/* Reference source cards */
.source-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 0.75rem;
}

.source-item {
    border: 1px solid var(--color-border);
    border-radius: 4px;
    padding: 0.75rem;
}

.source-item a {
    font-weight: 600;
    color: var(--color-primary);
}

.source-item p {
    margin-top: 0.3rem;
    font-size: 0.78rem;
    color: var(--color-text-muted);
    line-height: 1.4;
}