:root {
  color-scheme: dark;
  --bg: #14161a;
  --panel: #1d2027;
  --line: #2e333d;
  --text: #e6e8ec;
  --muted: #8b93a1;
  --accent: #4da3ff;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 16px;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.5 "Segoe UI", system-ui, sans-serif;
}

header {
  display: flex;
  align-items: baseline;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

h1 {
  font-size: 18px;
  font-weight: 600;
  margin: 0;
}

h2 {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin: 0 0 8px;
}

#stats {
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

#stats span { color: var(--text); }

#canvas-wrap {
  overflow-x: auto;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px;
}

canvas { display: block; }

#fleet {
  margin-top: 16px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 12px;
}

#robot-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 6px;
  font-variant-numeric: tabular-nums;
}

#robot-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 6px;
  border-radius: 4px;
  background: #23262e;
}

#robot-list li.idle { color: var(--muted); }

.swatch {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex: none;
}

.name { font-weight: 600; width: 1.4em; }

/* --- Replay controls, the one thing the live viewer has no need for ------ */

#controls {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 12px;
  padding: 10px 12px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 6px;
}

#controls button {
  font: inherit;
  color: var(--text);
  background: #2b303a;
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 4px 12px;
  cursor: pointer;
}

#controls button:hover { border-color: var(--accent); }

#controls button.active {
  border-color: var(--accent);
  color: var(--accent);
}

#play { min-width: 5.5em; }

#scrub {
  flex: 1 1 220px;
  min-width: 160px;
  accent-color: var(--accent);
}

#frame-label {
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  min-width: 8em;
}

.speeds { display: flex; gap: 4px; }

footer {
  margin-top: 16px;
  color: var(--muted);
  font-size: 13px;
}

footer a { color: var(--accent); }

#loading {
  color: var(--muted);
  padding: 40px 0;
}