:root {
  color-scheme: dark;
  --bg: #0d1014;
  --panel: #161b22;
  --border: #2a313c;
  --text: #d6dde6;
  --muted: #8b96a5;
  --ok: #2ea043;
  --warn: #d29922;
  --bad: #da3633;
  font: 13px/1.4 ui-sans-serif, system-ui, -apple-system, sans-serif;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); }
body.driving { box-shadow: inset 0 0 0 3px var(--ok); }
header, #operator, footer { padding: 8px 12px; background: var(--panel); border-bottom: 1px solid var(--border); }
header { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
header strong { font-size: 15px; margin-right: 4px; }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-bottom: 6px; }
.pill { padding: 2px 8px; border-radius: 999px; border: 1px solid var(--border); color: var(--muted); white-space: nowrap; }
.pill.ok { color: var(--ok); border-color: var(--ok); }
.pill.warn { color: var(--warn); border-color: var(--warn); }
.pill.bad { color: var(--bad); border-color: var(--bad); }
button { background: #21262d; color: var(--text); border: 1px solid var(--border); border-radius: 6px; padding: 4px 10px; cursor: pointer; }
button:hover { border-color: var(--muted); }
button.small { padding: 1px 6px; font-size: 11px; }
kbd { border: 1px solid var(--border); border-bottom-width: 2px; border-radius: 4px; padding: 0 4px; margin: 0 1px; font-size: 11px; }
.deadman { padding: 3px 10px; border-radius: 6px; font-weight: 600; border: 1px solid var(--border); }
.deadman.armed { background: rgba(46, 160, 67, 0.15); color: var(--ok); border-color: var(--ok); }
.deadman.tripped { background: rgba(218, 54, 51, 0.15); color: var(--bad); border-color: var(--bad); }
pre { margin: 0; font: 12px/1.35 ui-monospace, SFMono-Regular, Menlo, monospace; color: var(--muted); white-space: pre-wrap; }
#grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(480px, 1fr)); gap: 8px; padding: 8px; }
.tile { position: relative; background: #000; border: 1px solid var(--border); border-radius: 6px; overflow: hidden; }
.tile.stale { border-color: var(--warn); }
.tile canvas { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; background: #000; }
.tilebar { position: absolute; top: 0; left: 0; right: 0; display: flex; justify-content: space-between; align-items: center; padding: 4px 6px; background: linear-gradient(rgba(0,0,0,.7), transparent); }
.label { font-weight: 600; }
.overlay { position: absolute; left: 6px; bottom: 6px; padding: 4px 6px; background: rgba(0, 0, 0, 0.6); border-radius: 4px; color: #cfd8e3; font-size: 11px; }
footer { border-top: 1px solid var(--border); display: grid; gap: 6px; }
#log { max-height: 120px; overflow: auto; }