/* Research-category cards, publication cards and the collapsible "All Publications"
   tree. Shared by research.html and music.html. The macros that render them are in
   templates/includes/research_macros.html.j2; the toggle behaviour is assets/js/research-cards.js. */

/* ---------- Research category cards ---------- */
.category-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin: 1.25rem 0 0.5rem;
}

.category-card {
    border: 1px solid #d9d9d9;
    border-radius: 10px;
    background: linear-gradient(180deg, #fafafa 0%, #fdfdfd 100%);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.6), 0 1px 2px rgba(0, 0, 0, 0.04);
    overflow: hidden;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.category-card:hover,
.category-card.open {
    border-color: #333;
}

.category-card.open {
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
}

.category-summary {
    display: flex;
    align-items: center;
    gap: 18px;
    width: 100%;
    margin: 0;
    padding: 14px 18px 14px 14px;
    background: none;
    border: 0;
    text-align: left;
    font: inherit;
    color: inherit;
    cursor: pointer;
}

.category-summary:focus-visible {
    outline: 2px solid purple;
    outline-offset: -2px;
}

/* override the site-wide <img> sizing for the card icons */
.category-card .category-icon {
    flex: 0 0 auto;
    width: 96px;
    height: 96px;
    padding: 0;
    margin: 0;
    border: 1px solid #ccc;
    border-radius: 6px;
    background: #fff;
    object-fit: cover;
}

.category-text {
    flex: 1 1 auto;
    min-width: 0;
}

.category-title {
    font-size: 1.35em;
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 4px;
}

.category-tagline {
    font-size: 1.05em;
    font-style: italic;
    color: #666;
}

.category-chevron {
    flex: 0 0 auto;
    width: 10px;
    height: 10px;
    margin-right: 6px;
    border-right: 2px solid #666;
    border-bottom: 2px solid #666;
    transform: rotate(45deg);
    transition: transform 0.2s ease;
}

.category-card.open .category-chevron {
    transform: rotate(-135deg);
}

.category-details {
    display: none;
    padding: 0 18px 18px 18px;
    border-top: 0.5px dashed #333;
}

.category-description {
    padding-top: 12px;
}

.main .category-description p {
    font-size: 1.1em;
    line-height: 1.5;
    margin: 0 0 0.75em;
}

.main .category-description p:last-child {
    margin-bottom: 0;
}

/* ---------- Paper cards ---------- */
.paper-card {
    background: #fff;
    border: 1px solid #e2e2e2;
    border-radius: 8px;
    padding: 12px 14px;
    margin: 0 0 12px;
    scroll-margin-top: 8rem;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.paper-card:hover,
.paper-card:target {
    border-color: #999;
    box-shadow: 0 1px 6px rgba(0, 0, 0, 0.06);
}

.paper-card .paper_title {
    margin: 0;
    font-size: 1.12em;
    font-weight: 600;
    line-height: 1.3;
}

.paper-card .paper_title a {
    color: inherit;
}

.paper-card .paper_title a:hover {
    color: purple;
}

.paper-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 4px 10px;
    margin-top: 6px;
    font-size: 0.82em;
    color: #666;
}

.paper-venue {
    padding: 1px 9px;
    border-radius: 999px;
    background: #f0f0f0;
    color: #444;
    cursor: help;
}

.paper-link {
    margin-left: auto;
    white-space: nowrap;
}

.paper-authors {
    margin-top: 4px;
    font-size: 0.85em;
    line-height: 1.4;
    color: #666;
}

.paper-authors strong {
    color: #333;
}

.paper-card .paper_summary {
    margin: 8px 0 0;
    font-size: 0.98em;
    line-height: 1.45;
    color: #333;
}

/* ---------- "All Publications" tree ---------- */
.pub-controls {
    float: right;
    margin-top: 0.8em;
    font-size: 0.5em;
    font-weight: 400;
    letter-spacing: 0.02em;
}

.pub-tree {
    margin-top: 0.25rem;
}

.pub-toggle {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    margin: 0;
    padding: 12px 6px;
    background: none;
    border: 0;
    border-bottom: 0.5px dashed #999;
    text-align: left;
    font: inherit;
    color: inherit;
    cursor: pointer;
}

.pub-toggle:hover .pub-label {
    text-decoration: underline;
}

.pub-toggle:focus-visible {
    outline: 2px solid purple;
    outline-offset: -2px;
}

.pub-section-toggle {
    font-size: 1.35em;
    font-weight: 500;
}

.pub-group-toggle {
    font-size: 1.1em;
    font-weight: 500;
    color: #444;
    margin-left: 22px;
    width: calc(100% - 22px);
    padding: 10px 6px;
}

.pub-chevron {
    flex: 0 0 auto;
    width: 8px;
    height: 8px;
    margin: 0 4px 0 2px;
    border-right: 2px solid #666;
    border-bottom: 2px solid #666;
    transform: rotate(-45deg);
    transition: transform 0.2s ease;
}

.pub-toggle[aria-expanded="true"] .pub-chevron {
    transform: rotate(45deg);
}

.pub-label {
    flex: 1 1 auto;
}

.pub-count {
    flex: 0 0 auto;
    font-size: 0.7em;
    font-weight: 400;
    color: #666;
    background: #f0f0f0;
    border-radius: 999px;
    padding: 2px 10px;
}

.pub-body {
    display: none;
    padding: 10px 0 4px 8px;
}

.pub-group > .pub-body {
    padding-left: 34px;
}

@media (max-width: 600px) {
    .category-summary {
        gap: 12px;
        padding: 12px;
    }
    .category-card .category-icon {
        width: 72px;
        height: 72px;
    }
    .category-title {
        font-size: 1.2em;
    }
    .category-tagline {
        font-size: 0.95em;
    }
    .pub-group-toggle {
        margin-left: 10px;
        width: calc(100% - 10px);
    }
    .pub-group > .pub-body {
        padding-left: 16px;
    }
    .pub-controls {
        float: none;
        display: block;
        margin-top: 4px;
    }
}