body {
  background: #1e1e1e;
  color: #d4d4d4;
  font-family: -apple-system, BlinkMacSystemFont, sans-serif;
  max-width: 1000px;
  margin: 2rem auto;
  padding: 0 1rem;
}

h1 {
  font-weight: 600;
}

a,
a:hover,
a:visited {
  color: white;
}

.sub {
  color: #999;
  max-width: 70ch;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  margin: 1rem 0;
}

.controls input[type="text"] {
  background: #0c0c0c;
  color: #d4d4d4;
  border: 1px solid #333;
  border-radius: 3px;
  padding: 6px 8px;
  font-family: monospace;
  font-size: 14px;
}

.controls button {
  background: #2a2a2a;
  color: #d4d4d4;
  border: 1px solid #444;
  border-radius: 3px;
  padding: 6px 14px;
  cursor: pointer;
  font-size: 14px;
}

.controls button:hover:not(:disabled) {
  background: #333;
}

.controls button:disabled {
  opacity: 0.5;
  cursor: default;
}

#status {
  color: #777;
  font-family: monospace;
  font-size: 13px;
}

#scene {
  width: 100%;
  height: 60vh;
  min-height: 380px;
  border: 1px solid #333;
  border-radius: 4px;
}

#heatmap {
  width: 100%;
  height: 28vh;
  min-height: 200px;
  margin-top: 1rem;
  border: 1px solid #333;
  border-radius: 4px;
}

.view-toggle {
  display: flex;
  gap: 0.75rem;
  font-size: 13px;
  color: #aaa;
}

.view-toggle label {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  cursor: pointer;
}

.layer-ctl {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 13px;
  color: #aaa;
}

.layer-ctl input[type="range"] {
  accent-color: #ff8c42;
}

#attnPanel {
  width: 100%;
  height: 34vh;
  min-height: 220px;
  margin-top: 1rem;
  gap: 0.5rem;
}

.attn-heads-row {
  display: flex;
}

.attn-head {
  flex: 1;
  min-width: 0;
  height: 100%;
  border: 1px solid #333;
  border-radius: 4px;
}

.hint {
  color: #666;
  font-size: 12px;
  max-width: 70ch;
}