#kpi-shelf-app {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    max-width: 860px;
    margin: 0 auto;
    padding: 20px 0;
    color: #2c3e50;
}

#kpi-shelf-status {
    font-size: 13px;
    color: #7f8c8d;
    margin-bottom: 16px;
}

#kpi-shelf-grid {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* ── Карточка — горизонтальна ── */
.kpi-shelf-item {
    display: flex;
    flex-direction: row;
    background: white;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid #e9ecef;
    transition: box-shadow 0.2s;
}

.kpi-shelf-item:hover {
    box-shadow: 0 4px 16px rgba(0,0,0,0.10);
}

/* ── Обкладинка ── */
.kpi-shelf-cover {
    display: block;
    width: 60px;
    min-width: 90px;
    aspect-ratio: 3 / 4;
    overflow: hidden;
    background: #f1f3f5;
    flex-shrink: 0;
}

.kpi-shelf-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top center;
    display: block;
    transition: transform 0.3s;
}

.kpi-shelf-item:hover .kpi-shelf-cover img {
    transform: scale(1.04);
}

.kpi-shelf-nocover {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: #ced4da;
    background: #f8f9fa;
}

/* ── Інфо ── */
.kpi-shelf-info {
    padding: 12px 16px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex: 1;
    min-width: 0;
}

.kpi-shelf-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.kpi-shelf-type {
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 20px;
    font-weight: 500;
    white-space: nowrap;
}

.kpi-shelf-type--learning {
    background: #E8F5E9;
    color: #2E7D32;
}

.kpi-shelf-type--methodical {
    background: #E3F2FD;
    color: #1565C0;
}

.kpi-shelf-type--article {
    background: #F3E5F5;
    color: #6A1B9A;
}

.kpi-shelf-type--thesis {
    background: #FFF8E1;
    color: #F57F17;
}

.kpi-shelf-type--other {
    background: #F5F5F5;
    color: #555;
}

.kpi-shelf-year {
    font-size: 12px;
    color: #999;
}

.kpi-shelf-title {
    font-size: 20px !important;
    font-weight: 600;
}

.kpi-shelf-title a {
    color: #2c3e50;
    text-decoration: none !important;
}

.kpi-shelf-title a:hover {
    color: #1D9E75;
}

.kpi-shelf-authors {
    margin: 2px 0 0 0;
    font-size: 13px;
    color: #444;
    font-weight: 500;
    line-height: 1.4;
}

.kpi-shelf-abstract {
    margin: 6px 0 0 0;
    font-size: 12px;
    color: #888;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ── Мобілка ── */
@media (max-width: 500px) {
    .kpi-shelf-item {
        flex-direction: column;
    }

    .kpi-shelf-cover {
        width: 100%;
        aspect-ratio: 16 / 7;
    }

    .kpi-shelf-cover img {
        object-position: top center;
    }
}

/* ── Контролі ── */
#kpi-shelf-controls {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
    flex-wrap: wrap;
    background: #f8f9fa;
    padding: 16px;
    border-radius: 10px;
    border: 1px solid #e9ecef;
}

#kpi-shelf-search {
    flex: 2;
    min-width: 200px;
    padding: 10px 14px;
    border: 1px solid #ced4da;
    border-radius: 6px;
    font-size: 15px;
    background: white;
    color: #2c3e50;
    box-sizing: border-box;
    transition: border-color 0.2s, box-shadow 0.2s;
}

#kpi-shelf-search:focus {
    outline: none;
    border-color: #1D9E75;
    box-shadow: 0 0 0 3px rgba(29, 158, 117, 0.15);
}

#kpi-shelf-search::placeholder {
    color: #adb5bd;
}

#kpi-shelf-sort {
    padding: 10px 14px;
    border: 1px solid #ced4da;
    border-radius: 6px;
    font-size: 15px;
    background: white;
    color: #2c3e50;
    cursor: pointer;
    flex: 1;
    min-width: 150px;
}

#kpi-shelf-sort:focus {
    outline: none;
    border-color: #1D9E75;
    box-shadow: 0 0 0 3px rgba(29, 158, 117, 0.15);
}