--space-md);
}

.kh-topic {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    padding: var(--space-lg);
}

.kh-topic__title {
    margin: 0;
    padding-bottom: var(--space-sm);
    font-size: var(--text-2);
    border-bottom: 2px solid var(--color-contrast);
}

.kh-topic__title-link {
    color: var(--color-primary);
    text-decoration: none;
    transition: color 0.3s ease-in-out;
}

.kh-topic__title-link:hover {
    color: var(--color-secondary);
}

.kh-topic__list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
}

.kh-topic__link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-2xs) 0;
    color: var(--color-text);
    font-weight: var(--font-light);
    text-decoration: none;
    transition: color 0.3s ease-in-out, padding-left 0.3s ease-in-out;
}

.kh-topic__link:hover {
    padding-left: var(--space-2xs);
    color: var(--color-secondary);
}

.kh-topic__link:hover .kh-topic__name {
    text-decoration: underline;
}

.kh-topic__count {
    flex-shrink: 0;
    min-width: 1.75rem;
    padding: 2px var(--space-2xs);
    font-size: var(--text--2);
    font-weight: var(--font-regular);
    line-height: 1.5;
    text-align: center;
    color: var(--color-primary);
    background-color: var(--color-contrast);
    border-radius: 100vmax;
}

.kh-topic__all {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2xs);
    margin-top: auto;
    padding-top: var(--space-sm);
    color: var(--color-secondary);
    text-decoration: none;
    border-top: 2px solid var(--color-contrast);
    transition: color 0.3s ease-in-out;
}

.kh-topic__all:hover {
    color: var(--color-primary);
}

/* --- Listing header ------------------------------------------------------ */

.kh-listing__header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.kh-listing__heading {
    margin: 0;
    font-size: var(--text-3);
}

.kh-listing__link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2xs);
    color: var(--color-secondary);
    text-decoration: none;
    transition: color 0.3s ease-in-out;
}

.kh-listing__link:hover {
    color: var(--color-primary);
}

/* --- Empty state --------------------------------------------------------- */

.kh-empty {
    text-align: center;
}

.kh-empty__heading {
    margin: 0 0 var(--space-xs);
    font-size: var(--text-2);
}

.kh-empty__text {
    margin: 0;
    font-weight: var(--font-light);
}

/* --- Pagination ---------------------------------------------------------- */

.kh-pagination {
    margin-top: var(--space-lg);
}

.kh-pagination .page-numbers {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-2xs);
}

.kh-pagination a.page-numbers,
.kh-pagination span.page-numbers {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    min-width: var(--space-xl);
    padding: var(--space-xs) var(--space-sm);
    color: var(--color-primary);
    text-decoration: none;
    border: 2px solid transparent;
    border-radius: .5rem;
    transition: background-color 0.3s ease-in-out, color 0.3s ease-in-out;
}

.kh-pagination a.page-numbers:hover {
    background-color: var(--color-contrast);
}

.kh-pagination .page-numbers.current {
    color: var(--color-contrast);
    background-color: var(--color-primary);
}

.kh-pagination .page-numbers.dots {
    color: var(--color-text);
}

/* --- Responsive ---------------------------------------------------------- */

@media screen and (max-width: 1024px) {

    .kh-filter__form {
        grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    }

    .kh-filter__field--keyword,
    .kh-filter__field--submit {
        grid-column: 1 / -1;
    }

}

@media screen and (max-width: 768px) {

    .kh-member-bar__layout {
        justify-content: center;
        text-align: center;
    }

    .kh-filter__form {
        grid-template-columns: 1fr;
    }

    .kh-topic {
        padding: var(--space-md);
    }

    .kh-listing__header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-2xs);
    }

}