.toolbar {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  margin-bottom: 14px;
}
.colors { display: flex; gap: 6px; }
.swatch {
  width: 26px; height: 26px; border-radius: 50%;
  border: 2px solid #fff; cursor: pointer;
  box-shadow: 0 0 0 1px var(--border);
}
.swatch.active { box-shadow: 0 0 0 2px var(--primary); transform: scale(1.1); }
.size { display: flex; align-items: center; gap: 8px; font-size: 0.85rem; color: var(--muted); }
.size input { accent-color: var(--primary); }

#board {
  width: 100%;
  height: 460px;
  border: 1.5px solid var(--border);
  border-radius: 12px;
  background: #fff;
  touch-action: none;
  cursor: crosshair;
  display: block;
}