:root { color-scheme: dark; font-family: Georgia, 'Times New Roman', serif; color: #f2efe6; background: #1f2a2e; }
* { box-sizing: border-box; }
body { margin: 0; }
.outburst { width: 100%; max-width: 1000px; margin: auto; padding: 14px; }
.canvas-wrap { position: relative; background: #1b2529; border: 1px solid #3f5050; border-radius: 4px; overflow: hidden; }
canvas { display: block; width: 100%; height: clamp(330px, 58vw, 480px); }
.readouts { position: absolute; top: 12px; right: 14px; display: flex; gap: 16px; margin: 0; padding: 5px 8px; background: #1b2529e6; font: 11px/1.5 ui-monospace, SFMono-Regular, Consolas, monospace; pointer-events: none; }
.readouts div { display: flex; gap: 7px; }
.readouts dt { color: #a8b8b1; }
.readouts dd { margin: 0; font-variant-numeric: tabular-nums; }
.legend { display: flex; flex-wrap: wrap; gap: 10px 20px; margin: 12px 0; font: 11px/1.4 ui-monospace, SFMono-Regular, Consolas, monospace; color: #c9c8bd; }
.legend span { display: inline-flex; align-items: center; gap: 6px; }
.legend i { display: inline-block; width: 8px; height: 8px; border-radius: 1px; }
.legend .infected { background: #8fd3c4; }
.legend .new { background: #efad89; }
.legend .center { background: #f4c95d; border-radius: 50%; }
.controls { display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.buttons { display: flex; gap: 7px; }
button { min-height: 40px; border: 1px solid #647a70; border-radius: 3px; background: #25322f; color: #f2efe6; font: 12px/1.4 ui-monospace, SFMono-Regular, Consolas, monospace; }
button { cursor: pointer; padding: 8px 15px; }
button.primary { color: #172923; background: #8fd3c4; border-color: #8fd3c4; min-width: 70px; font-weight: 600; }
button:hover { border-color: #cee0cd; }
button.primary:hover { background: #c4d7c0; }
button:disabled { opacity: .45; cursor: default; }
button:focus-visible, input:focus-visible { outline: 2px solid #f4c95d; outline-offset: 3px; }
.alpha-control { width: min(190px, 38%); }
.alpha-control label { display: flex; justify-content: space-between; color: #c9c8bd; font: 12px/1.4 ui-monospace, SFMono-Regular, Consolas, monospace; }
.alpha-control output { color: #f4c95d; font-variant-numeric: tabular-nums; }
.alpha-control input { display: block; width: 100%; margin: 5px 0 0; min-height: 24px; accent-color: #f4c95d; cursor: pointer; }
.caption { margin: 12px 0 0; color: #a8b8b1; font-size: 11px; line-height: 1.5; }
.limit-status { color: #f4c95d; margin: 12px 0 0; font-size: 13px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
@media (max-width: 420px) {
  .outburst { padding: 10px; }
  button { padding: 8px 10px; }
  button.primary { min-width: 60px; }
  .buttons { gap: 5px; }
  .alpha-control { width: min(130px, 37%); }
  .readouts { top: 8px; right: 8px; gap: 12px; font-size: 10px; }
}