#wb-canvas {
  width: 100%;
  max-width: 620px;
  height: auto;
  aspect-ratio: 620 / 420;
  border-radius: var(--radius-md);
  box-shadow: inset 0 0 0 2px var(--color-border);
  display: block;
  margin: 0 auto;
  touch-action: none;
}

.wb-controls {
  display: flex;
  justify-content: center;
  gap: 14px;
  margin-top: 14px;
}
.wb-controls button {
  border: none;
  border-radius: 999px;
  padding: 16px 28px;
  font-weight: 800;
  font-size: 1rem;
  color: #0e0f13;
  background: var(--color-accent, #ee6fa8);
  cursor: pointer;
  user-select: none;
  touch-action: none;
}
.wb-controls button:active {
  filter: brightness(0.9);
}

@media (max-width: 420px) {
  .wb-controls button { padding: 14px 20px; font-size: 0.9rem; }
}