/* =========================================================
   Publication Library – Frontend Styles
   ========================================================= */

:root {
    --pl-primary:      #1a56db;
    --pl-primary-dark: #1040b0;
    --pl-accent:       #e1edff;
    --pl-surface:      #ffffff;
    --pl-border:       #dde3ef;
    --pl-text:         #1f2d3d;
    --pl-muted:        #5e7080;
    --pl-radius:       6px;
    --pl-shadow:       0 1px 4px rgba(0,0,0,.08);
    --pl-transition:   .18s ease;
}

/* ── Wrapper ──────────────────────────────────────────── */
.pl-library {
    font-family: inherit;
    color: var(--pl-text);
    max-width: 100%;
    position: relative;
}

/* ── Controls ─────────────────────────────────────────── */
.pl-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
    margin-bottom: 22px;
    padding: 14px 16px;
    background: var(--pl-accent);
    border: 1px solid var(--pl-border);
    border-radius: var(--pl-radius);
}

.pl-search-wrap {
    position: relative;
    flex: 1 1 220px;
}

.pl-search {
    width: 100%;
    padding: 8px 36px 8px 12px;
    border: 1px solid var(--pl-border);
    border-radius: var(--pl-radius);
    font-size: 14px;
    background: var(--pl-surface);
    color: var(--pl-text);
    transition: border-color var(--pl-transition);
    box-sizing: border-box;
}
.pl-search:focus {
    outline: none;
    border-color: var(--pl-primary);
    box-shadow: 0 0 0 3px rgba(26,86,219,.15);
}

.pl-search-icon {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 15px;
    pointer-events: none;
    opacity: .5;
}

.pl-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    flex: 3 1 auto;
}

.pl-select {
    padding: 7px 10px;
    border: 1px solid var(--pl-border);
    border-radius: var(--pl-radius);
    font-size: 13px;
    background: var(--pl-surface);
    color: var(--pl-text);
    cursor: pointer;
    transition: border-color var(--pl-transition);
}
.pl-select:focus {
    outline: none;
    border-color: var(--pl-primary);
}

.pl-view-toggle {
    display: flex;
    gap: 4px;
    margin-left: auto;
}
.pl-view-btn {
    background: var(--pl-surface);
    border: 1px solid var(--pl-border);
    border-radius: var(--pl-radius);
    padding: 6px 10px;
    cursor: pointer;
    font-size: 16px;
    color: var(--pl-muted);
    transition: all var(--pl-transition);
}
.pl-view-btn.active,
.pl-view-btn:hover {
    border-color: var(--pl-primary);
    color: var(--pl-primary);
    background: var(--pl-accent);
}

/* ── Results info ─────────────────────────────────────── */
.pl-results-info {
    font-size: 13px;
    color: var(--pl-muted);
    margin-bottom: 12px;
    min-height: 18px;
}

/* ── Item grid/list ───────────────────────────────────── */
.pl-items {
    display: grid;
    gap: 16px;
}

/* List view */
.pl-view-list.pl-cols-1,
.pl-view-list.pl-cols-2,
.pl-view-list.pl-cols-3 {
    grid-template-columns: 1fr;
}

/* Grid view */
.pl-view-grid.pl-cols-1 { grid-template-columns: 1fr; }
.pl-view-grid.pl-cols-2 { grid-template-columns: repeat(2, 1fr); }
.pl-view-grid.pl-cols-3 { grid-template-columns: repeat(3, 1fr); }

/* ── Single item ──────────────────────────────────────── */
.pl-item {
    display: flex;
    gap: 16px;
    background: var(--pl-surface);
    border: 1px solid var(--pl-border);
    border-radius: var(--pl-radius);
    padding: 16px;
    box-shadow: var(--pl-shadow);
    transition: box-shadow var(--pl-transition), border-color var(--pl-transition);
}
.pl-item:hover {
    box-shadow: 0 3px 12px rgba(0,0,0,.12);
    border-color: #b3c6e7;
}

/* Grid view: stack vertically */
.pl-view-grid .pl-item {
    flex-direction: column;
}

.pl-item-thumb {
    flex-shrink: 0;
    width: 72px;
    height: 90px;
    border-radius: 4px;
    overflow: hidden;
    background: var(--pl-accent);
    display: flex;
    align-items: center;
    justify-content: center;
}
.pl-view-grid .pl-item-thumb {
    width: 100%;
    height: 160px;
}
.pl-item-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.pl-item-thumb--placeholder .pl-doc-icon {
    font-size: 32px;
    opacity: .5;
}

.pl-item-body {
    flex: 1;
    min-width: 0;
}

.pl-item-meta-top {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 6px;
}

/* ── Badges ───────────────────────────────────────────── */
.pl-badge {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: .04em;
    text-transform: uppercase;
    padding: 2px 7px;
    border-radius: 20px;
    line-height: 1.6;
}
.pl-badge--type {
    background: #e0f0ff;
    color: #0052cc;
}
.pl-badge--lang {
    background: #e6f9ee;
    color: #1a7a40;
}
.pl-badge--if {
    background: #fff7e6;
    color: #92400e;
    border: 1px solid #fcd34d;
}
.pl-badge--docnum {
    background: #f3f4f6;
    color: #6b7280;
    font-weight: 500;
}

/* ── Item title ───────────────────────────────────────── */
.pl-item-title {
    margin: 0 0 8px;
    font-size: 16px;
    font-weight: 600;
    line-height: 1.35;
}
.pl-item-title a {
    color: var(--pl-primary);
    text-decoration: none;
}
.pl-item-title a:hover {
    text-decoration: underline;
}

/* ── Item details ─────────────────────────────────────── */
.pl-item-details {
    display: flex;
    flex-wrap: wrap;
    gap: 4px 16px;
    margin-bottom: 8px;
}
.pl-detail {
    font-size: 13px;
    color: var(--pl-muted);
}
.pl-detail strong {
    color: var(--pl-text);
}

/* ── Category tags ────────────────────────────────────── */
.pl-item-cats {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    margin-bottom: 8px;
}
.pl-cat-tag {
    font-size: 11px;
    background: #f3f4f6;
    border: 1px solid var(--pl-border);
    border-radius: 20px;
    padding: 2px 8px;
    color: var(--pl-muted);
}

/* ── Abstract ─────────────────────────────────────────── */
.pl-item-abstract {
    font-size: 13px;
    color: var(--pl-muted);
    margin: 0 0 10px;
    line-height: 1.5;
}

/* ── Action buttons ───────────────────────────────────── */
.pl-item-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px;
}
.pl-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 13px;
    font-weight: 500;
    padding: 6px 14px;
    border-radius: var(--pl-radius);
    text-decoration: none;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--pl-transition);
    line-height: 1.4;
}
.pl-btn small {
    font-weight: 400;
    opacity: .75;
}
.pl-btn--primary {
    background: var(--pl-primary);
    color: #fff;
}
.pl-btn--primary:hover {
    background: var(--pl-primary-dark);
    color: #fff;
}
.pl-btn--secondary {
    background: var(--pl-accent);
    color: var(--pl-primary);
    border-color: var(--pl-border);
}
.pl-btn--secondary:hover {
    background: #d0e4ff;
    color: var(--pl-primary-dark);
}
.pl-btn--outline {
    background: transparent;
    color: var(--pl-muted);
    border-color: var(--pl-border);
}
.pl-btn--outline:hover {
    border-color: var(--pl-muted);
    color: var(--pl-text);
}

/* ── Pagination ───────────────────────────────────────── */
.pl-pagination {
    margin-top: 24px;
}
.pl-pagination-inner {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}
.pl-page-btn {
    padding: 6px 12px;
    border: 1px solid var(--pl-border);
    border-radius: var(--pl-radius);
    background: var(--pl-surface);
    cursor: pointer;
    font-size: 14px;
    transition: all var(--pl-transition);
}
.pl-page-btn:hover {
    border-color: var(--pl-primary);
    color: var(--pl-primary);
}
.pl-page-btn.active {
    background: var(--pl-primary);
    border-color: var(--pl-primary);
    color: #fff;
}

/* ── Loading ──────────────────────────────────────────── */
.pl-loading {
    position: absolute;
    inset: 0;
    background: rgba(255,255,255,.75);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--pl-radius);
    z-index: 10;
}
.pl-spinner {
    width: 36px;
    height: 36px;
    border: 3px solid var(--pl-border);
    border-top-color: var(--pl-primary);
    border-radius: 50%;
    animation: pl-spin .7s linear infinite;
}
@keyframes pl-spin { to { transform: rotate(360deg); } }

/* ── No results ───────────────────────────────────────── */
.pl-no-results {
    grid-column: 1/-1;
    text-align: center;
    padding: 40px 20px;
    color: var(--pl-muted);
    font-size: 15px;
}

/* ── Responsive ───────────────────────────────────────── */
@media (max-width: 720px) {
    .pl-view-grid.pl-cols-2,
    .pl-view-grid.pl-cols-3 {
        grid-template-columns: 1fr;
    }
    .pl-controls {
        flex-direction: column;
        align-items: stretch;
    }
    .pl-view-toggle {
        margin-left: 0;
    }
}