.publication-layout {
    --hal-border: #e0e0e0;
    --hal-bg: #ffffff;
    --hal-bg-alt: #f8f9fa;
    --hal-text: #212529;
    --hal-muted: #6c757d;
    --hal-accent: #0056b3;
    --hal-radius: 8px;
    font-family: inherit;
    color: var(--hal-text);
}

.publication-layout .filters {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: flex-end;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: var(--hal-bg-alt);
    border-radius: var(--hal-radius);
}

.publication-layout .filter-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.publication-layout .filter-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--hal-muted);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.publication-layout select {
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--hal-border);
    border-radius: 4px;
    background: var(--hal-bg);
    font-size: 1rem;
    min-width: 120px;
}

.publication-layout .category-title {
    font-size: 1.35rem;
    margin: 2rem 0 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--hal-accent);
    color: var(--hal-accent);
}

.publication-layout .category-title:first-child {
    margin-top: 0;
}

.publication-layout .pub-card {
    padding: 1rem;
    margin-bottom: 0.75rem;
    background: var(--hal-bg);
    border: 1px solid var(--hal-border);
    border-radius: var(--hal-radius);
    transition: box-shadow 0.2s ease;
}

.publication-layout .pub-card:hover {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.publication-layout .pub-title {
    display: block;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--hal-accent);
    text-decoration: none;
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.publication-layout .pub-title:hover {
    text-decoration: underline;
}

.publication-layout .pub-authors {
    font-size: 0.95rem;
    color: var(--hal-text);
    margin-bottom: 0.35rem;
}

.publication-layout .pub-details {
    font-size: 0.85rem;
    color: var(--hal-muted);
}

.publication-layout .hal-loading,
.publication-layout .hal-no-results,
.publication-layout .hal-error {
    padding: 1.5rem;
    text-align: center;
    border-radius: var(--hal-radius);
    background: var(--hal-bg-alt);
}

.publication-layout .hal-error {
    background: #f8d7da;
    color: #721c24;
}

@media (max-width: 600px) {
    .publication-layout .filters {
        flex-direction: column;
        align-items: stretch;
    }
    .publication-layout select {
        width: 100%;
    }
}