/* Source concentration and families: same unit, separate ownership/category. */
.source-vis-section { margin: 20px 0 30px; min-width: 0; }
.source-vis-heading { margin: 0 0 15px; }
.source-vis-scope { margin: 0 0 6px; font-size: 13px; font-weight: 550; color: #142742; }
.source-vis-context { margin: 0; color: #68778c; font-size: 12px; line-height: 1.7; }
.source-vis-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.source-vis-card { min-width: 0; padding: 24px 22px 20px; border: 1px solid #edf1f5; border-radius: 24px; background: #fff; }
.source-vis-title { margin: 0 0 8px; color: #142742; font-size: 17px; letter-spacing: -.3px; line-height: 1.4; font-weight: 550; }
.source-vis-description { margin: 0; color: #68778c; font-size: 12px; line-height: 1.7; }
.source-vis-chart { height: 410px; min-width: 0; margin: 12px -5px 8px; }
.source-vis-graph { width: 100%; height: 100%; min-width: 0; }
.source-vis-note { margin: 8px 0 0; color: #68778c; font-size: 11px; line-height: 1.7; }
.source-vis-legend { display: flex; flex-wrap: wrap; gap: 8px 15px; margin: 6px 0 12px; font-size: 11px; color: #142742; }
.source-vis-key { display: inline-flex; align-items: center; gap: 7px; }
.source-vis-key::before { content: ''; width: 9px; height: 9px; flex-shrink: 0; border-radius: 3px; background: #abbac8; }
.source-vis-key.is-client::before { background: #12bdb7; }
.source-vis-key.is-competitor::before { background: #142742; }
.source-vis-key.is-unknown::before { background: #d9dfe5; }
.source-vis-method { padding: 14px 0 0; color: #68778c; font-size: 12px; line-height: 1.7; }
.source-vis-method summary { width: fit-content; color: #142742; cursor: pointer; }
.source-vis-method p { max-width: 900px; margin: 8px 0 0; }
.source-vis-empty { margin: 18px 0; color: #68778c; font-size: 13px; }
@media (max-width: 1100px) {
    .source-vis-grid { grid-template-columns: minmax(0, 1fr); }
    .source-vis-chart { height: 430px; }
}
@media (max-width: 640px) {
    .source-vis-section { margin: 20px 0 24px; }
    .source-vis-card { padding: 20px 14px 18px; border-radius: 20px; }
    .source-vis-title { font-size: 16px; }
    .source-vis-chart { height: 390px; margin-left: -5px; margin-right: -5px; }
    .source-vis-chart.is-treemap { height: 350px; }
    .source-vis-context { font-size: 11px; }
}