/* Optional native chart surface: no external toolbar, no hidden attribution. */
.vac-chart{position:relative;display:flex;flex-direction:column;isolation:isolate;width:100%;height:100%;min-height:0;background:#0c1117;color:#aebccc;--vac-line:#263341;--vac-panel:#14212c}
.vac-mount{position:relative;flex:1 1 0;min-height:0;width:100%;overflow:hidden}
.vac-mount>div,.vac-mount iframe{width:100%;height:100%;border:0;display:block}
.vac-footer{display:flex;align-items:center;justify-content:space-between;gap:8px;flex:none;height:20px;padding:0 8px;border-top:1px solid var(--vac-line);font-size:9px;line-height:1;white-space:nowrap}
.vac-footer>[data-vac-connection]{overflow:hidden;text-overflow:ellipsis}
.vac-chart[data-vac-connection=live] [data-vac-connection]{color:#38b99c}
.vac-chart[data-vac-connection=stale] [data-vac-connection],.vac-chart[data-vac-connection=error] [data-vac-connection],.vac-chart[data-vac-connection=disconnected] [data-vac-connection]{color:#d7a855}
.vac-status{position:absolute;inset:0 0 20px;z-index:2;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;padding:24px;text-align:center;background:inherit}
.vac-status[hidden],.vac-actions[hidden]{display:none}
.vac-status strong{font-size:14px;color:inherit;font-weight:550}
.vac-status p{max-width:300px;font-size:12px;line-height:1.6}
.vac-actions{display:flex;gap:8px;flex-wrap:wrap;justify-content:center}
.vac-actions button{min-height:36px;padding:6px 12px;font-size:11px;border:1px solid var(--vac-line);border-radius:6px;color:inherit;background:var(--vac-panel)}
.vac-actions button:focus-visible{outline:2px solid var(--vac-accent);outline-offset:3px}
.vac-loader{width:20px;height:20px;border:2px solid var(--vac-line);border-top-color:var(--vac-accent);border-radius:50%;animation:vacSpin .8s linear infinite}
.vac-chart[data-vac-status=unavailable] .vac-loader{display:none}
.vac-chart[data-vac-theme=light]{background:#fff;color:#50687e;--vac-line:#dee6ee;--vac-panel:#eef3f8}
@keyframes vacSpin{to{transform:rotate(360deg)}}
@media(prefers-reduced-motion:reduce){.vac-loader{animation:none}}